C Documentation on Accessories

3.8 Main or exhaust steam pressure transmitter 27.1-3

3.8 Main or exhaust steam pressure transmitter 27.1-3

Howden-P+I diagram item no.

n 27.1-3

See also

2 TD Pressure transmitter Sitrans P - DS III - HART (7MF4*3*) [} 1050]

2 OM Pressure transmitter Sitrans P - DS III - HART (7MF4*33) [} 1120]

1048
 Documentation on Accessories C

Main or exhaust steam pressure transmitter 27.1-3 3.8

1049
 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III, DS III PA and DS III FF series
Technical description

■ Overview

SITRANS P pressure transmitters, DS III series, are digital pres- • Infinitely adjustable span from 0.01 bar to 700 bar
sure transmitters featuring extensive user-friendliness and high (0.15 psi to 10153 psi) for DS III with HART communication
accuracy. The parameterization is performed using control keys, • Nominal measuring range from 1 bar to 700 bar
over HART communication, PROFIBUS-PA or FOUNDATION (14.5 psi to 10153 psi) for DS III PA (PROFIBUS PA) and FF
Fieldbus interface. (FOUNDATION Fieldbus)
Extensive functionality enables the pressure transmitter to be • High measuring accuracy
precisely adapted to the plant’s requirements. Operation is very • Parameterization over control keys and HART communication,
simple in spite of the numerous setting options. PROFIBUS PA communication or FOUNDATION Fieldbus in-
Transmitters with type of protection "Intrinsic safety" and "Explo- terface.
sion-proof" may be installed within potentially explosive atmo-
spheres (zone 1) or in zone 0. The transmitters are provided with
an EC type examination certificate and comply with the corre-
■ Application
sponding harmonized European standards (ATEX). The pressure transmitters of the DS III series, can be used in in-
dustrial areas with extreme chemical and mechanical loads.
The transmitters can be equipped with various designs of re- Electromagnetic compatibility in the range 10 kHz to 1 GHz
mote seals for special applications such as the measurement of makes the DS III pressure transmitters suitable for locations with
highly viscous substances. high electromagnetic emissions.
Various versions of the DS III pressure transmitters are available Pressure transmitters with type of protection "Intrinsic safety" and
for measuring: "Explosion-proof" may be installed within potentially explosive at-
• Gauge pressure mospheres (zone 1) or in zone 0. The pressure transmitters are
• Absolute pressure provided with an EC type examination certificate and comply
with the corresponding harmonized European standards
• For differential pressure transmitters (ATEX).
• Filling level
Pressure transmitters with the type of protection "Intrinsic safety"
• Mass level for use in zone 0 may be operated with power supply units of cat-
• Volume level egory "ia" and "ib".
• Volume flow The transmitters can be equipped with various designs of re-
• Mass flow mote seals for special applications such as the measurement of
highly viscous substances.
■ Benefits The pressure transmitter can be operated locally over 3 control
• High quality and long life keys or programmed externally over HART communication or
over PROFIBUS PA or FOUNDATION Fieldbus interface.
• High reliability even under extreme chemical and mechanical
loads
• For aggressive and non-aggressive gases, vapors and liquids
• Extensive diagnosis and simulation functions
• Separate replacement of measuring cell and electronics with-
out recalibration
• Minimum conformity error
• Small long-term drift
• Wetted parts made of high-grade materials (e.g. stainless
steel, Hastelloy, gold, Monel, tantalum)

Siemens FI 01 · 2010 2/69 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III, DS III PA and DS III FF series
Technical description
Pressure transmitter for gauge pressure
• Measured variable: Gauge pressure of aggressive and non-
■ Design
aggressive gases, vapors and liquids.
• Span (infinitely adjustable)
for DS III HART: 0.01 bar to 700 bar (0.15 psi to 10153 psi)
2 • Nominal measuring range
for DS III PA and FF: 1 bar to 700 bar (14.5 psi to 10153 psi)
Pressure transmitters for absolute pressure
• Measured variable: Absolute pressure of aggressive and non-
aggressive gases, vapors and liquids.
• Span (infinitely adjustable)
for DS III HART: 8.3 mbar a ... 100 bar a (0.12 ... 1450 psi a)
• Nominal measuring range
for DS III PA and FF: 250 mbar a ... 100 bar a
(3.63 ... 1450 psi a)
• There are two series:
- Gauge pressure series
- Differential pressure series
Pressure transmitters for differential pressure and flow
• Measured variables:
- Differential pressure
- Small positive or negative pressure
- Flow q ~ √∆p (together with a primary differential pressure
device (see Chapter "Flow Meters"))
• Span (infinitely adjustable) Front view
for DS III HART: 1 mbar ... 30 bar (0.0145 ... 435 psi) The transmitter consists of various components depending on
• Nominal measuring range the order. The possible versions are listed in the ordering infor-
for DS III PA and FF: 20 mbar ... 30 bar (0.29 ... 435 psi) mation. The components described below are the same for all
transmitters.
Pressure transmitters for level
The rating plate (3, Figure "Front view") with the Order No. is lo-
• Measured variable: Level of aggressive and non-aggressive
cated on the side of the housing. The specified number together
liquids in open and closed vessels.
with the ordering information provide details on the optional de-
• Span (infinitely adjustable) sign details and on the possible measuring range (physical
for DS III HART: 25 mbar ... 5 bar (0.363 ... 72.5 psi) properties of built-in sensor element).
• Nominal measuring range The approval label is located on the opposite side.
for DS III PA and FF: 250 mbar ... 5 bar (3.63 ... 72.5 psi)
• Nominal diameter of the mounting flange The housing is made of die-cast aluminium or stainless steel pre-
- DN 80 or DN 100 cision casting. A round cover is screwed on at the front and rear
- 3 inch or 4 inch of the housing. The front cover (6) can be fitted with a viewing
pane so that the measured values can be read directly on the
In the case of level measurements in open containers, the low- digital display. The inlet (4) for the electrical connection is lo-
pressure connection of the measuring cell remains open (mea- cated either on the left or right side. The unused opening on the
surement "compared to atmospheric"). opposite side is sealed by a blanking plug. The protective earth
connection is located on the rear of the housing.
In the case of measurements in closed containers, the lower-
pressure connection has to be connected to the container in or- The electrical connections for the power supply and screen are
der to compensate the static pressure. accessible by unscrewing the rear cover. The bottom part of the
housing contains the measuring cell with process connection
The wetted parts are made from a variety of materials, depend-
(1). The measuring cell is prevented from rotating by a locking
ing on the degree of corrosion resistance required.
screw (8). As the result of this modular design, the measuring
cell and the electronics can be replaced separately from each
other. The set parameter data are retained.
At the top of the housing is a plastic cover (5), which hides the
input keys.

Example for an attached measuring point label

Y01 or Y02
= max. 27 char. .... to .... mbar
Y15 = max. 16 char.
Measuring point number (TAG No.)
Y99 = max. 10 char. 1234
Y16 = max. 27 char. Measuring point text

2/70 Siemens FI 01 · 2010 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III, DS III PA and DS III FF series
Technical description

■ Function
Operation of the electronics with HART communication Operation of the electronics with PROFIBUS PA
communication
9
8
M
0.0.0.0.0
00 8
9
0.0.0.0.0
2
M 00
10
2 3 4 5
µC IA, UH 2 3 4 5 7
PA
µC
7 interface
Power supply

PROFIBUS-PA
HART interface 10

PROFIBUS DP
Power
EEPROM supply
EEPROM 6
6 unit
Coup-
Electronics ler

1 6 Electronics
11
Bus-
EEPROM

1 6 12 Master

EEPROM
Sensor
Sensor

pe Measuring cell
pe
Measuring cell
1 Measuring cell sensor
2 Instrument amplifier
3 Analog-to-digital converter 1 Measuring cell sensor 8 Three input keys
4 Microcontroller 2 Instrument amplifier (local operation)
5 Digital-to-analog converter 3 Analog-to-digital converter 9 Digital display
6 One non-volatile memory each in the measuring cell and 4 Microcontroller 10 Power supply
electronics 5 Electrical isolation 11 DP/PA coupler or link
7 HART interface 6 One non-volatile memory 12 Bus master
8 Three input keys (local operation) each in the measuring cell
9 Digital display and electronics pe Input variable
10 Diode circuit and connection for external ammeter 7 PROFIBUS-PA interface
IA Output current
UH Power supply Function diagram of the electronics
Pe Input variable
The bridge output voltage created by the sensor (1, Figure
"Function diagram of the electronics") is amplified by the instru-
Function diagram of the electronics ment amplifier (2) and digitized in the analog-to-digital converter
(3). The digital information is evaluated in the microcontroller, its
The bridge output voltage created by the sensor (1, Figure linearity and temperature response corrected, and provided on
"Function diagram of the electronics") is amplified by the instru- the PROFIBUS PA through an electrically isolated PA interface
ment amplifier (2) and digitized in the analog-to-digital converter (7).
(3). The digital information is evaluated in a microcontroller, its
linearity and temperature response corrected, and converted in The data specific to the measuring cell, the electronics data, and
a digital-to-analog converter (5) into an output current of 4 to the parameter data are stored in the two non-volatile memories
20 mA. (6). The first memory is linked with the measuring cell, the sec-
ond with the electronics. This modular design means that the
The diode circuit (10) protects against incorrect polarity. electronics and the measuring cell can be replaced separately
The data specific to the measuring cell, the electronics data, and from one another.
the parameter data are stored in the two non-volatile memories Using the three input keys (8) you can parameterize the pressure
(6). The one memory is coupled to the measuring cell, the other transmitter directly at the point of measurement. The input keys
to the electronics. As the result of this modular design, the elec- can also be used to control the view of the results, the error mes-
tronics and the measuring cell can be replaced separately from sages and the operating modes on the digital display (9).
each other.
The results with status values and diagnostic values are trans-
Using the 3 input keys (8) you can parameterize the pressure ferred by cyclic data transmission on the PROFIBUS PA. Param-
transmitter directly at the point of measurement. The input keys eterization data and error messages are transferred by acyclic
can also be used to control the view of the results, the error mes- data transmission. Special software such as SIMATIC PDM is re-
sages and the operating modes on the digital display (9). quired for this.
The HART modem (7) permits parameterization using a protocol
according to the HART specification.
The pressure transmitters with spans ≤ 63 bar measure the input
pressure compared to atmosphere, transmitters with spans
≥ 160 bar compared to vacuum.

Siemens FI 01 · 2010 2/71 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III, DS III PA and DS III FF series
Technical description
Mode of operation of the FOUNDATION Fieldbus electronics Mode of operation of the measuring cells
Measuring cell for gauge pressure
9
8
0.0.0.0.0
M
00

2 2 3 4 5 7
FF 5
μC interface 4

Foundation Fieldbus
Power supply
3
10 1 1 Measuring cell
Power 2 Process connection
EEPROM supply 3 Seal diaphragm
6 unit
Coup- 4 Filling liquid
ler 5 Silicon pressure sensor
Electronics pe Pressure as input variable
2
1 6
pe
EEPROM

Sensor
Measuring cell for gauge pressure, function diagram
The pressure pe is applied through the process connection (2,
pe
Figure "Measuring cell for gauge pressure, function diagram) to
Measuring cell
the measuring cell (1). This pressure is subsequently transmitted
further through the seal diaphragm (3) and the filling liquid (4) to
1 Measuring cell sensor 8 Three input keys the silicon pressure sensor (5) whose measuring diaphragm is
2 Instrument amplifier (local operation) then flexed. This changes the resistance of the four piezo-resis-
3 Analog-to-digital converter 9 Digital display tors fitted in the diaphragm in a bridge circuit. This change in re-
4 Microcontroller 10 Power supply sistance results in a bridge output voltage proportional to the in-
5 Electrical isolation put pressure.
6 One non-volatile memory pe Input variable
each in the measuring cell Measuring cell for gauge pressure, with front-flush diaphragm
and electronics for paper industry
7 FF interface

Function diagram of the electronics

The bridge output voltage created by the sensor (1, Figure
"Function diagram of the electronics") is amplified by the instru-
ment amplifier (2) and digitized in the analog-to-digital converter 5
(3). The digital information is evaluated in the microcontroller, its 4
linearity and temperature response corrected, and provided on
the FOUNDATION Fieldbus through an electrically isolated 1 1 Measuring cell
FOUNDATION Fieldbus Interface (7). 2 Process connection
3 Seal diaphragm
The data specific to the measuring cell, the electronics data, and
4 Filling liquid
the parameter data are stored in the two non-volatile memories
5 Silicon pressure sensor
(6). The one memory is coupled to the measuring cell, the other
pe Pressure as input variable
to the electronics. As the result of this modular design, the elec-
tronics and the measuring cell can be replaced separately from 2
each other. 3
pe
Using the three input keys (8) you can parameterize the pressure
transmitter directly at the point of measurement. The input keys Measuring cell for gauge pressure, with front-flush diaphragm for paper
can also be used to control the view of the results, the error mes- industry, function diagram
sages and the operating modes on the digital display (9). The pressure pe is applied through the process connection (2,
The results with status values and diagnostic values are trans- Figure "Measuring cell for gauge pressure, with front-flush dia-
ferred by cyclic data transmission on the FOUNDATION phragm for paper industry, function diagram") to the measuring
Fieldbus. Parameterization data and error messages are trans- cell (1). This pressure is subsequently transmitted further
ferred by acyclic data transmission. Special software such as through the seal diaphragm (3) and the filling liquid (4) to the sil-
National Instruments Configurator is required for this. icon pressure sensor (5) whose measuring diaphragm is then
flexed. This changes the resistance of the four piezo-resistors fit-
ted in the diaphragm in a bridge circuit. This change in resis-
tance results in a bridge output voltage proportional to the input
pressure.

2/72 Siemens FI 01 · 2010 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III, DS III PA and DS III FF series
Technical description
Measuring cell for absolute pressure from gauge pressure series Measuring cell for differential pressure and flow

2 3 4
1 Seal diaphragm

2
2 O-ring
5
3 Overload diaphragm
4 4 Silicon pressure sensor
1 1
3 - +
5 Process flange
1 Measuring cell 5
1 6 Body of measuring cell
2 Process connection 7 Filling liquid
3 Seal diaphragm
4 Filling liquid 7 6
5 Silicon absolute pressure
sensor Measuring cell for differential pressure and flow, function diagram
pe Absolute pressure as input
variable The differential pressure is transmitted through the seal dia-
2
pe phragms (1, Figure "Measuring cell for differential pressure and
flow, function diagram") and the filling liquid (7) to the silicon
Measuring cell for absolute pressure from the pressure series, function pressure sensor (4).
diagram The measuring diaphragm is flexed by the applied differential
The absolute pressure pe is transmitted through the seal dia- pressure. This changes the resistance of the four piezo-resistors
phragm (3, Figure "Measuring cell for absolute pressure from the fitted in the diaphragm in a bridge circuit. This change in resis-
gauge pressure series, function diagram") and the filling liquid tance results in a bridge output voltage proportional to the abso-
(4) to the silicon absolute pressure sensor (5) whose measuring lute pressure.
diaphragm is then flexed. This changes the resistance of the four An overload diaphragm is installed to provide protection from
piezo-resistors fitted in the diaphragm in a bridge circuit. This overloads. If the measuring limits are exceeded, the overload di-
change in resistance results in a bridge output voltage propor- aphragm (2) is flexed until the seal diaphragm rests on the body
tional to the input pressure. of the measuring cell (7), thus protecting the silicon pressure
sensor from overloads.
Measuring cell for absolute pressure from differential pressure
series Measuring cell for level

3 4 5 6 7
2 3 4 1 Reference vacuum
2 Overload diaphragm
3 Silicon pressure sensor 2
4 O-ring 8
5 5 Process flange +
1 pe -
6 Seal diaphragm
6 7 Body of measuring cell
8 Filling liquid 1 10
pe Absolute pressure as 9
8 7 input variable

1 Flange with tube 6 Silicon pressure sensor

2 Seal diaphragm on mounting 7 O-ring
Measuring cell for absolute pressure from differential pressure series, flange 8 Process flange
function diagram 3 Seal diaphragm 9 Filling liquid
4 Body of measuring cell 10 Capillary with filling liquid
The input pressure pe is transmitted through the seal diaphragm
5 Overload diaphragm of mounting flange
(6, Figure "Measuring cell for absolute pressure from differential
pressure series, function diagram") and the filling liquid (8) to the
silicon pressure sensor (3).
Measuring cell for level, function diagram
The difference in pressure between the input pressure pe and
the reference vacuum (1) on the low-pressure side of the mea- The input pressure (hydrostatic pressure) acts hydraulically on
suring cell flexes the measuring diaphragm. The resistance of the measuring cell through the seal diaphragm on the mounting
the four piezo-resistors fitted in the diaphragm in a bridge circuit flange (2, Figure "Measuring cell for level, function diagram").
thus changes. This change in resistance results in a bridge out- This differential pressure is subsequently transmitted further
put voltage proportional to the absolute pressure. through the measuring cell (3) and the filling liquid (9) to the sil-
icon pressure sensor (6) whose measuring diaphragm is then
An overload diaphragm is installed to provide protection from flexed.
overloads. If the measuring limits are exceeded, the overload di- This changes the resistance of the four piezo-resistors fitted in
aphragm (2) is flexed until the seal diaphragm rests on the body the diaphragm in a bridge circuit.
of the measuring cell (7), thus protecting the silicon pressure
sensor from overloads. This change in resistance results in a bridge output voltage pro-
portional to the differential pressure.
An overload diaphragm is installed to provide protection from
overloads. If the measuring limits are exceeded, the overload di-
aphragm (2) is flexed until the seal diaphragm rests on the body
of the measuring cell (7), thus protecting the silicon pressure
sensor from overloads.

Siemens FI 01 · 2010 2/73 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III, DS III PA and DS III FF series
Technical description
Parameterization DS III Diagnostic functions for DS III HART
Depending on the version, there are a range of options for pa- • Zero correction display
rameterizing the pressure transmitter and for setting or scanning • Event counter
the parameters.
• Limit transmitter
Parameterization using the input keys (local operation)
2
• Saturation alarm
With the input keys you can easily set the most important param- • Slave pointer
eters without any additional equipment. • Simulation functions
Parameterization using HART communication • Maintenance timer
Parameterization using HART communication is performed with Available physical units of display for DS III HART
a HART communicator or a PC.
Table style: Technical specifications 2
Physical variable Physical dimensions
+ Pressure (setting can also Pa, MPa, kPa, bar, mbar, torr, atm, psi,
be made in the factory) g/cm2, kg/cm2, inH2O, inH2O (4 °C),
mmH2O, ftH2O (20 °C), inHg, mmHg
SITRANS P 230 ... 1100 Ω Power supply
transmitter Level (height data) m, cm, mm, ft, in
Volume m3, dm3, hl, yd3, ft3, in3, US gallon, lmp.
HART gallon, bushel, barrel, barrel liquid
communicator
Mass g, kg, t, lb, Ston, Lton, oz

Communication between a HART communicator and a pressure transm. Volume flow m3/d, m3/h, m3/s, l/min, l/s, ft3/d, ft3/min,
ft3/s, US gallon/min, US gallon/s
When parameterizing with the HART communicator, the connec-
Mass flow t/d, t/h, t/min, kg/d, kg/h, kg/min, kg/s, g/d,
tion is made directly to the 2-wire system. g/h, g/min, g/s, lb/d, lb/h, lb/min, lb/s,
LTon/d, LTon/h, STon/d, STon/h, STon/min
Temperature K, °C, °F, °R
+
Miscellaneous %, mA
-

SITRANS P 230 ... 500 Ω Power supply

Parameterization through PROFIBUS PA interface
transmitter Fully digital communication through PROFIBUS PA, profile 3.0, is
PC or
particularly user-friendly. The PROFIBUS puts the DS III PA is in
HART laptop
modem
connection with a process control system, e.g. SIMATIC PSC 7.
Communication is possible even in a potentially explosive envi-
USB/RS 232
ronment.
For parameterization through PROFIBUS you need suitable soft-
ware, e.g. SIMATIC PDM (Process Device Manager).
HART communication between a PC communicator and a pressure
transmitter Parameterization through FOUNDATION Fieldbus Interface
When parameterizing with a PC, the connection is made through Fully digital communication through FOUNDATION Fieldbus is
a HART modem. particularly user-friendly. Through the FOUNDATION Fieldbus
The signals needed for communication in conformity with the the DS III FF is connected to a process control system. Commu-
HART 5.x or 6.x protocols are superimposed on the output cur- nication is possible even in a potentially explosive environment.
rent using the Frequency Shift Keying (FSK) method.
For parameterization through the FOUNDATION Fieldbus you
Adjustable parameters, DS III HART need suitable software, e.g. National Instruments Configurator.
Parameters Input keys HART Adjustable parameters for DS III PA and FF
(DS III HART) communication
Parameters Input keys PROFIBUS PA and
Start of scale x x (DS III HART) FOUNDATION
Full-scale value x x Fieldbus interface
Electrical damping x x Electrical damping x x
Start-of-scale value without application x x Zero adjustment (correction of x x
of a pressure ("Blind setting")
position)
Full-scale value without application of a x x
pressure ("Blind setting") Key and/or function disabling x x

Zero adjustment x x Source of measured-value dis- x x

play
Current transmitter x x
Physical dimension of display x x
Fault current x x
Disabling of keys, write protection x x1)
Position of decimal point x x
Type of dimension and actual dimen- x x Bus address x x
Characteristic (linear / square-rooted) x2) x2) Adjustment of characteristic x x
Input of characteristic x Input of characteristic x
Freely-programmable LCD x Freely-programmable LCD x
Diagnostics functions x Diagnostics functions x
1) Cancel apart from write protection
2) Only differential pressure

2/74 Siemens FI 01 · 2010 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III, DS III PA and DS III FF series
Technical description
Diagnostic functions for DS III PA and FF
• Event counter
• Slave pointer
• Maintenance timer

2
• Simulation functions
• Display of zero correction
• Limit transmitter
• Saturation alarm
Physical dimensions available for the display
Physical variable Physical dimensions
Pressure (setting can also MPa, kPa, Pa, bar, mbar, torr, atm, psi,
be made in the factory) g/cm2, kg/cm2, mmH2O, mmH2O (4 °C),
inH2O, inH20 (4 °C), ftH2O (20 °C),
mmHg, inHg
Level (height data) m, cm, mm, ft, in, yd
Volume m3, dm3, hl, yd3, ft3, in3, US gallon, lmp.
gallon, bushel, barrel, barrel liquid
Volume flow m3/s, m3/min, m3/h, m3/d, l/s, l/min, l/h, l/
d, Ml/d, ft3/s, ft3/min, ft3/h, ft3/d, US gal-
lon/s, US gallon/min, US gallon/h, US gal-
lon/d, bbl/s, bbl/min, bbl/h, bbl/d
Mass flow g/s, g/min, g/h, g/d, kg/s, kg/min, kg/h,
kg/d, t/s, t/min, t/h, /t/d, lb/s, lb/min, lb/h,
lb/d, STon/s, STon/min, STon/h, STon/d,
LTon/s, LTon/min, LTon/h, LTon/d
Total mass flow t, kg, g, lb, oz, LTon, STon
Temperature K, °C, °F, °R
Miscellaneous %

Siemens FI 01 · 2010 2/75 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series
for gauge pressure

■ Technical specifications
SITRANS P, DS III series for gauge pressure
HART PROFIBUS PA or FOUNDATION Fieldbus
Input
2 Measured variable Gauge pressure
Spans (infinitely adjustable) or Span Max. perm. test pres- Nominal measuring Max. perm. test pres-
nominal measuring range and sure range sure
max. permissible test pressure
0.01 ... 1 bar g 6 bar g 1 bar g 6 bar g
(0.15 ... 14.5 psi g) (87 psi g) (14.5 psi g) (87 psi g)
0.04 ... 4 bar g 10 bar g 4 bar g 10 bar g
(0.58 ... 58 psi g) (145 psi g) (58 psi g) (145 psi g)
0.16 ... 16 bar g 32 bar g 16 bar g 32 bar g
(2.23 ... 232 psi g) (464 psi g) (232 psi g) (464 psi g)
0.6 ... 63 bar g 100 bar g 63 bar g 100 bar g
(9.14 ... 914 psi g) (1450 psi g) (914 psi g) (1450 psi g)
1.6 ... 160 bar g 250 bar g 160 bar g 250 bar g
(23.2 ... 2320 psi g) (3626 psi g) (2320 psi g) (3626 psi g)
4.0 ... 400 bar g 600 bar g 400 bar g 600 bar g
(58 ... 5802 psi g) (8700 psi g) (5802 psi g) (8700 psi g)
7.0 ... 700 bar g 800 bar g 700 bar g 800 bar g
(102 ... 10153 psi g) (11603 psi g) (10153 psi g) (11603 psi g)
Lower measuring limit
• Measuring cell with silicone oil filling 30 mbar a (0.435 psi a)
• Measuring cell with inert filling liquid 30 mbar a (0.435 psi a)
Upper measuring limit 100% of max. span (max. 160 bar g (2320 psi g) with oxygen measurement and inert liquid)
Output
Output signal 4 ... 20 mA Digital PROFIBUS PA or FOUNDATION Fieldbus
signal
• Lower limit (infinitely adjustable) 3.55 mA, factory preset to 3.84 mA -
• Upper limit (infinitely adjustable) 23 mA, factory preset to 20.5 mA or optionally set -
to 22.0 mA
Load
• Without HART communication RB ≤ (UH - 10.5 V)/0.023 A in Ω, -
UH : Power supply in V
• With HART communication RB = 230 ... 500 Ω (SIMATIC PDM) or -
RB = 230 ... 1100 Ω (HART Communicator)
Physical bus - IEC 61158-2
Protection against polarity reversal Protected against short-circuit and polarity reversal. Each connection against the other with max.
supply voltage.
Accuracy To EN 60770-1
Reference conditions Increasing characteristic, start-of-scale value 0 bar, stainless steel seal diaphragm, silicone oil filling,
(All error data refer always refer to the set room temperature 25 °C (77 °F)) r: Span ratio (r = max. span/set span)
span)
Error in measurement and fixed-point setting
(including hysteresis and repeatability)
• Linear characteristic ≤ 0,075 %
- r ≤ 10 ≤ (0.0029 ⋅ r + 0.071) %
- 10 < r ≤ 30 ≤ (0.0045 ⋅ r + 0.071) %
- 30 < r ≤ 100 ≤ (0.005 ⋅ r + 0.05) %
Long-term drift (temperature change ±30 °C ≤ (0.25 ⋅ r) % every 5 years ≤ 0.25 % every 5 years
(±54 °F))
Influence of ambient temperature
• at -10 ... +60 °C (14 ... 140 °F) ≤ (0.08 ⋅ r + 0.1) % ≤ 0,3 %
(at 700 bar: ≤ (0.1 ⋅ r + 0.2) %)
• at -40 ... -10 °C and +60 ... +85 °C ≤ (0.1 ⋅ r + 0.15) %/10 K ≤ 0.25 %/10 K
(-40 ... +14 °F and 140 ... 185 °F)
Measured Value Resolution - 3 ⋅ 10-5 of nominal measuring range

2/76 Siemens FI 01 · 2010 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series
for gauge pressure
SITRANS P, DS III series for gauge pressure
HART PROFIBUS PA or FOUNDATION Fieldbus
Rated operating conditions
Degree of protection (to EN 60529) IP65
Process temperature
• Measuring cell with silicone oil filling -40 ... +100 °C (-40 ... +212 °F)
2
• Measuring cell with inert filling liquid -20 ... +100 °C (-4 ... +212 °F)
• In conjunction with dust explosion protec- -20 ... +60 °C (-4 ... +140 °F)
tion
Ambient conditions
• Ambient temperature
- Digital indicators -30 ... +85 °C (-22 ... +185 °F)
• Storage temperature -50 ... +85 °C (-58 ... +185 °F)
• Climatic class
- Condensation Permissible
• Electromagnetic compatibility
- Emitted interference and interference To EN 61326 and NAMUR NE 21
immunity
Design
Weight (without options) ≈ 1.5 kg (≈ 3.3 lb)
Housing material Poor in copper die-cast aluminium, GD-AlSi12 or stainless steel precision casting, mat. No. 1.4408
Wetted parts materials
• Connection shank Stainless steel, mat. No. 1.4404/316L or Hastelloy C4, mat. No. 2.4610
• Oval flange Stainless steel, mat. No. 1.4404/316L
• Seal diaphragm Stainless steel, mat. No. 1.4404/316L or Hastelloy C276, mat. No. 2.4819
Measuring cell filling Silicone oil or inert filling liquid (max. 160 bar (2320 psi g) with oxygen measurement)
Process connection Connection shank G½B to DIN EN 837-1, female thread ½ -14 NPT or oval flange (PN 160
(MWP 2320 psi g)) to DIN 19213 with mounting thread M10 or 7/16-20 UNF to EN 61518
Material of the mounting bracket
• Steel Sheet steel, Mat. No. 1.0330, chrome-plated
• Stainless steel Stainless steel, Mat. No. 1.4301 (SS304)
Power supply UH Supplied through bus
Terminal voltage on transmitter 10.5 ... 45 V DC -
10.5 ... 30 V DC in intrinsically-safe mode
Separate 24 V power supply necessary - No
Bus voltage
• Not Ex - 9 ...32 V
• With intrinsically-safe operation - 9 ...24 V
Current consumption
• Basic current (max.) - 12.5 mA
• Startup current ≤ basic current - Yes
• Max. current in event of fault - 15.5 mA
Fault disconnection electronics (FDE) avail- - Yes
able

Siemens FI 01 · 2010 2/77 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series
for gauge pressure
SITRANS P, DS III series for gauge pressure
HART PROFIBUS PA or FOUNDATION Fieldbus
Certificate and approvals
Classification according to pressure equip- For gases of fluid group 1 and liquids of fluid group 1; complies with requirements of Article 3, para-

2
ment directive (DRGL 97/23/EC) graph 3 (sound engineering practice)
Explosion protection
• Intrinsic safety "i" PTB 99 ATEX 2122
- Identification Ex II 1/2 G EEx ia/ib IIB/IIC T6
- Permissible ambient temperature -40 ... +85 °C (-40 ... +185 °F) temperature class T4;
-40 ... +70 °C (-40 ... +158 °F) temperature class T5;
-40 ... +60 °C (-40 ... +140 °F) temperature class T6
- Connection To certified intrinsically-safe circuits with maxi- FISCO supply unit:
mum values: Uo = 17.5 V, Io = 380 mA, Po = 5.32 W
Ui = 30 V, Ii = 100 mA, Linear barrier:
Pi = 750 mW; Ri = 300 Ω Uo = 24 V, Io = 250 mA, Po = 1.2 W
- Effective internal inductance/capacitance L i = 0.4 mH, Ci = 6 nF L i = 7 µH, Ci = 1.1 nF
• Explosion-proof "d" PTB 99 ATEX 1160
- Identification Ex II 1/2 G EEx d IIC T4/T6
- Permissible ambient temperature -40 ... +85 °C (-40 ... +185 °F) temperature class T4;
-40 ... +60 °C (-40 ... +140 °F) temperature class T6
- Connection To circuits with values: UH = 10.5 ... 45 V DC To circuits with values: UH = 9 ... 32 V DC
• Dust explosion protection for zone 20 PTB 01 ATEX 2055
- Identification Ex II 1 D IP65 T 120 °C
Ex II 1/2 D IP65 T 120 °C
- Permissible ambient temperature -40 ... +85 °C (-40 ... +185 °F)
- Max.surface temperature 120 °C (248 °F)
- Connection To certified intrinsically-safe circuits with maxi- FISCO supply unit:
mum values: Uo = 17.5 V, Io = 380 mA, Po = 5.32 W
Ui = 30 V, Ii = 100 mA, Linear barrier:
Pi = 750 mW, Ri = 300 Ω Uo = 24 V, Io = 250 mA, Po = 1.2 W
- Effective internal inductance/capacitance L i = 0.4 mH, Ci = 6 nF L i = 7 µH, Ci = 1.1 nF
• Dust explosion protection for zone 21/22 PTB 01 ATEX 2055
- Identification Ex II 2 D IP65 T 120 °C
- Connection To circuits with values: UH = 10.5 ... 45 V DC; To circuits with values: UH = 9 ... 32 V DC;
Pmax = 1.2 W Pmax = 1.2 W
• Type of protection "n" (zone 2) TÜV 01 ATEX 1696 X Planned
- Identification Ex II 3 G EEx nA L IIC T4/T5/T6 -
• Explosion protection to FM Certificate of Compliance 3008490
- Identification (XP/DIP) or (IS); (NI) CL I, DIV 1, GP ABCD T4...T6; CL II, DIV 1, GP EFG; CL III; CL I, ZN 0/1 AEx ia IIC T4...T6; CL I,
DIV 2, GP ABCD T4...T6; CL II, DIV 2, GP FG; CL III
• Explosion protection to CSA Certificate of Compliance 1153651
- Identification (XP/DIP) or (IS) CL I, DIV 1, GP ABCD T4...T6; CL II, DIV 1, GP EFG; CL III; Ex ia IIC T4...T6; CL I, DIV 2, GP ABCD
T4...T6; CL II, DIV 2, GP FG; CL III

2/78 Siemens FI 01 · 2010 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series
for gauge pressure
HART communication Communication FOUNDATION
Fieldbus
HART communication 230 ... 1100 Ω
Function blocks 3 function blocks analog input,
Protocol HART Version 5.x 1 function block PID
Software for computer SIMATIC PDM • Analog input
PROFIBUS PA communication
Simultaneous communication with 4
- Adaptation to customer-specif- Yes, linearly rising or falling char-
ic process variables acteristic
2
master class 2 (max.) - Electrical damping T63 , 0 ... 100 s
The address can be set using Configuration tool or local opera- adjustable
tion (standard setting address - Simulation function Output/input (can be locked within
126) the device with a bridge)
Cyclic data usage - Failure mode Can be parameterized (last good
• Output byte 5 (one measuring value) or value, substitute value, incorrect
10 (two measuring values) value)
• Input byte 0, 1, or 2 (register operating mode - Limit monitoring Yes, one upper and lower warning
and reset function for metering) limit and one alarm limit respec-
tively
Internal preprocessing
- Square-rooted characteristic Yes
Device profile PROFIBUS PA Profile for Process for flow measurement
Control Devices Version 3.0,
Class B • PID Standard FF function block
Function blocks 2 • Physical block 1 Resource block
• Analog input Transducer blocks 1 transducer block Pressure with
calibration, 1 transducer block
- Adaptation to customer- Yes, linearly rising or falling char- LCD
specific process variables acteristic
• Pressure transducer block
- Electrical damping T63 , 0 ... 100 s
adjustable - Can be calibrated by applying Yes
two pressures
- Simulation function Input /Output
- Monitoring of sensor limits Yes
- Failure mode Can be parameterized (last good
value, substitute value, incorrect - Simulation function: Measured Constant value or over para-
value) pressure value, sensor temper- meterizable ramp function
ature and electronics tempera-
- Limit monitoring Yes, one upper and lower warning ture
limit and one alarm limit respec-
tively
• Register (totalizer) Can be reset, preset, optional
direction of counting, simulation
function of register output
- Failure mode Can be parameterized (summation
with last good value, continuous
summation, summation with incor-
rect value)
- Limit monitoring One upper and lower warning limit
and one alarm limit respectively
• Physical block 1
Transducer blocks 2
• Pressure transducer block
- Can be calibrated by applying Yes
two pressures
- Monitoring of sensor limits Yes
- Specification of a container Max. 30 nodes
characteristic with
- Square-rooted characteristic Yes
for flow measurement
- Gradual volume suppression Parameterizable
and implementation point of
square-root extraction
- Simulation function for mea- Constant value or over para-
sured pressure value and sen- meterizable ramp function
sor temperature

Siemens FI 01 · 2010 2/79 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series
for gauge pressure
Selection and Ordering data Order No. Selection and Ordering data Order No.
SITRANS P pressure transmitters for gauge 7MF 4 0 3 3 - SITRANS P pressure transmitters for gauge 7MF 4 0 3 3 -
pressure, series DS III HART pressure, series DS III HART
77777 - 7777 77777 - 7777
Measuring cell filling Measuring cell Display

2
cleaning • Without indicator 0
Silicone oil Standard } 1 • Without visible digital indicator (digital indicator } 1
Inert liquid1) Grease-free 3 hidden, setting: mA)
Span • With visible digital indicator, setting: mA 6
0.01 ... 1 bar g (0.15 ... 14.5 psi g) } B • with customer-specific digital indicator 7
0.04 ... 4 bar g (0.58 ... 58 psi g) } C (setting as specified, Order code "Y21" or "Y22"
0.16 ... 16 bar g (2.32 ... 232 psi g) } D required)
0.63 ... 63 bar g (9.14 ... 914 psi g) } E } Available ex stock
1.6 ... 160 bar g (23.2 ... 2320 psi g) } F
Power supply units see "SITRANS I power supply units and isolation
4.0 ... 400 bar g (58.0 ... 5802 psi g) } G
amplifiers".
7,0 ... 700 bar g (102.0 ...10153 psi g) } J
Factory-mounting of shut-off valves and valve manifolds see page
Wetted parts materials 2/147.
Seal diaphragm Process connection
Included in delivery of the device:
Stainless steel Stainless steel } A • Brief instructions (Leporello)
Hastelloy Stainless steel B • CD-ROM with detailed documentation
Hastelloy Hastelloy C 1)
For oxygen application, add Order code E10.
Version as diaphragm seal 2) 3) Y 2)
When the manufacture’s certificate M (calibration certificate) has to be
Process connection ordered for transmitters with diaphragm seals, it is recommended only to
order this certificate exclusively with the diaphragm seals. The measuring
• Connection shank G½B to EN 837-1 } 0
accuracy of the total combination is certified here.
• Female thread ½-14 NPT 1 3)
Whe the acceptance test certificate 3.1 for transmitters with direct-con-
• Oval flange made of stainless steel nected diaphragm seals is ordered, this certificate must also be ordered
- Mounting thread 7/16-20 UNF to EN 61518 2 with the corresponding seals.
4)
- Mounting thread M10 to DIN 19213 3 Not together with Electrical connection „Screwed gland Pg 13.5“ and
„Han7D plug“.
- Mounting thread M12 to DIN 19213 4 5)
Without cable gland, with blanking plug
• Male thread M20 x 1,5 5 6) With enclosed cable gland EEx ia and blanking plug
• Male thread ½-14 NPT 6 7)
Not together with types of protection "Explosion-proof" and "Ex nA", "Intrin-
sic safety" and "Explosion-proof".
Non-wetted parts materials 8)
M12 delivered without cable socketsafety and explosion-proof"
• Housing made of die-cast aluminium } 0
• Housing stainless steel precision casting4) 3
Version
• Standard version 1
• International version, English label inscriptions, } 2
documentation in 5 languages on CD
Explosion protection
• Without A
• With ATEX, Type of protection:
- "Intrinsic safety (EEx ia)" B
- "Explosion-proof (EEx d)"5) D
- "Intrinsic safety and explosion-proof enclosure P
(EEx ia + EEx d)"6)
- "Ex nA/nL (zone 2)" E
- "Intrinsic safety, explosion-proof enclosure and } R
dust explosion protection (EEx ia + EEx d +
Zone 1D/2D)"6)
• With FM + CSA, Type of protection:
- "Intrinsic safety and explosion-proof NC
(is + xp)"5)
Electrical connection / cable entry
• Screwed gland Pg 13.5 (adapter)7) A
• Screwed gland M20x1.5 } B
• Screwed gland ½-14 NPT C
• Han 7D plug (plastic housing) incl. mating D
connector7)
• M12 connector (metal)8) F

2/80 Siemens FI 01 · 2010 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series
for gauge pressure
Selection and Ordering data Order No. Selection and Ordering data Order No.
SITRANS P pressure transmitters for gauge SITRANS P pressure transmitters for gauge
pressure pressure
DS III PA (PROFIBUS PA) series 7MF 4 0 3 4 - DS III PA (PROFIBUS PA) series 7MF 4 0 3 4 -

2
DS III FF series (FOUNDATION Fieldbus) 7MF 4 0 3 5 - DS III FF series (FOUNDATION Fieldbus) 7MF 4 0 3 5 -
77777 - 7777 77777 - 7777
Measuring cell filling Measuring cell Display
cleaning • Without indicator 0
Silicone oil Standard 1 • Without visible digital indicator (digital indicator } 1
Inert liquid1) Grease-free 3 hidden, setting: mA)
Nominal measuring range • With visible digital indicator 6
1 bar g (14.5 psi g) B • With customer-specific digital indicator (setting 7
as specified, Order code "Y21" or required)
4 bar g (58 psi g) C
16 bar g (232 psi g) D Factory-mounting of shut-off valves and valve manifolds see page
63 bar g (914 psi g) E 2/147.
160 bar g (2320 psi g) F The device is delivered together with brief instructions (Leporello) and a
400 bar g (5802 psi g) G CD-ROM containing detailed documentation.
700 bar g (10153 psi g) J 1)
For oxygen application, add Order code E10.
2)
Wetted parts materials When the manufacture’s certificate M (calibration certificate) has to be
ordered for transmitters with diaphragm seals, it is recommended only to
Seal diaphragm Process connection order this certificate exclusively with the diaphragm seals. The measuring
Stainless steel Stainless steel A accuracy of the total combination is certified here.
3)
Hastelloy Stainless steel B Whe the acceptance test certificate 3.1 for transmitters with direct-con-
nected diaphragm seals is ordered, this certificate must also be ordered
Hastelloy Hastelloy C with the corresponding seals.
Version as diaphragm seal2) 3) Y 4)
Without cable gland, with blanking plug.
5)
Process connection With enclosed cable gland EEx ia and blanking plug.
6) M12 delivered without cable socket
• Connection shank G½B to EN 837-1 0
• Female thread ½-14 NPT 1
• Oval flange made of stainless steel
- Mounting thread 7/16-20 UNF to EN 61518 2
- Mounting thread M10 to DIN 19213 3
- Mounting thread M12 nach DIN 19213 4
• Male thread M20 x 1,5 5
• Male thread ½-14 NPT 6
Non-wetted parts materials
• Housing made of die-cast aluminium 0
• Housing stainless steel precision casting 3
Version
• Standard version 1
• International version, English label inscriptions, 2
documentation in 5 languages on CD
Explosion protection
• Without A
• With ATEX, Type of protection:
- "Intrinsic safety (EEx ia)" B
- "Explosion-proof (EEx d)"4) D
- "Intrinsic safety and explosion-proof enclosure P
(EEx ia + EEx d)"5)
- "Ex nA/nL (zone 2)" E
- "Intrinsic safety, explosion-proof enclosure and R
dust explosion protection (EEx ia + EEx d +
Zone 1D/2D)"6) (not for DS III FF)
• With FM + CSA, Type of protection:
- "Intrinsic safety and explosion-proof NC
(is + xp)"5)
Electrical connection / cable entry
• Screwed gland M20x1.5 B
• Screwed gland ½-14 NPT C
• Plug M12 (metal)6) F

Siemens FI 01 · 2010 2/81 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series
for gauge pressure

Selection and Ordering data Order code Selection and Ordering data Order code
Further designs HART PA FF Additional data HART PA FF
Add "-Z" to Order No. and specify Order code. Add "-Z" to Order No. and specify Order
code.
Pressure transmitter with mounting
bracket made of: Measuring range to be set Y01 9
2 • Steel
• Stainless steel
A01
A02
9
9
9
9
9
9
Specify in plain text (max. 5 digits):
Y01: ... up to ... mbar, bar, kPa, MPa, psi
Plug Measuring point number (TAG No.) Y15 9 9 9
• Han 7D (metal, gray) A30 9 Max. 16 characters, specify in plain text:
• Han 8U (instead of Han 7D) A31 9 Y15: ...........................................
Cable sockets for M12 connectors (metal) A50 9 9 9 Measuring point text Y16 9 9 9
Max. 27 characters, specify in plain text:
Rating plate inscription Y16: ...........................................
(instead of German)
• English B11 9 9 9 Entry of HART address (TAG) Y17 9
• French B12 9 9 9 Max. 8 characters, specify in plain text:
Y17: ...........................................
• Spanish B13 9 9 9
• Italian B14 9 9 9 Setting of pressure indication in pressure Y21 9 9 9
units
English rating plate B21 9 9 9
Specify in plain text (standard setting: mA):
Pressure units in inH2O or psi Y21: mbar, bar, kPa, MPa, psi, ...
Quality inspection certificate (Factory cali- C11 9 9 9 Note:
bration) to IEC 60770-21) The following pressure units can be selected:
bar, mbar, mm H2O*), inH2O*), ftH2O*),
Acceptance test certificate2) C12 9 9 9 mmHG, inHG, psi, Pa, kPa, MPa, g/cm2,
To EN 10204-3.1 kg/cm2, Torr, ATM oder %
Factory certificate C14 9 9 9 *) ref. temperature 20 °C
To EN 10204-2.2 Setting of pressure indication in Y22 + 9
"Functional Safety (SIL)" certificate 9 non-pressure units3) Y01
C20
Specify in plain text:
"PROFIsafe“ certificate and protocol C21 9 Y22: ..... up to ..... l/min, m3/h, m, USgpm, ...
Setting of upper limit of output signal to 9 (specification of measuring range in
D05
22.0 mA pressure units "Y01" is essential, unit with
max. 5 characters)
Manufacturer's declaration acc. to NACE D07 9 9 9
Preset bus address Y25 9
Type of protection IP68 D12 9 9 9 (possible between 1 and 126)
(only for M20x1.5 and ½-14 NPT) Specify in plain text:
Digital indicator alongside the input keys D27 9 9 9 Y25: .....................
(only together with the devices 7MF4033- Only "Y01", "Y21", "Y22", "Y25" and "D05" can be factory preset
....0-.A.6 or -.A.7-Z, Y21 or Y22 + Y01)
9 = available
Supplied with oval flange D37 9 9 9
Ordering example
(1 item), PTFE packing and screws in thread
of oval flange Item line: 7MF4033-1EA00-1AA7-Z
B line: A01 + Y01 + Y21
Use in or on zone 1D/2D E01 9 9 9
C line: Y01: 10 ... 20 bar (145 ... 290 psi)
(only together with type of protection
"Intrinsic safety (EEx ia)") C line: Y21: bar (psi)
1)
Use on zone 0 E02 9 9 9 When the manufacture’s certificate M (calibration certificate) has to be orde
(only together with type of protection red for transmitters with diaphragm seals, it is recommended only to order
"Intrinsic safety (EEx ia)") this certificate exclusively with the diaphragm seals. The measuring accu-
racy of the total combination is certified here.
2)
Oxygen application E10 9 9 9 Whe the acceptance test certificate 3.1 for transmitters with direct-con-
(max. 120 bar g (1740 psi g) at 60°C (140 °F) nected diaphragm seals is ordered, this certificate must also be ordered
for oxygen measurement and inert liquid) with the corresponding seals.
3)
Preset values can only be modified over SIMATIC PDM.
Explosion-proof "Intrinsic safety" to E25 9 9 9
INMETRO (Brazil)
(only for transmitter 7MF4...-.....-.B..)
Explosion-proof "Intrinsic safety" to E55 9 9 9
NEPSI (China)
(only for transmitter 7MF4...-.....-.B..)
Explosion protection "Explosion-proof" to E56 9 9 9
NEPSI (China)
(only for transmitter 7MF4...-.....-.D..)
Explosion-proof "Zone 2" to NEPSI (China) E57 9 9 9
(only for transmitter 7MF4...-.....-.E..)

2/82 Siemens FI 01 · 2010 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series
for gauge pressure

■ Dimensional drawings
15 55
144 (5.67) (2.2) approx. 30 (1.2)
4) 100 (3.94)
(0.6)
approx. 96 (3.78)
2
74 51 28 6 2
(2.0) (1.1)
(2.9)

(0.8)
20

(1.97)
50
(3.15)
ø 80

117 (4.6)
3 3

171 (6.7)
237 (9.3)
1)
1) 4 8
5

68 (2.7)

120 (4.7)
1
72 (2.8)

(1,44)
36,5
123 (4.8)

5) 7
min. 90 (3.6)

ø 50 ... 60 105 (4.1)

(1.97 ... 2.36)
1 Process connection:
- ½-14 NPT,
- onnection shankG½B or
- oval flange
2 Blanking plug
3 Electrical connection:
- screwed gland Pg 13,5 (adapter)2) 3),
- screwed gland M20x1,5 3),
- screwed gland ½-14 NPT or
- Han 7D/ Han 8U 2) 3) plug
4 Terminal side
5 Electronic side, digital display (longer overall
length for cover with window) 1) Allow approx. 20 mm (0.79 inch) thread length to permit unscrewing
6 Protective cover over keys 2) Not with type of protection "Explosion-proof enclosure"
7 Mounting bracket (option) 3) Not with type of protection "FM + CSA" [is + xp]"
8 Screw cover - safety bracket (only for type of protection 4) For Pg 13,5 with adapter approx. 45 mm (1.77 inch)
"Explosion-proof enclosure", not shown in the drawing) 5) Minimum distance for rotating

SITRANS P pressure transmitters, DS III HART series for gauge pressure, dimensions in mm (inch)

Siemens FI 01 · 2010 2/83 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series
for gauge pressure

15 55
144 (5.67) (2.2) approx. 30 (1.2)
4) 100 (3.94)
(0.6)
74 51 28 6 2
(2.0) (1.1)
(2.9)

(0.8)
20
2

(1.97)
50
(3.15)
ø 80

117 (4.6)
3

171 (6.7)
237 (9.3)
1)
1) 4 8
5

68 (2.7)

120 (4.7)
1
72 (2.8)

(1.44)
36.5
123 (4.8)

5) 7
min. 90 (3.6)
105 (4.1)
ø 50 ... 60
(1.97 ... 2.36)
1 Process connection:
- ½-14 NPT,
- connection shank G½B or
- oval flange
2 Blanking plug
3 Electrical connection:
- screwed gland M20x1,5 4),
- screwed gland ½-14 NPT or
- PROFIBUS-Stecker M12 3) 4)
4 Terminal side
5 Electronic side, digital display (longer overall
length for cover with window) 1) Allow approx. 20 mm (0.79 inch) thread length in addition
6 Protective cover over keys 2) Minimum distance for rotating
7 Mounting bracket (option) 3) Not with type of protection "Explosion-proof enclosure"
8 Screw cover - safety bracket (only for type of protection 4) Not with type of protection "FM + CSA"
"Explosion-proof enclosure", not shown in the drawing) 5) Minimum distance for rotating

SITRANS P pressure transmitters, DS III PA and FF series for gauge pressure, dimensions in mm (inch)

2/84 Siemens FI 01 · 2010 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series for gauge and absolute pressure,
with front-flush diaphragm

■ Technical specifications
SITRANS P, DS III series for gauge and absolute pressure, with front-flush diaphragm
HART PROFIBUS PA or FOUNDATION Fieldbus
Input gauge pressure, with front-flush
diaphragm
Measured variable Gauge pressure, flush-mounted
2
Spans (infinitely adjustable) or Span Max. perm. test pres- Nominal measuring Max. perm. test pres-
nominal measuring range and sure range sure
max. permissible test pressure
0.01 ... 1 bar g 6 bar g 1 bar g 6 bar g
(0.15 ... 14.5 psi g) (87 psi g) (14.5 psi g) (87 psi g)
0.04 ... 4 bar g 10 bar g 4 bar g 10 bar g
(0.58 ... 58 psi g) (145 psi g) (58 psi g) (145 psi g)
0.16 ... 16 bar g 32 bar g 16 bar g 32 bar g
(2.23 ... 232 psi g) (464 psi g) (232 psi g) (464 psi g)
0.6 ... 63 bar g 100 bar g 63 bar g 100 bar g
(9.14 ... 914 psi g) (1450 psi g) (914 psi g) (1450 psi g)
Lower measuring limit -100 mbar g (-1.45 psi g)
Upper measuring limit 100% of max. span 100% of nominal measuring range
Input absolute pressure, with front-flush
diaphragm
Measured variable Absolute pressure, flush-mounted
Spans (infinitely adjustable) or Span Max. perm. test pres- Nominal measuring Max. perm. test pres-
nominal measuring range and sure range sure
max. permissible test pressure
43 ... 1300 mbar a 10 bar a 1300 mbar a 10 bar a
(0.62 ... 18.9 psi a) (145 psi a) (18.9 psi a) (145 psi a)
0,16 ... 5 bar a 30 bar a 5 bar a 30 bar a
(2.32 ... 72,5 psi a) (435 psi a) (72,5 psi a) (435 psi a)
1 ... 30 bar a 100 bar a 30 bar a 100 bar a
(14.5 ... 435 psi a) (1450 psi a) (435 psi a) (1450 psi a)
Depending on the process connection, the span Depending on the process connection, the nomi-
may differ from these values nal measuring range may differ from these values
Lower measuring limit 0 bar a (0 psi a)
Upper measuring limit 100% of max. span 100% of nominal measuring range
Output
Output signal 4 ... 20 mA Digital PROFIBUS PA or FOUNDATION Fieldbus
signal
• Lower limit (infinitely adjustable) 3.55 mA, factory preset to 3.84 mA -
• Upper limit (infinitely adjustable) 23 mA, factory preset to 20.5 mA or optionally -
set to 22.0 mA
Load
• Without HART communication RB ≤ (UH - 10.5 V)/0.023 A in Ω, -
UH : Power supply in V
• With HART communication RB = 230 ... 500 Ω (SIMATIC PDM) or -
RB = 230 ... 1100 Ω (HART Communicator)
Physical bus - IEC 61158-2
Protection against polarity reversal Protected against short-circuit and polarity reversal. Each connection against the other with max.
supply voltage.
Accuracy To EN 60770-1
Reference conditions Increasing characteristic, start-of-scale value 0 bar, stainless steel seal diaphragm, silicone oil fill-
(All error data refer always refer to the set span) ing, room temperature 25 °C (77 °F)) r: Span ratio (r = max. span/set span)
Error in measurement and fixed-point setting
(including hysteresis and repeatability)
Gauge pressure, Absolute pressure, Gauge pressure, Absolute pressure,
front-flushed front-flushed front-flushed front-flushed
• Linear characteristic ≤ 0,075 % ≤ 0,2 %
- r ≤ 10 ≤ (0.0029 ⋅ r + 0.071) % ≤ 0,2 %
- 10 < r ≤ 30 ≤ (0.0045 ⋅ r + 0.071) % ≤ 0,4 %
- 30 < r ≤ 100 ≤ (0.005 ⋅ r + 0.05) % -
Long-term drift (temperature change ±30 °C ≤ (0.25 ⋅ r) % every 5 ≤ 0.25 % every 5 years
(±54 °F)) years

Siemens FI 01 · 2010 2/85 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series for gauge and absolute pressure,
with front-flush diaphragm
SITRANS P, DS III series for gauge and absolute pressure, with front-flush diaphragm
HART PROFIBUS PA or FOUNDATION Fieldbus
Influence of ambient temperature
• at -10 ... +60 °C (14 ... 140 °F) ≤ (0.1 ⋅ r + 0.2) % ≤ (0,2 ⋅ r + 0,3) % ≤ 0,3 % ≤ 0,5 %

2 • at -40 ... -10 °C and +60 ... +85 °C

(-40 ... +14 °F and 140 ... 185 °F)
≤ (0.1 ⋅ r + 0.15) %/10 K ≤ (0,2 ⋅ r + 0,3) %/10 K ≤ 0.25 %/10 K ≤ 0,5 %/10 K

Influence of mounting position 0.1 mbar g (0.00145 psi g) per 10° inclination
Measured Value Resolution - 3 ⋅ 10-5 of nominal measuring range
Influence of the medium temperature (only with
front-flush diaphragm)
• Temperature difference between medium tem- 3 mbar/10 K (0.04 psi/10 K)
perature and ambient temperature
Rated operating conditions
Installation conditions
Ambient temperature Observe the temperature class in areas subject to explosion hazard.
• Measuring cell with silicone oil -40 ... +85 °C (-40 ... +185 °F)
• Measuring cell with Neobee oil -10 ... +85 °C (14 ... +185 °F)
(with front-flush diaphragm)
• Measuring cell with inert liquid -20 ... +85 °C (-4 ... +185 °F)
(not with front-flush diaphragm)
• Digital display -30 ... +85 °C (-22 ... +185 °F)
• Storage temperature -50 ... +85 °C (-58 ... +185 °F)
(with Neobee: -20 ... +85 °C (-4 ... +185 °F)
Climatic class
Condensation Permissible
Degree of protection to EN 60529 IP65, IP68, NEMA X, enclosure cleaning, resistant to lyes, steam to 150° C (302 °F)
Electromagnetic compatibility
• Emitted interference and interference immunity To EN 61326 and NAMUR NE 21
Medium conditions
Process temperature
• Measuring cell with silicone oil -40 ... +100 °C (-40 ... +212 °F)
• Measuring cell with silicone oil (with front-flush -40 ... +150 °C (-40 ... +302 °F)
diaphragm)
• Measuring cell with Neobee oil (with front-flush -40 ... +150 °C (-40 ... +302 °F)
diaphragm)
• Measuring cell with silicone oil, with tempera- -40 ... +200 °C (-40 ... +392 °F)
ture isolator (only with front-flush diaphragm)
• Measuring cell with inert liquid -20 ... +100 °C (-4 ... +212 °F)
• Measuring cell with high temperature oil -10 ... +250 °C (14 ... +482 °F)
Design
Weight (without options) ≈ 1.5 kg (≈ 3.3 lb)
Housing material Poor in copper die-cast aluminium, GD-AlSi12 or stainless steel precision casting, mat. No. 1.4408
Wetted parts materials Stainless steel, mat. No. 1.4404/316L
Measuring cell filling Silicone oil or inert filling liquid
Process connection • Flanges as per EN and ASME
• F&B and pharmaceutical flanges
Surface quality touched-by-media Ra values ≤ 0,8 µm (3.15·10-8 inch)/welded seamsRa ≤ 1,6 µm (6.4·10-8 inch)
(process connections according to 3A; Ravalues ≤ 0,8 µm (3.15·10-8 inch)/welded seams
Ra ≤ 0,8 µm (3.15·10-8 inch))

2/86 Siemens FI 01 · 2010 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series for gauge and absolute pressure,
with front-flush diaphragm
SITRANS P, DS III series for gauge and absolute pressure, with front-flush diaphragm
HART PROFIBUS PA or FOUNDATION Fieldbus
Power supply UH Supplied through bus
Terminal voltage on transmitter 10.5 ... 45 V DC -

2
10.5 ... 30 V DC in intrinsically-safe mode
Separate 24 V power supply necessary - No
Bus voltage
• Not Ex - 9 ...32 V
• With intrinsically-safe operation - 9 ...24 V
Current consumption
• Basic current (max.) - 12.5 mA
• Startup current ≤ basic current - Yes
• Max. current in event of fault - 15.5 mA
Fault disconnection electronics (FDE) available - Yes
Certificate and approvals
Classification according to pressure equipment For gases of fluid group 1 and liquids of fluid group 1; complies with requirements of Article 3,
directive (DRGL 97/23/EC) paragraph 3 (sound engineering practice)
Explosion protection
• Intrinsic safety "i" PTB 99 ATEX 2122
- Identification Ex II 1/2 G EEx ia/ib IIB/IIC T6
- Permissible ambient temperature -40 ... +85 °C (-40 ... +185 °F) temperature class T4;
-40 ... +70 °C (-40 ... +158 °F) temperature class T5;
-40 ... +60 °C (-40 ... +140 °F) temperature class T6
- Connection To certified intrinsically-safe circuits with maxi- FISCO supply unit:
mum values: Uo = 17.5 V, Io = 380 mA, Po = 5.32 W
Ui = 30 V, Ii = 100 mA, Linear barrier:
Pi = 750 mW; Ri = 300 Ω Uo = 24 V, Io = 250 mA, Po = 1.2 W
- Effective internal inductance/capacitance L i = 0.4 mH, Ci = 6 nF L i = 7 µH, Ci = 1.1 nF
• Explosion-proof "d" PTB 99 ATEX 1160
- Identification Ex II 1/2 G EEx d IIC T4/T6
- Permissible ambient temperature -40 ... +85 °C (-40 ... +185 °F) temperature class T4;
-40 ... +60 °C (-40 ... +140 °F) temperature class T6
- Connection To circuits with values: UH = 10.5 ... 45 V DC To circuits with values: UH = 9 ... 32 V DC
• Dust explosion protection for zone 20 PTB 01 ATEX 2055
- Identification Ex II 1 D IP65 T 120 °C
Ex II 1/2 D IP65 T 120 °C
- Permissible ambient temperature -40 ... +85 °C (-40 ... +185 °F)
- Max.surface temperature 120 °C (248 °F)
- Connection To certified intrinsically-safe circuits with maxi- FISCO supply unit:
mum values: Uo = 17.5 V, Io = 380 mA, Po = 5.32 W
Ui = 30 V, Ii = 100 mA, Linear barrier:
Pi = 750 mW, Ri = 300 Ω Uo = 24 V, Io = 250 mA, Po = 1.2 W
- Effective internal inductance/capacitance L i = 0.4 mH, Ci = 6 nF L i = 7 µH, Ci = 1.1 nF
• Dust explosion protection for zone 21/22 PTB 01 ATEX 2055
- Identification Ex II 2 D IP65 T 120 °C
- Connection To circuits with values: UH = 10.5 ... 45 V DC; To circuits with values: UH = 9 ... 32 V DC;
Pmax = 1.2 W Pmax = 1.2 W
• Type of protection "n" (zone 2) TÜV 01 ATEX 1696 X Planned
- Identification Ex II 3 G EEx nA L IIC T4/T5/T6 -
• Explosion protection to FM Certificate of Compliance 3008490
- Identification (XP/DIP) or (IS); (NI) CL I, DIV 1, GP ABCD T4...T6; CL II, DIV 1, GP EFG; CL III; CL I, ZN 0/1 AEx ia IIC T4...T6; CL I,
DIV 2, GP ABCD T4...T6; CL II, DIV 2, GP FG; CL III
• Explosion protection to CSA Certificate of Compliance 1153651
- Identification (XP/DIP) or (IS) CL I, DIV 1, GP ABCD T4...T6; CL II, DIV 1, GP EFG; CL III; Ex ia IIC T4...T6; CL I, DIV 2, GP ABCD
T4...T6; CL II, DIV 2, GP FG; CL III

Hygiene version
In the case of SITRANS P DSIII with 7MF413x front-flush diaphragm, selected connections comply with the requirements of EHEDG.

Siemens FI 01 · 2010 2/87 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series for gauge and absolute pressure,
with front-flush diaphragm
HART communication Communication FOUNDATION
Fieldbus
HART communication 230 ... 1100 Ω
Function blocks 3 function blocks analog input,
Protocol HART Version 5.x 1 function block PID
Software for computer SIMATIC PDM • Analog input

2 PROFIBUS PA communication
Simultaneous communication with 4
- Adaptation to customer-
specific process variables
Yes, linearly rising or falling char-
acteristic
master class 2 (max.) - Electrical damping T63 , 0 ... 100 s
The address can be set using Configuration tool or local opera- adjustable
tion (standard setting address - Simulation function Output/input (can be locked within
126) the device with a bridge)
Cyclic data usage - Failure mode Can be parameterized (last good
• Output byte 5 (one measuring value) or value, substitute value, incorrect
10 (two measuring values) value)
• Input byte 0, 1, or 2 (register operating mode - Limit monitoring Yes, one upper and lower warning
and reset function for metering) limit and one alarm limit respec-
tively
Internal preprocessing
- Square-rooted characteristic Yes
Device profile PROFIBUS PA Profile for Process for flow measurement
Control Devices Version 3.0,
Class B • PID Standard FF function block
Function blocks 2 • Physical block 1 Resource block
• Analog input Transducer blocks 1 transducer block Pressure with
calibration, 1 transducer block
- Adaptation to customer- Yes, linearly rising or falling char- LCD
specific process variables acteristic
• Pressure transducer block
- Electrical damping T63 , 0 ... 100 s
adjustable - Can be calibrated by applying Yes
two pressures
- Simulation function Input /Output
- Monitoring of sensor limits Yes
- Failure mode Can be parameterized (last good
value, substitute value, incorrect - Simulation function: Measured Constant value or over para-
value) pressure value, sensor temper- meterizable ramp function
ature and electronics tempera-
- Limit monitoring Yes, one upper and lower warning ture
limit and one alarm limit respec-
tively
• Register (totalizer) Can be reset, preset, optional
direction of counting, simulation
function of register output
- Failure mode Can be parameterized (summation
with last good value, continuous
summation, summation with incor-
rect value)
- Limit monitoring One upper and lower warning limit
and one alarm limit respectively
• Physical block 1
Transducer blocks 2
• Pressure transducer block
- Can be calibrated by applying Yes
two pressures
- Monitoring of sensor limits Yes
- Specification of a container Max. 30 nodes
characteristic with
- Square-rooted characteristic Yes
for flow measurement
- Gradual volume suppression Parameterizable
and implementation point of
square-root extraction
- Simulation function for mea- Constant value or over para-
sured pressure value and sen- meterizable ramp function
sor temperature

2/88 Siemens FI 01 · 2010 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series for gauge and absolute pressure,
with front-flush diaphragm

Selection and Ordering data Order No.

SITRANS P pressure transmitters for gauge F) 7 M F 4 1 3 3 -
and absolute pressure, front-flush membrane,
77777 - 7777
series DS III HART
Measuring cell filling Measuring cell cleaning
Silicone oil
Inert liquid
Standard
Grease-free
1
3
2
FDA compliant fill fluid
• Neobee oil Standard 4
Span
0.01 ... 1 bar g (0.15 ... 14.5 psi g) B
0.04 ... 4 bar g (0.58 ... 58 psi g) C
0.16 ... 16 bar g (2.32 ... 232 psi g) D
0.63 ... 63 bar g (9.14 ... 914 psi g) E
13 ... 1300 mbar a1) (0.19 ... 18.9 psi a)1) S
0.05 ... 5 bar a1) (0.7 ... 72.5 psi a)1) T
3 ... 30 bar a1) (43.5 ... 435 psi a)1) U
Wetted parts materials
Seal diaphragm Connection shank
Stainless steel Stainless steel A
Hastelloy2) Stainless steel B
Process connection
• Flange version with Order code M.., N.., R.. or Q.. 7
Non-wetted parts materials
• Housing made of die-cast aluminium 0
• Housing stainless steel precision casting 3
Version
• Standard version 1
• International version, English label inscriptions, 2
documentation in 5 languages on CD
Explosion protection
• Without A
• With ATEX, Type of protection:
- "Intrinsic safety (EEx ia)" B
- "Explosion-proof (EEx d)"3) D
- "Intrinsic safety, explosion-proof enclosure and R
dust explosion protection (EEx ia + EEx d +
Zone 1D/2D)"4)
• With FM + CSA, Type of protection:
- "Intrinsic safety and explosion-proof NC
(is + xp)"3) (available soon)
Electrical connection / cable entry
• Inner thread M20x1.5 B
• Female thread ½-14 NPT C
• M12 connectors (metal)5) F
Display
• Without indicator 0
• Without visible digital indicator (digital indicator } 1
hidden, setting: mA)
• With visible digital indication, setting: mA 6
• With customer-specific digital indication (setting 7
as specified, Order code "Y21" or "Y22"
required)
Power supply units see "SITRANS I power supply units and isolation
amplifiers".
Included in delivery of the device:
• Brief instructions (Leporello)
• CD-ROM with detailed documentation
1)
Not with temperature decoupler P00 and P10, not for process connections
R02, R04, R10 and R11, and can only be ordered in conjunction with sili-
cone oil.
2)
Only for flanges with option M.., N.. and Q..
3)
Without cable gland, with blanking plug.
4) With enclosed cable gland EEx ia and blanking plug.
5)
Cannot be used together with the following types of protection:
"Explosion-proof" and "Intrinsic safety and explosion-proof"
F) Subject to export regulations AL: 9I999, ECCN: N.

Siemens FI 01 · 2010 2/89 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series for gauge and absolute pressure,
with front-flush diaphragm

Selection and Ordering data Order No. 1)

Not with temperature decoupler P00 and P10, not for process connections
SITRANS P pressure transmitters for gauge R01, R02, R04, R10 and R11, and can only be ordered in conjunction with
silicone oil.
pressure, front-flush membrane 2)
Only for flanges with option M.., N.. and Q..
DS III PA series (PROFIBUS PA) F) 7 M F 4 1 3 4 - 3) Without cable gland, with blanking plug.
4)
With enclosed cable gland EEx ia and blanking plug.
2
DS III FF series (FOUNDATION Fieldbus) F) 7 M F 4 1 3 5 - 5)
Cannot be used together with the following types of protection:
77777 - 7777 "Explosion-proof" and "Intrinsic safety and explosion-proof"
6)
M12 delivered without cable socket.
Measuring cell filling Measuring cell
cleaning F) Subject to export regulations AL: 9I999, ECCN: N.
Silicone oil Standard 1
Inert liquid Grease-free 3
FDA compliant fill fluid
• Neobee oil Standard 4
Nominal measuring range
1 bar g (14.5 psi g) B
4 bar g (58 psi g) C
16 bar g (232 psi g) D
63 bar g (914 psi g) E
1300 mbar a1) (18.9 psi a)1) S
5 bar a1) (72.5 psi a)1) T
30 bar a1) (435 psi a)1) U
Wetted parts materials
Seal diaphragm Connection shank
Stainless steel Stainless steel A
Hastelloy2) Stainless steel B
Process connection
• Flange version with Order code M.., N.., R.. or 7
Q..
Non-wetted parts materials
• Housing made of die-cast aluminium 0
• Housing stainless steel precision casting 3
Version
• Standard version 1
• International version, English label inscriptions, 2
documentation in 5 languages on CD
Explosion protection
• Without A
• With ATEX, Type of protection:
- "Intrinsic safety (EEx ia)" B
- "Explosion-proof (EEx d)"3) D
- "Intrinsic safety, explosion-proof enclosure and R
dust explosion protection (EEx ia + EEx d +
Zone 1D/2D)"4)
• With FM + CSA, Type of protection:
- "Intrinsic safety and explosion-proof NC
(is + xp)"3) (available soon)
Electrical connection / cable entry
• Screwed gland M20x1.5 B
• Screwed gland ½-14 NPT C
• Han 7D plug (plastic housing) incl. mating D
connector5)
• M12 connectors (metal) 6) F
Display
• Without indicator 0
• Without visible digital indicator (digital indicator } 1
hidden, setting: mA)
• With visible digital display 6
• With customer-specific digital display (setting as 7
specified, Order code "Y21" or required)
Included in delivery of the device:
• Brief instructions (Leporello)
• CD-ROM with detailed documentation

2/90 Siemens FI 01 · 2010 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series for gauge and absolute pressure,
with front-flush diaphragm
Selection and Ordering data Order code Selection and Ordering data Order code
Further designs HART PA FF Further designs HART PA FF
Add "-Z" to Order No. and specify Order Add "-Z" to Order No. and specify Order
code. code.
9 9 9 Temperature decoupler up to 200 °C4) 9 9 9
2
Cable sockets for M12 connectors (metal) A50 P00
for version with front-flush diaphragm
Rating plate inscription
(instead of German) Temperature decoupler up to 250 °C P10 9 9 9
Measuring cell filling: High-temperature oil,
• English B11 9 9 9 only in conjunction with measuring cell filling
• French B12 9 9 9 silicone oil
• Spanish B13 9 9 9 Bio-Control (Neumo) sanitary connection
• Italian B14 9 9 9 certified to EHEDG
English rating plate B21 9 9 9 • DN 50, PN 16 Q53 9 9 9
Pressure units in inH2O or psi • DN 65, PN 16 Q54 9 9 9
Sanitary process connection to DRD
Quality inspection certificate (Factory cali- C11 9 9 9
bration) to IEC 60770-2 • 65 mm, PN 40 M32 9 9 9

Acceptance test certificate C12 9 9 9 SMS socket with union nut

To EN 10204-3.1 • 2“ M67 9 9 9
• 2½“ M68 9 9 9
Factory certificate C14 9 9 9 • 3“ M69 9 9 9
To EN 10204-2.2 SMS threaded socket
"PROFIsafe" certificate and protocol C21 9 • 2“ M73 9 9 9
• 2½“ M74 9 9 9
Flanges to EN 1092-1
• 3“ M75 9 9 9
• DN 25, PN 401) M11 9 9 9
• DN 25, PN 1001) M21 9 9 9 IDF socket with union nut ISO 2853
• DN 40, PN 40 M13 9 9 9 • 2“ M82 9 9 9
• DN 40, PN 100 M23 9 9 9 • 2½“ M83 9 9 9
• DN 50, PN 16 M04 9 9 9 • 3“ M84 9 9 9
• DN 50, PN 40 M14 9 9 9 IDF threaded socket ISO 2853
• DN 80, PN 16 M06 9 9 9 • 2“ M92 9 9 9
• DN 80, PN 40 M16 9 9 9 • 2½“ M93 9 9 9
Flanges to ASME B16.5 • 3“ M94 9 9 9
• Stainless steel flange 1" class 1501) M40 9 9 9 Sanitary process connection to
• Stainless steel flange 1½" class 150 M41 9 9 9 NEUMO Bio-Connect screw connection
• Stainless steel flange 2" class 150 M42 9 9 9 certified to EHEDG
• Stainless steel flange 3" class 150 M43 9 9 9 • DN 50, PN 16 Q05 9 9 9
• Stainless steel flange 4" class 150 M44 9 9 9 • DN 65, PN 16 Q06 9 9 9
• Stainless steel flange 1" class 3001) M45 9 9 9 • DN 80, PN 16 Q07 9 9 9
• Stainless steel flange 1½" class 300 M46 9 9 9 • DN 100, PN 16 Q08 9 9 9
• Stainless steel flange 2" class 300 M47 9 9 9 • DN 2“, PN 16 Q13 9 9 9
• Stainless steel flange 3" class 300 M48 9 9 9 • DN 2½“, PN 16 Q14 9 9 9
• Stainless steel flange 4" class 300 M49 9 9 9 • DN 3“, PN 16 Q15 9 9 9
• DN 4“, PN 16 Q16 9 9 9
Threaded connection acc. to DIN 3852-2,
Sanitary process connection to
Form A, Thread to ISO 228
NEUMO Bio-Connect flange connection
• G ¾“, flush-mounted2) R01 9 9 9 certified to EHEDG
• G 1“, flush-mounted2) R02 9 9 9 • DN 50, PN 16 Q23 9 9 9
• G 2“, flush-mounted2) R04 9 9 9 • DN 65, PN 16 Q24 9 9 9
Tank connection3) • DN 80, PN 16 Q25 9 9 9
Sealing is included in delivery • DN 100, PN 16 Q26 9 9 9
• TG 52/50, PN 40 R10 9 9 9 • DN 2“, PN 16 Q31 9 9 9
• TG 52/150, PN 40 R11 9 9 9 • DN 2½“, PN 16 Q32 9 9 9
Sanitary process connection according • DN 3“, PN 16 Q33 9 9 9
DIN 11851 (Dairy connection) • DN 4“, PN 16 Q34 9 9 9
• DN 50, PN 25 N04 9 9 9 Sanitary process connection to
• DN 80, PN 25 N06 9 9 9 NEUMO Bio-Connect clamp connection
Tri-Clamp connection according certified to EHEDG
DIN 32676/ISO 2852 • DN 50, PN 16 Q39 9 9 9
• DN 50/2“, PN 16 N14 9 9 9 • DN 65, PN 10 Q40 9 9 9
• DN 65/3“, PN 10 N15 9 9 9 • DN 80, PN 10 Q41 9 9 9
• DN 100, PN 10 Q42 9 9 9
Varivent connection
certified to EHEDG • DN 2½“, PN 16 Q48 9 9 9
• Type N = 68 for Varivent housing N28 9 9 9 • DN 3“, PN 10 Q49 9 9 9
DN 40 ... 125 and 1½" ... 6", PN 40 • DN 4“, PN 10 Q50 9 9 9

Siemens FI 01 · 2010 2/91 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series for gauge and absolute pressure,
with front-flush diaphragm
Selection and Ordering data Order code Selection and Ordering data Order code
Further designs HART PA FF Additional data HART PA FF
Add "-Z" to Order No. and specify Order Add "-Z" to Order No. and specify Order
code. code.
9
2
Sanitary process connection to NEUMO Measuring range to be set Y01
Connect S flange connection Specify in plain text (max. 5 digits):
certified to EHEDG Y01: ... up to ... mbar, bar, kPa, MPa, psi
• DN 50, PN 16 Q63 9 9 9
Measuring point number (TAG No.) Y15 9 9 9
• DN 65, PN 10 Q64 9 9 9
Max. 16 characters, specify in plain text:
• DN 80, PN 10 Q65 9 9 9 Y15: ...........................................
• DN 100, PN 10 Q66 9 9 9
• DN 2“, PN 16 Q72 9 9 9 Measuring point text Y16 9 9 9
• DN 2½“, PN 10 Q73 9 9 9 Max. 27 characters, specify in plain text:
Y16: ...........................................
• DN 3“, PN 10 Q74 9 9 9
• DN 4“, PN 10 Q75 9 9 9 Entry of HART address (TAG) Y17 9
Aseptic threaded socket to DIN 11864-1 Max. 8 characters, specify in plain text:
Form A Y17: ...........................................
• DN 50, PN 25 N33 9 9 9 Setting of pressure indicator in pressure Y21 9 9 9
• DN 65, PN 25 N34 9 9 9 units
• DN 80, PN 25 N35 9 9 9 Specify in plain text (standard setting: mA):
• DN 100, PN 25 N36 9 9 9 Y21: mbar, bar, kPa, MPa, psi, ...
Note:
Aseptic flange with notch to DIN 11864-2 The following pressure units can be selected:
Form A bar, mbar, mm H2O*), inH2O*), ftH2O*),
• DN 50, PN 16 N43 9 9 9 mmHG, inHG, psi, Pa, kPa, MPa, g/cm2,
• DN 65, PN 16 N44 9 9 9 kg/cm2, Torr, ATM oder %
• DN 80, PN 16 N45 9 9 9 *) ref. temperature 20 °C
• DN 100, PN 16 N46 9 9 9 Preset bus address Y25 9
Aseptic flange with groove to DIN 11864-2 (possible between 1 and 126)
Form A Specify in plain text:
• DN 50, PN 16 N43 + 9 9 9 Y25: .....................
P11 Only "Y01" and "Y21" can be factory preset
• DN 65, PN 16 N44 + 9 9 9
P11 9 = available
• DN 80, PN 16 N45 + 9 9 9 Ordering example
P11 Item line: 7MF4133-1DB20-1AB7-Z
• DN 100, PN 16 N46 + 9 9 9 B line: A22 + Y01 + Y21
P11 C line: Y01: 1 ... 10 bar (14.5 ... 145 psi)
Aseptic clamp with groove to DIN 11864-3 C line: Y21: bar (psi)
Form A
• DN 50, PN 25 N53 9 9 9
• DN 65, PN 25 N54 9 9 9
• DN 80, PN 16 N55 9 9 9
• DN 100, PN 16 N56 9 9 9
1)
Special Viton seal included in delivery.
2)
Lower measuring limit -100 mbar g (1.45 psi g).
3)
The weldable socket can be ordered under accessories
4)
The maximum temperatures of the medium depend on the respective cell
fillings.

2/92 Siemens FI 01 · 2010 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series for gauge and absolute pressure,
with front-flush diaphragm

■ Dimensional drawings
15
(0.6) 144 (5.67) 100 (3.94)
approx. 30 (1.18)
51

2
74 (2.9) 6 2
(2.0)

(0.8)
20

H1 = approx. 130 (5.12)

(1.97)
50
(3.15)
Ø 80

3
41)

Space for rotation

7
51) 90 (3)2)

of housing

H2
1

1 Process connection: see flange tables

2 Blanking plug
3 Electrical connection:
- screwed gland M20x1,5
- screwed gland ½-14 NPT
4 Terminal side
5 Electronics side, digital display (longer overall length for cover with window) 1) Allow approx. 20 mm (0.79 inch)
6 Protective cover over keys thread length in addition
7 Screw cover safety bracket ( only for explosion-proof enclosure, 2) 92 mm (3.6 inch) for minimum distance
not shown in the drawing) to permit rotation with indicator

SITRANS P pressure transmitters, DS III series for gauge pressure, with front-flush diaphragm, dimensions in mm (inch)

The diagram shows a SITRANS P DS III with an example of a NuG and pharmaceutical connections
flange. In this drawing the height is subdivided into H1 and H2.
Connections to DIN
H1 = Height of the SITRANS DS III up to a defined cross-section
DIN 11851 (Dairy connection)
H2 = Height of the flange up to this defined cross-section DN PN ∅D H2
Only the height H2 is indicated in the dimensions of the flanges. 50 25 92 mm (3.6“) Approx.
52 mm (2“)
H2

80 25 127 mm (5.0“)
Flanges to EN and ASME
D
Flanges to EN
EN 1092-1
Tri-Clamp according DIN 32676
DN PN ∅D H2
DN PN ∅D H2
25 40 115 mm (4.5“) Approx.
50 16 64 mm (2.5“) Approx.
H2

25 100 140 mm (5.5“) 52 mm (2“)

52 mm (2“)
H2

40 40 150 mm (5.9“) 65 16 91 mm (3.6“)

D
40 100 170 mm (6.7“)
50 16 165 mm (6.5“)
D
50 40 165 mm (6.5“)
80 16 200 mm (7.9“)
80 40 200 mm (7.9“)
Other connections
Flanges to ASME Varivent connection
DN PN ∅D H2
ASME B16.5
40 ... 125 40 84 mm Approx.
DN class ∅D H2 (3.3“) 52 mm (2“)
H2

1“ 150 110 mm (4.3“) Approx.

H2

1“ 300 125 mm (4.9“) 52 mm (2“)

1½“ 150 130 mm (5.1“) D
D
1½“ 300 155 mm (6.1“)
2“ 150 150 mm (5.9“)
2“ 300 165 mm (6.5“)
3“ 150 190 mm (7.5“)
3“ 300 210 mm (8.1“)
4“ 150 230 mm (9.1“)
4“ 300 255 mm (10.0“)

Siemens FI 01 · 2010 2/93 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series for gauge and absolute pressure,
with front-flush diaphragm
Bio-Control connection Sanitary connection to NEUMO Bio-Connect S
flange connection
DN PN ∅D H2
DN PN ∅D H2
50 16 90 mm (3.5“) Approx.
52 mm (2“) 50 16 125 mm (4.9“) Approx.
H2

65 16 120 mm (4.7“)

H2
52 mm (2“)

2
65 10 145 mm (5.7“)
D 80 10 155 mm (6.1“)
D
100 10 180 mm (7.1“)
Sanitary process connection to DRD 2“ 16 125 mm (4.9“)
DN PN ∅D H2 2½“ 10 135 mm (5.3“)
50 40 105 mm (4.1“) Approx. 3“ 10 145 mm (5.7“)
H2

52 mm (2“) 4“ 10 180 mm (7.1“)

D Thread connection G¾“, G1“ and G2“ to DIN 3852

DN PN ∅D H2
¾“ 63 37 mm (1.5“) Approx.
Sanitary process screw connection to NEUMO Bio-Connect 45 mm

H2
(1.8“)
DN PN ∅D H2
1“ 63 48 mm (1.9“) Approx.
50 16 82 mm (3.2“) Approx. D 47 mm
52 mm (2“) (1.9“)
65 16 105 mm (4.1“)
H2

2“ 63 78 mm (3.1“) Approx.
80 16 115 mm (4.5“)
52 mm (2“)
100 16 145 mm (5.7“)
D 2“ 16 82 mm (3.2“) Tank connection TG52/50 and TG52/150
2½“ 16 105 mm (4.1“) DN PN ∅D H2
3“ 16 105 mm (4.1“) 25 40 63 mm (2.5“) Approx.
63 mm
H2

4“ 16 145 mm (5.7“) (2.5“)

Sanitary connection to NEUMO Bio-Connect 25 40 63 mm (2.5“) Approx.

flange connection 170 mm
D (6.7“)
DN PN ∅D H2
50 16 110 mm (4.3“) Approx. SMS socket with union nut
H2

52 mm (2“)
65 16 140 mm (5.5“) DN PN ∅D H2
D
80 16 150 mm (5.9“) 2“ 25 84 mm (3.3“) Approx.
H2

100 16 175 mm (6.9“) 52 mm

2½“ 25 100 mm (3.9“) (2.1“)
2“ 16 100 mm (3.9“) 3“ 25 114 mm (4.5“)
2½“ 16 110 mm (4.3“) D
3“ 16 140 mm (5.5“)
4“ 16 175 mm (6.9“) SMS threaded socket

Sanitary connection to NEUMO Bio-Connect DN PN ∅D H2

clamp connection 2“ 25 70 x 1/6 mm Approx.
∅D 52 mm
H2

DN PN H2 2½“ 25 85 x 1/6 mm (2.1“)

50 16 77,4 mm (3.0“) Approx. 3“ 25 98 x 1/6 mm
52 mm (2“) D
65 10 90,9 mm (3.6“)
H2

80 10 106 mm (4.2“)
IDF socket with union nut
100 10 119 mm (4.7“)
D
DN PN ∅D H2
2“ 16 64 mm (2.5“)
2“ 25 77 mm (3“) Approx.
2½“ 16 77,4 mm (3.0“) 52 mm
H2

2½“ 25 91 mm (3.6“) (2.1“)

3“ 10 90,9 mm (3.6“)
3“ 25 106 mm (4.2“)
4“ 10 119 mm (4.7“)
D

2/94 Siemens FI 01 · 2010 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series for gauge and absolute pressure,
with front-flush diaphragm

IDF threaded socket

DN PN ∅D H2
2“ 25 64 mm (2.5“) Approx.
52 mm
H2

2½“ 25 77.5 mm (3.1“) (2.1“)

3“ 25 91 mm (3.6“)
2
D

Aseptic threaded socket to DIN 11864-1 Form A

DN PN ∅D H2
50 25 78 x 1/6“ Approx.
52 mm
65 25 95 x 1/6“ (2.1“)
H2

80 25 110 x ¼“
100 25 130 x ¼“

Aseptic flange with notch to DIN 11864-2 Form A

DN PN ∅D H2
50 16 94 Approx.
H2

52 mm
65 16 113 (2.1“)
80 16 133
D
100 16 159

Aseptic flange with groove to DIN 11864-2 Form A

DN PN ∅D H2
50 16 94 Approx.
H2

52 mm
65 16 113 (2.1“)
80 16 133
D
100 16 159

Aseptic clamp with groove to DIN 11864-3 Form A

DN PN ∅D H2
50 25 77,5 Approx.
52 mm
65 25 91
H2

(2.1“)
80 16 106
100 16 130
D

Siemens FI 01 · 2010 2/95 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series for absolute pressure
(from gauge pressure series)

■ Technical specifications
SITRANS P, DS III series for absolute pressure (from the gauge pressure series)
HART PROFIBUS PA or FOUNDATION Fieldbus
Input
2 Measured variable Absolute pressure
Spans (infinitely adjustable) or Span Max. perm. test Nominal measuring Max. perm. test
nominal measuring range and pressure range pressure
max. permissible test pressure
8.3 ... 250 mbar a 6 bar a 250 mbar a 6 bar a
(0.12 ... 3.6 psi a) (87 psi a) (3.6 psi a) (87 psi a)
43 ... 1300 mbar a 10 bar a 1300 mbar a 10 bar a
(0.62 ... 18.9 psi a) (145 psi a) (18.9 psi a) (145 psi a)
160 ... 5000 mbar a 30 bar a 5 bar a 30 bar a
(2.32 ... 72.5 psi a) (435 psi a) (72.5 psi a) (435 psi a)
1 ... 30 bar a 100 bar a 30 bar a 100 bar a
(14.5 ... 435 psi a) (1450 psi a) (435 psi a) (1450 psi a)
Lower measuring limit
• Measuring cell with silicone oil filling 0 mbar a (0 psi a)
Upper measuring limit 100% of max. span
Output
Output signal 4 ... 20 mA Digital PROFIBUS PA or FOUNDATION Fieldbus
signal
• Lower limit (infinitely adjustable) 3.55 mA, factory preset to 3.84 mA -
• Upper limit (infinitely adjustable) 23 mA, factory preset to 20.5 mA or optionally set -
to 22.0 mA
Load
• Without HART communication RB ≤ (UH - 10.5 V)/0.023 A in Ω, -
UH : Power supply in V
• With HART communication RB = 230 ... 500 Ω (SIMATIC PDM) or -
RB = 230 ... 1100 Ω (HART Communicator)
Physical bus - IEC 61158-2
Protection against polarity reversal Protected against short-circuit and polarity reversal. Each connection against the other with max.
supply voltage.

Accuracy To EN 60770-1
Reference conditions Increasing characteristic, start-of-scale value 0 bar, stainless steel seal diaphragm, silicone oil filling,
(All error data refer always refer to the set room temperature 25 °C (77 °F)) r: Span ratio (r = max. span / set span)
span)
Error in measurement and fixed-point setting
(including hysteresis and repeatability)
• Linear characteristic ≤ 0.1 %
- r ≤ 10 ≤ 0.1 %
- 10 < r ≤ 30 ≤ 0.2 %
Long-term drift (temperature change ±30 °C ≤ (0.1 ⋅ r) %/year ≤ 0.1 %/year
(±54 °F))
Influence of ambient temperature
• at -10 ... +60 °C (14 ... 140 °F) ≤ (0.1 ⋅ r +0.2) % ≤ 0,3 %
• at -40 ... -10 °C and +60 ... +85 °C ≤ (0.1 ⋅ r + 0.15) %/10 K ≤ 0.25 %/10 K
(-40 ... +14 °F and 140 ... 185 °F)
Measured Value Resolution - 3 ⋅ 10-5 of nominal measuring range

2/96 Siemens FI 01 · 2010 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series for absolute pressure
(from gauge pressure series)
SITRANS P, DS III series for absolute pressure (from the gauge pressure series)
HART PROFIBUS PA or FOUNDATION Fieldbus
Rated operating conditions
Degree of protection (to EN 60529) IP65
Process temperature
• Measuring cell with silicone oil filling -40 ... +100 °C (-40 ... +212 °F)
2
• Measuring cell with inert filling liquid -20 ... +100 °C (-4 ... +212 °F)
• In conjunction with dust explosion protec- -20 ... +60 °C (-4 ... +140 °F)
tion
Ambient conditions
• Ambient temperature
- Digital indicators -30 ... +85 °C (-22 ... +185 °F)
• Storage temperature -50 ... +85 °C (-58 ... +185 °F)
• Climatic class
- Condensation Permissible
• Electromagnetic compatibility
- Emitted interference and interference im- To EN 61326 and NAMUR NE 21
munity
Design
Weight (without options) ≈ 1.5 kg (≈ 3.3 lb)
Housing material Poor in copper die-cast aluminium, GD-AlSi12 or stainless steel precision casting, mat. No. 1.4408
Wetted parts materials
• Connection shank Stainless steel, mat. No. 1.4404/316L or Hastelloy C4, mat. No. 2.4610
• Oval flange Stainless steel, mat. No. 1.4404/316L
• Seal diaphragm Stainless steel, mat. No. 1.4404/316L or Hastelloy C276, mat. No. 2.4819
Measuring cell filling Silicone oil or inert filling liquid (max. 160 bar a (2320 psi a) with oxygen measurement)
Process connection Connection shank G½B to DIN EN 837-1, female thread ½ -14 NPT or oval flange (PN 160
(MWP 2320 psi a)) to DIN 19213 with mounting thread M10 or 7/16-20 UNF to EN 61518
Material of the mounting bracket
• Steel Sheet steel, Mat. No. 1.0330, chrome-plated
• Stainless steel Stainless steel, Mat. No. 1.4301 (SS304)
Power supply UH Supplied through bus
Terminal voltage on transmitter 10.5 ... 45 V DC -
10.5 ... 30 V DC in intrinsically-safe mode
Separate 24 V power supply necessary - No
Bus voltage
• Not Ex - 9 ... 32 V
• With intrinsically-safe operation - 9 ... 24 V
Current consumption
• Basic current (max.) - 12.5 mA
• Startup current ≤ basic current - Yes
• Max. current in event of fault - 15.5 mA
Fault disconnection electronics (FDE) avail- - Yes
able

Siemens FI 01 · 2010 2/97 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series for absolute pressure
(from gauge pressure series)
SITRANS P, DS III series for absolute pressure (from the gauge pressure series)
HART PROFIBUS PA or FOUNDATION Fieldbus
Certificate and approvals
Classification according to pressure equip- For gases of fluid group 1 and liquids of fluid group 1; complies with requirements of Article 3, para-

2
ment directive (DRGL 97/23/EC) graph 3 (sound engineering practice)
Explosion protection
• Intrinsic safety "i" PTB 99 ATEX 2122
- Identification Ex II 1/2 G EEx ia/ib IIB/IIC T6
- Permissible ambient temperature -40 ... +85 °C (-40 ... +185 °F) temperature class T4;
-40 ... +70 °C (-40 ... +158 °F) temperature class T5;
-40 ... +60 °C (-40 ... +140 °F) temperature class T6
- Connection To certified intrinsically-safe circuits with maxi- FISCO supply unit:
mum values: Uo = 17.5 V, Io = 380 mA, Po = 5.32 W
Ui = 30 V, Ii = 100 mA, Linear barrier:
Pi = 750 mW; Ri = 300 Ω Uo = 24 V, Io = 250 mA, Po = 1.2 W
- Effective internal inductance/capacitance L i = 0.4 mH, Ci = 6 nF L i = 7 µH, Ci = 1.1 nF
• Explosion-proof "d" PTB 99 ATEX 1160
- Identification Ex II 1/2 G EEx d IIC T4/T6
- Permissible ambient temperature -40 ... +85 °C (-40 ... +185 °F) temperature class T4;
-40 ... +60 °C (-40 ... +140 °F) temperature class T6
- Connection To circuits with values: UH = 10.5 ... 45 V DC To circuits with values: UH = 9 ... 32 V DC
• Dust explosion protection for zone 20 PTB 01 ATEX 2055
- Identification Ex II 1 D IP65 T 120 °C
Ex II 1/2 D IP65 T 120 °C
- Permissible ambient temperature -40 ... +85 °C (-40 ... +185 °F)
- Max.surface temperature 120 °C (248 °F)
- Connection To certified intrinsically-safe circuits with maxi- FISCO supply unit:
mum values: Uo = 17.5 V, Io = 380 mA, Po = 5.32 W
Ui = 30 V, Ii = 100 mA, Linear barrier:
Pi = 750 mW, Ri = 300 Ω Uo = 24 V, Io = 250 mA, Po = 1.2 W
- Effective internal inductance/capacitance L i = 0.4 mH, Ci = 6 nF L i = 7 µH, Ci = 1.1 nF
• Dust explosion protection for zone 21/22 PTB 01 ATEX 2055
- Identification Ex II 2 D IP65 T 120 °C
- Connection To circuits with values: UH = 10.5 ... 45 V DC; To circuits with values: UH = 9 ... 32 V DC;
Pmax = 1.2 W Pmax = 1.2 W
• Type of protection "n" (zone 2) TÜV 01 ATEX 1696 X Planned
- Identification Ex II 3 G EEx nA L IIC T4/T5/T6 -
• Explosion protection to FM Certificate of Compliance 3008490
- Identification (XP/DIP) or (IS); (NI) CL I, DIV 1, GP ABCD T4...T6; CL II, DIV 1, GP EFG; CL III; CL I, ZN 0/1 AEx ia IIC T4...T6; CL I,
DIV 2, GP ABCD T4...T6; CL II, DIV 2, GP FG; CL III
• Explosion protection to CSA Certificate of Compliance 1153651
- Identification (XP/DIP) or (IS) CL I, DIV 1, GP ABCD T4...T6; CL II, DIV 1, GP EFG; CL III; Ex ia IIC T4...T6; CL I, DIV 2, GP ABCD
T4...T6; CL II, DIV 2, GP FG; CL III

2/98 Siemens FI 01 · 2010 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series for absolute pressure
(from gauge pressure series)
HART communication Communication FOUNDATION
Fieldbus
HART communication 230 ... 1100 Ω
Function blocks 3 function blocks analog input,
Protocol HART Version 5.x 1 function block PID
Software for computer SIMATIC PDM • Analog input
PROFIBUS PA communication
Simultaneous communication with 4
- Adaptation to customer-
specific process variables
Yes, linearly rising or falling
characteristic
2
master class 2 (max.) - Electrical damping T63 , 0 ... 100 s
The address can be set using Configuration tool or local opera- adjustable
tion (standard setting address - Simulation function Output/input (can be locked within
126) the device with a bridge)
Cyclic data usage - Failure mode Can be parameterized (last good
• Output byte 5 (one measuring value) or value, substitute value, incorrect
10 (two measuring values) value)
• Input byte 0, 1, or 2 (register operating mode - Limit monitoring Yes, one upper and lower warning
and reset function for metering) limit and one alarm limit respec-
tively
Internal preprocessing
- Square-rooted characteristic Yes
Device profile PROFIBUS PA Profile for Process for flow measurement
Control Devices Version 3.0,
Class B • PID Standard FF function block
Function blocks 2 • Physical block 1 Resource block
• Analog input Transducer blocks 1 transducer block Pressure with
calibration, 1 transducer block
- Adaptation to customer- Yes, linearly rising or falling char- LCD
specific process variables acteristic
• Pressure transducer block
- Electrical damping T63 , 0 ... 100 s
adjustable - Can be calibrated by applying Yes
two pressures
- Simulation function Input /Output
- Monitoring of sensor limits Yes
- Failure mode Can be parameterized (last good
value, substitute value, incorrect - Simulation function: Measured Constant value or over para-
value) pressure value, sensor temper- meterizable ramp function
ature and electronics tempera-
- Limit monitoring Yes, one upper and lower warning ture
limit and one alarm limit respec-
tively
• Register (totalizer) Can be reset, preset, optional
direction of counting, simulation
function of register output
- Failure mode Can be parameterized (summation
with last good value, continuous
summation, summation with incor-
rect value)
- Limit monitoring One upper and lower warning limit
and one alarm limit respectively
• Physical block 1
Transducer blocks 2
• Pressure transducer block
- Can be calibrated by applying Yes
two pressures
- Monitoring of sensor limits Yes
- Specification of a container Max. 30 nodes
characteristic with
- Square-rooted characteristic Yes
for flow measurement
- Gradual volume suppression Parameterizable
and implementation point of
square-root extraction
- Simulation function for mea- Constant value or over para-
sured pressure value and sen- meterizable ramp function
sor temperature

Siemens FI 01 · 2010 2/99 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series for absolute pressure
(from gauge pressure series)
Selection and Ordering data Order No. Selection and Ordering data Order No.
SITRANS P pressure transmitters for absolute F) 7 M F 4 2 3 3 - SITRANS P pressure transmitters for absolute F) 7 M F 4 2 3 3 -
pressure, from the pressure series DS III HART pressure, from the pressure series DS III HART
77777 - 7777 77777 - 7777
Measuring cell filling Measuring cell Display

2
cleaning • Without indicator 0
Silicone oil Standard 1 • Without visible digital indicator (digital indicator } 1
Inert liquid1) Grease-free 3 hidden, setting: mA)
Span • With visible digital indicator 6
8.3 ... 250 mbar a (0.12 ... 3.63 psi a) D • With customer-specific digital indicator (setting 7
as specified, Order code "Y21" or „Y22“ re-
43 ... 1300 mbar a (0.62 ... 18.9 psi a) F quired)
0.16 ... 5 bar a (2.32 ... 72.5 psi a) G
1 ... 30 bar a (14.5 ... 435 psi a) H Power supply units see "SITRANS I power supply units and isolation
amplifiers".
Wetted parts materials
Factory-mounting of shut-off valves and valve manifolds see page
Seal diaphragm Process connection 2/147.
Stainless steel Stainless steel F) A Included in delivery of the device:
Hastelloy Stainless steel F) B • Brief instructions (Leporello)
Hastelloy Hastelloy F) C • CD-ROM with detailed documentation
Version for diaphragm seal2)3)4) Y 1) For oxygen application, add Order code E10.
2)
Process connection Version 7MF4233-1DY... only up to max. span 200 mbar a (2.9 psi a)
3)
• Connection shank G½B to EN 837-1 0 When the manufacture’s certificate M (calibration certificate) has to be
ordered for transmitters with diaphragm seals, it is recommended only to
• Female thread ½-14 NPT 1
order this certificate exclusively with the diaphragm seals. The measuring
• Oval flange made of stainless steel accuracy of the total combination is certified here.
- Mounting thread 7/16-20 UNF to EN 61518 2 4)
Whe the acceptance test certificate 3.1 for transmitters with direct-con-
- Mounting thread M10 to DIN 19213 3 nected diaphragm seals is ordered, this certificate must also be ordered
with the corresponding seals.
• Male thread M20 x 1,5 5 5)
Not together with Electrical connection „Screwed gland Pg 13.5“ and
• Male thread ½-14 NPT 6 „Han7D plug“.
6)
Non-wetted parts materials Without cable gland, with blanking plug.
7)
• Housing made of die-cast aluminium 0 With enclosed cable gland EEx ia and blanking plug.
8)
Not together with types of protection "Explosion-proof" and "Ex nA",
• Housing stainless steel precision casting5) 3 "Intrinsic safety" and "Explosion-proof".
9)
Version M12 delivered without cable socket.
• Standard version 1 F) Subject to export regulations AL: 9I999, ECCN: N.
• International version, English label inscriptions, 2
documentation in 5 languages on CD
Explosion protection
• Without A
• With ATEX, Type of protection:
- "Intrinsic safety (EEx ia)" B
- "Explosion-proof (EEx d)"6) D
- "Intrinsic safety and explosion-proof enclosure P
(EEx ia + EEx d)"7)
- "Ex nA/nL (zone 2)" E
- "Intrinsic safety, explosion-proof enclosure and R
dust explosion protection (EEx ia + EEx d +
Zone 1D/2D)"7)
• With FM + CSA, Type of protection:
- "Intrinsic safety and explosion-proof NC
(is + xp)"6)
Electrical connection / cable entry
• Screwed gland Pg 13.58) A
• Screwed gland M20x1.5 B
• Screwed gland ½-14 NPT C
• Han 7D plug (plastic housing) incl. mating D
connector8)
• Plug M12 (metal)9) F

2/100 Siemens FI 01 · 2010 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series for absolute pressure
(from gauge pressure series)
Selection and Ordering data Order No. Selection and Ordering data Order No.
SITRANS P pressure transmitters for absolute SITRANS P pressure transmitters for absolute
pressure (from the gauge pressure series) pressure (from the gauge pressure series)
DS III PA series (PROFIBUS PA) F) 7 M F 4 2 3 4 - DS III PA series (PROFIBUS PA) F) 7 M F 4 2 3 4 -

2
DS III FF series (FOUNDATION Fieldbus) F) 7 M F 4 2 3 5 - DS III FF series (FOUNDATION Fieldbus) F) 7 M F 4 2 3 5 -
77777 - 7777 77777 - 7777
Measuring cell filling Measuring cell Display
cleaning • Without indicator 0
Silicone oil Standard 1 • Without visible digital indicator (digital indicator } 1
Inert liquid1) Grease-free 3 hidden, setting: mA)
Nominal measuring range • With visible digital indicator 6
250 mbar a (3.63 psi a) D • With customer-specific digital indicator (setting 7
as specified, Order code "Y21" or „Y22“
1300 mbar a (18.9 psi a) F required)
5 bar a (72.5 psi a) G
30 bar a (435 psi a) H Factory-mounting of shut-off valves and valve manifolds see page
2/147.
Wetted parts materials Included in delivery of the device:
Seal diaphragm Process connection • Brief instructions (Leporello)
Stainless steel Stainless steel F) A • CD-ROM with detailed documentation
Hastelloy Stainless steel F) B 1)
For oxygen application, add Order code E10.
Hastelloy Hastelloy F) C 2)
Version 7MF4233-1DY... only up to max. span 200 mbar a (2.9 psi a).
Version as diaphragm seal2)3)4) Y 3)
When the manufacture’s certificate M (calibration certificate) has to be
ordered for transmitters with diaphragm seals, it is recommended only to
Process connection order this certificate exclusively with the diaphragm seals. The measuring
• Connection shank G½B to EN 837-1 0 accuracy of the total combination is certified here.
4)
• Female thread ½-14 NPT 1 Whe the acceptance test certificate 3.1 for transmitters with direct-con-
• Oval flange made of stainless steel nected diaphragm seals is ordered, this certificate must also be ordered
with the corresponding seals.
- Mounting thread 7/16-20 UNF to EN 61518 2 5) Without cable gland, with blanking plug.
- Mounting thread M10 to DIN 19213 3 6)
With enclosed cable gland EEx ia and blanking plug.
• Male thread M20 x 1,5 5 7)
M12 delivered without cable socket.
• Male thread ½-14 NPT 6
F) Subject to export regulations AL: 9I999, ECCN: N.
Non-wetted parts materials
• Housing made of die-cast aluminium 0
• Housing stainless steel precision casting 3
Version
• Standard version 1
• International version, English label inscriptions, 2
documentation in 5 languages on CD
Explosion protection
• Without A
• With ATEX, Type of protection:
- "Intrinsic safety (EEx ia)" B
- "Explosion-proof (EEx d)"5) D
- "Intrinsic safety and explosion-proof enclosure P
(EEx ia + EEx d)"6)
- "Ex nA/nL (zone 2)" E
- "Intrinsic safety, explosion-proof enclosure and R
dust explosion protection (EEx ia + EEx d +
Zone 1D/2D)"6) (not for DS III FF)
• With FM + CSA, Type of protection:
- "Intrinsic safety and explosion-proof NC
(is + xp)"5)
Electrical connection / cable entry
• Screwed gland M20x1.5 B
• Screwed gland ½-14 NPT C
• Plug M12 incl. mating connector7) F

Siemens FI 01 · 2010 2/101 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series for absolute pressure
(from gauge pressure series)
Selection and Ordering data Order code Selection and Ordering data Order code
Further designs HART PA FF Additional data HART PA FF
Add "-Z" to Order No. and specify Order Add "-Z" to Order No. and specify Order
code. code.
9
2
Pressure transmitter with mounting Measuring range to be set Y01
bracket made of: Specify in plain text (max. 5 digits):
• Steel A01 9 9 9 Y01: ... up to ... mbar, bar, kPa, MPa, psi
• Stainless steel A02 9 9 9 Measuring point number (TAG No.) Y15 9 9 9
Plug Max. 16 characters, specify in plain text:
• Han 7D (metal, gray) A30 9 Y15: ...........................................
• Han 8U (instead of Han 7D) A31 9 Measuring point text Y16 9 9 9
Cable sockets for M12 connectors (metal) A50 9 9 9 Max. 27 characters, specify in plain text:
Y16: ...........................................
Rating plate inscription
(instead of German) Entry of HART address (TAG) Y17 9
• English B11 9 9 9 Max. 8 characters, specify in plain text:
Y17: ...........................................
• French B12 9 9 9
• Spanish B13 9 9 9 Setting of pressure indication in pressure Y21 9 9 9
• Italian B14 9 9 9 units
Specify in plain text (standard setting: mA):
English rating plate B21 9 9 9 Y21: mbar, bar, kPa, MPa, psi, ...
Pressure units in inH2O or psi Note:
Quality inspection certificate ( C11 9 9 9 The following pressure units can be selected:
Factory calibration) to IEC 60770-2 1) bar, mbar, mm H2O*), inH2O*), ftH2O*),
mmHG, inHG, psi, Pa, kPa, MPa, g/cm2,
Acceptance test certificate2) C12 9 9 9 kg/cm2, Torr, ATM oder %
To EN 10204-3.1 *) ref. temperature 20 °C
Factory certificate C14 9 9 9 Setting of pressure indication in Y22 + 9 9 9
To EN 10204-2.2 non-pressure units3) Y01
"Functional Safety (SIL)" certificate C20 9 Specify in plain text:
Y22: ..... up to ..... l/min, m3/h, m, USgpm, ...
"PROFIsafe" certificate and protocol C21 9 (specification of measuring range in pressure
units "Y01" is essential, unit with
Setting of upper limit of output signal to D05 9 max. 5 characters)
22.0 mA
Preset bus address Y25 9
Manufacturer's declaration acc. to NACE D07 9 9 9
(possible between 1 and 126)
Type of protection IP68 D12 9 9 9 Specify in plain text:
(only for M20x1.5 and ½-14 NPT) Y25: .....................
Digital indicator alongside the input keys D27 9 9 9 Only "Y01", "Y21", "Y22", "Y25" and "D05" can be factory preset
(only together with the devices 7MF4233- 9 = available
....0-.A.6 or -.A.7-Z, Y21 or Y22 + Y01).
1)
Supplied with oval flange D37 9 9 9 When the manufacture’s certificate M (calibration certificate) has to be
ordered for transmitters with diaphragm seals, it is recommended only to
(1 item), PTFE packing and screws in thread order this certificate exclusively with the diaphragm seals. The measuring
of oval flange accuracy of the total combination is certified here.
2)
Use in or on zone 1D/2D E01 9 9 9 Whe the acceptance test certificate 3.1 for transmitters with direct-con-
(only together with type of protection "Intrinsic nected diaphragm seals is ordered, this certificate must also be ordered
with the corresponding seals.
safety (EEx ia)") 3)
Preset values can only be modified over SIMATIC PDM.
Use on zone 0 E02 9 9 9
(only together with type of protection "Intrinsic
safety (EEx ia)")
Oxygen application E10 9 9 9
(max. 120 bar a (1740 psi a) at 60 °C (140 °F)
with oxygen measurement and inert liquid)
Explosion-proof "Intrinsic safety" to E25 9 9 9
INMETRO (Brazil)
(only for transmitter 7MF4...-.....-.B..)
Explosion-proof "Intrinsic safety" to NEPSI E55 9 9 9
(China)
(only for transmitter 7MF4...-.....-.B..)
Explosion protection "Explosion-proof" to E56 9 9 9
NEPSI (China)
(only for transmitter 7MF4...-.....-.D..)
Explosion-proof "Zone 2" to NEPSI (China) E57 9 9 9
(only for transmitter 7MF4...-.....-.E..)

2/102 Siemens FI 01 · 2010 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series for absolute pressure
(from gauge pressure series)

■ Dimensional drawings
15 55
144 (5.67) (2.2) approx. 30 (1.2)
4) 100 (3.94)
(0.6)
approx. 96 (3.78)
2
74 51 28 6 2
(2.0) (1.1)
(2.9)

(0.8)
20

(1.97)
50
(3.15)
ø 80

117 (4.6)
3 3

171 (6.7)
237 (9.3)
1)
1) 4 8
5

68 (2.7)

120 (4.7)
1
72 (2.8)

(1,44)
36,5
123 (4.8)

5) 7
min. 90 (3.6)

ø 50 ... 60 105 (4.1)

(1.97 ... 2.36)
1 Process connection:
- ½-14 NPT,
- onnection shankG½B or
- oval flange
2 Blanking plug
3 Electrical connection:
- screwed gland Pg 13,5 (adapter)2) 3),
- screwed gland M20x1,5 3),
- screwed gland ½-14 NPT or
- Han 7D/ Han 8U 2) 3) plug
4 Terminal side
5 Electronic side, digital display (longer overall
length for cover with window) 1) Allow approx. 20 mm (0.79 inch) thread length to permit unscrewing
6 Protective cover over keys 2) Not with type of protection "Explosion-proof enclosure"
7 Mounting bracket (option) 3) Not with type of protection "FM + CSA" [is + xp]"
8 Screw cover - safety bracket (only for type of protection 4) For Pg 13,5 with adapter approx. 45 mm (1.77 inch)
"Explosion-proof enclosure", not shown in the drawing) 5) Minimum distance for rotating

SITRANS P pressure transmitters, DS III HART series for absolute pressure, from the pressure series, dimensions in mm (inch)

Siemens FI 01 · 2010 2/103 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series for absolute pressure
(from gauge pressure series)

15 55
144 (5.67) (2.2) approx. 30 (1.2)
4) 100 (3.94)
(0.6)
74 51 28 6 2
(2.0) (1.1)
(2.9)

(0.8)
20
2

(1.97)
50
(3.15)
ø 80

117 (4.6)
3

171 (6.7)
237 (9.3)
1)
1) 4 8
5

68 (2.7)

120 (4.7)
1
72 (2.8)

(1.44)
36.5
123 (4.8)

5) 7
min. 90 (3.6)
105 (4.1)
ø 50 ... 60
(1.97 ... 2.36)
1 Process connection:
- ½-14 NPT,
- connection shank G½B or
- oval flange
2 Blanking plug
3 Electrical connection:
- screwed gland M20x1,5 4),
- screwed gland ½-14 NPT or
- PROFIBUS-Stecker M12 3) 4)
4 Terminal side
5 Electronic side, digital display (longer overall
length for cover with window) 1) Allow approx. 20 mm (0.79 inch) thread length in addition
6 Protective cover over keys 2) Minimum distance for rotating
7 Mounting bracket (option) 3) Not with type of protection "Explosion-proof enclosure"
8 Screw cover - safety bracket (only for type of protection 4) Not with type of protection "FM + CSA"
"Explosion-proof enclosure", not shown in the drawing) 5) Minimum distance for rotating

SITRANS P pressure transmitters, DS III PA and FF series for absolute pressure, from the pressure series, dimensions in mm (inch)

2/104 Siemens FI 01 · 2010 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series for absolute pressure
(from differential pressure series)

■ Technical specifications
SITRANS P, DS III series for absolute pressure (from differential pressure series)
HART PROFIBUS PA or FOUNDATION Fieldbus
Input
Measured variable Absolute pressure pressure 2
Spans (infinitely adjustable) or Span Maximum working pres- Nominal measuring Maximum working pres-
nominal measuring range and sure range sure
max. permissible working pressure
8.3 ... 250 mbar a 32 bar a 250 mbar a 32 bar a
(0.12 ... 3.6 psi a) (464 psi a) (3.6 psi a) (464 psi a)
43 ... 1300 mbar a 32 bar a 1300 bar a 32 bar a
(0.62 ... 18.9 psi a) (464 psi a) (18.9 psi a) (464 psi a)
160 ... 5000 mbar a 32 bar a 5 bar a 32 bar a
(2.32 ... 72.5 psi a) (464 psi a) (72.5 psi a) (464 psi a)
1 ... 30 bar a 160 bar a 30 bar a 160 bar a
(14.5 ... 435 psi a) (2320 psi a) (435 psi a) (2320 psi a)
5.3 ... 100 bar a 160 bar a 100 bar a 160 bar a
(77 ... 1450 psi a) (2320 psi a) (1450 psi a) (2320 psi a)
(for connection thread (for connection thread
7
M10 and /16-20 UNF in M10 and 7/16-20 UNF in
the process flanges) the process flanges)
Lower measuring limit
• Measuring cell with silicone oil filling 0 mbar a (0 psi a)
Upper measuring limit 100% of max. span
Output
Output signal 4 ... 20 mA Digital PROFIBUS PA or FOUNDATION Fieldbus
signal
• Lower limit (infinitely adjustable) 3.55 mA, factory preset to 3.84 mA -
• Upper limit (infinitely adjustable) 23 mA, factory preset to 20.5 mA or optionally set -
to 22.0 mA
Load
• Without HART communication RB ≤ (UH - 10.5 V)/0.023 A in Ω, -
UH : Power supply in V
• With HART communication RB = 230 ... 500 Ω (SIMATIC PDM) or -
RB = 230 ... 1100 Ω (HART Communicator)
Physical bus - IEC 61158-2
Protection against polarity reversal Protected against short-circuit and polarity reversal. Each connection against the other with max.
supply voltage.
Accuracy To EN 60770-1
Reference conditions Increasing characteristic, start-of-scale value 0 bar, stainless steel seal diaphragm, silicone oil filling,
(All error data refer always refer to the set room temperature 25 °C (77 °F)) r: Span ratio (r = max. span / set span)
span)
Error in measurement and fixed-point setting
(including hysteresis and repeatability)
• Linear characteristic ≤ 0.1 %
- r ≤ 10 ≤ 0.1 %
- 10 < r ≤ 30 ≤ 0.2 %
Long-term drift (temperature change ± 30 °C ≤ (0.1 ⋅ r) %/year ≤ 0.1 %/year
(± 54 °F))
Influence of ambient temperature
• at -10 ... +60 °C (14 ... 140 °F) ≤ (0.1 ⋅ r +0.2) % ≤ 0.3 %
• at -40 ... -10 °C and +60 ... +85 °C ≤ (0.1 ⋅ r + 0.15) %/10 K ≤ 0.25 %/10 K
(-40 ... +14 °F and 140 ... 185 °F)
Measured Value Resolution - 3 ⋅ 10-5 of nominal measuring range

Siemens FI 01 · 2010 2/105 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series for absolute pressure
(from differential pressure series)
SITRANS P, DS III series for absolute pressure (from differential pressure series)
HART PROFIBUS PA or FOUNDATION Fieldbus
Rated operating conditions
Degree of protection (to EN 60529) IP65

2 Process temperature
• Measuring cell with silicone oil filling -40 ... +100 °C (-40 ... +212 °F)
• Measuring cell with inert filling liquid -20 ... +100 °C (-4 ... +212 °F)
• In conjunction with dust explosion protec- -20 ... +60 °C (-4 ... +140 °F)
tion
Ambient conditions
• Ambient temperature
- Digital indicators -30 ... +85 °C (-22 ... +185 °F)
• Storage temperature -50 ... +85 °C (-58 ... +185 °F)
• Climatic class
- Condensation Permissible
• Electromagnetic compatibility
- Emitted interference and interference im- To EN 61326 and NAMUR NE 21
munity
Design
Weight (without options) ≈ 4.5 kg (≈ 9.9 lb)
Housing material Poor in copper die-cast aluminium, GD-AlSi12 or stainless steel precision casting, mat. No. 1.4408
Wetted parts materials
• Seal diaphragm Stainless steel, mat. No. 1.4404/316L or Hastelloy C276, mat. No. 2.4819, Monel, mat. No. 2.4360,
tantalum or gold
• Process flanges and sealing screw Stainless steel, mat. No. 1.4408, Hastelloy C4, mat. No. 2.4610 or Monel, mat. No. 2.4360
• O-Ring FPM (Viton) or optionally: PTFE, FEP, FEPM and NBR
Measuring cell filling Silicone oil or inert filling liquid (max. 160 bar (2320 psi a) with oxygen measurement)
Process connection ¼-18 NPT and flange connection to DIN 19213 with mounting thread M10 to DIN 19213 or
7
/16-20 UNF to EN 61518
Material of the mounting bracket
• Steel Sheet steel, Mat. No. 1.0330, chrome-plated
• Stainless steel Stainless steel, Mat. No. 1.4301 (SS304)
Power supply UH Supplied through bus
Terminal voltage on transmitter 10.5 ... 45 V DC -
10.5 ... 30 V DC in intrinsically-safe mode
Separate 24 V power supply necessary - No
Bus voltage
• Not Ex - 9 ... 32 V
• With intrinsically-safe operation - 9 ... 24 V
Current consumption
• Basic current (max.) - 12.5 mA
• Startup current ≤ basic current - Yes
• Max. current in event of fault - 15.5 mA
Fault disconnection electronics (FDE) avail- - Yes
able

2/106 Siemens FI 01 · 2010 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series for absolute pressure
(from differential pressure series)
SITRANS P, DS III series for absolute pressure (from differential pressure series)
HART PROFIBUS PA or FOUNDATION Fieldbus
Certificate and approvals
Classification according to pressure equip- For gases of fluid group 1 and liquids of fluid group 1; complies with requirements of Article 3, para-

2
ment directive (DRGL 97/23/EC) graph 3 (sound engineering practice)
Explosion protection
• Intrinsic safety "i" PTB 99 ATEX 2122
- Identification Ex II 1/2 G EEx ia/ib IIB/IIC T6
- Permissible ambient temperature -40 ... +85 °C (-40 ... +185 °F) temperature class T4;
-40 ... +70 °C (-40 ... +158 °F) temperature class T5;
-40 ... +60 °C (-40 ... +140 °F) temperature class T6
- Connection To certified intrinsically-safe circuits with maxi- FISCO supply unit:
mum values: Uo = 17.5 V, Io = 380 mA, Po = 5.32 W
Ui = 30 V, Ii = 100 mA, Linear barrier:
Pi = 750 mW; Ri = 300 Ω Uo = 24 V, Io = 250 mA, Po = 1.2 W
- Effective internal inductance/capacitance L i = 0.4 mH, Ci = 6 nF L i = 7 µH, Ci = 1.1 nF
• Explosion-proof "d" PTB 99 ATEX 1160
- Identification Ex II 1/2 G EEx d IIC T4/T6
- Permissible ambient temperature -40 ... +85 °C (-40 ... +185 °F) temperature class T4;
-40 ... +60 °C (-40 ... +140 °F) temperature class T6
- Connection To circuits with values: UH = 10.5 ... 45 V DC To circuits with values: UH = 9 ... 32 V DC
• Dust explosion protection for zone 20 PTB 01 ATEX 2055
- Identification Ex II 1 D IP65 T 120 °C
Ex II 1/2 D IP65 T 120 °C
- Permissible ambient temperature -40 ... +85 °C (-40 ... +185 °F)
- Max.surface temperature 120 °C (248 °F)
- Connection To certified intrinsically-safe circuits with maxi- FISCO supply unit:
mum values: Uo = 17.5 V, Io = 380 mA, Po = 5.32 W
Ui = 30 V, Ii = 100 mA, Linear barrier:
Pi = 750 mW, Ri = 300 Ω Uo = 24 V, Io = 250 mA, Po = 1.2 W
- Effective internal inductance/capacitance L i = 0.4 mH, Ci = 6 nF L i = 7 µH, Ci = 1.1 nF
• Dust explosion protection for zone 21/22 PTB 01 ATEX 2055
- Identification Ex II 2 D IP65 T 120 °C
- Connection To circuits with values: UH = 10.5 ... 45 V DC; To circuits with values: UH = 9 ... 32 V DC;
Pmax = 1.2 W Pmax = 1.2 W
• Type of protection "n" (zone 2) TÜV 01 ATEX 1696 X Planned
- Identification Ex II 3 G EEx nA L IIC T4/T5/T6 -
• Explosion protection to FM Certificate of Compliance 3008490
- Identification (XP/DIP) or (IS); (NI) CL I, DIV 1, GP ABCD T4...T6; CL II, DIV 1, GP EFG; CL III; CL I, ZN 0/1 AEx ia IIC T4...T6; CL I,
DIV 2, GP ABCD T4...T6; CL II, DIV 2, GP FG; CL III
• Explosion protection to CSA Certificate of Compliance 1153651
- Identification (XP/DIP) or (IS) CL I, DIV 1, GP ABCD T4...T6; CL II, DIV 1, GP EFG; CL III; Ex ia IIC T4...T6; CL I, DIV 2, GP ABCD
T4...T6; CL II, DIV 2, GP FG; CL III

Siemens FI 01 · 2010 2/107 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series for absolute pressure
(from differential pressure series)
HART communication Communication FOUNDATION
Fieldbus
HART communication 230 ... 1100 Ω
Function blocks 3 function blocks analog input,
Protocol HART Version 5.x 1 function block PID
Software for computer SIMATIC PDM • Analog input

2 PROFIBUS PA communication
Simultaneous communication with 4
- Adaptation to customer-
specific process variables
Yes, linearly rising or falling char-
acteristic
master class 2 (max.) - Electrical damping T63 , 0 ... 100 s
The address can be set using Configuration tool or local opera- adjustable
tion (standard setting address - Simulation function Output/input (can be locked within
126) the device with a bridge)
Cyclic data usage - Failure mode Can be parameterized (last good
• Output byte 5 (one measuring value) or value, substitute value, incorrect
10 (two measuring values) value)
• Input byte 0, 1, or 2 (register operating mode - Limit monitoring Yes, one upper and lower warning
and reset function for metering) limit and one alarm limit respec-
tively
Internal preprocessing
- Square-rooted characteristic Yes
Device profile PROFIBUS PA Profile for Process for flow measurement
Control Devices Version 3.0,
Class B • PID Standard FF function block
Function blocks 2 • Physical block 1 Resource block
• Analog input Transducer blocks 1 transducer block Pressure with
calibration, 1 transducer block
- Adaptation to customer- Yes, linearly rising or falling char- LCD
specific process variables acteristic
• Pressure transducer block
- Electrical damping T63 , 0 ... 100 s
adjustable - Can be calibrated by applying Yes
two pressures
- Simulation function Input /Output
- Monitoring of sensor limits Yes
- Failure mode Can be parameterized (last good
value, substitute value, incorrect - Simulation function: Measured Constant value or over para-
value) pressure value, sensor temper- meterizable ramp function
ature and electronics tempera-
- Limit monitoring Yes, one upper and lower warning ture
limit and one alarm limit respec-
tively
• Register (totalizer) Can be reset, preset, optional
direction of counting, simulation
function of register output
- Failure mode Can be parameterized (summation
with last good value, continuous
summation, summation with incor-
rect value)
- Limit monitoring One upper and lower warning limit
and one alarm limit respectively
• Physical block 1
Transducer blocks 2
• Pressure transducer block
- Can be calibrated by applying Yes
two pressures
- Monitoring of sensor limits Yes
- Specification of a container Max. 30 nodes
characteristic with
- Square-rooted characteristic Yes
for flow measurement
- Gradual volume suppression Parameterizable
and implementation point of
square-root extraction
- Simulation function for mea- Constant value or over para-
sured pressure value and sen- meterizable ramp function
sor temperature

2/108 Siemens FI 01 · 2010 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series for absolute pressure
(from differential pressure series)
Selection and Ordering data Order No. Selection and Ordering data Order No.
SITRANS P pressure transmitters for absolute F) 7 M F 4 3 3 3 - SITRANS P pressure transmitters for absolute F) 7 M F 4 3 3 3 -
pressure, from the differential pressure, pressure, from the differential pressure,
77777 - 7777 77777 - 7777
series DS III HART series DS III HART
Measuring cell filling Measuring cell Display

Silicone oil
cleaning
Standard 1
• Without indicator
• Without visible digital indicator (digital indicator }
0
1 2
Inert liquid1) Grease-free 3 hidden, setting: mA)
Span • With visible digital indicator 6
8.3 ... 250 mbar a (0.12 ... 3.63 psi a) E) D • With customer-specific digital indicator (setting 7
as specified, Order code "Y21" or „Y22“ re-
43 ... 1300 mbar a (0.62 ... 18.9 psi a) E) F quired)
0.16 ... 5 bar a (2.32 ... 72.5 psi a) E) G
1 ... 30 bar a (14.5 ... 435 psi a) H Power supply units see "SITRANS I power supply units and isolation
amplifiers".
5.3 ... 100 bar a (76.9 ... 1450 psi a) KE
Factory-mounting of shut-off valves and valve manifolds see page
Wetted parts materials 2/147.
Seal diaphragm Parts of measuring cell
Included in delivery of the device:
Stainless steel Stainless steel A • Brief instructions (Leporello)
Hastelloy Stainless steel B • CD-ROM with detailed documentation
Hastelloy Hastelloy C • Sealing plug(s) or sealing screw(s) for the process flanges(s)
Tantalum Tantalum E 1)
For oxygen applications, add Order code E10.
Monel Monel E) H 2)
Version 7MF4333-1DY... only up to max. span 200 mbar a (2.9 psi a).
3)
Gold Gold L When the manufacture’s certificate M (calibration certificate) has to be
Version for diaphragm seal2)3)4) Y ordered for transmitters with diaphragm seals, it is recommended only to
order this certificate exclusively with the diaphragm seals. The measuring
Process connection accuracy of the total combination is certified here.
4) Whe the acceptance test certificate 3.1 for transmitters with direct-con-
Female thread ¼-18 NPT with flange connection
• Sealing screw opposite process connection nected diaphragm seals is ordered, this certificate must also be ordered
with the corresponding seals.
- Mounting thread 7/16-20 UNF to EN 61518 2 5) Not for span "5.3 ... 100 bar a (76.9 ... 1450 psi a)". Position of the top vent
- Mounting thread M10 to DIN 19213 0 valve in the process flange (see dimensional drawing).
(only for replacement needs) 6)
Not together with Electrical connection „Screwed gland Pg 13.5“ and
• Vent on side of process flange5) „Han7D plug“.
7)
- Mounting thread 7/16-20 UNF to EN 61518 6 Without cable gland, with blanking plug
8)
- Mounting thread M10 to DIN 19213 4 With enclosed cable gland EEx ia and blanking plug
9)
(only for replacement needs) Not together with types of protection "Explosion-proof" and "Ex nA", "Intrin-
sic safety" and "Explosion-proof"..
Non-wetted parts materials 10)
M12 delivered without cable socket.
Process flange screws Electronics housing
E) Combinations of the versions marked with E) are subject to the export
Stainless steel Die-cast aluminium 2 regulations AL: 2B230, ECCN: N.
Stainless steel Stainless steel precision 3 F) Subject to export regulations AL: 9I999, ECCN: N.
casting6)
Version
• Standard version 1
• International version, English label inscriptions, 2
documentation in 5 languages on CD
Explosion protection
• Without A
• With ATEX, Type of protection:
- "Intrinsic safety (EEx ia)" B
- "Explosion-proof (EEx d)"7) D
- "Intrinsic safety and explosion-proof enclosure P
(EEx ia + EEx d)" 8)
- "Ex nA/nL (zone 2)" E
- "Intrinsic safety, explosion-proof enclosure and R
dust explosion protection (EEx ia + EEx d +
Zone 1D/2D)"8)
• With FM + CSA, Type of protection:
- "Intrinsic safety and explosion-proof NC
(is + xp)"7)
Electrical connection / cable entry
• Screwed gland Pg 13.59) A
• Screwed gland M20x1.5 B
• Screwed gland ½-14 NPT C
• Han 7D plug (plastic housing) incl. mating D
connector9)
• Plug M12 (metal)10) F

Siemens FI 01 · 2010 2/109 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series for absolute pressure
(from differential pressure series)
Selection and Ordering data Order No. Selection and Ordering data Order No.
SITRANS P pressure transmitters for absolute SITRANS P pressure transmitters for absolute
pressure (from the differential pressure series) pressure (from the differential pressure series)
DS III PA series (PROFIBUS PA) F) 7 M F 4 3 3 4 - DS III PA series (PROFIBUS PA) F) 7 M F 4 3 3 4 -

2
DS III FF series (FOUNDATION Fieldbus) F) 7 M F 4 3 3 5 - DS III FF series (FOUNDATION Fieldbus) F) 7 M F 4 3 3 5 -
77777 - 7777 77777 - 7777
Measuring cell filling Measuring cell Display
cleaning • Without indicator 0
Silicone oil Standard 1 • Without visible digital indicator (digital indicator } 1
Inert liquid1) Grease-free 3 hidden, setting: mA)
Nominal measuring range • With visible digital indicator 6
250 mbar a (3.63 psi a) E) D • With customer-specific digital indicator (setting 7
as specified, Order code "Y21" or required)
1300 mbar a (18.9 psi a) E) F
5 bar a (72.5 psi a) E) G Factory-mounting of shut-off valves and valve manifolds see page
30 bar a (435 psi a) H 2/147.
100 bar a (1450 psi a) KE Included in delivery of the device:
• Brief instructions (Leporello)
Wetted parts materials • CD-ROM with detailed documentation
Seal diaphragm Parts of measuring cell • Sealing plug(s) or sealing screw(s) for the process flanges(s)
Stainless steel Stainless steel A 1)
For oxygen application, add Order code E10.
Hastelloy Stainless steel B 2)
Version 7MF4334-1DY... only up to max. span 200 mbar a (2.9 psi a).
Hastelloy Hastelloy C 3)
When the manufacture’s certificate M (calibration certificate) has to be
Tantalum Tantalum E ordered for transmitters with diaphragm seals, it is recommended only to
order this certificate exclusively with the diaphragm seals. The measuring
Monel Monel E) H accuracy of the total combination is certified here.
Gold Gold L 4)
Whe the acceptance test certificate 3.1 for transmitters with direct-con-
Version as diaphragm seal2)3)4) Y nected diaphragm seals is ordered, this certificate must also be ordered
with the corresponding seals.
Process connection 5) Not for nominal measuring range 100 bar a (1450 psi a). Position of the top
Female thread ¼-18 NPT with flange connection vent valve in the process flange (see dimensional drawing).
• Sealing screw opposite process connection 6)
Without cable gland, with blanking plug
7)
- Mounting thread 7/16-20 UNF to EN 61518 With enclosed cable gland EEx ia and blanking plug
2 8)
M12 delivered without cable socket.
- Mounting thread M10 to DIN 19213 0
(only for replacement needs) E) Combinations of the versions marked with E) are subject to the export
• Vent on side of process flange5) regulations AL: 2B230, ECCN: N.
F) Subject to export regulations AL: 9I999, ECCN: N.
- Mounting thread 7/16-20 UNF to EN 61518 6
- Mounting thread M10 to DIN 19213 4
(only for replacement needs)
Non-wetted parts materials
Process flange screws Electronics housing
Stainless steel Die-cast aluminium 2
Stainless steel Stainless steel precision 3
casting
Version
• Standard version 1
• International version, English label inscriptions, 2
documentation in 5 languages on CD
Explosion protection
• Without A
• With ATEX, Type of protection:
- "Intrinsic safety (EEx ia)" B
- "Explosion-proof (EEx d)"6) D
- "Intrinsic safety and explosion-proof enclosure P
(EEx ia + EEx d)"7)
- "Ex nA/nL (zone 2)" E
- "Intrinsic safety, explosion-proof enclosure and R
dust explosion protection (EEx ia + EEx d +
Zone 1D/2D)"7) (not for DS III FF)
• With FM + CSA, Type of protection:
- "Intrinsic safety and explosion-proof NC
(is + xp)"6)
Electrical connection / cable entry
• Screwed gland M20x1.5 B
• Screwed gland ½-14 NPT C
• M12 Connector (metall)8) F

2/110 Siemens FI 01 · 2010 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series for absolute pressure
(from differential pressure series)
Selection and Ordering data Order code Selection and Ordering data Order code
Further designs HART PA FF Further designs HART PA FF
Add "-Z" to Order No. and specify Order Add "-Z" to Order No. and specify Order
code. code.
9 9 9
2
Pressure transmitter with mounting Explosion-proof "Intrinsic safety" to NEPSI E55
bracket made of: (China)
• Steel A01 9 9 9 (only for transmitter 7MF4...-.....-.B..)
• Stainless steel A02 9 9 9 Explosion protection "Explosion-proof" to E56 9 9 9
O-rings for process flanges NEPSI (China)
(instead of FPM (Viton)) (only for transmitter 7MF4...-.....-.D..)
• PTFE (Teflon) A20 9 9 9 Explosion-proof "Zone 2" to NEPSI (China) E57 9 9 9
• FEP (with silicone core, approved for food) A21 9 9 9 (only for transmitter 7MF4...-.....-.E..)
• FFPM (Kalrez, compound 4079) A22 9 9 9
• NBR (Buna N) A23 9 9 9 Interchanging of process connection side H01 9 9 9
Plug Vent on side for gas measurements H02 9 9 9
• Han 7D (metal, gray) A30 9 Process flange
• Han 8U (instead of Han 7D) A31 9 • Hastelloy K01 9 9 9
Sealing screws A40 9 9 9 • Monel K02 9 9 9
¼-18 NPT, with vent valve in material of pro- • Stainless steel with PVDF insert K04 9 9 9
cess flanges max. PN 10 (MWP 145 psi),
max. temperature of medium 90 °C (194 °F)
Cable sockets for M12 connectors (metal) A50 9 9 9
For ½-14 NPT inner process connection on
Rating plate inscription the side in the middle of the process flange,
(instead of German) vent valve not possible
• English B11 9 9 9 Additional data
• French B12 9 9 9
Add "-Z" to Order No. and specify Order
• Spanish B13 9 9 9
code.
• Italian B14 9 9 9
Measuring range to be set Y01 9
English rating plate B21 9 9 9
Specify in plain text (max. 5 digits):
Pressure units in inH2O or psi Y01: ... up to ... mbar, bar, kPa, MPa, psi
Quality inspection certificate (Factory cali- C11 9 9 9 Measuring point number (TAG No.) Y15 9 9 9
bration) to IEC 60770-2 1)
Max. 16 characters, specify in plain text:
Acceptance test certificate2) C12 9 9 9 Y15: ...........................................
To EN 10204-3.1 Measuring point text Y16 9 9 9
Factory certificate C14 9 9 9 Max. 27 characters, specify in plain text:
To EN 10204-2.2 Y16: ...........................................

"Functional Safety (SIL)" certificate C20 9 Entry of HART address (TAG) Y17 9
Max. 8 characters, specify in plain text:
"PROFIsafe" certificate and protocol C21 9 Y17: ...........................................
Setting of upper limit of output signal to D05 9 Setting of pressure indication in pressure Y21 9 9 9
22.0 mA units
Manufacturer's declaration acc. to NACE D07 9 9 9 Specify in plain text (standard setting: mA):
(only together with seal diaphragm made of Y21: mbar, bar, kPa, MPa, psi, ...
Hastelloy and stainless steel) Note:
The following pressure units can be selected:
Type of protection IP68 D12 9 9 9
(only for M20x1.5 and ½-14 NPT) bar, mbar, mm H2O*), inH2O*), ftH2O*),
mmHG, inHG, psi, Pa, kPa, MPa, g/cm2,
Digital indicator alongside the input keys D27 9 9 9 kg/cm2, Torr, ATM oder %
(only together with the devices 7MF4333- *) ref. temperature 20 °C
....2-.A.6 or -.A.7-Z, Y21 or Y22 + Y01)
Setting of pressure indication in Y22 + 9
Supplied with oval flange D37F) 9 9 9 non-pressure units3) Y01
(1 item), PTFE packing and stainless steel Specify in plain text:
3
Y22: ..... up to ..... l/min, m /h, m, USgpm, ...
screws in thread of process flange
(specification of measuring range in pressure
Use in or on zone 1D/2D E01 9 9 9 units "Y01" is essential, unit with
(only together with type of protection "Intrinsic max. 5 characters)
safety (EEx ia)")
Preset bus address Y25 9
Use on zone 0 E02 9 9 9 (possible between 1 and 126)
(only together with type of protection "Intrinsic Specify in plain text:
safety (EEx ia)") Y25: .....................
Oxygen application E10 9 9 9 Only "Y01", "Y21", "Y22", "Y25" and "D05" can be factory preset
(max. 120 bar a (1740 psi a) at 60°C (140 °F) 9 = available
with oxygen measurement and inert liquid)
1) When the manufacture’s certificate M (calibration certificate) has to be
Explosion-proof "Intrinsic safety" to E25 9 9 9 ordered for transmitters with diaphragm seals, it is recommended only to
INMETRO (Brazil) order this certificate exclusively with the diaphragm seals. The measuring
(only for transmitter 7MF4...-.....-.B..) accuracy of the total combination is certified here.
2)
Whe the acceptance test certificate 3.1 for transmitters with direct-con-
nected diaphragm seals is ordered, this certificate must also be ordered
with the corresponding seals.
3)
Preset values can only be modified over SIMATIC PDM.

Siemens FI 01 · 2010 2/111 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series for absolute pressure
(from differential pressure series)

■ Dimensional drawings

15
144 (5.67) 100 (3.94)
(0.6) approx. 30 (1.2)5)

2
51
6 2
(2.0)

(0.8)
20

(1.97)
50
(3.15)
Ø 80

117 (4.6)
3

198 (7.8)
74 (2.9) 41)

approx. 261 (10.3)

4)
51) 90 (3.6) 9
10
Space for rotation

8
1
of housing
134 (5.27)

- +
7

96 (3.8)
11
52 (2.05)
approx. 96 (3.78)
(1.97 ... 2.36)
ø 50 ... 60

72 (2.83)
105 (4.1) 68 (2.7)
120 (4.7)
1 Process connection: ¼-18 NPT (EN 61518)
2 Blanking plug
3 Electrical connection:
- screwed gland Pg 13,5 (adapter) 2) 3),
- screwed gland M20x1,5 3),
- screwed gland ½-14 NPT or
- Han 7D/ Han 8U plug 2) 3)
4 Terminal side
5 Electronics side, digital display (longer overall length for cover with
window) 1) Allow approx. 20 mm (0.79 inch) thread length to permit
6 Protective cover over keys unscrewing
7 Mounting bracket (option) 2) Not with type of protection "explosion-proof enclosure"
8 Sealing screw (optionally with vent valve) 3) Not with type of protection "FM + CSA [is + xp]"
9 Screw cover - safety bracket (only for type of protection 4) 92 mm (3.62 inch) for minimum distance to permit rotation with
"Explosion-proof enclosure", not shown in the drawing) indicator
10 Lateral venting for liquid measurement (Standard) 5) 45 mm (1.8 inch) for Pg 13,5 with adapter
11 Lateral venting for gas measurement (suffix H02)

SITRANS P pressure transmitters, DS III HART series for absolute pressure, from the differential pressure series, dimensions in mm (inch)

2/112 Siemens FI 01 · 2010 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series for absolute pressure
(from differential pressure series)

15
144 (5.67) 100 (3.94)
(0.6) approx. 30 (1.2)
51
6 2
(2.0)

(0.8)
20
2

(1.97)
50
(3.15)
Ø 80

117 (4.6)
3

198 (7.8)
74 (2.9) 41)

approx. 261 (10.3)

51) 90 (3.6) 2)
9

10
Space for rotation 8
1
of housing
134 (5.27)

- +
7

96 (3.8)
11
52 (2.05)
(1.97 ... 2.36)
ø 50 ... 60

72 (2.83)
105 (4.1) 68 (2.7)
120 (4.7)
1 Process connection: ¼-18 NPT (EN 61518)
2 Blanking plug
3 Electrical connection:
- screwed gland M20x1,5 4),
- screwed gland ½-14 NPT or
- PROFIBUS plug M12 3) 4)
4 Terminal side
5 Electronic side, digital display (longer overall length for cover with
window)
6 Protective cover over keys 1) Allow approx. 20 mm (0.79 inch) thread length in addition
7 Mounting bracket (option) 2) 92 mm (3.62 inch) for minimum distance to permit rotation with
8 Sealing screw (optionally with vent valve) indicator
9 Screw cover – safety bracket (only for explosion-proof enclosure, 3) Not with type of protection "explosion-proof enclosure"
not shown in the drawing) 4) Not with type of protection "FM + CSA"
10 Lateral venting for liquid measurement (Standard)
11 Lateral venting for gas measurement (suffix H02)

SITRANS P pressure transmitters, DS III PA and FF series for absolute pressure, from the differential pressure series, dimensions in mm (inch)

Siemens FI 01 · 2010 2/113 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series
for differential pressure and flow

■ Technical specifications
SITRANS P, DS III series, for differential pressure and flow
HART PROFIBUS PA or FOUNDATION Fieldbus
Input
2 Measured variable Differential pressure and flow
Spans (infinitely adjustable) or Span Maximum working Nominal measuring Maximum working
nominal measuring range and pressure range pressure
max. permissible working pressure
1 ... 20 mbar 32 bar 20 mbar g 32 bar
(0.4 ... 8 inH2O) (464 psi) (8 inH2O) (464 psi)
1 ... 60 mbar 160 bar 60 mbar 160 bar
(0.4 ... 24 inH2O) (2320 psi) (24 inH2O) (2320 psi)
2.5 ... 250 mbar 250 mbar
(1 ... 100 inH2O) (100 inH2O)
6 ... 600 mbar 600 mbar
(2.4 ... 240 inH2O) (240 inH2O)
16 ... 1600 mbar 1600 mbar
(6.4 ... 642 inH2O) (642 inH2O)
50 ... 5000 mbar 5 bar
(20 ... 2000 inH2O) (2000 inH2O)
0.3 ... 30 bar 30 bar
(4.35 ... 435 psi) (435 psi)
2.5 ... 250 mbar 420 bar 250 mbar 420 bar
(1 ... 100 inH2O) (6091 psi) (100 inH2O) (6091 psi)
6 ... 600 mbar 600 mbar
(2.4 ... 240 inH2O) (240 inH2O)
16 ... 1600 mbar 1600 mbar
(6.4 ... 642 inH2O) (642 inH2O)
50 ... 5000 mbar 5 bar
(20 ... 2000 inH2O) (2000 inH2O)
0.3 ... 30 bar 30 bar
(4.35 ... 435 psi) (435 psi)
Lower measuring limit
• Measuring cell with silicone oil filling -100% of max. span (-33% with 30 bar (435 psi) measuring cell or 30 mbar a (0.44 psi))
Upper measuring limit 100% of max. span (for oxygen version and inert filling liquid; max. 160 bar g (2320 psi g))
Output
Output signal 4 ... 20 mA Digital PROFIBUS PA or FOUNDATION Fieldbus
signal
• Lower limit (infinitely adjustable) 3.55 mA, factory preset to 3.84 mA -
• Upper limit (infinitely adjustable) 23 mA, factory preset to 20.5 mA or optionally set -
to 22.0 mA
Load
• Without HART communication RB ≤ (UH - 10.5 V)/0.023 A in Ω, -
UH : Power supply in V
• With HART communication RB = 230 ... 500 Ω (SIMATIC PDM) or -
RB = 230 ... 1100 Ω (HART Communicator)
Physical bus - IEC 61158-2
Protection against polarity reversal Protected against short-circuit and polarity reversal. Each connection against the other with max.
supply voltage.
Accuracy To EN 60770-1
Reference conditions Increasing characteristic, start-of-scale value 0 bar, stainless steel seal diaphragm, silicone oil filling,
(All error data refer always refer to the set room temperature 25 °C (77 °F)) r: Span ratio (r = max. span / set span)
span)
Error in measurement and fixed-point setting
(including hysteresis and repeatability)
• Linear characteristic ≤ 0,075 %
- r ≤ 10 ≤ (0.0029 ⋅ r + 0.071) %
- 10 < r ≤ 30 ≤ (0.0045 ⋅ r + 0.071) %
- 30 < r ≤ 100 ≤ (0.005 ⋅ r + 0.05) %
• Square-root characteristic (flow > 50%) ≤ 0,1 %
- r ≤ 10 ≤ 0,1 %
- 10 < r ≤ 30 ≤ 0,2 %

2/114 Siemens FI 01 · 2010 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series
for differential pressure and flow
SITRANS P, DS III series, for differential pressure and flow
HART PROFIBUS PA or FOUNDATION Fieldbus
• Square-root characteristic (flow 25 ... 50%) ≤ 0,2 %
- r ≤ 10 ≤ 0,2 % -
- 10 < r ≤ 30 ≤ 0,4 %
Long-term drift (temperature change ± 30 °C ≤ (0.25 ⋅ r) % every 5 years
-
≤ (0.25 % every 5 years
2
(± 54 °F)) static pressure max. 70 bar g (1015 psi g) static pressure max. 70 bar g (1015 psi g)
• 20 mbar (0.29 psi)-measuring cell ≤ (0.2 ⋅ r) per year ≤ 0.2 per year
Influence of ambient temperature
• at -10 ... +60 °C (14 ... 140 °F) ≤ (0.08 ⋅ r + 0.1) % ≤ 0,3 %
• at -40 ... -10 °C and +60 ... +85 °C ≤ (0.1 ⋅ r + 0.15) %/10 K ≤ 0.25 %/10 K
(-40 ... +14 °F and 140 ... 185 °F) (Twice the value with 20-mbar (0.29 psi)
measuring cell)
Influence of static pressure
• on the zero point ≤ (0.15 ⋅ r) % per 100 bar (1450 psi) ≤ 0.15 % je 100 bar (1450 psi)
- 20 mbar (0.29 psi)-measuring cell ≤ (0.15 ⋅ r) % per 32 bar (464 psi) ≤ 0.15 % je 32 bar (464 psi)
• on the span ≤ 0.2 % je 100 bar (1450 psi) -
- 20 mbar (0.29 psi)-measuring cell ≤ 0.2 % je 32 bar (464 psi) -
Measured Value Resolution - 3 ⋅ 10-5 of nominal measuring range
Rated operating conditions
Degree of protection (to EN 60529) IP65
Process temperature
• Measuring cell with silicone oil filling -40 ... +100 °C (-40 ... +212 °F)
• Measuring cell with inert filling liquid -20 ... +100 °C (-4 ... +212 °F)
• In conjunction with dust explosion protec- -20 ... +60 °C (-4 ... +140 °F)
tion
Ambient conditions
• Ambient temperature
- Digital indicators -30 ... +85 °C (-22 ... +185 °F)
• Storage temperature -50 ... +85 °C (-58 ... +185 °F)
• Climatic class
- Condensation Permissible
• Electromagnetic compatibility
- Emitted interference and interference To EN 61326 and NAMUR NE 21
immunity
Material of the mounting bracket
• Steel Sheet steel, Mat. No. 1.0330, chrome-plated
• Stainless steel Stainless steel, Mat. No. 1.4301 (SS304)
Design
Weight (without options) ≈ 4.5 kg (≈ 9.9 lb)
Housing material Poor in copper die-cast aluminium, GD-AlSi12 or stainless steel precision casting, mat. No. 1.4408
Wetted parts materials
• Seal diaphragm Stainless steel, mat. No. 1.4404/316L or Hastelloy C276, mat. No. 2.4819, Monel, mat. No. 2.4360,
tantalum or gold
Measuring cell filling Silicone oil or inert filling liquid (max. 160 bar (2320 psi g) with oxygen measurement)
Process connection Female thread ¼-18 NPT and flange connection with mounting thread M10 to DIN 19213 or
7
/16-20 UNF to EN 61518
Power supply UH Supplied through bus
Terminal voltage on transmitter 10.5 ... 45 V DC -
10.5 ... 30 V DC in intrinsically-safe mode
Separate 24 V power supply necessary - No
Bus voltage
• Not Ex - 9 ...32 V
• With intrinsically-safe operation - 9 ...24 V

Siemens FI 01 · 2010 2/115 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series
for differential pressure and flow
SITRANS P, DS III series, for differential pressure and flow
HART PROFIBUS PA or FOUNDATION Fieldbus
Power supply UH
Current consumption

2 • Basic current (max.)

• Startup current ≤ basic current
-
-
12.5 mA
Yes
• Max. current in event of fault - 15.5 mA
Fault disconnection electronics (FDE) avail. - Yes
Certificate and approvals
Classification according to pressure equip-
ment directive (DRGL 97/23/EC)
PN 32/160 (MWP 464/2320 psi) For gases of fluid group 1 and liquids of fluid group 1; complies with requirements of Article 3, para-
graph 3 (sound engineering practice)
PN 420 (MWP 6092 psi) For gases of fluid group 1 and liquids of fluid group 1; complies with basic safety requirements of
Article 3, paragraph 1 (appendix 1); assigned to category III, conformity evaluation module H by the
TÜV Nord.
Explosion protection
• Intrinsic safety "i" PTB 99 ATEX 2122
- Identification Ex II 1/2 G EEx ia/ib IIB/IIC T6
- Permissible ambient temperature -40 ... +85 °C (-40 ... +185 °F) temperature class T4;
-40 ... +70 °C (-40 ... +158 °F) temperature class T5;
-40 ... +60 °C (-40 ... +140 °F) temperature class T6
- Connection To certified intrinsically-safe circuits with maxi- FISCO supply unit:
mum values: Uo = 17.5 V, Io = 380 mA, Po = 5.32 W
Ui = 30 V, Ii = 100 mA, Linear barrier:
Pi = 750 mW; Ri = 300 Ω Uo = 24 V, Io = 250 mA, Po = 1.2 W
- Effective internal inductance/capacitance L i = 0.4 mH, Ci = 6 nF L i = 7 µH, Ci = 1.1 nF
• Explosion-proof "d" PTB 99 ATEX 1160
- Identification Ex II 1/2 G EEx d IIC T4/T6
- Permissible ambient temperature -40 ... +85 °C (-40 ... +185 °F) temperature class T4;
-40 ... +60 °C (-40 ... +140 °F) temperature class T6
- Connection To circuits with values: UH = 10.5 ... 45 V DC To circuits with values: UH = 9 ... 32 V DC
• Dust explosion protection for zone 20 PTB 01 ATEX 2055
- Identification Ex II 1 D IP65 T 120 °C
Ex II 1/2 D IP65 T 120 °C
- Permissible ambient temperature -40 ... +85 °C (-40 ... +185 °F)
- Max.surface temperature 120 °C (248 °F)
- Connection To certified intrinsically-safe circuits with maxi- FISCO supply unit:
mum values: Uo = 17.5 V, Io = 380 mA, Po = 5.32 W
Ui = 30 V, Ii = 100 mA, Linear barrier:
Pi = 750 mW, Ri = 300 Ω Uo = 24 V, Io = 250 mA, Po = 1.2 W
- Effective internal inductance/capacitance L i = 0.4 mH, Ci = 6 nF L i = 7 µH, Ci = 1.1 nF
• Dust explosion protection for zone 21/22 PTB 01 ATEX 2055
- Identification Ex II 2 D IP65 T 120 °C
- Connection To circuits with values: UH = 10.5 ... 45 V DC; To circuits with values: UH = 9 ... 32 V DC;
Pmax = 1.2 W Pmax = 1.2 W
• Type of protection "n" (zone 2) TÜV 01 ATEX 1696 X Planned
- Identification Ex II 3 G EEx nA L IIC T4/T5/T6 -
• Explosion protection to FM Certificate of Compliance 3008490
- Identification (XP/DIP) or (IS); (NI) CL I, DIV 1, GP ABCD T4...T6; CL II, DIV 1, GP EFG; CL III; CL I, ZN 0/1 AEx ia IIC T4...T6; CL I,
DIV 2, GP ABCD T4...T6; CL II, DIV 2, GP FG; CL III
• Explosion protection to CSA Certificate of Compliance 1153651
- Identification (XP/DIP) or (IS) CL I, DIV 1, GP ABCD T4...T6; CL II, DIV 1, GP EFG; CL III; Ex ia IIC T4...T6; CL I, DIV 2, GP ABCD
T4...T6; CL II, DIV 2, GP FG; CL III

2/116 Siemens FI 01 · 2010 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series
for differential pressure and flow
HART communication Communication FOUNDATION Fieldbus
HART communication 230 ... 1100 Ω Function blocks 3 function blocks analog input,
1 function block PID
Protocol HART Version 5.x
• Analog input
Software for computer SIMATIC PDM

2
- Adaptation to customer- Yes, linearly rising or falling char-
PROFIBUS PA communication specific process variables acteristic
Simultaneous communication with 4 - Electrical damping T63 , 0 ... 100 s
master class 2 (max.) adjustable
The address can be set using Configuration tool or local opera- - Simulation function Output/input (can be locked within
tion (standard setting address the device with a bridge)
126)
- Failure mode Can be parameterized (last good
Cyclic data usage value, substitute value, incorrect
• Output byte 5 (one measuring value) or value)
10 (two measuring values) - Limit monitoring Yes, one upper and lower warning
• Input byte 0, 1, or 2 (register operating mode limit and one alarm limit respec-
and reset function for metering) tively
Internal preprocessing - Square-rooted characteristic Yes
for flow measurement
Device profile PROFIBUS PA Profile for Process
Control Devices Version 3.0, • PID Standard FF function block
Class B • Physical block 1 Resource block
Function blocks 2 Transducer blocks 1 transducer block Pressure with
• Analog input calibration, 1 transducer block
LCD
- Adaptation to customer- Yes, linearly rising or falling char-
specific process variables acteristic • Pressure transducer block
- Electrical damping T63 , 0 ... 100 s - Can be calibrated by applying Yes
adjustable two pressures
- Simulation function Input /Output - Monitoring of sensor limits Yes
- Failure mode Can be parameterized (last good - Simulation function: Measured Constant value or over para-
value, substitute value, incorrect pressure value, sensor temper- meterizable ramp function
value) ature and electronics tempera-
ture
- Limit monitoring Yes, one upper and lower warning
limit and one alarm limit respec-
tively
• Register (totalizer) Can be reset, preset, optional
direction of counting, simulation
function of register output
- Failure mode Can be parameterized (summation
with last good value, continuous
summation, summation with incor-
rect value)
- Limit monitoring One upper and lower warning limit
and one alarm limit respectively
• Physical block 1
Transducer blocks 2
• Pressure transducer block
- Can be calibrated by applying Yes
two pressures
- Monitoring of sensor limits Yes
- Specification of a container Max. 30 nodes
characteristic with
- Square-rooted characteristic Yes
for flow measurement
- Gradual volume suppression Parameterizable
and implementation point of
square-root extraction
- Simulation function for mea- Constant value or over para-
sured pressure value and sen- meterizable ramp function
sor temperature

Siemens FI 01 · 2010 2/117 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series
for differential pressure and flow
Selection and Ordering data Order No. Selection and Ordering data Order No.
SITRANS P pressure transmitters for differen- 7MF 4 4 3 3 - SITRANS P pressure transmitters for differen- 7MF 4 4 3 3 -
tial pressure and flow, Series DS III HART tial pressure and flow, Series DS III HART
77777 - 7777 77777 - 7777
PN 32/160 (MWP 464/2320 psi) PN 32/160 (MWP 464/2320 psi)
Measuring cell filling Measuring cell Display

2 Silicone oil
cleaning
Standard } 1
• Without indicator
• Without visible digital indicator (digital indicator }
0
1
Inert liquid1) Grease-free 3 hidden, setting: mA)
Span • With visible digital indication 6
PN 32 (MWP 464 psi) • With customer-specific digital indicator (setting 7
as specified, Order code "Y21" or „Y22“ re-
1 ... 20 mbar2) (0.4015 ... 8.03 inH2O) } B quired)
PN 160 (MWP 2320 psi) } Available ex stock
1 ... 60 mbar (0.4015 ... 24.09 inH2O) } C
2.5 ... 250 mbar (1.004 ... 100.4 inH2O) } D Power supply units see "SITRANS I power supply units and isolation
amplifiers".
6 ... 600 mbar (2.409 ... 240.9 inH2O) } E
16 ... 1600 mbar (6.424 ... 642.4 inH2O) } F Factory-mounting of shut-off valves and valve manifolds see page
50 ... 5000 mbar (20.08 ... 2008 inH2O) } G 2/147.
0.3 ... 30 bar (4.35 ... 435 psi) } H Included in delivery of the device:
• Brief instructions (Leporello)
Wetted parts materials • CD-ROM with detailed documentation
(stainless steel process flanges) • Sealing plug(s) or sealing screw(s) for the process flanges(s)
Seal diaphragm Parts of measuring cell 1)
For oxygen application, add Order code E10.
Stainless steel Stainless steel } A 2)
Not suitable for connection of remote seal. Position of the top vent valve in
Hastelloy Stainless steel B the process flanges (see dimensional drawing).
3)
Hastelloy Hastelloy C Not together with max. span 20 and 60 mbar (8.03 and 24.09 inH2O)
4)
Tantalum3) Tantalum E When the manufacture’s certificate M (calibration certificate) has to be
ordered for transmitters with diaphragm seals, it is recommended only to
Monel3) Monel H order this certificate exclusively with the diaphragm seals. The measuring
Gold3) Gold L accuracy of the total combination is certified here.
5)
Version for diaphragm seal4) 5) Y Whe the acceptance test certificate 3.1 for transmitters with direct-con-
nected diaphragm seals is ordered, this certificate must also be ordered
Process connection with the corresponding seals.
6)
Female thread ¼-18 NPT with flange connection Not together with Electrical connection „Screwed gland Pg 13.5“ and
• Sealing screw opposite process connection „Han7D plug“.
7)
Without cable gland, with blanking plug
- Mounting thread 7/16-20 UNF to EN 61518 2 8)
With enclosed cable gland EEx ia and blanking plug
- Mounting thread M10 to DIN 19213 } 0 9) Not together with type of protection "Explosion-proof" and and type of
(only for replacement needs) protection "Ex nA".
2)
• Vent on side of process flange 10)
M12 delivered without cable socket.
- Mounting thread 7/16-20 UNF to EN 61518 6
- Mounting thread M10 to DIN 19213 4
(only for replacement needs)
Non-wetted parts materials
Process flange screws Electronics housing
Stainless steel Die-cast aluminium } 2
Stainless steel Stainless steel precision 3
6)
casting
Version
• Standard version 1
• International version, English label inscriptions, } 2
documentation in 5 languages on CD
Explosion protection
• Without A
• With ATEX, Type of protection:
- "Intrinsic safety (EEx ia)" B
- "Explosion-proof (EEx d)"7) D
- "Intrinsic safety and explosion-proof P
enclosure (EEx ia + EEx d)"8)
- "Ex nA/nL (zone 2)" E
- "Intrinsic safety, explosion-proof enclosure } R
and dust explosion protection
(EEx ia + EEx d + Zone 1D/2D)"8)
• With FM + CSA, Type of protection:
- "Intrinsic safety and explosion-proof NC
(is + xp)"7)
Electrical connection / cable entry
• Screwed gland Pg 13.59) A
• Screwed gland M20x1.5 } B
• Screwed gland ½-14 NPT C
• Han 7D plug (plastic housing) incl. mating D
connector10)
• M12 connectors (metal)10) F

2/118 Siemens FI 01 · 2010 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series
for differential pressure and flow
Selection and Ordering data Order No. Selection and Ordering data Order No.
SITRANS P pressure transmitters SITRANS P pressure transmitters
for differential pressure and flow for differential pressure and flow
PN 32/160 (MWP 464/2320 psi) PN 32/160 (MWP 464/2320 psi)
DS III PA series (PROFIBUS PA) 7MF 4 4 3 4 - DS III PA series (PROFIBUS PA) 7MF 4 4 3 4 -
DS III FF series (FOUNDATION Fieldbus) 7MF 4 4 3 5 -
77777 - 7777
DS III FF series (FOUNDATION Fieldbus) 7MF 4 4 3 5 -
77777 - 7777
2
Measuring cell filling Measuring cell Electrical connection / cable entry
cleaning • Screwed gland M20x1.5 B
Silicone oil Standard 1 • Screwed gland ½-14 NPT C
Inert liquid1) Grease-free 3 • M12 connectors (metal)8) F
Nominal measuring range Display
PN 32 (MWP 464 psi) • Without indicator 0
20 mbar2) (8.03 inH2O) B • Without visible digital indicator (digital indicator } 1
PN 160 (MWP 2320 psi) hidden, setting: mA)
60 mbar (24.09 inH2O) C • With visible digital indication 6
250 mbar (100.4 inH2O) D • With customer-specific digital indication (setting 7
as specified, Order code "Y21" or required)
600 mbar (240.9 inH2O) E
1600 mbar (642.4 inH2O) F Factory-mounting of shut-off valves and valve manifolds see page
5 bar (2008 inH2O) G 2/147.
30 bar (435 psi) H Included in delivery of the device:
• Brief instructions (Leporello)
Wetted parts materials • CD-ROM with detailed documentation
(stainless steel process flanges) • Sealing plug(s) or sealing screw(s) for the process flanges(s)
Seal diaphragm Parts of measuring cell 1)
For oxygen application, add Order code E10.
Stainless steel Stainless steel A 2)
Not suitable for connection of remote seal. Position of the top vent valve in
Hastelloy Stainless steel B the process flanges (see dimensional drawing).
3)
Hastelloy Hastelloy C Not together with max. span 20 and 60 mbar (8.03 and 24.09 inH2O)
4) When the manufacture’s certificate M (calibration certificate) has to be
Tantalum3) Tantalum E
ordered for transmitters with diaphragm seals, it is recommended only to
Monel3) Monel H order this certificate exclusively with the diaphragm seals. The measuring
Gold3) Gold L accuracy of the total combination is certified here.
5)
Version as diaphragm seal4) 5) Y Whe the acceptance test certificate 3.1 for transmitters with direct-con-
nected diaphragm seals is ordered, this certificate must also be ordered
Process connection with the corresponding seals.
Female thread ¼-18 NPT with flange connection 6) Without cable gland, with blanking plug.
7)
• Sealing screw opposite process connection With enclosed cable gland EEx ia and blanking plug.
8)
7/ M12 delivered without cable socket.
- Mounting thread 16-20 UNF to EN 61518 2
- Mounting thread M10 to DIN 19213 0
(only for replacement needs)
• Venting on side of process flanges2)
- Mounting thread 7/16-20 UNF to EN 61518 6
- Mounting thread M10 to DIN 19213 4
(only for replacement needs)
Non-wetted parts materials
Process flange screws Electronics housing
Stainless steel Die-cast aluminium 2
Stainless steel Stainless steel precision 3
casting
Version
• Standard version 1
• International version, English label inscriptions, 2
documentation in 5 languages on CD
Explosion protection
• Without A
• With ATEX, Type of protection:
- "Intrinsic safety (EEx ia)" B
- "Explosion-proof (EEx d)"6) D
- "Intrinsic safety and explosion-proof P
enclosure (EEx ia + EEx d)"7)
- "n (Zone 2)" (planned) E
- "Intrinsic safety, explosion-proof enclosure R
and dust explosion protection (EEx ia +
EEx d + Zone 1D/2D)"7) (not for DS III FF)
• With FM + CSA, Type of protection:
- "Intrinsic safety and explosion-proof NC
(is + xp)"6)

Siemens FI 01 · 2010 2/119 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series
for differential pressure and flow
Selection and Ordering data Order code Selection and Ordering data Order code
Further designs HART PA FF Further designs HART PA FF
Add "-Z" to Order No. and specify Order code. Add "-Z" to Order No. and specify Order code.
Pressure transmitter with mounting Oxygen application E10 9 9 9
bracket made of: (max. 120 bar (1740 psi) at 60°C (140 °F) with
2 • Steel
• Stainless steel
A01
A02
9
9
9
9
9
9
oxygen measurement and inert liquid)
Explosion-proof "Intrinsic safety" to E25 9 9 9
O-rings for process flanges INMETRO (Brazil)
(instead of FPM (Viton)) (only for transmitter 7MF4...-.....-.B..)
• PTFE (Teflon) A20 9 9 9 Explosion-proof "Intrinsic safety" to NEPSI E55 9 9 9
• FEP (with silicone core, approved for food) A21 9 9 9 (China)
• FFPM (Kalrez, compound 4079) A22 9 9 9 (only for transmitter 7MF4...-.....-.B..)
• NBR (Buna N) A23 9 9 9 Explosion protection "Explosion-proof" to E56 9 9 9
Plug NEPSI (China)
• Han 7D (metal, gray) A30 9 (only for transmitter 7MF4...-.....-.D..)
• Han 8U (instead of Han 7D) A31 9 Explosion-proof "Zone 2" to NEPSI (China) E57 9 9 9
Sealing screws A40 9 9 9 (only for transmitter 7MF4...-.....-.E..)
¼-18 NPT, with vent valve in mat. of process Interchanging of process connection side H01 9 9 9
flanges
Vent on side for gas measurements H02 9 9 9
Cable sockets for M12 connectors (metal) A50 9 9 9
Stainless steel process flanges for vertical H03 9 9 9
Rating plate inscription (instead of German) differential pressure lines
• English B11 9 9 9 (not together with K01, K02 and K04)3)
• French B12 9 9 9 Process flange
• Spanish B13 9 9 9 • Hastelloy K01 9 9 9
• Italian B14 9 9 9 • Monel K02 9 9 9
English rating plate (calibration certificate) B21 9 9 9 • Stainless steel with PVDF insert K04 9 9 9
Pressure units in inH2O or psi max. PN 10 (MWP 145 psi),
max. temperature of medium 90 °C (194 °F)
Quality inspection certificate (Factory cali- C11 9 9 9
bration) to IEC 60770-2 1) For ½-14 NPT inner process connection on
the side in the middle of the process flange,
2)
Acceptance test certificate C12 9 9 9 vent valve not possible
To EN 10 204-3.1
9 = available
Factory certificate C14 9 9 9
To EN 10 204-2.2 1)
When the manufacture’s certificate M (calibration certificate) has to be
ordered for transmitters with diaphragm seals, it is recommended only to
"Functional Safety (SIL)" certificate C20 9 order this certificate exclusively with the diaphragm seals. The measuring
"PROFIsafe" certificate and protocol C21 9 accuracy of the total combination is certified here.
2)
Whe the acceptance test certificate 3.1 for transmitters with direct-con-
Setting of upper limit of output signal to D05 9 nected diaphragm seals is ordered, this certificate must also be ordered
22.0 mA with the corresponding seals.
3)
Not suitable for connection of remote seal
Manufacturer's declaration acc. to NACE D07 9 9 9
(only together with seal diaphragm made of
Hastelloy and stainless steel)
Type of protection IP68 D12 9 9 9
(only for M20x1.5 and ½-14 NPT)
Digital indicator alongside the input keys D27 9 9 9
(only together with the devices 7MF4433-
....2-.A.6 or -.A.7-Z, Y21 or Y22 + Y01)
Process flange screws made of Monel D34 9 9 9
(max. nominal pressure PN20)
Supplied with oval flange set D37 9 9 9
(2 items), PTFE packings and stainles steel
screws in thread of process flanges
Use in or on zone 1D/2D E01 9 9 9
(only together with type of protection
"Intrinsic safety (EEx ia)")
Use on zone 0 E02 9 9 9
(only together with type of protection
"Intrinsic safety (EEx ia)")
TÜV approval to AD/TRD E06 9
(only together with type of protection
"Intrinsic safety (EEx ia)")
Overfilling safety device for flammable E08 9 9 9
and non-flammable liquids
(max. PN 32 (MVWP 464 psi), basic device
with type of protection "Intrinsic safety
(EEx ia)", to WHG and VbF, not together with
measuring cell filling "inert liquid")

2/120 Siemens FI 01 · 2010 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series
for differential pressure and flow
Selection and Ordering data Order code
Additional data HART PA FF
Add "-Z" to Order No. and specify Order code.
Measuring range to be set
Specify in plain text:
• With linear characteristic (max. 5 digits):
Y01: ... up to ... mbar, bar, kPa, MPa, psi
Y01 9
2
• With square-rooted characteristic (max. 5 Y02 9
digits):
Y02: ... up to ... mbar, bar, kPa, MPa, psi
Measuring point number (TAG No.) Y15 9 9 9
Max. 16 char., specify in plain text: Y15: .......
Measuring point text Y16 9 9 9
Max. 27 char., specify in plain text: Y16: .......
Entry of HART address (TAG) Y17 9
Max. 8 char., specify in plain text: Y17: .......
Setting of pressure indicator in pressure Y21 9 9 9
units
Specify in plain text (standard setting: mA):
Y21: mbar, bar, kPa, MPa, psi, ...
Note:
The following pressure units can be selected:
bar, mbar, mm H2O*), inH2O*), ftH2O*),
mmHG, inHG, psi, Pa, kPa, MPa, g/cm2,
kg/cm2, Torr, ATM oder %
*) ref. temperature 20 °C
Setting of pressure indicator in Y222) 9
non-pressure units1) +
Specify in plain text: Y01 or
Y22: ..... up to ..... l/min, m3/h, m, USgpm, ... Y02
(specification of measuring range in pressure
units "Y01" or "Y02" is essential, unit with
max. 5 characters)
Preset bus address Y25 9
(possible between 1 and 126)
Specify in plain text:
Y25: .....................
Only "Y01", "Y21", "Y22", "Y25" and "D05" can be factory preset
9 = available
1)
Preset values can only be modified over SIMATIC PDM.
2)
Not together with over-filling safety device for flammable and
non-flammable liquids (Order code "E08")

Siemens FI 01 · 2010 2/121 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series
for differential pressure and flow
Selection and Ordering data Order No. Selection and Ordering data Order No.
SITRANS P pressure transmitters for differen- 7MF 4 5 3 3 - SITRANS P pressure transmitters for differen- 7MF 4 5 3 3 -
tial pressure and flow, Series DS III HART tial pressure and flow, Series DS III HART
77777 - 7777 77777 - 7777
PN 420 (MWP 6092 psi) PN 420 (MWP 6092 psi)
Measuring cell filling Measuring cell Display

2 Silicone oil
cleaning
Standard 1
• Without indicator
• Without visible digital indicator (digital indicator }
0
1
hidden, setting: mA)
Span • With visible digital indication 6
2.5 ... 250 mbar (1.004 ... 100.4 inH2O) D • With customer-specific digital indicator (setting 7
6 ... 600 mbar (2.409 ... 240.9 inH2O) E as specified, Order code "Y21" or „Y22“ re-
16 ... 1600 mbar (6.424 ... 642.4 inH2O) F quired)
50 ... 5000 mbar (20.08 ... 2008 inH2O) G Power supply units see "SITRANS I power supply units and isolation
0.3 ... 30 bar (4.35 ... 435 psi) H amplifiers".
Wetted parts materials Factory-mounting of shut-off valves and valve manifolds see page
(stainless steel process flanges) 2/147.
Seal diaphragm Parts of measuring cell Scope of delivery: Pressure transmitter as ordered (Instruction Manual is
Stainless steel Stainless steel A extra ordering item)
Hastelloy Stainless steel B 1)
Not together with max. span 600 mbar (240.9 inH2O)
Gold1) Gold L 2)
Not together with Electrical connection „Screwed gland Pg 13.5“ and
„Han7D plug“.
Process connection 3)
Without cable gland, with blanking plug
Female thread ¼-18 NPT with flange connection 4)
With enclosed cable gland EEx ia and blanking plug
• Sealing screw opposite process connection 5) Not together with type of protection "Explosion-proof" and and type of
- Mounting thread 7/16-20 UNF to EN 61518 3 protection "Ex nA".
6)
- Mounting thread M12 to DIN 19213 1 Cannot be used together with the following types of protection:
(only for replacement needs) "Explosion-proof" and "Intrinsic safety and explosion-proof".
• Venting on side of process flanges. Position of
the top vent valve in the process flanges (see
dimensional drawing).
- Mounting thread 7/16-20 UNF to EN 61518 7
- Mounting thread M12 to DIN 19213 5
(only for replacement needs)
Non-wetted parts materials
Process flange screws Electronics housing
Stainless steel Die-cast aluminium 2
Stainless steel Stainless steel precision 3
casting2)
Version
• Standard version 1
• International version, English label inscriptions, 2
documentation in 5 languages on CD
Explosion protection
• Without A
• With ATEX, Type of protection:
- "Intrinsic safety (EEx ia)" B
- "Explosion-proof (EEx d)"3) D
- "Intrinsic safety and explosion-proof P
enclosure (EEx ia + EEx d)"4)
- "Ex nA/nL (zone 2)" E
- "Intrinsic safety, explosion-proof enclosure R
and dust explosion protection (EEx ia +
EEx d + Zone 1D/2D)"4)
• With FM + CSA, Type of protection:
- "Intrinsic safety and explosion-proof NC
(is + xp)"3), max PN 360
Electrical connection / cable entry
• Screwed gland Pg 13.55) A
• Screwed gland M20x1.5 B
• Screwed gland ½-14 NPT C
• Han 7D plug (plastic housing) incl. mating D
connector5)
• M12 connectors (metal)6) F

2/122 Siemens FI 01 · 2010 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series
for differential pressure and flow
Selection and Ordering data Order No. Selection and Ordering data Order No.
SITRANS P pressure transmitters for differen- SITRANS P pressure transmitters for differen-
tial pressure and flow, Series DS III HART tial pressure and flow, Series DS III HART
PN 420 (MWP 6092 psi) PN 420 (MWP 6092 psi)
DS III PA (PROFIBUS PA) series 7MF 4 5 3 4 - DS III PA (PROFIBUS PA) series 7MF 4 5 3 4 -
DS III FF series (FOUNDATION Fieldbus) 7MF 4 5 3 5 -
1 7777 - 7777
DS III FF series (FOUNDATION Fieldbus) 7MF 4 5 3 5 -
1 7777 - 7777
2
Nominal measuring range Display
250 mbar (100.4 inH2O) D • Without indicator 0
600 mbar (240.9 inH2O) E • Without visible digital indicator (digital indicator } 1
1600 mbar (642.4 inH2O) F hidden, setting: mA)
5 bar (2008 inH2O) G • With visible digital indicator 6
30 bar (435 psi) H • With customer-specific digital indicator (setting 7
as specified, Order code "Y21" or required)
Wetted parts materials
(stainless steel process flanges) Factory-mounting of shut-off valves and valve manifolds see page
2/147.
Seal diaphragm Parts of measuring cell
Included in delivery of the device:
Stainless steel Stainless steel A • Brief instructions (Leporello)
Hastelloy Stainless steel B • CD-ROM with detailed documentation
Gold1) Gold L • Sealing plug(s) or sealing screw(s) for the process flanges(s)
Process connection 1)
Not together with max. span 600 mbar (240.9 inH2O)
2)
Female thread ¼-18 NPT with flange connection Without cable gland, with blanking plug.
3)
• Sealing screw opposite process connection With enclosed cable gland EEx ia and blanking plug.
4) Not together with types of protection "Explosion-proof" and "Intrinsic safety
- Mounting thread 7/16-20 UNF to EN 61518 3
and explosion-proof"
- Mounting thread M12 to DIN 19213 1
(only for replacement needs)
• Venting on side of process flanges. Position of
the top vent valve in the process flanges (see
dimensional drawing).
- Mounting thread 7/16-20 UNF to EN 61518 7
- Mounting thread M12 to DIN 19213 5
(only for replacement needs)
Non-wetted parts materials
Process flange screws Electronics housing
Stainless steel Die-cast aluminium 2
Stainless steel Stainless steel precision 3
casting
Version
• Standard version 1
• International version, English label inscriptions, 2
documentation in 5 languages on CD
Explosion protection
• Without A
• With ATEX, Type of protection:
- "Intrinsic safety (EEx ia)" B
- "Explosion-proof (EEx d)"2) D
- "Intrinsic safety and explosion-proof P
enclosure (EEx ia + EEx d)"3)
- "Ex nA/nL (zone 2)" E
- "Intrinsic safety, explosion-proof enclosure R
and dust explosion protection (EEx ia +
EEx d + Zone 1D/2D)"3) (not for DS III FF)
• With FM + CSA, Type of protection:
- "Intrinsic safety and explosion-proof NC
(is + xp)"2), max PN 360
Electrical connection / cable entry
• Screwed gland M20x1.5 B
• Screwed gland ½-14 NPT C
• Plug M12 incl. mating connector4) F

Siemens FI 01 · 2010 2/123 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series
for differential pressure and flow
Selection and Ordering data Order code Selection and Ordering data Order code
Further designs HART PA FF Further designs HART PA FF
Add "-Z" to Order No. and specify Order Add "-Z" to Order No. and specify Order
code. code.
9 9 9
2
Pressure transmitter with mounting Explosion protection "Explosion-proof" to E56
bracket made of: NEPSI (China)
• Steel A01 9 9 9 (only for transmitter 7MF4...-.....-.D..)
• Stainless steel A02 9 9 9 Explosion-proof "Zone 2" to NEPSI (China) E57 9 9 9
O-rings for process flanges (only for transmitter 7MF4...-.....-.E..)
(instead of FPM (Viton))
• PTFE (Teflon) A20 9 9 9 Interchanging of process connection side H01 9 9 9
• FEP (with silicone core, approved for food) A21 9 9 9 Stainless steel process flanges for H03 9 9 9
• FFPM (Kalrez, compound 4079) A22 9 9 9 vertical differential pressure lines
• NBR (Buna N) A23 9 9 9 Additional data
Plug Add "-Z" to Order No. and specify Order
• Han 7D (metal, gray) A30 9 code.
• Han 8U (instead of Han 7D) A31 9 Measuring range to be set
Sealing screws A40 9 9 9 Specify in plain text:
¼-18 NPT, with vent valve in material of pro- • With linear characteristic (max. 5 digits): Y01 9
cess flanges Y01: ... up to ... mbar, bar, kPa, MPa, psi
• With square-rooted characteristic Y02 9
Cable sockets for M12 connectors (metal) A50 9 9 9
(max. 5 digits):
Rating plate inscription Y02: ... up to ... mbar, bar, kPa, MPa, psi
(instead of German) Measuring point number (TAG No.) Y15 9 9 9
• English B11 9 9 9 Max. 16 characters, specify in plain text:
• French B12 9 9 9 Y15: ...........................................
• Spanish B13 9 9 9
Measuring point text Y16 9 9 9
• Italian B14 9 9 9 Max. 27 characters, specify in plain text:
English rating plate B21 9 9 9 Y16: ...........................................
Pressure units in inH2O or psi Entry of HART address (TAG) Y17 9
Quality inspection certificate (Factory cali- C11 9 9 9 Max. 8 characters, specify in plain text:
bration) to IEC 60770-2 Y17: ...........................................
Acceptance test certificate C12 9 9 9 Setting of pressure indication in pressure Y21 9 9 9
To EN 10204-3.1 units
Specify in plain text (standard setting: mA):
Factory certificate C14 9 9 9 Y21: mbar, bar, kPa, MPa, psi, ...
To EN 10204-2.2 Note:
"Functional Safety (SIL)" certificate C20 9 The following pressure units can be selected:
bar, mbar, mm H2O*), inH2O*), ftH2O*),
"PROFIsafe" certificate and protocol C21 9
mmHG, inHG, psi, Pa, kPa, MPa, g/cm2,
Setting of upper limit of output signal to D05 9 kg/cm2, Torr, ATM or %
22.0 mA *) ref. temperature 20 °C
Manufacturer's declaration acc. to NACE D07 9 9 9 Setting of pressure indication in Y22 + 9
(only together with seal diaphragm made of non-pressure units1) Y01 or
Hastelloy and stainless steel) Specify in plain text: Y02
Y22: ..... up to ..... l/min, m3/h, m, USgpm, ...
Type of protection IP68 D12 9 9 9 (specification of measuring range in pressure
(only for M20x1.5 and ½-14 NPT) units "Y01" or "Y02" is essential, unit with
(not together with Han 7D / Han 8U plug, max. 5 characters)
Pg 13.5 screwed gland)
Preset bus address Y25 9
Digital indicator alongside the input keys D27 9 9 9 (possible between 1 and 126)
(only together with the devices 7MF4533- Specify in plain text:
....2-.A.6 or -.A.7-Z, Y21 or Y22 + Y01) Y25: .....................
Use in or on zone 1D/2D E01 9 9 9 Only "Y01", "Y21", "Y22", "Y25" and "D05" can be factory preset
(only together with type of protection
9 = available
"Intrinsic safety (EEx ia)")
1)
Use on zone 0 E02 9 9 9 Preset values can only be modified over SIMATIC PDM.
(only together with type of protection
"Intrinsic safety (EEx ia)")
Explosion-proof "Intrinsic safety" to E25 9 9 9
INMETRO (Brazil)
(only for transmitter 7MF4...-.....-.B..)
Explosion-proof "Intrinsic safety" to E55 9 9 9
NEPSI (China)
(only for transmitter 7MF4...-.....-.B..)

2/124 Siemens FI 01 · 2010 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series
for differential pressure and flow

■ Dimensional drawings

15
144 (5.67) 100 (3.94)
(0.6) approx. 30 (1.2)5)

2
51
6 2
(2.0)

(0.8)
20

(1.97)
50
(3.15)
Ø 80

117 (4.6)
3

198 (7.8)
74 (2.9) 41)

approx. 261 (10.3)

4)
51) 90 (3.6) 9
10
Space for rotation

8
1
of housing
134 (5.27)

- +
7

96 (3.8)
11
52 (2.05)
approx. 96 (3.78)
(1.97 ... 2.36)
ø 50 ... 60

72 (2.83)
105 (4.1) 68 (2.7)
120 (4.7)
1 Process connection: ¼-18 NPT (EN 61518)
2 Blanking plug
3 Electrical connection:
- screwed gland Pg 13,5 (adapter) 2) 3),
- screwed gland M20x1,5 3),
- screwed gland ½-14 NPT or
- Han 7D/ Han 8U plug 2) 3)
4 Terminal side
5 Electronics side, digital display (longer overall length for cover with
window) 1) Allow approx. 20 mm (0.79 inch) thread length to permit
6 Protective cover over keys unscrewing
7 Mounting bracket (option) 2) Not with type of protection "explosion-proof enclosure"
8 Sealing screw (optionally with vent valve) 3) Not with type of protection "FM + CSA [is + xp]"
9 Screw cover - safety bracket (only for type of protection 4) 92 mm (3.62 inch) for minimum distance to permit rotation with
"Explosion-proof enclosure", not shown in the drawing) indicator
10 Lateral venting for liquid measurement (Standard) 5) 45 mm (1.8 inch) for Pg 13,5 with adapter
11 Lateral venting for gas measurement (suffix H02)

SITRANS P pressure transmitters, DS III HART series for differential pressure and flow, dimensions in mm (inch)

Siemens FI 01 · 2010 2/125 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series
for differential pressure and flow

15
144 (5.67) 100 (3.94)
(0.6) approx. 30 (1.2)
51
6 2
(2.0)

(0.8)
20
2

(1.97)
50
(3.15)
Ø 80

117 (4.6)
3

198 (7.8)
74 (2.9) 41)

approx. 261 (10.3)

51) 90 (3.6) 2)
9

10
Space for rotation 8
1
of housing
134 (5.27)

- +
7

96 (3.8)
11
52 (2.05)
(1.97 ... 2.36)
ø 50 ... 60

72 (2.83)
105 (4.1) 68 (2.7)
120 (4.7)
1 Process connection: ¼-18 NPT (EN 61518)
2 Blanking plug
3 Electrical connection:
- screwed gland M20x1,5 4),
- screwed gland ½-14 NPT or
- PROFIBUS plug M12 3) 4)
4 Terminal side
5 Electronic side, digital display (longer overall length for cover with
window)
6 Protective cover over keys 1) Allow approx. 20 mm (0.79 inch) thread length in addition
7 Mounting bracket (option) 2) 92 mm (3.62 inch) for minimum distance to permit rotation w
8 Sealing screw (optionally with vent valve) indicator
9 Screw cover – safety bracket (only for explosion-proof enclosure, 3) Not with type of protection "explosion-proof enclosure"
not shown in the drawing) 4) Not with type of protection "FM + CSA"
10 Lateral venting for liquid measurement (Standard)
11 Lateral venting for gas measurement (suffix H02)

SITRANS P pressure transmitters, DS III PA and FF series for differential pressure and flow, dimensions in mm (inch)

2/126 Siemens FI 01 · 2010 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series
for differential pressure and flow

15
(0.6) 144 (5.67) approx. 30 (1.18) 8) 100 (3.94)
51 6 2
approx. 96 (3.78)
74 (2.9) (2.0)

(0.8)
20

(1.97)
2

50
(3.15)
Ø 80

3 3
41)

approx. 217 (8.54) 7)

Space for rotation
9
51) 90 (3.6)4)

of housing

approx. 85 (3.35) 6)
+ -
8 8

67 (2.64)5)
approx. 84,6 (3.33)

1 Process connection: ¼-18 NPT (EN 61518)

2 Blanking plug
3 Electrical connection:
- screwed gland Pg 13,5 (adapter) 2) 3),
- screwed gland M20x1,5 3), 1) Allow approx. 20 mm (0.79 inch) thread length to
- screwed gland ½-14 NPT or permit unscrewing
- Han 7D/ Han 8U plug 2) 3) 2) Not with type of protection "explosion-proof
4 Terminal side enclosure"
5 Electronics side, digital display (longer overall length for cover with 3) Not with type of protection "FM + CSA [is + xp]"
window) 4) 92 mm (3.6 inch) for minimum distance to permit
6 Protective cover over keys rotation with indicator
7 Mounting bracket (option) 5) 74 mm (2.9 inch) for PN ≤ 420 (MWP ≤ 6092 psi)
8 Sealing screw (optionally with vent valve) 6) 91 mm (3.6 inch) for PN ≤ 420 (MWP ≤ 6092 psi)
9 Screw cover - safety bracket (only for type of protection 7) 219 mm (8.62 inch) for PN ≤ 420 (MWP ≤ 6092 psi)
"Explosion-proof enclosure", not shown in the drawing) 8) 45 mm (1.8 inch) for Pg 13,5 with adapter

SITRANS P pressure transmitters, DS III HART series for differential pressure and flow, with process covers for vertical differential pressure lines,
option „H03“, dimensions in mm (inch)

Siemens FI 01 · 2010 2/127 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series
for differential pressure and flow

15
(0.6) 144 (5.67) approx. 30 (1.18) 100 (3.94)
51 6 2
74 (2.9) (2.0)

(0.8)
20

(1.97)
2

50
(3.15)
Ø 80

3
41)

approx. 217 (8.54) 7)

Space for rotation
9
51) 90 (3.6) 4)

of housing

approx. 85 (3.35) 6)
+ -
8 8

67 (2.64)5)
approx. 84,6 (3.33)

1 Process connection ¼-18 NPT (EN 61 518)

2 Blanking plug
3 Electrical connection:
- screwed gland M20x1.5 3),
- screwed gland ½-14 NPT or 1) Allow approx. 20 mm (0.79 inch) thread length to
- PROFIBUS plug M12 2) 3) permit unscrewing
4 Terminal side 2) Not with type of protection "explosion-proof
5 Electronics side, digital display (longer overall length for cover with enclosure"
window) 3) Not with type of protection "FM + CSA [is + xp]"
6 Protective cover over keys 4) 92 mm (3.6 inch) for minimum distance to permit
7 Mounting bracket (option) rotation with indicator
8 Sealing screw (optionally with vent valve) 5) 74 mm (2.9 inch) for PN ≤ 420 (MWP ≤ 6092 psi)
9 Screw cover safety bracket (only for explosion-proof enclosure, 6) 91 mm (3.6 inch) for PN ≤ 420 (MWP ≤ 6092 psi)
not shown in the drawing) 7) 219 mm (8.62 inch) for PN ≤ 420 (MWP ≤ 6092 psi)

SITRANS P pressure transmitters, DS III PA and FF series for differential pressure and flow, with process covers for vertical differential pressure lines,
option „H03“, dimensions in mm (inch)

SITRANS P pressure transmitters, DS III series for differential pressure and

flow, with process covers for vertical differential pressure lines

2/128 Siemens FI 01 · 2010 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series
for differential pressure and flow

7 4 6

2
5

183 (7.2)
115 (4.5) 1

- +

90
(3.6)

2
193 (7.6)

TERMINALS
FIELD 1 Process connection, ¼-18 NPT (EN 61 518)
2 Terminal side, analog indicator (optional)
3 External digital indicator (optional)
4 Sealing plug
5 Fixing screw
6 Blanking plug
3 7 Protective cover for keys
8 Electrical connection

SITRANS P pressure transmitters, DS III FF series for differential pressure and flow, with digital indicator beside control keys, for vertical differential pressure
lines, option „D27“, dimensions in mm (inch)

SITRANS P pressure transmitters, DS III series for differential pressure and

flow, with digital indicator beside control keys

Siemens FI 01 · 2010 2/129 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series
for level

■ Technical specifications
SITRANS P, DS III series for level
HART PROFIBUS PA or FOUNDATION Fieldbus
Input
2 Measured variable Level
Spans (infinitely adjustable) or Span Maximum working Nominal measuring Maximum working
nominal measuring range and pressure range pressure
max. permissible working pressure
25 ... 250 mbar g See "Mounting flange" 250 mbar g See "Mounting flange"
(0.36 ... 3.63 psi g) (3.63 psi g)
25 ... 600 mbar g See "Mounting flange" 600 mbar g See "Mounting flange"
(0.36 ... 8.7 psi g) (8.7 psi g)
53 ... 1600 mbar g See "Mounting flange" 1600 mbar g See "Mounting flange"
(0.77 ... 23.2 psi g) (23.2 psi g)
160 ... 5000 mbar g See "Mounting flange" 5000 mbar g See "Mounting flange"
(2.32 ... 72.5 psi g) (72.5 psi g)
Lower measuring limit
• Measuring cell with silicone oil filling -100% of max. span or 30 mbar (0.435 psi a), depending on mounting flange
Upper measuring limit 100% of max. span 100% of the max. nominal measuring range
Output
Output signal 4 ... 20 mA Digital PROFIBUS PA or FOUNDATION Fieldbus
signal
• Lower limit (infinitely adjustable) 3.55 mA, factory preset to 3.84 mA -
• Upper limit (infinitely adjustable) 23 mA, factory preset to 20.5 mA or optionally -
set to 22.0 mA
Load
• Without HART communication RB ≤ (UH - 10.5 V)/0.023 A in Ω, -
UH : Power supply in V
• With HART communication RB = 230 ... 500 Ω (SIMATIC PDM) or -
RB = 230 ... 1100 Ω (HART Communicator)
Physical bus - IEC 61158-2
Protection against polarity reversal Protected against short-circuit and polarity reversal. Each connection against the other with max.
supply voltage.
Accuracy To EN 60770-1
Reference conditions Increasing characteristic, start-of-scale value 0 bar, stainless steel seal diaphragm, silicone oil fill-
(All error data refer always refer to the set span) ing, room temperature 25 °C (77 °F)) r: Span ratio (r = max. span / set span)
Error in measurement and fixed-point setting
(including hysteresis and repeatability)
• Linear characteristic ≤ 0.15 %
- r ≤ 10 ≤ 0.15 %
- 10 < r ≤ 30 ≤ 0.3 %
- 30 < r ≤ 100 ≤ (0.0075 ⋅ r + 0.075) %
Long-term drift (temperature change ±30 °C ≤ (0.25 ⋅ r) % every 5 years ≤ (0.25 % every 5 years
(±54 °F)) static pressure max. 70 bar g (1015 psi g) static pressure max. 70 bar g (1015 psi g)
Influence of ambient temperature
• at -10 ... +60 °C (14 ... 140 °F)
- 250 mbar (3.63 psi) measuring cell ≤ (0.5 ⋅ r + 0.2) % ≤ 0,7 %
(0.4 instead of 0.2 with 10 < r ≤ 30)
- 600 mbar (8.7 psi) measuring cell ≤ (0.3 ⋅ r + 0.2) % ≤ 0,5 %
(0.4 instead of 0.2 with 10 < r ≤ 30)
- 1600 and 5000 mbar (23.2 and 72.5 psi) ≤ (0.25 ⋅ r + 0.2) % (0.4 instead of 0.2 with 10 < r ≤ 0,45 %
measuring cells ≤ 30)
• at -40 ... -10 °C and +60 ... +85 °C
(-40 ... +14 °F and 140 ... 185 °F)
- 250 mbar (3.63 psi) measuring cell ≤ (0.25 ⋅ r +0.15) %/10 K ≤ 0.4 %/10 K
double values with 10 < r ≤ 30
- 600 mbar (8.7 psi) measuring cell ≤ (0.15 ⋅ r +0.15) %/10 K ≤ 0.3 %/10 K
double values with 10 < r ≤ 30
- 1600 and 5000 mbar (23.2 and 72.5 psi) ≤ (0.12 ⋅ r +0.15) %/10 K ≤ 0.27 %/10 K
measuring cells double values with 10 < r ≤ 30

2/130 Siemens FI 01 · 2010 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series
for level
SITRANS P, DS III series for level
HART PROFIBUS PA or FOUNDATION Fieldbus
Influence of static pressure
• on the zero point
- 250 mbar (3.63 psi) measuring cell
- 600 mbar (8.7 psi) measuring cell
≤ (0.3 ⋅ r) % per nominal pressure
≤ (0.15 ⋅ r) % per nominal pressure
≤ 0.3 % per nominal pressure
≤ 0.15 % per nominal pressure
2
- 1600 and 5000 mbar (23.2 and 72.5 psi) ≤ (0.1 ⋅ r) % per nominal pressure ≤ 0.1 % per nominal pressure
measuring cells
• on the span ≤ (0.1 ⋅ r) % per nominal pressure ≤ 0.1 % per nominal pressure
Measured Value Resolution - 3 ⋅ 10-5 of nominal measuring range
Rated operating conditions
Degree of protection (to EN 60529) IP65
Process temperature Note: Always take into account assignment of max. permissible working temperature to max. per-
missible working pressure of the respective flange connection!
• Measuring cell with silicone oil filling -40 ... +100 °C (-40 ... +212 °F)
- High-pressure side pabs ≥ 1bar: -40 ... +175 °C (-40 ... +347 °F)
pabs ≥ 1bar: -40 ... +80 °C (-40 ... +176 °F)
- Low-pressure side -40 ... +100 °C (-40 ... +212 °F)
-20 ... +60 °C (-4 ... +140 °F) in conjunction with dust explosion protection
Ambient conditions
• Ambient temperature
- Digital indicators -30 ... +85 °C (-22 ... +185 °F)
• Storage temperature -50 ... +85 °C (-58 ... +185 °F)
• Climatic class
- Condensation Permissible
• Electromagnetic compatibility
- Emitted interference and interference immu- To EN 61326 and NAMUR NE 21
nity
Design
Weight (without options)
• To EN (pressure transmitter with mounting ≈ 11 ... 13 kg (≈ 24.2 ... 28.7 lb)
flange, without tube)
• To ASME (pressure transmitter with mounting ≈ 11 ... 18 kg (≈ 24.2 ... 39.7 lb)
flange, without tube)
Wetted parts materials Poor in copper die-cast aluminium, GD-AlSi12 or stainless steel precision casting, mat. No. 1.4408
Housing material
High-pressure side
• Seal diaphragm of mounting flange Stainless steel, mat. No. 1.4404/316L, Monel, mat. No. 2.4360, Hastelloy B2, mat. No. 2.4617,
Hastelloy C276, mat. No. 2.4819, Hastelloy C4, mat. No. 2.4610, tantalum, PTFE, ECTFE
Measuring cell filling Silicone oil
Process connection
• High-pressure side Flange to EN and ASME
• Low-pressure side Female thread ¼-18 NPT and flange connection with mounting thread M10 to DIN 19213 or
7
/16-20 UNF to EN 61518
Power supply UH Supplied through bus
Terminal voltage on transmitter 10.5 ... 45 V DC -
10.5 ... 30 V DC in intrinsically-safe mode
Separate 24 V power supply necessary - No
Bus voltage
• Not Ex - 9 ... 32 V
• With intrinsically-safe operation - 9 ... 24 V
Current consumption
• Basic current (max.) - 12.5 mA
• Startup current ≤ basic current - Yes
• Max. current in event of fault - 15.5 mA
Fault disconnection electronics (FDE) available - Yes

Siemens FI 01 · 2010 2/131 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series
for level
SITRANS P, DS III series for level
HART PROFIBUS PA or FOUNDATION Fieldbus
Certificate and approvals
Classification according to pressure equipment For gases of fluid group 1 and liquids of fluid group 1; complies with requirements of Article 3,

2
directive (DRGL 97/23/EC) paragraph 3 (sound engineering practice)
Explosion protection
• Intrinsic safety "i" PTB 99 ATEX 2122
- Identification Ex II 1/2 G EEx ia/ib IIB/IIC T6
- Permissible ambient temperature -40 ... +85 °C (-40 ... +185 °F) temperature class T4;
-40 ... +70 °C (-40 ... +158 °F) temperature class T5;
-40 ... +60 °C (-40 ... +140 °F) temperature class T6
- Connection To certified intrinsically-safe circuits with maxi- FISCO supply unit:
mum values: Uo = 17.5 V, Io = 380 mA, Po = 5.32 W
Ui = 30 V, Ii = 100 mA, Linear barrier:
Pi = 750 mW; Ri = 300 Ω Uo = 24 V, Io = 250 mA, Po = 1.2 W
- Effective internal inductance/capacitance L i = 0.4 mH, Ci = 6 nF L i = 7 µH, Ci = 1.1 nF
• Explosion-proof "d" PTB 99 ATEX 1160
- Identification Ex II 1/2 G EEx d IIC T4/T6
- Permissible ambient temperature -40 ... +85 °C (-40 ... +185 °F) temperature class T4;
-40 ... +60 °C (-40 ... +140 °F) temperature class T6
- Connection To circuits with values: UH = 10.5 ... 45 V DC To circuits with values: UH = 9 ... 32 V DC
• Dust explosion protection for zone 20 PTB 01 ATEX 2055
- Identification Ex II 1 D IP65 T 120 °C
Ex II 1/2 D IP65 T 120 °C
- Permissible ambient temperature -40 ... +85 °C (-40 ... +185 °F)
- Max.surface temperature 120 °C (248 °F)
- Connection To certified intrinsically-safe circuits with maxi- FISCO supply unit:
mum values: Uo = 17.5 V, Io = 380 mA, Po = 5.32 W
Ui = 30 V, Ii = 100 mA, Linear barrier:
Pi = 750 mW, Ri = 300 Ω Uo = 24 V, Io = 250 mA, Po = 1.2 W
- Effective internal inductance/capacitance L i = 0.4 mH, Ci = 6 nF L i = 7 µH, Ci = 1.1 nF
• Dust explosion protection for zone 21/22 PTB 01 ATEX 2055
- Identification Ex II 2 D IP65 T 120 °C
- Connection To circuits with values: UH = 10.5 ... 45 V DC; To circuits with values: UH = 9 ... 32 V DC;
Pmax = 1.2 W Pmax = 1.2 W
• Type of protection "n" (zone 2) TÜV 01 ATEX 1696 X TÜV 01 ATEX 1696 X
- Identification Ex II 3 G EEx nA L IIC T4/T5/T6 Ex II 3 G EEx nA L IIC T4/T5/T6
• Explosion protection to FM Certificate of Compliance 3008490
- Identification (XP/DIP) or (IS); (NI) CL I, DIV 1, GP ABCD T4...T6; CL II, DIV 1, GP EFG; CL III; CL I, ZN 0/1 AEx ia IIC T4...T6; CL I,
DIV 2, GP ABCD T4...T6; CL II, DIV 2, GP FG; CL III
• Explosion protection to CSA Certificate of Compliance 1153651
- Identification (XP/DIP) or (IS) CL I, DIV 1, GP ABCD T4...T6; CL II, DIV 1, GP EFG; CL III; Ex ia IIC T4...T6; CL I, DIV 2, GP ABCD
T4...T6; CL II, DIV 2, GP FG; CL III

2/132 Siemens FI 01 · 2010 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series
for level
HART communication Communication FOUNDATION
Fieldbus
HART communication 230 ... 1100 Ω
Function blocks 3 function blocks analog input,
Protocol HART Version 5.x 1 function block PID
Software for computer SIMATIC PDM • Analog input
PROFIBUS PA communication
Simultaneous communication with 4
- Adaptation to customer-
specific process variables
Yes, linearly rising or falling char-
acteristic
2
master class 2 (max.) - Electrical damping T63 , 0 ... 100 s
The address can be set using Configuration tool or local opera- adjustable
tion (standard setting address - Simulation function Output/input (can be locked within
126) the device with a bridge)
Cyclic data usage - Failure mode Can be parameterized (last good
• Output byte 5 (one measuring value) or value, substitute value, incorrect
10 (two measuring values) value)
• Input byte 0, 1, or 2 (register operating mode - Limit monitoring Yes, one upper and lower warning
and reset function for metering) limit and one alarm limit respec-
tively
Internal preprocessing
- Square-rooted characteristic Yes
Device profile PROFIBUS PA Profile for Process for flow measurement
Control Devices Version 3.0,
Class B • PID Standard FF function block
Function blocks 2 • Physical block 1 Resource block
• Analog input Transducer blocks 1 transducer block Pressure with
calibration, 1 transducer block
- Adaptation to customer- Yes, linearly rising or falling char- LCD
specific process variables acteristic
• Pressure transducer block
- Electrical damping T63 , 0 ... 100 s
adjustable - Can be calibrated by applying Yes
two pressures
- Simulation function Input /Output
- Monitoring of sensor limits Yes
- Failure mode Can be parameterized (last good
value, substitute value, incorrect - Simulation function: Measured Constant value or over para-
value) pressure value, sensor temper- meterizable ramp function
ature and electronics tempera-
- Limit monitoring Yes, one upper and lower warning ture
limit and one alarm limit respec-
tively
Mounting flange
• Register (totalizer) Can be reset, preset, optional
direction of counting, simulation Nom. diam. Nom. press.
function of register output • To EN 1092-1
- Failure mode Can be parameterized (summation - DN 80 PN 40
with last good value, continuous
summation, summation with incor- - DN 100 PN16, PN40
rect value) • To ASME B16.5
- Limit monitoring One upper and lower warning limit - 3 inch Class 150, class 300
and one alarm limit respectively
- 4 inch Class 150, class 300
• Physical block 1
Transducer blocks 2
• Pressure transducer block
- Can be calibrated by applying Yes
two pressures
- Monitoring of sensor limits Yes
- Specification of a container Max. 30 nodes
characteristic with
- Square-rooted characteristic Yes
for flow measurement
- Gradual volume suppression Parameterizable
and implementation point of
square-root extraction
- Simulation function for mea- Constant value or over parameter-
sured pressure value and sen- izable ramp function
sor temperature

Siemens FI 01 · 2010 2/133 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series
for level

Selection and Ordering data Order No. 1)

Not together with Electrical connection „Screwed gland Pg 13.5“ and
SITRANS P pressure transmitters for level 7MF 4 6 3 3 - „Han7D plug“.
2)
series DS III HART Without cable gland, with blanking plug.
77 Y77 - 7777 3) With enclosed cable gland EEx ia and blanking plug.
4)
Measuring cell filling Measuring cell Not together with type of protection "Explosion-proof" and type of protection
"Ex nA".
2
cleaning 5)
M12 delivered without cable socket.
Silicone oil Standard 1
Span
25 ... 250 mbar (0.36 ... 3.63 psi) D
25 ... 600 mbar (0.36 ... 8.70 psi) E
53 ... 1600 mbar (0.8 ... 23.2 psi) F
0.16 ... 5 bar (2.3 ... 72.5 psi) G
Process connection of low-pressure side
Female thread ¼-18 NPT with flange connection
• Mounting thread 7/16-20 UNF to EN 61518 2
• Mounting thread M10 to DIN 19213 0
(only for replacement needs)
Non-wetted parts materials
Process flange screws Electronics housing
Stainless steel Die-cast aluminium 2
Stainless steel Stainless steel precision 3
casting1)
Version
• Standard version 1
• International version, English label inscriptions, 2
documentation in 5 languages on CD
Explosion protection
• Without A
• With ATEX, Type of protection:
- "Intrinsic safety (EEx ia)" B
- "Explosion-proof (EEx d)"2) D
- "Intrinsic safety and explosion-proof P
enclosure (EEx ia + EEx d)"3)
- "Ex nA/nL (zone 2)" E
- "Intrinsic safety, explosion-proof enclosure R
and dust explosion protection (EEx ia +
EEx d + Zone 1D/2D)"3)
• With FM + CSA, Type of protection:
- "Intrinsic safety and explosion-proof NC
(is + xp)"1)
Electrical connection / cable entry
• Screwed gland Pg 13.54) A
• Screwed gland M20x1.5 B
• Screwed gland ½-14 NPT C
• Han 7D plug (plastic housing) incl. mating D
connector4)
• M12 connectors (metal)5) F
Display
• Without indicator 0
• Without visible digital indicator (digital indicator } 1
hidden, setting: mA)
• With visible digital indication 6
• With customer-specific digital indicator (setting 7
as specified, Order code "Y21" or „Y22“ re-
quired)
Ordering information:
1st order item: Pressure transmitter 7MF4633-...
2nd order item: Mounting flange 7MF4912-3...
Ordering example:
Item line 1: 7MF4633-1EY20-1AA1-Z
B line: Y01
C line: Y01: 80 to 143 mbar (1.16 to 2.1 psi)
Item line 2: 7MF4912-3GE01
Power supply units see "SITRANS I power supply units and isolation
amplifiers".
Included in delivery of the device:
• Brief instructions (Leporello)
• CD-ROM with detailed documentation
• Sealing plug(s) or sealing screw(s) for the process flanges(s)

2/134 Siemens FI 01 · 2010 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series
for level
Selection and Ordering data Order No. Selection and Ordering data Order code
SITRANS P pressure transmitter Further designs HART PA FF
for level
Add "-Z" to Order No. and
DS III PA series (PROFIBUS PA) 7MF 4 6 3 4 - specify Order code.

2
DS III FF series (FOUNDATION Fieldbus) 7MF 4 6 3 5 - O-rings for process flanges on
low-pressure side
1 7 Y77 - 7777
(instead of FPM (Viton))
Nominal measuring range • PTFE (Teflon) A20 9 9 9
250 mbar (3.63 psi) D • FEP (with silicone core, approved for food) A21 9 9 9
600 mbar (8.70 psi) E • FFPM (Kalrez, compound 4079) A22 9 9 9
1600 mbar (23.2 psi) F • NBR (Buna N) A23 9 9 9
5 bar (72.5 psi) G
Plug
Process connection of low-pressure side • Han 7D (metal, gray) A30 9
Female thread ¼-18 NPT with flange connection • Han 8U (instead of Han 7D) A31 9
• Mounting thread M10 to DIN 19213 0
(only for replacement needs) Sealing screws
• Mounting thread 7/16-20 UNF to EN 61518 2 ¼-18 NPT, with vent valve in material of pro- A40 9 9 9
cess flanges
Non-wetted parts materials
Cable sockets for M12 connectors (metal) A50 9 9 9
Process flange screws Electronics housing
Rating plate inscription
Stainless steel Die-cast aluminium 2
(instead of German)
Stainless steel Stainless steel precision 3
casting • English B11 9 9 9
• French B12 9 9 9
Version • Spanish B13 9 9 9
• Standard version 1 • Italian B14 9 9 9
• International version, English label inscriptions, 2
documentation in 5 languages on CD English rating plate B21 9 9 9
Pressure units in inH2O or psi
Explosion protection
• Without A Quality inspection certificate C11 9 9 9
• With ATEX, Type of protection: (Factory calibration) to IEC 60770-2
- "Intrinsic safety (EEx ia)" B Acceptance test certificate C12 9 9 9
- "Explosion-proof (EEx d)"1) D To EN 10204-3.1
- "Intrinsic safety and explosion-proof e P Factory certificate C14 9 9 9
nclosure (EEx ia + EEx d)"2)
To EN 10204-2.2
- "Ex nA/nL (zone2)" E
- "Intrinsic safety, explosion-proof enclosure R "Functional Safety (SIL)" certificate C20 9
and dust explosion protection (EEx ia +
EEx d + Zone 1D/2D)"2) (not for DS III FF) "PROFIsafe" certificate and protocol C21 9
• With FM + CSA, Type of protection: Setting of upper limit of output signal D05 9
- "Intrinsic safety and explosion-proof NC to 22.0 mA
(is + xp)"1) Type of protection IP68 D12 9 9 9
Electrical connection / cable entry (only for M20x1.5 and ½-14 NPT)
• Screwed gland M20x1.5 B Supplied with oval flange D37 9 9 9
• Screwed gland ½-14 NPT C (1 item), PTFE packing and stainless steel
• Plug M12 incl. mating connector3) F screws in thread of process flange
Display Use on zone 1D / 2D E01 9 9 9
• Without indicator 0 (only together with type of protection
• Without visible digital indicator (digital indicator } 1 "Intrinsic safety (EEx ia)")
hidden, setting: mA) Use on zone 0 E02 9 9 9
• With visible digital indication 6 (only together with type of protection
• With customer-specific digital indication (setting 7 "Intrinsic safety (EEx ia)")
as specified, Order code "Y21" or required)
Overfilling safety device for flammable E08 9 9
Ordering information: and non-flammable liquids
1st order item: Pressure transmitter 7MF4634-... (max. PN 32 (MVWP 464 psi), basic device
2nd order item: Mounting flange 7MF4912-... with type of protection "Intrinsic safety
Ordering example: (EEx ia)")
Item line 1: 7MF4634-1EY20-1AA1 Explosion-proof "Intrinsic safety" E25 9 9 9
Item line 2: 7MF4912-3GE01 to INMETRO (Brazil)
Included in delivery of the device: (only for transmitter 7MF4...-.....-.B..)
• Brief instructions (Leporello) Explosion-proof "Intrinsic safety" E55 9 9 9
• CD-ROM with detailed documentation to NEPSI (China)
• Sealing plug(s) or sealing screw(s) for the process flanges(s)
(only for transmitter 7MF4...-.....-.B..)
1)
Without cable gland, with blanking plug. Explosion protection "Explosion-proof" E56 9 9 9
2)
With enclosed cable gland EEx ia and blanking plug. to NEPSI (China)
3)
M12 delivered without cable socket. (only for transmitter 7MF4...-.....-.D..)
Explosion-proof "Zone 2" to NEPSI (China) E57 9 9 9
(only for transmitter 7MF4...-.....-.E..)

Interchanging of process connection side H01 9 9 9

Siemens FI 01 · 2010 2/135 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series
for level
Selection and Ordering data Order code Selection and Ordering data Order No.Ord. code
Additional data HART PA FF Mounting flange D) 7 M F 4 9 1 2 -
Add "-Z" to Order No. and Directly mounted on the 3 7777 777
specify Order code. SITRANS P pressure transmitter (converter part)
for level, for DS III series
9
2
Measuring range to be set Y01
• Hastelloy B2, mat. No. 2.4617 H
Specify in plain text (max. 5 digits):
Y01: ... up to ... mbar, bar, kPa, MPa, psi • Hastelloy C276, mat. No. 2.4819 J
• Hastelloy C4, mat. No. 2.4610 U
Measuring point number (TAG No.) Y15 9 9 9 • Tantalum K
Max. 16 characters, specify in plain text:
Y15: ........................................... Other version, add Z K1Y
Order code and plain text:
Measuring point text Y16 9 9 9 material of parts in contact with the medium: ...
Max. 27 characters, specify in plain text: Sealing face, see "Technical specifications"
Y16: ...........................................
Tube length
Entry of HART address (TAG) Y17 9 • Without 0
Max. 8 characters, specify in plain text: • 50 mm (1.97 inch) 1
Y17: ........................................... • 100 mm (3.94 inch) 2
Setting of pressure indicator in pressure Y21 9 9 9 • 150 mm (5.90 inch) 3
units • 200 mm (7.87 inch) 4
Specify in plain text (standard setting: mA): Other version: add 9 L1Y
Y21: mbar, bar, kPa, MPa, psi, ... Order code and plain text:
Note: Tube length: ...
The following pressure units can be selected:
Filling liquid
bar, mbar, mm H2O*), inH2O*), ftH2O*),
• Silicone oil M5 1
mmHG, inHG, psi, Pa, kPa, MPa, g/cm2,
kg/cm2, Torr, ATM or % • Silicone oil M50 2
*) ref. temperature 20 °C • High-temperature oil 3
• Halocarbon oil (for O2 measurements) 4
Setting of pressure indicator in Y221) 9
non-pressure units2) + Y01 • Glycerin / water2) 6
Specify in plain text: • Food oil (FDA-listed) 7
Y22: ..... up to ..... l/min, m3/h, m, USgpm, ... Other version, add 9 M1 Y
(specification of measuring range in Order code and plain text:
pressure units "Y01" is essential, unit with filling liquid: ...
max. 5 characters)
1)
Preset bus address Y25 9 For vacuum on request
2)
Not suitable for use in low-pressure range
(possible between 1 and 126)
Specify in plain text: D) Subject to export regulations AL:N, ECCN: EAR99H
Y25: .....................
Selection and Ordering data Order code
Only "Y01", "Y21", "Y22", "Y25" and "D05" can be factory preset
Further designs HART PA and
9 = available FF
Add "-Z" to Order No. and
1)
Not together with over-filling safety device for flammable and specify Order code.
non-flammable liquids (Order code "E08") Flame flashover lock-out A01 9 9
2)
Preset values can only be modified over SIMATIC PDM. For mounting on zone 0 (including documen-
tation)
Selection and Ordering data Order No.Ord. code
Quality inspection certificate C11 9 9
Mounting flange D) 7 M F 4 9 1 2 - (Factory calibration) to IEC 60770-2
Directly mounted on the 3 7777 777 Acceptance test certificate C12 9 9
SITRANS P pressure transmitter (converter part) To EN 10204-3.1
for level, for DS III series
Vacuum-proof design V04 9 9
Connection acc. to EN 1092-1
(for use in low-pressure range)
Nom. diam. Nom. press.
DN 80 PN 40 D Calculation of span of associated Y05 9 9
DN 100 PN 16 G pressure transmitter
PN 40 H (enclose filled-in questionnaire with order)
Note:
Connection acc. to ASME B16.5 suffix "Y01" required with pressure transmitter!
Nom. diam. Nom. press.
9 = available
3 inch Class 150 Q
Class 300 R
4 inch Class 150 T
Class 300 U
Other version, add Z J1Y
Order code and plain text:
Nominal diameter: ...; Nominal pressure: ...
Wetted parts materials
• Stainless steel 316L A
- Coated with PFA D
- Coated with PTFE E0
- Coated with ECTFE1) F
• Monel 400, mat. No. 2.4360 G

2/136 Siemens FI 01 · 2010 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series
for level

■ Dimensional drawings
approx. 30 (1.18)5)
185
15
100 (3.94) 144 (5.67) (0.6)

2
51
6 (2.0) 74 (2.9)

2
3

165 (6.5)
51)

L 90 (3.6)4)
9

d5
d4

D
k
54 (2.1)
3 1 108 (4.25)

Space for rotation

of housing
n x d2
b
approx. 96 (3.78)
f
1 Process connection of low pressure side ¼-18 NPT (EN 61 518)
2 Blanking plug
3 Electrical connection:
- screwed gland Pg 13.5 (adapter) 2) 3),
- screwed gland M20x1.5 3), 6
- screwed gland ½-14 NPT or 51)
41)
- Han 7D/ Han 8U plug 2) 3)
4 Terminal side
5 Electronics side, digital display (longer overall length for cover with window)
6 Protective cover over keys
8 Sealing screw (optionally with vent valve)
9 Screw cover safety bracket (only for type of protection "Explosion-proof
enclosure", not shown in the drawing)

1) Allow approx. 20 mm (0.79 inch) thread length in addition

2) Not with type of protection "Explosion-proof enclosure"
3) Not with type of protection "FM + CSA [is + xp]"
4) 92 mm (3.62 inch) for minimum distance to permit rotation without indicator
5) Approx. 45 mm (1.77 inch) for Pg 13.5 with adapter

SITRANS P pressure transmitters, DS III HART series for level, including mounting flange, dimensions in mm (inch)
Connection to EN 1092-1
Nom. diam. Nom. press. b D d d2 d4 d5 dM f k n L
mm mm mm mm mm mm mm mm mm mm mm
DN 80 PN 40 24 200 90 18 138 76 72 1) 2 160 8 0, 50, 100,
DN 100 PN 40 20 220 115 18 158 94 89 2 180 8 150 or 200
PN 40 24 235 115 22 162 94 89 2 190 8

Connection to ASME B16.5

Nom. diam. Nom. press. b D d2 d4 d5 dM f k n L
lb/sq.in. inch inch inch inch inch inch inch inch inch
(mm) (mm) (mm) (mm) (mm) (mm) (mm) (mm) (mm)
3 inch 150 0.94 7.5 0.75 5 3 2.81 1) 0.06 6 4 0, 2, 3.94, 5.94 or 7.87
(23.8) (190.5) (19.0) (127) (76) (72) (1.6) (152.4) (0, 50, 100, 150 or 200)
300 1.12 8.25 0.87 5 3 2.81 1) 0.06 6.69 8
(28.6) (209.5) (22.2) (127) (76) (72) (1.6) (168.3)
4 inch 150 0.94 9 0.75 6.19 3.69 3.5 0.06 7.5 8
(23.8) (228.5) (19.0) (157.2) (94) (89) (1.6) (190.5)
300 1.25 10 0.87 6.19 3.69 3.5 0.06 7.88 8
(31.7) (254) (22.2) (157.2) (94) (89) (1.6) (200)
1)
d: Internal diameter of gasket to DIN 2690 89 mm = 3½ inch with tube length L = 0.
dM: Effective diaphragm diameter

Siemens FI 01 · 2010 2/137 316191

 © Siemens AG 2009

SITRANS P measuring instruments for pressure

Transmitters for gauge, absolute and differential pressure, flow and level
DS III series
for level

30 (1.18)
185
15
100 (3.94) 144 (5.67) (0.6)
51
6 (2.0) 74 (2.9)

2
2
3

165 (6.5)
51)

L 90(3.6)4)
9

d5
d4

D
k
54 (2.1)
1 108 (4.25)

Space for rotation

of housing
n x d2
b
f
1 Process connection of low pressure side ¼-18 NPT (EN 61518)
2 Blanking plug
3 Electrical connection:
- screwed connection M20x1,5 3),
- screwed connection ½-14 NPT or 6
- PROFIBUS plug M12 2) 3) 51)
41)
4 Terminal side
5 Electronics side, digital display (longer overall length for cover with window)
6 Protective cover over keys
8 Sealing screw (optionally with vent valve)
9 Screw cover safety bracket (only for "explosion-proof enclosure", not
shown in the drawing)

1) Allow approx. 20 mm (0.79 inch) thread length in addition

2) Not with type of protection "Explosion-proof enclosure"
3) Not with type of protection "FM + CSA [is + xp]"
4) 92 mm (3.62 inch) for minimum distance to permit rotation with indicator

SITRANS P pressure transmitters, DS III PA and FF series for level, including mounting flange, dimensions in mm (inch)
Connection to EN 1092-1
Nom. diam. Nom. press. b D d d2 d4 d5 dM f k n L
mm mm mm mm mm mm mm mm mm mm mm
DN 80 PN 40 24 200 90 18 138 76 721) 2 160 8 0, 50, 100,
150 or 200
DN 100 PN 40 20 220 115 18 158 94 89 2 180 8
PN 40 24 235 115 22 162 94 89 2 190 8

Connection to ASME B16.5

Nom. diam. Nom. press. b D d2 d4 d5 dM f k n L
lb/sq.in. inch inch inch inch inch inch inch inch inch
(mm) (mm) (mm) (mm) (mm) (mm) (mm) (mm) (mm)
3 inch 150 0.94 7.5 0.75 5 3 2.811) 0.06 6 4 0, 2, 3.94, 5.94 or 7.87
(23.8) (190.5) (19.0) (127) (76) (72) (1.6) (152.4) (0, 50, 100, 150 or 200)
300 1.12 8.25 0.87 5 3 2.811) 0.06 6.69 8
(28.6) (209.5) (22.2) (127) (76) (72) (1.6) (168.3)
4 inch 150 0.94 9 0.75 6.19 3.69 3.5 0.06 7.5 8
(23.8) (228.5) (19.0) (157.2) (94) (89) (1.6) (190.5)
300 1.25 10 0.87 6.19 3.69 3.5 0.06 7.88 8
(31.7) (254) (22.2) (157.2) (94) (89) (1.6) (200)
1)
d: Internal diameter of gasket to DIN 2690 89 mm = 3½ inch with tube length L = 0.
dM: Effective diaphragm diameter

2/138 Siemens FI 01 · 2010 316191

 12/2007
Operating Instructions Edition 12/2007

Operating Instructions
SITRANS P, DS III series with HART communication
Pressure transmitter
SITRANS P, DS III series
with HART communication

sitrans
Siemens Aktiengesellschaft
@1PA5E00047092@
A5E00047092 Automation and Drives (A&D)
Sensors and Communication
Process Sensors
76181 KARLSRUHE
GERMANY
A5E00047092-06 www.siemens.com/processinstrumentation

310674

A5E00047092D-06 GN: 30060_DuoDrDif

310674
 Introduction 1

General safety notes 2

Description 3
SITRANS
Install 4
Pressure transmitter
SITRANS P, DS III series with 5
Connecting
HART communication
Operation 6
Operating Instructions
Operating functions through
HART 7

Functional safety 8

Commissioning 9

Service and maintenance 10

Technical data 11

Dimension drawings 12

Spare parts/accessories 13

Appendix A
7MF4*33
List of abbreviations B

12/2007
A5E00047092-06

310674
Safety Guidelines
This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent
damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert
symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are
graded according to the degree of danger.

DANGER
indicates that death or severe personal injury will result if proper precautions are not taken.

WARNING
indicates that death or severe personal injury may result if proper precautions are not taken.

CAUTION
with a safety alert symbol, indicates that minor personal injury can result if proper precautions are not taken.

CAUTION
without a safety alert symbol, indicates that property damage can result if proper precautions are not taken.

NOTICE
indicates that an unintended result or situation can occur if the corresponding information is not taken into
account.
If more than one degree of danger is present, the warning notice representing the highest degree of danger will
be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to
property damage.

Qualified Personnel
The device/system may only be set up and used in conjunction with this documentation. Commissioning and
operation of a device/system may only be performed by qualified personnel. Within the context of the safety notes
in this documentation qualified persons are defined as persons who are authorized to commission, ground and
label devices, systems and circuits in accordance with established safety practices and standards.

Prescribed Usage
Note the following:

WARNING
This device may only be used for the applications described in the catalog or the technical description and only
in connection with devices or components from other manufacturers which have been approved or
recommended by Siemens. Correct, reliable operation of the product requires proper transport, storage,
positioning and assembly as well as careful operation and maintenance.

Trademarks
All names identified by ® are registered trademarks of the Siemens AG. The remaining trademarks in this
publication may be trademarks whose use by third parties for their own purposes could violate the rights of the
owner.

Disclaimer of Liability
We have reviewed the contents of this publication to ensure consistency with the hardware and software
described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the
information in this publication is reviewed regularly and any necessary corrections are included in subsequent
editions.

Siemens AG Ordernumber: A5E00047092 Copyright © Siemens AG 2007.

Automation and Drives Ⓟ 03/2008 Technical data subject to change
Postfach 48 48
90327 NÜRNBERG
GERMANY

310674
Table of contents
1 Introduction................................................................................................................................................ 9
1.1 Objective of this documentation.....................................................................................................9
1.2 History ............................................................................................................................................9
1.3 Scope of this manual ...................................................................................................................10
1.4 Further information.......................................................................................................................10
2 General safety notes................................................................................................................................ 11
2.1 General information .....................................................................................................................11
2.2 Correct usage...............................................................................................................................11
2.3 Laws and directives .....................................................................................................................11
2.4 Measures .....................................................................................................................................11
2.5 Qualified Personnel......................................................................................................................13
3 Description............................................................................................................................................... 15
3.1 System configuration ...................................................................................................................15
3.2 Application range .........................................................................................................................16
3.3 Structure.......................................................................................................................................17
3.4 Structure of the type plate and approval plate .............................................................................18
3.5 Functional principle ......................................................................................................................20
3.5.1 Overview of mode of operation ....................................................................................................20
3.5.2 Operation of the electronics .........................................................................................................20
3.5.3 Measuring cell operation..............................................................................................................21
3.5.3.1 Measuring cell for gauge pressure...............................................................................................22
3.5.3.2 Measuring cell for differential pressure and flow rate ..................................................................23
3.5.3.3 Measuring cell for level ................................................................................................................24
3.5.3.4 Measuring cell for absolute pressure from the differential pressure series .................................25
3.5.3.5 Measuring cell for absolute pressure from the gauge pressure series........................................26
3.5.3.6 Measuring cell for gauge pressure, front-flush membrane ..........................................................26
3.5.3.7 Measuring cell for absolute pressure, front-flush membrane ......................................................27
3.6 Remote seal .................................................................................................................................28
3.7 SIMATIC PDM..............................................................................................................................28
4 Install ....................................................................................................................................................... 29
4.1 Safety notes for installation..........................................................................................................29
4.2 Installation (except level) .............................................................................................................31
4.2.1 Instructions for installation (except level).....................................................................................31
4.2.2 Installation (except level) .............................................................................................................32
4.2.3 Fastening .....................................................................................................................................32
4.3 "Level" installation ........................................................................................................................34

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 3

310674
Table of contents

4.3.1 Instructions for level installation .................................................................................................. 34

4.3.2 Installation for level ..................................................................................................................... 35
4.3.3 Connection of the negative pressure line.................................................................................... 36
4.4 "Remote seal" installation ........................................................................................................... 38
4.4.1 Remote seal installation .............................................................................................................. 38
4.4.2 Installation of the remote seal with the capillary line................................................................... 40
4.5 Turing the measuring cell against housing ................................................................................. 46
4.6 Turning the digital display ........................................................................................................... 47
5 Connecting .............................................................................................................................................. 49
5.1 Safety notes for connection......................................................................................................... 49
5.2 Connecting the device................................................................................................................. 50
5.3 Connecting the Han plug............................................................................................................. 52
5.4 Connecting the M12 connector ................................................................................................... 52
6 Operation................................................................................................................................................. 55
6.1 Overview of operation ................................................................................................................. 55
6.2 Safety information for operation.................................................................................................. 56
6.3 Instructions for operation............................................................................................................. 56
6.4 Digital display .............................................................................................................................. 57
6.4.1 Elements of the digital display .................................................................................................... 57
6.4.2 Units display................................................................................................................................ 58
6.4.3 Error display ................................................................................................................................ 59
6.4.4 Mode display ............................................................................................................................... 60
6.4.5 Status display.............................................................................................................................. 60
6.4.6 Overflow range............................................................................................................................ 61
6.5 Local operation............................................................................................................................ 63
6.5.1 Local control elements ................................................................................................................ 63
6.5.2 Operation using buttons .............................................................................................................. 65
6.5.3 Start of scale value/full scale value............................................................................................. 66
6.5.3.1 Difference between setting and adjusting ................................................................................... 66
6.5.3.2 Setting/adjusting the start of scale value .................................................................................... 70
6.5.3.3 Setting/adjusting the full scale value........................................................................................... 71
6.5.4 Setting/adjusting electrical damping ........................................................................................... 72
6.5.5 Blind start of scale value/full scale value .................................................................................... 73
6.5.5.1 Difference between setting/adjusting and blind setting/adjusting ............................................... 73
6.5.5.2 Blind setting of start of scale value ............................................................................................. 75
6.5.5.3 Blind setting of full scale value .................................................................................................... 76
6.5.5.4 Blind adjusting of the start of scale value.................................................................................... 76
6.5.5.5 Blind adjustment of the full scale value....................................................................................... 77
6.5.6 Trimming the zero point .............................................................................................................. 77
6.5.7 Current transmitter ...................................................................................................................... 78
6.5.8 Output current in case of fault ..................................................................................................... 79
6.5.9 buttons and function lock ............................................................................................................ 80
6.5.10 Releasing key lock or function lock............................................................................................. 81
6.5.11 Flow rate measurement (only differential pressure) ................................................................... 82
6.5.12 Measured value display .............................................................................................................. 85
6.5.13 Unit .............................................................................................................................................. 86
7 Operating functions through HART .......................................................................................................... 91

SITRANS P, DS III series with HART communication

4 Operating Instructions, 12/2007, A5E00047092-06

310674
 Table of contents

7.1 Operating functions through HART communication ....................................................................91

7.2 Process tag data ..........................................................................................................................92
7.3 Selecting the measuring modes...................................................................................................92
7.3.1 Overview of measuring modes ....................................................................................................92
7.3.2 Measuring mode selector.............................................................................................................93
7.3.3 Variable mapper...........................................................................................................................93
7.3.4 Measuring mode "Pressure" ........................................................................................................94
7.3.5 Customized characteristic curve ..................................................................................................95
7.3.6 Measuring mode "Level" ..............................................................................................................95
7.3.7 Measuring mode "Flow rate"........................................................................................................98
7.3.8 Measuring mode "User" ...............................................................................................................99
7.3.9 Measured value status...............................................................................................................101
7.3.10 Analog output .............................................................................................................................105
7.3.11 Scaling the digital display value .................................................................................................106
7.4 Setting zero point and limit point................................................................................................107
7.5 Blind setting of zero point and limit point ...................................................................................108
7.6 Zero point calibration (position correction).................................................................................108
7.7 Electrical damping......................................................................................................................109
7.8 Fast response mode ..................................................................................................................109
7.9 Current sensor ...........................................................................................................................109
7.10 Fault current ...............................................................................................................................109
7.11 Setting the current limits ............................................................................................................110
7.12 Key lock and write protection .....................................................................................................111
7.13 Measured value display .............................................................................................................112
7.14 Selection of the physical unit .....................................................................................................113
7.15 Bar graph ...................................................................................................................................113
7.16 Sensor calibration ......................................................................................................................113
7.16.1 Sensor trim.................................................................................................................................113
7.16.2 Trimming of the sensor trim point ..............................................................................................114
7.17 Current sensor trim ....................................................................................................................115
7.18 Factory calibration......................................................................................................................116
7.19 Static configuration data ............................................................................................................117
7.20 Flow rate measurement (only differential pressure) ..................................................................118
7.21 Diagnostic functions...................................................................................................................119
7.21.1 Overview ....................................................................................................................................119
7.21.2 Operating hours counter ............................................................................................................119
7.21.3 Calibration timer and service timer ............................................................................................120
7.21.4 Min/max indicator.......................................................................................................................120
7.21.5 Limit modules .............................................................................................................................121
7.22 Simulation ..................................................................................................................................123
7.22.1 Overview of simulation...............................................................................................................123
7.22.2 Simulation as fixed value ...........................................................................................................124
7.22.3 Simulation with a ramp function .................................................................................................124
7.23 Limit monitor...............................................................................................................................125

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 5

310674
Table of contents

8 Functional safety.................................................................................................................................... 129

8.1 General safety instructions........................................................................................................ 129
8.1.1 Safety-instrumented system...................................................................................................... 129
8.1.2 Safety Integrity Level (SIL)........................................................................................................ 130
8.2 Device-specific safety instructions ............................................................................................ 131
8.2.1 Safety function .......................................................................................................................... 131
8.2.2 Requirements............................................................................................................................ 132
8.2.3 Settings ..................................................................................................................................... 132
8.2.4 Behavior in case of faults .......................................................................................................... 133
8.2.5 Maintenance/Checking.............................................................................................................. 133
8.2.6 Safety characteristics ................................................................................................................ 134
9 Commissioning ...................................................................................................................................... 135
9.1 Safety notes for commissioning ................................................................................................ 135
9.2 Notes on commissioning ........................................................................................................... 136
9.3 Introduction to commissioning .................................................................................................. 136
9.4 Gauge pressure, absolute pressure from the differential pressure series and absolute
pressure from the gauge pressure series ................................................................................. 137
9.4.1 Commissioning for gases.......................................................................................................... 137
9.4.2 Commissioning with steam or liquid.......................................................................................... 138
9.5 Differential pressure and flow rate ............................................................................................ 139
9.5.1 Safety notes for commissioning with differential pressure and flow rate .................................. 139
9.5.2 Commissioning in gaseous environments ................................................................................ 140
9.5.3 Commissioning for liquids ......................................................................................................... 142
9.5.4 Commissioning with vapor ........................................................................................................ 144
10 Service and maintenance ...................................................................................................................... 147
10.1 Notes for servicing .................................................................................................................... 147
10.2 Display in case of a fault ........................................................................................................... 147
10.3 Modular structure ...................................................................................................................... 148
10.4 Notes for servicing of the remote seal ...................................................................................... 149
11 Technical data ....................................................................................................................................... 151
11.1 Overview of technical data ........................................................................................................ 151
11.2 Input point.................................................................................................................................. 152
11.3 Output........................................................................................................................................ 157
11.4 Measuring accuracy .................................................................................................................. 158
11.5 Operating conditions ................................................................................................................. 164
11.6 Construction .............................................................................................................................. 167
11.7 Display, keyboard and auxiliary power ..................................................................................... 171
0

Certificates and approvals ........................................................................................................................ 172

11.9 HART communication ............................................................................................................... 173
12 Dimension drawings .............................................................................................................................. 175

SITRANS P, DS III series with HART communication

6 Operating Instructions, 12/2007, A5E00047092-06

310674
 Table of contents

12.1 SITRANS P, DS III series for gauge pressure and absolute pressure from the gauge
pressure series...........................................................................................................................175
12.2 SITRANS P, DS III series for differential pressure, flow rate and absolute pressure from
the differential pressure series...................................................................................................176
12.3 SITRANS P, DS III series for level.............................................................................................179
12.4 SITRANS P, DS III series (flush mounted) ................................................................................180
12.4.1 Note 3A and EHDG....................................................................................................................181
12.4.2 Connections as per EN and ASME............................................................................................181
12.4.3 F&B and pharma flange .............................................................................................................182
12.4.4 PMC Style ..................................................................................................................................185
12.4.5 Special connections ...................................................................................................................186
13 Spare parts/accessories ........................................................................................................................ 187
13.1 Order data ..................................................................................................................................187
13.2 Order data for SIMATIC PDM ....................................................................................................190
A Appendix................................................................................................................................................ 195
A.1 Certifications ..............................................................................................................................195
A.2 Literature and standards ............................................................................................................195
A.3 SIL Declaration of Conformity ....................................................................................................196
A.4 exida proven in use....................................................................................................................199
A.5 Overview of HART operating structure ......................................................................................203
A.6 Pressure equipment directive ....................................................................................................206
B List of abbreviations............................................................................................................................... 209
B.1 Functional safety ........................................................................................................................210
Glossary ................................................................................................................................................ 211
Index...................................................................................................................................................... 215

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 7

310674
Table of contents

SITRANS P, DS III series with HART communication

8 Operating Instructions, 12/2007, A5E00047092-06

310674
Introduction 1
1.1 Objective of this documentation
This programming manual contains all information that you will require to commission and
use the device.
It is aimed at persons who install the device mechanically, connect it electrically,
parameterize and commission it, as well as at service and maintenance engineers.
This document also contains special information and safety notes that you will require when
using an SIL-certified device in safety-instrumented systems.

1.2 History
This history establishes the correlation between the current documentation and the valid
firmware of the device.
The documentation of this edition is applicable for the following firmware:

Edition Firmware identification type System integration Installation path for PDM
plate
08/2007 FW: 11.03.03, FW: 11.03.04, PDM 6.01); Dev. R.3 SITRANS P DSIII.2
FW: 11.03.05, FW: 11.03.06, DD Rev. 2
FW: 11.03.07
1) up to SP02
The most important changes in the documentation when compared with the respective
previous edition are given in the following table.
Edition Remark
06 Illustrations of the device have been changed owing to the changes in the device
08/2007 housing.
The following chapters have also been changed:
• Chapter "Description" > "Functional principle" has
new enhanced contents for the "flush mounted diaphragm" topic
• Chapter "Description" > "SIMATIC PDM" - NEW
• Chapter "Functional safety" - NEW
• Chapter "Technical data" has
new enhanced contents for the "flush mounted diaphragm" topic
• Chapter "Dimension drawings"
has new contents for the "flush mounted diaphragm" topic
• Chapter "Appendix"
has new contents for the "Functional safety" topic

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 9

310674
Introduction
1.3 Scope of this manual

1.3 Scope of this manual

Table 1-1 "7MF4*33" stands for:

Order number SITRANS P, DS III series for

7MF4033 Gauge pressure
7MF4133 Gauge pressure, flush mounted diaphragm
7MF4233 Absolute pressure from the gauge pressure series
7MF4333 Absolute pressure from the differential pressure series
7MF4433 Differential pressure and flow rate, PN 32/160 (MWP 464/2320 psi)
7MF4533 Differential pressure and flow rate, PN 420 (MWP 6092 psi)
7MF4633 Level

1.4 Further information

Information
The contents of these instructions shall not become part of or modify any prior or existing
agreement, commitment or legal relationship. All obligations on the part of Siemens AG are
contained in the respective sales contract which also contains the complete and solely
applicable warranty conditions. Any statements contained herein do not create new
warranties or modify the existing warranty.
The content reflects the technical status at the time of printing. We reserve the right to make
technical changes in the course of further development.

Worldwide contact person

If you need more information or have particular problems which are not covered sufficiently
by the operating instructions, get in touch with your contact person. You can find contact
information for your local contact person in the Internet.

Product information on the Internet

The Programming Manual is an integral part of the companion CD, which may be ordered
separately. In addition, the Programming Manual is available on the Internet on the Siemens
homepage.
On the CD you will also find the technical data sheet containing the ordering data, the Device
Install software for SIMATIC PDM for subsequent installation and the required software.

See also
Contacts (http://www.siemens.com/processinstrumentation/contacts)
Product information on SITRANS P in the Internet (http://www.siemens.com/sitransp)
Instructions and Manuals (http://www.siemens.com/processinstrumentation/documentation)

SITRANS P, DS III series with HART communication

10 Operating Instructions, 12/2007, A5E00047092-06

310674
General safety notes 2
2.1 General information
This device left the factory free from safety problems. In order to maintain this status and to
ensure safe operation of the device, please observe the safety information and warnings
contained in these instructions.

See also
Safety-instrumented system (Page 129)

2.2 Correct usage

The device may only be used for the purposes specified in these instructions.
Insofar as they are not expressly stated in these instructions, all changes to the device are
the sole responsibility of the user.

2.3 Laws and directives

Observe the test certification, provisions and laws applicable in your country during
connection, assembly and operation.
For hazardous areas, these are for example:
● IEC 60079-14 (international)
● National Electrical Code (NEC - NFPA 70) (USA)
● Canadian Electrical Code (CEC) (Canada)
● EN 60079-14 (formerly VDE 0165, T1) (EU, Germany)
● The working reliability regulation (Germany)

2.4 Measures
For the sake of safety, the following precautions must be observed:

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 11

310674
General safety notes
2.4 Measures

WARNING
"Explosion-proof" type of protection
Devices with the "explosion-proof" type of protection may only be opened in the hazardous
area only in a de-energized state.

WARNING
"Intrinsically safe" protection type
"Intrinsically-safe" devices lose their certification as soon as they are operated on circuits
which do not correspond with the test certification valid in their country. The "ia" protection
level of the device is decreased to the "ib" protection level when intrinsically safe circuits
having the "ib" protection level are connected.

WARNING
Protection type "limited energy" nL (zone 2)
Devices with "limited energy" may be connected and disconnected while in operation.
Protection type "non-sparking" nA (zone 2)
Devices with "non-sparking" protection may only be connected and disconnected when off
circuit. Refer to the specifications on the examination certificate for exceptions to this
standard.

WARNING
Exposure to aggressive and hazardous media
The device can be operated both at high pressure and with aggressive and hazardous
media. Therefore, improper use of this device may lead to serious injury and or
considerable damage to property. Above all, it must be noted when the device was in use
and is to be exchanged.

CAUTION
Electrostatic Sensitive Devices (ESD)
This device contains electrostatic sensitive devices. Electrostatic sensitive devices may be
destroyed by voltages that are undetectable to a human. Voltages of this kind occur as
soon as a component or an assembly is touched by a person who is not grounded against
static electricity. The damage to a module as a result of overvoltage cannot usually be
detected immediately. It may only become apparent after a long period of operation.

SITRANS P, DS III series with HART communication

12 Operating Instructions, 12/2007, A5E00047092-06

310674
 General safety notes
2.5 Qualified Personnel

2.5 Qualified Personnel

Qualified personnel are people who are familiar with the installation, mounting,
commissioning, and operation of the product. These people have the following qualifications:
● They are authorized, trained or instructed in operating and maintaining devices and
systems according to the safety regulations for electrical circuits, high pressures and
aggressive as well as hazardous media.
● For explosion-proof devices: They are authorized, trained, or instructed in carrying out
work on electrical circuits for hazardous systems.
● They are trained or instructed in maintenance and use of appropriate safety equipment
according to the safety regulations.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 13

310674
General safety notes
2.5 Qualified Personnel

SITRANS P, DS III series with HART communication

14 Operating Instructions, 12/2007, A5E00047092-06

310674
Description 3
3.1 System configuration

Overview
The pressure transmitter can be used in a number of system configurations:
● as a stand-alone version, supplied with the necessary auxiliary power
● as part of a complex system environment, e.g. SIMATIC S7

System communication
Communication is via the HART protocol, using:
● HART communicator with at least 4 MB available memory
● PC with HART modem, on which appropriate software is available, e.g. SIMATIC PDM
● Control system which is able to communicate via the HART protocol, e.g. SIMATIC S7
with ET 200M

&RQWUROV\VWHP

6,0$7,&3'0
6
(70

RU

 $ 

 
/RDG
7UDQVPLWWHU $X[LOLDU\SRZHU

+$57 RU +$57
&RPPXQLFDWRU 0RGHP 3&ODSWRSZLWK
6,0$7,&3'0
56&

Figure 3-1 Possible system configurations

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 15

310674
Description
3.2 Application range

3.2 Application range

Overview
Depending on the version, a transmitter measures corrosive, non-corrosive and hazardous
gases, vapors and liquids.
It can be used for the following measurement types:
● Gauge pressure
● Absolute pressure
● Differential pressure
With appropriate parameterization, it can also be used for the following additional
measurement types:
● Level
● Volume
● Mass
● Volume of flow
● Mass flow rate
The output signal is always a load-independent direct current between 4 and 20 mA.
You can install the "intrinsically-safe" or "explosion-proof" version of the transmitter in
hazardous areas. The devices have an EC type examination certificate and comply with the
appropriate harmonized European CENELEC directives.
Transmitters with remote seals of different shapes can be delivered for special applications.
For example, measuring high-viscosity substances is a special application.

Gauge pressure
This version measures aggressive, non-aggressive and hazardous gases, vapors and
liquids.
The smallest measuring span is 0.01 bar g (0.145 psi g), and the largest 400 bar g
(5802 psi g).

Differential pressure and flow rate

This version measures corrosive, non-corrosive and hazardous gases, vapors and liquids.
You can use this version for the following measurement types:
● differential pressure, e.g. effective differential pressure
● small positive or negative overpressure
● in combination with a restrictor device: flow rate q ~ ∆p

The smallest measuring span is 1 mbar (0.0145 psi), the largest 30 bar (435 psi).

SITRANS P, DS III series with HART communication

16 Operating Instructions, 12/2007, A5E00047092-06

310674
 Description
3.3 Structure

Level
This version with mounting flange measures the level of non-corrosive, corrosive and
hazardous liquids in open and closed containers. The smallest measuring span is 25 mbar
(0.363 psi), the largest 5 bar (72.5 psi). The nominal diameter of the mounting flange is DN
80 or DN 100 or 3" or 4".
The negative connection of the measuring cell is kept open when measuring the level of
open containers. This measurement is referred to as "measurement against atmosphere".
The negative connection is normally connected with the container when measuring the level
of closed containers. This balances the static pressure.
Wetted parts are made of various materials, depending on corrosion resistance
requirements.

Absolute pressure
This version measures the absolute pressure of aggressive, non-aggressive and hazardous
gases, vapors and liquids.
There are two series: a "differential pressure" series and a "gauge pressure" series. The
"differential pressure" series is distinguished by a high overload capability.
The smallest measuring span of the "differential pressure" series is 8.3 mbar a (0.12 psi a),
and the largest is 100 bar a (1450 psi a).
The smallest measuring span of the "gauge pressure" series is 8.3 mbar a (0.12 psi a), and
the largest is 30 bar a (435 psi a).

3.3 Structure
Depending on a customer-specific order, the device comprises different parts.
The electronic housing is made of aluminum die casting or stainless steel precision casting.
The housing has a removable circular cover at the front and the back. Depending on the
device version, the front cover ④ is designed as an inspection window. You can directly read
the measured values on the digital display through this inspection window. The infeed ② for
the electrical terminal compartment is provided on either side, optionally at the right or the
left. The corresponding unused opening is closed with a blanking plug ⑨. The protective
conductor connection ⑪ is provided at the back of the housing.
The electrical terminal compartment for power supply and shield is accessible when you
remove the rear cover ⑩. The measuring cell with a process connection ⑧ is provided in the
lower section of the housing. This measuring cell is secured against twisting using a
retaining screw ⑦. Thanks to the modular structure of the transmitter, the measuring cell, the
electronic unit or the network card can be replaced if required.
A keyboard cover ③ is provided at the top of the housing. This cover can be opened. The
keypad is provided below this cover.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 17

310674
Description
3.4 Structure of the type plate and approval plate



 (OHFWULFDO

WHUPLQDO
FRPSDUWPHQW
 


 
 

Figure 3-2 Device view of the transmitter

① Type plate
② Infeed with a cable gland
③ Keyboard cover for accessing the buttons
④ Removable cover, optionally with an inspection window
⑤ Digital display
⑥ Measuring point label
⑦ Retaining screw
⑧ Process connection
⑨ Blanking plug
⑩ Removable cover for accessing the electrical terminal compartment
⑪ Protective conductor connection
⑫ Alternative measuring point label
⑬ Approval plate

See also
Safety notes for installation (Page 29)

3.4 Structure of the type plate and approval plate

Structure of the type plate

The type plate which bears the order number and other important information such as design
or technical data is provided at the side of the housing.

SITRANS P, DS III series with HART communication

18 Operating Instructions, 12/2007, A5E00047092-06

310674
 Description
3.4 Structure of the type plate and approval plate

D-761 81 K arlsr uhe

SITRANS P 0 032
PED:SEP
Tr ansmit ter fo r pressur e
7MF4033-1EB1 0-1D A1 

Fab. Nr. N1LN1 1-0 047 11 

V H :DC1 0.5-45 V (not intr.s ave ) outp.:4-20 mA

Mat.: Connec. Diaphr. F illing
1.4404 2.481 9 Silik onöl

Measuring span : 0.6 3 - 6 3 bar

Ove rrange limits : -1 - 100 bar
Type of protection IP 65
Made in Fr ance

Figure 3-3 Example of a type plate

① Order number (machine-readable product code)

② Serial number

Structure of the approval plate

The approval plate is provided on the opposite side. The approval plate has information
about the version of the hardware and firmware.

D-761 81 K arlsr uhe

SITRANS P
II 1/2 G EE x d IIC T4/T6

V H :DC 10. 5 - 4 5 V outp.: 4 - 2 0 m A

PTB 99 ATEX 1160

Observ e EC-T ype Examination Cer tificate !

T a = -40 ... 85/60 °C

FW : 1 3.0 1.02 HW : 01.02.03

):[[\\]] +:[[\\]]

&RPSDWLELOLW\PDUN
3URGXFWYHUVLRQFRQQHFWLRQERDUG
6HULDOQXPEHU
):YHUVLRQ
'RFXPHQW5HYLVLRQ
'HYLFHW\SH

Figure 3-4 Example of an approval plate

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 19

310674
Description
3.5 Functional principle

3.5 Functional principle

3.5.1 Overview of mode of operation

This chapter describes how the transmitter works.
First the electronics are described, then the physical principle of the sensors which are used
with the various device versions for the individual measurement types.

3.5.2 Operation of the electronics

Description




  
 
$ ' ,$
&
' $ 8+

 +$57PRGHP


((3520
((3520

6HQVRU (OHFWU
&HOO

Figure 3-5 Operation of the electronics with HART communication

① Measuring cell sensor

② Measuring amplifier
③ Analog-to-digital converter
④ Microcontroller
⑤ Digital-to-analog converter
⑥ Each with an EEPROM in the measuring cell and in the electronics
⑦ HART modem
⑧ Buttons (local operation)
⑨ Digital display
⑩ Connection for external ammeter
IA Output current
UH Auxiliary power

SITRANS P, DS III series with HART communication

20 Operating Instructions, 12/2007, A5E00047092-06

310674
 Description
3.5 Functional principle

The input pressure is converted into an electrical signal by the sensor ①. This signal is
amplified by the measuring amplifier ② and digitized in an analog-to-digital converter ③. The
digital signal is analyzed in a microcontroller ④ and corrected with regard to linearity and
thermal characteristics. It is then converted in a digital-to-analog converter ⑤ to the output
current of 4 to 20 mA. A diode circuit provides reverse voltage protection. You can make an
uninterrupted current measurement with a low resistance ammeter at the connection ⑩. The
data specific to the measuring cell, the electronic data and parameterization data are stored
in two EEPROMs ⑥. The first memory is linked with the measuring cell, the second with the
electronics.
The buttons ⑧ can be used to call up individual functions, so-called modes. If you have a
device with a digital display ⑨, you can track the mode settings and other messages on it.
The basic mode settings can be changed with a computer via the HART modem ⑦.

3.5.3 Measuring cell operation

CAUTION
If the measurement signal fails because of sensor breakage, the separating diaphragm may
also be destroyed. In the worst case scenario, the process medium leaks from the
reference pressure opening in the devices used for gauge pressure with a measuring span
of ≤ 63 bar.

In the following sections, the process variable to be measured is called general input
pressure.

Overview
The following modes of operation are described:
● Gauge pressure
● Absolute pressure
● Differential pressure and flow rate
● Level
The following process connections are available, for example:
● G½, ½-14 NPT
● EN61518 compliant flanged connection
● Flush mounted diaphragm

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 21

310674
Description
3.5 Functional principle

3.5.3.1 Measuring cell for gauge pressure







SH

Figure 3-6 Function chart of measuring cell for gauge pressure

① Reference pressure opening

② Measuring cell
③ Process connection
④ Separating diaphragm
⑤ Fill liquid
⑥ Gauge pressure sensor
pe Input pressure
The input pressure (pe) is transferred to the gauge pressure sensor ⑥ via the separating
diaphragm ④ and the fill fluid ⑤, displacing its measuring diaphragm. The displacement
changes the resistance value of the four piezo resistors in the measuring diaphragm in a
bridge circuit. The change in the resistance causes a bridge output voltage proportional to
the input pressure.
Transmitters with measuring span ≤ 63 bar measure the input pressure against atmosphere,
those with spans ≥ 160 bar against vacuum.

SITRANS P, DS III series with HART communication

22 Operating Instructions, 12/2007, A5E00047092-06

310674
 Description
3.5 Functional principle

3.5.3.2 Measuring cell for differential pressure and flow rate

 
 




   

Figure 3-7 Function chart of the measuring cell for differential pressure and flow rate

① Input pressure P+
② Pressure cap
③ O-ring
④ Measuring cell body
⑤ Silicon pressure sensor
⑥ Overload diaphragm
⑦ Fill liquid
⑧ Separating diaphragm
⑨ Input pressure P-
Differential pressure is transmitted to the silicon pressure sensor ⑤ through the separating
diaphragms ⑦ and the fill fluid ⑧. When measuring limits are exceeded, the overload
diaphragm ⑥ is displaced until one of the separating diaphragms ⑦ rests on the measuring
cell body ④. The separating diaphragm thus protects the silicon pressure sensor ⑤ from
overload. The measuring diaphragm is displaced using differential pressure. The
displacement changes the resistance value of the four piezo resistors in the measuring
diaphragm in a bridge circuit. The change in the resistance causes a bridge output voltage
proportional to the differential pressure.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 23

310674
Description
3.5 Functional principle

3.5.3.3 Measuring cell for level

    


 

Figure 3-8 Function chart of the measuring cell for level

① Pressure cap
② O-ring
③ Measuring cell body
④ Overload diaphragm
⑤ Silicon pressure sensor
⑥ Separating diaphragm on the measuring cell
⑦ Fill liquid of the measuring cell
⑧ Capillary tube with the fill fluid of the mounting flange
⑨ Flange with a tube
⑩ Separating diaphragm on the mounting flange
The input pressure (hydrostatic pressure) works hydraulically on the measuring cell through
the separating diaphragm ⑩ on the mounting flange. Differential pressure at the measuring
cell is transmitted to the silicon pressure sensor ⑤ through the separating diaphragms ⑥
and the fill fluid ⑦. When measuring limits are exceeded, the overload diaphragm ④ is
displaced until one of the separating diaphragms ⑥ rests on the measuring cell body ③. The
separating diaphragm thus protects the silicon pressure sensor ⑤ from overload. The
measuring diaphragm is displaced using differential pressure. The displacement changes the
resistance value of the four piezo resistors in the measuring diaphragm in a bridge circuit.
The change in the resistance causes a bridge output voltage proportional to the differential
pressure.

SITRANS P, DS III series with HART communication

24 Operating Instructions, 12/2007, A5E00047092-06

310674
 Description
3.5 Functional principle

3.5.3.4 Measuring cell for absolute pressure from the differential pressure series

 SH



   

Figure 3-9 Function chart of measuring cell for absolute pressure

① Pressure cap
② Separating diaphragm on the measuring cell
③ O-ring
④ Measuring cell body
⑤ Silicon pressure sensor
⑥ Overload diaphragm
⑦ Fill liquid of the measuring cell
⑧ Reference pressure
pe Pressure input variable
Absolute pressure is transmitted to the silicon pressure sensor ⑤ through the separating
diaphragm ② and the fill fluid ⑦. When measuring limits are exceeded, the overload
diaphragm ⑥ is displaced until the separating diaphragm ② rests on the measuring cell
body ④. The separating diaphragm thus protects the silicon pressure sensor ⑤ from
overload. The pressure difference between the input pressure (pe) and the reference
pressure ⑧ on the negative side of the measuring cell displaces the measuring diaphragm.
The displacement changes the resistance value of the four piezo resistors in the measuring
diaphragm in a bridge circuit. The change in the resistance causes a bridge output voltage
proportional to the absolute pressure.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 25

310674
Description
3.5 Functional principle

3.5.3.5 Measuring cell for absolute pressure from the gauge pressure series

 



SH

Figure 3-10 Function chart of measuring cell for absolute pressure

① Measuring cell
② Process connection
③ Separating diaphragm
④ Fill liquid
⑤ Absolute pressure sensor
pe Input pressure
The input pressure (pe) is transferred to the absolute pressure sensor ⑤ via the separating
diaphragm ③ and the fill fluid ④, displacing its measuring diaphragm. The displacement
changes the resistance value of the four piezo resistors in the measuring diaphragm in a
bridge circuit. The change in the resistance causes a bridge output voltage proportional to
the input pressure.

3.5.3.6 Measuring cell for gauge pressure, front-flush membrane




SH 

Figure 3-11 Function chart of the measuring cell for gauge pressure, flush mounted diaphragm

① Reference pressure opening

② Measuring cell
③ Process connection
④ Separating diaphragm

SITRANS P, DS III series with HART communication

26 Operating Instructions, 12/2007, A5E00047092-06

310674
 Description
3.5 Functional principle

⑤ Fill liquid
⑥ Gauge pressure sensor
pe Input pressure
The input pressure (pe) is transferred to the gauge pressure sensor ⑥ via the separating
diaphragm ④ and the fill fluid ⑤, displacing its measuring diaphragm. The displacement
changes the resistance value of the four piezo resistors in the measuring diaphragm in a
bridge circuit. The change in the resistance causes a bridge output voltage proportional to
the input pressure.
Transmitters with measuring span ≤ 63 bar measure the input pressure against atmosphere,
those with measuring spans ≥ 160 bar against vacuum.

3.5.3.7 Measuring cell for absolute pressure, front-flush membrane






SH 

Figure 3-12 Function chart of the measuring cell for absolute pressure, flush mounted diaphragm

① Measuring cell
② Process connection
③ Separating diaphragm
④ Fill liquid
⑤ Absolute pressure sensor
pe Input pressure
The input pressure (pe) is transferred to the absolute pressure sensor ⑤ via the separating
diaphragm ③ and the fill fluid ④, displacing its measuring diaphragm. The displacement
changes the resistance value of the four piezo resistors in the measuring diaphragm in a
bridge circuit. The change in the resistance causes a bridge output voltage proportional to
the input pressure.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 27

310674
Description
3.6 Remote seal

3.6 Remote seal

Product description
A remote seal measuring system comprises the following elements:
● Remote seal
● Transmission line, e.g. capillary line
● Measuring device
Do not separate these components under any circumstance. The measuring system based
on a hydraulic principle is used to transfer pressure. The capillary line and the remote
separating diaphragm are the most sensitive components in the remote seal measuring
system. The material thickness of the remote separating diaphragm is only ~0.1 mm. The
smallest of leakages in the transmission system leads to the loss of transmission fluid. The
loss of transmission fluid leads to inaccuracies in the measurement and the failure of the
measuring system. In order to avoid leakages and measuring errors, please observe the
following general installation and maintenance instructions in addition to the safety notes.

3.7 SIMATIC PDM

SIMATIC PDM is a software package for the configuration, paramaterization, commissioning,
diagnostics, and servicing of the device and other process devices.
SIMATIC PDM includes simple process monitoring of process values, alarms, and device
status information.
Using SIMATIC PDM, you can do the following with process device data:
● display
● set
● change
● compare
● check for plausibility
● administer
● simulate

SITRANS P, DS III series with HART communication

28 Operating Instructions, 12/2007, A5E00047092-06

310674
Install 4
4.1 Safety notes for installation

Condition
You can install the transmitter in different areas of application.
Depending on the area of application and the system configuration, there may be differences
in the installation.

WARNING
Protection against incorrect use of the measuring device
Take particular care to ensure that the selected materials for the wetted parts are suitable
for the process media used.
Ignoring these safety measures may cause bodily and life-threatening injury and be harmful
to the environment.

WARNING
"explosion-proof" type of protection
Devices with the "explosion-proof" type of protection may only be opened in the hazardous
area only in a de-energized state.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 29

310674
Install
4.1 Safety notes for installation

WARNING
"Intrinsically-safe" protection type
Information for operating the intrinsically-safe version in hazardous areas:
Operation is only permissible in certified intrinsically-safe circuits. The transmitter
corresponds to category 1/2 and may be installed in Zone 0.
The EC-type examination certificate applies to installation of the device in the walls of
containers and pipes in which explosive gas/air or vapor/air mixtures occur only under
atmospheric conditions (pressure: 0.8 bar to 1.1 bar; temperature: -20 °C to +60 °C). The
permissible range of ambient temperature is -40 °C to +85 °C; -40 °C to a maximum of
+85 °C (at T4) in hazardous areas.
The operator may use the device under non-atmospheric conditions outside the limits
specified in the EC-type examination certificate (or the certification applicable in the country
of use) at the operator's own risk if safety measures which may be necessary in
accordance with use conditions (explosive mixture) have been taken. The limit values
specified in the general technical data are to be complied with in all cases.
Additional information for zone 0
Additional requirements apply for installation in zone 0:
The installation must be sufficiently tight (IP67 according to EN 60 529). For instance, an
industry standard (e.g. DIN, NPT) threaded connector is suitable.
When operating intrinsically safe supply units of category "ib" or in the case of device
version flameproof enclosure "Ex d" and simultaneous use in zone 0, the protection against
explosion of the transmitter depends on the tightness of the sensor diaphragm. Under these
operating conditions, the transmitter may only be used for such combustible gases and
liquids for which diaphragms are sufficiently resistant to chemicals and corrosion.

CAUTION
Touch protection is required for surface temperatures > 70 °C.
The touch protection must be designed in such a way that, if there is a buildup of heat, the
maximum permissible ambient temperature at the device is not exceeded.
The permissible ambient temperature can be found in the technical data.

CAUTION
The device may only be used within the measuring spans, overload pressure limits and
voltage limits dependent on the protection type specified on the type plate.

NOTICE
Install the device such that automatic emptying is ensured.
For example, do not install the device at the bottom of the tank, instead of its side.
External loads may not be allowed to affect the transmitter as this may result in an incorrect
measured value or even destruction of the device. In the worst case scenario, the process
medium will escape.

SITRANS P, DS III series with HART communication

30 Operating Instructions, 12/2007, A5E00047092-06

310674
 Install
4.2 Installation (except level)

4.2 Installation (except level)

4.2.1 Instructions for installation (except level)

Conditions

NOTICE
Compare the desired operating data with the data on the type plate.

NOTICE
The housing may only be opened for maintenance or to make electrical connections.

Note
Protect the transmitter against:
• Direct heat radiation
• Rapid temperature fluctuations
• Heavy contamination
• Mechanical damage

The installation location is to be as follows:

● Easily accessible
● As close as possible to the measuring point
● Vibration-free
● Within the permitted ambient temperature values

Installation configuration
The transmitter may in principle be configured above or below the pressure tapping point.
The recommended configuration depends on the medium.

Installation configuration for gases

Install the transmitter above the pressure tapping point.
Lay the pressure tubing with a constant gradient to the pressure tapping point, so that any
condensate produced can drain in the main line and thereby avoid corruption of the
measured values.

Installation configuration for vapor and liquid

Install the transmitter below the pressure tapping point.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 31

310674
Install
4.2 Installation (except level)

Lay the pressure tubing with a constant gradient to the pressure tapping point so that any
gas pockets can escape in the main line.

4.2.2 Installation (except level)

NOTICE
When installing the process connection of the pressure transmitter, do not turn it on the
housing.

Procedure
To install the transmitter for pressure or absolute pressure, proceed as follows:
Attach the transmitter to the process connection with an appropriate tool.

See also
Introduction to commissioning (Page 136)

4.2.3 Fastening

Fastening without the mounting bracket

You can fasten the transmitter directly on the process connection.

Fastening with the mounting bracket

You can fasten the mounting bracket as follows:
● On a wall or a mounting frame using two screws
● On a vertical or horizontal mounting tube (Ø 50 to 60 mm) using a tube bracket
Fasten the transmitter mounting bracket using the two screws provided.

SITRANS P, DS III series with HART communication

32 Operating Instructions, 12/2007, A5E00047092-06

310674
 Install
4.2 Installation (except level)

Figure 4-1 Fastening the transmitter on the mounting bracket

Figure 4-2 An example of fastening the transmitter on the mounting bracket in the case of
differential pressure and horizontal differential pressure lines

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 33

310674
Install
4.3 "Level" installation

Figure 4-3 An example of fastening on the mounting bracket in the case of differential pressure and vertical differential
pressure lines

4.3 "Level" installation

4.3.1 Instructions for level installation

Conditions

NOTICE
Compare the desired operating data with the data on the type plate.

NOTICE
The housing may only be opened for maintenance or to make electrical connections.

Note
Protect the transmitter against:
• Direct heat radiation
• Rapid temperature fluctuations
• Heavy contamination
• Mechanical damage

SITRANS P, DS III series with HART communication

34 Operating Instructions, 12/2007, A5E00047092-06

310674
 Install
4.3 "Level" installation

Note
Select the height of the container flange for recording of the transmitter (measuring point)
such that the lowest level to be measured is always over the flange or at its upper edge.

The installation location is to be as follows:

● Easily accessible
● The measuring point must be as close as possible
● Vibration-free
● Within the permitted ambient temperature values

4.3.2 Installation for level

Note
Seals are required for the installation.
Seals are not included in the delivery.

Procedure
To install the transmitter for level, proceed as follows:
1. Attach the seal to the container's mating flange.
Ensure that the seal is centrically positioned and that it does not restrict the movement of
the flange's seal diaphragm in any way as otherwise the tightness of the process
connection is not guaranteed.
2. Screw on the transmitter's flange.
3. Observe the installation position.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 35

310674
Install
4.3 "Level" installation

4.3.3 Connection of the negative pressure line

Measurement in an open container

A line is not required when taking measurements in an open container since the negative
chamber is connected with the atmosphere. The open connection gland should point
downwards to prevent dirt from entering.

Formula:
)XOOVFDOHYDOXH
Start of scale value:
pMA = ρ · g · hU
Full scale value:
pME = ρ · g · hO
K2
6WDUWRIVFDOHYDOXH

K8

Measurement assembly on an open container

hU Start of scale value ΔpMA Start of scale value to be adjusted

hO Full scale value ΔpME Full scale value to be adjusted
p Pressure ρ Density of the measured medium in the
container
g Local gravitational acceleration

SITRANS P, DS III series with HART communication

36 Operating Instructions, 12/2007, A5E00047092-06

310674
 Install
4.3 "Level" installation

Measurement in a closed container

When taking measurements in a closed container without or with little condensate formation,
the negative pressure line is not filled. Lay the line such that condensate pockets do not
form. Install a condensation container if required.

6WDWLF Formula:
3UHVVXUH
JDVILOOHGQHJDWLYH Start of scale value:
SUHVVXUHOLQH
ΔpMA = ρ · g · hU
0D[LPXPOHYHO Full scale value:
ΔpME = ρ · g · hO
)XOOVFDOHYDOXH

6WDUWRIVFDOHYDOXH
K2

K8

7UDQVPLWWHU
UHIHUHQFHOLQH

Measurement assembly on a closed container (no or

little condensate separation)

hU Start of scale value ΔpMA Start of scale value to be adjusted

hO Full scale value ΔpME Full scale value to be adjusted
p Pressure ρ Density of the measured medium in the
container
g Local gravitational acceleration

When taking measurements in a closed container with strong condensate formation, you
must fill the negative pressure line (mostly with the condensate of the measured medium)
and install a condensate pot. You can cut off the device using the dual pneumatic block
7MF9001-2.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 37

310674
Install
4.4 "Remote seal" installation

6WDWLF Formula:
3UHVVXUH FRQVWDQW
FRPSDULVRQ Start of scale value:
OHYHO ΔpMA = g · (hU · ρ- hV · ρ')
0D[LPXPOHYHO Full scale value:
ΔpMA = g · (hO · ρ- hV · ρ')
OLTXLGILOOHG
)XOOVFDOHYDOXH QHJDWLYHSUHVVXUHOLQH

6WDUWRIVFDOHYDOXH K
'
K2

K8

7UDQVPLWWHU -
UHIHUHQFHOLQH

Measurement assembly on a closed container (strong

condensate formation)

hU Start of scale value ΔpMA Start of scale value to be adjusted

hO Full scale value ΔpME Full scale value to be adjusted
hV Gland distance ρ Density of the measured medium in the
container
p Pressure Ρ' Density of fluid in the negative pressure
line, corresponds to the temperature
prevailing there
g Local gravitational acceleration

The process connection on the negative side is a female thread 1/4-18 NPT or an oval flange.
Lay the line for the negative pressure using a seamless steel tube 12 mm x 1.5 mm.

4.4 "Remote seal" installation

4.4.1 Remote seal installation

General installation instructions

● Keep the measuring system in the factory packing until it is installed in order to protect it
from mechanical damage.
● When removing from the factory packing and installing: ensure that damage to and
mechanical deformations in the diaphragm are prevented.

SITRANS P, DS III series with HART communication

38 Operating Instructions, 12/2007, A5E00047092-06

310674
 Install
4.4 "Remote seal" installation

● Never loosen the sealed filling screws on the remote seal and the measuring device.
● Do not cause damage to the remote separating diaphragm; scratches on the remote
separating diaphragm, e.g. due to sharp-edged objects, are the main starting points for
corrosion.
● Select suitable gaskets for sealing.
● Use a gasket having an adequately large inner diameter for flanging. Insert the gasket
concentrically; contact with the diaphragm leads to deviations in measurements.
● When using gaskets made of soft materials or PTFE: follow the guidelines of the gasket
manufacturer, especially regarding the tightening torque and setting cycles.
● At the time of installation, use suitable fastening components such as screws and nuts
that are compliant with fitting and flange standards.
● Excessive tightening of screwed joints on the process connection may displace the zero
point on the pressure transmitter.

Note: Commissioning
Follow the instruction given below if a shut-off valve exists: Open the shut-off valve slowly
when commissioning in order to avoid pressure surges.

Note:
permissible ambient and operating temperatures
Install the pressure measuring device such that the permissible limits of ambient and
measured medium temperatures are not overshot or undershot even with the consideration
of the effect of convection and heat radiation. Pay attention to the effect of temperature on
the accuracy of display. When selecting the remote seals, ensure that fittings and flange
components have adequate pressure-temperature resistance by selecting suitable materials
and pressure ratings. The pressure rating specified on the remote seal is applicable for
ambient temperatures. For the maximum permissible pressure at higher temperatures,
please refer to the standard specified on the remote seal.

Using remote seals with pressure measuring devices for hazardous areas:
● When using remote seals with pressure measuring devices for hazardous areas, the
permissible limits of ambient temperatures for the transmitter should not be exceeded.
Hot surfaces on the cooling section (capillaries or cooling elements) are a possible
source of ignition. Initiate suitable measures.
● When remote seals with a flame arrester are used, the pressure measuring device
determines the permissible ambient temperature. In the case of potentially explosive
gaseous atmosphere, the temperature around the flame arrester should not exceed
+60 °C.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 39

310674
Install
4.4 "Remote seal" installation

4.4.2 Installation of the remote seal with the capillary line

Notes
● Do not rest the measurement assembly on the capillary line.
● Do not bend capillary lines; risk of leakages and/or risk of considerable increase in the
setting time of the measuring system.
● Owing to the risk of bending and breakages, pay attention to mechanical overloads at the
joints such as capillary line-remote seal and capillary line-measuring device.
● Unwinding the excess capillary lines with a radius of at least 150 mm.
● Fasten the capillary line such that there are no vibrations.
● Permissible height differences
When installing the pressure measuring device above the measuring point, keep the
following in mind: in the case of remote seal measuring systems with silicon, glycerin or
paraffin oil filling, the height difference of H1should not exceed a maximum of 7 m.
If halocarbon oil is used as a fill fluid, this maximum height difference should be H1 4 m
(see installation types A and B).
If negative overpressure is observed during measurements, reduce the permissible height
difference accordingly.

Installation type for gauge pressure and level measurements (open containers)

Installation type A
Start of scale value:
pMA = ρFL * g * HU + ρoil * g * H1
+
+R Full scale value:
pME = ρFL * g * HO + ρoil * g * H1
+X +

Pressure transmitter above the

measuring point

SITRANS P, DS III series with HART communication

40 Operating Instructions, 12/2007, A5E00047092-06

310674
 Install
4.4 "Remote seal" installation

Installation type B
Start of scale value:
pMA = ρFL * g * HU - ρoil * g * H1
+
+R Full scale value:
pME = ρFL * g * HO - ρoil * g * H1
+X

+

Pressure transmitter below the

measuring point

H1 ≤ 7 m (23 ft), for halocarbon oil, however only H1 ≤ 4 m(13.1 ft)

Legend
pMA Start of scale value to be adjusted
pME Full scale value to be adjusted
ρFL Density of the measured medium in the container
ρoil Density of the filling oil in the capillary line of the remote seal
g Local gravitational acceleration
HU Start of scale value
HO Full scale value
H1 Distance between the container flange and the pressure transmitter
For absolute pressure measurements (vacuum), install the measuring device at least at the
height of the remote seal or below it (see installation types C).

Installation types for absolute pressure measurements (closed containers)

Installation type C1
Start of scale value:
pMA = pstart + ρoil * g * H1
+ Full scale value:
pME = pend + ρoil * g * H1

SDEV

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 41

310674
Install
4.4 "Remote seal" installation

Installation type C2

SDEV

+

Pressure transmitter for absolute pressure always below the measuring point: H1 ≥ 200 mm
(7.9 inch)

Legend
pMA Start of scale value to be adjusted
pME Full scale value to be adjusted
pstart Start of scale value
pend Full scale value
ρoil Density of the filling oil in the capillary line of the remote seal
g Local gravitational acceleration
H1 Distance between the container flange and the pressure transmitter

Note
Effects of temperature
Keep the following instructions in mind in order to minimize keep the effects of temperature
in remote seal measuring systems with the differential pressure measuring device:
Install the device such that the positive and negative sides are symmetrical as far as ambient
effects, especially ambient temperatures, are concerned.

SITRANS P, DS III series with HART communication

42 Operating Instructions, 12/2007, A5E00047092-06

310674
 Install
4.4 "Remote seal" installation

Installation type for differential pressure and flow rate measurements

Installation type D
Start of scale value:
pMA = pstart - ρoil * g * HV
Full scale value:
+ +9 pME = pend - ρoil * g * HV

+

Legend
pMA Start of scale value to be adjusted
pME Full scale value to be adjusted
pstart Start of scale value
pend Full scale value
ρoil Density of the filling oil in the capillary line of the remote seal
g Local gravitational acceleration
HV Gland distance

Installation types for level measurements (closed containers)

Installation type E
Start of scale value:
pMA = ρFL * g * HU - ρoil * g * HV
Full scale value:
pME = ρFL * g * HU - ρoil * g * HV
+
+9
+2

+8

Legend
pMA Start of scale value to be adjusted
pME Full scale value to be adjusted

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 43

310674
Install
4.4 "Remote seal" installation

ρFL Density of the measured medium in the container

ρoil Density of the filling oil in the capillary line of the remote seal
g Local gravitational acceleration
HU Start of scale value
HO Full scale value
HV Gland distance

Installation type G
H1 ≤ 7 m (23 ft), for halocarbon oil, however only
H1 ≤ 4 m(13.1 ft)
+
Start of scale value:
pMA = ρFL * g * HU - ρoil * g * HV
Full scale value:
+ pME = ρFL * g * HO - ρoil * g * HV
+
+9
+R

+X

Pressure transmitter for differential

pressure above the upper
measuring point, no vacuum
Installation type H
Start of scale value:
pMA = ρFL * g * HU - ρoil * g * HV
Full scale value:
pME = ρFL * g * HO - ρoil * g * HV
+

+

Below the lower measuring point

SITRANS P, DS III series with HART communication

44 Operating Instructions, 12/2007, A5E00047092-06

310674
 Install
4.4 "Remote seal" installation

Installation type J
H2 ≤ 7 m (23 ft), for halocarbon oil, however only
H1 ≤ 4 m(13.1 ft)
+
Start of scale value:
pMA = ρFL * g * HU - ρoil * g * HV
Full scale value:
+
pME = ρFL * g * HO - ρoil * g * HV

Between the measuring points, no

vacuum

Legend
pMA Start of scale value to be adjusted
pME Full scale value to be adjusted
ρFL Density of the measured medium in the container
ρoil Density of the filling oil in the capillary line of the remote seal
g Local gravitational acceleration
HU Start of scale value
HO Full scale value
HV Gland distance

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 45

310674
Install
4.5 Turing the measuring cell against housing

4.5 Turing the measuring cell against housing

Description
You can turn the measuring cell against the housing. Turning simplifies the transmitter
operation in the case of an angled installation environment. The buttons and the current
connection can thus also be operated for an external measuring device. The digital display
also remains visible in the case of housing covers with an inspection window.
Only limited turning is permissible! The turning range ① is marked at the foot of the
electronic housing. An orientation mark ③ is provided at the throat of the measuring cell.
This mark must remain in the marked section when turning.

Figure 4-4 Example: turning range of transmitters for pressure and absolute pressure from the
gauge pressure series

① Turning range
② Retaining screw
③ Orientation mark
The turning range for transmitters for differential pressure and flow rate, absolute pressure
from the differential pressure series and level is identified in a similar manner.

Procedure

CAUTION
Follow the turning range, otherwise electrical connections of the measuring cell may get
damaged.

1. Loosen the retaining screw ② (Allen screw 2.5 mm).

2. Turn the electronic housing against the measuring cell. Follow the marked turning range
① while doing so.
3. Tighten the retaining screw (torque: 3.4 to 3.6 Nm).

SITRANS P, DS III series with HART communication

46 Operating Instructions, 12/2007, A5E00047092-06

310674
 Install
4.6 Turning the digital display

4.6 Turning the digital display

Description
You can rotate the digital display in the electronic housing. You can then read the digital
display better when the device is not operated in a vertical installation position.

Procedure

WARNING
"Explosion-proof" type of protection
Devices with the "explosion-proof" type of protection may only be opened in the hazardous
area only in a de-energized state.

Proceed as follows:
1. Unscrew the housing cover of the electronic compartment.
2. Unscrew the digital display. Depending on the application position of the transmitter, you
can reinstall it at four different positions. You can turn it by ±90° or ±180°.
3. Screw the housing cover back into place.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 47

310674
Install
4.6 Turning the digital display

SITRANS P, DS III series with HART communication

48 Operating Instructions, 12/2007, A5E00047092-06

310674
Connecting 5
5.1 Safety notes for connection

WARNING
Laying of cables
Connect the devices that are operated in hazardous areas as per the stipulations applicable
in your country, e.g. for Ex "d" and "nA", permanent cables must be laid.

WARNING
Cable glands
If you use the provided cable glands M20x1.5 and ½-14" NPT, only the cables having a
diameter of 6 to 12 mm must be laid into the device.
"nA" type of protection
In the case of devices with "nA" type of protection (zone 2), only use cables having a
diameter of 8 to 12 mm owing to the required tensile strength, or use a suitable cable gland
in case of smaller diameters.

WARNING
When connecting and installing, follow only the test certifications, stipulations and laws
applicable in your country.
For example, for hazardous areas these are:
• IEC 60079-14 (international)
• National Electrical Code (NEC - NFPA 70) (USA)
• Canadian Electrical Code (CEC) (Canada)
• EN 60079-14 (earlier VDE 0165, T1) (EU, Germany)
• Ordinance on Industrial Safety and Health (Germany)

WARNING
If auxiliary power is required, check that it corresponds with that on the type plate and with
the test certification valid for your country.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 49

310674
Connecting
5.2 Connecting the device

WARNING
Replace the sealing caps in cable entries with suitable cable glands or blanking plugs that
are certified for transmitters of the "explosion-proof" type of protection.

Note
To improve the reliability:
• Install the signal cable separately from cables with voltages > 60 V.
• Use cable with twisted strands.
• Stay away from large electrical systems.
• Use shielded cable to guarantee the full specification according to HART.
• Connect a load of at least 230 ohm into the signal circuit in sequence in order to
guarantee fault-free HART communication. When using supply isolation for SMART
transmitters, for example: Siemens 7NG4021 a load is already installed in the device.

5.2 Connecting the device

Procedure
To connect the device, proceed as follows:
1. Unscrew the cover of the electrical cable compartment.
An identification text "FIELD TERMINAL" is provided at the side of the housing.
2. Insert the connecting cable through the cable gland.
3. Connect the wires to the connecting terminals "+" and "-".
Observe the polarity when doing this.
4. Place a shield on the shield support screw if required. This is electrically connected with
the external protective conductor connection.
5. Screw the cover back into place.

WARNING
In the case of transmitters with the "explosion-proof" type of protection, screw the
housing cover firmly and secure it with a cover latch.

SITRANS P, DS III series with HART communication

50 Operating Instructions, 12/2007, A5E00047092-06

310674
 Connecting
5.2 Connecting the device



˖

Figure 5-1 Schematic electrical connection

① Feed separator with integrated load

② Auxiliary power
③ Cable entry for auxiliary power/analog output
④ Connecting terminals
⑤ Test connector for direct current measuring device or connection for external display
⑥ Shield support
⑦ Protective conductor connection/equipotential bonding terminal
⑧ Cable entry for sensor signals

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 51

310674
Connecting
5.3 Connecting the Han plug

5.3 Connecting the Han plug

Introduction
The contact parts for the coupling socket are also supplied.

Procedure
To connect the plug, proceed as follows:
1. Slide the sleeve and the screwed joint on the cable.
2. Strip approx. 8 mm of the cable ends.
3. Crimp the contact parts on the cable ends.
4. Assemble the coupling socket.

IA Output current
 
UH Auxiliary power
  

 

,$
 
8+

Connector pin assignment with

Han 7D or Han 8U plug

5.4 Connecting the M12 connector

Procedure

CAUTION
A conductive connection should not exist between the shield and the connector housing.

For devices in which a connector is already assembled on the housing, the connection is
established using a jack coupling.
1. Thread the parts of the jack coupling as described by the connector manufacturer.
2. Strip approximately 18 mm of the bus cable ①.
3. Twist the shield.
4. Thread the shield in the insulating sleeve.
5. Draw 8 mm of shrink sleeve over the cable, wires and shield up to the reference edge ②.

SITRANS P, DS III series with HART communication

52 Operating Instructions, 12/2007, A5E00047092-06

310674
 Connecting
5.4 Connecting the M12 connector

6. Screw the cable ends and the shield in the pin insert.
7. Fix the parts of the jack coupling as described by the connector manufacturer.

 



 




Figure 5-2 Preparing the fieldbus cable

① Reference edge for stripping ③ Insulating sleeve over the shield

② Reference edge for the dimension ④ Shrink sleeve
specifications for cable assembly

Pin assignment


   

   

 

Layout for M12 connector Layout for M12 jack

① M12 x 1 thread ① Positioning slot

② Positioning catch
1 + 1 +
2 Not connected 2 Not connected
3 - 3 -
4 Shield 4 Shield
Middle jack not assembled

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 53

310674
Connecting
5.4 Connecting the M12 connector

SITRANS P, DS III series with HART communication

54 Operating Instructions, 12/2007, A5E00047092-06

310674
Operation 6
6.1 Overview of operation

Introduction
The following description contains an overview of the operating functions that you can
execute using the pressure transmitter, and the safety notes that are to be observed when
doing so. You can operate the transmitter on-site through HART communication. First, the
on-site operation and then, the operating functions using HART are described.

Contents of the chapter

● Safety information for operation (Page 56)
● Instructions for operation (Page 56)
● Digital display (Page 57)
● Local operation (Page 63)

Overview of operating functions

You can configure basic settings of the pressure transmitter using the buttons on the device.
You can configure all settings through HART communication.
The following table describes the basic operating functions. More operating functions for
special applications are accessible through HART. Basic variables of the device are marked
in bold.

Table 6-1 Operating functions

Function Using buttons Using HART

Start of scale value Yes Yes
Full scale value Yes Yes
Electrical damping Yes Yes
Blind adjustment of the start of scale Yes Yes
value
Blind adjustment of the full scale value Yes Yes
Zero point calibration (position Yes Yes
correction)
Current transmitter Yes Yes
Fault current Yes Yes

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 55

310674
Operation
6.2 Safety information for operation

Function Using buttons Using HART

Keyboard lock and write protection Yes Yes, release except for write
protection
Unit type, unit Yes Yes
Characteristic curve (lin., rad.) Yes Yes
(Not relevant for absolute
and gauge pressure)
Customized characteristic curve No Yes
Diagnostic function No Yes
More operating functions for special applications are accessible through HART.
If a device that does not have a digital display, its operations are limited. This is however not
applicable for selecting functions using HART.

6.2 Safety information for operation

NOTICE
If you have set the basic functions of the pressure transmitter as user defined, the display
and measurement output terminal can be adjusted such that the true process pressure is
not reproduced.
The basic variables should therefore be checked prior to commissioning.

6.3 Instructions for operation

The following rules are applicable for the operation of the pressure transmitter:
● The device counts numerical values always in an ascending order step by step starting
from the least significant digit displayed.
If you keep the button pressed for a longer time, it counts the next higher digit displayed.
This procedure is used for fast coarse adjustment over a wide number range. Release
the [↑] or [↓] button again for fine adjustment. Press the button again.
Violations of the measured value limits are displayed on the digital display with or .
● The keyboard must have been unlocked in order to operate the device using the
keyboard.
● If you are operating the transmitter locally, write access is denied through HART during
this time.
However, it is always possible to read the data, e.g. measured values.

SITRANS P, DS III series with HART communication

56 Operating Instructions, 12/2007, A5E00047092-06

310674
 Operation
6.4 Digital display

Note
The setting is saved and the measured values are automatically displayed again if more
than two minutes have passed after a button was pressed for the last time.
The operating instructions mentioned in the "Local operation without digital display"
chapter are applicable if the device has been delivered with a blind cover.

6.4 Digital display

6.4.1 Elements of the digital display

Structure

 

  

Figure 6-1 Structure of the digital display

① Measured value ⑤ Violation of lower limit

② Unit/bar graph ⑥ Symbol for measured value
③ Root display ⑦ Violation of higher limit
④ Mode/button lock ⑧ Communication display

Description
The digital display is used for local display of the measured value ① with:
● Unit ②
● Mode ④
● Sign ⑥
● Statuses ⑤ and ⑦
Depending on the customer setting, the displayed measured value ① represents the
following:

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 57

310674
Operation
6.4 Digital display

● The current emitted by the transmitter

● The percentage measurement value of the adjusted measurement type, e.g. level, related
to the adjusted measurement range.
● The measurement value in a selectable physical unit
The Violation of lower limit ⑤ and Violation of upper limit ⑦ displays are also referred to as
status since they have meanings dependent on the settings.
If the communication display ⑧ blinks, this indicates an active communication.

6.4.2 Units display

Description
The unit display comprises five 14-segment fields for representing the unit as a percentage
value, physical unit or current value. A bar graph showing the percentage measured value
range from 0 to 100% can be displayed as an alternative to the unit. The bar graph function
is disabled by default.

Display

Figure 6-2 Examples for measured value display for current and bar graph

The following messages may appear as a ticker in the bottom line of the digital display. They
have no influence on the current output.

Table 6-2 Message as ticker

Ticker Meaning
"DIAGNOSTIC WARNING" Is always displayed if:
• An event configured by the user is to be signaled with a
warning. For example:
– Limit reached
– Event counter for limit values exceeded
– Calibration time expired
– Current saturation reached
• The status of one of the device variables is
"UNCERTAIN".
"SIMULATION" Is always displayed when the simulation of a pressure value
or temperature value is active.

SITRANS P, DS III series with HART communication

58 Operating Instructions, 12/2007, A5E00047092-06

310674
 Operation
6.4 Digital display

See also
Measured value status (Page 101)

6.4.3 Error display

Description
If hardware faults, software errors or diagnostic alarms occur in the transmitter, the message
"Error" appears in the measured value display.
A ticker appears in the lower line of the digital display indicating the type of error. This
diagnostic information is also available via HART communication.

Display

Figure 6-3 Example of error message

The following messages may appear as a ticker in the bottom line of the digital display.

Ticker Meaning
"HARDWARE FIRMWARE ALARM" Contains hardware faults such as:
• incorrect checksum
• incorrect EEPROM data
• Defective EEROM
• RAM fault
• ROM fault
• inconsistent data
• EEPROMs not initialized
"DIAGNOSTIC ALARM" Is always displayed if
• an event configured by the user is to be signaled
with an alarm.
For example:
– Limit reached
– Event counter for limit values exceeded
– Calibration time expired
– Current saturation reached
• the status of one of the device variables is "BAD".
"SENSOR BREAK" Appears when there is a sensor break.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 59

310674
Operation
6.4 Digital display

See also
Measured value status (Page 101)

6.4.4 Mode display

Description
The selected active mode is shown in the mode display.

Display

Figure 6-4 Example for mode display

In the example, a damping of 0.2 seconds was set in mode 4.

6.4.5 Status display

Description
The arrows of the status display have a different meaning depending on the mode setting.
The table below shows the meanings of the arrows in the respective functions.

Meaning

Table 6-3 Meaning of the arrow displays

Function Mode Display Display

Adjusting start of 2 if the upper current limit is if the value falls below the
scale value exceeded lower current limit
Adjusting full scale 3 if the upper current limit is if the value falls below the
value exceeded lower current limit
Adjusting damping 4 if the upper damping value is if the value falls below the
exceeded lower damping value
only for the pressure device version only for the pressure device
version

SITRANS P, DS III series with HART communication

60 Operating Instructions, 12/2007, A5E00047092-06

310674
 Operation
6.4 Digital display

Function Mode Display Display

Blind adjustment of 5 if the upper sensor limit is if the value falls below the
the start of scale exceeded lower sensor limit
value
Blind adjustment of 6 if the upper sensor limit is if the value falls below the
the full scale value exceeded lower sensor limit
Position correction 7 if the max span is exceeded by if the value falls below the
more than 5% of the upper current lower current limit
limit
Root application point 12 if the root application point of 15% if the value falls below the root
is exceeded application point of 5%
Keyboard operation 2, 3, 5, when the span to be adjusted is when the span to be adjusted
6 larger than the maximum span is smaller than the minimum
span
Normal operation Current exceeds the upper Current falls below the lower
saturation limit saturation limit
Pressure exceeds the upper sensor Pressure falls below the lower
limit. sensor limit.

6.4.6 Overflow range

Description
The output signal is divided into defined ranges:
● Measuring range
● Saturation limits
● Fault current
The transmitter emits the output current according to the device variables selected as
primary variable (PV). The working range of the current lies between 4 mA and 20 mA.

Meaning
When the measurement limits are exceeded or not reached, the measured values are
correctly displayed in the overflow range.
A ticker is displayed in the lower line of the digital display showing the message UNDER or
OVER with respect to the selected unit. The possible overflow range can be adjusted via
HART communication. If either of the overflow limits are violated, the output current remain
constant. Violations of the measured value limits are displayed on the digital display with or
.

Note
The setting of the overflow range and the fault current range can be freely selected via
HART communication.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 61

310674
Operation
6.4 Digital display

Reference
NAMUR recommendation NE43 dated 03.02.2003
"Standardization of the signal level for the breakdown information of digital transmitters"

See also
Fault current (Page 109)
Setting the current limits (Page 110)

SITRANS P, DS III series with HART communication

62 Operating Instructions, 12/2007, A5E00047092-06

310674
 Operation
6.5 Local operation

6.5 Local operation

6.5.1 Local control elements

Introduction
The transmitter can be operated on-site using the buttons. Selectable modes can be used to
choose and execute the functions described in the table. The number of functions is limited if
the device does not have a digital display.

Control elements

  

Figure 6-5 Position of buttons and digital display

➀ Digital display ➁ Connecting plug for the digital display

➂ Mode button ➃ Increment button
➄ Decrement button

Operating functions

NOTICE
Zero point calibration
For absolute pressure transmitters, the start of scale value is at vacuum.
A zero point calibration with transmitters which do not measure absolute pressure leads to
faulty settings.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 63

310674
Operation
6.5 Local operation

Table 6-4 Operating functions using buttons

Function Mode Button function Display, explanations

[M] [↑] [↓] [↑] and [↓]
Measured value The The current measured value is displayed as you
modes have adjusted it in the "Measured value display,
are mode 13" function.
selected
here.
Start of scale value 2 Current Current Set to 4 mA Output current in mA
(only in "Pressure" higher lower
measuring mode)
Full scale value 3 Current Current Set to 20 mA Output current in mA
(only in "Pressure" higher lower
measuring mode)
Electrical damping 4 Damping Damping Set to 0 Time constant T63 in seconds
higher lower Adjustment range: 0.0 s to 100.0 s
Start of scale value 5 Pressure Pressure Set start of Start of scale value in the selected pressure unit
in the so-called blind higher lower scale value to
adjustment 0
Full scale value in 6 Pressure Pressure Set full scale Full scale value in the selected pressure unit
the so-called blind higher lower value to upper
adjustment measuring limit
Zero point 7 Correctio Correctio execute Ventilate the transmitter for gauge pressure,
calibration (position n value n value differential pressure, flow rate or level.
correction) higher lower Evacuate the transmitter for absolute pressure
(< 0.1 ‰ of the measuring span).
(Start of scale value remains unaffected)
Measured value in pressure unit
Current transmitter 8 Current Current switch on constant output current in mA
higher lower "3.6"; "4", "12", "20" or "22.8"
Switch off using the [M] button.
Output current in 9 Switch between lower lower fault selected output current possible: Fault current
case of fault fault current and current limits adjusted by user
upper fault current.
Button lock or 10 Switch between the – 0 None
function lock five functions LA all locked
LO all locked except for start of scale value
LS all locked except for start of scale value
and full scale value
L Write protection
Operation via HART not possible.
Characteristic 11 Switch between the linear lin linear
curve1) four functions srlin square root extracting (linear up to the
application point)
sroff Square root extracting
(deactivated up to the application point)
srli2 square root extracting (linear up to the
application point 10%)

SITRANS P, DS III series with HART communication

64 Operating Instructions, 12/2007, A5E00047092-06

310674
 Operation
6.5 Local operation

Function Mode Button function Display, explanations

[M] [↑] [↓] [↑] and [↓]
Application point of 12 Greater Smaller 10% flow rate Adjustment range of 5 to 15% flow rate.
the square root
extracting
characteristic curve1)
Measured value 13 Select from three – • Display type (input value)
display options. • Output current in mA
• Measured value in %
Unit 14 Select from the table In each case, Physical unit
for measured value the first value
display. from the table
of the physical
unit
1) Not relevant for gauge and absolute pressure)

See also
Overview of operation (Page 55)
Operating functions through HART communication (Page 91)

6.5.2 Operation using buttons

Introduction
This overview informs you about the most important safety notes to be observed when
operating the pressure transmitter. Furthermore, the overview guides you in adjusting the
operating functions on site.

Condition
The keyboard must have been unlocked in order to operate the device using the buttons.

Procedure
In the default setting, the device is in the measured value display.
To adjust the operating functions, proceed as follows:
1. Loosen both the screws of the keyboard cover and lift it upwards.
2. Keep pressing the [M] button until the desired mode is displayed.
3. Keep pressing the [↑] or [↓] button until the desired value is displayed.
4. Press the [M] button.
Now you have saved the values and the device goes to the next mode.
5. Close the keyboard cover using the two screws.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 65

310674
Operation
6.5 Local operation

Note
The setting is saved and the measured values are automatically displayed again if more
than two minutes have passed after a button was pressed for the last time.

See also
Releasing key lock or function lock (Page 81)

6.5.3 Start of scale value/full scale value

6.5.3.1 Difference between setting and adjusting

Introduction
In "Pressure" measuring mode, you can set or adjust the start of scale value and full scale
value using the buttons. Modes 2 and 3 are used for this. Rising and falling characteristic
curves can be realized with appropriate use of the buttons. If the transmitter is not in
"Pressure" measuring mode, this mode is skipped in local operation.

Difference
The difference between setting and adjusting lies in the calculation.

Setting with reference pressure

Condition
Two reference pressures pr1 and pr2 are available. The reference pressures are initialized by
the process or generated by a pressure sensor.
When setting, a desired start of scale value or a full scale value is allocated to the standard
current values (4 mA or 20 mA). After setting, the measuring span entered on the type plate
may no longer correspond with the adjustment.
Depending on the series and measuring range, a maximum downscaling of 1:100 can be
achieved (measuring span ratio = r, turn down).

Note
Setting the start of scale value does not change the measuring span. Setting the full scale
value does not change the start of scale value.
The start of scale value should therefore be set first, then the full scale value.

The correlation between the measured pressure and the output current generated is linear.
The square root extracting characteristic curve for differential pressure transmitters is an
exception. Calculate the output current using the following formula.

SITRANS P, DS III series with HART communication

66 Operating Instructions, 12/2007, A5E00047092-06

310674
 Operation
6.5 Local operation

S0$
, P$P$
0(0$
Figure 6-6 Current calculation formula for setting

I Output current MAactual Old start of scale value

p Pressure MEactual Old full scale value
MA Start of scale value MAtarget New start of scale value
ME Full scale value MEtarget New full scale value

Example of setting with reference pressure

A Initial situation  
S>EDU@

 
,>P$@

0$DFWXDO 0$WDUJHW 0(DFWXDO

   
B Setting start of scale value S>EDU@

  
,>P$@

0$DFWXDO 0$WDUJHW 0(WDUJHW

C Setting full scale value     
S>EDU@

  
,>P$@

Explanations for the example of setting with reference pressure

A The measuring range is from 0 to 16 bar. You are changing the start of scale value from
0 to 2 bar and the full scale value from 16 to 14 bar. The measuring span is then 12
bar.
B 2 bar process pressure is created.
Use the [M] button to set the transmitter to mode 2. To set the start of scale value,
press the [↑] and [↓] buttons simultaneously for 2 seconds.
If there is 2 bar input pressure, the transmitter produces an output current of 4 mA.
C 14 bar process pressure is created.
Use the [M] button to set the transmitter to mode 3. To set the full scale value, press the
[↑] and [↓] buttons simultaneously for 2 seconds.
If there is 14 bar input pressure, the transmitter produces an output current of 20 mA.
D The output current can be calculated for any input pressure using the "current
calculation formula for setting".

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 67

310674
Operation
6.5 Local operation

Note
If the value exceeds or falls below the preset measuring limits by more than 20% when
setting, the setting function is not carried out. The old value is retained in this case.
With a marked elevation of the zero point, the full scale value must therefore previously be
reduced such that it still lies within the permitted range after elevation of the zero point. This
setting function is only possible in "Pressure" measuring mode.

Adjusting with reference pressure

Condition:
The reference pressure, the adjusted start of scale value and adjusted full scale value are
known.
When adjusting, a start of scale value or a full scale value can be allocated to a desired
current value with the aid of a reference pressure. This function is particularly suitable when
the required pressures for the start of scale value and the full scale value are not available
After adjustment, the measuring range specified on the type plate may no longer correspond
with the setting.
Using the formulae below, the current to be set for the desired start of scale value and the
full scale value can be calculated.
To calculate the output currents when setting the start of scale value or the full scale value,
the reference pressure must be selected such that a value between 4 and 20 mA results for
the current.

S0$
, P$P$
0(0$

SUHI0$WDUJHW
,0( P$P$
0(WDUJHW0$WDUJHW

Figure 6-7 Current calculation formula for setting with reference pressure

I Output current MAactual Old start of scale value

IMA Current to be adjusted with MAtarget MEactual Old full scale value
IME Current to be adjusted with MEtarget MAtarget New start of scale value
p Pressure MEtarget New full scale value
pref Existing reference pressure

SITRANS P, DS III series with HART communication

68 Operating Instructions, 12/2007, A5E00047092-06

310674
 Operation
6.5 Local operation

Example of adjusting with reference pressure

A Initial situation SUHI

  
S>EDU@

  
,>P$@

B Calculating start of scale 0$DFWXDO 0$WDUJHW

  
0(,VW

value S>EDU@

 VHW  
,>P$@

0$DFWXDO 0$WDUJHW 0(WDUJHW

    
C Calculating full scale value S>EDU@

 VHW  
,>P$@

Explanations for the example of adjusting with reference pressure

A The measuring range is from 0 to 16 bar. You are changing the start of scale value from
0 to 2 bar and the full scale value from 16 to 14 bar. The measuring span is then 12
bar.
A reference pressure of 11 bar is created.
B Use the [M] button to set the transmitter to mode 2.
The "Current calculation formula for adjusting with reference pressure" can be used to
calculate the current to be adjusted for the desired start of scale value IMA (13 mA at
2 bar) with the existing reference pressure. It can be adjusted with the [↑] or [↓] buttons
IMA.
C Use the [M] button to set the transmitter to mode 3.
The "Current calculation formula for adjusting" can be used to calculate the current to
be adjusted for the desired full scale value IME (16 mA at 14 bar) with the existing
reference pressure. It can be adjusted with the [↑] or [↓] buttons IM.

Note
If the preset measuring limits are exceeded or fallen below by more than 20% during
adjustment, the resulting current cannot be set above these limits.
With a marked elevation of the zero point, the full scale value must therefore previously be
reduced such that it still lies within the permitted range after elevation of the zero point.

See also
Unit (Page 86)

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 69

310674
Operation
6.5 Local operation

6.5.3.2 Setting/adjusting the start of scale value

Introduction
Set or adjust the start of scale value of the pressure transmitter in mode 2.
You can also adjust the start of scale value or the full scale value separately as well as
adjust both these values one after the other.

Condition
You are familiar with the correct operation of the transmitter and the associated safety notes.
You have selected a reference pressure that corresponds to the start of scale value and is
within the permissible tolerance range.
The transmitter is in "Pressure" measuring mode.

Setting start of scale value

To set the output current of the start of scale value to 4 mA, proceed as follows:
1. Create the reference pressure.
2. Set mode 2.
3. Set the start of scale value to 4 mA.
4. Save with the [M] button.

Adjusting start of scale value

If you do not set the output current but constantly adjust it, you need to calculate the currents
to be adjusted mathematically.
To the adjust the output current of the start of scale value, proceed as follows:
1. Create the reference pressure.
2. Set mode 2.
3. Adjust the output current of the start of scale value to the calculated value.
4. Save with the [M] button.

Setting the start of scale value without a digital display

You have a device with a cover that does not have an inspection window and you wish to set
the start of scale value.
To set the output current of the start of scale value to 4 mA, proceed as follows:
1. Create the reference pressure.
2. Press the [↑] and [↓] buttons simultaneously.
The device has set the start of scale value to 4 mA.
3. When you release the buttons, the device saves the adjusted value automatically.

SITRANS P, DS III series with HART communication

70 Operating Instructions, 12/2007, A5E00047092-06

310674
 Operation
6.5 Local operation

Adjusting the start of scale value without a digital display

You have a device with a cover that does not have an inspection window and you do not
wish to set the start of scale value, but adjust it.
You will need an ammeter for this purpose.
To the adjust the output current of the start of scale value, proceed as follows:
1. Connect the ammeter to the test connector.
2. Create the reference pressure.
3. Adjust the output current of the start of scale value using the [↑] or [↓] button.
4. When you release the button, the device saves the adjusted value automatically.

6.5.3.3 Setting/adjusting the full scale value

Introduction
Set or adjust the full scale value of the pressure transmitter in mode 3.
You can also adjust the start of scale value or the full scale value separately as well as
adjust both these values one after the other.

Condition
You are familiar with the correct operation of the transmitter and the associated safety notes.
You have selected a reference pressure that corresponds to the full scale value and is within
the permissible tolerance range.
The transmitter is in "Pressure" measuring mode.

Setting full scale value

To set the output current of the full scale value to 20 mA, proceed as follows:
1. Create the reference pressure.
2. Set mode 3.
3. Set the full scale value to 20 mA.
4. Save with the [M] button.

Adjusting full scale value

If you do not set the output current but constantly adjust it, you need to calculate the currents
to be adjusted mathematically.
To the adjust the output current of the full scale value, proceed as follows:
1. Create the reference pressure.
2. Set mode 3.
3. Adjust the output current of the full scale value to the calculated value.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 71

310674
Operation
6.5 Local operation

4. Save with the [M] button.

Setting the full scale value without a digital display

You have a device with a cover that does not have an inspection window and you wish to set
the full scale value.
To set the output current of the full scale value to 20 mA, proceed as follows:
1. Create the reference pressure.
2. Press and hold the [M] button.
3. Also press the [↑] and [↓] buttons simultaneously.
The device has set the full scale value to 20 mA.
4. When you release the buttons, the device saves the adjusted value automatically.

Adjusting the full scale value without a digital display

You have a device with a cover that does not have an inspection window and you do not
wish to set the full scale value, but adjust it continuously.
You will need an ammeter for this purpose.
To the adjust the output current of the full scale value, proceed as follows:
1. Connect the ammeter to the test connector.
2. Create the reference pressure.
3. Press and hold the [M] button.
4. Adjust the output current of the full scale value to the calculated value using the [↑] or [↓]
button.
5. When you release the button, the device saves the adjusted value automatically.

6.5.4 Setting/adjusting electrical damping

Difference between setting and adjusting

You can set or adjust the time constant of electrical damping using the buttons. Setting
means that the time constant is automatically set to 0 seconds. Adjusting means that the
time constant is adjusted between 0 and 100 seconds using the steps of 0.1 seconds. This
electrical damping also has an effect on the built-in basic damping of the device.

Condition for "setting"

You are familiar with the correct operation of the transmitter and the associated safety notes.

SITRANS P, DS III series with HART communication

72 Operating Instructions, 12/2007, A5E00047092-06

310674
 Operation
6.5 Local operation

Setting electrical damping

To set electrical damping to 0 seconds, proceed as follows:
1. Set mode 4.
2. Press the [↑] and [↓] buttons simultaneously.
3. Save with the [M] button.

Result
Electrical damping has been set to 0 seconds.

Condition for "adjusting"

The default setting of steps is an interval of 0.1 seconds. If you press the [↑] or [↓] button for
a longer time, the step is increased.

Adjusting electrical damping

To adjust electrical damping, proceed as follows:
1. Set mode 4.
2. Adjust the desired damping.
3. Save with the [M] button.

Result
Electrical damping has been set to the desired time constant.

6.5.5 Blind start of scale value/full scale value

6.5.5.1 Difference between setting/adjusting and blind setting/adjusting

Differences
In contrast to setting/adjusting with a reference pressure, you do not need a reference
pressure for blind setting/adjusting. You can adjust a value in the physical variable
"pressure" without a reference pressure, and an output current with a reference pressure.

Blind adjusting
First select the desired physical unit. Then, adjust two pressure values using the [↑] and [↓]
buttons and save them in the device. These theoretical pressure values are allocated to the
standard current values 4 mA and 20 mA.
Depending on the series and measuring range, a maximum downscaling of 1:100 can be
achieved (measuring span ratio = r, turn down).

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 73

310674
Operation
6.5 Local operation

The correlation between the measured pressure and the output current generated is linear.
The square root extracting characteristic curve for differential pressure transmitters is an
exception.

Example of blind adjusting

A Initial situation  
S>EDU@

 
,>P$@

0$DFWXDO 0$WDUJHW 0(DFWXDO

B Blind adjustment of the start    
of scale value S>EDU@

  
,>P$@

C Blind adjustment of the full 0$DFWXDO 0$WDUJHW 0(WDUJHW

scale value    
S>EDU@

 
,>P$@

I Output current p Pressure

MAactu Old start of scale value MAtarget New start of scale value
al

MEactu Old full scale value MEtarget New full scale value
al

Explanations for the blind adjusting example

A The measuring range is from 0 to 16 bar. You are changing the start of scale value from
0 to 2 bar and the full scale value from 16 to 14 bar. The measuring span is then 12
bar.
In this example you create no pressure.
B Use the [M] button to switch the transmitter to mode 5. To adjust the start of scale value
to 2 bar, press one of the [↑] or [↓] buttons.
If there is 2 bar input pressure, the transmitter produces an output current of 4 mA.
C Use the [M] button to switch the transmitter to mode 6. To adjust the full scale value to
14 bar, press one of the [↑] or [↓] buttons.
If there is 14 bar input pressure, the transmitter produces an output current of 20 mA.

SITRANS P, DS III series with HART communication

74 Operating Instructions, 12/2007, A5E00047092-06

310674
 Operation
6.5 Local operation

Note
If the preset measuring limits are exceeded or fallen below by more than 20% during
adjustment, the resulting current cannot be set above these limits.
With a marked elevation of the zero point, the full scale value must therefore previously be
reduced such that it still lies within the permitted range after elevation of the zero point.

Setting without reference pressure

Blind setting resets the start of scale value to the lower sensor limit and the full scale value to
the upper sensor limit.

Note
If the value exceeds or falls below the preset measuring limits by more than 20% when
setting, the setting function is not carried out. The old value is retained in this case.
With a marked elevation of the zero point, the full scale value must therefore previously be
reduced such that it still lies within the permitted range after elevation of the zero point.

6.5.5.2 Blind setting of start of scale value

Introduction
Blind setting resets the start of scale value to the lower sensor limit.

Note
Changes in modes 5 and 6 have an exclusive effect on pressure scaling. This does not
affect the scaling for level or customized characteristic curve. Therefore, only measured
pressure values and pressure units are displayed in these modes.

Condition
You are familiar with the correct operation of the transmitter and the associated safety notes.
You have not created any reference pressure and have selected a pressure unit.

Procedure
To the set the start of scale value blindly, proceed as follows:
1. Set mode 5.
2. Press the [↑] and [↓] buttons simultaneously for 2 seconds.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 75

310674
Operation
6.5 Local operation

6.5.5.3 Blind setting of full scale value

Introduction
Blind setting resets the full scale value to the upper sensor limit.

Note
Changes in modes 5 and 6 have an exclusive effect on pressure scaling. This does not
affect the scaling for level or customized characteristic curve. Therefore, only measured
pressure values and pressure units are displayed in these modes.

Condition
You are familiar with the correct operation of the transmitter and the associated safety notes.
You have not created any reference pressure and have selected a pressure unit.

Procedure
To the set the full scale value blindly, proceed as follows:
1. Set mode 6.
2. Press the [↑] and [↓] buttons simultaneously for 2 seconds.

6.5.5.4 Blind adjusting of the start of scale value

Introduction
In the case of blind adjustment, adjust the pressure value of the start of scale value
continuously and without a reference pressure.

Note
Changes in modes 5 and 6 have an exclusive effect on pressure scaling. This does not
affect the scaling for level or customized characteristic curve. Therefore, only measured
pressure values and pressure units are displayed in these modes.

You can toggle between rising and falling characteristic curves.

Condition
You are familiar with the correct operation of the transmitter and the associated safety notes.
You have not created any reference pressure and have selected a pressure unit.

SITRANS P, DS III series with HART communication

76 Operating Instructions, 12/2007, A5E00047092-06

310674
 Operation
6.5 Local operation

Procedure
To the adjust the pressure value of the start of scale value blindly, proceed as follows:
1. Set mode 5.
2. Adjust the pressure value of the start of scale value.
3. Save with the [M] button.

6.5.5.5 Blind adjustment of the full scale value

Introduction
In the case of blind adjustment, adjust the pressure value of the full scale value continuously
and without a reference pressure.

Note
Changes in modes 5 and 6 have an exclusive effect on pressure scaling. This does not
affect the scaling for level or customized characteristic curve. Therefore, only measured
pressure values and pressure units are displayed in these modes.

You can toggle between rising and falling characteristic curves by swapping the start of scale
value and the full scale value.

Condition
You are familiar with the correct operation of the transmitter and the associated safety notes.
You have not created any reference pressure and have selected a pressure unit.

Procedure
To the adjust the pressure value of the full scale value blindly, proceed as follows:
1. Set mode 6.
2. Adjust the pressure value of the full scale value.
3. Save with the [M] button.

6.5.6 Trimming the zero point

Introduction
The zero point is calibrated in mode 7. Zero point calibration corrects zero point errors
resulting from the installation position of the pressure transmitter. The device type
determines the way in which you proceed.
SIMATIC PDM or the HART communicator will display the total of all zero point corrections.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 77

310674
Operation
6.5 Local operation

Condition
You are familiar with the correct operation of the transmitter and the associated safety notes.

Zero point calibration for gauge pressure transmitter

To calibrate the zero point, proceed as follows:
1. Pressurize the transmitter.
2. Set mode 7.
3. Press the [↑] and [↓] buttons simultaneously.
4. Save with the [M] button.

Zero point calibration for absolute pressure transmitter

Note
You need a reference pressure known to you which lies within the measuring limits.

To calibrate the zero point, proceed as follows:

1. Create the reference pressure.
2. Set mode 7.
3. Set the reference pressure on the digital display.
4. Save with the [M] button.

6.5.7 Current transmitter

Introduction
In mode 8, switch the pressure transmitter into the constant current operation. You can
connect an external current transmitter in the constant current operation. The current then no
longer corresponds to the process variable. The following output current can be adjusted
irrespective of the input pressure:
● 3.6 mA
● 4.0 mA
● 12.0 mA
● 20.0 mA
● 22.8 mA
You can use HART communication to adjust intermediate values.

SITRANS P, DS III series with HART communication

78 Operating Instructions, 12/2007, A5E00047092-06

310674
 Operation
6.5 Local operation

Procedure
To switch on the constant current operation, proceed as follows:
1. Set mode 8.
"Cur" in the digital display stands for current.
2. Press the [↑] and [↓] buttons simultaneously.
3. Select constant current.

Switching off the constant current operation

To switch off the constant current operation, proceed as follows:
Press the [M] button in mode 8.

6.5.8 Output current in case of fault

Introduction
When a fault occurs, the lower fault current is displayed in the basic setting. In mode 9, you
can choose between the output of the upper and lower fault current. The standard values
3.6 mA and 22.8 mA are set.
The standard values of the upper and lower fault current can be changed via HART
communication.

Condition
You are familiar with the correct operation of the transmitter and the associated safety notes.

Procedure
To change the fault current, proceed as follows:
1. Set mode 9.
2. Select the fault current.
3. Save with the [M] button.

Note
If a current saturation interrupt is active, the setting of the output current may deviate from
your setting in the case of a fault.

Resetting fault current

To reset the fault current to the basic setting, proceed as follows:
Press the [↑] and [↓] buttons simultaneously.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 79

310674
Operation
6.5 Local operation

Fault causes
Fault currents may be triggered by:
● FW alarm
● HW alarm
● Diagnostic interrupt
● Sensor breakage
● Measured value status BAD

Reference
NAMUR recommendation NE43 dated 03.02.2003
"Standardization of the signal level for the breakdown information of digital transmitters"

6.5.9 buttons and function lock

Introduction
In mode 10, you can disable the functions that can be executed using buttons. Application
example for a lock is e.g. safeguarding the saved parameters.

Lock options
You have the following lock options on the pressure transmitter:

Table 6-5 Meaning of lock modes

Lock mode Meaning

0 The device can be operated by means of the keys and HART communication.
LA Keys on the transmitter are locked.
Exception:
• Releasing key lock
The device can be operated by means of HART communication.
LO Keys on the transmitter are partially locked.
Exception:
• Setting start of scale value
• Releasing key lock
The device can be operated by means of HART communication.
LS Keys on the transmitter are partially locked.
Exception:
• Setting start of scale value
• Setting full scale value
• Releasing key lock
The device can be operated by means of HART communication.

SITRANS P, DS III series with HART communication

80 Operating Instructions, 12/2007, A5E00047092-06

310674
 Operation
6.5 Local operation

Lock mode Meaning

L Write protection
Operation via keys and HART communication is blocked.
Exception:
• Releasing key lock

Note
If you want to select the LO or LS lock, we recommend you first select the measured value
display of "Current" in "mA" or "%" in mode 13. Otherwise, a change in the output variable
using the [↑] and [↓] buttons is not detected.
If the blind cover is provided, the LS lock mode is effective, i.e. only the zero point and the
span can be changed. If you continuously operate the device with the blind cover, ensure
that the LS lock mode is constantly set.

Condition
You are familiar with the correct operation of the transmitter and the associated safety notes.

Note
In the measured value display function, check whether the desired setting is displayed.

Procedure
To disable the buttons, proceed as follows:
1. Set mode 10.
2. Select the desired lock mode.
3. Confirm the lock mode with the [M] button.

6.5.10 Releasing key lock or function lock

Releasing key lock

WARNING
In the case of devices used for safety-relevant applications, only authorized personnel may
release the key lock, e.g. overflow protection.

To release a set key lock (LA, LO, LS) using buttons, proceed as follows:
Press the [M] button for 5 seconds.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 81

310674
Operation
6.5 Local operation

Releasing the write protection

To release a write protection for HART (L) using buttons, proceed as follows:
Press the [M] button for 5 seconds.

6.5.11 Flow rate measurement (only differential pressure)

Introduction
The characteristic curve representing the relationship between the output current and input
pressure can be adjusted in mode 11. Adjust the root application point in mode 12.
You can select the following characteristic curve types of the output current:
● linear "lin": proportional to differential pressure
● square root extracting "sroff": proportional to flow rate, deactivated up to the application
point
● square root extracting "srlin": proportional to flow rate, linear up to the application point
● square root extracting "srli2": proportional to flow rate, two-step linear up to the
application point

Variable application point

The output current for the "srlin" and "sroff" functions can be displayed linearly or set to zero
below the application point of the square root extracting characteristic curve.

Fixed application point

The "srli2" function has a permanently defined application point of 10%. The range up to this
point contains two linear characteristic curve sections. The first section ranges from the zero
point to 0.6% of the output value and 0.6% of the pressure value. The second section has a
higher gradient and it goes up to the root application point at 10% of the output value and 1%
of the pressure value. See the following figure for this purpose.

SITRANS P, DS III series with HART communication

82 Operating Instructions, 12/2007, A5E00047092-06

310674
 Operation
6.5 Local operation

Procedure
Proceed as follows to set or adjust the type of characteristic curve:
1. Set mode 11.
2. Select the type of characteristic curve.
To set the characteristic curve to "linear", press the [↑] and [↓] buttons simultaneously.
3. Save with the [M] button.
Proceed as follows to set or adjust the root application point: This procedure is not applicable
for "srli2":
1. Set mode 12.
2. Select an application point between 5 and 15%.
To set the application point to 10%, press the [↑] and [↓] buttons simultaneously.
3. Save with the [M] button.

Note
Mode 12 cannot be selected if the "linear" or "srli2" measuring mode has been adjusted in
mode 11.
If the square root extracting characteristic curve has been adjusted in mode 11 and if the
measured value display has been set to "Pressure" in mode 13, the root sign and the
differential pressure corresponding to the flow rate are displayed.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 83

310674
Operation
6.5 Local operation

2XWSXW>@  The dotted rectangle has

been magnified in the form
VTXDUHURRW of the following

H[WUDFWLQJ characteristic curves in
order to show the behavior
of characteristic curves.

/LQHDU
SUHVVXUH






      3UHVVXUH>@

Characteristic curves and application point of square root

extracting characteristic curves

 
VTXDUHURRW
H[WUDFWLQJ
 $GMXVWPHQWUDQJH 
IRUDSSOLFDWLRQ
SRLQW
$SSOLFDWLRQ
 
SRLQW
OLQ
/LQHDU OLQHDU
 SUHVVXUH VUOLQ 
,

 
         

Characteristic curve "lin": Square root extracting characteristic curve

"srlin"

 
VTXDUHURRW VTXDUHURRW
H[WUDFWLQJ H[WUDFWLQJ
 

$SSOLFDWLRQ  $SSOLFDWLRQ

SRLQW SRLQWIL[HG
VURII VUOL
 



       

Characteristic curve "sroff" OLQHDUSUHVVXUH

Characteristic curve "srli2"

SITRANS P, DS III series with HART communication

84 Operating Instructions, 12/2007, A5E00047092-06

310674
 Operation
6.5 Local operation

6.5.12 Measured value display

Introduction
In mode 13, adjust the following types of measured value display:
● mA
● %
● Display of the selected measuring mode. See the following table.

Table 6-6 Display of measuring mode/device variables

Digital display DV Meaning

P 0 Pressure
t-SE 1 Sensor temperature
t-EL 2 Electronics temperature
P-UNC 3 Pressure (untrimmed)
LEVEL 4 Level
Vol 5 Volume
MASS 6 Mass
V-Flo 7 Volume of flow (not relevant for gauge and absolute pressure)
M-Flo 8 Mass flow rate (not relevant for gauge and absolute pressure)
CUSt 9 Users

Condition
You are familiar with the correct operation of the transmitter and the associated safety notes.

Procedure
To select the display type, proceed as follows:
1. Set mode 13.
2. Select the measured value display.
3. Save with the [M] button.

See also
Measured value display (Page 112)

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 85

310674
Operation
6.5 Local operation

6.5.13 Unit

Introduction
In mode 14, select the physical unit in which the measured value display of the device
should be shown.

Condition
You are familiar with the correct operation of the transmitter and the associated safety notes.
You have already selected the desired measured value display in mode 13.

Procedure
To adjust the physical unit, proceed as follows:
1. Set mode 14.
2. Select a unit.
Press the [↑] and [↓] buttons simultaneously to set the unit to the first value in the
following table depending on the measuring mode set.
3. Save with the [M] button.

Instructions for selecting the unit

● The unit is selected depending on the measurement type set. For example, only pressure
units are made available in "Pressure" measuring mode and only level unit are made
available in the "Level" measuring mode.
● The displayed measured value is always converted into the new unit. When the display
capacity of the digital display is exceeded, "9.9.9.9.9" appears on the display.
● The selected unit is visible on the display in the measuring mode only if you have
selected the display of a physical unit in mode 13. If you have not selected mode 13,
"mA" or "%" is displayed.

Units

Table 6-7 Units available for pressure

Pressure units Display

mbar mbar
bar bar
mm water column (20°C / 68°F) mmH2O
Inch water column (20°C / 68°F) inHG
Feet water column (20°C / 68°F) FTH2O
mm mercury column mm_HG
Inch mercury column in_HG
mm water column (4°C / 39°F) m4H2O

SITRANS P, DS III series with HART communication

86 Operating Instructions, 12/2007, A5E00047092-06

310674
 Operation
6.5 Local operation

Pressure units Display

Inch water column (4°C / 39°F) i4H2O
Psi PSi
Pa Pa
KPa² KPa
MPa MPa
g/cm2 Gcm2
Kg/cm2 KGcm2
Torr TORR
ATM ATM

Table 6-8 Units available for volume

Volume unit Display

m3 m3
Liter L
Hectoliter Hl
US gallon Gal
British gallon in Gal
British barrel bbl
British barrel liquid bblli
Buschels buShl
yard3 Yd3
Feet3 FT3
inch3 in3
Standard l STdl
Standard m3 STdm3
Standard feet3 STFT3

Table 6-9 Units available for mass

Mass unit Display

Gram G
Kilogram KG
Ton T
Short ton STon
Long ton lTon
Pound lb
Ounce OZ

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 87

310674
Operation
6.5 Local operation

Table 6-10 Units available for volume of flow

Unit for volume of flow Display

m3 / second m3/S
m3 / minute m3/M
m3 / hour m3/H
m3 / day m3/D
Liter / second L/S
Liter / minute L/M
Liter / hour L/H
Million liter / day ml/ D
Feet3 / second FT3/S
Feet3 / minute FT3/M
Feet3 / hour FT3/H
Feet3 / day FT3/D
Gallon / second Gal/S
Gallon / minute Gal/M
Gallon / hour Gal/H
Gallon / day Gal/D
Million gallon / day MGl/D
British gallon / second iGL/S
British gallon / minute iGL/M
British gallon / hour iGL/H
British gallon / day iGL/D
Standard m3 / hour Sm3/H
Standard l / hour STI/H
Standard feet3 / minute SFT3M
British barrel liquid / second bbl/S
British barrel liquid / minute bbl/M
British barrel liquid / hour bbl/H
British barrel liquid / day bbl/D

Table 6-11 Units available for mass flow rate

Mass flow rate unit Display

g/s G_S
g / min G_MIN
g/h G_H
Kg / s KG/S
Kg / min KG/M
Kg / h KG/H
Kg / d KG/D
T / min T/M

SITRANS P, DS III series with HART communication

88 Operating Instructions, 12/2007, A5E00047092-06

310674
 Operation
6.5 Local operation

Mass flow rate unit Display

T/h T/H
T/d T/D
Pound / s P/S
Pound / min lb/M
Pound / h lb/H
Pound / d lb/D
Short ton / min ShT/M
Short ton / h ShT/H
Short ton / d ShT/D
Long ton / h lT/H
Long ton / d lT/D

Table 6-12 Units available for level

Level unit Display

Feet FT
Inch inch
m m
cm cm
mm mm

Table 6-13 Units available for temperature

Temperature unit Display

° Celsius °/C
° Fahrenheit °/F
Kelvin K
Rankine R

See also
Selection of the physical unit (Page 113)

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 89

310674
Operation
6.5 Local operation

SITRANS P, DS III series with HART communication

90 Operating Instructions, 12/2007, A5E00047092-06

310674
Operating functions through HART 7
7.1 Operating functions through HART communication

Condition
You can operate the transmitter through HART communication. The following is required for
this purpose:
● A HART communicator or PC software such as SIMATIC PDM.
● A HART modem to connect a PC with the transmitter or a lead to connect a HART
communicator with the transmitter.

Introduction
The full functionality of the transmitter is available via HART communication. The HART
communicator and PC software are not supplied with the transmitter. How to connect and
operate a HART communicator or the PC software is described in separate operating
instructions or in the online help for both these tools.

Fundamental description
The input signal is provided in the form of digital information in the following variables
through HART communication:
● Pressure
● Level
● Volume
● Mass
● Volume of flow
● Mass flow rate
● User programmable "characteristic curve"
As soon as you have set up the HART communication and the transmitter, you can adapt the
transmitter to your relevant measuring task. When doing so you are assisted by the
selectable measuring modes "Pressure", "Level", "Flow rate" and a user programmable
"Characteristic curve". One or more device variables are permanently allocated to each
measuring mode in order to execute corresponding measuring tasks.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 91

310674
Operating functions through HART
7.2 Process tag data

See also
Overview of operation (Page 55)

7.2 Process tag data

You can store your process tag data in user definable fields. The following table contains
information about the structure of these fields and the format in which you can enter
information in these fields:

Table 7-1 Process tag data

Field Explanations
Tag designation Eight characters
Date Day:Month:Year
Description 16 characters
Message 32 characters
Works number Integer number
Tag designation long 32 characters
Freely definable material parameter 21 x 16 characters

7.3 Selecting the measuring modes

7.3.1 Overview of measuring modes

Overview
The transmitter can be set for the corresponding measuring task using a few parameters.
You can select the following measuring modes:
● Pressure
● Level
● Flow rate
● Users: user programmable characteristic curve
You can use the measuring mode selector to activate measuring modes "Level", "Flow rate"
and "User".

Selecting the device variables

One or more device variables are permanently allocated to each measuring mode. The
following device variables are always active and are therefore always displayed:

SITRANS P, DS III series with HART communication

92 Operating Instructions, 12/2007, A5E00047092-06

310674
 Operating functions through HART
7.3 Selecting the measuring modes

● Pressure
● Sensor temperature
● Electronics temperature
● Pressure (untrimmed)
The following device variables are activated only when the allocated measuring mode is
activated and parameterized simultaneously:
● "Level", "Volume" and "Mass" are allocated to the "Level" measuring mode.
● "Volume of flow" and "Mass flow rate" are allocated to the "Flow rate" measuring mode.
● "User" is allocated to the "User" measuring mode.
The inactive device variables have the CONSTANT status.

7.3.2 Measuring mode selector

You can use this switch to toggle between measuring modes "Pressure", "Level", "Flow rate"
and a characteristic curve programmable by a "User".
If a measuring mode has been selected using the measuring mode selector, it has to be
configured. This does not mean that this block has an automatic effect on the current output
(4 to 20 mA). For that, you need to switch the corresponding device variable to the primary
variable (PV) using a so-called variable mapper.

7.3.3 Variable mapper

Introduction
In this transmitter, the dynamic variable that determines the behavior of current output is
always called the primary variable (PV). You need to use the variable mapper for a number
of purposes, including selecting which device variable is to be switched to PV. The variable
selected as PV using a PC program such as SIMATIC PDM or using the HART
Communicator is scaled once again in the analog output stage to a zero value and a limit
value. These two values then correspond to the current values 4 and 20 mA.
As soon as the PV is switched over using the variable mapper, the start of scale value and
full scale value in the analog output stage are preset to the limit values of the new device
variables. You can define these limit values within the individual block functions.
The dynamic variables "Primary", "Secondary", "Tertiary" and "Quarternary" (PV, SV, TV,
QV) can be interconnected with any active device variables. Various different measuring
mode examples are conceivable with a 4 bar pressure transmitter.

See also
Measured value status (Page 101)

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 93

310674
Operating functions through HART
7.3 Selecting the measuring modes

7.3.4 Measuring mode "Pressure"

The "Pressure" measuring mode contains the "Sensor trim" function, and is always active
since it is the standard measuring mode. When the measuring mode selector is set to "Off",
further measuring variables are not derived from the "Pressure" measuring variable. Except
the first four variables, all other device variables are marked as inactive and have the
CONSTANT status. These four variables are mapped with dynamic variables PV, SV, TV
and QV by default.
Switching an inactive device variable to the primary variable (PV) generates an error
message since the variable currently does not have a valid measured value. This message
is displayed in SIMATIC PDM or the HART communicator.

6HQVRU /LQHDUL 0HDVXULQJPRGHV 'HYLFH 9DULDEOH '\QDPLFYDULDEOHV

]DWLRQ YDULDEOHV PDSSHU '9VWDQGDUGVHWWLQJ
'9


3UHVVXUH 3UHVVXUH
3UHVVXUH
6HQVRUWULP 

6HQVRU 6HQVRU 39

WHPSHUDWXUH WHPSHUDWXUH $QDORJ
69
(OHFWURQLFV (OHFWURQLFV RXWSXW

WHPSHUDWXUH WHPSHUDWXUH 79
3UHVVXUH  49
XQWULPPHG /&'VFDOH
0$0(XQLW
/HYHO 
2II
/HYHO
0HDVXULQJ &KDUDFWHULVWLF 9ROXPH 
PRGH FXUYH
VZLWFK 0DVV 

9ROXPHRIIORZ 
)ORZUDWH
&KDUDFWHULVWLF
FXUYH 0DVVIORZUDWH 
8VHUV
&KDUDFWHULVWLF 8VHUV 
FXUYH

Figure 7-1 Measuring mode "Pressure"

DV Device variable
MA Start of scale value
ME Full scale value
PV Primary variable
QV Quarternary variable
SV Secondary variable
TV Tertiary variable

SITRANS P, DS III series with HART communication

94 Operating Instructions, 12/2007, A5E00047092-06

310674
 Operating functions through HART
7.3 Selecting the measuring modes

7.3.5 Customized characteristic curve

Introduction
The customized "characteristic curve" is continuously active as an identical function in the
three following measuring modes "Level", "Flow rate" and "User". This means that the
customized "characteristic curve" always provides a result for the following function, thus
also influencing the measured value status of the affected device variables.
In the device, the characteristic curve vertices are only provided once in the EEPROM.
Therefore, if the measuring mode is changed, you will usually need to adjust the
characteristic curve accordingly.
The characteristic curve function expects at least two and at the most 30 characteristic curve
vertices as input parameters. Characteristic curve vertices are entered in pairs of values
x %;y %. The values for the x-coordinate are only accepted by the device when they run
monotonically. The y-coordinates, on the other hand, may also be non-monotonic. A warning
will however be issued by the configuring device, which you as the user have to recognize
and acknowledge. The output of the characteristic curve is not explicitly stored in a device
variable, but rather is directly interconnected with the input of the next function block in each
case. The pairs of values 0%;0% and 100%;100% are set as default values. In principle,
rising and falling characteristic curves can be configured. With regard to the device variable
status, rising characteristic curves are however preferred. Otherwise the meanings of HIGH
LIMIT and LOW LIMIT are swapped.

See also
Measured value status (Page 101)

7.3.6 Measuring mode "Level"

Description
Once you have configured the measuring mode "Level", the device variables "Level",
"Volume" and "Mass" are activated. They are all inferred from the measured pressure. The
"Level" block here represents a series of permanently interconnected functions which you
need to configure with appropriate parameters. Only then will you be given a meaningful
measured value for the three device variables.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 95

310674
Operating functions through HART
7.3 Selecting the measuring modes

6HQVRU /LQHDUL 0HDVXULQJPHWKRGV 'HYLFH 9DULDEOH '\QDPLFYDULDEOHV

]DWLRQ YDULDEOHV PDSSHU 6HOHFWLRQ
'9


3UHVVXUH 3UHVVXUH
3UHVVXUH
6HQVRUWULP 

6HQVRU 6HQVRU 39
WHPSHUDWXUH 
WHPSHUDWXUH $QDORJ
69
(OHFWURQLF (OHFWURQLF RXWSXW

WHPSHUDWXUH WHPSHUDWXUH 79
3UHVVXUH  49 /&'6FDOLQJ
XQWULPPHG
0$0(XQLW
/HYHO 
2II
/HYHO
0HDVXULQJ &KDUDFWHULVWLF 9ROXPH 
PRGH FXUYH
VZLWFK 0DVV 

8VHU 9ROXPHRIIORZ 
&KDUDFWHULVWLF
FXUYH 
0DVVIORZUDWH
8VHU
&KDUDFWHULVWLF 8VHU 
FXUYH

Figure 7-2 Measuring mode "Level"

DV Device variable
MA Start of scale value
ME Full scale value

Functions of the "Level" block

The first function, "Input scaling, pressure", sets the pressure range used by the following
functions in all three blocks in the same way. Ideally, this range corresponds to the sensor
limits of the transmitter. In the following calculation examples, 0 and 4 bar are assumed for
these sensor limits for all blocks. You can however also set a downscaling, e.g. 1:2. The
downscaling of 1:2 means that 50% of the rated measuring range, here 2 bar, can control
the following characteristic curve 100%.
Use the "Output scaling, level" to set the measuring limits for the measuring mode "Level"
with a unit from the level range. Parameter settings in this example are 10 and 20 m. At
0 bar process pressure, 10 m is displayed in DV4 and 20 m is displayed at 2 bar. The values
for the start of scale value and the full scale value, which are effective for the analog output,
are configured in the "analog output" block.
In the calculation example, the two pairs of values 0%;0% and 100%;100% are configured
for the customized "characteristic curve". This is the default setting. The measured value
from the pressure scaling is transferred 1:1 in this example.

SITRANS P, DS III series with HART communication

96 Operating Instructions, 12/2007, A5E00047092-06

310674
 Operating functions through HART
7.3 Selecting the measuring modes

'9>@ EDU &DOFXODWLRQH[DPSOH '9>@YROXPH O '9>@PDVV NJ

0$ 
0( 
2XWSXW  

,QSXWVFDOLQJ &KDUDFWHULVWLF 2XWSXWVFDOLQJ 2XWSXWVFDOLQJ
3UHVVXUH FXUYH 9ROXPH 0DVV
&DOFXODWLRQH[DPSOH &DOFXODWLRQH[DPSOH &DOFXODWLRQH[DPSOH
0$ EDU0( EDU 0$ O0( O 'HQVLW\ NJO
S EDU 9 O P NJ
2XWSXWVFDOLQJ
'9>@OHYHO P
/HYHO 0$0(

&DOFXODWLRQH[DPSOH
0$ P0( P
/ P

Figure 7-3 Functions of the "Level" block

DV [x] Device variable x

L Level
m Mass
MA Start of scale value
ME Full scale value
P Pressure
V Volume
Configure the "Output scaling, volume" with a unit from the volume range and the measuring
limits for the device variable "Volume". The characteristic curve output directly affects the
volume scaling input.
In the calculation example, for the measuring limits from 0 and 100 l, a volume of 50 l is
yielded for process pressure of 1 bar.
The "Level" parameter setting also still automatically activates the device variable for the
mass. If you have not yet configured a value for the density, the initial value of 1 kg/l is
preset. In the calculation example for the "Mass" device variable, a mass of 250 kg is derived
at a density of 5 kg/l.

Note
When the density changes, the measuring range limits have to be adjusted accordingly.

You can configure all parameter settings for the "Level" block in SIMATIC PDM or the HART
communicator. Activate the "Level" measuring mode for this purpose. For all settings, the
measuring limits may be exceeded by +/-20%. Values which lie above or below that will be
rejected by the device.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 97

310674
Operating functions through HART
7.3 Selecting the measuring modes

7.3.7 Measuring mode "Flow rate"

Description
When you activate the "Flow rate" measuring mode, only two other device variables are
active: Volume of flow and Mass flow rate. If another block was active earlier, the
corresponding device variables remain inactive and have the "CONSTANT" status. The
"Flow rate" block here represents a series of permanently interconnected functions which
you need to configure with appropriate parameters.

6HQVRU /LQHDUL 0HDVXULQJPRGHV 'HYLFH 9DULDEOH '\QDPLFYDULDEOHV

]DWLRQ YDULDEOHV PDSSHU '9VWDQGDUGVHWWLQJ
'9


3UHVVXUH 3UHVVXUH
3UHVVXUH
6HQVRUWULP 

6HQVRU 6HQVRU 39

WHPSHUDWXUH WHPSHUDWXUH $QDORJ
69
(OHFWURQLFV (OHFWURQLFV RXWSXW

WHPSHUDWXUH WHPSHUDWXUH 79
3UHVVXUH  49 /&'VFDOH
XQWULPPHG
0$0(XQLW
/HYHO 
2II
/HYHO
0HDVXULQJ &KDUDFWHULVWLF 9ROXPH 
PRGH FXUYH

VZLWFK 0DVV 

)ORZUDWH
9ROXPHRIIORZ 
&KDUDFWHULVWLF
FXUYH 0DVVIORZUDWH 
8VHUV
&KDUDFWHULVWLF 8VHUV 
FXUYH

Figure 7-4 Measuring mode "Flow rate"

DV Device variable
MA Start of scale value
ME Full scale value

Functions of the "Flow rate" block

The "Input scaling, pressure" function defines the pressure range of 0 to 2 bar that is
interpreted as 0 and 100% by the following square root extracting function. A process
pressure of 0.5 bar has been assumed in the following figure.
In the "Flow rate" measuring mode, a square root extracting characteristic curve "srlin2" is
plotted with a fixed root application point of 10%.
In the calculation example, the input value for the "square root extracting function" is
approximately 25% at a process pressure of 0.5 bar. The output value is approximately 50%.

SITRANS P, DS III series with HART communication

98 Operating Instructions, 12/2007, A5E00047092-06

310674
 Operating functions through HART
7.3 Selecting the measuring modes

Note
When using the "Flow rate" block, other square root extracting characteristic curves must be
deactivated if required.

'9>@ EDU &DOFXODWLRQH[DPSOH '9>@9ROXPHRI '9>@0DVV

0$  IORZ OV IORZUDWH NJV
0( 
2XWSXW 
 
,QSXWVFDOLQJ 6TXDUHURRW 2XWSXWVFDOLQJ 2XWSXWVFDOLQJ
H[WUDFWLQJIXQFWLRQ &KDUDFWHULVWLFFXUYH
3UHVVXUH 9ROXPH 0DVVIORZUDWH
VUOLQ
&DOFXODWLRQH[DPSOH &DOFXODWLRQH[DPSOH &DOFXODWLRQH[DPSOH &DOFXODWLRQH[DPSOH
0$ EDU0( EDU 5RRWDSSOLFDWLRQSRLQW  0$ OV0( OV 'HQVLW\ NJO
S EDU LQSXW  9) OV 0) NJV
RXWSXW 

Figure 7-5 Functions of the "Flow rate" block

DV [x] Device variable x MF Mass flow rate

MA Start of scale value p Pressure
ME Full scale value VF Volume of flow

In the calculation example, the two pairs of values 0%;0% and 100%;50 % are configured for
the customized "characteristic curve". This setting corresponds to a bisection of the input
value for all output values.
Configure the "Output scaling, volume of flow" with a unit from the volume of flow range and
the measuring limits for the device variable "Volume of flow". In the calculation example, 0 l/s
and 1000 l/s are defined as lower and upper measuring limits. The volume of flow is thus
250 l/s at a process pressure of 0.5 bar.
The "Mass flow rate" device variable is automatically activated when the "Flow rate" block is
configured. If you have not yet configured a value for the density, the initial value of 1 kg/l is
preset.
In the calculation example, a mass of 1000 kg/s is derived for the "Mass flow rate" device
variable at a value of 4 kg/l. The value of density entered is used only to calculate the mass
flow rate. The entered value of density has no effect on the diaphragm calculation that is to
be carried out by the user.
In SIMATIC PDM or the HART communicator, the "Flow rate" block is configured in an online
dialog box in an extremely compact manner. In this online dialog box, you can compile all
values in a menu and transfer them to the device collectively.

7.3.8 Measuring mode "User"

Description
The "User" measuring mode is the simplest of the measuring modes that you can select with
the measuring mode selector. Only one further device variable, "User", is activated in this
measuring mode in addition to the four standard device variables. The variables "Level",

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 99

310674
Operating functions through HART
7.3 Selecting the measuring modes

"Volume", "Mass", "Volume of flow" and "Mass flow rate" are marked as inactive and are
given the status CONSTANT.
In the "User" measuring mode, you have an option to define a customized unit for output
scaling. This customized unit is, e.g. a specific quantity of liquid. This quantity of liquid
depends on the input process pressure.
Example: Fill the beverages in cans having a capacity of 0.33 l. You can now define a
customized unit "Can" that is exactly equal to 0.33 l. The quantity of "cans" depends on the
input process pressure.

Note
Permissible input values
All alphabetic a...z, A...Z and numeric 0...9 inputs are allowed for the customized unit. The
following characters are also allowed:
°"$/<>*,_+-=@

6HQVRU /LQHDUL 0HDVXULQJPRGHV 'HYLFH 9DULDEOH '\QDPLFYDULDEOHV

]DWLRQ YDULDEOHV PDSSHU 6HOHFWLRQ
'9


3UHVVXUH 3UHVVXUH
3UHVVXUH
6HQVRUWULP 
6HQVRU 39
6HQVRU 
WHPSHUDWXUH WHPSHUDWXUH $QDORJ
69
(OHFWURQLFV (OHFWURQLFV RXWSXW
WHPSHUDWXUH
 79
WHPSHUDWXUH
3UHVVXUH  49 /&'VFDOH
XQWULPPHG 0$0(XQLW
/HYHO 
2II
/HYHO
0HDVXULQJ &KDUDFWHULVWLF 9ROXPH 
FXUYH
PRGH
VZLWFK 0DVV 

/HYHO 9ROXPHRIIORZ 
&KDUDFWHULVWLF
FXUYH
0DVVIORZUDWH 
8VHUV
&KDUDFWHULVWLF 8VHUV 
FXUYH

Figure 7-6 Measuring mode "User"

DV Device variable MA Start of scale value

PV Primary variable ME Full scale value
SV Secondary variable
TV Tertiary variable
QV Quarternary variable

Functions of the "User" block

The first function, "Input scaling, pressure", defines the pressure range which is used by the
customized characteristic curve. Ideally, this range corresponds to the sensor limits.

SITRANS P, DS III series with HART communication

100 Operating Instructions, 12/2007, A5E00047092-06

310674
 Operating functions through HART
7.3 Selecting the measuring modes

In the calculation example, 0 and 2 bar are assumed. This means that with process pressure
of 0.5 bar, there is a value of 25% on the characteristic curve.

'9>@ EDU &DOFXODWLRQH[DPSOH

0$ 
0( 
2XWSXW 
 
,QSXWVFDOLQJ &KDUDFWHULVWLF 2XWSXWVFDOLQJ
'9>@
8VHU
3UHVVXUH 8VHU
YHVVHOV
&DOFXODWLRQH[DPSOH &DOFXODWLRQH[DPSOH
EDU0( EDU
0$ 0$ YHVVHOV0( YHVVHOV

S EDU 2XWSXW YHVVHOV

Figure 7-7 Functions of the "User" block

DV [x] Device variable x MA Start of scale value

p Pressure ME Full scale value
In the calculation example, the two pairs of values 0%;0% and 100%;100% are configured
for the customized "characteristic curve". Any curve shapes can be calculated with the help
of 30 characteristic curve vertices. These curve shapes can be stored in the device using
SIMATIC PDM or the HART communicator.
In the calculation example, the value at the input of the characteristic curve is transferred 1:1
to the output.
In the calculation example, a number of filled cans is set for the output scaling. You can
enter up to five characters for any given unit. Do not confuse this with the user-
programmable display unit of the "Analog output" block.
In the calculation example, you have a start of scale value of 0 cans and a full scale value of
1000 cans. At a process pressure of 0.5 bar, you get a value of 250 cans for the "User"
device variable.

See also
Analog output (Page 105)
Measured value status (Page 101)

7.3.9 Measured value status

Introduction
Every device variable is assigned a status byte to indicate the quality of the measured
values. This status byte can have the following values:
● BAD
● GOOD
● MANUAL
● UNCERTAIN

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 101

310674
Operating functions through HART
7.3 Selecting the measuring modes

The following values are also possible:

● CONSTANT
● HIGH LIMIT
● LOW LIMIT
A higher-level diagnosis program can display and analyze these states.

GOOD status
During smooth, uninterrupted operation, the measured value status of all active device
variables is GOOD.

BAD/CONSTANT status
All inactive device variables have CONSTANT/BAD status.
If a variable having the BAD status is an output value for calculation, the measured value is
BAD.
The basic measured values, namely pressure and temperatures, have the BAD status in the
following cases:
● The analog-to-digital converter does not function.
● Linearization values in the EEPROM are defective.
● If the two end points of the customized characteristic curve are exceeded for the status of
the device variables of the following function.

UNCERTAIN status
If a pressure value exceeds or falls below the sensor limits of the device by more than 20%,
the corresponding measured value and the variables inferred from it are UNCERTAIN.
If the analog-to-digital converter for pressure control is over/underrange, the status is
UNCERTAIN.

HIGH LIMIT and LOW LIMIT

If the analog-to-digital converter is overrange, the HIGH LIMIT label is allocated. If the
analog-to-digital converter is underrange, the LOW LIMIT label is allocated.

Change in status
If the status of a device variable changes and it was right at the front of the sequence of
operations for a block, e.g. pressure, then all variables that are derived from it will take on
the same status. In the following example, the device variable "Pressure" has the BAD
status. Since the measuring mode selector is set to "USER", the device variable "User" is
also given the BAD status.
The reasons for changes in the status of a device variable are summarized in the table. If
there were several reasons for a change in status, MANUAL always has the highest priority.
BAD has the second highest and UNCERTAIN the third highest priority.

SITRANS P, DS III series with HART communication

102 Operating Instructions, 12/2007, A5E00047092-06

310674
 Operating functions through HART
7.3 Selecting the measuring modes

6HQVRU /LQHDUL 0HDVXULQJPRGHV 'HYLFH 9DULDEOH '\QDPLFYDULDEOHV

]DWLRQ YDULDEOHV PDSSHU 6HOHFWLRQ
'9
   
+ %
3UHVVXUH 3UHVVXUH / *
3UHVVXUH
6HQVRUWULP & 0 
8
+ %
6HQVRU 6HQVRU / * 39

WHPSHUDWXUH WHPSHUDWXUH & 0
8 $QDORJ
+ % 69 RXWSXW
(OHFWURQLFV (OHFWURQLFV / *
& 0 
WHPSHUDWXUH WHPSHUDWXUH 8 79
+ %
3UHVVXUH / *
49
& 0  /&'VFDOH
XQWULPPHG 8
+ %
0$0(XQLW
/ *
/HYHO & 0

2II 8
/HYHO + %
0HDVXULQJ &KDUDFWHULVWLF 9ROXPH / *
& 0 
PRGH FXUYH 8
+ %
VZLWFK 0DVV / *
& 0 
8
6WDWXVPDUNLQJ + %

% %$' 9ROXPHRIIORZ / *
& 0 
)ORZUDWH 8
* *22' &KDUDFWHULVWLF + %
0 0$18$/ FXUYH 0DVVIORZUDWH / *
& 0 
8 81&(57$,1 8
/ /2:/,0,7(' 8VHUV + %
/ *
+ +,*+/,0,7(' &KDUDFWHULVWLF 8VHUV & 0 
& &2167$17 FXUYH 8

Figure 7-8 Device status dependency

DV Device variable MA Start of scale value

PV Primary variable ME Full scale value
SV Secondary variable
TV Tertiary variable
QV Quarternary variable

Table 7-2 Events which result in a change of status

DV Measuring BAD MANUAL UNCERTAIN CONSTANT HIGH LIMIT LOW LIMIT

mode
0 Pressure DV3 = BAD, When DV3 = UNCERTAIN - DV3 = DV3 =
fault in DV0 is HIGH LIMIT LOW LIMIT
linearization simulated
1 Sensor DV2 = BAD, When DV1 more than 20% - Analog-to- Analog-to-
temperature analog-to- DV1 is outside the sensor digital digital
digital converter simulated limits converter in converter in
in DV2 = UNCERTAIN overrange underrange
over/underrang DV2 = MANUAL
e, fault in
linearization
2 Electronics Analog-to- When DV2 more than 20% - Analog-to- Analog-to-
temperature digital converter DV2 is outside the sensor digital digital
in simulated limits converter in converter in
over/underrang overrange underrange
e, fault in
linearization

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 103

310674
Operating functions through HART
7.3 Selecting the measuring modes

DV Measuring BAD MANUAL UNCERTAIN CONSTANT HIGH LIMIT LOW LIMIT

mode
3 Pressure Analog-to- - Analog-to-digital - Analog-to- Analog-to-
(untrimmed) digital converter converter in digital digital
in overrange/underran converter in converter in
over/underrang ge, DV3 more than overrange underrange
e, DV1 sensor 20% outside the
breakage, sensor limits
DV2 = BAD, DV2 = MANUAL
fault in
linearization
4 Level If DV0 = BAD When DV0= UNCERTAIN DV not DV0 = DV0 =
DV0 is active HIGH LIMIT LOW LIMIT
simulated
5 Volume DV0 = BAD, When DV0 = UNCERTAIN, Characteristi DV4 = DV4 =
Characteristic DV0 is input value is c curve is HIGH LIMIT, LOW LIMIT,
curve is faulty simulated outside the specified faulty Characteristic Characteristic
characteristic curve DV not curve for curve for
range active maximum minimum value
value with with gradient 0
gradient 0
6 Mass DV5 = BAD When DV5= UNCERTAIN DV not DV5 = DV5 =
DV0 is active, HIGH LIMIT LOW LIMIT
simulated DV5 =
CONSTANT
7 Volume of flow DV0 = BAD, When DV0 = UNCERTAIN, Characteristi DV4 = DV4 =
(not absolute characteristic DV0 is input value is c curve is HIGH LIMIT, LOW LIMIT,
and gauge curve is faulty simulated outside the specified faulty, Characteristic Characteristic
pressure) characteristic curve DV not curve for curve for
range active maximum minimum value
value with with gradient 0
gradient 0
8 Mass flow rate DV5 = BAD When DV5= UNCERTAIN DV not DV5 = DV5 =
(not absolute DV0 is active #HIGH LIMIT LOW LIMIT
and gauge simulated DV5 =
pressure) CONSTANT
9 Users DV0 = BAD, When DV0 = UNCERTAIN, Characteristi DV0 = DV0 =
Characteristic DV0 is input value is c curve is HIGH LIMIT, LOW LIMIT,
curve is faulty simulated outside the specified faulty Characteristic Characteristic
characteristic curve DV not curve for curve for
range active maximum minimum value
value with with gradient 0
gradient 0
If you use falling characteristic curves in the blocks, the meanings of HIGH LIMIT and LOW
LIMIT are swapped around.
If you mix falling and rising characteristic curves, the meanings will be swapped each time a
falling characteristic curve is run.

SITRANS P, DS III series with HART communication

104 Operating Instructions, 12/2007, A5E00047092-06

310674
 Operating functions through HART
7.3 Selecting the measuring modes

7.3.10 Analog output

Introduction
The "Analog output" block converts the value provided by the dynamic primary variable (PV)
into a current value of 4 to 20 mA. When you actuate the measuring mode selector, you
automatically define the start of scale value and the full scale value to the current values 4
and 20 mA, respectively. Limit values of corresponding device variables are used for scaling
the analog output by default. You have entered these limits when setting the parameters of
your measuring mode.

Example for measuring mode "Level"

This means that for a "Level" device variable as PV, 10 m corresponds to the value for 4 mA
and 20 m corresponds to the value for 20 mA. You can change this presetting again in the
"Analog output" block. This is done by restricting the range of the "Level" device variable for
scaling the output current to e.g. 12 to 18 m. This downscaling has no effect on the previous
block scaling. In this case, a current of 4 mA is output for a measured height of 12 m, and a
current of 20 mA for 18 m.

6HQVRU /LQHDUL 0HDVXULQJPRGHV 'HYLFH 9DULDEOH '\QDPLFYDULDEOHV

]DWLRQ YDULDEOHV PDSSHU 6HOHFWLRQ
'9
   

3UHVVXUH 3UHVVXUH
3UHVVXUH
6HQVRUWULP 

6HQVRU 6HQVRU 39

WHPSHUDWXUH WHPSHUDWXUH $QDORJ
69 RXWSXW
(OHFWURQLFV (OHFWURQLFV

WHPSHUDWXUH WHPSHUDWXUH 79
3UHVVXUH 49
 /&'VFDOH
XQWULPPHG
0$0(XQLW
0$ P
0( P/HYHO

2II
/HYHO
0HDVXULQJ &KDUDFWHULVWLF 9ROXPH 
PRGH FXUYH
VZLWFK 0DVV 

9ROXPHRIIORZ 
)ORZUDWH
&KDUDFWHULVWLF
FXUYH 0DVVIORZUDWH 
8VHUV
&KDUDFWHULVWLF 8VHUV 
FXUYH

Figure 7-9 "Analog output" scaling

DV Device variable MA Start of scale value

PV Primary variable ME Full scale value
SV Secondary variable
TV Tertiary variable
QV Quarternary variable

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 105

310674
Operating functions through HART
7.3 Selecting the measuring modes

Description of measuring mode "Level"

39OHYHO P OLQHDU

6TXDUHURRW
H[WUDFWLQJIXQFWLRQ
 VURII  2XWSXWVFDOLQJ
,QSXWVFDOLQJ &XUUHQW WRP$
6TXDUHURRW
3ULPDU\9DULDEOH H[WUDFWLQJIXQFWLRQ
0$0( VUOL &RQVWDQWFXUUHQW
6TXDUHURRW
&DOFXODWLRQH[DPSOH H[WUDFWLQJIXQFWLRQ
0$ P0( P VUOL
S EDU

Figure 7-10 "Analog output" block

MA Start of scale value p Pressure

ME Full scale value PV Primary variable

Note
If, when setting the analog output, the values for the start of scale value zero and the full
scale value are more than 20% below or above the limit values of the set PV (set using the
variable mapper), the values will be rejected by the device. The values configured previously
are retained. Similarly, the span must not fall below the minimum.
Minimum span = ME - MA
The square root extracting function can only be selected in the "Pressure" measuring mode.
The "srlin2" square root extracting function is set as default in the "Flow rate" measuring
mode.

7.3.11 Scaling the digital display value

Introduction
You can freely scale the value shown in the digital display and allocate any unit of 5
characters to it. The scaling of the value is independent of the selection of the measuring
mode selector, the primary variable (PV) and the display unit defined. Use the "Digital
display settings" item in SIMATIC PDM or the HART communicator for this purpose.
The percent value of the PV is the basis for this scaling. This percent value is also used to
scale the current output. In SIMATIC PDM, this item is referred to as "Setting the PV output
scaling". After selecting the "Digital display settings" menu command, you must enter a start-
of-scale value, full scale value and a unit string.
This display option has the highest priority amongst all options. A switch over to %, mA or
any other unit is not possible in this status. You need to deactivate the LCD scaling again for
this purpose.

SITRANS P, DS III series with HART communication

106 Operating Instructions, 12/2007, A5E00047092-06

310674
 Operating functions through HART
7.4 Setting zero point and limit point

Example
In the Level measuring mode, the start of scale value is assumed as 0 m and the full scale
value as 10 m in the example illustrated in the following picture. The value of 2 m is
displayed at a process pressure of 0.4 bar.

6HQVRU /LQHDUL 0HDVXULQJPRGHV 'HYLFH 9DULDEOH '\QDPLFYDULDEOHV

]DWLRQ YDULDEOHV PDSSHU 6HOHFWLRQ
'9
   

3UHVVXUH 3UHVVXUH 3UHVVXUH 

6HQVRUWULP

6HQVRU 6HQVRU 39

WHPSHUDWXUH WHPSHUDWXUH $QDORJ
69 RXWSXW
(OHFWURQLFV (OHFWURQLFV
WHPSHUDWXUH

WHPSHUDWXUH 79
3UHVVXUH 49 /&'
XQWULPPHG 
VFDOH
0$ P
/HYHO  0( P
2II
/HYHO
0HDVXULQJ &KDUDFWHULVWLF 9ROXPH 
PRGH FXUYH
VZLWFK 0DVV 

9ROXPHRIIORZ 
)ORZUDWH
&KDUDFWHULVWLF
FXUYH 0DVVIORZUDWH 
8VHUV
&KDUDFWHULVWLF 8VHUV 
FXUYH

Figure 7-11 Free LCD scaling

DV Device variable MA Start of scale value

PV Primary variable ME Full scale value
SV Secondary variable
TV Tertiary variable
QV Quarternary variable

7.4 Setting zero point and limit point

You can set the zero point and the limit point using the SIMATIC PDM or HART
Communicator. You can use this function to realize rising or falling characteristic curves.
The pressure unit can be set separately for the display and for HART communication.

See also
Difference between setting and adjusting (Page 66)

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 107

310674
Operating functions through HART
7.5 Blind setting of zero point and limit point

7.5 Blind setting of zero point and limit point

● The start of scale value and the full scale value can be set without creating a reference
pressure.
● Both values can be selected as any point within the sensor limits.
● The maximum downscaling is 1:100, depending on the series and the measuring range.

7.6 Zero point calibration (position correction)

Description
A zero point calibration is used to correct a zero point error resulting from the installation
position.

Procedure
● Pressurize the device or evacuate it (at absolute pressure, < 0.1 ‰ of the measuring
span).
● Perform the zero point calibration using SIMATIC PDM or the HART Communicator.
● If you do not have a vacuum, perform a trimming of the lower sensor calibration point at a
known reference pressure.

CAUTION
For absolute pressure transmitters, the zero point is at vacuum. A zero point calibration
with a pressurized transmitter will lead to faulty settings!

Note
The effective measuring range is reduced by the amount of the upstream pressure.
Example:
With an upstream pressure of 100 mbar, the effective measuring range of a 1-bar
transmitter is reduced to a point between 0 and 0.9 bar.

See also
Trimming of the sensor trim point (Page 114)

SITRANS P, DS III series with HART communication

108 Operating Instructions, 12/2007, A5E00047092-06

310674
 Operating functions through HART
7.7 Electrical damping

7.7 Electrical damping

Description
You can set the time constant of electrical damping to a point within a range from 0 to 100 s.
It always applies to the "Pressure" device variable (DV0) and thus to the measured values
derived from it.

7.8 Fast response mode

Description
This mode is only intended for special applications such as fast recognition of jumps in
pressure, e.g. pressure drop in the event of pipe breakage. The internal recording of
measured values is sped up at the cost of accuracy. From your point of view, an increased
low-frequency noise is caused for the measured value. For this reason, good accuracy can
only be achieved by setting the measuring span to the maximum.

7.9 Current sensor

Description
The transmitter can be switched to constant current operation for test purposes. In that case,
the current no longer corresponds to the process variable. A "C" appears in the mode display
of the digital display.

7.10 Fault current

Description
You can use this function to set the size of the lower (< 4 mA) and upper (> 20 mA) fault
current. Both signal a hardware/firmware fault, sensor breakage, or that the alarm limit has
been reached (diagnostic interrupt). In that case, ERROR appears in the digital display. You
can obtain a detailed guide to the display using SIMATIC PDM or the HART Communicator.

Reference
NAMUR recommendation NE43 dated 03.02.2003
"Standardization of the signal level for the breakdown information of digital transmitters"

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 109

310674
Operating functions through HART
7.11 Setting the current limits

See also
Error display (Page 59)
Limit modules (Page 121)

7.11 Setting the current limits

Description
The level of the upper and lower fault current and the upper and lower saturation limits can
be freely selected within the preset limits of the current output signal.
The specified accuracy of the current output signal is only valid within the current limits 4 to
20 mA.

,$
>P$@





 

  





  S>@

0HDVXULQJUDQJH

Figure 7-12 Current limits

① Linear control range

② Lower saturation limit (default value)
③ Upper saturation limit (default value)
④ Lower fault current value (default value)
⑤ Upper fault current value (default value)
⑥ Recommended setting range for lower fault current range and lower control range limit
⑦ Recommended setting range for upper fault current range and upper control range limit

SITRANS P, DS III series with HART communication

110 Operating Instructions, 12/2007, A5E00047092-06

310674
 Operating functions through HART
7.12 Key lock and write protection

7.12 Key lock and write protection

Introduction
You can use this function to lock the keys or activate write protection to safeguard the saved
parameters.

Lock options
You have the following lock options:

Table 7-3 Meaning of the HART lock modes

Lock mode Meaning

0 The device can be operated by means of the keys and HART communication.
LA Keys on the transmitter are locked.
Exception:
• Releasing key lock
The device can be operated by means of HART communication.
LO Keys on the transmitter are partially locked.
Exception:
• Setting start of scale value
• Releasing key lock
The device can be operated by means of HART communication.
LS Keys on the transmitter are partially locked.
Exception:
• Setting start of scale value
• Setting full scale value
• Releasing key lock
The device can be operated by means of HART communication.
LL Write protection
You can now only release the lock using HART communication.

See also
buttons and function lock (Page 80)
Releasing key lock or function lock (Page 81)

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 111

310674
Operating functions through HART
7.13 Measured value display

7.13 Measured value display

Introduction
You can use this function to set one of three options for the device display:
● Display in mA
● Display in % (of the set measuring range)
● Display in terms of a physical unit, e.g. bar, l, m3/ h etc.

Description
If the Primary Variable is mapped to the "Pressure" device variable, you can configure the
displayed pressure unit with an add-on, GAUGE (G) or ABS (A). The add-on has no effect
on the real measured value.
To do so, select the option Gauge or Absolute under the "Pressure display type" menu
command.
There are two options for the display:
● If the pressure unit is < 5 characters, an A or a G is added at the end, respectively.
● If the pressure unit is ≥ 5 characters, the letters GAUGE or ABS flash alternately with the
pressure unit.

Figure 7-13 Add-on with example GAUGE

Note
The change of the display with GAUGE or ABS does not change the physical pressure
used by the transmitter, rather only the nature of the display.

See also
Measured value display (Page 85)

SITRANS P, DS III series with HART communication

112 Operating Instructions, 12/2007, A5E00047092-06

310674
 Operating functions through HART
7.14 Selection of the physical unit

7.14 Selection of the physical unit

Introduction
You can use this function to select a unit from a table with predefined units.

Description
The only units available will be those of the device variable that was mapped as the Primary
Variable (PV).
The unit can be set separately for the display and for HART communication. You can also
choose to link the setting of the two units.

See also
Unit (Page 86)

7.15 Bar graph

Description
You can use this to switch on the "Bar graph" function in the device display as an alternative
to the unit display. The "Bar graph" function is disabled in the factory state.

See also
Elements of the digital display (Page 57)

7.16 Sensor calibration

7.16.1 Sensor trim

Description
The sensor trim can be used to set the characteristic curve of the transmitter at two sensor
trim points. The results are then correct measured values at the sensor trim points. The
sensor trim points can be selected as any points within the nominal range.
Devices that are not turned down prior to delivery are trimmed at 0 bar and the upper limit of
the nominal range; devices that are turned down prior to delivery are trimmed at the lower
and upper limits of the set pressure measuring range.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 113

310674
Operating functions through HART
7.16 Sensor calibration

Application examples
● For a particular device that is not turned down (e.g. 63 bar), the typical measured value is
50 bar. To attain the highest possible accuracy for this value, set the upper sensor
calibration at 50 bar.
● A 63-bar transmitter is turned down to 4 to 7 bar. You can attain the highest possible
accuracy by selecting 4 bar for the lower sensor calibration point and 7 bar for the upper.
● A 250-mbar absolute pressure transmitter shows 25 mbar at 20 mbar (abs). A reference
pressure of 100 mbar is available. You can carry out zero point correction by performing
a lower sensor trim at 100 mbar.

Note
The accuracy of the test device should be at least three times as high as that of the
transmitter.

7.16.2 Trimming of the sensor trim point

Trimming the lower sensor trim point

The pressure at which the lower sensor trim is to be performed is applied at the transmitter.
Via SIMATIC PDM or the HART Communicator, you instruct the transmitter to accept this
pressure.
This represents an offset shift of the characteristic curve.

Trimming the upper sensor trim point

The pressure at which the upper sensor trim is to be performed is applied at the transmitter.
Via SIMATIC PDM or the HART Communicator, you instruct the transmitter to accept this
pressure.
A gradient correction is thereby applied to the characteristic curve. The lower sensor trim
point is not affected by this. The upper trim point needs to be greater than the lower trim
point.

SITRANS P, DS III series with HART communication

114 Operating Instructions, 12/2007, A5E00047092-06

310674
 Operating functions through HART
7.17 Current sensor trim

 $% 3DUDOOHOGLVSODFHPHQW
0HDVXUHG
SUHVVXUHS %  %& &KDQJHRIVORSH

 &


ORZHU XSSHU 6HWSRLQWSUHVVXUH

EDODQFHSRLQW EDODQFHSRLQW

Figure 7-14 Sensor calibration

A Output characteristic curve

B Characteristic curve after lower sensor trim
C Characteristic curve after upper sensor trim

7.17 Current sensor trim

Description
The current that is output by the transmitter can be trimmed independently of the pressure
measuring circuit. This function is designed for compensating inaccuracies in the processing
chain following the transmitter.

Example of an application
The current is to be measured as a voltage drop from 1 to 5 V at a resistance of 250 Ohm +/-
5%. To trim the tolerance of the resistance, set the current transmitter so that the voltage
drop at 4 mA is exactly 1 V and at 20 mA is exactly 5 V.
● Trim at 4 mA:
Use the current transmitter trim menu option to instruct the transmitter to output 4 mA.
Read the measured value from the ammeter and enter it, via SIMATIC PDM for example.
The transmitter uses this value for offset correction of the current.
● Trim at 20 mA:
Use the current transmitter trim menu option to instruct the transmitter to output 20 mA.
Read the measured value from the ammeter and enter it, via SIMATIC PDM for example.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 115

310674
Operating functions through HART
7.18 Factory calibration

The transmitter uses this value for gradient correction of the current. The value for 4 mA
is not affected by this.

Note
If a multimeter is used, it must always be sufficiently accurate.

 $% 3DUDOOHOYHUVFKLHEXQJ
0HDVXUHG
&XUUHQW,  %& &KDQJHRIVORSH


%


&
,

,

P$ P$ 1RPLQDOFXUUHQW,

Figure 7-15 Current transmitter trim

A Output characteristic curve

B Characteristic curve after current transmitter trim 4 mA
C Characteristic curve after current transmitter trim 20 mA

7.18 Factory calibration

Introduction
You can use factory calibration to reset the transmitter to the factory state.

Description
You can use the menu-guided interface of SIMATIC PDM or HART Communicator to select
the range of parameters to be reset:
1. Current trim
2. Sensor zero point calibration (position correction)
3. Pressure corrections (zero point calibration and sensor trim)

SITRANS P, DS III series with HART communication

116 Operating Instructions, 12/2007, A5E00047092-06

310674
 Operating functions through HART
7.19 Static configuration data

4. All parameters relevant for the processing of measured values, such as zero point, limit
point, electrical damping, display unit, current trim, zero point calibration (position
correction), sensor trim, measuring speed, interrupt current limits, interrupt setting,
overflow ranges of current.
5. Variable mapper. This performs the following setting:
PV= Pressure, SV= Sensor temp., TV= Electronics temp., QV= Non-linearized pressure

PV Primary variable
SV Secondary variable
TV Tertiary variable
QV Quarternary variable

7.19 Static configuration data

Description
A further menu command in the corresponding operating program allows you to read and
also write a series of sensor-specific material data. With the factory state, this data is pre-
allocated according to the particular device model. These values are not contained in the
"Factory calibration" function; in other words, changes in the device are permanently saved.
List of variable material parameters:
● Flange type
● Flange material
● Remote seal type
● Filling medium
● O-ring material
● Remote seal
● Remote seal diaphragm material
● Number of remote seals
● Sensor filling medium
● Sensor seal diaphragm material
● Transmitter model
● Housing material
● Tube length
● Process connection
● Electrical connection
● Material of pressure cap screws
● Vent valve position
For a series of these material data items, you can enter any designation of your choice under
the option "Special". This applies to the following parameters:

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 117

310674
Operating functions through HART
7.20 Flow rate measurement (only differential pressure)

● Process connection
● Flange type
● Pressure cap screws
● O-ring material
● Material of vent valve
● Vent valve position
● Remote seal type
● Remote seal
● Diaphragm material
● Remote seal filling medium
You can use up to 16 characters for each entry.

7.20 Flow rate measurement (only differential pressure)

Description
For the "Differential pressure and flow rate" device version, you can select the characteristic
curve of output current as follows without actuating the measuring mode selector:
● linear "lin": proportional to differential pressure
● square root extracting "sroff": proportional to flow rate, deactivated up to the application
point
● square root extracting "srlin": proportional to flow rate, linear up to the application point
● square root extracting "srlin2": proportional to flow rate, two-step linear up to the
application point

Variable application point

The output current for the "srlin" and "sroff" functions can be displayed linearly or set to zero
below the application point of the square root extracting characteristic curve.

Fixed application point

The "srlin2" function has a permanently defined application point of 10%. The range up to
this point contains two linear characteristic curve sections. The first section ranges from the
zero point to 0.6% of the output value and 0.6% of the pressure value. The second section
has a higher gradient and it goes up to the root application point at 10% of the output value
and 1% of the pressure value.

See also
Flow rate measurement (only differential pressure) (Page 82)

SITRANS P, DS III series with HART communication

118 Operating Instructions, 12/2007, A5E00047092-06

310674
 Operating functions through HART
7.21 Diagnostic functions

7.21 Diagnostic functions

7.21.1 Overview

Description
HART communication allows you to activate and evaluate a wide range of diagnostic
functions from a central control room or onsite:
● Calibration/service timer
● Min/max indicator
● Limit monitoring modules
● Simulation of measured pressure and temperature values
● Limit monitoring of all device variables
The diagnostics strategy employed for the transmitter incorporates a diagnostic warning and
a diagnostic interrupt for diagnostic functions for monitoring limit values, e.g. for monitoring
current saturation. This warning and interrupt can be configured:
● Diagnostic warning: The device transmits via HART communication the diagnostic event
that has occurred. The current output value is unaffected. The message "Diagnostic
Warning" alternates with the unit on the display.
● Diagnostic interrupt: The device goes into the fault current state. The message
"Diagnostic Warning" or "Diagnostic Alarm" appears on the display, along with the
message ERROR. In addition, the diagnostic event is made available via HART
communication.
In the default settings, all warnings and alarms are switched off. You can choose to set either
the diagnostic warning only or the diagnostic interrupt and warning. For HART
communication, use the HART Communicator or PC software such as SIMATIC PDM. To
see the steps required, refer to the attached table for operation of the HART Communicator
or the help functions in the SIMATIC PDM software.

7.21.2 Operating hours counter

Description
An operating hours counter can be read via HART communication for the electronics and
another for the sensor. For HART communication, use the HART Communicator or PC
software such as SIMATIC PDM. The counters are activated the first time the transmitter is
put into operation. If the device is separated from its power supply, the counter readings are
automatically stored in the non-volatile memories. That means that the current counter
readings can be accessed at the next restart. The operating hours counters cannot be reset.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 119

310674
Operating functions through HART
7.21 Diagnostic functions

7.21.3 Calibration timer and service timer

Description
To guarantee regular calibration of the electronics and for servicing work on the sensor, you
can fit a two-stage timer to each. After the first time period has elapsed, a calibration or
service warning will be issued. After a second time period, which can be configured as a time
differential, a diagnostic interrupt is reported and fault current is output.
To perform calibration work, you need to acknowledge warnings and interrupts. You can
then reset the timers and switch off the monitoring function. The calibration intervals for the
electronics are calculated using the following formula:

UHTXLUHGDFFXUDF\ಥSUREDEOHWRWDOHUURU
&DOLEUDWLRQLQWHUYDO
6WDELOLW\PRQWK

For operating/acknowledging the warnings and interrupts in SIMATIC PDM and via the
HART Communicator, the following applies:

As long as the warning/interrupt limit has not been reached, the following applies:
● "Reset" resets the timer and starts again from count 0. Monitoring remains active.
● "Acknowledge" has no effect; the timer continues running and monitoring remains active.
● "Reset and deactivate" stops the timer, resets it, and deactivates monitoring.

When the warning/interrupt limit has been reached, the following applies:
● "Acknowledge" resets the warning/interrupt message, but allows the timer to keep
running. In this state, a new interrupt or warning is not possible since the time limits have
already been exceeded.
● "Reset" resets the warning/interrupt message and the timer. It acknowledges the interrupt
or warning at the same time. The timer immediately starts running again from zero and
will report again when the warning/interrupt limit is next reached. The next calibration
interval is therefore immediately active.
● "Reset and deactivate W/I" resets the warning/interrupt message and the timer and
deactivates it.

7.21.4 Min/max indicator

Description
The measuring transmitter provides three min/max indicator pairs, which you can use to
monitor the three measured variables Pressure, Sensor temperature, and Electronics
temperature for negative and positive peak values. For each measured value, a resettable
min/max indicator saves the maximum and minimum peak values in long-term storage in the
two non-volatile memories. Consequently, the values are available even after the device is
restarted. The min/max indicators are also updated during a simulation.

SITRANS P, DS III series with HART communication

120 Operating Instructions, 12/2007, A5E00047092-06

310674
 Operating functions through HART
7.21 Diagnostic functions

8SSHUGUDJLQGLFDWRUSRLQW

UYH
FX
UH
VX
HV
3U
/RZHUGUDJLQGLFDWRUSRLQW

Figure 7-16 Basic representation of min/max indicators

p Pressure t Time

7.21.5 Limit modules

Introduction
The diagnostic functions of this device give you an option to monitor the measured values in
programmable limits. If the limits are not adhered to, the device sends a warning through
HART communication or notifies a higher-level instance about an analog fault current.

Monitoring of current saturation

You can monitor the current output in the saturation range using a simple limit module. This
limit module is configured and activated via HART communication. For HART
communication, use a HART communicator or PC software such as SIMATIC PDM.
You need to set two time periods to configure the limit module:
The first time period specifies how long the current output is allowed to be in saturation
before an interrupt is triggered and the device outputs its set fault current. This first time
period is the response time.
The second time period specifies the duration of the interrupt. This second time period is the
stop time.
Different outputs of the fault current corresponding to the set response and stop times are
shown in the following example.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 121

310674
Operating functions through HART
7.21 Diagnostic functions

Configuring the direction of fault current

The current value is proportional to pressure within the saturation limits. When the saturation
limits are exceeded, the direction of fault current can however vary from the direction of
saturation. The upper or the lower fault current is displayed depending on the parameter
settings of the direction of fault current.
You can configure the direction of fault current for a current saturation interrupt depending on
your requirements. The following settings are possible under the current saturation menu:

Active interrupt value The applicable settings are those under the current interrupt
type menu command.
Inverse interrupt value The applicable settings are the inverse settings under the
current interrupt type menu command.
Saturated interrupt value The fault current is output in the direction of current saturation.
Inverse saturated The fault current is output in the opposite direction to current
interrupt value saturation.

The difference between different settings is evident in examples 3 and 4 in the following
figure. Example 3 shows the direction of fault current with the "Saturated current value"
setting. Example 4 shows the direction of fault current with the "Active upper interrupt value"
setting.

Example
The configured saturation limits in the following figures are 3.8 mA and 20.5 mA.
Example 1: the response time starts at t1. At t1, current reaches the configured saturation
limit of 20.5 mA for the first time. At t2, the response time ends. The stop time begins and the
interrupt is triggered. Time t3 is the configured end of the stop time. At t3, the interrupt is
immediately revoked even if the current then drops below the saturation limit again.
Example 2: the duration of the current saturation is shorter than the response time (t1, t2). In
that case, the device does not go into "fault current" state.
Example 3: the current drops below the lower saturation limit only for a short time. The fault
current is not switched off until after the end of the stop time (t3). The direction of fault current
corresponds to the "Saturated interrupt value" setting. The fault current is output in the
direction of current saturation.
Example 4: the current drops below the lower saturation limit only for a short time. The fault
current is not switched off until after the end of the stop time (t3). The direction of fault current
corresponds to the "Active upper interrupt value" setting. The upper fault current is outputted
although the direction of current saturation is downward.

SITRANS P, DS III series with HART communication

122 Operating Instructions, 12/2007, A5E00047092-06

310674
 Operating functions through HART
7.22 Simulation

([DPSOH ([DPSOH ([DPSOH ([DPSOH

,>P$@
XSSHU
)DXOWFXUUHQW



ORZHU
)DXOWFXUUHQW

SPD[

SPLQ

W W W W W W W W W W W
7LPH>V@

Figure 7-17 Four examples of saturation monitoring

See also
Fault current (Page 109)

7.22 Simulation

7.22.1 Overview of simulation

Description
With the "Simulation" diagnostic function, you can receive and process simulated
measurement data onsite or in the control room without having process pressure or a
temperature value. This allows you to run individual process sequences in the "cold" state
and thus simulate process states. In addition, if you inject simulation values you can test the
line routing from the control room to the individual transmitter.
The value to be simulated can be provided as a fixed value or in the form of a ramp function.
Simulation of pressure and temperature values is handled in the same way in terms of
parameter settings and function, so the following will only deal with the general simulation
procedures "Fixed value" and "Ramp function".

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 123

310674
Operating functions through HART
7.22 Simulation

For reasons of safety, all simulation data are held only in the non-volatile user memory. This
means that when the device is restarted any simulation which may be active will be shut
down. You can simulate the pressure and both temperature values. It should be noted here
that changing the temperatures by simulation will have no effect on the measured pressure
value.

0HDVXUHPHQW

6HQVRU
S $

6HQVRU ' 3URFHVVYDOXH

7 P$

$
6HQVRU
7HOHFWU '

w&

9DOXHV3 )L[HGYDOXH

9DOXHV +$57
+$57
7VHQVRU
&RPPXQLFDWRU
5DPS
9DOXHV
7HOHFWU

,
&RQVWDQW

6LPXODWH

Figure 7-18 Block diagram of simulation

7.22.2 Simulation as fixed value

Description
Taking the physical unit into account you can set a fixed simulation value for all three
possible simulation paths. You can simulate the pressure value and both temperature values
simultaneously. While pressure simulation is activated, the transmitter will not react to
changes in the process pressure. The output value for the current adjusts itself in
accordance with the preset pressure value. Simulation of the temperature values has no
effect on the current output. It can only be observed via HART communication.

7.22.3 Simulation with a ramp function

Description
In addition to the adjustable fixed values for all three simulation paths, you can, as a second
option, also configure one ramp function in each case. Adjustable lower and upper values
together determine the limits between which the simulation values with a rising or falling

SITRANS P, DS III series with HART communication

124 Operating Instructions, 12/2007, A5E00047092-06

310674
 Operating functions through HART
7.23 Limit monitor

tendency can move. The step width can be calculated with the step number, which is also
adjustable. You can specify the rate of rise of the ramp via the duration of the individual ramp
steps.

8SSHUUDQJHYDOXHಥ/RZHUUDQJHYDOXH
,QFUHPHQW
1XPEHURIVWHSV

7.23 Limit monitor

Description
You can activate up to three limit monitors in order to monitor any of the device variables.
The limit monitor monitors a value at an upper or lower limit value. If this limit is violated it
sends a diagnostic warning or a diagnostic interrupt. Select the "Limit Monitor" menu
command in SIMATIC PDM or in the HART communicator. You can program the following
values for each of the three limit monitors:

Table 7-4 Parameter of the limit monitor

Monitoring variable You will be shown a list of the active device variables. This list is
independent of the measuring mode selected.
Limit monitoring: warning / interrupt Select whether a warning or a warning plus an interrupt should be
triggered when a limit is violated.
Limit monitoring: upper / lower Specify here whether a device variable monitors the upper limit, the
lower limit, or both limits.
Upper limit value Upper limit value in the unit of the device variable.
Lower limit value Lower limit value in the unit of the device variable.
Hysteresis Operating point for chatter suppression in the case of small pressure
changes.
Response time The time which must pass after the limit is violated before this violation
is registered.
Stop time The time for which a limit interrupt or warning will always be sustained
even when the event which triggered it is no longer present.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 125

310674
Operating functions through HART
7.23 Limit monitor

,>P$@
)DXOW
FXUUHQW



'9

'9PD[

'9PLQ

5HVSRQVHWLPH
7LPH >V@
0LQVWRSWLPH

Figure 7-19 Trip levels for the limit monitor

You can count the limit violations for each limit monitor by activating an event counter that
provides separate, cumulative totals of upper and lower limit violations. A diagnostic warning
and / or a diagnostic interrupt can be issued once a certain number of violations is reached,
a number which you can also program. You can program the following values for the event
counter:

Table 7-5 Parameters of the event counter

Event counter: upper limit Select here whether a warning or a warning plus an interrupt should be
triggered when the comparison value is exceeded.
Event counter: lower limit Select here whether a warning or a warning plus an interrupt should be
triggered when the comparison value is not met.
Comparison value: upper limit Specify here the number of overflows at which a warning or a warning
plus an interrupt should be triggered.
Comparison value: upper limit Specify here the number of underflows at which a warning or a warning
plus an interrupt should be triggered.
Limit monitoring, warning/interrupt: upper limit Select whether a warning or a warning plus an interrupt should be
triggered when the event counter upper limit is violated.
Limit monitoring, warning/interrupt: lower limit Select whether a warning or a warning plus an interrupt should be
triggered when the event counter lower limit is violated.
Reset event counter upper limit Here you can reset the upper limit counter to zero. A new event is not
possible until the counter has been reset.
Reset event counter lower limit Here you can reset the lower limit counter to zero. A new event is not
possible until the counter has been reset.
Warning/interrupt acknowledgement Here you can acknowledge each warning or interrupt separately.

SITRANS P, DS III series with HART communication

126 Operating Instructions, 12/2007, A5E00047092-06

310674
 Operating functions through HART
7.23 Limit monitor

(YHQW

(YHQW
'9 FXUUHQW ,QSXW

/LPLWPD[>XQLW'9@ &RPSDULVRQYDOXHDERYH

/LPLWPLQ>XQLW'9@ &RXQW
(YHQWFRXQWHUDERYH
+\VWHUHVLV>XQLW'9@ (YHQWFRXQWHUEHORZ

5HVSRQVHWLPH>V@ (QDEOHFRPSDUDWRU

6WRSWLPH>V@

:DUQLQJDERYHDFWLYH
(QDEOHPD[PLQERWKRII :DUQLQJDFWLYHEHORZ
:DUQLQJDFWLYH :DUQLQJDQGDODUPDERYHDFWLYH
:DUQLQJDQGDODUPDFWLYH :DUQLQJDQGDODUPEHORZDFWLYH

:DUQLQJDODUPDFNQRZOHGJHPHQW :DUQLQJDODUPDFNQRZOHGJHPHQW
5HVHWFRXQWHUDERYHEHORZ

0D[PLQWULJJHU (YHQWFRXQWHU

Figure 7-20 Limit monitor and event counter

Messages from the limit monitor and from the event counter can be acknowledged
separately. Resetting the event counter starts a new monitoring interval.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 127

310674
Operating functions through HART
7.23 Limit monitor

SITRANS P, DS III series with HART communication

128 Operating Instructions, 12/2007, A5E00047092-06

310674
Functional safety 8
8.1 General safety instructions

8.1.1 Safety-instrumented system

This chapter describes the functional safety in general and not specific to a device. The
devices in the examples are selected as representative examples. The device-specific
information follows in the next chapter.

Description
The sensor, logic unit/control system and final controlling element combine to form a safety-
instrumented system, which executes a safety function.

&RQWUROV\VWHP

3/&

)LQDOFRQWUROOLQJ
HOHPHQW
9DOYHZLWKDFWXDWRU
DQGSRVLWLRQHU

6HQVRU
7UDQVGXFHU

P$ P$
6)P$

Figure 8-1 Example of a safety-instrumented system

SF Failure signal

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 129

310674
Functional safety
8.1 General safety instructions

Functioning of the system as shown in the example

The transmitter generates a process-specific analog signal. The downstream control system
monitors this signal to ensure that it does not fall below or exceed a set limit value. In case of
a fault, the control system generates a failure signal of < 3.6 mA or > 22 mA for the
connected positioner, which switches the associated valve to the specified safety position.

8.1.2 Safety Integrity Level (SIL)

The international standard IEC 61508 defines four discrete Safety Integrity Levels (SIL) from
SIL 1 to SIL 4. Each level corresponds to the probability range for the failure of a safety
function.

Description
The following table shows the dependency of the SIL on the "average probability of
dangerous failures of a safety function of the entire safety-instrumented system" (PFDAVG)
The table deals with "Low demand mode", i.e. the safety function is required a maximum of
once per year on average.

Table 8-1 Safety Integrity Level

SIL Interval
4 10-5 ≤ PFDAVG < 10-4
3 10-4 ≤ PFDAVG < 10-3
2 10-3 ≤ PFDAVG < 10-2
1 10-2 ≤ PFDAVG < 10-1
The "average probability of dangerous failures of the entire safety-instrumented system"
(PFDAVG) is normally split between the three sub-systems in the following figure.

6HQVRU &RQWUROV\VWHP )LQDOFRQWUROOLQJ

HJSUHVVXUH RUORJLFXQLW HOHPHQW
WHPSHUDWXUHHWF HJ HJYDOYHZLWKDFWXDWRU
3/& DQGSRVLWLRQHU

3)'$9*FRPSRQHQW   

Figure 8-2 Example of PFD distribution

The following table shows the achievable Safety Integrity Level (SIL) for the entire safety-
instrumented system for type B subsystems depending on the safe failure fraction (SFF) and
the hardware fault tolerance (HFT). Type B subsystems include analog transmitters and
shut-off valves without complex components, e.g. microprocessors (also see IEC 61508,
Section 2).

SFF HFT
0 1 (0) 1) 2 (1) 1)
< 60 % Not permitted SIL 1 SIL 2

SITRANS P, DS III series with HART communication

130 Operating Instructions, 12/2007, A5E00047092-06

310674
 Functional safety
8.2 Device-specific safety instructions

HFT
60 to 90 % SIL 1 SIL 2 SIL 3
90 to 99 % SIL 2 SIL 3 SIL 4
> 99 % SIL 3 SIL 4 SIL 4
1) As per IEC 61511-1, Section 11.4.4
According to IEC 61511-1, Section 11.4.4, the hardware fault tolerance (HFT) can be
reduced by one (values in brackets) for sensors and final controlling elements with complex
components if the following conditions are applicable for the device:
● The device is proven-in-use.
● The user can configure only the process-related parameters, e.g. control range, signal
direction in case of a fault, limiting values, etc.
● The configuration level of the firmware is blocked against unauthorized operation.
● The function requires SIL of less than 4.
The device fulfills these conditions.

See also
Safety characteristics (Page 134)

8.2 Device-specific safety instructions

8.2.1 Safety function

Safety function for pressure transmitters

Measuring pressures is the safety function for SITRANS P. It is applicable for output current
from 4 to 20 mA and ensures an accuracy of ± 2% of the measured value in this range. The
safety function ensures that the diagnosis function responds within 4 seconds in the worst
case scenario.

WARNING
The binding settings and conditions are listed in the "Settings" and "Safety characteristics"
sections.
These conditions must be met in order to fulfil the safety function.

The calculated Mean Time Between Failures (MTBF) for the SITRANS P pressure
transmitter is approximately 400 years.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 131

310674
Functional safety
8.2 Device-specific safety instructions

See also
Safety characteristics (Page 134)

8.2.2 Requirements

Requirements
Functional safety has the following requirements:
● Functional safety to SIL 2 under IEC 61508 or IEC 61511-1, from firmware version FW:
from 11/02/03
● Explosion protection for corresponding versions
● Electromagnetic compatibility in compliance with EN 61326

8.2.3 Settings
The following settings must be adhered to after installing and commissioning as per the
Operating Instructions:

Operation/configuration
While operating/configuring, ensure that the technical data of the pressure transmitter are
adhered to in their respective version.

Checking the safety function

We recommend that:
● You check the status for warnings and alarms.
● You check the measurement value limits.
● You simulate different current values.
● You check the measuring accuracy that must be in the range of ± 2% for the safety
function.
– You check the zero point, e.g. in a pressure-less state, for gauge and differential
pressure.
– You check the zero point, e.g. with a defined pressure, for absolute pressure.

Protection against configuration changes

After parameterizing/commissioning:
1. Set the lock mode in Mode 10 to write protection "L".
Operation via keys and HART communication is blocked.
2. Protect the keys from unintended change in the parameters, e.g. by lead-sealing.

SITRANS P, DS III series with HART communication

132 Operating Instructions, 12/2007, A5E00047092-06

310674
 Functional safety
8.2 Device-specific safety instructions

8.2.4 Behavior in case of faults

Repairs
Defective devices should be sent in to the repair department with details of the fault and the
cause. When ordering replacement devices, please specify the serial number of the original
device. The serial number can be found on the rating plate.
The address of the responsible SIEMENS repair center, contacts, spare parts lists, etc. can
be found on the Internet.

See also
Services & Support (http://www.siemens.com/automation/services&support)
Partner (http://www.automation.siemens.com/partner)

8.2.5 Maintenance/Checking

Interval
We recommend that the functioning of the pressure transmitter be checked at regular
intervals of one year.

Checking the safety function

We recommend that:
● You check the status for warnings and alarms.
● You check the measurement value limits.
● You simulate different current values.
● You check the measuring accuracy that must be in the range of ± 2% for the safety
function.
– You check the zero point, e.g. in a pressure-less state, for gauge and differential
pressure.
– You check the zero point, e.g. with a defined pressure, for absolute pressure.

Checking safety
You should regularly check the safety function of the entire safety circuit in line with IEC
61508/61511. The testing intervals are determined during the calculation for each individual
safety circuit in a system (PFDAVG).

Electronics
The safety function of the transmitter is ensured only with the electronics delivered by the
factory. It cannot be replaced.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 133

310674
Functional safety
8.2 Device-specific safety instructions

8.2.6 Safety characteristics

The safety characteristics necessary for using the system are listed in the "SIL declaration of
conformity". These values apply under the following conditions:
● The SITRANS P pressure transmitter is only used in applications with a low demand rate
for the safety function (low demand mode).
● Communication with the HART protocol is used only for the following:
– Device configuration
– Reading diagnostic values
– However, it is not used for operations critical to safety. In particular, the trace function
must not be activated in safety related operation.
● The safety-related parameters/settings have been entered by local operation or HART
communication before commencing safety-instrumented operation. They are checked on
the local display.
(see "Settings" section)
● The safety function test is concluded successfully.
● The transmitter is blocked against unwanted and unauthorized changes/operation.
● The current signal of 4 to 20 mA of the transmitter is evaluated by a safe system.
● The calculation of fault rates is based on a Mean Time To Repair (MTTR) of eight hours.

See also
Settings (Page 132)

SITRANS P, DS III series with HART communication

134 Operating Instructions, 12/2007, A5E00047092-06

310674
Commissioning 9
9.1 Safety notes for commissioning

WARNING
"explosion-proof" type of protection
Devices with the "explosion-proof" type of protection may only be opened in the hazardous
area only in a de-energized state.

WARNING
Hazardous areas
If the transmitters are to be used as category 1/2 operational resources, please observe the
type examination certificates or the test certifications applicable in your country.

WARNING
Incorrect or improper use of the shut-off modules can lead to serious physical injuries or
considerable damage to property.

WARNING
Using toxic substances
The transmitter should not be depressurized if toxic substances are being used.

WARNING
Intrinsically safe circuits
With intrinsically-safe circuits, use only certified ammeters appropriate for the transmitter.
"Intrinsically safe"
If a non-conforming supply unit is used, the "fail-safe" type of protection will no longer be
effective and the approval certification will be invalid.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 135

310674
Commissioning
9.2 Notes on commissioning

WARNING
Laying of cables
Connect the devices that are operated in hazardous areas as per the stipulations applicable
in your country, e.g. for Ex "d" and "nA", permanent cables must be laid.

WARNING
Devices with the common approval "Intrinsically safe" and "Flameproof"
The following is applicable for devices with the common approval "Intrinsically safe" and
"Flameproof" (EEx ia and EEx d):
The type of protection that is not suitable must be permanently defaced on the type plate
before commissioning.

NOTICE
Before commissioning, check the basic parameters.
Due to changes in the operating functions, the display and the measurement output could
be set such that the actual process pressure is not reproduced.

9.2 Notes on commissioning

Note
In order to obtain stable measured values, the transmitter must be allowed to warm up for at
least 5 minutes after the power supply is switched on.
The order data must match with the values given on the type plate. The transmitter is in
operation as soon as the power supply is switched on.
The following cases of commissioning can be taken as the typical examples. Changing the
arrangements specified here may be practical depending on the system configuration.

9.3 Introduction to commissioning

Following commissioning, the transmitter is immediately ready for use.
To obtain stable measured values, the transmitter needs to be allowed to warm up for five
minutes or so after the power supply is switched on.
The measuring span which can be set corresponds to the information on the nameplate.
Even in the case of a customer-specific setting configured in the factory, the zero point and
the limit point will appear on the nameplate.
If need be, you can change the parameters by simple user operations on the device even
during commissioning.

SITRANS P, DS III series with HART communication

136 Operating Instructions, 12/2007, A5E00047092-06

310674
 Commissioning
9.4 Gauge pressure, absolute pressure from the differential pressure series and absolute pressure from the gauge pressur

9.4 Gauge pressure, absolute pressure from the differential pressure

series and absolute pressure from the gauge pressure series

9.4.1 Commissioning for gases

Overview
Usual arrangement Special arrangement





 





 


Measuring gases above the pressure Measuring gases below the pressure
tapping point tapping point

① Pressure transmitter
② Shut-off module
③ Shut-off valve to process
④ Shut-off valve for test connection or for bleed screw
⑤ Pressure line
⑥ Shut-off valve
⑦ Shut-off valve (optional)

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 137

310674
Commissioning
9.4 Gauge pressure, absolute pressure from the differential pressure series and absolute pressure from the
gauge pressure series

⑧ Condensation vessel (optional)

⑨ Drain valve

Condition
All valves are closed.

Procedure
To commission the transmitter for gases, proceed as follows:
1. Open the shut-off valve for the test connection ③.
2. Via the test connection of the shut-off module ②, apply the pressure corresponding to the
start of scale value to the pressure transmitter ①.
3. Check the start of scale value.
4. If the start of scale value differs from the value desired, correct it.
5. Close the shut-off valve for the test connection ④..
6. Open the shut-off valve ⑥ at the pressure tapping point.
7. Open the shut-off valve for the process ③.

9.4.2 Commissioning with steam or liquid

Overview




 


Figure 9-1 Measuring steam

SITRANS P, DS III series with HART communication

138 Operating Instructions, 12/2007, A5E00047092-06

310674
 Commissioning
9.5 Differential pressure and flow rate

① Pressure transmitter
② Shut-off module
③ Shut-off valve to process
④ Shut-off valve for test connection or for bleed screw
⑤ Pressure line
⑥ Shut-off valve
⑦ Drain valve
⑧ Compensation vessel (steam only)

Condition
All valves are closed.

Procedure
To commission the transmitter for steam or liquid, proceed as follows:
1. Open the shut-off valve for the test connection ④.
2. Via the test connection of the shut-off module ②, apply the pressure corresponding to the
start of scale value to the pressure transmitter ①.
3. Check the start of scale value.
4. If the start of scale value differs from the value desired, correct it.
5. Close the shut-off valve for the test connection ④.
6. Open the shut-off valve ⑥ at the pressure tapping point.
7. Open the shut-off valve for the process ③.

9.5 Differential pressure and flow rate

9.5.1 Safety notes for commissioning with differential pressure and flow rate

WARNING
Ensure that the locking screw and/or the vent valve are connected and adequately fixed.
Ensure that the valves are operated correctly and properly.
If the lock screws are missing or are not sufficiently tight, and/or if the valves are operated
incorrectly or improperly, it could lead to serious physical injuries or considerable damage
to property.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 139

310674
Commissioning
9.5 Differential pressure and flow rate

WARNING
Hot mediums
In the case of hot mediums, the individual operational steps should be carried out one after
the other. Otherwise, it could lead to excessive heating, thus causing damage to the valves
and the transmitter.

9.5.2 Commissioning in gaseous environments

Overview

Usual arrangement Special arrangement

  




 
  

 

 

 

 

 

Transmitter above the differential Transmitter below the

pressure transducer differential pressure transducer

SITRANS P, DS III series with HART communication

140 Operating Instructions, 12/2007, A5E00047092-06

310674
 Commissioning
9.5 Differential pressure and flow rate

① Pressure transmitter
② Stabilizing valve
③,④ Differential pressure valves
⑤ Differential pressure lines
⑥ Shut-off valves
⑦ Blowout valves
⑧ Condensation vessels (optional)
⑨ Differential pressure transducer

Condition
All shut-off valves are closed.

Procedure
To commission the transmitter for gases, proceed as follows:
1. Open both the shut-off valves ⑥ at the pressure tapping point.
2. Open the stabilizing valve ②.
3. Open the differential pressure valve (③ or ④).
4. Check and if required correct the zero point when the start of scale value is 0 mbar
(4 mA).
5. Close the stabilizing valve ②.
6. Open the other differential pressure valve (③ or ④).

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 141

310674
Commissioning
9.5 Differential pressure and flow rate

9.5.3 Commissioning for liquids

Overview

Usual arrangement Special arrangement

 
 

  

   


   
  


 


  

Transmitter below the differential Transmitter above the

pressure transducer differential pressure transducer

① Pressure transmitter
② Stabilizing valve
③,④ Differential pressure valves
⑤ Differential pressure lines
⑥ Shut-off valves
⑦ Blowout valves
⑧ Gas collector vessels (optional)
⑨ Differential pressure transducer
⑩ Vent valves

SITRANS P, DS III series with HART communication

142 Operating Instructions, 12/2007, A5E00047092-06

310674
 Commissioning
9.5 Differential pressure and flow rate

Condition
All valves are closed.

Procedure

WARNING
The transmitter should not be depressurized if toxic substances are being used.

To commission the transmitter with liquids, proceed as follows:

1. Open both the shut-off valves ⑥ at the pressure tapping point.
2. Open the stabilizing valve ②.
3. In the case of Transmitter below the differential pressure transducer Open both the
blowout valves one after the other ⑦ until the air-free liquid emerges.
In the case of a transmitter above the differential pressure transducer, open both the vent
valves one after the other ⑩ until the liquid emerges.
4. Close both the blowout valves ⑦ or vent valves ⑩.
5. Open the differential pressure valve ③ and the vent valve at the plus chamber of the
transmitter ① until the liquid emerges.
6. Close the vent valve.
7. Open the vent valve at the minus chamber of the transmitter ① until the liquid emerges.
8. Close the differential pressure valve ③.
9. Open the differential pressure valve ④ until the liquid emerges and then close it.
10.Close the vent valve at the minus chamber of the transmitter ①.
11.Open the differential pressure valve ③ by rotating it in half a turn.
12.Check and if required correct the zero point in case of start of scale value 0 bar (4 mA).
13.Close the stabilizing valve ②.
14.Open the differential pressure valves (③ and ④) completely.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 143

310674
Commissioning
9.5 Differential pressure and flow rate

9.5.4 Commissioning with vapor

Overview

 

   

 

 

 


Figure 9-2 Measuring steam

① Pressure transmitter
② Stabilizing valve
③,④ Differential pressure valves
⑤ Differential pressure lines
⑥ Shut-off valves
⑦ Blowout valves
⑧ Condensate pots
⑨ Differential pressure transducer
⑩ Insulation

SITRANS P, DS III series with HART communication

144 Operating Instructions, 12/2007, A5E00047092-06

310674
 Commissioning
9.5 Differential pressure and flow rate

Condition
All valves are closed.

Procedure

CAUTION
The measuring result is error-free only if the differential pressure lines ⑤ have equally high
condensate columns with the same temperature. The zero calibration must be repeated if
required if these conditions are fulfilled. If the shut-off valves ⑥ and the differential pressure
valves ③ are open at the same time and the stabilizing valve ② is opened, there is a
possibility of the transmitter ① being damaged due to the streaming vapor.

To commission the transmitter for vapor, proceed as follows:

1. Open both the shut-off valves ⑥ at the pressure tapping point.
2. Open the stabilizing valve ②.
3. Wait till the vapor in the differential pressure lines ⑤ and in the condensate pots ⑧
condenses.
4. Open the differential pressure valve ③ and the vent valve at the plus chamber of the
transmitter ① till the air-free condensate.
5. Close the vent valve.
6. Open the vent valve at the minus chamber of the transmitter ① till the air-free condensate
goes out.
7. Close the differential pressure valve ③.
8. Open the differential pressure valve ④ till the air-free condensate goes out and then
close it.
9. Close the vent valve at the minus chamber ①.
10.Open the differential pressure valve ③ by rotating it in half a turn.
11.Check and if required correct the zero point in case of start of scale value 0 bar (4 mA).
12.Close the stabilizing valve ②.
13.Open the differential pressure valve ③ and ④ completely.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 145

310674
Commissioning
9.5 Differential pressure and flow rate

SITRANS P, DS III series with HART communication

146 Operating Instructions, 12/2007, A5E00047092-06

310674
Service and maintenance 10
10.1 Notes for servicing

Note
Depending on the use of the device and certain empirical values, determine a maintenance
interval for the tests to be carried out repeatedly.
The maintenance interval is influenced by the corrosion resistance depending on the site of
use.

Note
Checking the gaskets
Check the gaskets of the pressure transmitter at regular intervals. Grease or replace the
gaskets if required.

10.2 Display in case of a fault

Check the start of scale value of the device from time to time.
Differentiate between the following in case of a fault:
● The internal self test has detected a fault, e.g. sensor break, hardware fault/Firmware
fault.
Displays:
– Digital display: "ERROR" display and ticker with an error text
– Analog output: Factory setting: Failure current 3.6 or 22.8 mA
Or depending on the parameterization
– HART: detailed error breakdown for display in the HART communicator or SIMATIC
PDM
● Grave hardware faults, the processor is not functioning.
Displays:
– Digital display: no defined display
– Analog output: failure current < 3.6 mA
In case of defect, you can replace the electronic unit by following the warning notes and the
provided instruction manual.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 147

310674
Service and maintenance
10.3 Modular structure

See also
Modular structure (Page 148)
Error display (Page 59)

10.3 Modular structure

Safety note

NOTICE
The structure of this device is modular. You can thus replace different parts with original
spare parts. When replacing components, always adhere to the notes provided with the
components to be replaced.
This is especially applicable for devices that are used in hazardous areas.

Related
Both the individual components "Measuring cell" and "Electronics" always have a non-
volatile memory (EEPROM). Every EEPROM has a data structure that is permanently
allocated to the measuring cel, or the electronics. Measuring cell data (e.g.: measuring
range, measuring cell material, oil filling) are stored in the EEPROM of the measuring cell.
Data of the electronics (e.g.: downscaling, electrical additional damping) is located in the
EEPROM of the electronics. It is thus ensured that the data that is relevant for the remaining
components is retained when replacing the electronic unit.
Before starting the replacement work, you have the following setting options via HART:
● After replacement, the common measuring range settings from the measuring cell or from
the electronic unit are adopted.
● A standard parameterization is carried out.
The measuring accuracy in the specified measuring limits with a 1:1 downscaling can be
reduced by the temperature error in unfavorable cases.
In the course of further technical development, it is possible to implement advanced
functions in the measuring cell or the electronic unit. This is indicated by modified Firmware
statuses (FW). The Firmware status does not have an effect on the replaceability. The scope
of functions however is limited to the functioning of the older components.
If a combination of certain Firmware statuses of measuring cell and electronic unit is not
possible due to technical reasons, the device identifies this status and goes into the "Fault
current" status. This information is provided via the HART interface.

SITRANS P, DS III series with HART communication

148 Operating Instructions, 12/2007, A5E00047092-06

310674
 Service and maintenance
10.4 Notes for servicing of the remote seal

10.4 Notes for servicing of the remote seal

The remote seal measuring system usually does not need servicing.
If the mediums are contaminated, viscous or crystallized, it could be necessary to clean the
diaphragm from time to time. Use only a soft brush and a suitable solvent to remove the
deposits from the diaphragm. Do not use corrosive cleaning agents. Prevent the diaphragm
from getting damaged due to sharp-edged tools.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 149

310674
Service and maintenance
10.4 Notes for servicing of the remote seal

SITRANS P, DS III series with HART communication

150 Operating Instructions, 12/2007, A5E00047092-06

310674
Technical data 11
11.1 Overview of technical data

Introduction
The following overview of technical data provides you with a quick and easy access to
relevant data and characteristic numbers.
Remember that the tables partially contain the data of the three communication types HART,
PROFIBUS and FoundationFieldbus. This data deviates in many cases. Therefore, adhere
to the communication type used by you when using the technical data.

Contents of the chapter

● Input point (Page 152)
● Output (Page 157)
● Measuring accuracy (Page 158)
● Operating conditions (Page 164)
● Construction (Page 167)
● Display, keyboard and auxiliary power (Page 171)
● Certificates and approvals (Page 172)
● HART communication (Page 173)

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 151

310674
Technical data
11.2 Input point

11.2 Input point

DS III input with PMC connection

HART PROFIBUS PA or Foundation Fieldbus
Measured variable Gauge pressure
Measuring span Measuring Maximum Maximum Measuring Maximum Maximum
(continuously adjustable) range permissible permissible span permissible permissible
or measuring range, max operating test operating test pressure
permissible operating pressure pressure pressure
pressure and max. 0.01 … 1 bar g 4 bar g 6 bar g 1 bar g 4 bar g 6 bar g
permissible test pressure (0.15 … (58 psi g) (87 psi g) (14.5 psi g) 1) (58 psi g) (87 psi g)
14.5 psi g) 1)
0.04 … 4 bar g 7 bar g 10 bar g 4 bar g 7 bar g 10 bar g
(0.58 … (102 psi g) (145 psi g) (58 psi g) (102 psi g) (145 psi g)
58 psi g)
0.16 … 21 bar g 32 bar g 16 bar g 21 bar g 32 bar g
16 bar g (2.3 (305 psi g) (464 psi g) (232 psi g) (305 psi g) (464 psi g)
… 232 psi g)
Lower measuring limit
• Measuring cell with 100 mbar a (1.45 psi a)
silicon oil filling 2)
• Measuring cell with 100 mbar a (1.45 psi a)
inert liquid 2)
• Measuring cell with 30 mbar a (0.44 psi a)
neobee 2)
Upper measuring limit 100 % of the max. measuring range 100% of maximum measuring span
1) 1 bar g (14.5 psi g) only in PMC-Style Standard, not in Minibolt
2) For PMC-Style Minibolt, the measuring span should not be less than 500 mbar

Gauge pressure input

HART PROFIBUS PA or Foundation Fieldbus
Measured variable Gauge pressure
Measuring span Measuring Maximum Maximum Measuring Maximum Maximum
(continuously adjustable) range permissible permissible span permissible permissible
or measuring range, max operating test operating test pressure
permissible operating pressure pressure pressure
pressure (as per 0.01 … 1 bar g 4 bar g 6 bar g 1 bar g 4 bar g 6 bar g
97/23/EC pressure device (0.15 … (58 psi g) (87 psi g) (14.5 psi g) (58 psi g) (87 psi g)
guideline) and max. 14.5 psi g)
permissible test pressure
(as per DIN 16086) (for 0.04 … 4 bar g 7 bar g 10 bar g 4 bar g 7 bar g 10 bar g
oxygen measurement (0.58 … (102 psi g) (145 psi g) (58 psi g) (102 psi g) (145 psi g)
max. 160 bar) 58 psi g)
0.16 … 21 bar g 32 bar g 16 bar g 21 bar g 32 bar g
16 bar g (2.3 (305 psi g) (464 psi g) (232 psi g) (305 psi g) (464 psi g)
… 232 psi g)

SITRANS P, DS III series with HART communication

152 Operating Instructions, 12/2007, A5E00047092-06

310674
 Technical data
11.2 Input point

Gauge pressure input

HART PROFIBUS PA or Foundation Fieldbus
0.63 … 63 bar 67 bar g 100 bar g 63 bar g 67 bar g 100 bar g
g (9.1 … (972 psi g) (1450 psi g) (914 psi g) (972 psi g) (1450 psi g)
914 psi g)
1.6 … 167 bar g 250 bar g 160 bar g 167 bar g 250 bar g
160 bar g (23 (2422 psi g) (3626 psi g) (2321 psi g) (2422 psi g) (3626 psi g)
… 2321 psi g)
4 … 400 bar g 400 bar g 600 bar g 400 bar g 400 bar g 600 bar g
(58 … (5802 psi g) (8702 psi g) (5802 psi g) (5802 psi g) (8702 psi g)
5802 psi g)
Lower measuring limit
• Measuring cell with 30 mbar a (0.44 psi a)
silicon oil filling
• Measuring cell with 30 mbar a (0.44 psi a)
inert liquid
Upper measuring limit 100 % of the max. measuring range (for 100 % of the max. measuring span (for oxygen
oxygen measurement max. 160 bar g measurement max. 160 bar g (2321 psi g))
(2321 psi g))
Start of scale value between the measuring limits (continuously adjustable)

gauge pressure input, with flush mounted diaphragm

HART PROFIBUS PA or Foundation Fieldbus
Measured variable Gauge pressure
Measuring span Measuring Maximum Maximum Measuring Maximum Maximum
(continuously adjustable) range permissible permissible span permissible permissible
or measuring range, max operating test operating test pressure
permissible operating pressure pressure pressure
pressure and max. 8… 4 bar g 6 bar g 250 mbar g 4 bar g 6 bar g
permissible test pressure 250 mbar g (58 psi g) (87 psi g) (3.6 psi g) (58 psi g) (87 psi g)
(0.12 …
3.6 psi g)
0.01 … 1 bar g 4 bar g 6 bar g 1 bar g 4 bar g 6 bar g
(0.15 … (58 psi g) (87 psi g) (14.5 psi g) (58 psi g) (87 psi g)
14.5 psi g)
0.04 … 4 bar g 7 bar g 10 bar g 4 bar g 7 bar g 10 bar g
(0.58 … (102 psi g) (145 psi g) (58 psi g) (102 psi g) (145 psi g)
58 psi g)
0.16 … 21 bar g 32 bar g 16 bar g 21 bar g 32 bar g
16 bar g (2.3 (305 psi g) (464 psi g) (232 psi g) (305 psi g) (464 psi g)
… 232 psi g)
0.6 … 63 bar g 67 bar g 100 bar g 63 bar g 67 bar g 100 bar g
(9.1 … (972 psi g) (1450 psi g) (914 psi g) (972 psi g) (1450 psi g)
914 psi g)
Lower measuring limit
• Measuring cell with 100 mbar a (1.45 psi a)
silicon oil filling

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 153

310674
Technical data
11.2 Input point

gauge pressure input, with flush mounted diaphragm

HART PROFIBUS PA or Foundation Fieldbus
• Measuring cell with 100 mbar a (1.45 psi a)
inert liquid
• Measuring cell with 30 mbar a (0.44 psi a)
neobee
Upper measuring limit 100 % of the max. measuring range 100% of maximum measuring span

Absolute pressure input (from the gauge pressure series)

HART PROFIBUS PA or Foundation Fieldbus
Measured variable Absolute pressure
Measuring span Measuring Maximum Maximum Measuring Maximum Maximum
(continuously adjustable) range permissible permissible span permissible permissible
or measuring range, max operating test operating test pressure
permissible operating pressure pressure pressure
pressure (as per 8.3 … 1.5 bar a 6 bar a 250 mbar a 1.5 bar a 6 bar a
97/23/EC pressure device 250 mbar a (21.8 psi a) (87 psi a) (3.6 psi a) (21.8 psi a) (87 psi a)
guideline) and max. (0.12 …
permissible test pressure 3.6 psi a)
(as per DIN 16086)
43 … 2.6 bar a 10 bar a 1.3 bar a 2.6 bar a 10 bar a
1300 mbar a (37.7 psi a) (145 psi a) (18.9 psi a) (37.7 psi a) (145 psi a)
(0.62 …
18.9 psi a)
160 … 10 bar a 30 bar a 5 bar a 10 bar a 30 bar a
5000 bar a (145 psi a) (435 psi a) (72.5 psi a) (145 psi a) (435 psi a)
(2.32 …
72.5 psi a)
1 … 30 bar a 45 bar a 100 bar a 3 bar a 45 bar a 100 bar a
(14.5 … (653 psi a) (1450 psi a) (435 psi a) (653 psi a) (1450 psi a)
435 psi a)
Lower measuring limit
• Measuring cell with 0 mbar a (0 psi a)
silicon oil filling
• Measuring cell with 0 mbar a (0 psi a)
inert liquid
for process 30 mbar a (0.44 psi a)
temperature -20°C <
ϑ ≤ 60°C (-4°F < ϑ
≤ +140°F)
for process 30 mbar a + 20 mbar a • (ϑ - 60°C)/°C
temperature 60°C < (0.44 psi a + 0.29 mbar a • (ϑ - 108°F)/°F)
ϑ ≤ 100°C (max.
85°C for measuring
cell 30 bar) (140°F <
ϑ ≤ 212°F (max.
185°F for measuring
cell 435 psi))

SITRANS P, DS III series with HART communication

154 Operating Instructions, 12/2007, A5E00047092-06

310674
 Technical data
11.2 Input point

Absolute pressure input (from the gauge pressure series)

HART PROFIBUS PA or Foundation Fieldbus
Upper measuring limit 100 % of the max. measuring range (for 100 % of the max. measuring span (for oxygen
oxygen measurement max. 160 bar g measurement max. 160 bar g (2321 psi g))
(2321 psi g))
Start of scale value between the measuring limits (continuously adjustable)

Absolute pressure input (from the differential pressure series)

HART PROFIBUS PA or Foundation Fieldbus
Measured variable Absolute pressure
Measuring span Measuring range Overload limits Measuring span Overload limits
(continuously adjustable) 8.3 … 250 mbar a 32 bar a (464 psi a) 250 mbar a 32 bar a (464 psi a)
or measuring range and (0.12 … 3.6 psi a) (3.6 psi a)
max permissible
operating pressure (as 43 … 1300 mbar a 32 bar a (464 psi a) 1300 mbar a 32 bar a (464 psi a)
per 97/23/EC pressure (0.62 … 18.9 psi a) (18.9 psi a)
device guideline) 160 … 5000 bar a 32 bar a (464 psi a) 5 bar a (72.5 psi a) 32 bar a (464 psi a)
(2.32 … 72.5 psi a)
1 … 30 bar a 160 bar a (2320 psi a) 30 bar a (435 psi a) 160 bar a (2320 psi a)
(14.5 … 435 psi a)
5.3 … 100 bar a 160 bar a (2320 psi a) 100 bar a 160 bar a (2320 psi a)
(76.9 … 1450 psi a) (for connection thread (1450 psi a) (for connection thread
M10 and 7/16-20 UNF M10 and 7/16-20 UNF in
in the pressure caps) the pressure caps)
Lower measuring limit
• Measuring cell with 0 mbar a (0 psi a)
silicon oil filling
• Measuring cell with
inert liquid
for process 30 mbar a (0.44 psi a)
temperature -20°C <
ϑ ≤ 60°C (-4°F < ϑ
≤ +140°F)
for process 30 mbar a + 20 mbar a • (ϑ - 60°C)/°C
temperature 60°C < (0.44 psi a + 0.29 mbar a • (ϑ - 108°F)/°F)
ϑ ≤ 100°C (max.
85°C for measuring
cell 30 bar) (140°F <
ϑ ≤ 212°F (max.
185°F for measuring
cell 435 psi))
Upper measuring limit 100 % of the max. measuring range (for 100 % of the max. measuring span (for oxygen
oxygen measurement max. 160 bar g measurement max. 160 bar g (2321 psi g))
(2321 psi g))
Start of scale value between the measuring limits (continuously adjustable)

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 155

310674
Technical data
11.2 Input point

Differential pressure and flow rate input

HART PROFIBUS PA or Foundation Fieldbus
Measured variable Differential pressure and flow rate
Measuring span Measuring range Maximum Measuring span Maximum permissible
(continuously adjustable) permissible operating pressure
or measuring range and operating pressure
max permissible 1 … 20 mbar (0.4015 32 bar (464 psi) 20 mbar 32 bar a (464 psi)
operating pressure (as … 8.031 inH2O) (8.031 inH2O)
per 97/23/EC pressure
device guideline) 1 … 60 mbar (0.4015 160 bar (2320 psi) 60 mbar 160 bar (2320 psi)
… 24.09 inH2O) (24.09 inH2O)
2.5 … 250 mbar 250 mbar
(1.004 … 100.4 inH2O) (100.4 inH2O)
6 … 600 mbar 600 mbar
(2.409 … 240.9 inH2O) (240.9 inH2O)
16 … 1600 mbar 1600 mbar
(6.424 … 642.4 inH2O) (642.4 inH2O)
50 … 5000 mbar 5 bar
(20.08 … 2008 inH2O) (2008 inH2O)
0.3 … 30 bar (4.35 … 30 bar
435 psi) (435 psi)
2.5 … 250 mbar 420 bar (6091 psi) 250 mbar 420 bar (6091 psi)
(1.004 … 100.4 inH2O) (100.4 inH2O)
6 … 600 mbar 600 mbar
(2.409 … 240.9 inH2O) (240.9 inH2O)
16 … 1600 mbar 1600 mbar
(6.424 … 642.4 inH2O) (642.4 inH2O)
50 … 5000 mbar 5 bar
(20.08 … 2008 inH2O) (2008 inH2O)
0.3 … 30 bar (4.35 … 30 bar
435 psi) (435 psi)
Lower measuring limit
• Measuring cell with -100% of the max. measuring range (-33% for measuring cell (435 psi)) or 30 mbar a
silicon oil filling (0.44 psi a)
• Measuring cell with
inert liquid
for process -100% of the max. measuring range (-33% for measuring cell (435 psi)) or 30 mbar a
temperature -20°C < (0.44 psi a)
ϑ ≤ 60°C (-4°F < ϑ
≤ +140°F)
for process • -100% of the max. measuring range (-33% for measuring cell (435 psi))
temperature 60°C < • 30 mbar a + 20 mbar a • (ϑ - 60°C)/°C
ϑ ≤ 100°C (max. (0.44 psi a + 0.29 mbar a • (ϑ - 108°F)/°F)
85°C for measuring
cell 30 bar) (140°F <
ϑ ≤ 212°F (max.
185°F for measuring
cell 435 psi))

SITRANS P, DS III series with HART communication

156 Operating Instructions, 12/2007, A5E00047092-06

310674
 Technical data
11.3 Output

Differential pressure and flow rate input

HART PROFIBUS PA or Foundation Fieldbus
Upper measuring limit 100 % of the max. measuring range (for 100 % of the max. measuring span (for oxygen
oxygen measurement max. 160 bar g measurement max. 160 bar g (2321 psi g))
(2321 psi g))
Start of scale value between the measuring limits (continuously adjustable)

Level input
HART PROFIBUS PA or Foundation Fieldbus
Measured variable Level
Measuring span Measuring range Maximum permissible Measuring span Maximum permissible
(continuously adjustable) operating pressure operating pressure
or measuring range and 25 … 250 mbar see the mounting 250 mbar see the mounting flange
max permissible (0.36 … 3.63 psi) flange (3.63 psi)
operating pressure (as
per 97/23/EC pressure 25 … 600 mbar 600 mbar (8.7 %)
device guideline) (0.36 … 8.7 %)
53 … 1600 mbar 1600 mbar
(0.77 … 23.2 psi) (23.2 psi)
160 … 5000 mbar 5 bar
(2.32 … 72.5 psi) (72.5 psi)
Lower measuring limit
• Measuring cell with -100% of the max. measuring range or 30 mbar a (0.44 psi a) depending on the mounting
silicon oil filling flange
• Measuring cell with -100% of the max. measuring range or 30 mbar a (0.44 psi a) depending on the mounting
inert liquid flange
Upper measuring limit 100 % of the max. measuring range 100% of maximum measuring span
Start of scale value between the measuring limits continuously adjustable

11.3 Output

Output
HART PROFIBUS PA or Foundation Fieldbus
Output signal 4 … 20 mA Digital PROFIBUS-PA or
Foundation Fieldbus signal
• Lower limit (continuously 3.55 mA, set to 3.84 mA in the factory –
adjustable)
• Upper limit (continuously 23 mA, set to 20.5 mA or optionally –
adjustable) 22.0 mA in the factory
• Ripple (without HART ISS ≤ 0.5 % of the max. output current –
communication)
settable time constants (T63) 0 … 100 s, in steps of 0.1 s 0 … 100 s, in steps of 0.1 s
set to 0.1 s in the factory set to 0.1 s in the factory

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 157

310674
Technical data
11.4 Measuring accuracy

Output
HART PROFIBUS PA or Foundation Fieldbus
• Current transmitter 3.55 … 23 mA –
• Failure signal 3.55 … 23 mA –
Load Resistor R [Ω] –
• Without HART communication 8+9 –
5
P$

UH Power supply in V
• With HART communication –
HART communicator R =230 … 500 Ω –
SIMATIC PDM R =230 … 1100 Ω –
Characteristic curve • Linearly increasing or linearly decreasing
• Linear increase or decrease or square root extracting increasing (only for
DS III differential pressure and flow rate)
Bus physics – IEC 61158-2
Polarity-independent – Yes

11.4 Measuring accuracy

Measuring accuracy (as per EN 60770-1) DS III with PMC connection

HART PROFIBUS PA or Foundation Fieldbus
Reference conditions • Rising characteristic curve
• Start of scale value 0 bar
• Seal diaphragm: stainless steel
• Measuring cell with silicon oil filling
• Room temperature 25°C (77°F)
• Measuring span ratio r –
r = maximum measuring span or set
measuring span
Measurement deviation with cut-off
point setting, including hysteresis and
repeatability.
Linear characteristic curve ≤ 0.075 %
• r ≤ 10 ≤ (0.0029 • r + 0.071) % –
• 10 < r ≤ 30 ≤ (0.0045 • r + 0.071) % –
• 30 < r ≤ 100 *) ≤ (0.005 • r + 0.05) % –
Repeatability Included in the measuring deviation
Hysteresis Included in the measuring deviation
Settling time T63 without electrical approx. 0.2 s
damping

SITRANS P, DS III series with HART communication

158 Operating Instructions, 12/2007, A5E00047092-06

310674
 Technical data
11.4 Measuring accuracy

Measuring accuracy (as per EN 60770-1) DS III with PMC connection

HART PROFIBUS PA or Foundation Fieldbus
Long-term drift at ±30°C (±54°F) In 5 years In 5 years
≤ (0.25 • r) % ≤ 0.25 %
Effect of the ambient temperature As percentage
(double values for measuring cell
20 mbar g (0.29 psi g))
• at -10 … +60°C (14 … 140°F) ≤ (0.1 • r + 0.1) % ≤ 0.3 %
• at -40 … -10°C and ≤ (0.1 • r + 0.15) % per 10 K ≤ 0.25 % per 10 K
+60 … +85°C
(-40 … 14°F and 140 … 185°F)
Process temperature influence In pressure per temperature change
• Temperature difference between 3 mbar per 10 K (0.04 psi per 10 K)
process temperature and ambient
temperature
Influence of mounting position In pressure per change in angle
≤ 0.1 mbar g (0.00145 psi g) per 10° inclination
correction via zero offset
Power supply influence In percent per change in voltage –
0.005 % per 1 V
Measuring value resolution – 3 • 10-5 from the nominal measuring
span
*) not for 4 bar PMC Minibolt

Measuring accuracy (as per EN 60770-1) gauge pressure

HART PROFIBUS PA or Foundation Fieldbus
Reference conditions • Rising characteristic curve
• Start of scale value 0 bar
• Seal diaphragm: stainless steel
• Measuring cell with silicon oil filling
• Room temperature 25°C (77°F)
• Measuring span ratio r –
r = maximum measuring span or set
measuring span
Measurement deviation with cut-off
point setting, including hysteresis and
repeatability.
Linear characteristic curve ≤ 0.075 %
• r ≤ 10 ≤ (0.0029 • r + 0.071) % –
• 10 < r ≤ 30 ≤ (0.0045 • r + 0.071) % –
• 30 < r ≤ 100 ≤ (0.005 • r + 0.05) % –
Repeatability Included in the measuring deviation
Hysteresis Included in the measuring deviation
Settling time T63 without electrical approx. 0.2 s
damping
Long-term drift at ±30°C (±54°F) In 5 years In 5 years
≤ (0.25 • r) % ≤ 0.25 %

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 159

310674
Technical data
11.4 Measuring accuracy

Measuring accuracy (as per EN 60770-1) gauge pressure

HART PROFIBUS PA or Foundation Fieldbus
Effect of the ambient temperature As percentage
(double values for measuring cell
20 mbar g (0.29 psi g))
• at -10 … +60°C (14 … 140°F) ≤ (0.1 • r + 0.1) % ≤ 0.3 %
• at -40 … -10°C and ≤ (0.1 • r + 0.15) % per 10 K ≤ 0.25 % per 10 K
+60 … +85°C
(-40 … 14°F and 140 … 185°F)
Influence of mounting position ≤ 0.05 mbar g (0.000725 psi g) per 10° inclination
correction via zero offset
Power supply influence In percent per change in voltage –
0.005 % per 1 V
Measuring value resolution – 3 • 10-5 from the nominal measuring
span

Gauge pressure measuring accuracy, with flush mounted diaphragm

HART PROFIBUS PA or Foundation Fieldbus
Reference conditions • Rising characteristic curve
• Start of scale value 0 bar
• Seal diaphragm: stainless steel
• Measuring cell with silicon oil filling
• Room temperature 25°C (77°F)
• Measuring span ratio r –
r = maximum measuring span or set
measuring span
Measurement deviation with cut-off
point setting, including hysteresis and
repeatability.
Linear characteristic curve ≤ 0.075 %
• r ≤ 10 ≤ (0.0029 • r + 0.071) % –
• 10 < r ≤ 30 ≤ (0.0045 • r + 0.071) % –
• 30 < r ≤ 100 ≤ (0.005 • r + 0.05) % –
Settling time T63 without electrical approx. 0.2 s
damping
Long-term drift at ±30°C (±54°F) In 5 years In 5 years
≤ (0.25 • r) % ≤ 0.25 %
Effect of the ambient temperature As percentage
(double values for measuring cell
20 mbar g (0.29 psi g))
• at -10 … +60°C (14 … 140°F) ≤ (0.1 • r + 0.2) % ≤ 0.3 %
• at -40 … -10°C and ≤ (0.1 • r + 0.15) % per 10 K ≤ 0.25 % per 10 K
+60 … +85°C
(-40 … 14°F and 140 … 185°F)
Process temperature influence In pressure per temperature change

SITRANS P, DS III series with HART communication

160 Operating Instructions, 12/2007, A5E00047092-06

310674
 Technical data
11.4 Measuring accuracy

Gauge pressure measuring accuracy, with flush mounted diaphragm

HART PROFIBUS PA or Foundation Fieldbus
• Temperature difference between 3 mbar per 10 K (0.04 psi per 10 K)
process temperature and ambient
temperature
Influence of mounting position In pressure per change in angle
0.4 mbar (0.006 psi) per 10° inclination
Correction via zero offset
Power supply influence In percent per change in voltage –
0.005 % per 1 V
Measuring value resolution – 3 • 10-5 from the nominal measuring
span

Absolute pressure measuring accuracy (from gauge and differential pressure series)
HART PROFIBUS PA or Foundation Fieldbus
Reference conditions • Rising characteristic curve
• Start of scale value 0 bar
• Seal diaphragm: stainless steel
• Measuring cell with silicon oil filling
• Room temperature 25°C (77°F)
• Measuring span ratio r –
r = maximum measuring span or set
measuring span
Measurement deviation with cut-off
point setting, including hysteresis and
repeatability.
Linear characteristic curve ≤ 0.1 %
• r ≤ 10 ≤ 0.1 % –
• 10 < r ≤ 30 ≤ 0.2 % –
Settling time T63 without electrical approx. 0.2 s
damping
Long-term drift at ±30°C (±54°F) per year ≤ (0.1 • r) % per year ≤ 0.1 %
Effect of the ambient temperature As percentage
(double values for measuring cell
20 mbar g (0.29 psi g))
• at -10 … +60°C (14 … 140°F) ≤ (0.1 • r + 0.2) % ≤ 0.3 %
• at -40 … -10°C and ≤ (0.1 • r + 0.15) % per 10 K ≤ 0.25 % per 10 K
+60 … +85°C
(-40 … 14°F and 140 … 185°F)
Influence of mounting position In pressure per change of angle
• for absolute pressure (from the gauge pressure series): 0.05 mbar
(0.000725 psi) per 10° inclination
• for absolute pressure (from the differential pressure series): 0.7 mbar
(0.001015 psi) per 10° inclination
Correction via zero offset
Power supply influence In percent per change in voltage –
0.005 % per 1 V

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 161

310674
Technical data
11.4 Measuring accuracy

Absolute pressure measuring accuracy (from gauge and differential pressure series)
HART PROFIBUS PA or Foundation Fieldbus
Measuring value resolution – 3 • 10-5 from the nominal measuring
span

Differential pressure and flow rate measuring accuracy

HART PROFIBUS PA or Foundation Fieldbus
Reference conditions • Rising characteristic curve
• Start of scale value 0 bar
• Seal diaphragm: stainless steel
• Measuring cell with silicon oil filling
• Room temperature 25°C (77°F)
• Measuring span ratio r –
r = maximum measuring span or set
measuring span
Measurement deviation with cut-off
point setting, including hysteresis and
repeatability.
Linear characteristic curve ≤ 0.075
• r ≤ 10 ≤ (0.0029 • r + 0.071) % –
• 10 < r ≤ 30 ≤ (0.0045 • r + 0.071) % –
• 30 < r ≤ 100 ≤ (0.005 • r + 0.05) % –
Square root extracting characteristic ≤ 0.1 %
curve (flow rate > 50%)
• r ≤ 10 ≤ 0.1 % –
• 10 < r ≤ 30 ≤ 0.2 % –
square root extracting characteristic ≤ 0.2 %
curve (flow rate 25 … 50%)
• r ≤ 10 ≤ 0.2 % –
• 10 < r ≤ 30 ≤ 0.4 % –
Settling time T63 without electrical • approx. 0.2 s
damping • approx 0.3 s for measuring cell 20 and 60 mbar (0.29 and 0.87 psi)
Long-term drift at ±30°C (±54°F) ≤ (0.25 • r) % per five years ≤ 0.25 % per five years
static pressure max. 70 bar g static pressure max. 70 bar g
(1015 psi g) (1015 psi g)
• Measuring cell 20 mbar (0.29 psi) ≤ (0.2 • r) % per year ≤ 0.2 % per year
Effect of the ambient temperature As percentage
(double values for measuring cell
20 mbar g (0.29 psi g))
• At -10 … +60°C (14 … 140°F) ≤ (0.08 • r + 0.1) % ≤ 0.3 %
• At -40 … -10°C and ≤ (0.1 • r + 0.15) % per 10 K ≤ 0.25 % per 10 K
+60 … +85°C
(-40 … 14°F and 140 … 185°F)
Effect of static pressure
• At the start of scale value ≤ (0.15 • r) % per 100 bar (1450 psi) ≤ 0.15% per 100 bar (1450 psi)

SITRANS P, DS III series with HART communication

162 Operating Instructions, 12/2007, A5E00047092-06

310674
 Technical data
11.4 Measuring accuracy

Differential pressure and flow rate measuring accuracy

HART PROFIBUS PA or Foundation Fieldbus
Measuring cell 20 mbar ≤ (0.15 • r) % per 32 bar (464 psi) ≤ 0.15% per 32 bar (464 psi)
(0.29 psi)
• On the measuring span ≤ 0.2 % per 100 bar (1450 psi)
Measuring cell 20 mbar ≤ 0.2 % per 32 bar (464 psi)
(0.29 psi)
Influence of mounting position In pressure per change of angle
≤ 0.7 mbar (0.001015 psi) per 10° inclination
Correction via zero offset
Power supply influence In percent per change in voltage –
0.005 % per 1 V
Measuring value resolution – 3 • 10-5 from the nominal measuring
span

Level measuring accuracy

HART PROFIBUS PA or Foundation Fieldbus
Reference conditions • Rising characteristic curve
• Start of scale value 0 bar
• Seal diaphragm: stainless steel
• Measuring cell with silicon oil filling
• Room temperature 25°C (77°F)
• Measuring span ratio r –
r = maximum measuring span or set
measuring span
Measurement deviation with cut-off
point setting, including hysteresis and
repeatability.
Linear characteristic curve ≤ 0.075
• r ≤ 10 ≤ 0.15 % –
• 10 < r ≤ 30 ≤ 0.3 % –
• 30 < r ≤ 100 ≤ (0.0075 • r + 0.075) % –
Settling time T63 without electrical approx. 0.2 s
damping
Long-term drift at ±30°C (±54°F) ≤ (0.25 • r) % per five years ≤ 0.25 % per five years
static pressure max. 70 bar g static pressure max. 70 bar g
(1015 psi g) (1015 psi g)
Ambient temperature influence As percentage
• At -10 … +60°C (14 … 140°F)
(0.4 instead of 0.2 at 10 < r ≤ 30)
Measuring cell ≤ (0.5 • r + 0.2) % ≤ 0.7 %
250 mbar (3.63 psi)
Measuring cell ≤ (0.3 • r + 0.2) % ≤ 0.5 %
600 mbar (8.7 psi)
Measuring cell 1.6 and 5 bar ≤ (0.25 • r + 0.2) % ≤ 0.45 %
(23.2 and 72.5 psi)

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 163

310674
Technical data
11.5 Operating conditions

Level measuring accuracy

HART PROFIBUS PA or Foundation Fieldbus
• At -40 … -10°C and
+60 … +85°C
(-40 … 14°F and 140 … 185°F)
(double values for 10 < r ≤ 30)
Measuring cell ≤ (0.25 • r + 0.15) %/10 K ≤ 0.4 %/10 K
250 mbar (3.63 psi) (≤ (0.25 • r + 0.15) %/18°F) (≤ 0.4 %/18°F)
Measuring cell ≤ (0.15 • r + 0.15) %/10 K ≤ 0.3 %/10 K
600 mbar (8.7 psi) (≤ (0.15 • r + 0.15) %/18°F) (≤ 0.3 %/18°F)
Measuring cell 1.6 and 5 bar ≤ (0.12 • r + 0.15) %/10 K ≤ 0.27 %/10 K
(23.2 and 72.5 psi) (≤ (0.12 • r + 0.15) %/18°F) (≤ 0.27 %/18°F)
Effect of static pressure
• At the start of scale value
Measuring cell 250 mbar ≤ (0.3 • r) % per nominal pressure ≤ 0.3 % per nominal pressure
(0.29 psi)
Measuring cell ≤ (0.15 • r) % per nominal pressure ≤ 0.15 % per nominal pressure
600 mbar (8.7 psi)
Measuring cell 1.6 and 5 bar ≤ (0.1 • r) % per nominal pressure ≤ 0.1 % per nominal pressure
(23.2 and 72.5 psi)
• On the measuring span ≤ (0.1 • r) % per nominal pressure ≤ 0.1 % per nominal pressure
Influence of mounting position depending on the fill fluid in the mounting flange
Power supply influence In percent per change in voltage
0.005 % per 1 V
Measuring value resolution – 3 • 10-5 from the nominal measuring
span

11.5 Operating conditions

Rated conditions DS III with PMC connection

Installation conditions
Ambient temperature
Note Observe the temperature class in hazardous areas.
• Measuring cell with silicon oil -20 … +85°C (-4 … 185°F)
filling
• Digital display -30 … +85°C (-22 … 185°F)
• Storage temperature -50 … +85°C (-58 … 185°F)
Climate class
• Condensation permitted
Degree of protection (as per IP65
EN 60529)
Electromagnetic Compatibility
• Interference emission and As per EN 61326 and NAMUR NE 21
interference immunity

SITRANS P, DS III series with HART communication

164 Operating Instructions, 12/2007, A5E00047092-06

310674
 Technical data
11.5 Operating conditions

Rated conditions DS III with PMC connection

Medium conditions
• Process temperature -20 … +100°C (-4 … +212°F)

Rated conditions for gauge pressure and absolute pressure (from the gauge pressure series)
Installation conditions
• Installation instruction Process connection vertically downward
Ambient conditions
• Ambient temperature
Note Observe the temperature class in hazardous areas.
Measuring cell with silicon oil --40 … +100°C (-40 … 212°F)
filling
Measuring cell with inert liquid -20 … +100°C (-40 … 212°F)
Digital display -30 … +85°C (-22 … 185°F)
Storage temperature -50 … +85°C (-58 … 185°F)
• Climate class
Condensation Permitted
• Degree of protection (as per IP65
EN 60529)
• Electromagnetic Compatibility
Interference emission and As per EN 61326 and NAMUR NE 21
interference immunity
Medium conditions
• Process temperature
Measuring cell with silicon oil -40 … +100°C (-40 … 212°F)
filling
Measuring cell with inert liquid -20 … +100°C (-40 … 212°F)
in conjunction with dust -20 … +60°C (-4 … 140°F)
explosion protection

Gauge pressure rated conditions, with flush mounted diaphragm

Installation conditions
Ambient temperature
Note Observe the temperature class in hazardous areas.
• Measuring cell with silicon oil -40 … +85°C (-40 … 185°F)
filling
• Measuring cell with inert liquid -40 … +85°C (-40 … 185°F)
• Measuring cell with neobee -10 … +85°C (+14 … 185°F)
• Digital display -30 … +85°C (-22 … 185°F)
• Storage temperature -50 … +85°C (-58 … 185°F)
Climate class
• Condensation permitted
Degree of protection IP65, IP68
In accordance with EN 60 529

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 165

310674
Technical data
11.5 Operating conditions

Gauge pressure rated conditions, with flush mounted diaphragm

Electromagnetic Compatibility
• Interference emission and As per EN 61326 and NAMUR NE 21
interference immunity
Medium conditions
Process temperature
• Measuring cell with silicon oil -40 … +150°C (-40 … 302°F)
filling -40 … +200°C (-40 … 392°F) with temperature decoupler
-10 … +250°C (+14 … 482°F) with temperature decoupler
• Measuring cell with inert liquid -40 … +150°C (-40 … 302°F)
-40 … +200°C (-40 … 392°F) with temperature decoupler
• Measuring cell with neobee -10 … +150°C (+14 … 302°F)
-40 … +200°C (-40 … 392°F) with temperature decoupler

Rated conditions for absolute pressure (from the differential pressure series), differential pressure and flow rate
Installation conditions
• Installation instruction any
Ambient conditions
• Ambient temperature
Note Observe the temperature class in hazardous areas.
Measuring cell with silicon oil -40 … +100°C (-40 … 212°F)
filling
• Measuring cell • -40 … +85°C (-40 … +185°F)
30 bar (435 psi) • for flow rate: -20 … +85°C (-4 … +185°F)
Measuring cell with neobee -20 … +100°C (-4 … 212°F)
Digital display -30 … +85°C (-22 … 185°F)
Storage temperature -50 … +85°C (-58 … 185°F)
• Climate class
Condensation Permitted
• Degree of protection (as per IP65
EN 60529)
• Electromagnetic Compatibility
Interference emission and As per EN 61326 and NAMUR NE 21
interference immunity
Medium conditions
• Process temperature
Measuring cell with silicon oil -40 … +100°C (-40 … 212°F)
filling
• Measuring cell • -40 … +85°C (-40 … +185°F)
30 bar (435 psi) • for flow rate: -20 … +85°C (-4 … +185°F)
Measuring cell with inert liquid -20 … +100°C (-40 … 212°F)
• Measuring cell • -40 … +85°C (-40 … +185°F)
30 bar (435 psi) • for flow rate: -20 … +85°C (-4 … +185°F)
In conjunction with dust -20 … +60°C (-4 … +140°F)
explosion protection

SITRANS P, DS III series with HART communication

166 Operating Instructions, 12/2007, A5E00047092-06

310674
 Technical data
11.6 Construction

Rated conditions for level

Installation conditions
• Installation instruction specified through the flange
Ambient conditions
• Ambient temperature
Note Observe the allocation of the max. permissible operating temperature to the max.
permissible operating pressure of the relevant flange connection.
Measuring cell with silicon oil -40 … +100°C (-40 … 212°F)
filling
Digital display -30 … +85°C (-22 … 185°F)
Storage temperature -50 … +85°C (-58 … 185°F)
• Climate class
Condensation Permitted
• Degree of protection (as per IP65
EN 60529)
• Electromagnetic Compatibility
Interference emission and As per EN 61326 and NAMUR NE 21
interference immunity
Medium conditions
• Process temperature
Measuring cell with silicon oil • Plus side: see the mounting flange
filling • Minus side: -40 … +100°C (-40 … +212°F)

11.6 Construction

DS III construction with PMC connection

Weight approx 1.5 kg (3.3 lb)
Material
• Wetted parts materials
Gasket (standard) PTFE flat gasket
O-ring (minibolt) • FPM (Viton)
• FFPM or NBR (optional)
• Non-wetted parts materials
Electronics housing • Non-copper aluminum die casting GD-AlSi 12 or stainless steel precision
casting, mat. no. 1.4408
• Lacquer on polyester base
• Type plate made of stainless steel
Mounting bracket Steel, zinc plated and yellow chrome plated or stainless steel
Measuring cell filling • Silicone oil
• Neobee M20
• Inert liquid

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 167

310674
Technical data
11.6 Construction

DS III construction with PMC connection

Process connection
• Standard • Flush mounted
• 11/2''
• PMC Standard design
• Minibolt • Flush mounted
• 1''
• PMC Minibolt design
Electrical connection Cable inlet using the following screwed joints:
• Pg 13.5 (adapter)
• M20 x 1.5
• ½-14 NPT
• Han 7D/Han 8U plug connector
• M12 connector

Construction for gauge pressure and absolute pressure (from the gauge pressure series)
Weight approx 1.5 kg (3.3 lb)
Material
• Wetted parts materials
Connection pins Stainless steel, mat. no. 1.4404/316L or Hastelloy C4, mat. no. 2.4610
Oval flange Stainless steel, mat. no. 1.4404/316L
Seal diaphragm Stainless steel, material no. 1.4404/316L or Hastelloy C276, material no. 2.4819
• Non-wetted parts materials
Electronics housing • Non-copper aluminum die casting GD-AlSi 12 or stainless steel precision
casting, mat. no. 1.4408
• Lacquer on polyester base
• Type plate made of stainless steel
Mounting bracket Steel, zinc plated and yellow chrome plated or stainless steel
Measuring cell filling • Silicone oil
• Neobee M20
• Inert liquid
(max. 160 bar g (2320 psi g) for oxygen measurement)
Process connection Connection pin G1/2A as per DIN EN 837-1; female thread 1/2-14 NPT or oval
flange (PN 160 (MWP 2320 psi g)) with fastening screw thread M10 as per
DIN 19213 or 7/16-20 UNF as per EN 61518
Electrical connection Screw terminals
Cable inlet using the following screwed joints:
• Pg 13.5 (adapter)
• M20 x 1.5
• ½-14 NPT or Han 7D/Han 8U plug connector
• M12 connector

Construction for gauge pressure, with flush mounted diaphragm

Weight approx. 1.5 … 13.5 kg (3.3 … 30 lb)
Material

SITRANS P, DS III series with HART communication

168 Operating Instructions, 12/2007, A5E00047092-06

310674
 Technical data
11.6 Construction

Construction for gauge pressure, with flush mounted diaphragm

• Wetted parts materials
Process connection Stainless steel, mat. no. 1.4404/316L
Seal diaphragm Stainless steel, mat. no. 1.4404/316L
• Non-wetted parts materials
Electronics housing • Non-copper aluminum die casting GD-AlSi 12 or stainless steel precision
casting, mat. no. 1.4408
• Lacquer on polyester base
• Type plate made of stainless steel
Mounting bracket Steel, zinc plated and yellow chrome plated or stainless steel
Measuring cell filling • Silicone oil
• Neobee M20
• Inert liquid
Process connection • Flanges as per EN and ASME
• F&B and pharma flange
• Bioconnect/Biocontrol
• PMC style
Electrical connection Cable inlet using the following screwed joints:
• Pg 13.5 (adapter)
• M20x1.5
• ½-14 NPT
• Han 7D/Han 8U plug connector
• M12 connector

Construction for absolute pressure (from the gauge pressure series), differential pressure and flow rate
Weight approx. 4.5 kg (9.9 lb)
Material
• Wetted parts materials
Seal diaphragm Stainless steel, mat. no. 1.4404/316L, Hastelloy C276, mat. no. 2.4819, Monel,
mat. no. 2.4360, tantalum or gold
Pressure caps and locking Stainless steel, mat. no. 1.4408 to PN 160, mat. no. 1.4571/316Ti for PN 420,
screw Hastelloy C4, 2.4610 or Monel, mat. no. 2.4360
O-ring FPM (Viton) or optionally: PTFE, FEP, FEPM and NBR
• Non-wetted parts materials
Electronics housing • Non-copper aluminum die casting GD-AlSi 12 or stainless steel precision
casting, mat. no. 1.4408
• Lacquer on polyester base
• Type plate made of stainless steel
Pressure cap screws Steel, zinc plated and yellow chrome plated or stainless steel
Mounting bracket Steel, zinc plated and yellow chrome plated or stainless steel
Measuring cell filling • Silicone oil
• Neobee M20
• Inert liquid
(max. 160 bar g (2320 psi g) for oxygen measurement)

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 169

310674
Technical data
11.6 Construction

Construction for absolute pressure (from the gauge pressure series), differential pressure and flow rate
Process connection Female thread 1/4-18 NPT and flat connection with fastening screw thread M10 as
per DIN 19213 (M12 for PN 420 (MWP 6092 psi)) or 7/16-20 UNF as per EN 61518
Electrical connection Screw terminals
Cable inlet using the following screwed joints:
• Pg 13.5 (adapter)
• M20 x 1.5
• ½-14 NPT or Han 7D/Han 8U plug connector
• M12 connector

Construction for level

Weight
• as per EN (pressure transmitter approx 11 … 13 kg (24.2 … 28.7 lb)
with mounting flange, without
tube)
• as per ASME (pressure approx 11 … 18 kg (24.2 … 39.7 lb)
transmitter with mounting flange,
without tube)
Material
• Wetted parts materials
Plus side
• Seal diaphragm on the Stainless steel, mat. no. 1.4404/316L, Monel 400, mat. no. 2.4360, Hastelloy B2,
mounting flange mat. no. 2.4617, Hastelloy C276, mat. no. 2.4819, Hastelloy C4, mat. no. 2.4610,
tantalum, PTFE, ECTFE
• Sealing surface smooth as per EN 1092-1, form B1 or ASME B16.5 RF 125 … 250 AA for stainless
steel 316L, EN 2092-1 form B2 or ASME B16.5 RFSF for the remaining materials
Sealing material in the pressure
caps
• for standard applications Viton
• for underpressure Copper
applications on the mounting
flange
Minus side
• Seal diaphragm Stainless steel, mat. no. 1.4404/316L
• Pressure caps and locking Stainless steel, mat. no. 1.4408
screws
• O-ring FPM (Viton)
• Non-wetted parts materials
Electronics housing • Non-copper aluminum die casting GD-AlSi 12 or stainless steel precision
casting, mat. no. 1.4408
• Lacquer on polyester base
• Type plate made of stainless steel
Pressure cap screws Steel, zinc plated and yellow chrome plated or stainless steel
Measuring cell filling Silicone oil
• Mounting flange fill fluid Silicon oil or a different design
Process connection
• Plus side Flange as per EN and ASME

SITRANS P, DS III series with HART communication

170 Operating Instructions, 12/2007, A5E00047092-06

310674
 Technical data
11.7 Display, keyboard and auxiliary power

Construction for level

• Minus side Female thread 1/4-18 NPT and flat connection with fastening screw thread M10 as
per DIN 19213 (M12 for PN 420 (MWP 6092 psi)) or 7/16-20 UNF as per EN 61518
Electrical connection Screw terminals
Cable inlet using the following screwed joints:
• Pg 13.5 (adapter)
• M20 x 1.5
• ½-14 NPT or Han 7D/Han 8U plug connector
• M12 connector

11.7 Display, keyboard and auxiliary power

Display and user interface

Keys 3 for on-site programming directly at the device
Digital display • Installed
• Cover with inspection window (optional)

Auxiliary power UH
HART PROFIBUS PA or Foundation Fieldbus
Terminal voltage at transmitter • DC 10.5 V … 45 V –
• In the case of intrinsically safe
operation 10.5 V … 30 V DC
Ripple USS ≤ 0.2 V (47 … 125 Hz) –
Noise Ueff ≤ 1.2 V (0.5 … 10 Hz) –
Auxiliary power – Bus-powered
Separate supply voltage – Not necessary
Bus voltage
• Not – 9 … 32 V
• For intrinsically safe operation – 9 … 24 V
Current consumption
• Max. basic current – 12.5 mA
• Starting current ≤ basic current – Yes
• Max. current in event of fault – 15.5 mA
Error shut-down electronics (FDE) – Yes
present

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 171

310674
Technical data
11.8 Certificates and approvals

11.8 Certificates and approvals

Certificates and approvals

HART PROFIBUS PA or Foundation Fieldbus
Classification according to Pressure • for gases of Fluid Group 1 and liquids of Fluid Group 1; meets requirements of
Equipment Directive (PED 97/23/EC) Article 3 Para. 3 (good engineering practice)
• only for flow rate:
for gases of Fluid Group 1 and liquids of Fluid Group 1; fulfills the basic safety
requirements as per article 3, Para 1 (appendix 1); classified as category III,
module H conformity evaluation by TÜV Nord
Water, waste water In preparation
Explosion protection
• Intrinsic safety "i" PTB 99 ATEX 2122
Identifier II 1/2 G EEx ia/ib IIB/IIC T6
Permissible ambient temperature -40 … +85°C (-40 … +185°F) temperature class T4
-40 … +70°C (-40 … +158°F) temperature class T5
-40 … +60°C (-40 … +140°F) temperature class T6
Connection To a certified intrinsically safe circuit FISCO supply unit
with the max. values: Ui = 17.5 V, Ii = 380 mA, Pi = 5.32 W
Ui = 30 V, Ii = 100 mA, Linear barrier
Pi = 750 mW, Ri = 300 Ω Ui = 24 V, Ii = 250 mA, Pi = 1.2 W
Effective inner capacitance: Ci = 6 nF Ci = 1.1 nF
Effective inner inductance: Li = 0.4 mH Li = 7 µH
• Flameproof enclosure PTB 99 ATEX 1160
encapsulation "d"
Identifier II 1/2 G EEx d IIC T4/T6
Permissible ambient temperature -40 … +85°C (-40 … +185°F) temperature class T4
-40 … +60°C (-40 … +140°F) temperature class T6
Connection To a circuit with the operating values: To a circuit with the operating values:
UH = DC 10.5 … 45 V UH = DC 9 … 32 V
• Dust explosion protection for Zone PTB 01 ATEX 2055
20
Identifier II 1 D IP65 T 120°C, II 1/2 D IP65 T 120°C
Permissible ambient temperature -40 ... +85 °C (-40 ... +185 °F)
max. surface temperature 120°C (248°F)
Connection To a certified intrinsically safe circuit FISCO supply unit
with the max. values: Ui = 17.5 V, Ii = 380 mA, Pi = 5.32 W
Ui = 30 V, Ii = 100 mA,
Pi = 750 mW, Ri = 300 Ω
Effective inner capacitance: Ci = 6 nF Ci = 1.1 nF
Effective inner inductance: Li = 0.4 mH Li = 7 µH
• Dust explosion protection for Zone PTB 01 ATEX 2055
21/22
Identifier II 2 D IP65 T 120°C
Connection To a circuit with the operating values: To a circuit with the operating values:
UH = DC 10.5 … 45 V; Pmax = 1.2 W UH = DC 9 … 32 V; Pmax = 1.2 W

SITRANS P, DS III series with HART communication

172 Operating Instructions, 12/2007, A5E00047092-06

310674
 Technical data
11.9 HART communication

Certificates and approvals

HART PROFIBUS PA or Foundation Fieldbus
• Type of protection "n" (Zone 2) TÜV 01 ATEX 1696 X
Identifier II 3 G EEx nA L IIC T4/T5/T6
only for gauge pressure, with flush mounted diaphragm:
II 3 G EEx nL IIC T4/T5/T6
Connection "nA" Un = 45 V n = 32 V
Connection "nL" Un = 45 V FISCO supply unit
Ui = 32 V, Ii = 515 mA, Pi = 5.25 W
Effective inner capacitance: Ci = 6 nF Ci = 1.1 nF
Effective inner inductance: Li = 0.4 mH Li = 7 µH
• Explosion protection in accordance Certificate of Compliance 3008490
with FM
Designation (XP/DIP) or IS; NI; S CL I, DIV 1, GP ABCD T4 ... T6; CL II, DIV 1, GP EFG; CL III; CL I, ZN 0/1 AEx ia
IIC T4 ... T6; CL I, DIV 2, GP ABCD T4 ... T6; CL II, DIV 2, GP FG; CL III
Permissible ambient temperature Ta = T4: -40 ... +85°C (-40 ... +185°F)
Ta = T5: -40 ... +70°C (-40 ... +158°F)
Ta = T6: -40 ... +60°C (-40 ... +140°F)
Entity parameters As per "control drawing" As per "control drawing"
A5E00072770A: A5E00072770A:
Ui = 30 V, Ii = 100 mA, Umax = 17.5 V, Imax = 380 mA,
Pi = 750 mW, Ri = 300 Ω, Pmax = 5.32 W,
Ci = 6 nF, Li = 0.4 mH Cmax = 6 nF, Lmax = 0.4 mH
• Explosion protection as per CSA Certificate of Compliance 1153651
Designation (XP/DIP) or (IS) CL I, DIV 1, GP ABCD T4 ... T6; CL II, DIV 1, GP EFG; CL III; ia IIC T4 ... T6:
CL I, DIV 2, GP ABCD T4 ... T6; CL II, DIV 2, GP FG; CL III
Permissible ambient temperature Ta = T4: -40 ... +85°C (-40 ... +185°F)
Ta = T5: -40 ... +70°C (-40 ... +158°F)
Ta = T6: -40 ... +60°C (-40 ... +140°F)
Entity parameters As per "control drawing" A5E00072770A:
Ui = 30 V, Ii = 100 mA, Pi = 750 mW, Ri = 300 Ω,
Li = 0.4 mH, Ci = 6 nF

11.9 HART communication

HART communication
Load for a
• HART communicator connection 230 … 1100 Ω
• HART modem 230 … 500 Ω
Cable 2-wire, shielded: ≤ 3.0 km (1.86 miles), multi-
wired, shielded: ≤ 1.5 km (0.93 miles)
Protocol HART Version 5.x

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 173

310674
Technical data
11.9 HART communication

HART communication
PC/laptop requirements IBM-compatible, user memory > 32 MB,
hard disk > 70 MB, depending on the type of
modem: RS 232 interface or USB connection,
VGA graphic
Software for computer SIMATIC PDM

SITRANS P, DS III series with HART communication

174 Operating Instructions, 12/2007, A5E00047092-06

310674
Dimension drawings 12
12.1 SITRANS P, DS III series for gauge pressure and absolute pressure
from the gauge pressure series
   DSSUR[ 
 
   DSSUR[  
    
  





š
š

 






  


















PLQ
PLQ  



Figure 12-1 Pressure transmitter SITRANS P, DS III HART series for absolute pressure, from gauge
pressure series, dimensions in mm (inch)

① Electronic side, digital display (greater design length for cover with inspection window)
② Process connection:
• 1/2-14 NPT,
• Connection pin G1/2A or
• Oval flange
③ Connection side
④ Electrical connection:
• Screwed point Pg 13,5 (adapter)2)3),
• Screwed point M20 x 1,53),
• Screwed point 1/2-14 NPT
• Han 7D/Han 8U2)3) plug connector
• M12 connector
⑤ Protective cap of the operating buttons
⑥ Blanking plug

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 175

310674
Dimension drawings
12.2 SITRANS P, DS III series for differential pressure, flow rate and absolute pressure from the differential
pressure series

⑦ Screw cover - lock bracket (only for "explosion-proof" type of protection, not shown in the
drawing)
⑧ Mounting bracket (optional)
1) Take additional 20 mm (0.79 inch) thread length into account
2) Not with "Explosion-proof" type of protection
3) Not for "FM + CSA [is + XP]" type of protection
4) For Pg 13,5 with adapter approx 45 mm (1.77 inch)
5) Minimum distance when rotating

12.2 SITRANS P, DS III series for differential pressure, flow rate and
absolute pressure from the differential pressure series
   
  DSSUR[  
  






š
š








DSSUR[ 






  

 


URWDWLRQRI
6SDFHIRU

KRXVLQJ







  
DSSUR[  


 
 
 
 

Figure 12-2 Pressure transmitter SITRANS P, DS III HART series for differential pressure and flow rate, dimensions in mm
(inch)

① Electronic side, digital display (greater design length for cover with inspection window)
② Connection side
③ Electrical connection:
• Screwed point Pg 13,5 (adapter)2)3),
• Screwed point M20 x 1,53),
• Screwed point 1/2-14 NPT
• Han 7D/Han 8U2)3) plug connector
• M12 connector

SITRANS P, DS III series with HART communication

176 Operating Instructions, 12/2007, A5E00047092-06

310674
 Dimension drawings
12.2 SITRANS P, DS III series for differential pressure, flow rate and absolute pressure from the differential pressure serie

④ Protective cap of the operating buttons

⑤ Blanking plug
⑥ Screw cover - lock bracket (only for "explosion-proof" type of protection, not shown in the
drawing)
⑦ Mounting bracket (optional)
⑧ Electrical connection:
• Screwed point Pg 13,5 (adapter)2)3),
• Screwed point M20 x 1,53),
• Screwed point 1/2-14 NPT or
• Han 7D/Han 8U2)3) plug connector
⑨ Lateral ventilation for gas measurement (addition H02)
⑩ Sealing plug, with valve (optional)
⑪ Lateral ventilation for liquid measurement
⑫ Process connection: 1/4-18 NPT (EN 61518)
1) Take additional 20 mm (0.79 inch) thread length into account
2) Not with "Explosion-proof" type of protection
3) Not for "FM + CSA [is + XP]" type of protection
4) 92 mm (3.62 inch) minimum distance for rotating the pointer
5) For Pg 13,5 with adapter approx 45 mm (1.77 inch)


  DSSUR[  
  DSSUR[  
  






š
š

 





DSSUR[ 



 
 
6SDFHIRUURWDWLRQ



DSSUR[ 
RIKRXVLQJ

 



 DSSUR[ 


Figure 12-3 Pressure transmitter SITRANS P, DS III HART series for differential pressure and flow
rate with caps for vertical differential pressure lines, dimensions in mm (inch)

① Electronic side, digital display (greater design length for cover with inspection window)
② Connection side
③ Electrical connection:
• Screwed point Pg 13,5 (adapter)2)3),
• Screwed point M20 x 1,53),
• Screwed point 1/2-14 NPT or
• Han 7D/Han 8U2)3) plug connector
④ Protective cap of the operating buttons
⑤ Blanking plug

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 177

310674
Dimension drawings
12.2 SITRANS P, DS III series for differential pressure, flow rate and absolute pressure from the differential
pressure series

⑥ Screw cover - lock bracket (only for "explosion-proof" type of protection, not shown in the
drawing)
⑦ Sealing plug, with valve (optional)
⑧ Process connection: 1/4-18 NPT (EN 61518)
1) Take additional 20 mm (0.79 inch) thread length into account
2) Not with "Explosion-proof" type of protection
3) Not for "FM + CSA [is + XP]" type of protection
4) 92 mm (3.62 inch) minimum distance for rotating the pointer
5) 74 mm (2.9 inch) for PN ≥ 420 (MWP ≥ 6092 psi)
6) 91 mm (3.6 inch) for PN ≥ 420 (MWP ≥ 6092 psi)
7) 219 mm (8.62 inch) for PN ≥ 420 (MWP ≥ 6092 psi)
8) For Pg 13,5 with adapter approx 45 mm (1.77 inch)

SITRANS P, DS III series with HART communication

178 Operating Instructions, 12/2007, A5E00047092-06

310674
 Dimension drawings
12.3 SITRANS P, DS III series for level

12.3 SITRANS P, DS III series for level


DSSUR[ 
    
  
 
   









/ 


 


G

'
G
N

 
   
6SDFHIRUURWDWLRQ
RIKRXVLQJ
Q[G 
E
DSSUR[ 
I

  

 

Figure 12-4 Pressure transmitter SITRANS P, DS III HART series for level, including mounting flange, dimensions in mm
(inch)

① Electrical connection:
• Screwed point Pg 13,5 (adapter)2)3),
• Screwed point M20 x 1,53),
• Screwed point 1/2-14 NPT
• Han 7D/Han 8U2)3) plug connector
• M12 connector
② Protective cap of the operating buttons
③ Blanking plug
④ Electronic side, digital display (greater design length for cover with inspection window)
⑤ Protective cap of the operating buttons
⑥ Connection side
⑦ Sealing plug with valve (optional)
⑧ Screw cover - lock bracket (only for "explosion-proof" type of protection, not shown in the
drawing)
⑨ Process connection: Minus side 1/4-18 NPT (EN 61518)
1) Take additional 20 mm (0.79 inch) thread length into account
2) Not with "Explosion-proof" type of protection

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 179

310674
Dimension drawings
12.4 SITRANS P, DS III series (flush mounted)

3) Not for "FM + CSA [is + XP]" type of protection

4) 92 mm (3.62 inch) minimum distance for rotating the pointer
5) For Pg 13,5 with adapter approx 45 mm (1.77 inch)

12.4 SITRANS P, DS III series (flush mounted)

   FD 
     FD 
  



 








+ FD 
+ FD


+  FD
+  FD

>@ 
>@ 

Figure 12-5 SITRANS P DS III (flush mounted)

① Electronics side, "digital display" option ④ Protective caps for buttons

② Connection side, "analog display" option ⑤ Blanking plug
③ Cable gland ⑥ Screw cover - lock bracket, only for flameproof
encapsulation, not shown in the dimension drawings
⑦ Process connection
1) Take additional 20 mm (approx.) thread length into account
4) Minimum distance for turning without display and [ ] with display
The screen consists of a SITRANS P DS III with an example flange. On this screen, the
height is divided into H1 and H2.

H1 Height of the device up to a defined cut

H2 Height of the flange up to this defined cut
In the flange dimensions, only the height H2 is specified.

SITRANS P, DS III series with HART communication

180 Operating Instructions, 12/2007, A5E00047092-06

310674
 Dimension drawings
12.4 SITRANS P, DS III series (flush mounted)

12.4.1 Note 3A and EHDG

Note
The SITRANS P, DS III series is approved by "EHEDG". The SITRANS P300 is approved by
"EHEDG" and "3A" for example.
The same flanges and flush mounted connections are used for both the pressure
transmitters. The connections for both the abovementioned approvals are thus specified.
Since the SITRANS P, DS III series transmitter is not approved by "3A", the connections
marked with "3A" are not applicable for the SITRANS P, DS III series.

12.4.2 Connections as per EN and ASME

Flange as per EN

EN 1092-1
DN PN ⊘D H2
25 40 115 mm (4.5'') Approx. 52 mm (2'')
+

25 100 140 mm (5.5'')

' 40 40 150 mm (5.9'')
40 100 170 mm (6.7'')
50 16 165 mm (6.5'')
50 40 165 mm (6.5'')
80 16 200 mm (7.9'')
80 40 200 mm (7.9'')

Threaded connections

G2" as per DIN 3852

DN PN ⊘D H2
2'' 63 78 mm (3.1'') Approx. 52 mm (2'')
+

'

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 181

310674
Dimension drawings
12.4 SITRANS P, DS III series (flush mounted)

Flanges as per ASME

ASME B 16.5
DN CLASS ⊘D H2
1'' 150 110 mm (4.3'') Approx. 52 mm (2'')
+

1'' 300 125 mm (4.9'')

'
1 1/2'' 150 130 mm (5.1'')
1 1/2'' 300 155 mm (6.1'')
2'' 150 150 mm (5.9'')
2'' 300 165 mm (6.5'')
3'' 150 190 mm (7.5'')
3'' 300 210 mm (8.1'')
4'' 150 230 mm (9.1'')
4'' 300 255 mm (10.0'')

12.4.3 F&B and pharma flange

Connections as per DIN

DIN 11851
DN PN ⊘D H2
25 40 63 mm (2.5'') Approx. 52 mm (2'')
+

32 40 70 mm (2.8'')
40 40 78 mm (3.1'')

' 50 25 92 mm (3.6'')
80 25 127 mm (5'')
Approvals 3A1)
1) If the transmitter is approved by 3A, use only 3A-approved sealing rings.

DIN 11864-1
DN PN ⊘D H2
25 40 52 mm (2'') Approx. 52 mm (2'')
40 40 65 mm (2.6'')
+

50 40 78 mm (3.1'')
100 40 130 mm (5.1'')

'
Approvals 3A, EHEDG

SITRANS P, DS III series with HART communication

182 Operating Instructions, 12/2007, A5E00047092-06

310674
 Dimension drawings
12.4 SITRANS P, DS III series (flush mounted)

DIN 11864-2
DN PN ⊘D H2
25 40 70 mm (2.8'') Approx. 52 mm (2'')
+

40 40 82 mm (3.2'')
50 40 94 mm (3.7'')
' 100 40 159 mm (6.3'')
Approvals 3A, EHEDG

DIN 11864-3
DN PN ⊘D H2
25 40 50.5 mm (2'') Approx. 52 mm (2'')
40 40 64 mm (2.5'')
+

50 40 77.5 mm (3.1'')
100 40 130 mm (5.1'')

'
Approvals 3A, EHEDG

Tri-Clamp as per DIN 32676

DN PN ⊘D H2
20 16 34 mm (1.3'') Approx. 52 mm (2'')
25 16 50.5 mm (2'')
+

32 16 50.5 mm (2'')
40 16 50.5 mm (2'')
'
50 16 64 mm (2.5'')
65 10 91 mm (3.6'')
80 10 106 mm (4.2'')
100 40 119 mm (4.7'')
Approvals 3A

Other connections

Varivent® connector
DN PN ⊘D H2
25-32 40 66 mm (2.6'') Approx. 52 mm (2'')
+

40-125 40 84 mm (3.3'')

'
Approvals 3A, EHEDG

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 183

310674
Dimension drawings
12.4 SITRANS P, DS III series (flush mounted)

BioconnectTM connector

BioconnectTM screwed joint

DN PN ⊘D H2
25 16 55 mm (2.2'') Approx. 52 mm (2'')
50 16 82 mm (3.2'')
+

100 16 145 mm (5.7'')

'
Approvals 3A, EHEDG

BioconnectTM flange connector

DN PN ⊘D H2
25 16 85 mm (3.3'') Approx. 52 mm (2'')
+

50 16 110 mm (4.3'')
100 16 175 mm (6.9'')
'
Approvals 3A, EHEDG

BioconnectTM clamp connector

DN PN ⊘D H2
25 16 50.4 mm (1.9'') Approx. 52 mm (2'')
40 16 64 mm (2.5'')
+

50 16 77.4 mm (3'')
65 10 90.9 mm (3.6'')
80 10 106 mm (4.2'')
'
100 10 119 mm (4.7'')
Approvals 3A, EHEDG

Other connections

BiocontrolTM connector
DN PN ⊘D H2
50 16 90 mm (3.5'') Approx. 52 mm (2'')
+

65 16 120 mm (4.7'')
80 16 140 mm (5.5'')
'
Approvals 3A, EHEDG

SITRANS P, DS III series with HART communication

184 Operating Instructions, 12/2007, A5E00047092-06

310674
 Dimension drawings
12.4 SITRANS P, DS III series (flush mounted)

Connect STM flanged joint

DN PN ⊘D H2
25 16 97 mm (3.8'') Approx. 52 mm (2'')
+

32 16 105 mm (4.1'')
' 40 16 115 mm (4.5'')
50 16 125 mm (4.9'')
65 10 145 mm (5.7'')
80 10 155 mm (6.1'')
100 10 180 mm (7.1'')
Approvals 3A, EHEDG

12.4.4 PMC Style

Connections for the paper industry

PMC Style Standard

DN PN ⊘D H2
– – 40.4 mm (1.6'') Approx. 52 mm (2'')
M44x1.25 cap nut
+

'

PMC-Style Minibolt
DN PN ⊘D H2
– – 26.3 mm (1'') Approx. 52 mm (2'')
+

'

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 185

310674
Dimension drawings
12.4 SITRANS P, DS III series (flush mounted)

12.4.5 Special connections

Tank connection

TG52/50 and TG52/150

DN PN ⊘D H2
TG52/50
25 40 63 mm (2.5'') Approx. 63 mm (2.5'')
+

TG52/150
25 40 63 mm (2.5'') Approx. 170 mm (6.7'')
'

SITRANS P, DS III series with HART communication

186 Operating Instructions, 12/2007, A5E00047092-06

310674
Spare parts/accessories 13
13.1 Order data
In order to ensure that the ordering data you are using is not outdated, the latest ordering
data is always available on the Internet:

See also
Catalog process instrumentation (http://www.siemens.com/processinstrumentation/catalogs)

Selection and order data Order no.

CD "sitrans p - pressure transmitters" with documentation in A5E00090345
German/English/French/Spanish/Italian, etc.
HART modem
• With serial interface RS232 7MF4997-1DA1) D)
• With USB interface 7MF4997-1DB1) D)
Weld-in support for PMC connection
For DS III and P300 series
• PMC Style Standard: Thread 1½" 7MF4997-2HA
• PMC-Style Minibolt: flush mounted 1" 7MF4997-2HB
Gaskets for PMC connection, (1 set = 5 pieces)
• PTFE gasket for PMC Style Standard: Thread 1½" 7MF4997-2HC
• Viton gasket for PMC Style Minibolt: flush mounted 1" 7MF4997-2HD
Weld-in adapter for PMC connection
For connection of weld-in support delay during welding for:
• PMC Style Standard: Thread 1½" 7MF4997-2HE
• PMC-Style Minibolt: flush mounted 1" 7MF4997-2HF

Selection and order data Order no.

Mounting bracket and fastening parts
For DS III, DS III PA and DS III FF series
For gauge pressure transmitter (7MF403.-.....-..C.)
For transmitter for absolute pressure (7MF423.-.....-..C.)
• Made of steel 7MF4997-1AB
• Made of stainless steel 7MF4997-1AH
Mounting bracket and fastening parts

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 187

310674
Spare parts/accessories
13.1 Order data

Selection and order data Order no.

For DS III, DS III PA and DS III FF series
For gauge pressure transmitter (7MF403.-.....-..A., -..B. and -..D.)
For transmitter for absolute pressure (7MF423.-.....-..A., -..B. and -
..D.)
• Made of steel 7MF4997-1AC
• Made of stainless steel 7MF4997-1AJ
Mounting bracket and fastening parts
For DS III, DS III PA and DS III FF series
Differential pressure transmitter with flange thread
• Made of steel
For thread M10 (7MF433.-... and 7MF443.-...) 7MF4997-1AD
For thread M12 (7MF453.-...) 7MF4997-1AE
• Made of stainless steel
For thread M10 (7MF433.-... and 7MF443.-...) 7MF4997-1AK
For thread M12 (7MF453.-...) 7MF4997-1AL
Mounting bracket and fastening parts
For DS III, DS III PA and DS III FF series
Differential and absolute transmitter with
flange thread 7/16-20 UNF
(7MF433.-..., 7MF443.-... and 7MF453.-...)
• Made of steel 7MF4997-1AF
• Made of stainless steel 7MF4997-1AM
Cover
For DS III, DS III PA and DS III FF series
• Made of aluminum die casting, including gasket
Without inspection window 7MF4997-1BB
With inspection window 7MF4997-1BE
• Made of stainless steel, including gasket
Without inspection window 7MF4997-1BC
With inspection window 7MF4997-1BF
Analog display
• Scale 0 ... 100% 7MF4997-1BN
• Customer-specific scale division as per the plain text 7MF4997-1BP-Z
specifications Y20: ................
Digital display
For DS III, DS III PA and DS III FF series
Including the fastening material 7MF4997-1BR
Measuring point label
• not labelled (five pieces) 7MF4997-1CA
• labelled (one piece) 7MF4997-1CB-Z
Specifications as per Y01 or Y02, Y15 and Y16 Y..: ................
(refer to SITRANS P transmitter)

SITRANS P, DS III series with HART communication

188 Operating Instructions, 12/2007, A5E00047092-06

310674
 Spare parts/accessories
13.1 Order data

Selection and order data Order no.

Fastening screws, 50 pieces for: 7MF4997-1CD
• Measuring point label
• Earthing and connecting terminals
• Digital display
Locking screws, (1 set = 2 pieces) for pressure cap
• Made of stainless steel 7MF4997-1CG
• Made of Hastelloy 7MF4997-1CH
Vent valves, complete (1 set = 2 pieces)
• Made of stainless steel 7MF4997-1CP
• Made of Hastelloy 7MF4997-1CQ
Electronic
• For DS III series 7MF4997-1DK
• For DS III PA series 7MF4997-1DL
• For DS III FF series 7MF4997-1DM
Network card
• For DS III series 7MF4997-1DN
• For DS III PA and DS III FF series 7MF4997-1DP
Sealing rings for pressure caps off
• FPM (Viton) 7MF4997-2DA
• PTFE (Teflon) 7MF4997-2DB
• FEP (with silicon core, suitable for food) 7MF4997-2DC
• FFPM (Kalrez, Compound 4079) 7MF4997-2DD
• NBR (Buna N) 7MF4997-2DE

1) Available from stock

D) Subject to export regulations AL: N, ECCN, EAR99H

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 189

310674
Spare parts/accessories
13.2 Order data for SIMATIC PDM

13.2 Order data for SIMATIC PDM

Selection and order data Order no.

SIMATIC PDM Single Point
SIMATIC PDM Single Point V6.0 6ES7 658-3HX06-0YA5
for operating and parameterizing one field device at a time,
Communication via PROFIBUS DP/PA or HART modem, incl. 1
TAG,
neither functional nor expandable via TAGOption/PowerPack
in five languages (German, English, French, Italian and Spanish),
can be run on Windows 2000 Professional or
Windows XP Professional
Floating License for one user
Delivery form:
License Key Disk, Emergency Key Disk, Certificate of License,
Terms and Conditions;
2 CDs with SIMATIC PDM V6.0 and Device Library and an
additional Microsoft ServicePacks and Tools DVD
SIMATIC PDM Basic
SIMATIC PDM Basic V6.0
for operating and parameterizing field devices and components,
communication via
PROFIBUS DP/PA, HARTModem/Interface, RS 232,
Modbus, SIREC-Bus, SIPART DR, incl. 4 TAGs
in five languages (German, English, French, Italian and Spanish),
can be run on Windows 2000 Professional or
Windows XP Professional
Delivery form:
License Key Disk, Emergency Key Disk, Certificate of License,
Terms and Conditions;
2 CDs with SIMATIC PDM V6.0 and Device Library and an
additional Microsoft ServicePacks and Tools DVD
• Floating License for one user 6ES7 658-3AX06-0YA5
• Rental License for 50 hours 6ES7 658-3AX06-0YA6
Functional options for SIMATIC PDM V6.0
Integration in STEP 7 / SIMATIC PCS 7
required only when the integration of SIMATIC PDM in HW Config
is to be used
in five languages (German, English, French, Italian and Spanish),
can be run on Windows 2000 Professional or
Windows XP Professional
Delivery form:
License Key Disk, Emergency Key Disk, Certificate of License,
Terms and Conditions
• Floating License for one user 6ES7 658-3BX06-2YB5
Routing via S7-400

SITRANS P, DS III series with HART communication

190 Operating Instructions, 12/2007, A5E00047092-06

310674
 Spare parts/accessories
13.2 Order data for SIMATIC PDM

Selection and order data Order no.

in five languages (German, English, French, Italian and Spanish),
can be run on Windows 2000 Professional or
Windows XP Professional
Delivery form:
License Key Disk, Emergency Key Disk, Certificate of License,
Terms and Conditions
• Floating License for one user 6ES7 658-3CX06-2YB5
Communication via Standard HART-Multiplexer
in five languages (German, English, French, Italian and Spanish),
can be run on Windows 2000 Professional or
Windows XP Professional
Delivery form:
License Key Disk, Emergency Key Disk, Certificate of License,
Terms and Conditions
• Floating License for one user 6ES7 658-3EX06-2YB5
TAG options/ PowerPacks
SIMATIC PDM TAG-Option
for TAG expansion, in addition to SIMATIC PDM Basic V6.0
in five languages (German, English, French, Italian and Spanish),
can be run on Windows 2000 Professional or
Windows XP Professional
Floating License for one user
Delivery form:
License Key Disk, Certificate of License, Terms and Conditions
• up to 128 TAGs 6ES7 658-3XA06-2YB5
• up to 512 TAGs 6ES7 658-3XB06-2YB5
• up to 1,024 TAGs 6ES7 658-3XC06-2YB5
• up to 2,048 TAGs 6ES7 658-3XD06-2YB5
SIMATIC PDM PowerPack
for subsequent TAG expansion of all SIMATIC PDM product
configurations V6.0
in five languages (German, English, French, Italian and Spanish),
can be run on Windows 2000 Professional or
Windows XP Professional
Floating License for one user
Delivery form:
License Key Disk, Certificate of License, Terms and Conditions
• from 128 TAGs to 512 TAGs 6ES7 658-3XB06-2YD5
• from 512 TAGs to 1.024 TAGs 6ES7 658-3XC06-2YD5
• from 1,024 TAGs to 2,048 TAGs 6ES7 658-3XD06-2YD5
• from 2.048 TAGs to TAGs unlimited 6ES7 658-3XH06-2YD5

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 191

310674
Spare parts/accessories
13.2 Order data for SIMATIC PDM

Selection and order data Order no.

Pre-defined SIMATIC PDM V6.0 product configurations for special applications
SIMATIC PDM Service V6.0 6ES7 658-3JX06-0YA5
Complete pack for stand-alone users in the service, with:
• SIMATIC PDM Basic V6.0
• Option "128 TAGs"
in five languages (German, English, French, Italian and Spanish),
can be run on Windows 2000 Professional or
Windows XP Professional, Floating License for one user
Delivery form:
License Key Disk, Emergency Key Disk, Certificate of License,
Terms and Conditions;
2 CDs with SIMATIC PDM V6.0 and Device Library and an
additional Microsoft ServicePacks and Tools DVD
SIMATIC PDM S7 V6.0 6ES7 658-3KX06-0YA5
Complete pack for use in an SIMATIC S7 project planning
environment, with
• SIMATIC PDM Basic V6.0
• Option "Integration in STEP 7/PCS 7"
• Option "128 TAGs"
in five languages (German, English, French, Italian and Spanish),
can be run on Windows 2000 Professional or
Windows XP Professional, Floating License for one user
Delivery form:
License Key Disk, Emergency Key Disk, Certificate of License,
Terms and Conditions;
2 CDs with SIMATIC PDM V6.0 and Device Library and an
additional Microsoft ServicePacks and Tools DVD
SIMATIC PDM PCS 7 V6.0 6ES7 658-3LX06-0YA5
Complete pack for integration in the engineering toolset of the
SIMATIC PCS 7 engineering system
Floating License for one user, with
• SIMATIC PDM Basic
• Option "Integration in STEP 7 / PCS 7"
• Option "Routing via S7-400"
• Option "128 TAGs"
in five languages (German, English, French, Italian and Spanish),
can be run on Windows 2000 Professional or
Windows XP Professional
Delivery form:
License Key Disk, Emergency Key Disk, Certificate of License,
Terms and Conditions;
2 CDs with SIMATIC PDM V6.0 and Device Library and an
additional Microsoft ServicePacks and Tools DVD
Demo-software
SIMATIC PDM Demo V6.0 6ES7 658-3GX06-0YC8

SITRANS P, DS III series with HART communication

192 Operating Instructions, 12/2007, A5E00047092-06

310674
 Spare parts/accessories
13.2 Order data for SIMATIC PDM

Selection and order data Order no.

without online communication and memory functionality
in five languages (German, English, French, Italian and Spanish),
can be run on Windows 2000 Professional or
Windows XP Professional
Delivery form:
2 CDs with SIMATIC PDM V6.0 and Device Library and an
additional Microsoft ServicePacks and Tools DVD
SIMATIC PDM Upgrade/Update Service
SIMATIC PDM Upgrade from V5.x to V6.0 6ES7 651-5CX06-0YE5
for all product versions and combinations
in five languages (German, English, French, Italian and Spanish),
can be run on Windows 2000 Professional or
Windows XP Professional, Floating License for one user
Delivery form:
License Key Disk, Emergency Key Disk, Certificate of License,
Terms and Conditions;
2 CDs with SIMATIC PDM V6.0 and Device Library and an
additional Microsoft ServicePacks and Tools DVD
SIMATIC PDM Software Update Service 6ES7 658-3XX00-0YL8
One-year subscription with automatic extension
Condition: current software version
Plug-in line for PROFIBUS 6ES7 901-4BD00-0XA0
designed with two 9-pin Sub-D connectors; max. transmission
rate 12 Mbit/s; 3 m

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 193

310674
Spare parts/accessories
13.2 Order data for SIMATIC PDM

SITRANS P, DS III series with HART communication

194 Operating Instructions, 12/2007, A5E00047092-06

310674
Appendix A
A.1 Certifications
The certifications are enclosed as a loose collection of operating instructions or on CD..

A.2 Literature and standards

No. Standard Description

/1/ IEC 61508 Functional safety of following systems:
Section 1-7 • Safety-instrumented
• Electrical
• Electronic
• Programmable
Target group:
Manufacturers and suppliers of equipment
/2/ IEC 61511 Functional safety - Safety systems for the process industry
Section 1-3 Target group:
Planners, constructors and users

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 195

310674
Appendix
A.3 SIL Declaration of Conformity

A.3 SIL Declaration of Conformity

SITRANS P, DS III series with HART communication

196 Operating Instructions, 12/2007, A5E00047092-06

310674
 Appendix
A.3 SIL Declaration of Conformity

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 197

310674
Appendix
A.3 SIL Declaration of Conformity

SITRANS P, DS III series with HART communication

198 Operating Instructions, 12/2007, A5E00047092-06

310674
 Appendix
A.4 exida proven in use

A.4 exida proven in use

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 199

310674
Appendix
A.4 exida proven in use

SITRANS P, DS III series with HART communication

200 Operating Instructions, 12/2007, A5E00047092-06

310674
 Appendix
A.4 exida proven in use

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 201

310674
Appendix
A.4 exida proven in use

SITRANS P, DS III series with HART communication

202 Operating Instructions, 12/2007, A5E00047092-06

310674
 Appendix
A.5 Overview of HART operating structure

A.5 Overview of HART operating structure

The following overview applies to the HART communicator operating structure.
2 Online 1 (PV meas) *)
2 (PV) status
3 Module type
4 Identification 1 Operation Unit 1 Tag
2 Long Tag --> M **)
3 Descriptor
4 Message
5 Date
2 Device 1 Manufacturer
2 Model
3 Device identification
4 Distributor
5 MLFB Order Number 1 MLFB Order No --> M
6 Measurement type
7 Fabrication-No
8 Final asembly number
9 Sensor serial number
10 Revisions 1 Universal rev.
2 Field device rev.
3 Software rev.
4 Hardware rev.
3 Basic Parameters 1 Pressure unit
2 LSL (Lower Sensor Limit)
3 USL (Upper Sensor Limit)
4 Minimum Span
5 LRV (Lower Range Value)
6 URV (Upper Range Value))
7 Pressure damping
8 Pressure xfer function xfer = transfer
5 Config Inp/Outp 1 Quick-Setup & Meas. 1 PV, Current, Status 1 (PV meas) *)
2 AO (analogue output)
3 (PV) % range
4 Status see ---> 6 Diagnosis/Service
5 Measurement type
2 Meas.Val. & Status 1 Pressure Values 1 Pressure
2 Pres status
3 Untrimmed pressure
4 Untrimmed pres status
2 Temperature Values 1 Sens-Temp
2 Sens-Temp status
3 Electr-Temp
4 Electr-Temp status
3 Level, Vol, Mass Values 1 Level
(shown if valid items) 2 Level status
3 Volume
4 Volume status
5 Mass
6 Mass status
4 Vol-, Mass- & Flow 1 Vol-Flow
(shown if valid items) 2 Vol-Flow status
3 Mass-Flow
4 Mass-Flow status
5 Appl & Stat 1 Customer
(shown if valid items) 2 Customer Status
3 Quick-Setup 1 Tag
2 Ext TAG --> M
3 PV is
4 (PV) unit
5 Position correction 1 Position corr --> M
6 LRV
7 URV
8 Pressure damping
9 Pressure xfer function
2 Input 1 Config Pres/Temp 1 Pressure sensor 1 Pressure
2 Untrimmed pres
3 Pressure units 1 Pres abs/rel
2 Pressure unit
3 Untrimmed pres unit
2 Temperature sensor 1 Sens-Temp
2 Electr-Temp
3 Temp units 1 Sens-Temp unit
2 Electr-Temp unit
3 Pres units see --> 1 Pressure sensor
4 Temp units see --> 1 Temperature sensor
2 Display Process Variables 1 Prozess variables 1 (PV measurement)
2 (PV) %rnge
3 AO
4 (SV measurement)
5 (TV measurement)
6 (QV measurement)
3 Meas Switch/Mapper 1 measurement
2 PV is
3 SV is
4 TV is
5 QV is
6 (measurement) config 1 Input scaling 1 Pres abs/rel
e.g. Level 2 Pressure unit
3 Input LRV
4 Input URV
2 Level scaling 1 Level unit
e.g. Level scaling 2 Level LRV
to be continued 3 Level URV

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 203

310674
Appendix
A.5 Overview of HART operating structure

continuance continuance continuance continuance 3 Volume scaling 1 Volume unit

5 Config Inp/Outp 2 Input 3 Meas Switch/Mapper 6 (measurement) config 2 Vol LRV
e.g. Level 3 Vol URV
2 Density unit
3 Density
3 Mass unit
6 (measurement) config 1 Input scaling 1 Pres abs/rel
e.g. Flow 2 Pressure unit
3 Input LRV
4 Input URV
2 Flow scaling 1 Vol flow unit
2 Vol flow LRV
3 Vol flow URV
2 Density unit
3 Density
3 Mass flow unit
6 (measurement) config 1 Input scaling 1 Pres abs/rel
e.g. Customer 2 Pressure unit
3 Input LRV
4 Input URV
3 Customer scaling 1 Cust unit (5 Ch)
2 Cust LRV
3 Cust URV
7 Unser linearization 1 Special Curve status --> only if meas not pres
if Level, Flow or Customer 2 No curve points
this is valid - otherwise not 3 Setup special char --> M
4 Display special char --> M
4 Meas.Limits & Span 1 Module range
2 Active Device Variables 1 Pressure 1 Pressure unit
2 Pres USL
3 Pres LSL
4 Trimpoint sum
5 Pres min.span
2 Sens-Temp 1 Sens-Temp unit
2 Sens-Temp USL
3 Sens-Temp LSL
4 Sens-Temp min.span
3 Electr-Temp 1 Electr-Temp unit
2 Electr-Temp USL
3 Electr-Temp LSL
4 Electr-Temp min.span
4 Untrimmed Pres 1 Untrimmed Pres unit
2 Untrimmed Pres USL
3 Untrimmed Pres LSL
4 Untr Pres min.span
additional if measurement 5 Level 1 Level unit
is mapped to level 2 Level USL
3 Level LSL
4 Level min.span
additional if measurement 6 Volume 1 Volume unit
is mapped to level 2 Volume USL
3 Volume LSL
4 Volume min.span
additional if measurement 7 Mass 1 Mass unit
is mapped to level 2 Mass USL
3 Mass LSL
4 Mass min.span
additional if measurement 5 Vol-Flow 1 Vol-Flow unit
is mapped to flow 2 Vol-Flow USL
3 Vol-Flow LSL
4 Vol-Flow min.span
additional if measurement 6 Mass-Flow 1 Mass-Flow unit
is mapped to flow 2 Mass-Flow USL
3 Mass-Flow LSL
4 Mass-Flow min.span
additional if measurement 5 Customer 1 (PV) unit
is mapped to customer 2 Customer USL
3 Customer LSL
4 Customer min. span
3 Output 1 Analog output 1 Analog output
2 Percent range
3 Zero and Span 1 Zero/Span set 1 Apply values >1
4 Pres xfer function 2 Out Scaling PV >2
5 Startpoint square root
>1 Out Scaling PV 1 Unit
2 LRV
3 URV
4 LSL
5 USL
>2 Apply values 1 Apply values --> M
6 Current Limits 1 Lower AO Limit
2 Upper AO Limit
7 Alarms 1 AO Alarm Type
2 Alarm LRV
3 Alarm URV
2 Sensor trim points 1 Lower sensor trim point
2 Upper sensor trim point
3 HART output 1 Polling address
2 Num request preambles
3 Num response preambles
4 Local meter 1 Meter type
2 Unit tracking
to be continued 3 Local Display unit

SITRANS P, DS III series with HART communication

204 Operating Instructions, 12/2007, A5E00047092-06

310674
 Appendix
A.5 Overview of HART operating structure

continuance continuance 4 LCD Settings 1 LCD Scaling, if On: 2 LCD Unit

5 Config Inp/Outp 4 Local Meter 5 Bargraph 3 LCD LRV
4 LCD URV
6 Access Control 1 Lokal keys control mode
2 Write protect
3 Set write protect --> M
5 Mech. Construction 1 No of electronic changes
Mech = mechanical 2 Design 1 Sensor 1 Fill fluid
2 Isolation material
3 O ring material
4 Module range
2 Remote Seal 1 Number remote seal (RS)
2 RS type
3 RS isolator material
4 RS fill fluid
5 Extension length
6 Extension type
7 Capillar length
3 Process Connection 1 Process Connection
2 DrainVent / plug mat
3 DrainVent / plug pos
4 Process flange bolt
5 Flange type
6 Flange material
4 Electronic Connection 1 Electr housing material
2 Electr connection
6 Certif & Approv 1 Explos. Protection Explos = Explosion
7 Diagnosis/Service 1 Status 1 Status summary Certif = Certification
2 Extended device status Approv = Approval
3 Simulation status
4 Hardw/Firmw status 1 Status group 2
2 Status group 3
3 Status group 4
4 Status group 5
5 Diag Alarm Status 1 Status group 15
2 Status group 16
6 Diag Warn Status 1 Status group 19
2 Status group 20
2 Device 1 Selftest/Reset 1 Selftest --> M
2 Display Test --> M
3 Master reset --> M
4 Changes Config 1 Config changed counter
2 Sensor trim 1 Restore mfgr trims --> M mfgr = manufacturer
2 Sensor trim 1 Sensor trim points 1 Lower sensor trim point
2 Upper sensor trim point
2 Sensor trim 1 Pres zero trim--> M
2 Lower sensor trim --> M
3 Upper sensor trim --> M
3 Trimpoint summary
3 Trim analog output 1 D/A trim --> M
2 Scaled D/A trim --> M
4 Position correction 1 Position corr --> M
3 Simulation/Test 1 Loop test --> M Simulation AO
2 Inputs --> M Simulation Fixed / Ramp
4 Access Control 1 Local keys control mode
2 Write protect
3 Set write protect --> M
3 Diagnostic settings 1 W/A time unit W/A = warning/alarm
2 Calib interval 1 Calib status
2 W/A acknowledge --> M
3 Calib timer 1 Calib time
2 Reset timer --> M
4 Calib warning
5 Calib alarm
6 W/A activation
3 Service interval 1 Service status
2 W/A acknowledge --> M
3 Service timer 1 Service time
2 Reset timer --> M
4 Service warning
5 Service alarm
6 W/A activation
4 AO saturation 1 AO alarm type
2 Saturation alarm
3 Alarm duration
4 Alarm activation
5 Limiter setup 1 Display limiter --> M
2 Setup limiter --> M
3 Limiter status --> M
4 Limiter: Ack W/A --> M Ack = acknowledge
5 CmpCnt: Ack W/A --> M CmpCnt =
6 Reset counter. --> M Comparation Counter
4 View 1 Operating hours 1 Operating hours Electr
2 Operating hours Sensor
3 Min/Max pointer 1 Pressure pointer 1 Pres max
2 Pres min
3 Reset pointer --> M
2 Electr-Temp pointer 1 Electr-Temp max
2 Electr- Temp min
3 Reset pointer --> M
3 Sens-Temp pointer 1 Sens-Temp max
2 Sens-Temp min
3 Reset pointer --> M

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 205

310674
Appendix
A.6 Pressure equipment directive

A.6 Pressure equipment directive

The monitoring of the design, dimensioning, testing and manufacture to ensure it is in
accordance with Module H (comprehensive quality assurance) by TÜV North as the
appointed body.

General Division of media (liquid/gaseous) into the fluid groups

The pressure equipment directive 97/23/EC applies to the align- Fluids are divided according to Article 9 into the following fluid
ment of the statutory orders of the European member states for groups:
pressure equipment. Such equipment in the sense of the direc-
Group 1
tive includes vessels, pipelines and accessories with a maxi-
mum permissible pressure of more than 0.5 bar above atmos- Potentially Highly toxic
pheric. explosive R phrases:
The pressure equipment directive can be used starting Novem- R phrases: e.g.: 26, 27, 28,
ber 29, 1999, and is compulsory starting May 29, 2002. e.g.: 2, 3 (1, 4, 39 (32)
5, 6, 9, 16, 18,
19, 44)
Division according to the danger potential
Equipment is divided in line with the pressure equipment direc- Highly Toxic
tive according to the danger potential (medium/pressure/vo- flammable R phrases:
lume/nominal diameter) into the categories I to IV or Article 3 Pa- R phrases: e.g.: 23, 24, 25
ragraph 3. e.g.: 12 (17) (29, 31)
The following criteria are decisive for assessment of the danger
potential, and are also shown in Diagrams 1 to 4 and 6 to 9:

• Fluid group Group 1 or 2 Readily Fire

• Aggregate state Liquid or gaseous flammable stimulating
R phrases: R phrases:
• Type of pressurized equipment e.g.: 11, 15, 17 e.g.: 7, 8, 9
- Vessel Product of pressure and volume (10, 30) (14, 15, 19)
(PS * V [barL])
- Pipeline Nominal diameter, pressure or
product of pressure and nominal
diameter (PS * DN) Flammable if the maximum permissible temperature is above the flash
point.
Fuelled pressure equipment or equipment heated in another
manner are shown separately in Diagram 5. Group 2

Note: All fluids not belonging to Group 1.

Liquids according to Article 3 are those liquids whose steam Also applies to fluids which are e.g. dangerous to the environment, cor-
pressure is not more than 0.5 bar above standard atmospheric rosive, dangerous to health, irritant or carcinogenic (if not highly toxic).
pressure (1013 mbar) at the maximum permissible temperature.

The maximum permissible temperature for the used liquids

is the maximum process temperature which can occur, as
defined by the user. This must be within the limits defined for
the equipment.
Conformity rating
Pressure equipment of categories I to IV must comply with the
safety requirements of the directive and be assigned the CE
symbol.
They must comply with a conformity rating procedure according
to Appendix III of the directive.
Pressure equipment according to Article 3 Paragraph 3 must be
designed and manufactured in agreement with the sound engi-
neering practice SEP applying in a member country, and must
not be assigned a CE symbol (CE symbols from other directives
are not affected).
Siemens has carried out a conformity rating, assigned a CE sym-
bol, and issued a declaration of conformity for its products (pro-
viding the equipment is not within the context of Article 3
Paragraph 3).
Supervision of the design, dimensioning, testing and manufac-
ture is carried out according to module H (comprehensive qual-
ity assurance).
Notes:
• Equipment designed for media with a high danger potential
(e.g. gases of fluid group 1) may also be used for media with
a lower danger potential (e.g. gases of fluid group 2, or liquids
of fluid groups 1 and 2).
• The pressure equipment directive according to Article 1 Para-
graph 1 does not apply to equipment such as e.g. mobile off-
shore plants, ships, aircraft, water supply and waste water net-
works, nuclear plants, rockets and pipelines outside industrial
plants.

Figure A-1 Pressure equipment directive, sheet 1

SITRANS P, DS III series with HART communication

206 Operating Instructions, 12/2007, A5E00047092-06

310674
 Appendix
A.6 Pressure equipment directive

Diagrams

• Gases of fluid group 1 • Gases of fluid group 2

• Vessels according to Article 3 Number 1.1 Letter a) First dash • Vessels according to Article 3 Number 1.1 Letter a) Second
• Exception: unstable gases belonging to Categories I and II dash
must be included in Category III. • Exception: fire extinguishers and bottles for breathing appara-
tus: at least Category III.

• Liquids of fluid group 1 • Liquids of fluid group 2

• Vessels according to Article 3 Number 1.1 Letter b) First dash • Vessels according to Article 3 Number 1.1 Letter b) Second
dash
• Exception: modules for producing warm water

• Fuelled pressure equipment or equipment heated in another

manner above 110 °C and liable to overheating.
• Vessel according to Article 3 Number 1.2
• Exception: pressure cooker, test procedure at least according
to Category III.

Figure A-2 Pressure equipment directive, sheet 2

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 207

310674
Appendix
A.6 Pressure equipment directive

• Gases of fluid group 1 • Gases of fluid group 2

• Pipelines according to Article 3 Number 1.3 Letter a) First dash • Pipelines according to Article 3 Number 1.3 Letter a) Second
• Exception: unstable gases belonging to Categories I and II dash
must be included in Category III. • Exception: liquids at temperatures > 350 °C belonging to Cat-
egory II must be included in Category III.

• Liquids of fluid group 1 • Liquids of fluid group 2

• Pipelines according to Article 3 Number 1.3 Letter b) First dash • Pipelines according to Article 3 Number 1.3 Letter b) Second
dash
Figure A-3 Pressure equipment directive, sheet 3

SITRANS P, DS III series with HART communication

208 Operating Instructions, 12/2007, A5E00047092-06

310674
List of abbreviations B
List of abbreviations

Table B-1 Variables

Abbreviation In full Meaning

PV Primary variable
SV Secondary variable
TV Tertiary variable
QV Quarternary variable

Table B-2 Units

Abbreviation In full Meaning

bar a bar absolute Unit of pressure for absolute pressure
bar g bar gauge Unit of pressure for gauge pressure
lb Pfund (engl.: Pound) Unit of weight
psi a psi absolute Unit of pressure for absolute pressure
psi g psi gauge Unit of pressure for gauge pressure

Table B-3 Other abbreviations

Abbreviation In full Meaning

PED Pressure equipment directive
HART Highway Addressable Remote Standard protocol for the transmission of information between field
Transducer device and automation system
MA Start of scale value
ME Full scale value
NFPA National Fire Protection
Association
F&B Food and beverage industry
PDM Engl.: Process Device Manager

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 209

310674
List of abbreviations
B.1 Functional safety

B.1 Functional safety

Abbreviation Full term in English Meaning

FIT Failure in Time Frequency of failure
Number of faults withing 109 hours
HFT Hardware Fault Tolerance Hardware fault tolerance:
Capability of a function unit to continue executing a required
function in the presence of faults or deviations.
MooN "M out of N" voting Classification and description of the safety-instrumented system
in terms of redundancy and the selection procedures used.
A safety-instrumented system or part that consists of "N"
independent channels. The channels are connected to each
other in such a way that "M" channels are in each case
sufficient for the device to perform the safety instrumented
function.
Example:
Pressure measurement: 1oo2 architecture. A safety-
instrumented system decides that a specified pressure limit has
been exceeded if one out of two pressure sensors reaches this
limit. In a 1oo1 architecture, there is only one pressure sensor.
MTBF Mean Time Between Failures Average period between two failures
MTTR Mean Time To Restoration Average period between the occurrence of a fault in a device or
system and restoration of functionality
PFD Probability of Failure on Demand Probability of dangerous failures of a safety function on demand
PFDAVG Average Probability of Failure on Average probability of dangerous failures of a safety function on
Demand demand
SFF Safe Failure Fraction Proportion of safe failures:
Proportion of failures without the potential to bring the safety-
instrumented system into a dangerous or non-permissible
functional status.
SIL Safety Integrity Level The international standard IEC 61508 defines four discrete
Safety Integrity Levels (SIL 1 to SIL 4). Each level corresponds
to a range of probability for failure of a safety function. The
higher the Safety Integrity Level of the safety-instrumented
system, the lower the probability that it will not execute the
required safety functions.
SIS Safety Instrumented System A safety-instrumented system (SIS) executes the safety
functions that are required to achieve or maintain a safe status
in a system. It consists of a sensor, logic unit/control system
and final controlling element.
TI Test Interval Testing interval of the protective function

SITRANS P, DS III series with HART communication

210 Operating Instructions, 12/2007, A5E00047092-06

310674
Glossary

ATEX
ATEX is an abbreviation of the French term "Atmosphère explosible" (potentially explosive
atmosphere). ATEX stands for both EC directives in the area of explosion protection: ATEX
product directive 94/9/EC and ATEX operating directive 1999/92/EC.

Auxiliary power supply

Auxiliary power supply refers to an electrical supply or reference voltage which some
electrical circuits require apart from the standard supply. The auxiliary power supply can, for
example, be specially stabilized, have a particular level or polarity and/or other properties
which are important for the correct functioning of switch components.

Auxiliary voltage
→ Auxiliary power supply

Dangerous failure
Failure with the potential to bring the safety-instrumented system into a dangerous or non-
functional status.

EEPROM
EEPROM (Electrically Erasable Programmable Read-Only Memory): a non-volatile,
electronic memory module.
EEPROMs are often used where individual bytes of data (e.g. configuration data or runtime
meters) change over time and must be stored safely in the event of a mains power failure.

Fail-safe
The capability of a control to maintain the safe state of the controlled device, e.g. machine,
process, or to bring the device to a safe state even when faults/failures occur.

Failure/Fault
Failure:
A resource is no longer capable of executing a required function.
Fault:
Undesired state of a resource indicated by the incapability of executing a required function.

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 211

310674
Glossary

Fault
→ Failure/Fault

Fault tolerance
Fault tolerance N means that a device can execute the intended task even when N faults
exist. The device fails to execute the intended function in case of N+1 faults.

Final controlling element

Converter that converts electrical signals into mechanical or other non-electrical variables.

Firmware
Firmware (FW) is software, which is embedded in a chip in electronic devices – unlike
software that is stored on hard disks, CD ROMs or other media. These days, firmware is
mostly stored in a flash memory or EEPROM.
Firmware usually contains the elementary functions for controlling the device, as well as
input and output routines.

Frequency shift keying

Frequency shift keying in a simple form of modulation in which the digital values 0 and 1 are
represented by two different frequencies.

Frequency Shift Keying (FSK)

→ Frequency shift keying

HART
HART (Highway Addressable Remote Transducer) is a standardized, widely used
communications system used to structure industrial fieldbusses. The communications
system provides digital communications for multiple participants (field devices) via a
common databus. HART is based especially on the equally widely used 4/20 mA standard
for the transfer of analog sensor signals. The cabling from existing older systems can be
used directly and both systems operated in parallel.
HART specifies several protocol levels in the OSI model. It facilitates the transfer of process
and diagnostics data and control signals between field devices and high-level control
systems. Standardized parameter sets can be used for the manufacture-independent
operation of all HART devices.
Typical applications include transmitters for measuring mechanical and electrical
dimensions.

Non-volatile memory
→ EEPROM

SITRANS P, DS III series with HART communication

212 Operating Instructions, 12/2007, A5E00047092-06

310674
 Glossary

Risk
The combination of probability of a damage occurring and its magnitude.

Safety function
Defined function executed by a safety-instrumented system with the objective of achieving or
maintaining a safe system status taking into account a defined dangerous occurrence.
Example:
Limit pressure monitoring

Safety Instrumented Function

→ SIF

Safety Integrity Level

→ SIL

Safety-instrumented system
A safety-instrumented system executes the safety functions that are required to achieve or
maintain a safe status in a system. It consists of a sensor, logic unit/control system and final
controlling element.
Example:
A safety-instrumented system is made up of a pressure transmitter, a limit signal sensor and
a control valve.

Sensor
Converter that converts mechanical or other non-electrical variables into electrical signals.

SIF
A part/function of a safety-instrumented system that reduces the risk of a dangerous failure
occurring.

SIL
The international standard IEC 61508 defines four discrete Safety Integrity Levels (SIL) from
SIL 1 to SIL 4. Each level corresponds to the probability range for the failure of a safety
function. The higher the SIL of the safety-instrumented system, the higher probability that the
required safety function will work.
The achievable SIL is determined by the following safety characteristics:
● Average probability of dangerous failure of a safety function in case of demand (PFDAVG)
● Hardware fault tolerance (HFT)
● Safe failure fractions (SFF)

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 213

310674
Glossary

srli2
→ srlin2

srlin2
"srli2" or "srlin2" is a type of square root extracting characteristic curve for the output current.
This characteristic curve type is proportional to the flow rate, linear in two levels up to the
application point and has a pre-defined application point of 10%.
"srli2" or "srlin2" are synonymous and technically, there is no difference in them. The
abbreviation "srli2" is used in sections that refer to the on-site operation of the pressure
transmitter. The reason for this abbreviation is that the digital display of the pressure
transmitter is restricted to five characters. The abbreviation "srlin2" is used for HART
operation.

SITRANS P, DS III series with HART communication

214 Operating Instructions, 12/2007, A5E00047092-06

310674
Index
Current limit, 110
Current transmitter, 78, 109
A
Acknowledgement, 120
D
Ambient temperature, 164, 165, 166, 167
Influence, 159, 160, 161, 162, 163 Device variable, 61, 101
Analog output, 105 DV, 94
Analog output block, 105 Device view, 18
Analog output stage, 93 Diagnostic interrupt, 109, 119
Arrow display, 60 Diagnostic warning, 119
Assembly Differential pressure, 16, 17, 82, 118
At electrostatic risk, 12 Display of unit, 58
Downscaling, 66
DV
B Device variable, 94
Dynamic variable (DV), 93
Bar graph, 113
Basic variables, 55
Blind adjustment, 108
E
Bridge output voltage, 22, 23, 24
Electrical damping, 109
Electromagnetic Compatibility, 164, 165, 166, 167
C Compatibility, 132
Electronics, 133
Calibration
Electrostatic Sensitive Devices (ESD), 12
Current transmitter, 115
EMC, 164, 165, 166, 167
Sensor, 113
Error display, 59
Calibration interval, 120
Calibration timer, 120
Certificate, 195
F
Certification, 195
Characteristic curve Factory calibration, 116
lin, 82 Failure current, 109
srli2, 82 Failure signal, 129
srlin, 82 Fast recording of measured values, 109
sroff, 82 Fast Response Mode, 109
characteristics Fill liquid, 22, 24, 25
Safety, 134 Final controlling element, 129
Checking, 133 Firmware, 9
Commissioning, 136 Firmware version
Configuration data, 117 Safety Integrity Level, 132
Connector Flameproof enclosure, 12
M12, 52 Flange, 24, 35
Constant current operation, 78, 109 Full scale value
Control system, 129 Set, 66
Correct usage, 11 Function chart, 26

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 215

310674
Index

H Measuring mode selector, 93, 94

Measuring span, 66
Han plug, 52
Message
HART
OVER, 61
Modem, 15
UNDER, 61
HART communicator, 91
Modular structure, 148
Hazardous area, 11
More information, 10
History, 9
Mounting bracket, 32
Mounting flange, 24
MTTR, 134
I
Input scaling, 96, 98, 101
Install O
Remote seal, 38
Operating structure, 203
Installation, 31, 32
operation
Intrinsic safety, 12
Local, 65
Output scaling, 96, 101
Output scaling, 99
K
Keyboard lock, 80
P
Pair of min/max pointer, 120
L
Pairs of values, 99, 101
L (level), 97 PED, 206
LCD scaling, 106 Plug
Level, 17 Han, 52
Limit monitor, 125 Position correction, 77
lin, 82, 118 Precautions, 11
Load, 158 Pressure equipment directive
Conformity evaluation, 206
Diagrams, 207, 208
M Hazard potential, 206
Pressure simulation, 124
M12 connector, 52
Pressure unit, 113
MA
Primary variable, 61
Start of scale value, 94
Process connection, 17
Maintenance, 133
Product information on the Internet, 10
Mapper, 93, (Also see: Variable mapper)
PV
Mass, 95, 97
Primary variable, 94
ME
Full scale value, 94
Mean Time Between Failures, 131
Q
Measured value display, 65
Measured value display, 85 Qualified personnel, 13
Measured value status, 102 QV
Measuring accuracy, 132 Quarternary variable, 94
Measuring cell
Absolute pressure, 26
Differential pressure and flow rate, 23 R
Gauge pressure, 22
Ramp function, 123, 125
Level, 24
Remote seal
Measuring mode, 66, 92, 94, 98

SITRANS P, DS III series with HART communication

216 Operating Instructions, 12/2007, A5E00047092-06

310674
 Index

Description, 28 V
Install, 38
Variable mapper, 93
Maintenance, 149
Vent valve, 117, 143, 145
Response time, 121
Volume, 97
Root application point, 83, 98

W
S
Working reliability regulation, 11
Safety
worldwide
Checking, 133
Contact person, 10
Safety function, 131
Worldwide contact person, 10
Checking, 132, 133
Write protection, 80, 132
Safety Integrity Level, 132
Saturation limit, 110
Sensor, 129
Z
sensor calibration, 113
Service timer, 120 Zero point calibration, 77, 108
Settings, 132 Zone 2, 12
Shut-off valve, 139, 141, 143, 144, 145
Signal range, 61
Simulation, 120, 123
srli2, 82
srlin, 82, 118
srlin2, 118
sroff, 82, 118
Stabilizing valve, 141, 143, 145
Start of scale value
Set, 66
Stop time, 121
Structure, 17
SV
Secondary variable, 94

T
Tank connection, 186
Technical data, 132
Test certification, 11
Trim
Lower sensor calibration, 114
Upper sensor calibration, 114
Turning range, 46
TV
Tertiary variable, 94
Type of protection
Flameproof enclosure, 12
Intrinsic safety, 12
Limited energy nL (zone 2), 12
Non-sparking nA (zone 2), 12

SITRANS P, DS III series with HART communication

Operating Instructions, 12/2007, A5E00047092-06 217

310674
Index

SITRANS P, DS III series with HART communication

218 Operating Instructions, 12/2007, A5E00047092-06

310674
310674
 12/2007
Operating Instructions Edition 12/2007

Operating Instructions
SITRANS P, DS III series with HART communication
Pressure transmitter
SITRANS P, DS III series
with HART communication

sitrans
Siemens Aktiengesellschaft
@1PA5E00047092@
A5E00047092 Automation and Drives (A&D)
Sensors and Communication
Process Sensors
76181 KARLSRUHE
GERMANY
A5E00047092-06 www.siemens.com/processinstrumentation

310674

A5E00047092D-06 GN: 30060_DuoDrDif