FIELD DEVICES – FLOW

Product Specifications

PSS 1-8A8 A
Foxboro® Model 84C Flanged Body Intelligent Vortex Flowmeters with
Temperature Compensation

The Model 84C flanged vortex flowmeter is an addition to the Foxboro® family of intelligent, high
performance vortex flowmeters(1). It is available with 4 to 20 mA, HART® 7, and pulse output. It is equipped
with integral temperature compensation for flow measurement of saturated steam and user-defined
liquids. An integral LCD indicator with pushbuttons is offered for local configuration.

FEATURES
 Liquid, gas, or steam applications  Low power versions available for use in battery
 Compensation for mass flow of saturated steam or solar power applications
based on ASME steam tables  An integrated temperature sensor for measuring
 Compensation for mass flow of custom liquids process temperature

 Volumetric flow rate accuracy of ±0.5% of  ActiveTuning™ algorithms:

reading in liquids and ±1.0% in gas and steam  Real time Reynolds number (RD) low flow
 Mass flow rate accuracy of ±1.4% of reading in correction down to RD of 5000
saturated steam  Compensation for piping effects
 Process temperature accuracy of ±1°F (0.56°C)  Adaptive filtering and signal conditioning
for saturated steam  Pulse output capability in raw, frequency, or
 Flanged 3/4 to 12 in (DN15 to DN300) body pulse (total) modes
 High pressure up to Class 1500 and PN160  CE marked; complies with EMC European
 DirectSense™ technology Union and PED Directives, and NAMUR NE 21
interference immunity requirement
 Widest rangeability in class
 CRN Registered

1. For information on other flowmeters in the Model 84 family, refer to PSS 1-8A3 A (Style A Models 84F and 84W), PSS 1-8A5 A
(Style A Model 84S), PSS 1-8A6 A (Low Power Style A Models 84F, 84W, and 84S), and PSS 1-8A7 A (Style B Model 84F).
PSS 1-8A8 A
Page 2

VORTEX SOLUTION FOR TEMPERATURE DirectSense TECHNOLOGY ENSURES BEST

COMPENSATION PERFORMANCE AND RELIABILITY
The Foxboro brand 84C Vortex flowmeter provides DirectSense technology measures pressure pulses
an integrated process fluid temperature from vortex shedding directly, without losses due to
measurement. With built-in ASME steam tables(2), mechanical linkages. Model 84C Vortex flowmeters
the Model 84C is the best solution for the mass flow are offered with all the advantages of DirectSense
metering of saturated steam. In addition, the 84C technology that the Model 84 Vortex flowmeter
provides algorithms for temperature compensated family delivers.
mass flow of any user-defined liquid. With the field-
proven advantages of the rest of the Model 84 family INTEGRATED TEMPERATURE MEASUREMENT
of vortex flowmeters, including DirectSense
The Model 84C Vortex flowmeter is equipped with an
technology and ActiveTuning, the Foxboro 84C
integrated Class A, 1000 ohm, platinum RTD
flowmeter provides the definitive solution for
temperature sensor which allows temperature
temperature compensation of saturated steam, and
compensation for density of saturated steam and
for liquids, it provides a low cost alternative to the
user defined liquids. The temperature measurement
more expensive mass flow solutions on the market.
is also provided as an output. The temperature
sensor provides:
COMPLIANCE WITH EUROPEAN UNION
DIRECTIVES  Mass flow rate accuracy of ±1.4% for saturated
steam
 Complies with Electromagnetic Compatibility
 Process temperature accuracy of ±1°F (0.56°C)
Requirements of EMC Directive 2004/108/EC by
conforming to the following EN and IEC
Standards: EN 61326-1, IEC 61000-4-2 through
SIMPLIFIED START-UP
61000-4-6, and IEC 61000-4-11. The flowmeter can be shipped preconfigured with
 Complies with NAMUR NE 21 Interference flow data that you provide. Otherwise, you can easily
Immunity Requirement (EMC). configure the flowmeter for your specific process.

 Complies with Pressure Equipment Directive

ActiveTuning ALGORITHMS
(PED) 97/23/EC.
 Complies with all applicable European Union Reynolds Number
Directives (CE Logo marked on product). The patented ActiveTuning algorithm improves
accuracy down to an RD of 5000.

Compensations for Piping Effects

When it is not possible to provide the recommended
pipe diameters of unobstructed straight pipe
upstream of the flowmeter, the 84C flowmeter can
be configured to compensate for most of the
common non-ideal upstream conditions, such as
elbows and reducers. Straight runs as short as five
pipe diameters can be configured to achieve full
accuracy.

2. Saturated steam based on ASME International Steam Tables for Industrial Use (Second Edition), 2009.
 PSS 1-8A8 A
Page 3

Adaptive Filtering and Signal Conditioning MEASUREMENT INTEGRATION

A patented, adaptive filtering algorithm provides real- These flowmeters provide efficient integration of
time, dynamic frequency filters that follow the vortex measurements into HART process control schemes.
shedding frequency. This results in unsurpassed They operate by using a bidirectional digital signal
low-flow measurement capability and vibration superimposed on the 4 to 20 mA current signal
immunity. This is incorporated with a digital (standard power -T version) or on the fixed 10 mA
smoothing algorithm that conditions the raw vortex supply current (low power -L version). They are also
signal to further enhance low-flow performance. offered with a pulse output. Remote communication
of digital values plus status and configuration
Tunable for Specific Operating Conditions information can be achieved via HART
communication protocol.
Configurable parameters for Low Flow Cut-in and
damping allow tuning for specific flow conditions. The following can be used to configure the
Model 84C Vortex flowmeter:
COMPACT, EFFICIENT, AND DURABLE  A HART communicator.
DESIGN
 A local digital indicator/configurator with
The flowmeter mounts between ANSI or DIN pushbuttons.
EN 1092-1 raised face flanges. See “MODEL
 A PC-based configurator.
CODE” on page 22 for end connections offered with
each line size. Other flange face surfaces can be With HART, digital multidropping is permitted. This is
used as a custom design. the connection of several transmitters to a single
The electronics housing is explosion proof and communications line. Up to 16 transmitters can be
flameproof construction and provides environmental connected on a single twisted pair of wires or over
protection to the enclosed electronics. It is offered leased telephone lines.
integrally mounted to the flowtube, or can be
mounted remotely. mA OUTPUT

The flowmeter’s simple, modular design requires In addition to the standard HART digital signal,
Vortex flowmeters produce a milliamp output signal.
minimum maintenance. Common, field replaceable
For standard power 84C Vortex flowmeters, you can
parts are used, including the sensor assembly and
map a measurement to the HART primary variable
amplifier. The amplifier can be replaced without
(PV), and this measurement will drive the 4 to 20 mA
interrupting the flow in the pipe. Since a single
analog output. For low power 84C Vortex
device is used for multiprocess-fluid applications,
flowmeters, the mA output is fixed at 10 mA.
ordering is simplified and spare part needs are
minimized.

LOW POWER OPTION

A low power option is available for use with battery
power and any form of recharging technology, such
as solar arrays or alternators.

USABLE IN HAZARDOUS AREA LOCATIONS

These flowmeters meet numerous agency
requirements for hazardous locations.
PSS 1-8A8 A
Page 4

PULSE OUTPUT LOCAL DIGITAL INDICATOR/CONFIGURATOR

Vortex flowmeters can also produce a pulse signal in The Model 84C flowmeter is offered with an optional
addition to the standard HART digital signal and 4 to multi-line local digital display, which serves as both a
20 mA analog signal. Pulse output can be local configurator and measurement indicator.
configured in one of the following modes.
The flowmeter can be easily configured in Setup
 Raw mode generates a pulse frequency mode using four pushbuttons on the front of the
according to the detected raw vortex frequency transmitter and an intuitive menu system.
after filtering.
The indicator screen, which displays real-time
 Frequency mode generates a pulse frequency flowmeter measurements, is fully configurable.
proportional to a mapped measurement. Valid Depending on your application and the flowmeter’s
measurement mappings are shown in Table 16. model code, you can customize the indicator to
 Pulse mode generates one pulse output per manually or automatically cycle among one or more
given quantity of material flowing through the flowmeter measurements. The indicator screen also
sensor. displays rollover counters for totalizer readings, and
any errors or warnings that exist.
TOTALIZERS
The 84C Vortex flowmeter provides three separate
SELF-DIAGNOSTICS
totalizers that accumulate flow measurements. To The flowmeter uses many diagnostic functions
allow you to track different types of flow including temperature sensor continuity checks.
measurements, each totalizer can be mapped, These diagnostic functions are performed at startup
configured, and operated independently. and continuously in the background.
The flowmeter also has a built-in self-test function for
REMOTE MOUNTED ELECTRONICS HOUSING verification of the health of the electronics module.
Remote mounting is offered to allow access to the
amplifier and other housing electronics when the
measurement is not in an easily accessible location.
The remote housing is supported by a bracket,
which in turn mounts to a surface or to a nominal 2-
inch or DN50 pipe. This housing can be located up
to a cable length of 50 ft (15.2 m) from the flowtube
without loss of low level signal.
 PSS 1-8A8 A
OPERATING CONDITIONS Page 5

FlowExpertPro™ SIZING TOOL

The FlowExpertPro sizing tool is an application The program calculates minimum and maximum
primarily used to size Foxboro brand flowmeters, but flow rates, rangeability, pressure loss, and Reynolds
also ensures that you have selected the proper Number using established flow equations. It also
flowmeter type for your particular application. This allows for material and flange selection, and
meter selection tool is provided to all users. You can provides ANSI or DIN flange recommendations for
run the FlowExpertPro sizing tool from a free predicted flow pressure and temperature. Visit
website or on mobile devices running the iOS www.FlowExpertPro.com to use the web-based tool,
operating system. or scan the appropriate QR Code below to access
the web tool or mobile application. Contact Global
In addition to flowmeter selection and sizing, the
Customer Support for further information and
FlowExpertPro program includes the following
technical support.
features:
Scan for access to Scan for access to
 Incorporates a large library of the physical FlowExpertPro.com mobile application
properties of typical process fluids.
 Displays results in tabular or graphic format.
 Allows you to save, print, or e-mail results.
 Provides reference to applicable flowmeter
Product Specification Sheets (PSSs) and other
related flowmeter documentation.

OP ER AT I N G CO N D ITIO N S

Factory Calibration
Influence Conditions (a) Operating Limits (b)
Process Fluid Clear Water Liquid, Gas, and Steam
Process Temperature
Std. Temp. Version/Fluorolube Fill 70 ° to 85°F (20° to 30°C) 0° and +200°F (-20 ° and +90°C)
Std. Temp. Version/Silicone Fill 70 ° to 85°F (20° to 30°C) 0° and +400°F (-20 ° and +200°C)
High Temp. Version/Unfilled (c) 70 ° to 85°F (20° to 30°C) 300 ° and 500°F (150° and 260°C)
Ambient Temperature (Housing)
with Indicator/Configurator 70 ° to 85°F (20° to 30°C) 0° and +176°F (-20 ° and +80°C) (d)
without Indicator/Configurator 70 ° to 85°F (20° to 30°C) -40° and +176°F (-40° and +80°C) (d)
Relative Humidity 50 to 90% 0 and 100%
Supply Voltage 24 ±0.5 V dc 15.5 and 42 V dc (see Figure 2)
10 and 42 V dc for Low Power version (e)
a. The factory calibration conditions assume: ANSI Schedule 160 process piping for 2-, 3-, and 4-inch line sizes using Class 1500
flanges, 6-inch (152.4 mm) and 8-inch (203.2 mm) line sizes using Class 900 and Class 1500 flanges, and DN150 and DN200 line
sizes using PN160 flanges; all other line sizes and pressure options assume ANSI Schedule 40 process piping; flanges bored to
interfacing pipe I.D.; piping and flowmeter body bores aligned to within 2% of meter bore; gaskets are 0.125 in (3.18 mm) thick and
not protruding into pipeline; a minimum of thirty pipe diameters of straight pipe upstream and five pipe diameters downstream of
flowmeter; clear water is free from air or particles.
b. Limits are based on nonflashing, noncavitating conditions. A minimum positive back pressure is required for proper operation to
avoid these effects.
c. Sensor Options A and B are rated to 500°F (260°C) maximum with Multivariable selection T.
d. The 176°F (80°C) temperature is extended to 185°F (85°C) with certain electrical approvals or certifications. Refer to Electrical
Safety Specifications table.
e. Supply current is fixed at a constant 10 mA for Electronics Version selection L and remains in operation down to a minimum
terminal voltage of 10 V dc. See “Power Supply Requirements (Low Power Versions)” on page 10.
PSS 1-8A8 A
Page 6 PERFORMANCE SPECIFICATIONS

P E R F O R M AN C E S PE CI F I C AT I O N S
Under calibrated operating conditions unless otherwise stated

Factory Calibrated Flow Ranges

Factory-Calibrated Flow Range for Water (b)

Nominal Mean K-Factor Range Reynolds

Nominal Meter Size in Pulses/ft3 (Pulses/L) (a) Range in US gpm Range in L/s Number (RD)
3/4 in (DN15) 5,580 (197) 6.9 to 34 0.43 to 2.1 30,000 to 150,000
1 in (DN25) 2,250 (79.5) 8.9 to 56 0.56 to 3.5 30,000 to 190,000
1 1/2 in (DN40) 570 (20.1) 14 to 140 0.88 to 8.7 30,000 to 300,000
2 in (DN50) 258 (9.11) 18 to 230 1.1 to 15 30,000 to 380,000
2 in (DN50) Class 1500 389 (13.74) 16 to 203 1 to 12.8 30,000 to 380,000
3 in (DN80) 78.7 (2.78) 34 to 500 2.1 to 32 38,000 to 570,000
3 in (DN80) Class 1500 103 (3.64) 32 to 475 2 to 30 38,000 to 570,000
4 in (DN100) 34.8 (1.23) 59 to 890 3.7 to 56 50,000 to 750,000
4 in (DN100) Class 1500 47.29 (1.67) 55 to 818 3.4 to 51.6 50,000 to 750,000
6 in (DN150) 10.00 (0.353) 140 to 2,000 8.5 to 130 76,000 to 1,100,000
6 in (DN150) Class 900, 13.68 (0.483) 125 to 1,812 7.9 to 114.3 76,000 to 1,100,000
Class 1500, PN160
8 in (DN200) 4.26 (0.150) 240 to 3,600 15 to 220 100,000 to 1,500,000
8 in (DN200) Class 900, 5.98 (0.211) 216 to 3,244 13.6 to 204.6 100,000 to 1,500,000
Class 1500, PN160
10 in (DN250) 2.19 (0.0773) 395 to 5,768 24.9 to 363.9 130,000 to 1,900,000
12 in (DN300) 1.32 (0.0466) 578 to 8,305 36.4 to 524.0 160,000 to 2,300,000
a. The K-factor is the relationship between input (volumetric flow rate) and the output (pulse rate). Reference K-factor is the
arithmetic mean value of K-factor over a designated flow rate range (reference conditions). The mean K-factor is derived as:
Mean K-factor = (KMAX + KMIN) / 2
where KMAX is the maximum K-factor and KMIN is the minimum K-factor over the calibrated flow range.
b. Factory calibrated Reynolds Number range applies to standard temperature sensor without isolation valve. Other sensor
selections and manifold selections may alter the calibration range. For sizing tools and specific calibration ranges, visit
www.FlowExpertPro.com.
 PSS 1-8A8 A
REFERENCE ACCURACY Page 7

R E F ER E N C E A C C U R A C Y

Volumetric Flow for Liquids Volumetric Flow for Gases and Steam
Accuracy within the calibrated range is as follows Accuracy within the calibrated range is as follows:
(also see Figure 1):  Above 20,000 RD; ±1.0%
 Above 30,000 RD; ±0.5%  Between 5,000 and 20,000 RD; ±2.0%
 Between 20,000 and 30,000 RD; ±1.0% NOTE
 Between 5,000 and 20,000 RD; ±2.0%
To achieve the fluid accuracies listed above, the
Figure 1. Flowmeter Accuracy for Liquids flowing density and viscosity must be configured.
SEE FACTORY CALIBRATION To determine accuracy for specific applications
FLOW RANGES TABLE FOR and use other sizing tools, visit
REYNOLDS NUMBER RANGE www.FlowExpertPro.com.

Mass Flow for Saturated Steam(3)

+2%
Mass flow accuracy for velocities from 33 to 250 ft/s
+1%
ACCURACY

(10 to 76 m/s) and temperatures greater than 300°F

+
_ 0.5% (149°C):
 ±1.4% of rate
-1%
-2% Process Temperature for Saturated Steam(3)

5 20
Process temperature accuracy for velocities greater
0 10 000 30 100 000 1 000 000 than 33 ft/s (10 m/s) and for temperatures greater
REYNOLDS NUMBER (RD) than 300°F (149°C):
 ±1°F (±0.56°C)

3. These specifications assume the flowmeter is insulated per MI 019-222.

PSS 1-8A8 A
Page 8 EXTERNAL INFLUENCES

E X T ER N A L I N F L U E N C E S

Supply Voltage (Within Stated Limits) EMI and RFI

 With Pulse Output: No effect on accuracy The flowmeters meet the EMI and RFI requirements
 With Analog Output: Less than 0.005% per volt of EN 61326-1.
 With Digital Output: No effect on accuracy
Vibration
Ambient Temperature (Amplifier only)
The flowmeter complies with IEC 60068-2-6 for
 With Pulse Output: ±0.01% of reading from 10 to 500 Hz up to 2 “g”.
-40° to +176°F (-40° to +80°C)(4)
 With Analog Output: For 50°F (28°C) change in Switching and Indirect Lightning Transients
ambient temperature within operative limits. The transmitter can withstand a transient surge up to
– Zero (4 mA): ±0.02% of span maximum 2000 V common mode or 1000 V normal mode
– Span (16 mA): ±0.1% of span maximum without permanent damage. Transmitter complies
with ANSI/IEEE C62.41-1980 and IEC 61000-4-5.
 With Digital Output: ±0.01% of reading from
-40° to +176°F (-40° to +80°C)(4) Complies with Electromagnetic Compatibility
requirements of European EMC Directive
Relative Humidity 2004/108/EC by conforming to EN 61326-1 and IEC
No effect if covers and conduit seals are properly 61000-4-2 through 61000-4-6.
installed.
RFI
Complies with IEC 61000-4-3.

4. The 176°F (80°C) temperature may be extended to 185°F (85°C). Refer to “ELECTRICAL SAFETY SPECIFICATIONS” on page 18.
 PSS 1-8A8 A
FUNCTIONAL SPECIFICATIONS Page 9

F U N C T I O N A L S P E C I F I C AT I O N S

Remote Digital Communication Password Protection

Remote digital communications are carried out via a This is provided in the local display/configurator
HART Communicator or PC-based configurator at a mode to assure operating security. A second level of
communication rate of 1200 baud, and a rated protection is provided for configuration security.
communication distance of 6000 ft (1800 m).
Remote digital communication can also be carried On-Line Diagnostics
out through a control system. The flowmeter uses many internal diagnostic
functions including hardware checks and internal
Local Communication/Configuration
code and database validation. The 4 to 20 mA
In addition to remote communications, a local digital output follows the NAMUR 43 standard where:
indicator/configurator with pushbuttons is also  Fail Low is ≤ 3.6 mA
available for local interrogation and configuration.  Under Range is < 3.8 mA
Communication Format  Over Range is > 20.5 mA
 Fail High is ≥ 21.0 mA
 Analog 4 to 20 mA with HART superimposed
 HART communications with fixed mA output The 4 to 20 mA output can be configured to fail high
or fail low.
Table 1. Remote Communication Parameters
Self-Test
HART Analog or Digital
Parameter Multidrop Mode The transmitter initiates self-tests to verify the health
Remote Configurator/ HART Communicator or of the transmitter electronics. This test uses an
Communicator PC-Based Configurator internally generated frequency signal.
Communication Rate 1200 baud
Temperature Sensor Diagnostics
Communication 6000 ft (1800 m)
Distance (Rated) Software running in the Vortex flowmeter provides
Measurement Update 5 times/s temperature sensor continuity checks.
Raw Pulse Vortex Shedding Frequency
Measurement Update

Write Protect Jumper

A write protect jumper provides additional security
by allowing or preventing the local or remote
configurators from writing to the electronics. This
write protection capability meets the security
requirements of ISA-584.01-1986.
NOTE
Without the jumper installed, the Vortex
flowmeter electronics module is write protected.
PSS 1-8A8 A
Page 10 FUNCTIONAL SPECIFICATIONS

Power Supply Requirements (Standard Power Power Supply Requirements (Low Power
Versions) Versions)
Supply Current Supply Current
 Digital Mode: 10 mA dc nominal  10 mA dc nominal
 Analog Mode: 22 mA dc maximum
 Pulse Output: 20 mA dc maximum Supply Voltage Limits
 10 and 42 V dc
Supply Voltage
NOTE
 15.5 to 42 V dc, depending on electrical
For proper operation, 10 V dc must be
safety approvals and certifications. Refer to
maintained at the flowmeter terminals. For HART
Figure 2.
communications, a 250 Ω load resistor must be
NOTE included in the power supply loop and a supply
When operating at ambient temperatures below voltage of 12.5 V dc must be maintained. See
-20°F (-29°C), it is important to maintain a installation MI for typical installation topologies.
minimum loop voltage of 15.75 V dc to maintain
Output Damping
remote configurator communications capability.
Figure 2. Supply Voltage vs Output Load for Damping smooths the flow rate output, and
4 to 20 mA Output optimizes the flowmeter’s response time to the
1400 control system. Damping is an exponential filter,
1200
85% recovery time to an input step that is 80% of
span, with a selectable time constant; it can be set
OUTPUT LOAD, Ω

1000
MINIMUM LOAD between 0 and 32 seconds. An eight second
WITH
800
CONFIGURATOR 30 V MAXIMUM FOR damping factor will pass 85% of the step change in
OR INTRINSICALLY
600 COMMUNICATOR SAFE UNITS. this time period. Damping applies to all outputs
SEE NOTE 2.
400
except the Raw Pulse Output where no damping is
250 applied to the direct vortex shedding frequency.
200
227.5 Ω @ 17.7 V SEE NOTE 1 BELOW
0 Response Time (Without Damping)
15 16 18 20 22 24 26 28 30 32 34 36 38 40 42
SUPPLY VOLTAGE, V dc
Analog Mode
NOTE
1. The transmitter will function with an output load less than 0.5 second or the vortex shedding period for
250 Ω provided that a PC-based configurator or HART frequencies less than 2 Hz.
communicator is not connected to it. Connecting a PC-based
configurator or HART communicator while operating in Digital Mode
this area may cause output disturbances and/or
communication problems. 0.5 second or the vortex shedding period for
2. With intrinsically safe certifications with a 24 V dc supply, frequencies less than 2 Hz.
an active barrier is required.
Pulse Output
 Raw mode: Vortex shedding frequency
 Frequency or Pulse mode: 0.25 s or the
vortex shedding period for frequencies less
than 2 Hz.
 PSS 1-8A8 A
FUNCTIONAL SPECIFICATIONS Page 11

Outputs Pulse Output Specifications

These flowmeters with full-featured electronics can The pulse output is an externally powered 2-wire
support the following outputs: transistor switch type output. This output can be
 HART Version -T: Digital and 4 to 20 mA output, configured using any applicable configuration device
with a pulse output to select one of three pulse output modes: raw,
frequency, and pulse. The following specifications
 HART Version -L: Digital output with a pulse apply to all three types of pulse output modes:
output
 Isolated 2-Wire Transistor Switch
Analog Output  Applied Voltage: 5 to 30 V dc
 Maximum “ON” State Voltage Drop: 1.0 V dc
Flow rate available as a 4 to 20 mA signal with
 Maximum “ON” State Current: 20 mA
the 20 mA value being set by the configured full
 Reverse polarity protected
range flow rate.
 Short circuit protected
Digital Output  Connectable to pulse counters.

Digital information is superimposed on a Output Combinations (4 to 20 mA Outputs)

4 to 20 mA signal (standard power versions) or
Flowmeter wired as a 2-wire device without pulse
the power supply loop (low power versions) at
output, and as a 4-wire device with pulse output.
1200 baud (see Table 1). For low power
versions, output is fixed at 10 mA. Flowmeter Ranges
Pulse Output Flowmeter is shipped with the flow range specified in
The pulse output can be configured with the full- the sales order or with a default flow range equal to
function electronics in one of the following the meter capacity. You can rerange the flowmeter
modes: and keep the same flow rate units, choose new flow
rate units from a built-in menu-selectable list, or
 Raw Mode: The vortex shedding frequency enter custom flow rate units. Table 2 is included for
is directly passed through, providing an reference only.
instantaneous, nondampened frequency
output. To determine flow velocity limits and use other sizing
tools, visit www.FlowExpertPro.com.
 Frequency mode: The frequency of this
output is a 50% duty cycle pulse output with
a frequency range of 0 to 10,000 Hz,
proportional to zero flow to the full range
flow rate/upper range value (URV).
 Pulse mode: The frequency of this output is
also a 50% duty cycle pulse output that is
configured to provide a pulse when a
determined volumetric/totalized unit has
flowed through the meter.
PSS 1-8A8 A
Page 12 FUNCTIONAL SPECIFICATIONS

Nominal Flow Velocity Limits Process Temperature Effect on K-Factor

These limits can be calculated using Table 2. In the There is an effect on the reference K-factor due to a
table, ρf is the fluid density at flowing conditions in diameter change of the flowtube bore with
lb/ft3 for U.S. customary units, or in kg/m3 for metric temperature. The effect is -0.3% of flow rate per
(SI) units. The specifications apply for most 100°F (55°C) increase in temperature. These
applications, but can deviate slightly for some flowmeters will automatically recompute a flowing
combinations of density and line size. K-factor based on detected changes in process
Table 2. Nominal Flow Velocity Limits temperature.

Standard Extended K-Factor Bias

Temperature Range Temperature Range
Range Provisions are made in the configuration menu to
Limit ft/s m/s ft/s m/s bias the flowmeter K-factor by a percent (%) value.
Lower Flowing K-factor value will be automatically
2.5/ ρ f 3.0/ ρ f 5.0/ ρ f 6.0/ ρ f
(a) recalculated when the % bias is entered.

Upper 250/ ρ f 300/ ρ f 250/ ρ f 300/ ρ f Static Pressure Limits

a. Values given for lower range velocity limit are at the lowest Minimum Static Pressure
LFCI setting.
The minimum static pressure is that pressure
Reference K-Factor which is sufficient to prevent flashing and meet
the pressure drop requirements to attain
The reference K-factor is a coefficient that specifies maximum flow rate. For sizing tools, visit
the flowmeter calibration and is expressed as pulses www.FlowExpertPro.com.
per unit volume, where pulses/unit volume = pulses
per second divided by volume flow per second. Maximum Static Pressure

The reference K-factor is the arithmetic mean value 3750 psig (258.6 bar) (25855 kPa) or that
of K over the factory-calibrated flow range. It is imposed by flange rating.
determined at the factory by actual flow calibration To determine the pressure drop for Model 84C
with water by comparison to a master flowmeter Vortex flowmeters and use other sizing tools,
calibration, or by actual static weight. Both visit www.FlowExpertPro.com.
calibrations are traceable to NIST. The reference
K-factor is entered in the flowmeter database and
stamped on the data plate. Once established, this
K-factor is available to gas, liquid, or steam.

Flowing K-Factor
The flowing K-factor is computed from the
K-reference expressed in specified flowing units, and
can be corrected for the following:
 Process Temperature
 Mating Pipe
 Upstream Disturbances
 PSS 1-8A8 A
FUNCTIONAL SPECIFICATIONS Page 13

Minimum Back Pressure (Volatile Liquids or Flange Pressure-Temperature Ratings

Low Pressure Conditions) See MI 019-222 for ANSI and DIN flange pressure-
Any condition that tends to contribute to the release temperature ratings. These ratings are also
of vapor from the liquid (flashing, which may also embedded in the FlowExpertPro sizing tool. Also
induce cavitation) shall be avoided by proper system note the temperature limit when fluorolube fill
design and operation of the flowmeter within the (200°F/90°C) or silicone fill (400°F/200°C) is used,
rated flow rate range. Location of the flowmeter or when no fill (500°F/260°C) is used with extended
should consider the need for using a back-pressure temperature applications.
valve, or for increasing inlet pressure. To avoid
flashing and to ensure stable vortex generation, the
minimum back pressure should be:
PG = (3)(ΔP) + (1.25)(pv) – (patm)
where
PG = Gauge pressure in kPa or psi five pipe
diameters downstream of the flowmeter
ΔP = Pressure loss in psi or kPa
pv = Vapor pressure at line conditions in psi or
kPa absolute
patm = Atmospheric pressure in psi or kPa
absolute

Functional Block Diagrams

Figure 3. HART 4 to 20 mA Topology Figure 4. HART Multidrop Topology
250 : MINIMUM BETWEEN POWER HOST
SUPPLY AND COMMUNICATOR COMPUTER
+
+ HART
INDICATOR POWER COMPATIBLE
+ SUPPLY MODEM 250
MIN.

+
FLOWMETER
ELECTRONICS HART CONTROLLER
HOUSING COMMUNICATOR OR RECORDER
MAY BE CONNECTED TEMP. DP INTELLIGENT
AT ANY POINT IN THE POWER
XMTR XMTR FLOWMETER SUPPLY
LOOP.
PSS 1-8A8 A
Page 14 PHYSICAL SPECIFICATIONS

P H Y S I C A L S P E C I F I C AT I O N S

Process-Wetted Parts
Table 3. Flowmeter Body, Shedder Bar, and Flanges

Line Sizes Body/Shedder Bar Flange

3/4 to 4 inch Cast 316 SS, CF8M 316 SS
(15 to 100 mm)
(Codes 008 to 040)
6 to 8 inch Cast 316 SS, CF8M 304 SS
(150 to 200 mm)
(Codes 060 to 080)
10 and 12 inch Fabricated 304 SS per ASTM 312 304 SS per ASTM A182
(250 and 300 mm) Grade F304/F304L
(Codes 100 and 120)

Table 4. Gaskets and Flow Dam (Sensor Seals)

Sensor Type Gasket Material Flow Dam Material

Standard Temperature Sensor PTFE PTFE
High Temperature Sensor 316 SS 316 SS/grafoil
Nickel alloy CW2M (a) Nickel alloy CW2M/grafoil (a)
a. Equivalent to Hastelloy® C-4C.

Flowmeter Mounting Electronics Housing and Housing Covers

Flowmeter can be located in a pipeline which may A two compartment housing separates the
run in any direction from the vertical (upward flow) to electronics from the field connections. Housing and
the horizontal. The electronics housing can also be covers are low copper, die-cast aluminum alloy with
rotated 270° (in 90° increments) with respect to the an epoxy finish. Buna-N O-ring seals are used to
body. A vertical pipeline is preferred for batch seal the housing covers, housing neck, and terminal
operations to provide improved full line assurance. block.
See “RECOMMENDED MOUNTING Figure 5. Terminal Block
ARRANGEMENTS” on page 20. EARTH (GROUND) TERMINAL BLOCK
SCREW LOCATED LOCATED IN FIELD
Electrical Connections EXTERNAL TO TERMINAL SIDE
TERMINAL BLOCK OF HOUSING
Field wires enter through 1/2 NPT or M20 conduit
threaded entrances on either side of the electronics + +
housing. Wires terminate under screw terminals and
P
washers on terminal block (see Figure 5) in the field (+) AND (-) U
terminal compartment. Unused entrance is plugged POWER L
to ensure moisture and RFI/EMI protection. TERMINALS S
E

PULSE
OUTPUT
PHYSICAL PE TERMINALS
EARTH (GROUND)
 PSS 1-8A8 A
PHYSICAL SPECIFICATIONS Page 15

Electronics Module NACE Certification

Printed wiring assemblies (PWAs) are conformally The Model 84C flowmeters have been designed to
coated for moisture and dust protection. meet the requirements of NACE Standard
MR-0175-2003 for use in H2S Sour Oilfield
Environmental Protection environments. The design and process wetted
The electronics housing has the dust tight and materials also comply with NACE Standard
weatherproof rating of IP66 as defined by MR-0103-2007 for use in corrosive petroleum
IEC 60529, and provides the environmental and refining environments. A NACE compliance
corrosion resistant protection rating of NEMA 4X. certificate is available by selecting the -Q option.

Data Plate Dimensions

Stainless steel data plate encircles and is secured to Refer to “DIMENSIONS – NOMINAL” on page 26 for
the lower part of the electronics housing. It includes general outline data. For more dimensional details,
conventional Model and operating data, such as the refer to DP 019-127.
factory calibration factor (K-factor). If additional tag
Approximate Weight
data space is required, an optional Stainless Steel
Customer Tag is offered. Refer to Table 5. Weights shown are approximate
and are meant as a guide.
Standard temperature flowmeter weights are listed
for integrally mounted electronics housings. There is
a slight weight difference for high temperature
flowmeters (adds about 1 lb (0.5 kg)), and for remote
mounted housings (housing replaced by connector
head assembly/junction box). The electronics
housing itself weighs about 4 lbs (2 kg) and varies
slightly depending on whether indicator/configurator,
and/or extended housing covers are used.
Table 5. Model 84C Approximate Weight

Nominal Line Size Flange Material Weight, lb (kg)

0.75 in Class 150 316 SS 10.4 (4.71)
0.75 in Class 1500 316 SS 19.3 (8.75)
1 in Class 150 316 SS 12.2 (5.53)
1 in Class 1500 316 SS 24.3 (11.02)
1.5 in Class 150 316 SS 16.7 (7.57)
1.5 in Class 1500 316 SS 34.5 (15.65)
2 in Class 150 316 SS 20.9 (9.48)
2 in Class 1500 316 SS 54.2 (24.58)
3 in Class 150 316 SS 43.0 (19.50)
3 in Class 1500 316 SS 109.7 (49.76)
4 in Class 150 316 SS 46.4 (21.05)
4 in Class 1500 316 SS 155.9 (70.72)
PSS 1-8A8 A
Page 16 PHYSICAL SPECIFICATIONS

Table 5. Model 84C Approximate Weight (Continued)

Nominal Line Size Flange Material Weight, lb (kg)

6 in Class 150 316 SS 77.6 (35.2)
6 in Class 600 316 SS 178.1 (77.92)
6 in Class 1500 316 SS 357.0 (161.93)
8 in Class 150 316 SS 127.3 (57.74)
8 in Class 600 316 SS 289.4 (131.26)
8 in Class 1500 316 SS 657.2 (298.1)
10 in Class 150 304 SS 160.0 (72.57)
10 in Class 600 304 SS 476.2 (216.0)
12 in Class 150 304 SS 252.4 (114.48)
12 in Class 600 304 SS 540.4 (245.12)
DN15 PN40 316 SS 12.3 (5.58)
DN15 PN100 316 SS 16.2 (7.35)
DN25 PN40 316 SS 13.4 (6.08)
DN25 PN160 316 SS 19.1 (8.66)
DN40 PN40 316 SS 17.9 (8.12)
DN40 PN160 316 SS 28.2 (12.79)
DN50 PN40 316 SS 21.7 (9.84)
DN50 PN160 316 SS 38.4 (17.42)
DN80 PN40 316 SS 33.3 (15.10)
DN80 PN160 316 SS 58.6 (26.58)
DN100 PN40 316 SS 44.4 (20.14)
DN100 PN160 316 SS 81.2 (36.83)
DN150 PN16 316 SS 61.5 (27.89)
DN150 PN160 316 SS 195.8 (88.81)
DN200 PN16 316 SS 94.8 (43)
DN200 PN160 316 SS 356.7 (161.79)
DN250 PN16 304 SS 143.6 (65.13)
DN250 PN100 304 SS 421.6 (191.23)
DN300 PN16 304 SS 204.4 (92.71)
DN300 PN100 304 SS 618.0 (280.32)
 PSS 1-8A8 A
PRODUCT SAFETY SPECIFICATIONS Page 17

Table 6. Body Internal Dimensions — Body Style Table 7. Body Internal Dimensions — Body Style
F — Flanged for Schedule 80 Bore (a) F — Flanged for Schedule 160 Bore (a)

ANSI/DIN Nominal ANSI/DIN Nominal

Line Size Bore (ID) Line Size Bore (ID)

in mm in mm in mm in mm
0.75 15 0.74 18.8 2.00 50 1.69 42.8
1.00 25 0.96 24.3 3.00 80 2.63 66.7
1.50 40 1.50 38.1 4.00 100 3.44 87.3
2.00 50 1.94 49.2 6.00 150 5.19 131.8
3.00 80 2.87 72.9 8.00 200 6.81 173.1
4.00 100 3.83 97.2 a. Dimensions are for following flange
6.00 150 5.76 146.3 offerings:
– 2”-4”: ANSI Class 1500
8.00 200 7.63 193.8 – 6”-8”: ANSI Class 900-1500
10.00 250 9.56 242.9 – DN150-200: PN160
12.00 300 11.38 289.0
a. Dimensions are for following flange offerings:
– 3/4”-1.5”: ANSI Class 150-1500
– DN15-DN40: PN40-PN160
– 2”-4”: ANSI Class 150-900
– DN50-DN100: PN40-PN160
– 6”-12”: ANSI Class 150-600
– DN150-300: PN16-PN100

P R O D U C T S A F E T Y S P E C I F I C AT I O N S

Pressure Safety Personnel and Electrical Fire Safety

Designed to withstand pressure within ANSI/ASME This device is designed to be a minimum fire hazard
B16.5 Class 150, 300, 600, 900, or 1500 flange by using low energy power and adequate insulation
ratings, and DIN EN 1092-1, PN16, PN25, PN40, and separation of electrical circuits. The required
PN63, PN100, or PN160 flange ratings. See standards of worldwide testing agencies such as
MI 019-222 for ANSI and DIN flange pressure- FM, CSA, ATEX, IECEx, and OSHA have been
temperature ratings. For other flange ratings, fulfilled.
centering spacers are provided.
PSS 1-8A8 A
Page 18 ELECTRICAL SAFETY SPECIFICATIONS

E L E C T R I C A L S A F E T Y S PE CI F I CAT I O N S
The Model 84C has been designed to meet the electrical safety descriptions listed below. For detailed
information, or status of the testing laboratory approval/certification, contact Global Customer Service.
With intrinsically safe approvals and certifications with a 24 V dc supply, an active barrier is required.
Refer to MI 019-177 for FM and CSA Connection Diagrams; refer to MI 019-179 for ATEX and IECEx Safety
Information.
Table 8. Electrical Safety Specifications

Elect. Safety
Agency, Types of Protection, Design
and Area Classification Application Conditions Code
ATEX Intrinsically safe: Integrally mounted or remote mounted AA
II 1GD; II 2D; (electronics and junction box).
Ex ia IIC T4 Ga Temperature Class T4; Ta = -40° to +80°C
Ex tb IIIC T103°C Db
ATEX Flameproof: Integrally mounted electronics. AD
II 2/1 (1) GD; II 2D Temperature Class T4; Ta = -20° to +80°C
Ex d [ia Ga] ia IIC T4 Gb; Ex tb IIIC T85°C Db
ATEX Flameproof: Electronics housing of remote mounted version.
II 2 (1) GD; II 2D Temperature Class T4; Ta = -20° to +80°C
Ex d [ia Ga] IIC T4 Gb; Ex tb IIIC T85°C Db
ATEX Flameproof: Flowtube junction box of remote mounted
II 1 GD; II 2D version.
Ex ia Ga IIC T4 Gb; Ex tb IIIC T103°C Db Temperature Class T4; Ta = -20° to +80°C
CSA Intrinsically safe: Temperature Class T4; Ta = -40° to +80°C CA
Class I, II, III, Div. 1, Groups A, B, C, D, E, F, and G.
Ex ia IIC T4
CSA Explosion proof with Intrinsically Safe sensor Temperature Class T5; Ta = 60°C CD
connections:
Class I, Div. 1, Groups A, B, C, and D;
Class II, Div 1, Groups E, F, and G; Class III;
[Ex ia]; T5; Ex d [ia] IIC T5
Dust-ignitionproof for Class II, Div. 1,
Groups E, F, and G;
Class III, Div. 1
Also Zone certified Ex d [ia] IIC. Temperature Class T5; Ta = -40° to +80°C
CSA Class I, Division 2: Temperature Class T4; Ta = 80°C CN
Class I, Div. 2, Groups A, B, C, and D;
Class II, Div. 2, Groups E, F and G; Class III.
FM Intrinsically safe: Temperature Class T4; Ta = 80°C FA
Class I, II, III, Div. 1, Groups A, B, C, D, E, F, G; T4
Class I Zone 0 AEx ia IIC T4
FM Explosion proof with Intrinsically Safe sensor Temperature Class T5; Ta = 85°C FD
connection:
Class I, Div.1, Groups B, C, and D;
Dust-ignitionproof for Class II, Div. 1, Groups E, F,
and G; Class III, Div. 1.
 PSS 1-8A8 A
ELECTRICAL SAFETY SPECIFICATIONS Page 19

Table 8. Electrical Safety Specifications (Continued)

Elect. Safety
Agency, Types of Protection, Design
and Area Classification Application Conditions Code
FM Nonincendive: Temperature Class T4; Ta = 80°C FN
Class I, Div. 2, Groups A, B, C, and D;
Class II, Div. 2, Groups F and G
Class III, Div. 2
INMETRO Intrinsically safe Temperature Class T4; Ta = +80°C BA
INMETRO Flameproof Temperature Class T5; Ta = +85°C BD
IECEx Intrinsically safe: Temperature Class T4; Ta = -40° to +80°C EA
Ex ia IIC T4 Ga;
Dust-ignitionproof Ex tD T103°C Db A20 IP66
IECEx Flameproof: Integrally mounted electronics. ED
Ex d [ia] ia IIC T4 Gb Temperature Class T4; Ta = -20° to +80°C
Dust-ignitionproof Ex tD T85°C Db A20 IP66
IECEx Flameproof: Electronics housing of remote mounted version.
Ex d [ia] IIC T4 Gb Temperature Class T4; Ta = -20° to +80°C
Dust-ignitionproof Ex tD T85°C Db A20 IP66
NEPSI Intrinsically safe, Zone 0, Ex ia IIC Temperature Class T4; Ta = -40° to +80°C NA
NEPSI Flameproof, Zone 1, Ex d IIC Temperature Class T5; Ta = -20° to +85°C ND
(except acetylene)
Unit with CE mark and PED controls and records YY
Unit does not have CE mark; not to be installed in European Union (EU) countries ZZ
PSS 1-8A8 A
Page 20 RECOMMENDED MOUNTING ARRANGEMENTS

R E C O M M E N D E D M O U N T I N G A R RA N GE M E N T S
Table 9. Recommended Flowmeter Mounting

Flowmeter for Use With:

Saturated Superheated
Flowmeter Mounting Arrangements Liquid Gas Steam Steam
Housing Above Pipe Yes Yes No Yes
(a) (b)

Housing Below Pipe Yes Yes Yes Yes

(c) (d) (b) (b)
(d)
(e)

Housing to Side of Yes Yes No Yes

Pipe (b)

Housing to Side and Yes Yes No Yes

Below Pipe (e) (b)

Vertical Pipe, Flow Yes Yes No Yes

upward (b)

Vertical Pipe, Flow Yes Yes No Yes

Downward (f) (b)

a. Possibility of temporary start-up error due to trapped air.

b. Requires adequate insulation. See MI 019-222.
c. Best choice when errors due to start-up cannot be tolerated.
d. Recommended only for clean fluids.
e. Preferred for liquids with isolation valve.
f. Not preferred; must maintain full pipe with no voids in fluid.
 PSS 1-8A8 A
OPTIONAL SELECTIONS AND ACCESSORIES Page 21

O P T I O N A L S EL E C T I O N S A N D A C C E S S O R I E S

Options -B, -D, -E, -G: Cable Assembly to Options -F, -X: Welding Certificates – With
Remote Electronics Housing Flanged Body Flowtubes Only
When selecting Code -R for a Remote Mounted Two certificates are available. Option -F certifies that
Housing, a cable length must be selected. Four the fabrication of flowtubes by welders is to ASME
cable lengths are offered as follows: Boiler Code, Section IX. Option -X certifies that
welding is per ASME Boiler Code, Section IX and
Option Cable Length
Radiographic Examination.
-B 20 ft (6 m)
-D 30 ft (9 m) Option -P: Cable Connector - Hawke-Type Cable
-E 40 ft (12 m) Gland
-G 50 ft (15 m)
A brass cable gland with 1/2 NPT external thread
Option -H: Cleaning for Oxygen or Chlorine Gas provides support for field cable. Ensure that this
Service cable connector is qualified to meet the electrical
safety specification selected. See “ELECTRICAL
Process wetted parts are cleaned for oxygen or SAFETY SPECIFICATIONS” on page 18. Available
chlorine service in compliance with Compressed with Electronics Housing Codes T and R only
Gas Association's CGA-4.1 and ASTM G93. (1/2 NPT). Select Option -P.
Cleaning is not offered when an isolation valve, or
dual measurement or extended temperature meters Option -R: Cable Connector - PG11 Cable Gland
are selected. Select Option -H.
A PG11 cable gland with 1/2 NPT external thread
Option -A: Tamperproof and Custody Transfer provides strain relieved support for field cable. The
PG11 is for cable diameters from 0.31 to 0.47 inches
This option is recommended if you need (8 to 12 mm). Ensure that this cable connector is
tamperproof sealing for housing and covers. qualified to meet the electrical safety specification
Select Option -A. selected. See “ELECTRICAL SAFETY
Option -J: Gold Plated Sensor SPECIFICATIONS” on page 18. Available with
Electronics Housing Codes T and R only (1/2 NPT).
This option is recommended for H2 (Hydrogen) Select Option -R.
processes. Select Option -J.
Option -T: Conduit Fitting
Options -L, -M, -Q: Foxboro Certificates of
A conduit fitting is available with Remote Mounting
Conformance and Compliance
Code R only. It is provided when conduit is used to
Three material certificates are offered. Option -L enclose the cable between the flowtube body and
provides a certificate of compliance to the remote transmitter. Both ends of the fitting are
specifications of the Foxboro Quality System, which 1/2 NPT and interconnect the conduit and
conforms to ISO 9001. Option -M is a certification of transmitter at the housing and flowtube ends.
material for process wetted metal (conforms to Specify Option -T.
BS EN 10204 3.1). Option -Q certifies that process-
wetted materials meet NACE Standards AS Code MTS: Stainless Steel Customer Tag
MR-0175-2003 and MR-0103-2007. Accessory

Option -N: Certified Calibration Certificate A 1.5 x 3.5 in (40 x 90 mm) stainless steel tag for
customer data that does not fit on the standard plate.
A calibration and pressure test sheet come standard It is fastened to housing with wire. Accommodates
with each flowmeter. A certified flow calibrated 10 lines of data with 40 characters/spaces per line.
K-factor and pressure test certificate is available by Tag will also show customer’s K-factor (information
selecting Option -N. with flowing conditions being submitted with sales
order). Specify AS Code MTS.
PSS 1-8A8 A
Page 22 MODEL CODE

M O D E L C OD E
Description Model
Vortex Flowmeter 84C
Body Style
Flanged F
Nominal Line Size
3/4 in (DN15, 15 mm) Line Size 008
1 in (DN25, 25 mm) Line Size 010
1 1/2 in (DN40, 40 mm) Line Size 015
2 in (DN50, 50 mm) Line Size 020
3 in (DN80, 80 mm) Line Size 030
4 in (DN100, 100 mm) Line Size 040
6 in (DN150, 150 mm) Line Size 060
8 in (DN200, 200 mm) Line Size (a) 080
10 in (DN250, 250 mm) Line Size 100
12 in (DN300, 300 mm) Line Size 120
Electronics Version
HART Communication Protocol -T
Low Power with HART Communication Protocol, output fixed at 10 mA -L
Pulse Output
Standard pulse output capability P
Body, Flange, and Shedder Bar Material
316 SS and 316/304 SS: R
For line sizes 008 to 040, cast 316 SS (CF8M) body and shedder bar with 316 SS flanges
For line sizes 060 to 080, cast 316 SS (CF8M) body and shedder bar with 304 SS flanges
304 SS: E
For line sizes 100 to 120, fabricated 304 SS body and shedder bar with 304 SS flanges
316 SS with face-to-face lengths backward compatible with Style A Model 84 Vortex flowmeters: (b) Y
For line sizes 008 to 040, cast 316 SS (CF8M) body and shedder bar with 316 SS flanges
(Line sizes 060 to 120 already have backward compatible face-to-face lengths)
 PSS 1-8A8 A
MODEL CODE Page 23

M O DE L C O D E ( C O N T I N U E D)
Description Model
End Connections and Flange Rating
ANSI Class 150 RF F1
ANSI Class 300 RF F2
ANSI Class 600 RF F3
ANSI Class 900 RF (not available with line sizes 100 and 120) F4
ANSI Class 1500 RF (not available with line sizes 100 and 120) F5
ANSI Class 150 RTJ (not available with line size 008) T1
ANSI Class 300 RTJ T2
ANSI Class 600 RTJ T3
ANSI Class 900 RTJ (not available with line sizes 100 and 120) T4
ANSI Class 1500 RTJ (not available with line sizes 100 and 120) T5
PN16 EN1092-1 Raised Face Type “D” Nut Groove (available with line sizes 060 to 120 only) D1
PN25 EN1092-1 Raised Face Type “D” Nut Groove (available with line sizes 080 to 120 only) D2
PN40 EN1092-1 Raised Face Type “D” Nut Groove D3
PN63 EN1092-1 Raised Face Type “D” Nut Groove (available with line sizes 020 to 120) (c) D6
PN100 EN1092-1 Raised Face Type “D” Nut Groove D7
PN160 EN1092-1 Raised Face Type “D” Nut Groove (not available with line sizes 008, 100, 120) D5
PN16 EN1092-1 Raised Face Finish Type B1 (available with line sizes 060 to 120 only) B1
PN25 EN1092-1 Raised Face Finish Type B1 (available with line sizes 080 to 120 only) B2
PN40 EN1092-1 Raised Face Finish Type B1 B3
PN63 EN1092-1 Raised Face Finish Type B2 (d) B6
PN100 EN1092-1 Raised Face Finish Type B2 B7
PN160 EN1092-1 Raised Face Finish Type B2 (not available with line sizes 008, 100, 120) B5
PN40 EN1092-1 Raised Face Finish Type F C3
PN100 EN1092-1 Raised Face Finish Type F C7
Single or Dual Measurement and Isolation Manifold
Single Measurement; No Isolation Manifold S
Multivariable Selection
Temperature compensation only (up to 500°F/260°C maximum with Multivariable Selection T.) (e) T
Sensor Fill, Temperature Range, and Material (e)
Standard Temperature Range (with Fill Fluid)
Fluorolube Fill, 0 ° to 200 °F (-20° to +90°C) Nickel alloy CW2M (f) D
Fluorolube Fill, 0 ° to 200 °F (-20° to +90°C) Stainless Steel CF3M F
Silicone Fill, 0 ° to 400 °F (-20° to +200°C) Nickel alloy CW2M (f) R
Silicone Fill, 0 ° to 400 °F (-20° to +200°C) Stainless Steel CF3M S
Extended Temperature Range (No Fill Fluid)
Unfilled, 300 ° to 700 °F (149 ° to 371 °C) Nickel alloy CW2M (f) A
Sensor Options A and B are rated to 500°F (260°C) maximum with Multivariable Selection T.
Unfilled, 300 ° to 700 °F (149 ° to 371 °C) Stainless Steel CF3M B
Sensor Options A and B are rated to 500°F (260°C) maximum with Multivariable Selection T.
Mounting and Conduit Openings for Electrical Housing
Aluminum Integral Top Mounted 1/2-NPT Conduit Connections T
Aluminum Integral Top Mounted M20 Conduit Connections V
Aluminum Remote Mounted 1/2-NPT Conduit Connections (g) R
Aluminum Remote Mounted M20 Conduit Connections (g) W
PSS 1-8A8 A
Page 24 MODEL CODE

M O DE L C O D E ( C O N T I N U E D)
Description Model
Local Digital Indicator/Configurator
No Digital Indicator/Configurator N
Full Function Digital Indicator/Configurator J
Electrical Safety (refer to Electrical Safety Specifications section for details) (h)
ATEX intrinsically safe AA
ATEX flameproof AD
CSA intrinsically safe CA
CSA Division 2 CN
CSA explosion proof CD
FM intrinsically safe FA
FM nonincendive FN
FM explosion proof FD
IECEx intrinsically safe EA
IECEx flameproof ED
NEPSI intrinsically safe NA
NEPSI flameproof ND
INMETRO intrinsically safe BA
INMETRO flameproof BD
No Agency Electrical Certifications; with CE mark, PED Controls and Records YY
No Agency Electrical Certifications; no CE mark; Units not to be installed in European Union (EU) countries ZZ
Optional Selections
Cable Length Selection for Remote Electronics Housing
20 ft (6 m) Cable to Connect to Remote Electronics Housing -B
30 ft (9 m) Cable to Connect to Remote Electronics Housing -D
40 ft (12 m) Cable to Connect to Remote Electronics Housing -E
50 ft (15 m) Cable to Connect to Remote Electronics Housing -G
Instruction Manual
Detailed Instruction Manual in hard copy format (i) -C
Foxboro Certificates of Compliance/Conformance
Standard Certificate of Compliance -L
Foxboro Material Certification of Process Wetted Metal (Conforms to BS EN 10204 3.1.B) -M
Process Wetted Parts Comply with NACE Standards MR-0175-2003 and MR-0103-2007 -Q
Foxboro Calibration Certificate
Calibration and Pressure Test Certified Copy -N
Cable Connectors – with Electronics Housing Codes T and R only (1/2 NPT)
Hawke Cable Gland (available only with electrical safety codes YY and ZZ) -P
PG11 Cable Gland, Trumpet Shaped (not available with explosion proof/flameproof certifications) -R
 PSS 1-8A8 A
MODEL CODE Page 25

M O DE L C O D E ( C O N T I N U E D)
Description Model
Welding Certificate (select only one option)
Welding certified to conform to ASME Boiler and Pressure Vessel Code, Section IX -F
Welding certified to conform to ASME Boiler and Pressure Vessel Code, Section IX and Radiographic -X
Examination (X-Ray) of welds
Cleaning for Oxygen/Chlorine Service
Cleaning of Process Wetted Parts per Compressed Gas Association's CGA G-4.1 and ASTM G93 -H
- Available only with Body/Flange/Shedder Material Codes R and Y.
- Contact Global Customer Support for availability with line sizes 100 to 120
Tamperproof and Custody Transfer Options
Tamperproof sealing for housing and covers -A
Sensor Plating
Gold Plated Sensor -J
Optional Conduit Fitting
Adapter for use with 1/2 NPT conduit (Available only with Remote Mounted Housing Code R) -T

Example: 84CF020-TPRF1STDTJYY-N
a. For Line Size 008 with F4, F5, T4, T5, D5, B5 End Connections, Welding Certificate Option -X is included.
b. Body, Flange, and Shedder Bar Material Selection Y is recommended only for replacement of Style A flowmeters.
c. For Line Sizes 008, 010, and 015, select End Connection D7.
d. For Line Sizes 008, 010, and 015, select End Connection B7.
e. Multivariable Option T allows for up to 500°F (260°C). The temperature element of the RTD is rated only up to 500°F (260°C).
Use caution when using a Vortex high temperature sensor, which may be rated to a higher temperature.
f. Equivalent to Hastelloy® C-4C.
g. For remote mounting, select optional cable length.
h. The Model 84C has been designed to meet the electrical safety descriptions listed in this table. For detailed information, or status
of the testing laboratory approval/certification, contact Global Customer Service.
i. A DVD containing the full documentation set is shipped standard with the product.
PSS 1-8A8 A
Page 26 DIMENSIONS – NOMINAL

DIMENSIONS – NOMINAL

84C FLANGED BODY FLOWMETER WITH INTEGRALLY MOUNTED ELECTRONICS

96 30 124
3.8 1.2 4.9
CONDUIT
CONNECTION

CONDUIT
CONNECTION

224 (STANDARD
WITH 8.8 TEMP.)
DIGITAL DISPLAY/
OR
CONFIGURATOR
HIGH TEMPERATURE 290 (EXTENDED
EXTENSION BONNET 11.4 TEMP.)
EXTERNAL
NOT SHOWN EARTH

F
A
CL B

FLOWMETER
BODY FLANGE
DIMENSION IN
ACCORDANCE WITH mm
EN 1092-1 AND ANSI B16.5 C in
Refer to Table 10, Table 11, and Table 12 for dimensions A, B, C, and F.
 PSS 1-8A8 A
DIMENSIONS – NOMINAL Page 27

REMOTELY MOUNTED ELECTRONICS HOUSING

188
7.4
96 30 124
3.8 1.2 4.9

10.2 mm (0.40 in)

HOLES, SIX PLACES, 140 WITH
FOR SURFACE OR 5.5 DIGITAL DISPLAY/ BRACKET FOR
PIPE MOUNTING. CONFIGURATOR SURFACE OR
USE BRACKET PIPE MOUNTING.
AS TEMPLATE 318
WHEN SURFACE 12.5 U-BOLT SHOWN
MOUNTING CABLE TO FOR MOUNTING
FLOWTUBE VERTICAL DN 50
ASSEMBLY OR 2 in PIPE. FOR
69.9 HORIZONTAL PIPE,
2.75 46 MOUNTING,
1.8 ROTATE U-BOLT
69.9 90 DEGREES.
2.75
99
3.9
NOTE:
WHEN THE BRACKET IS USED FOR WALL MOUNTING, REPLACE U-BOLT WITH TWO (OR
FOUR IF NECESSARY) 0.375 IN BOLTS OF SUFFICIENT LENGTH TO PASS THROUGH THE
BRACKET AND SURFACE

INTEGRAL JUNCTION BOX AND REMOTELY MOUNTED ELECTRONICS HOUSING

112
4.4

STANDARD TEMP. 205

8.0
OR
EXTENDED TEMP. 271
10.7

CL B A

C mm
in
Refer to Table 10, Table 11, and Table 12 for dimensions A, B, C, and F.
PSS 1-8A8 A
Page 28 DIMENSIONS – NOMINAL

Face-to-Face Dimension “C”

Before installing your flowmeter, check its data plate to determine its style: A, B or C. The style indicator
(ST) on the data plate is illustrated below.
Tables 10 and 11 provide face-to-face lengths of Model 84C flanged flowmeters with Body, Flange, and
Shedder Bar Material model code selections R and E. The face-to-face lengths of these 84C flowmeters
have matching face-to-face lengths as Model 84 Style B flanged flowmeters.
Table 12 provides face-to-face lengths of Model 84C flanged flowmeters with Body, Flange, and Shedder
Bar Material model code selection Y. The face-to-face lengths of these 84C flowmeters have matching face-
to-face lengths as Model 84 Style A flanged flowmeters. Model code selection Y should only be used to
replace Style A flowmeters.

Model Plant of Manufacture

Code and Date
Serial Maximum Working
Number Pressure

MODEL 84CF040-TPRF1SRTJCA ST C
S/N 12345678 ORIGIN 2A0713
Style Indicator
SUPPLY 24 V dc nom., 22 mA max. MWP @ 100°F (38°C) 720 PSI
MAX. AMB. TEMP. 176°F (80°C) MAX. PROC. TEMP. 800°F Maximum
Supply REF K-FACT. 258 PULSES / ft3 - 9.11 PULSES / liter Process
Voltage K-FACTOR PULSES / Temperature
CUST. TAG
THIS PRODUCT IS PROTECTED BY ONE OR MORE U.S. PATENTS
AND OTHERS PENDING. CORRESPONDING PATENTS
HAVE BEEN ISSUED OR ARE PENDING IN OTHER COUNTRIES.

Calibration Maximum Ambient

K-Factor Temperature

Table 10. 84C Single Measurement Configuration With ANSI Flanges and Integral Housing;
Body, Flange, and Shedder Bar Material Model Code Selections R and E
Dimensions in inches
Nominal C (a) C (a)
Line Size Flange Type A (O.D.) B (I.D.) RF RTJ F
3/4 in Class 150 3.88 0.74 6.56 -- 1.82
Class 300 4.62 0.74 6.94 7.32 1.82
Class 600 4.62 0.74 7.44 7.44 1.82
Class 900 5.12 0.74 8.44 8.44 1.82
Class 1500 5.12 0.74 8.44 8.44 1.82
1 in Class 150 4.25 0.96 6.80 7.18 1.93
Class 300 4.88 0.96 7.32 7.70 1.93
Class 600 4.88 0.96 7.82 7.82 1.93
Class 900 5.88 0.96 8.7 8.70 1.93
Class 1500 5.88 0.96 8.7 8.70 1.93
 PSS 1-8A8 A
DIMENSIONS – NOMINAL Page 29

Table 10. 84C Single Measurement Configuration With ANSI Flanges and Integral Housing;
Body, Flange, and Shedder Bar Material Model Code Selections R and E (Continued)
Dimensions in inches
Nominal C (a) C (a)
Line Size Flange Type A (O.D.) B (I.D.) RF RTJ F
1 1/2 in Class 150 4.62 1.50 7.32 7.70 2.20
Class 300 6.12 1.50 7.82 8.20 2.20
Class 600 6.12 1.50 8.44 8.44 2.20
Class 900 7.00 1.50 9.44 9.44 2.20
Class 1500 7.00 1.50 9.44 9.44 2.20
2 in Class 150 6.00 1.94 7.75 8.13 2.32
Class 300 6.50 1.94 8.25 8.75 2.32
Class 600 6.50 1.94 9.01 9.13 2.32
Class 900 8.50 1.94 11.25 11.37 2.32
Class 1500 8.50 1.69 11.25 11.37 2.20
3 in Class 150 7.50 2.87 8.88 9.26 2.75
Class 300 8.25 2.87 9.62 10.12 2.75
Class 600 8.25 2.87 10.38 10.50 2.75
Class 900 9.50 2.87 11.88 12.00 2.75
Class 1500 10.50 2.63 13.12 13.25 2.62
4 in Class 150 9.00 3.83 9.62 10.00 3.35
Class 300 10.00 3.83 10.38 10.88 3.35
Class 600 10.75 3.83 12.12 12.24 3.35
Class 900 11.50 3.83 13.12 13.24 3.35
Class 1500 12.25 3.44 13.88 14.00 3.35
6 in Class 150 11.00 5.76 12.00 12.38 4.42
Class 300 12.50 5.76 12.76 13.26 4.42
Class 600 14.00 5.76 14.74 14.86 4.42
Class 900 15.00 5.19 16.5 16.62 4.42
Class 1500 15.50 5.19 19.00 19.25 4.42
8 in Class 150 13.50 7.63 15.00 15.38 5.47
Class 300 15.00 7.63 15.75 16.26 5.47
Class 600 16.50 7.63 18.00 18.12 5.47
Class 900 18.50 6.81 20.26 20.38 5.47
Class 1500 19.00 6.81 24.26 24.64 5.47
10 in Class 150 16.00 9.56 15.00 15.38 6.55
Class 300 17.50 9.56 16.24 16.74 6.55
Class 600 20.00 9.56 19.5 19.62 6.55
12 in Class 150 19.00 11.37 17.00 17.38 7.55
Class 300 20.50 11.37 18.24 18.74 7.55
Class 600 22.00 11.37 20.74 20.76 7.55
a. Overall length “C” is ±0.250 in (±6.4 mm).
PSS 1-8A8 A
Page 30 DIMENSIONS – NOMINAL

Table 11. 84C Single Measurement Configuration With DIN Flanges and Integral Housing;
Body, Flange, and Shedder Bar Material Model Code Selections R and E
Dimensions in mm
Nominal
Line Size Flange Type A (O.D.) B (I.D.) C (a) F
15 mm PN 40 (b) 95.00 18.80 138.00 46.20
PN 100 105.00 18.80 152.00 46.20
25 mm PN 40 (b) 115.00 24.31 142.00 49.00
PN 100 140.00 24.31 178.00 49.00
PN 160 140.00 24.31 178.00 49.00
40 mm PN 40 (b) 150.00 38.10 152.00 55.90
PN 100 170.00 38.10 186.00 55.90
PN 160 170.00 38.10 190.00 55.90
50 mm PN 40 (b) 165.00 49.20 166.00 58.90
PN 63 180.00 49.20 194.00 58.90
PN 100 195.00 49.20 206.00 58.90
PN 160 195.00 49.20 220.00 58.90
80 mm PN 40 (b) 200.00 72.90 202.00 69.90
PN 63 215.00 72.90 230.00 69.90
PN 100 230.00 72.90 242.00 69.90
PN 160 230.00 72.90 258.00 69.90
100 mm PN 40 (b) 235.00 97.18 222.00 85.10
PN 63 250.00 97.18 248.00 85.10
PN 100 265.00 97.18 272.00 85.10
PN 160 265.00 97.18 292.00 85.10
150 mm PN 16 285.00 146.30 237.00 112.30
PN 40 (b) 300.00 146.30 277.00 112.30
PN 63 345.00 146.30 317.00 112.30
PN 100 355.00 146.30 357.00 112.30
PN 160 355.00 131.80 383.00 112.30
200 mm PN 16 340.00 193.68 302.00 138.90
PN 25 360.00 193.68 338.00 138.90
PN 40 375.00 193.68 354.00 138.90
PN 63 415.00 193.68 398.00 138.90
PN 100 430.00 193.68 438.00 138.90
PN 160 430.00 173.05 458.00 138.90
250 mm PN 16 405.00 242.87 318.00 166.40
PN 25 425.00 242.87 354.00 166.40
PN 40 450.00 242.87 388.00 166.40
PN 63 470.00 242.87 428.00 166.40
PN 100 505.00 242.87 492.00 166.40
 PSS 1-8A8 A
DIMENSIONS – NOMINAL Page 31

Table 11. 84C Single Measurement Configuration With DIN Flanges and Integral Housing;
Body, Flange, and Shedder Bar Material Model Code Selections R and E (Continued)
Dimensions in mm
Nominal
Line Size Flange Type A (O.D.) B (I.D.) C (a) F
300 mm PN 16 460.00 288.90 359.00 191.80
PN 25 485.00 288.90 387.00 191.80
PN 40 515.00 288.90 433.00 191.80
PN 63 530.00 288.90 483.00 191.80
PN 100 585.00 288.90 543.00 191.80
a. Overall length “C” is ±0.250 in (±6.4 mm).
b. May be used with PN 25 mating flange.

Table 12. 84C Single Measurement Configuration With ANSI Flanges and Integral Housing; Body,
Flange, and Shedder Bar Material Model Code Selection Y; Backward Compatible with Style A (a)
(Note: These versions should only be used when replacing a Model 84F
Style A meter or for stocking purposes for Model 84F Style A meters.)
Dimensions in inches
Nominal
Line Size Flange Rating A (O.D.) B (I.D.) C (b) F
3/4 in Class 150 3.88 0.74 6.00 1.82
Class 300 4.62 0.74 6.00
Class 600 4.62 0.74 6.50
1 in Class 150 4.25 0.96 6.50 1.93
Class 300 4.88 0.96 6.50
Class 600 4.88 0.96 7.00
1 1/2 in Class 150 4.62 1.50 7.25 2.20
Class 300 6.12 1.50 7.25
Class 600 6.12 1.50 7.88
2 in Class 150 6.00 1.94 7.75 2.32
Class 300 6.50 1.94 7.75
Class 600 6.50 1.94 8.50
3 in Class 150 7.50 2.87 8.75 2.75
Class 300 8.25 2.87 8.75
Class 600 8.25 2.87 9.50
4 in Class 150 9.00 3.83 9.50 3.35
Class 300 10.00 3.83 9.50
Class 600 10.75 3.83 10.50
a. Style B Vortex flowmeters with ANSI flanges contain a model code option for face-to-face
lengths that are backward compatible with Style A Vortex flowmeters. Style B model code
selection “Y” matches Style A model code selection “S”.
b. Overall length “C” is ±0.250 in (±6.4 mm).
PSS 1-8A8 A
Page 32

O RD E RI N G I N S T R U C T I O N S
1. Model Number.
2. Flow Data:
a. Maximum, minimum, and normal flow rate.
b. Fluid composition and viscosity at operating temperatures.
c. Fluid density or relative density (specific gravity).
d. Maximum, minimum, and normal operating temperatures.
e. Maximum, minimum, and normal operating pressures.
f. Mating pipe schedule.
g. Type and location (distance) of upstream disturbances.
3. Calibration Information (analog output only); maximum flow rate at 20 mA output.
4. Electrical Classification.
5. Optional Selections and Accessories (see “Optional Selections and Accessories” section).
6. Customer Tag Data.

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