Siemens SITRANS L LCS100 User manual

SITRANS LCS100 2-wire mA and Relay Version
SITRANS L
Capacitance switches
SITRANS LCS100 2
-wire mA and
Relay Version
Operating Instructions
7ML700/7ML701 (compact enclosure)
7ML702 (rod version)
7ML703 (cable version)
05/2023
A5E52142831
-AA
Introduction
1
Safety notes
2
Description
3
Installing/mounting
4
Connecting
5
Operating
6
Service and maintenance
7
Diagnostics and
troubleshooting
8
Technical specifications
9
Dimension drawings
10
Options and accessories
11
Product documentation and
support
A

Siemens AG
Digital Industries
Postfach 48 48
90026 NÜRNBERG
GERMANY
Document order number: A5E52142831
Ⓟ
05/2023 Subject to change
Copyright © Siemens AG 2023.
All rights reserved
Legal information
Warning notice system
This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent
damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert
symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are
graded according to the degree of danger.
DANGER
indicates that death or severe personal injury will result if proper precautions are not taken.
WARNING
indicates that death or severe personal injury may result if proper precautions are not taken.
CAUTION
indicates that minor personal injury can result if proper precautions are not taken.
NOTICE
indicates that property damage can result if proper precautions are not taken.
If more than one degree of danger is present, the warning notice representing the highest degree of danger will
be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to
property damage.
Qualified Personnel
The product/system described in this documentation may be operated only by personnel qualified for the specific
task in accordance with the relevant documentation, in particular its warning notices and safety instructions.
Qualified personnel are those who, based on their training and experience, are capable of identifying risks and
avoiding potential hazards when working with these products/systems.
Proper use of Siemens products
Note the following:
WARNING
Siemens products may only be used for the applications described in the catalog and in the relevant technical
documentation. If products and components from other manufacturers are used, these must be recommended
or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and
maintenance are required to ensure that the products operate safely and without any problems. The permissible
ambient conditions must be complied with. The information in the relevant documentation must be observed.
Trademarks
All names identified by ® are registered trademarks of Siemens AG. The remaining trademarks in this publication
may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.
Disclaimer of Liability
We have reviewed the contents of this publication to ensure consistency with the hardware and software
described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the
information in this publication is reviewed regularly and any necessary corrections are included in subsequent
editions.

SITRANS LCS100 2-wire mA and Relay Version
Operating Instructions, 05/2023, A5E52142831-AA 3
Table of contents
1 Introduction ........................................................................................................................................... 6
1.1 Purpose of this documentation ............................................................................................ 6
1.2 Designated use.................................................................................................................... 6
1.3 Checking the consignment................................................................................................... 6
1.4 Security information ............................................................................................................ 6
1.5 Transportation and storage.................................................................................................. 7
1.6 Notes on warranty ............................................................................................................... 8
2 Safety notes........................................................................................................................................... 9
2.1 Safety notes......................................................................................................................... 9
2.2 Safety marking symbols ....................................................................................................... 9
2.3 Preconditions for use ......................................................................................................... 10
2.3.1 Improper device modifications ........................................................................................... 10
2.4 Requirements for special applications................................................................................. 10
2.5 Use in hazardous areas ...................................................................................................... 11
3 Description........................................................................................................................................... 12
3.1 Measurement principle ...................................................................................................... 12
3.2 Application ........................................................................................................................ 12
3.3 Features ............................................................................................................................ 12
4 Installing/mounting ............................................................................................................................. 14
4.1 Basic safety notes .............................................................................................................. 14
4.1.1 Proper mounting ............................................................................................................... 14
4.1.1.1 Process pressure ................................................................................................................ 14
4.1.1.2 Chemical resistance against the medium............................................................................ 14
4.1.1.3 Fastening of the threaded process connection.................................................................... 14
4.1.1.4 EHEDG approval/Food grade material................................................................................. 14
4.2 Mounting .......................................................................................................................... 15
4.3 Liquids applications ........................................................................................................... 16
4.3.1 LCS100 compact version.................................................................................................... 16
4.3.2 LCS100 rod version............................................................................................................ 17
4.3.3 LCS100 cable version ......................................................................................................... 18
4.3.4 Probe mounting distances - liquids..................................................................................... 19
4.4 Solids applications ............................................................................................................. 20
4.4.1 LCS100 compact version.................................................................................................... 20
4.4.2 LCS100 rod version............................................................................................................ 21
4.4.3 LCS100 cable version ......................................................................................................... 22
4.4.4 Probe mounting distances - solids ...................................................................................... 23

Table of contents
SITRANS LCS100 2-wire mA and Relay Version
4Operating Instructions, 05/2023, A5E52142831-AA
5 Connecting .......................................................................................................................................... 24
5.1 Handling ........................................................................................................................... 24
5.2 Installation regulations ...................................................................................................... 24
5.3 Power supply switch .......................................................................................................... 24
5.4 Wiring diagram.................................................................................................................. 24
5.5 Supply voltage................................................................................................................... 24
5.6 Cable gland and field wiring cables .................................................................................... 25
5.7 M12 mating plug and field wiring cables............................................................................ 25
5.8 Relay protection................................................................................................................. 25
5.9 Protection against static charging ...................................................................................... 25
5.10 Functional earthing ........................................................................................................... 26
5.11 Standard version (General Purpose) ................................................................................... 27
5.12 Cable shield....................................................................................................................... 28
5.13 Intrinsically safe version..................................................................................................... 29
5.14 Cable shield....................................................................................................................... 30
5.15 Output logic ...................................................................................................................... 30
5.16 Hazardous area installations............................................................................................... 31
5.16.1 Use of Operating Instructions............................................................................................. 31
5.16.2 General notes .................................................................................................................... 31
5.16.3 Qualification of personnel / Service / Repair ........................................................................ 31
5.16.4 Certificates / List of standards............................................................................................. 32
5.16.5 Year of manufacturing ....................................................................................................... 32
5.16.6 Permitted zones for installation.......................................................................................... 33
5.16.7 Warnings for installation.................................................................................................... 33
5.16.8 Specific conditions of use................................................................................................... 34
5.16.9 Ambient and process temperature range, max. surface temperature and temperature
class .................................................................................................................................. 36
5.16.10 FM/CSA Approval - Control drawing.................................................................................... 37
6 Operating............................................................................................................................................. 39
6.1 Operating elements (LEDs) ................................................................................................ 39
6.2 Factory calibration ............................................................................................................. 40
6.3 Recalibration ..................................................................................................................... 42
6.4 Advanced calibration ......................................................................................................... 43
6.5 Advanced Calibration - Measurement through non-metal vessel wall.................................. 46
6.6 Advanced possibilities........................................................................................................ 48
6.7 WHG Proof Test ................................................................................................................. 51
7 Service and maintenance .................................................................................................................... 54
7.1 Basic safety notes .............................................................................................................. 54
7.1.1 Maintenance ..................................................................................................................... 54

Table of contents
SITRANS LCS100 2-wire mA and Relay Version
Operating Instructions, 05/2023, A5E52142831-AA 5
7.2 Maintenance and repair work............................................................................................. 54
7.2.1 Opening the lid (cover) ...................................................................................................... 54
7.2.2 Frequent check of the unit ................................................................................................. 55
7.2.3 Cleaning............................................................................................................................ 55
7.2.4 Max. temperature for CIP ................................................................................................... 55
7.2.5 Function test ..................................................................................................................... 56
7.2.6 Production date ................................................................................................................. 56
7.2.7 Impermissible repair and maintenance of the device .......................................................... 56
7.2.8 Spare parts ........................................................................................................................ 56
7.3 Ordering of spare parts ...................................................................................................... 57
7.4 Transport........................................................................................................................... 57
7.4.1 Storage.............................................................................................................................. 58
7.5 Return procedure............................................................................................................... 58
7.6 Disposal............................................................................................................................. 58
8 Diagnostics and troubleshooting ........................................................................................................ 59
8.1 Troubleshooting ................................................................................................................ 59
8.2 Diagnostics/Remote function test ....................................................................................... 60
9 Technical specifications....................................................................................................................... 61
9.1 Specifications .................................................................................................................... 61
9.2 Power................................................................................................................................ 62
9.3 Performance ...................................................................................................................... 63
9.4 Mechanical ........................................................................................................................ 63
9.5 Environmental ................................................................................................................... 66
9.6 Process .............................................................................................................................. 67
9.7 Approvals .......................................................................................................................... 68
10 Dimension drawings ............................................................................................................................ 69
10.1 Short extension length....................................................................................................... 69
10.2 Pipe extension and cable extension.................................................................................... 72
10.3 Tri-clamp and flange .......................................................................................................... 73
10.4 G 1/2" hygienic process connection/EHEDG approval .......................................................... 75
11 Options and accessories ...................................................................................................................... 77
A Product documentation and support................................................................................................... 79
A.1 Product documentation ..................................................................................................... 79
A.2 Technical support .............................................................................................................. 80
Index .................................................................................................................................................... 81

SITRANS LCS100 2-wire mA and Relay Version
6Operating Instructions, 05/2023, A5E52142831-AA
Introduction
1
1.1 Purpose of this documentation
These instructions contain all information required to commission and use the device. Read
the instructions carefully prior to installation and commissioning. In order to use the device
correctly, first review its principle of operation.
The instructions are aimed at persons mechanically installing, connecting and commissioning
the device, as well as service and maintenance engineers.
1.2 Designated use
Use the device in accordance with the information on the nameplate and in the Technical
specifications (Page 61).
1.3 Checking the consignment
1. Check the packaging and the delivered items for visible damages.
2. Report any claims for damages immediately to the shipping company.
3. Retain damaged parts for clarification.
4. Check the scope of delivery by comparing your order to the shipping documents for
correctness and completeness.
WARNING
Using a damaged or incomplete device
Risk of explosion in hazardous areas.
•Do not use damaged or incomplete devices.
1.4 Security information
Siemens provides products and solutions with industrial security functions that support the
secure operation of plants, systems, machines and networks.
In order to protect plants, systems, machines and networks against cyber threats, it is
necessary to implement – and continuously maintain – a holistic, state-of-the-art industrial
security concept. Siemens’ products and solutions constitute one element of such a concept.
Customers are responsible for preventing unauthorized access to their plants, systems,
machines and networks. Such systems, machines and components should only be connected
to an enterprise network or the internet if and to the extent such a connection is necessary
and only when appropriate security measures (e.g. firewalls and/or network segmentation)
are in place.

Introduction
1.5 Transportation and storage
SITRANS LCS100 2-wire mA and Relay Version
Operating Instructions, 05/2023, A5E52142831-AA 7
For additional information on industrial security measures that may be implemented, please
visit
https://www.siemens.com/industrialsecurity.
Siemens’ products and solutions undergo continuous development to make them more
secure. Siemens strongly recommends that product updates are applied as soon as they are
available and that the latest product versions are used. Use of product versions that are no
longer supported, and failure to apply the latest updates may increase customer’s exposure to
cyber threats.
To stay informed about product updates, subscribe to the Siemens Industrial Security RSS
Feed under
https://www.siemens.com/cert.
NOTICE
Unauthorized product information or software
Use only authorized Siemens websites when accessing any product information or software,
including firmware updates, device integration files (EDD, for example), as well as other
product documentation. Using unauthorized product information or software could result in
a security incident, such as breach of confidentiality, or loss of integrity and availability of
the system.
For more information, see Product documentation and support (Page 79).
1.5 Transportation and storage
To guarantee sufficient protection during transport and storage, observe the following:
•Keep the original packaging for subsequent transportation.
•Devices/replacement parts should be returned in their original packaging.
•If the original packaging is no longer available, ensure that all shipments are properly
packaged to provide sufficient protection during transport. Siemens cannot assume
liability for any costs associated with transportation damages.
NOTICE
Insufficient protection during storage
The packaging only provides limited protection against moisture and infiltration.
•Provide additional packaging as necessary.
Special conditions for storage and transportation of the device are listed in Technical
specifications (Page 61).

Introduction
1.6 Notes on warranty
SITRANS LCS100 2-wire mA and Relay Version
8Operating Instructions, 05/2023, A5E52142831-AA
1.6 Notes on warranty
The contents of this manual shall not become part of or modify any prior or existing
agreement, commitment or legal relationship. The sales contract contains all obligations on
the part of Siemens as well as the complete and solely applicable warranty conditions. Any
statements regarding device versions described in the manual do not create new warranties
or modify the existing warranty.
The content reflects the technical status at the time of publishing. Siemens reserves the right
to make technical changes in the course of further development.

SITRANS LCS100 2-wire mA and Relay Version
Operating Instructions, 05/2023, A5E52142831-AA 9
Safety notes
2
2.1 Safety notes
Special attention must be paid to warnings and notes highlighted from the rest of the text by
grey boxes.
WARNING
Relates to a caution symbol on the product, and means that failure to observe the necessary
precautions can result in death, serious injury, and/or considerable material damage.
WARNING
Means that failure to observe the necessary precautions can result in death, serious injury,
and/or considerable material damage.
CAUTION
Means that failure to observe the necessary precautions can result in considerable material
damage.
Note
Means important information about the product or that part of the operating manual.
2.2 Safety marking symbols
In manual
On Product
Description
Caution: refer to accompanying
documents (manual) for details.
Earth (ground) Terminal
Protective Conductor Terminal

Safety notes
2.3 Preconditions for use
SITRANS LCS100 2-wire mA and Relay Version
10 Operating Instructions, 05/2023, A5E52142831-AA
2.3 Preconditions for use
This device left the factory in good working condition. In order to maintain this status and to
ensure safe operation of the device, observe these instructions and all the specifications
relevant to safety.
Observe the information and symbols on the device. Do not remove any information or
symbols from the device. Always keep the information and symbols in a completely legible
state.
2.3.1 Improper device modifications
WARNING
Improper device modifications
Risk to personnel, system, and environment can result from modifications to the device,
particularly in hazardous areas.
•Only carry out modifications that are described in the instructions for the device. Failure
to observe this requirement cancels the manufacturer's warranty and the product
approvals. Do not operate the device after unauthorized modifications.
2.4 Requirements for special applications
Due to the large number of possible applications, each detail of the described device versions
for each possible scenario during commissioning, operation, maintenance or operation in
systems cannot be considered in the instructions. If you need additional information not
covered by these instructions, contact your local Siemens office or company representative.
Note
Operation under special ambient conditions
We highly recommend that you contact your Siemens representative or our application
department before you operate the device under special ambient conditions as can be
encountered in nuclear power plants or when t
he device is used for research and
development purposes.

Safety notes
2.5 Use in hazardous areas
SITRANS LCS100 2-wire mA and Relay Version
Operating Instructions, 05/2023, A5E52142831-AA 11
2.5 Use in hazardous areas
Qualified personnel for hazardous area applications
Persons who install, connect, commission, operate, and service the device in a hazardous
area must have the following specific qualifications:
•They are authorized, trained or instructed in operating and maintaining devices and
systems according to the safety regulations for electrical circuits, high pressures,
aggressive, and hazardous media.
•They are authorized, trained, or instructed in carrying out work on electrical circuits for
hazardous systems.
•They are trained or instructed in maintenance and use of appropriate safety equipment
according to the pertinent safety regulations.
WARNING
Use in hazardous area
Risk of explosion.
•Only use equipment that is approved for use in the intended hazardous area and labeled
accordingly.
•Do not use devices that have been operated outside the conditions specified for
hazardous areas. If you have used the device outside the conditions for hazardous areas,
make all Ex markings unrecognizable on the nameplate.
WARNING
Loss of safety of device with type of protection "Intrinsic safety Ex i"
If the device or its components have already been operated in non-intrinsically safe circuits
or the electrical specifications have not been observed, the safety of the device is no longer
ensured for use in hazardous areas. There is a risk of explosion.
•Connect the device with type of protection "Intrinsic safety" solely to an intrinsically safe
circuit.
•Observe the specifications for the electrical data on the certificate and/or in Technical
specifications (Page 61).

SITRANS LCS100 2-wire mA and Relay Version
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Description
3
3.1 Measurement principle
The SITRANS LCS100 detects the capacitance around its probe. Due to the active shield
technology it has an increased insensitivity to material buildup on the probe.
3.2 Application
The SITRANS LCS100 is a capacitance switch for:
•Level detection of liquids, solids (powder and granules), slurries and foam
•Interface detection (for example, oil / water or foam / liquid)
It works in all types of vessels, pipes, and silos within a wide range of applications, such as:
•Food, brewery, dairy, beverage, and pharmaceuticals
•Chemical and petrochemical
•Water and waste water
•Machine building industry
It can also be used for leakage detection in double walled vessels, tanks and silos or in
moldings and collecting ponds.
3.3 Features
Process
•Measurement independent from influence of the vessel wall
•Factory provided precalibration allows measurement of most applications without
sensitivity setting on site
•Active shield electrode for compensation of material buildup
•Potted construction protects from shock, vibration, humidity, condensation
•Dielectric constant of 1.5 or more
•Process temperature up to 125°C
•Intrinsically Safe (IS) design for Hazardous areas (requires external barrier)
•Approvals CE, UKCA, UKEX, ATEX, IECEx, FM, CSA, INMETRO, WHG, VLAREM II

Description
3.3 Features
SITRANS LCS100 2-wire mA and Relay Version
Operating Instructions, 05/2023, A5E52142831-AA 13
Electronics
•4-wire DC with relay signal output
•2-wire 8/16 mA
•4-20mA continuous mode (4mA = uncovered probe, 20mA = probe covered with high
dielectric material)
•Terminal or M12 connection
•Sensitivity setting by potentiometer, including visual feedback via LED
•Remote Test with external signal conditioning instrument
Mechanics
•Corrosion resistant construction with enclosure made of thermoplastic polyester, wetted
parts made of PPS, PVDF, PEEK and 316L stainless steel
•Compact probe length
•Pipe extension (max. 4m [157,5"]), optional sliding sleeve allows to change the switch
point easily during operation of the device
•Cable extension (max. 20m [787,4"]), cuttable by user
•Various process connections: threaded (including G½“ hygienic), flanged (screwed) or Tri-
clamp

SITRANS LCS100 2-wire mA and Relay Version
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Installing/mounting
4
4.1 Basic safety notes
4.1.1 Proper mounting
4.1.1.1 Process pressure
Improper installation may result in loss of process pressure. Observe possible pressure
limitation from the used flange type or in case of use of the sliding sleeve.
4.1.1.2 Chemical resistance against the medium
Materials of construction are chosen based on their chemical compatibility (or inertness) for
general purposes. For exposure to specific environments, check with chemical compatibility
charts before installing.
4.1.1.3 Fastening of the threaded process connection
Mounting torque for the thread may not exceed 40 Nm (metal thread)/ 20 Nm (plastic
thread). Use a open-end wrench. Do not fasten by turning the housing, as this will destroy
the device.
4.1.1.4 EHEDG approval/Food grade material
The materials are available for the use under normal and predictable applications (according
to Reg. (EC) No. 1935/2004). Other conditions can influence the safety.
NOTICE
Incorrect mounting
The device can be damaged, destroyed, or its functionality impaired through improper
mounting.
•Before installing ensure there is no visible damage to the device.
•Make sure that process connectors are clean, and suitable gaskets and glands are used.
•Mount the device using suitable tools. Refer to the information in Technical
specifications (Page 61).

Installing/mounting
4.2 Mounting
SITRANS LCS100 2-wire mA and Relay Version
Operating Instructions, 05/2023, A5E52142831-AA 15
4.2 Mounting
Handling precautions
To prevent damage of the pipe extension, all devices with a pipe longer than 2 m (6.5 ft)
must be supported at these three points when lifting from a horizontal position.
①
At the process connection or flange
②
Midway across the pipe
③
At the end of the pipe before the probe
Sliding sleeve
①
Tighten both straining screws with 15 Nm to obtain resistance against pressure
Direction of the cable glands (enclosure Ø65mm [2.56"])
When the unit is mounted from the side, ensure, that the cable glands face downwards and
are closed to avoid water penetration into the housing. The enclosure can be rotated against
the process connection after mounting.
Sealing
Ensure proper seal of the process connection thread in case of process pressure.
Hygienic process connection
Observe that the correct "On site process connection" is present, see G 1/2" hygienic process
connection/EHEDG approval (Page 75).

Installing/mounting
4.3 Liquids applications
SITRANS LCS100 2-wire mA and Relay Version
16 Operating Instructions, 05/2023, A5E52142831-AA
4.3 Liquids applications
4.3.1 LCS100 compact version
CAUTION
Observe:
•General distances of the probe, see Probe mounting distances - liquids (Page 19).
•Distance to material flow (filling)
•Max. permitted mechanical load, see Environmental (Page 66).
Vertical vessel
①
Full detector horizontal
②
Demand or empty detector horizontal
③
Empty detector vertical from the bottom
Horizontal vessel
④
Full detector vertical
⑤
Demand or empty detector horizontal
⑥
Empty detector vertical from the bottom
Horizontal pipe
⑦
Full detector vertical
⑧
Demand or empty detector horizontal
⑨
Empty detector vertical from the bottom
Vertical pipe
⑩
Full, demand or empty detector horizontal
Bypass
⑪
Full detector horizontal
⑫Demand or empty detector horizontal

Installing/mounting
4.3 Liquids applications
SITRANS LCS100 2-wire mA and Relay Version
Operating Instructions, 05/2023, A5E52142831-AA 17
4.3.2 LCS100 rod version
CAUTION
Observe:
•General distances of the probe, see Probe mounting distances - liquids (Page 19).
•Distance to material flow (filling)
•Max. permitted mechanical load, see Environmental (Page 66).
Vertical vessel: Full, demand, or empty
detector
①
Vertical
②
Vertical with sliding sleeve
③
Vertical with long mounting socket
④
Vertical from bottom
Horizontal vessel
⑤
Full, demand, or empty detector vertical
⑥
Vertical with sliding sleeve
⑦
Vertical with long mounting socket
Bypass
⑧
Full, demand, or empty detector vertical

Installing/mounting
4.3 Liquids applications
SITRANS LCS100 2-wire mA and Relay Version
18 Operating Instructions, 05/2023, A5E52142831-AA
4.3.3 LCS100 cable version
CAUTION
Observe:
•General distances of the probe to the vessel wall, see Probe mounting distances - liquids
(Page 19). Consider that the hanging probe can move sideways with material
movement.
•Distance to material flow (filling)
•Max. permitted mechanical load, see Environmental (Page 66).
Vertical vessel: Full, demand, or empty
detector
①
Vertical
②
Vertical with long mounting socket
Horizontal vessel: Full, demand, or empty
detector
③
Vertical
④
Vertical with long mounting socket

Installing/mounting
4.3 Liquids applications
SITRANS LCS100 2-wire mA and Relay Version
Operating Instructions, 05/2023, A5E52142831-AA 19
4.3.4 Probe mounting distances - liquids
Probe distance
•Observe nozzle length (Probe should lead into the product).
•Observe minimum distance between two probes, and to the metal vessel wall.
Correct
Probe leads
into the prod-
uct
Wrong
Nozzle too
long

Installing/mounting
4.4 Solids applications
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4.4 Solids applications
4.4.1 LCS100 compact version
CAUTION
Observe:
•General distances of the probe, see Probe mounting distances - solids (Page 23).
•Distance to material flow (filling)
•Max. permitted mechanical load, see Environmental (Page 66).
•Wearing due to abrasive bulk material
①Full detector horizontal or oblique.
Slight incline mounting helps remaining material to fall off more easily
②Demand or empty detector horizontal or oblique. Slight incline mounting helps remaining ma-
terial to fall off more easily. Protective angle recommended depending on load and abrasion of
the material
③
Empty detector oblique from the bottom
④
Empty detector in the silo outlet