LEVEL MEASUREMENT GUIDE

Level choices for your

application
siemens.com/level
CONNECT. CONTROL. SAVE

The front lines

of digitalization
Enormous potential benefits await your But even in the age of digital, you still need accurate,
reliable, and rugged process instrumentation. Because if
operations with Industry 4.0. With
field instruments can’t supply the right data, even the most
unparalleled control and access, you sophisticated digitalization plans will fail.
now have complete knowledge of what’s Intelligent level monitoring brings intelligent operations:
happening in your plant at all times. Connect devices to Siemens MindSphere Cloud for Industry
and use SITRANS IQ apps to see your plant open up before
you.

Commission, monitor, and diagnose operations with

the touch of your smartphone through the SITRANS
mobile IQ app.

Save operators’ time and eliminate inefficiencies through

optimized processes, delivering cost savings directly to your
bottom line.

With the knowledge that no single technology can address

the needs of all industrial applications, Siemens provides a
complete range of level measurement devices. All backed by
our global support network, providing experienced sales and
technical assistance when and where you need it.

2
Contents
Technology selector 5
Level controllers 8
Ultrasonics10
Radar12
Continuous contact 16
Point level 18
Hydrostatic20
Level by weight 22
Remote monitoring and displays  26
Digitalization28
Support30

3
 Because no single technology
measures level in all applications,
Siemens offers selection.
Start with the right product, finish with low cost of ownership and increased safety.

Non-contacting technology Ultrasonic Radar

Always consider non-contacting technology first.

SITRANS LU and SITRANS LR ultrasonic and radar
technologies measure most level applications.

Minimal maintenance

No wear and tear

Easiest to commission and install

Contacting technology Pressure Guided wave radar Capacitance Weighing

For high accuracy dosing/batching use SIWAREX (weighing).

SITRANS LG (guided wave radar), SITRANS P (pressure), and
SITRANS LC (capacitance) are the answer for the following:

Small process connections

Interface detection

Extreme pressure and temperature

applications

Safety and assurance Control

For point level detection, safety of Pre-programmable control features, datalog-

personnel, back-up control, and to avoid ging, extra inputs/outputs, full communica-
costly shutdowns, install point level tion. For applications when you want more
devices like Pointek CLS, SITRANS LCS, than strictly level measurements.
SITRANS LVL, SITRANS LVS or SITRANS LPS.

SITRANS LUT400 MULTIRANGER SITRANS LT500

Technology selector | Controllers | Ultrasonics | Radar | Continuous contact | Point level | Hydrostatic | Level by weight | Remote monitoring and displays | Digitalization | Support

4
Level technology selector
• preferred
• condition dependent

Continuous level Point level

Hydrostatic pressure
Guided wave radar

Capacitance

Capacitance
Gravimetric
Ultrasonic

Ultrasonic
Vibration

Paddle
Radar

RF
Conditions

Measurement
Level • • • • • • • • • •
Interface (liquid/liquid) • • • •
Interface (liquid/solid) • • •
Volume • • • • • •
Mass • •
Flow (open channel) • •
Level Application
Changing density • • • • • • • •
Changing dielectric • • • • • • • • •
Aggressive chemicals* • • • • • • • • • •
Pressure/vacuum • • • • • • • •
High temperature • • • • • • • •
Cryogenic • • • •
Turbulence • • • • • • • • •
Steam • • • • • • • •
Hydrocarbon vapors/
solvents
• • • • • • •
Foam • • • • • • • • •
Buildup • • • • • • • • • •
High viscosity • • • • • • • • • •
Dust • • • • • • • • •
Solids powders • • • • • • • • •
Solids granules/pellets
< 25 mm (1")
• • • • • • • • •
Solids > 25 mm (1") • • • • • • •
* Check chemical compatibility.

Technology selector | Controllers | Ultrasonics | Radar | Continuous contact | Point level | Hydrostatic | Level by weight | Remote monitoring and displays | Digitalization | Support

5
 LEVEL MEASUREMENT

Because no single technology measures

level in all applications,
Siemens offers selection

Monitoring water levels in open channels. Tracking the amount

of grain in a silo. Measuring oil in a tank. Simply put, level
measurement tells you how much material is at a given location.

The right instrument for your application

Siemens level measurement instruments let you get on with your day. Easy 4-button program-
ming and graphical Quick Start Wizards deliver headache-free installation and setup.
Advanced processing means that operators aren’t spending valuable time repeatedly trouble-
shooting devices—instead they can be confident that these instruments are delivering reli-
able, accurate results.

Complementing our level technology is Siemens’ complete suite of

process instruments, gas analytics, automation, and drives for industries
around the globe:

Flow Gas analytics

Weighing Gear reducers
Pressure Motors
Temperature Control systems
Positioning Industrial communication
Power supplies PLCs
Process protection HMIs
Process controllers Drives
Remote displays Motion control
Process recorders

Technology selector | Controllers | Ultrasonics | Radar | Continuous contact | Point level | Hydrostatic | Level by weight | Remote monitoring and displays | Digitalization | Support

6
 SITRANS
LR250

SITRANS
SITRANS SITRANS
LU240
LVL200 LC300
SITRANS
LG250
ECHOMAX
TRANSDUCER

POINTEK
CLS200

MULTIRANGER

SITRANS P

SITRANS
LCS100

SITRANS
POINTEK LR560
CLS300

HI
SITRANS Cellular
LVS300
LO

1 2 3 4 S R T

SITRANS
SITRANS RD200
RD150 SITRANS SITRANS
SCSC T3CS
SITRANS
(SINGLE INPUT) (DUAL INPUT) RD500

HI

LO
SITRANS RD300

MENU

F1

F2

F3

SITRANS SITRANS
RD100 RD300

SITRANS
LPS200
SITRANS
LVS200

SIWAREX SIWAREX SIWAREX

WP231 WL200 WL200

Technology selector | Controllers | Ultrasonics | Radar | Continuous contact | Point level | Hydrostatic | Level by weight | Remote monitoring and displays | Digitalization | Support

7
 LEVEL CONTROLLERS

Ultimate control for your

application

After leading the market in ultra- Need high-accuracy open channel monitoring?
How about flexible control with multiple relays
sonic level controllers for the past
and ultrasonic level? Or perhaps you need a reli-
40 years, Siemens has evolved its able controller for long-range, high-frequency
industry-leading control solutions radar?
to include 80 GHz radar sensors. Siemens level controller portfolio answers all
these questions—and more.

The new SITRANS LT500 level, flow, and pump

controllers for radar transmitters—or any two-wire
4-20 mA devices—offers everything from basic
level control to complex pumping routines. Easily
retrofit older equipment with SITRANS LT500 and
siemens.com/controllers see how improved system control delivers savings
directly to your company’s bottom line.

Technology selector | Controllers | Ultrasonics | Radar | Continuous contact | Point level | Hydrostatic | Level by weight | Remote monitoring and displays | Digitalization | Support

8
 SITRANS LUT400 MultiRanger200 / HydroRanger200 SITRANS LT500
High accuracy and data logging Differential measurement and six First choice for radar sensor
control relays measurement at 80 GHz
Technology Ultrasonic Ultrasonic Ultrasonic, radar, 4-20 mA
Order No. 7ML5050 7ML5033 / 7ML5034 7ML60
SITRANS LUT400 are compact, single MultiRanger/HydroRanger are versatile SITRANS LT500 is a controller for level,
point, long range ultrasonic controllers short- to medium-range ultrasonic volume, volume flow, and pump applica-
for continuous level or volume mea- single and multi-vessel level monitor/ tions for radar and ultrasonic transmitters –
surement of liquids, slurries, and solids, controllers for virtually any application or any other 2-wire 4 to 20 mA devices.
and high accuracy monitoring of open in a wide range of industries.
channel flow.
Range 0.3 to 30 m (1 to 98 ft), sensor 0.3 to 15 m (1 to 49 ft), sensor Sensor dependent
dependent dependent
Key features • Digital receiver for high performance • Range of models for simple level • Single- and dual-point measurements
and reliability in noisy applications measurement or pump control to • Quick Start Wizards with 6 different
• Intuitive ease of use more complex for differential level, display views and optional view
• Advanced pump, alarm, and flow open channel measurement, advanced information
control features with three relays pump control, alarming, and gate • Compatible with SITRANS LR110/120,
• Integrated datalogger control SITRANS Probe LU240 and generic mA
• Real-time clock with daylight saving • Auto False-Echo Suppression to avoid inputs
time and energy-saving algorithms false echoes from fixed obstructions • Six fully programmable relays rated at 5A
• Intuitive ease of use for pump control and alarming
• Six relays • Datalogging, parameter backup and copy
configuration on micro memory card
Communications • HART • RS-485 with Modbus RTU or ASCII HART, Modbus RTU, PROFINET, PROFIBUS DP
or outputs • USB: Integrated web browser for local • SmartLinx cards for PROFINET, Modbus or PROFIBUS PA options
programming TCP/IP, Ethernet/IP, PROFIBUS DP,
DeviceNet
Data logging • •
Communication • •
options
High-accuracy flow •
Dual point • •
pump control

Technology selector | Controllers | Ultrasonics | Radar | Continuous contact | Point level | Hydrostatic | Level by weight | Remote monitoring and displays | Digitalization | Support

9
 ULTRASONICS

Active face technology keeps

transmitters free of material
buildup
Siemens non-contacting ultrasonic SITRANS Probe LU240 transmitters are a great
solution, where value and performance meet.
sensors and transmitters have active
These cost-effective, compact intelligent level
face technology which reduces transmitters give you the level, volume, and flow
material buildup and provides trou- measurement you need with field-proven echo
ble-free, reliable performance. Both processing.

our transmitters and transducers Siemens Echomax ultrasonic level transducers are
(when combined with a Siemens impervious to buildup, moisture, vibrations, and
flooding. With the ability to detect submergence
controller) feature Process Intelli-
– when paired with a submergence shield – these
gence, our field-proven echo transducers are a perfect fit for a range of indus-
processing algorithms, to guarantee trial applications. Siemens transducers are easy to
the most reliable performance install and require little to no maintenance. The
unmatched beam angle – stronger pulse and
possible.
sensitivity in a compact beam – make our trans-
ducers the most powerful in the industry.

siemens.com/ultrasonics

Technology selector | Controllers | Ultrasonics | Radar | Continuous contact | Point level | Hydrostatic | Level by weight | Remote monitoring and displays | Digitalization | Support

10
 SITRANS Probe LU240 Echomax transducers
2-wire transmitter with HART 7 Full range of options for all application needs
communications
Order No. 7ML511 7ML1106, 7ML1100, 7ML1115, 7ML1118, 7ML1171 and
7ML1123
SITRANS Probe LU240 is a cost-effective, compact, intelligent • Echomax XRS-5: for flumes and weirs
level solution for • Echomax ST-H: installation flexibility
liquid chemical inventory, monitoring small process vessels, and • Echomax XPS-10/15: liquids, solids and slurries
level monitoring measurement in the environmental industry. • Echomax XPS-30: deep wells and solids
Range 0.2 to 12 m (0.8 to 39 ft) 0.3 to 30 m (1 to 98 ft), model dependent
Process -40 to 80 °C (-40 to 176 °F) -40 to 95 °C (-40 to 203 °F), model
temperature dependent
Process pressure 0.5 bar 8 bar, model dependent
Key features • IP68 fully potted option with its fully encapsulated PVDF sen- • IP68 fully potted option with its fully encapsulated PVDF sen-
sor is resistant to corrosion, chemicals and extreme shock sor is resistant to corrosion, chemicals and extreme shock
• Battery and solar-powered friendly, • PVDF, ETFE or PVDF copolymer and
with low start-up current and 10.5-volt operation CSM face
• Reduced blanking distance • Submergence detection with shield available
• 4-button user interface or remote configuration • Compatible with SITRANS LUT400 and ultrasonic controllers
• Compatible with SITRANS LT500
controller
Communications HART 7 Controller dependent
or outputs
Local HMI •
Continuous
measurement
• •
Alarming and
control
Extreme shock and
vibration
•

Technology selector | Controllers | Ultrasonics | Radar | Continuous contact | Point level | Hydrostatic | Level by weight | Remote monitoring and displays | Digitalization | Support

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 RADAR FOR LIQUIDS AND SLURRIES

Wide range of process

connections and antennas for
most materials
Liquid level measurement chal- Take the 80 GHz SITRANS LR100 series: these
transmitters operate far above most application
lenges are no match for Siemens’
requirements, easily handling whatever liquid or
complete range of radar transmit- slurry you’ve got. Zero blanking distance allows
ters. Whether it’s turbulent process you to measure right up to the sensor, avoiding
vessels, hazardous chemicals, or costly overfilling.

slurries with a tendency to build up, SITRANS LR250 is an excellent choice for liquid
our portfolio has the solution. level measurement in storage and process vessels
to 20 meters (66 ft). With its range of antennas,
this transmitter can handle whatever you need it
to. Its class-leading range of process connections
mean that hygienic applications are no problem
for this instrument.
siemens.com/radar
And for monitoring the level of sea or river water,
SITRANS LR560 can effectively provide accurate
measurements with its long range and narrow
beam.

Technology selector | Controllers | Ultrasonics | Radar | Continuous contact | Point level | Hydrostatic | Level by weight | Remote monitoring and displays | Digitalization | Support

12
 SITRANS LR100 series SITRANS LR250 SITRANS LR560
Universal applications with Bluetooth Process conditions in oil and gas, chemi- Sea and river level measurement
connectivity cal, or hygienic industries
Order No. 7ML530, 531, 532, 533, 534 7ML5431 PLA, 7ML5431 horn, 7ML5432, 7ML5440
7ML5433
80 GHz compact radar transmitters with 2-wire, 25 GHz pulse radar level 2-wire, 78 GHz FMCW radar level trans-
Bluetooth wireless technology. transmitter. mitter for continuous monitoring of solids
or liquids.
Versions SITRANS LR100 for basic measurement SITRANS LR250 PLA for process industries n/a
SITRANS LR110 with communication and SITRANS LR250 FEA for extreme corrosive
hazardous approvals options chemicals and high temperature
SITRANS LR120 with communication and SITRANS LR250 horn ideal for oil and gas,
optional submergence shield for flooding highest temperature rating
protection SITRANS LR250 HEA hygienic antenna
SITRANS LR140 for basic measurement and variety of process connections
SITRANS LR150 versatile version with
communication and hazardous approval
options and optional HMI
Range SITRANS LR100 to 8 m (26 ft) up to 20 m (66 ft) 40 m (131 ft)
SITRANS LR110 to 15 m (49 ft) 100 m (328 ft)
SITRANS LR120 to 30 m (98 ft)
SITRANS LR140 to 8 m (26 ft)
SITRANS LR150 to 15 m (49 ft)
Process -40 to 80 °C (-40 to 176 °F) -40 to 200 °C (-40 to 392 °F), process • -40 to 100 °C (-40 to 212 °F)
temperature connection dependent • -40 to 200 °C (-40 to 392 °F)
Process pressure -1 to 3 bar up to 40 bar g (580 psi g), process up to 3 bar g (43.5 psi g) option
connection dependent
Key features • Narrow beam for flexible installations • Process Intelligence – advanced echo • Process Intelligence – advanced echo
in existing vessel openings – or processing for reliable performance processing for reliable performance
non-intrusively through plastic vessels • Graphical HMI • Graphical Quick Start Wizard for easy
• Accuracy: 2 mm (0.08") • Quick Start Wizard and display and fast setup
• Optional submergence shield diagnostics • Stainless steel enclosure for near-shore
• Gas & dust Ex approval • 3-A, EHEDG corrosion resistance
• Antennas for aggressive conditions • Narrow 4-degree beam yields reliable
(acids, alkalis, and other corrosive measurement when installed close
chemicals) to wall
• SIL 2 for functional safety
Communications or • HART, Modbus RTU HART or PROFIBUS PA HART, PROFIBUS PA
outputs • Bluetooth 4.2 or higher
Extreme
temperature/ •
pressure
Extreme corrosion
resistance
•
Long range •
SITRANS LT500
SITRANS LR110/120
programmable
Bluetooth
connectivity
•

Technology selector | Controllers | Ultrasonics | Radar | Continuous contact | Point level | Hydrostatic | Level by weight | Remote monitoring and displays | Digitalization | Support

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 RADAR FOR SOLIDS

Narrow beam and high

frequency for reliable
measurement of solids.
Strong signals over long distances, SITRANS LR560 is the easiest-to-use solids radar-
transmitter on the market. With a suite of
reliable measurements unaffected
enhanced features including: 100 m range, high
by temperature change, and clear temperature capability, durable metal enclosure,
echo profiles in dusty environ- purging, flanging and aiming options, and process
ments—Siemens high-frequency connections to meet your basic to most chal-
lenging process needs.
80 GHz radar means application
troubles are a thing of the past. SITRANS LR100 series transmitters meet the needs
of general solids applications. Featuring a compact
size, shorter ranges, and Bluetooth and SITRANS
mobile IQ for easy installation and configuration.

siemens.com/radar

Technology selector | Controllers | Ultrasonics | Radar | Continuous contact | Point level | Hydrostatic | Level by weight | Remote monitoring and displays | Digitalization | Support

14
 SITRANS LR560 SITRANS LR110/120
First choice Basic applications
Order No. 7ML5440 7ML531, 7ML532
2-wire, 78 GHz FMCW radar level transmitter for continuous 80 GHz compact radar transmitters with Bluetooth wireless
monitoring of solids. technology.
Range • 40 m (131 ft) SITRANS LR110 to 15 m (49 ft)
• 100 m (328 ft) SITRANS LR120 to 30 m (98 ft)
Process • -40 to 100 °C (-40 to 212 °F) -40 to 80 °C (-40 to 176 °F)
temperature • -40 to 200 °C (-40 to 392 °F)
Process pressure up to 3 bar g (43.5 psi g) option -1 to 3 bar
Key features • Process Intelligence – advanced echo processing for reliable • Narrow beam for flexible installations
performance • Process connections: Thread 1"
• Graphical Quick Start Wizard for easy and fast setup • Accuracy: 2 mm (0.08")
• Push buttons or optional Intrinsically Safe infrared handheld • Beam angle: 4° (SITRANS LR120), 8° (SITRANS LR110)
programmer • Gas and dust Ex approval
• Narrow 4-degree beam yields reliable measurement when • Very fast response rate
installed close to wall
• Dust Ex approval
Communications HART, PROFIBUS PA • HART, Modbus RTU
or outputs • Bluetooth 4.2 or higher
Purging in chal-
lenging conditions
•
Standard process
flange connections
•
Local HMI •
Intrinsically safe
approval
•
Bluetooth
connectivity
•

Technology selector | Controllers | Ultrasonics | Radar | Continuous contact | Point level | Hydrostatic | Level by weight | Remote monitoring and displays | Digitalization | Support

15
 CONTINUOUS CONTACT LEVEL

Simple installation
for interface or level monitoring
that works
SITRANS LG guided wave radar Extreme process conditions don’t stand a chance,
and these transmitters feature SIL options for
transmitter is the solution for your
applications requiring functional safety. Advanced
easiest level or interface application diagnostics including trending, profiles, and event
to your most demanding—and logging give you the data you need at every step
everything in between. With simple, of your process. Rapid response times and superior
echo processing deliver accurate and reliable
reliable installation and little to no
readings over the full application range, even in
configuration, you’ll be operational small containers and in low dielectric constant
in minutes, saving you time and material. And with field-replaceable and adjust-
money. able probes, if your process changes, your
measurement device can too.

SITRANS LC300 is ideal for a range of liquids,

solids, and interface applications in the chemical,
hydrocarbon processing, and food and beverage
industries. Capacitance instruments use active-
shield technology to ensure true and accurate
level readings are recorded from the material
surface.
siemens.com/sitransLG

Technology selector | Controllers | Ultrasonics | Radar | Continuous contact | Point level | Hydrostatic | Level by weight | Remote monitoring and displays | Digitalization | Support

16
 SITRANS LG SITRANS LC300
Liquids, solids, hygienic and extreme conditions General liquids or solids
Order No. 7ML5880, 7ML5881, 7ML5882, 7ML5883 7ML5670-3
Guided wave radar transmitters for level, level/interface, and volume measure- Inverse frequency shift capacitance con-
ment of liquids and solids. tinuous level transmitter for liquids, solids
and Interface detection for harsh conditions
including buildup.
Versions SITRANS LG240 for hygienic applications n/a
SITRANS LG250 highly flexible solution for liquid level and interface applications
SITRANS LG260 for solids applications
SITRANS LG270 for extreme conditions including high temperature and high
pressure applications
Range • Insertion length 300 mm (11.8 inches) to 75 m (246 ft) • Rod: max. length 5.5 m (18 ft)
• Probe types include: cable, rod, and coaxial versions • Cable: max. length 25 m (82 ft)
Process temperature -196 to 450 °C (-321 to 842 °F) -40 to 200 °C (-40 to 392 °F)
Process pressure -1 to 400 bar / -100 to 4000 kPa -1 to 35 bar (-14.6 to 500 psig)
Key features • Ability to measure interface and level at the same time, digital and 2 current • Active-Shield technology
options available • Push-button calibration
• Advanced diagnostics including trending, event logging, multiple profile • Integrated local display
logging • Inverse frequency approach provides high
• Self monitoring to ensure reliable operation to international NE 107 standards resolution
• Automatic false echo suppression to ensure ongoing reliable measurements • Accuracy: < 0.5% of actual measurement
even with buildup value
• Functional Safety suitable (SIL 2/ redundant 3)
• Field replaceable and adjustable probes
• Remote display or remote electronics
• Accuracy up to ±2 mm (0.08")
• Real-time measurements for applications in steam boilers
• Safety rated for 72 hours of unattended operation
Communications • HART, PROFIBUS PA, Modbus RTU, and Foundation Fieldbus 4 to 20 mA
or outputs
High pressure/
temperature
•
Interface with
emulsion
•
Clean interface •
Bottom mount •
Short range •

Technology selector | Controllers | Ultrasonics | Radar | Continuous contact | Point level | Hydrostatic | Level by weight | Remote monitoring and displays | Digitalization | Support

17
 POINT LEVEL

A switch for every application

with options for remote testing
and extreme temperatures.

With options as simple or sophisti- Whether you’re looking for backup, high- or low-
level detection, interface, or dry run protection
cated as you need them to be,
– these switches will reduce your maintenance,
Siemens point level devices are downtime, and equipment replacement costs.
your answer.
Remote testing? Not a problem. A range of
Siemens point level instruments now feature
convenient remote testing via single or
siemens.com/pointlevel two-channel remote test signal conditioners or
your control system.

Product buildup? Rotary point level devices

specialize in low bulk density applications,
ensuring accurate readings even in dusty, turbu-
lent, and vaporous environments. And because
even a small level change creates a large and
detectable change in frequency, Siemens capaci-
tance switches provide excellent resolution while
consistently demonstrating immunity to buildup.

Need functional safety in your application?

Siemens offers the world’s first rotary paddle
switch with SIL options in addition to a series of
SIL instruments in all our point level lines.

Whatever your requirements – digital communica-

tion support for advanced monitoring, ease of
configuration and integration – Siemens has a
switch solution.

Technology selector | Controllers | Ultrasonics | Radar | Continuous contact | Point level | Hydrostatic | Level by weight | Remote monitoring and displays | Digitalization | Support

18
 Pointek CLS200/300 and
SITRANS LVS100/200/300 SITRANS LVL100/200 SITRANS LPS200 SITRANS LCS050/100
Dry powder solids Non-sticky liquids and slurries Extreme temperatures Solids, liquids and interface
and buildup point level detection
Order No. 7ML5735, 7ML5731-4, 7ML5745, 7ML5746, 7ML5747, 7ML5725-8, 7ML5730 7ML700-3, 7ML5630-3,
7ML5736-8 7ML5748 7ML5640-3, 7ML5650-2,
7ML5660-2, 7ML5772
Vibrating point level switches Compact vibrating point level Rotary paddle switch for point RF capacitance switch for point
for dry powder, fine grain, switch for liquid and slurry and level detection of powder and level detection in interfaces,
and granular bulk solids with pump protection. Ideal for use in granular solids with bulk densi- solids, liquids, slurries, and foam
densities from 5 to 30 g/l confined spaces. ties as low as 15 g/l (0.94 lb/ft3). and demanding conditions.
(0.3 to 1.9 lb/ft3).
Versions SITRANS LVS100 for dry powder SITRANS LVL100 compact Standard for side or top mount SITRANS LCS050 ultra-compact
SITRANS LVS200 for dry powder SITRANS LVL200 for applica- Cable extended top mount liquids detection with IO-link
with very low density tions with higher pressure/ Shaft protection for side SITRANS LCS100 versatile liquids
SITRANS LVS300 for bulk solids temperature Ex approvals mounting with buildup and solids detection with IO-link
and aggressive applications Angled shaft for aggressive side Pointek CLS200 liquids and sol-
mount applications ids detection with digital display
and PROFIBUS
Pointek CLS300 liquids and sol-
ids detection in harsh demand-
ing applications
Range Insertion length: Insertion length: Insertion length: Compact version starts at
170 mm to 20 m (6.7" to 65 ft) 40 mm to 4000 mm 100 mm to 10 m (4" to 30 ft) 12 mm (0.47")
(1.5" to 13 ft) Rod: 50 mm to 5.5 m
(14" to 18 ft)
Cable: 1 to 30 m (3 to 98 ft)
Process -40 to 150 °C -196 to 450 °C -25 to 600 °C -40 to 400 °C (-40 to 752 °F)
temperature (-40 to 302 °F) (-321 to 842 °F) (-13 to 1112 °F) high temperature version
Process Up to 10 bar g (145 psi g) -1 to 160 bar/-100 to 16000 kPa Up to 0.5 bar g (7.25 psi g) Up to 35 bar g (511 psi g)
pressure Pressure to 30 bar options (-14.5 to 2320 psi g) Optional up to 10 bar g
available (145 psi g)
Key features • Replaceable electronics • Test function including • Optional hinged vane • Adjustable sensitivity to
• Interface model for solids in remote options • 5 seal ingress protection handle buildup or non contact
liquids • Fault monitoring for corrosion, • Motor switches off during material detection
• Best-in-industry lowest density loss of vibration, or line break alarm for long service life • SensGuard for abrasives
measurement to the piezo drive • Friction clutch design prevents • Display with local button
• Unaffected by external • ½" process connections impact damage configuration
vibrations • SIL 2 and hygienic options • Rotation failure monitoring • Active-shield for increased sen-
• Remote buildup monitoring • Options for extreme pressures • SIL 2 options sitivity and buildup protection
and temperatures • SIL 2 options

Comms. N/A N/A N/A PROFIBUS PA, IO-Link

Buildup • •
Interface • •
Granular size
> 20 mm
• • •
Very low bulk
density
•
Remote
testing
• •

Technology selector | Controllers | Ultrasonics | Radar | Continuous contact | Point level | Hydrostatic | Level by weight | Remote monitoring and displays | Digitalization | Support

19
 HYDROSTATIC

Level measurement in chemical

and petrochemical industries

Hydrostatic level measurement with These instruments can handle extreme chemical
and mechanical loads as well as electromagnetic
Siemens gauge, absolute, and
interference. They are widely applied in chemical
differential pressure transmitters and petrochemical industries.
is a low cost option for direct
mounting or mounting with remote
seals on tanks and vessels.

siemens.com/hydrostatic

Technology selector | Controllers | Ultrasonics | Radar | Continuous contact | Point level | Hydrostatic | Level by weight | Remote monitoring and displays | Digitalization | Support

20
 SITRANS LH100

SITRANS LH300
SITRANS P320/420

SITRANS LH100 SITRANS LH300 SITRANS P320/420

Submersible sensor Submersible sensor Advanced
Order No. 7MF1570 7MF1575 7MF036, 7MF046
Hydrostatic level transmitter for direct Hydrostatic level transmitter for direct Hydrostatic level transmitter for mounting
mounting in tanks and vessels. mounting in tanks and vessels with remote seal on open or closed
vessels with corrosive or non-corrosive
liquids.
Range 3 m to 20 m H2O (9 ft to 60 ft H2O) 1 m to 40 m H2O (3 ft to 120 ft H2O) 50m (167ft) H2O
Process -10 to 80 °C (14 to 176 °F) -10 to +80 °C (14 to 176 °F) -40 to 100 °C (-40 to 212 °F)
temperature
Process pressure N/A N/A depending on process connection
Key features • Applicable to harsh environmental • Compact stainless steel transmitter with • With remote seals up to 400 °C (752 °F)
conditions due to the piezoresistive Al2O3 ceramics sensor • Self-diagnostic elements for parameter-
ceramic sensor • Sensor purity 99.6% ization
• Compact stainless steel enclosure and • Easy installation • Intrinsically Safe
sensor • Special measuring ranges: • Explosion proof and flame proof
• Easy installation • 0 to1 mH20 to 0 to160 mH20 • SIL 2/3 approved
• Intrinsically Safe • Cable length up to 1000 m (3300 ft) • Corrosion-resistant diaphragm and
• Special measuring ranges: process connections
0 to 3 mH20 to 0 to 30 mH20 • Range of different process connections
• Cable length up to 100 m (328 ft)
Communications or N/A 4 to 20 mA 4-20 mA, HART, PROFIBUS PA
outputs
Local display •
SIL •
Ceramic
membrane
•

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 LEVEL BY WEIGHT

Gravimetric technology provides

non-intrusive
mass measurement
With SIWAREX weighing electronics Automate all of your scales with SIWAREX
weighing modules. Part of Siemens Totally
and load cells, not only are you
Integrated Automation (TIA), SIWAREX modules
choosing the highest quality in can be integrated into SIMATIC and expanded as
construction, long-lasting perfor- required to meet your individual requirements.
mance, and easy integration into SIWAREX DB – your connection to the
your weighing systems, you are also digital world
opening the doors to Siemens’ Analogue limitations are left behind with SIWAREX
DB. Instead of doing a parallel connection of the
comprehensive spectrum of instru-
analog load cells and having no information about
mentation. the single load cell, digitalization of each load cell
siemens.com/weighingmodules offers full transparency.

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22
 SIWAREX WT231 SIWAREX WP231 SIWAREX WP321

SIWAREX WT231 SIWAREX WP231 SIWAREX WP321 SIWAREX WP52x ST

Stand-alone Stand-alone and ET 200SP integrated S7-1500 integrated
S7-1200 integrated
Order No. 7MH4965-2AA01 7MH4960-2AA01 7MH4138-6AA00-0BA0 7MH4980-[1;2]AA01
Typical Weighing terminal for platform Fast weighing and force mea- Technology module for the Technology modules for the
applications scales, silo and bunker weigh- surement for non-automatic distributed I/O system SIMATIC SIMATIC S7-1500 advanced
ing, scales in hazardous areas, scale applications like fill level ET 200SP. Suitable for fast and controller family. Optimally
force measurement. monitoring of silos, hopper accurate non-automatic scales prepared for gravimetric level
scales, platform and crane in level measurement in silos measurement of silos and
scales within SIMATIC S7- and bunkers and platform hoppers as well as for platform
1200 systems or stand-alone scales. scales
operation.
Automation • RS485 (Modbus RTU) • SIMATIC S7-1200 • SIMATIC S7-400 S7-1500 (directly via SIMATIC
system integration • 0/4-20mA (directly via SIMATIC bus) • SIMATIC S7-300 bus)
• Four digital outputs • Operator panel • SIMATIC S7-1200
• Four digital inputs • Automation systems from • SIMATIC S7-1500 via SIMATIC
other manufacturers, via ET 200SP distributed IO
Ethernet (Modbus TCP/IP) or
RS-485 (Modbus RTU)
Accuracy 0.05% 0.05% 0.05% 0.05%
SIMATIC PCS7 – – Via SIMATIC PCS7 add-on –
integration software package including
faceplate and function block

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23
 LEVEL BY WEIGHT

Diverse types and graded

load classes offer a solution for
a range of applications
SIWAREX load cells have high preci- SIWAREX load cells are ideal in almost any indus-
trial sector – food-processing, steel-making, chem-
sion and repeatability of weighing
ical and pharmaceutical, to name a few. With the
and batching processes. They are diverse construc­tion types and comprehensive,
designed for a range of applica- graded load classes ranging from 300 grams to
tions, especially when accuracy is a 500 tons (6.6 pounds to 551 short tons), you are
sure to find the right load cell for your application.
must. With Siemens, you can source
both your load cells and electronics.
Choose from our extensive, perfor-
mance-graded line of weighing
systems – with everything you need
for the whole range of tasks in your
industry.

siemens.com/loadcells

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24
 SIWAREX WL260

SIWAREX WL230

SIWAREX WL270

SIWAREX WL230
SIWAREX WL250

SIWAREX SIWAREX SIWAREX SIWAREX SIWAREX SIWAREX SIWAREX SIWAREX

WL230 WL230 WL250 WL260 WL270 WL270 K WL280 RN WL290
Type Shear beam Bending beam S-Type Single point Compression Compression Ring-torsion Double shear
beam
Order No. 7MH5107, 21 7MH5106 7MH5105 7MH5118 7MH5108, 10 7MH5114 7MH5113 7MH5122
Typical Container, Small scale Tank weigh- Small to me- Containers, Vehicle scales, Container, Platform
applications overhead rail containers ing, hybrid dium platform hoppers, and overhead conveyor, plat- scales,
conveyor, and platform scales, or scales and vehicle scales rail scales, form and roller hoppers and
and platform scales suspended weighing container table scales vehicle scales
scales container machines, weighers
weighing conveyor small
scales
Nominal load 0.1 to 5 t 10 to 500 kg 50 kg to 10 t 10 to 500 kg 10 to 100 t 2.8 to 500 t 60 kg to 60 t 2.3 to 113 t
(Emax) (0.55 to 5.5 (22 to (110 lbs to (22 to 1102 lbs) (11 to 220 (3 to 551 (132 lbs to (2 to 111 tn. L)
short tons) 1102 lbs) 11 short tons) short tons) short tons) 66 short tons)
Accuracy class C3, C4, C5 C3 to OIML C3 to OIML C3 to OIML C3 to OIML 0.1% C3 to OIML C3 to OIML
and max. scale 3,000...5,000 R60; 3,000 R60; 3,000 R60; 3,000 R60; 3,000 R60; 3,000 R60
intervals intervals intervals intervals intervals intervals
Degree of IP68/67 IP68 IP67 IP68/IP69K IP68 IP68 IP66/IP68 IP67
protection

SIWAREX DB makes the digitalization of the proven, most common and cost-effective
strain gauge technology possible. For direct connection to a SIMATIC S7 or PCS 7 PLC
the SIWAREX WP weighing electronics are ideal.

Seamless communication between SIWAREX and SIMATIC ensures less time and effort
during commissioning. During operation the single channel monitoring, allowing wire
break, impedance, and the current utilization of each load cell to be detected and
SIWAREX DB corrected in the event of an error.
Order No. 7MH5001-0AD20
7MH5001-0AD01 SIWAREX DB supplies diagnostics data that are fully integrated in the SIMATIC environ-
ment. Error messages are displayed centrally on the SIMATIC controller and the HMI.

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25
 REMOTE MONITORING AND DISPLAYS

Share critical information and

provide control where it is
needed
Ideal for remote monitoring applica- SITRANS RD100, SITRANS RD150, SITRANS RD200,
and SITRANS RD300 remote displays bring you the
tions including inventory levels,
flexibility of seeing instrumentation readings in a
regulatory monitoring, remote convenient location for your operators.
maintenance alarming, or process
Our family of displays offer options for integrated
and environmental monitoring, pump control, totalizing, dual input, remote
SITRANS RTU3000C family remote communication and monitoring via HART or
data manager helps you stay Modbus and remote configuration of connected
sensors. Siemens’ selection of displays gives you
connected and informed.
an inexpensive view into your processes.

And the compact SIMATIC RTU3000C remote

terminal units are energy-self-sufficient,
siemens.com/SupplementaryComponents low-power devices with flexible power supplies.
Easily configured, they operate reliably even under
harsh conditions and in areas prone to flooding.

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26
 SIMATIC RTU3000C
SITRANS RD100 SITRANS RD150 SITRANS RD200 SITRANS RD300 family
Loop powered Loop with HART Universal Full featured Remote sites
Order No. 7ML5741 7ML5742 7ML5740 7ML5744 6NH3112-4BB00-0XX0
2-wire loop-powered 2-wire 4 to 20 mA loop Universal input, panel Dual-line, panel mount, Compact remote moni-
enclosed remote digital remote display with mount, remote digital remote digital display toring and control unit.
display for process HART suitable for display for process for process instrumen- Battery, solar or mains
instrumentation. monitoring connected instrumentation. tation. supply. Sensor inputs.
sensors‘ primary HART Internal web-page for
variables. configuration and
monitoring. Integrated
modem.
Input types 4 to 20 mA 4 to 20 mA and HART Universal current, volt- 4 to 20 mA, 0 to 10 V DC • 8 DI
age, RTD, thermocouple • 4 4-20mA
• HART/Modbus
expansion available
Digits 3.5 digit display 5 digits 4 digit display Dual-line 6 digit display Internal web page
Key features • 2-wire loop-powered • Remote display with • Easy to read in all • Easy to read, dual-line • Battery or solar-
• Two-step configura- sensor configuration conditions display operated
tion via HART • Temperature and • 32-point lineariza- • 10.8V to 28.8V DC
• Intrinsically Safe, non- • Monitor extended data process meter tion and square root • LTE-M/NB-IoT
incendive via HART • Software supports function • Internal GPS
• Serviceability without • Flexible field and pan- monitoring and • Nine digit totalizer • Text message, email
loop interruption el mount options configuration • Flexible outputs with and datalogging
• Factory calibrated • Menu driven backlit • Alarm indication and up to eight relays • FTP client
display process control and eight digital I/O • Ethernet port
• Plastic, aluminum • Provides power to for process control • 4 Digital outputs
and stainless housing instrument alarming • Local control
options • Modbus RTU output • Modbus RTU output functions
• Multi-pump alterna- • IP20 rating
tion control
• Software supports
monitoring and con-
figuration
Operating -40 to 85 °C • Without display and -40 to 65 °C -40 to 65 °C Vertical: -40 to 60 °C
temperature (-40 to 185 °F) adjustment module (-40 to 149 °F) (-40 to 149 °F) (-40 to 140 °F)
-40 to 80 °C Horizontal: -40 to 70 °C
(-40 to 176 °F) (-4 to 158 °F)
• With display and
adjustment module
-20 to 70 °C
(-4 to 158 °F)
HART • optional
Modbus • • optional
Pump control • • •
Loop
powered
• •
Graphic web page
display
•
Remote
comms.
•

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27
 GO THE DISTANCE WITH DIGITALIZATION

Introduce easy-to-use apps into

your operations and harness
new opportunities
SITRANS Library provides visualized device func-
Put your plant’s data to work tions to help in both the engineering phase and
and see your operations open with process control. The measurement range on
the transmitter and in the control system can be
up before you with intuitive synchronized with one click, ensuring consistency
digital solutions from Siemens. between the field device and DCS system, higher
reliability, and transparency.
Combined with our digitalization-ready instru- With the ability to connect your products, instru-
ments, SITRANS IQ apps bring usable device data ments, systems, and machines, only a complete
directly to operators’ smartphones or tablets, automation and instrumentation supplier like
giving your staff the ability to examine trends, Siemens puts the information your operators need
analyze performance, and even commission directly in their hands. With new customer-driven
devices. apps coming to market from our world-class R&D
teams, the possibilities truly are endless.

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28
SITRANS SCM IQ COMOS
Monitors the condition of your plant’s mechanical compo- The engineering tool from Siemens for the entire lifecycle of
nents and detects imminent equipment failures empowered your plant. With the direct integration of our PIA Lifecycle
by SITRANS multisensors. Portal, we guarantee the seamless integration of our field
devices in the engineering environment. We can offer field
SITRANS store IQ
devices best suited to your processes, properties, and
Easily implement cloud-based real-time monitoring and lay
measuring requirements.
the foundation for effective inventory management.
SIMATIC Process Device Management (PDM)
SITRANS mobile IQ
One of the most widely used tools for access of a device’s
Via a Bluetooth connection, supported field devices in the
parameters, diagnostic and maintenance information. More
environment can be easily and quickly commissioned, param-
than 4,500 devices from more than 200 different manufac-
eterized and monitored.
turers can be commissioned, parametrized, or serviced using
Free download: www.siemens.com/siossitransmobileiq a single program with a uniform user interface.

PIA Life Cycle Portal SITRANS Library

This portal helps you select, size and configure your ideal Optimize your process – SITRANS Library function blocks and
piece of instrumentation. The portal interfaces with COMOS faceplates for SITRANS field devices enhance SIMATIC auto-
and exports to Siemens Industry Mall. You are able to track mation and TIA Portal systems experience. They are an easy
the lifecycle of your instrument, see warranty and extended and effective interface between your field devices and oper-
exchange option information as well additional information ating system.
such as factory certificates (e.g., for calibration or valida-
tion).

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29
 Sales and
Custom engineering
Siemens provides custom-engineered products to solve your
special application needs. From material compatibility chal-

support lenges to unique size requirements, Siemens custom engi-

neering team can help.

Service around the world

Plants must function reliably at all times. Efficient and effec-
tive process instrumentation and analytics are an indispens-
able requirement to this end. You also need to be certain of
fast and competent service from your supplier. Siemens is a
global company that reacts locally. Whether you require
consulting, quick delivery, or installation of new devices, the
Siemens network of specialists is available to you around the
world, wherever your location.

Service around the clock

Our online support system offers rapid, comprehensive
assistance regardless of time or location. From product
support to service information, Siemens Industry online
support is your first choice – around the clock, 365 days
a year.

siemens.com/service&support

Maximize your PI training

The PI Introductory Training courses are designed for new
skills with sales and service employees to learn the product lines, the

factory-certified technologies, and the applications. These courses are also

prerequisites for the advanced technology courses which
training provide in-depth application training.

Designed for hands-on learning, all courses are led by field-

tested instructors who combine extensive application and
Siemens provides a full instrumentation knowledge with seasoned training experi-

schedule of Process ence. Our PI Training Center is specifically designed to opti-

mize your classroom time. It is fully equipped with applica-
Instrumentation training tion simulation stations, a full range of PI instruments, and
opportunities for Siemens complete industrial communication networks.
employees, channel For current information and schedules, visit our website at:
partners, and customers.
siemens.com/pi-training

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30
 TOTALLY INTEGRATED AUTOMATION.

End-to-end integration
from controller level to
field level
With Totally Integrated Automation (TIA), Siemens is the only provider of
an end-to-end integrated portfolio of products and systems for the auto-
mation of the entire production workflow. From
the goods receiving area to the finished goods warehouse.

Totally Integrated Automation reduces the complexity of the automation

solution and enables what really counts: the practical combination
of optimally coordinated individual components without interface
problems.

Totally Integrated Automation integrates not only the production

process but all parts of the company from the field level to the manage-
ment level. The result: a perfectly coordinated overall concept that
delivers higher productivity.

Communication flexibility
Siemens TIA approach offers ease of connection to a DCS system such as
SIMATIC PCS 7 using industrial standards. Siemens provides communica-
tion flexibility, supporting:

SIMATIC PDM

PROFIBUS

HART

FOUNDATION Fieldbus

Model 375/475 HART field communicator and Emerson AMS

SmartLinx (cards are available for PROFIBUS DP, Modbus RTU,

and DeviceNet)

FDT Software via SITRANS DTM

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31
Published by Subject to changes and errors. The information
Siemens AG provided in this brochure contains descriptions or
Digital Industries performance characteristics which, in case of actual
Process Automation use, do not always apply as described or which may
Östliche Rheinbrückenstr. 50 change as a result of further development of the
76187 Karlsruhe, Germany products. The desired performance characteristics
are only binding if expressly agreed in the contract.
For the U.S. published by Availability and technical specifications are subject
Siemens Industry Inc. to change without notice.
100 Technology Drive All product designations may be trademarks or
Alpharetta, GA 30005 product names of Siemens AG or supplier compa-
United States nies, the use of which by third parties for their own
Article No.: DIPA-B90029-00-7600 purposes may violate the rights of the owners.
Dispo 27900
WS 07226.0
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© Siemens 2023

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