Siemens SITRANS L Series User manual

SITRANS L
Radar transmitters
SITRANS Probe LR with mA/HART
Operating Instructions
7ML5430 (SITRANS Probe LR with mA/HART)
05/2019
A5E32337711
-AC
Introduction
1
Safety notes
2
Description
3
Installing/mounting
4
Connecting
5
Commissioning
6
Parameter assignment
7
Service and maintenance
8
Troubleshooting
9
Technical data
10
Dimension drawing
11
Technical reference
A
HART communication
B
Application examples
C
Hazardous area installations
D
Certificates and support
E

Siemens AG
Division Process Industries and Drives
Postfach 48 48
90026 NÜRNBERG
GERMANY
Document order number: A5E32337711
Ⓟ
06/2019 Subject to change
Copyright © Siemens AG 2019.
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 Probe LR with mA/HART
Operating Instructions, 05/2019, A5E32337711-AC 3
Table of contents
1 Introduction................................................................................................................................................ 8
1.1 Purpose of this documentation.................................................................................................8
1.2 Checking the consignment .......................................................................................................8
1.3 Industrial use.............................................................................................................................8
1.4 Product compatibility.................................................................................................................9
1.5 Security information..................................................................................................................9
1.6 Transportation and storage.....................................................................................................10
1.7 Notes on warranty...................................................................................................................10
2 Safety notes............................................................................................................................................. 11
2.1 Preconditions for use..............................................................................................................11
2.1.1 Safety marking symbols..........................................................................................................11
2.2 Laws and directives ................................................................................................................11
2.2.1 Industry Canada conformity....................................................................................................12
2.2.2 Conformity with European directives......................................................................................12
2.2.3 Radio Equipment Directive (RED) compliance (Europe)........................................................13
2.2.4 FCC Conformity......................................................................................................................13
2.2.5 CE electromagnetic compatibility (EMC) conformity ..............................................................14
2.3 Use in hazardous areas..........................................................................................................14
2.3.1 Loss of safety of device with type of protection "Intrinsic safety Ex i"....................................15
3 Description............................................................................................................................................... 16
3.1 SITRANS Probe LR................................................................................................................16
3.2 SITRANS Probe LR system implementation..........................................................................17
4 Installing/mounting................................................................................................................................... 18
4.1 Basic safety notes...................................................................................................................18
4.1.1 Incorrect disassembly.............................................................................................................18
4.2 Installation notes.....................................................................................................................19
4.3 Nozzle location........................................................................................................................21
4.4 Nozzle design .........................................................................................................................21
4.5 Mounting instructions..............................................................................................................22
5 Connecting .............................................................................................................................................. 23
5.1 Power......................................................................................................................................23
5.2 Connecting SITRANS Probe LR.............................................................................................23
5.3 Nameplates for hazardous area installations .........................................................................24
5.3.1 FM and CSA connection drawings .........................................................................................25

Table of contents
SITRANS Probe LR with mA/HART
4Operating Instructions, 05/2019, A5E32337711-AC
6 Commissioning........................................................................................................................................ 26
6.1 Basic safety notes.................................................................................................................. 26
6.2 Local commissioning.............................................................................................................. 26
6.2.1 Activating SITRANS Probe LR............................................................................................... 26
6.2.2 Operating SITRANS Probe LR .............................................................................................. 26
6.2.3 Low temperature effects on RUN/PROGRAM modes........................................................... 27
6.2.4 RUN mode ............................................................................................................................. 27
6.2.5 PROGRAM mode................................................................................................................... 28
6.2.6 Handheld programmer functions............................................................................................ 28
6.2.6.1 Handheld programmer........................................................................................................... 29
6.2.6.2 Handheld programmer: function keys in PROGRAM mode.................................................. 30
6.2.6.3 Handheld programmer: function keys in RUN mode............................................................. 31
6.2.6.4 Accessing a parameter.......................................................................................................... 31
6.2.7 Security.................................................................................................................................. 33
6.2.8 Changing a parameter value.................................................................................................. 33
6.2.9 Master reset........................................................................................................................... 33
6.2.10 Using units or percent (%) ..................................................................................................... 34
6.2.11 Quick start wizards................................................................................................................. 34
6.2.11.1 Quick setup for local operation (outline)................................................................................ 34
6.2.11.2 P001: Operation..................................................................................................................... 35
6.2.11.3 P003: Measurement response............................................................................................... 36
6.2.11.4 P005: Units............................................................................................................................. 36
6.2.11.5 P006: Empty........................................................................................................................... 36
6.2.11.6 P007: Span ............................................................................................................................ 37
6.2.11.7 P010: Language..................................................................................................................... 38
6.2.11.8 P838 Auto false echo suppression........................................................................................ 38
6.2.11.9 Additional settings.................................................................................................................. 39
7 Parameter assignment............................................................................................................................. 40
7.1 P000 Lock.............................................................................................................................. 41
7.2 Quick start (P001 to P010)..................................................................................................... 42
7.3 P003 Measurement response................................................................................................ 43
7.4 P004 Antenna type ................................................................................................................ 44
7.5 P005 Units.............................................................................................................................. 44
7.6 P006 Empty (process empty level)........................................................................................ 44
7.7 P007 Span (process full level)............................................................................................... 45
7.8 P010 Language...................................................................................................................... 46
7.9 P050 to P055 Volume............................................................................................................ 46
7.10 P050 Vessel shape................................................................................................................ 46
7.11 P051 Maximum volume ......................................................................................................... 48
7.12 P052 Vessel dimension A...................................................................................................... 48
7.13 P053 Vessel dimension L ...................................................................................................... 49
7.14 P054 Level breakpoints ......................................................................................................... 49
7.15 P055 Volume breakpoints...................................................................................................... 50

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Operating Instructions, 05/2019, A5E32337711-AC 5
7.16 P069 Unlocked value..............................................................................................................51
7.17 Failsafe (P070 to P073)..........................................................................................................52
7.17.1 P070 Failsafe timer.................................................................................................................52
7.17.2 P071 Failsafe material level....................................................................................................52
7.17.3 P073 Failsafe level..................................................................................................................52
7.18 mA output (P201 to P215)......................................................................................................53
7.18.1 P201 mA Output function........................................................................................................53
7.18.2 Independent mA setpoint parameters (P210 and P211)........................................................53
7.18.2.1 P210 4 mA setpoint (low output).............................................................................................54
7.18.2.2 P211 20 mA setpoint (high output).........................................................................................55
7.18.3 mA output limit parameters (P212 and P213) ........................................................................55
7.18.3.1 P212 Minimum mA limit..........................................................................................................55
7.18.3.2 P213 Maximum mA limit.........................................................................................................55
7.18.4 P214 4 mA output trim............................................................................................................56
7.18.5 P215 20 mA output trim..........................................................................................................56
7.19 Installation records (P341 to P346) ........................................................................................56
7.19.1 P341 RUN time.......................................................................................................................56
7.19.2 P342 Power-on resets ............................................................................................................57
7.19.3 P343 Internal temperature......................................................................................................57
7.19.4 P346 Serial number................................................................................................................57
7.20 Range calibration (P652 to P655)...........................................................................................57
7.20.1 P652 Offset correction............................................................................................................58
7.20.2 P655 Propagation factor.........................................................................................................58
7.21 Rate (P700 and P701)............................................................................................................59
7.21.1 P700 Maximum fill rate ...........................................................................................................59
7.21.2 P701 Maximum empty rate.....................................................................................................59
7.22 Measurement verification (P709 to P713)..............................................................................60
7.22.1 P709 Damping filter ................................................................................................................60
7.22.2 P711 Echo lock.......................................................................................................................60
7.22.3 P712 Echo lock sampling .......................................................................................................61
7.22.4 P713 Echo lock window..........................................................................................................62
7.23 P752 HART address...............................................................................................................63
7.24 Communications (P799).........................................................................................................63
7.24.1 P799 Communications control................................................................................................63
7.25 Echo processing (P800 to P807)............................................................................................63
7.25.1 P800 Near blanking ................................................................................................................64
7.25.2 P801 Range extension ...........................................................................................................64
7.25.3 P804 Confidence threshold ....................................................................................................64
7.25.4 P805 Echo confidence............................................................................................................65
7.25.5 P806 Echo strength ................................................................................................................65
7.25.6 P807 Noise .............................................................................................................................65
7.26 Algorithm (P820).....................................................................................................................65
7.26.1 P820 Echo algorithm...............................................................................................................65
7.27 TVT (Time Varying Threshold) adjustment parameters (P831 to P839)................................66
7.27.1 P831 Manual TVT Shaper......................................................................................................66
7.27.2 P832 Manual TVT Shaper Adjust...........................................................................................66
7.27.3 P837 Auto false echo suppression.........................................................................................66

Table of contents
SITRANS Probe LR with mA/HART
6Operating Instructions, 05/2019, A5E32337711-AC
7.27.4 P838 Auto false echo suppression distance.......................................................................... 67
7.27.5 P839 TVT hover level ............................................................................................................ 69
7.28 Test (P900 to P924)............................................................................................................... 69
7.28.1 P900 Software revision number............................................................................................. 69
7.28.2 P901 Memory test.................................................................................................................. 69
7.29 Measurement......................................................................................................................... 69
7.29.1 P911 mA output value (HART/mA only)................................................................................ 69
7.29.2 P920 Reading measurement................................................................................................. 70
7.29.3 P921 Material measurement.................................................................................................. 70
7.29.4 P922 Space measurement .................................................................................................... 70
7.29.5 P923 Distance measurement................................................................................................. 70
7.29.6 P924 Volume measurement .................................................................................................. 70
7.29.7 P999 Master reset.................................................................................................................. 71
8 Service and maintenance ........................................................................................................................ 72
8.1 Maintenance and repair work................................................................................................. 72
8.2 Return procedure................................................................................................................... 72
8.3 Disposal ................................................................................................................................. 73
9 Troubleshooting....................................................................................................................................... 74
9.1 General fault codes................................................................................................................ 74
9.2 Fault codes (firmware revision 3.02 or higher) ...................................................................... 74
9.3 Fault codes (firmware revision 1.05 or earlier) ...................................................................... 76
9.4 Operation troubleshooting...................................................................................................... 78
10 Technical data ......................................................................................................................................... 80
10.1 Power..................................................................................................................................... 80
10.2 Performance........................................................................................................................... 81
10.3 Construction........................................................................................................................... 82
10.4 Operating conditions.............................................................................................................. 82
10.5 Process.................................................................................................................................. 82
10.6 Approvals............................................................................................................................... 83
11 Dimension drawing.................................................................................................................................. 84
11.1 SITRANS Probe LR dimensions............................................................................................ 84
A Technical reference................................................................................................................................. 86
A.1 Principles of operation ........................................................................................................... 86
A.2 Transceiver ............................................................................................................................ 86
A.3 Near blanking......................................................................................................................... 87
A.4 Loss of echo (LOE)................................................................................................................ 87
A.5 Range extension.................................................................................................................... 88
A.6 False-echo suppression......................................................................................................... 88

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SITRANS Probe LR with mA/HART
Operating Instructions, 05/2019, A5E32337711-AC 7
A.7 TVT (Time varying threshold) curves......................................................................................88
A.8 Auto false-echo suppression ..................................................................................................88
A.9 Output.....................................................................................................................................90
A.10 Failsafe ...................................................................................................................................91
A.11 Chemical compatibility............................................................................................................91
B HART communication.............................................................................................................................. 92
B.1 HART communication for SITRANS Probe LR.......................................................................92
B.2 HART electronic device description (EDD).............................................................................92
B.3 SIMATIC process device manager (PDM)..............................................................................92
B.4 Maintenance settings (accessible via PDM only)...................................................................93
B.5 HART version..........................................................................................................................93
B.6 Burst mode..............................................................................................................................93
C Application examples............................................................................................................................... 94
C.1 Application examples introduction..........................................................................................94
C.2 Example 1: Liquid resin in storage vessel, level measurement..............................................94
C.3 Example 2: Horizontal vessel with volume measurement......................................................96
D Hazardous area installations.................................................................................................................... 98
D.1 Wiring details ..........................................................................................................................98
D.2 FM/CSA ..................................................................................................................................98
D.3 EU equivalency.......................................................................................................................99
D.4 Loop voltage versus loop resistance....................................................................................100
D.5 IS safety barrier selection.....................................................................................................100
D.6 Instructions specific to hazardous area installations (reference European ATEX
Directive 2014/34/EU Annex II, 1/0/6) ..................................................................................102
E Certificates and support......................................................................................................................... 103
E.1 Technical support..................................................................................................................103
E.2 Certificates............................................................................................................................103
Glossary ................................................................................................................................................ 104
Index...................................................................................................................................................... 109

SITRANS Probe LR with mA/HART
8Operating Instructions, 05/2019, A5E32337711-AC
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 the device, connecting it
electronically, configuring the parameters and commissioning it, as well as service and
maintenance engineers.
1.2 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.
1.3 Industrial use
NOTICE
Use in a domestic environment
This Class B Group 1 equipment is intended for use in industrial areas.
In a domestic environment this device may cause radio interference.

Introduction
1.4 Product compatibility
SITRANS Probe LR with mA/HART
Operating Instructions, 05/2019, A5E32337711-AC 9
1.4 Product compatibility
The following table describes compatibility between document edition, device revision,
engineering system and associated Electronic Device Description (EDD).
Manual edi-
tion
Remarks
Device revision
02/2006 •Resolved issue that could cause peak to be selected below
the TVT curve.
•MP&F parameters added to device.
•Fault system upgraded to use S# codes to match PROFIBUS
products.
•Increased number of level/volume breakpoints to 32.
•Improved linearity over ambient temperature.
NOTE: Software revision 3.02 is not backwards compatible
due to hardware compatibility.
Firmware: 3.02
EDD: 3.02.01
08/2004 Corrected issue: P210 and P211 values (or HART values for
URV/LRV) were not being preserved over a power cycle if opera-
tion was set to distance or volume.
Firmware: 1.05
EDD: 1.04
06/2004 First edition Firmware: 1.04
EDD: 2.00
1.5 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 only form one element of such a concept.
Customer is responsible to prevent unauthorized access to its plants, systems, machines
and networks. Systems, machines and components should only be connected to the
enterprise network or the internet if and to the extent necessary and with appropriate security
measures (e.g. use of firewalls and network segmentation) in place.
Additionally, Siemens’ guidance on appropriate security measures should be taken into
account. You can find more information about industrial security by visiting:
https://www.siemens.com/industrialsecurity.
Siemens’ products and solutions undergo continuous development to make them more
secure. Siemens strongly recommends you apply product updates as soon as available and
always use the latest product versions. Use of product versions that are no longer supported,
and failure to apply 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/industrialsecurity.

Introduction
1.6 Transportation and storage
SITRANS Probe LR with mA/HART
10 Operating Instructions, 05/2019, A5E32337711-AC
1.6 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 data
(Page 80).
1.7 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 Probe LR with mA/HART
Operating Instructions, 05/2019, A5E32337711-AC 11
Safety notes
2
2.1 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.
2.1.1 Safety marking symbols
In manual
On product
Description
earth (ground) terminal (shield)
Yellow background
WARNING: refer to accompanying documents (manual) for de-
tails.
2.2 Laws and directives
Observe the safety rules, provisions and laws applicable in your country during connection,
assembly and operation. These include, for example:
●National Electrical Code (NEC - NFPA 70) (USA)
●Canadian Electrical Code (CEC) (Canada)
Further provisions for hazardous area applications are for example:
●IEC 60079-14 (international)
●EN 60079-14 (EU)

Safety notes
2.2 Laws and directives
SITRANS Probe LR with mA/HART
12 Operating Instructions, 05/2019, A5E32337711-AC
2.2.1 Industry Canada conformity
Canada Installations only: Industry Canada (IC) rules
NOTICE
Use on a "no-interference, no-protection" basis
This device shall be installed and operated in a completely enclosed container to prevent
RF emission, which otherwise can interfere with aeronautical navigation. Installation shall
be done by trained installers, in strict compliance with the manufacturer’s instructions.
The use of this device is on a "no-interference, no-protection" basis:
•The user shall accept operations of high-powered radar in the same frequency band
which may interfere with or damage this device.
•The user is responsible for removing, at the user’s expense, any device found to
interfere with primary licensing operations.
2.2.2 Conformity with European directives
The CE marking on the device symbolizes the conformity with the following European
directives:
Electromagnetic compatibil-
ity EMC
2014/30/EU
Directive of the European Parliament and of the Council on the
harmonisation of the laws of the Member States relating to elec-
tromagnetic compatibility
Low voltage directive LVD
2014/35/EU
Directive of the European Parliament and of the Council on the
harmonisation of the laws of the Member States relating to the
making available on the market of electrical equipment de-
signed for use within certain voltage limits
Atmosphère explosible
ATEX
2014/34/EU
Directive of the European Parliament and the Council on the
harmonisation of the laws of the Member States relating to
equipment and protective systems intended for use in p
otential-
ly explosive atmospheres
RED
2014/53/EU
Directive of the European Parliament and of the Council on the
harmonisation of the laws of the Member States relating to the
making available on the market of radio equipment and repeal-
ing Directive 1999/5/EC
The applicable directives can be found in the EC conformity declaration of the specific
device.

Safety notes
2.2 Laws and directives
SITRANS Probe LR with mA/HART
Operating Instructions, 05/2019, A5E32337711-AC 13
2.2.3 Radio Equipment Directive (RED) compliance (Europe)
Hereby, Siemens declares that the SITRANS Probe LR is in compliance with the essential
requirements and other relevant provisions of Directive 2014/53/EU. The Probe LR complies
with EN 302 372 for use in closed storage vessels, when installed according to the
installation requirements of EN 302 372, and may be used in all EU countries. For the
receiver test that covers the influence of an interferer signal to the device, the performance
criterion has at least the following level of performance according to ETSI TS 103 361 [6]:
●Performance criterion: measurement value variation Δd over time during a distance
measurement
●Level of performance: Δd ≤ ±50 mm
2.2.4 FCC Conformity
US Installations only: Federal Communications Commission (FCC) rules
WARNING
Authority to operate equipment
Changes or modifications not expressly approved by Siemens could void the user’s
authority to operate the equipment.
Note
•
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated in a
commercial environment.
•
This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this equipment in a residential area is
likely to cause harmful interference to radio communications, in which case the user will
be required to correct the interference at his own expense.

Safety notes
2.3 Use in hazardous areas
SITRANS Probe LR with mA/HART
14 Operating Instructions, 05/2019, A5E32337711-AC
2.2.5 CE electromagnetic compatibility (EMC) conformity
This equipment has been tested and found to comply with the following EMC standards:
EMC standard
Title
CISPR 11:2009 + A1:2010/EN
55011:2009 + A1:2010, CLASS A Limits and methods of measurements of radio disturbance characteristics of industrial, scientific, and medical (ISM) radio-
frequency equipment.
EN 61326:2013 (IEC 61326:2012) Electrical Equipment for Measurement, Control and Laboratory
Use – Electromagnetic Compatibility.
EN61000-4-2:2009 Electromagnetic Compatibility (EMC) Part 4-2: Testing and
measurement techniques – Electrostatic discharge immunity
test.
EN61000-4-3:2006 + A1:2008 +
A2:2010 Electromagnetic Compatibility (EMC) Part 4-3: Testing and measurement techniques – Radiated, radiofrequency, electro-
magnetic field immunity test 2006 + A1:2008 + A2:2010.
EN61000-4-4:2004 + A1:2010 Electromagnetic Compatibility (EMC) Part 4-4: Testing and
measurement techniques – Electrical fast transient/burst im-
munity test.
EN61000-4-5:2006 Electromagnetic Compatibility (EMC) Part 4-5: Testing and
measurement techniques – Surge immunity test.
EN61000-4-6:2010 Electromagnetic Compatibility (EMC) Part 4-6: Testing and
measurement techniques – Immunity to conducted disturb-
ances, induced by radio-frequency fields.
EN61000-4-8:2010 Electromagnetic Compatibility (EMC) Part 4-8: Testing and
measurement techniques – Power frequency magnetic field
immunity test.
2.3 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.

Safety notes
2.3 Use in hazardous areas
SITRANS Probe LR with mA/HART
Operating Instructions, 05/2019, A5E32337711-AC 15
2.3.1 Loss of safety of device with type of protection "Intrinsic safety Ex i"
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
data (Page 80).

SITRANS Probe LR with mA/HART
16 Operating Instructions, 05/2019, A5E32337711-AC
Description
3
3.1 SITRANS Probe LR
SITRANS Probe LR is a 2-wire loop-powered, continuous level measuring instrument that
utilizes advanced pulse radar technology operating at a frequency of approximately 6 GHz.
The instrument consists of an electronic component coupled to the antenna and process
connection. It is very easy to install and set up, using either the infrared handheld
programmer locally, or using SIMATIC PDM from a remote location.
Communication is via HART. Signals are processed using Process Intelligence which has
been field-proven in over 500,000 applications worldwide (ultrasonic and radar).
SITRANS Probe LR is available in two versions
●General purpose (non-hazardous)
●Intrinsically Safe (with suitable barrier)
Applications
Note
Approval information
Refer to product label for approval information.
SITRANS Probe LR is designed to measure liquid levels in a variety of applications.
●liquid bulk storage vessels
●simple process vessels with gentle agitation
●liquids
●slurries
Shield length 250 mm (10"):
use for long nozzles of 250
mm (10") or less in length
Shield length: 100 mm (4"):
use for nozzles of 100 mm (4")
or less in length

Description
3.2 SITRANS Probe LR system implementation
SITRANS Probe LR with mA/HART
Operating Instructions, 05/2019, A5E32337711-AC 17
3.2 SITRANS Probe LR system implementation
SITRANS Probe LR supports HART communication protocol and SIMATIC PDM software.
Typical PLC/mA configuration with HART
①
Power supply
Depending on the system design, the power supply may be separate from the PLC, or integral to
it.
A 250 Ohm resistor may be required if the loop resistance is less than 250 Ohms.
②
Active PLC
③
HART modem
④
HART communicator
Programming
SITRANS Probe LR carries out its level measurement function according to the set of built-in
parameters. You can make parameter changes via the handheld programmer, via a PC
using SIMATIC PDM, or via a HART Handheld Communicator.
For a listing of device approvals, see Approvals (Page 83) or Nameplates for hazardous area
installations (Page 24).

SITRANS Probe LR with mA/HART
18 Operating Instructions, 05/2019, A5E32337711-AC
Installing/mounting
4
4.1 Basic safety notes
4.1.1 Incorrect disassembly
WARNING
Incorrect disassembly
The following risks may result from incorrect disassembly:
- Injury through electric shock
- Risk through emerging media when connected to the process
- Risk of explosion in hazardous area
In order to disassemble correctly, observe the following:
•Before starting work, make sure that you have switched off all physical variables such
as pressure, temperature, electricity etc. or that they have a harmless value.
•If the device contains hazardous media, it must be emptied prior to disassembly. Make
sure that no environmentally hazardous media are released.
•Secure the remaining connections so that no damage can result if the process is started
unintentionally.
DANGER
Pressure applications
Danger to personnel, system and environment will result from improper disassembly.
•Never attempt to loosen, remove, or disassemble process connection while vessel
contents are under pressure.
Note
Product designation
This product is designated as a Pressure Accessory per Directive 2014/68/EU and is not
intended for use as a safety device.

Installing/mounting
4.2 Installation notes
SITRANS Probe LR with mA/HART
Operating Instructions, 05/2019, A5E32337711-AC 19
Note
Chemical compatibility
Materials of construction ar
e chosen based on their chemical compatibility (or inertness) for
general purposes. For exposure to specific environments, check with chemical compatibility
charts before installing.
Note
Material compatibility
Siemens can provide you with support concerning selection of sensor components wetted by
process media. However, you are responsible for the selection of components. Siemens
accepts no liability for faults or failures resulting from incompatible materials.
4.2 Installation notes
●Refer to device nameplate for approval information.
●The process device tag shall remain with the pressure boundary assembly. The process
pressure boundary assembly comprises the components that act as a barrier against
pressure loss from the process vessel: that is, the combination of process connection
body and emitter, but normally excluding the electrical enclosure. In the event the
instrument package is replaced, the process device tag shall be transferred to the
replacement unit.
●SITRANS Probe LR units are hydrostatically tested, meeting or exceeding the
requirements of the ASME Boiler and Pressure Vessel Code and the European Pressure
Equipment Directive.
●Serial numbers stamped in each process connection body provide a unique identification
number indicating date of manufacture.
Example: MMDDYY – XXX (where MM = month, DD = day, YY = year, and XXX=
sequential unit produced
Further markings (space permitting) indicate flange configuration, size, pressure class,
material, and material heat code.
Recommendations
●Ensure ambient temperature is within –40 to 80 °C (–40 to 176 °F).
●Provide easy access for viewing the display and programming via the handheld
programmer.
●Ensure the environment is suitable to the housing rating and materials of construction.

Installing/mounting
4.2 Installation notes
SITRANS Probe LR with mA/HART
20 Operating Instructions, 05/2019, A5E32337711-AC
Precautions
●Avoid proximity to high voltage or current wiring, high voltage or current contacts, and to
variable frequency motor speed controllers.
●Avoid interference to the emission cone from obstructions or from the fill path.
●Avoid central locations on vessels.
①
Process temperature: –40 to 80 °C (–40 to 176 °F)
②
Locking collar over threaded connection; secured by three 2 mm Allen set-screws.
When the locking collar is secured, it prevents the enclosure rotating on the threaded connec-
tion.
③
Ambient temperature (surrounding enclosure volume) –40 to 80 °C (–40 to 176 °F)
④
Handheld programmer
⑤
Nameplate location
⑥
Process device tag
⑦
Customer-supplied flange
Avoid central locations on vessels
For vessels with conical or parabolic tops, avoid mounting the device at the center. The
concavity of the top can focus echoes into the center, giving false readings.