Siemens Sitrans LR250 User manual

Operating Instructions
SITRANS LR250 (PROFIBUS PA)
08/2014Edition
Radar Transmitters

© Siemens AG 2013
Safety Guidelines
Warning notices must be observed to ensure personal safety as well as that of others, and to protect the product and the connected equipment.
These warning notices are accompanied by a clarification of the level of caution to be observed.
Qualified Personnel
This device/system may only be set up and operated in conjunction with this manual. Qualified personnel are only authorized to install and
operate this equipment in accordance with established safety practices and standards.
Unit Repair and Excluded Liability:
The user is responsible for all changes and repairs made to the device by the user or the user’s agent.
All new components are to be provided by Siemens Milltronics Process Instruments.
Restrict repair to faulty components only.
Do not reuse faulty components.
Warning: Cardboard shipping package provides limited humidity and moisture protection. This product can only function properly and safely if
it is correctly transported, stored, installed, set up, operated, and maintained.
This product is intended for use in industrial areas. Operation of this equipment in a residential area may cause interference to several
frequency based communications.
Note: Always use product in accordance with specifications.
Copyright Siemens AG 2013. All Rights Reserved Disclaimer of Liability
This document is available in bound version and in
electronic version. We encourage users to purchase
authorized bound manuals, or to view electronic versions as
designed and authored by Siemens Milltronics Process
Instruments. Siemens Milltronics Process Instruments will
not be responsible for the contents of partial or whole
reproductions of either bound or electronic versions.
While we have verified the contents of this
manual for agreement with the instrumentation
described, variations remain possible. Thus we
cannot guarantee full agreement. The contents of
this manual are regularly reviewed and
corrections are included in subsequent editions.
We welcome all suggestions for improvement.
Technical data subject to change.
MILLTRONICS®is a registered trademark of Siemens Milltronics Process Instruments.
Contact SMPI Technical Publications European Authorized Representative
at the following address:
Technical Publications Siemens AG
SiemensAG IndustrySector
Siemens Milltronics Process Instruments 76181 Karlsruhe
1954 Technology Drive, P.O. Box 4225 Deutschland
Peterborough, Ontario, Canada, K9J 7B1
Email: [email protected]
For a selection of Siemens Milltronics level measurement manuals, go to:
www. siemens.com/processautomation. Under Process Instrumentation, select
Level Measurement and then go to the manual archive
listed under the product family.
For a selection of Siemens Milltronics weighing manuals, go to:
www. siemens.com/processautomation. Under Weighing Technology, select Continuous Weighing Systems and then go to the manual
archive listed under the product family.

SITRANS LR250 (PROFIBUS PA)
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SITRANS
Radar Transmitters
SITRANS LR250 (PROFIBUS PA)
Operating Instructions
08/2014
A5E32221386
-AC
Introduction
1
Safety information
2
Description
3
Installing/mounting
4
Connecting
5
Commissioning
6
Remote operation
7
Parameter reference
8
Service and maintenance
9
Diagnosing and
troubleshooting
10
Technical data
11
Dimension drawings
12
Appendix A: Technical
reference
A
Appendix B: PROFIBUS PA
profile structure
B
Appendix C:
Communications via
PROFIBUS
C
Appendix D: Certificates and
Support
D
List of abbreviations
13
LCD menu structure
14

Siemens AG
Industry Sector
Postfach 48 48
90026 NÜRNBERG
GERMANY
Order number: A5E32221386
Ⓟ
07/2014 Subject to change
Copyright © Siemens AG 2014.
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 LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 3
Table of contents
1 Introduction............................................................................................................................................. 9
1.1 LR250 PA manual usage ...............................................................................................................9
1.2 Purpose of this documentation ......................................................................................................9
1.3 Document history ...........................................................................................................................9
1.4 Firmware revision history .............................................................................................................10
1.5 Designated use ............................................................................................................................11
1.6 Checking the consignment...........................................................................................................11
1.7 Transportation and storage..........................................................................................................12
1.8 Notes on warranty........................................................................................................................12
2 Safety information ................................................................................................................................. 13
2.1 Preconditions for safe use ...........................................................................................................13
2.1.1 Safety marking symbols...............................................................................................................13
2.1.2 Laws and directives .....................................................................................................................13
2.1.3 FCC Conformity ...........................................................................................................................14
2.1.4 Conformity with European directives ...........................................................................................15
2.1.5 CE Electromagnetic Compatibility (EMC) Conformity..................................................................16
2.2 Improper device modifications .....................................................................................................16
2.3 Requirements for special applications .........................................................................................17
2.4 Use in hazardous areas ...............................................................................................................17
3 Description............................................................................................................................................ 19
3.1 SITRANS LR250 overview...........................................................................................................19
3.2 Programming................................................................................................................................20
3.3 Applications..................................................................................................................................20
3.4 Approvals and certificates............................................................................................................20
4 Installing/mounting ................................................................................................................................ 21
4.1 Basic safety information...............................................................................................................21
4.1.1 Pressure applications...................................................................................................................22
4.1.1.1 Pressure Equipment Directive, PED, 97/23/EC...........................................................................23
4.2 Installation location requirements ................................................................................................24
4.3 Proper mounting...........................................................................................................................26
4.3.1 Nozzle design...............................................................................................................................27

Table of contents
SITRANS LR250 (PROFIBUS PA)
4Operating Instructions, 08/2014, A5E32221386-AC
4.3.2 Nozzle location............................................................................................................................ 28
4.3.3 Orientation in a vessel with obstructions..................................................................................... 31
4.3.4 Mounting on a Stillpipe or Bypass Pipe ...................................................................................... 32
4.3.5 Device orientation ....................................................................................................................... 33
4.4 Installation instructions................................................................................................................ 34
4.4.1 Threaded versions ...................................................................................................................... 35
4.4.2 Flanged versions......................................................................................................................... 36
4.4.3 Hygienic versions ........................................................................................................................ 38
4.5 Disassembly................................................................................................................................ 39
5 Connecting ............................................................................................................................................41
5.1 Basic safety information.............................................................................................................. 41
5.2 Connecting SITRANS LR250...................................................................................................... 42
5.3 Wiring setups for hazardous area installations ........................................................................... 45
5.3.1 Intrinsically safe wiring ................................................................................................................ 46
5.3.1.1 Intrinsically safe wiring (FM/CSA) ............................................................................................... 47
5.3.1.2 Intrinsically safe wiring (notes).................................................................................................... 47
5.3.2 Non-sparking wiring .................................................................................................................... 49
5.3.3 Non-incendive wiring (US/Canada only) ..................................................................................... 49
5.4 Instructions specific to hazardous area installations................................................................... 50
5.4.1 (Reference European ATEX Directive 94/9/EC, Annex II, 1/0/6) ............................................... 50
6 Commissioning ......................................................................................................................................53
6.1 Basic safety information.............................................................................................................. 53
6.2 Operating via the handheld programmer .................................................................................... 53
6.2.1 Power up ..................................................................................................................................... 54
6.2.2 Handheld programmer functions................................................................................................. 54
6.2.2.1 The LCD display.......................................................................................................................... 55
6.2.2.2 Handheld programmer (Part No. 7ML1930-1BK) ....................................................................... 57
6.2.3 Programming............................................................................................................................... 58
6.2.3.1 Quick Start Wizard via the handheld programmer ...................................................................... 63
6.2.3.2 Auto False Echo Suppression..................................................................................................... 65
6.2.3.3 Requesting an Echo Profile ........................................................................................................ 66
6.2.3.4 Device address ........................................................................................................................... 67
6.3 Application examples .................................................................................................................. 67
6.3.1 Liquid resin in storage vessel, level measurement ..................................................................... 68
6.3.2 Horizontal vessel with volume measurement.............................................................................. 69
6.3.3 Application with stillpipe .............................................................................................................. 71
7 Remote operation ..................................................................................................................................75
7.1 Operating via SIMATIC PDM ...................................................................................................... 75
7.1.1 Functions in SIMATIC PDM ........................................................................................................ 75
7.1.1.1 Features of SIMATIC PDM Rev. 6.0, SP4 or higher................................................................... 76
7.1.1.2 Features of SIMATIC PDM Rev. 5.2, SP1.................................................................................. 76

Table of contents
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 5
7.1.1.3 SIMATIC PDM Version ................................................................................................................76
7.1.2 Electronic Device Description (EDD) ...........................................................................................76
7.1.2.1 Updating the Electronic Device Description (EDD)......................................................................76
7.1.2.2 Configuring a new device.............................................................................................................77
7.1.3 Quick start wizard via SIMATIC PDM ..........................................................................................78
7.1.4 Changing parameter settings using SIMATIC PDM ....................................................................83
7.1.5 Parameters accessed via pull-down menus ................................................................................84
7.1.5.1 Echo profile utilities ......................................................................................................................84
7.1.5.2 Auto false echo suppression........................................................................................................87
7.1.5.3 Echo setup ...................................................................................................................................90
7.1.5.4 Maintenance.................................................................................................................................90
7.1.5.5 Acknowledge Faults.....................................................................................................................92
7.1.5.6 Wear.............................................................................................................................................92
7.1.5.7 Simulation ....................................................................................................................................92
7.1.5.8 Write locking.................................................................................................................................95
7.1.5.9 Master reset .................................................................................................................................96
7.1.5.10 Factory defaults............................................................................................................................96
7.1.5.11 Diagnostics...................................................................................................................................97
7.2 Operating via FDT......................................................................................................................104
7.2.1 Device Type Manager (DTM).....................................................................................................104
7.2.2 SITRANS DTM...........................................................................................................................104
7.2.3 The device EDD.........................................................................................................................105
7.2.4 Configuring a new device via FDT.............................................................................................105
8 Parameter reference ........................................................................................................................... 107
8.1 Alphabetical parameter list.........................................................................................................160
9 Service and maintenance.................................................................................................................... 165
9.1 Basic safety information.............................................................................................................165
9.2 Cleaning .....................................................................................................................................165
9.3 Maintenance and repair work.....................................................................................................166
9.3.1 Unit repair and excluded liability ................................................................................................167
9.3.2 Part replacement........................................................................................................................167
9.4 Disposal .....................................................................................................................................169
10 Diagnosing and troubleshooting .......................................................................................................... 171
10.1 Communication troubleshooting ................................................................................................171
10.2 Device status icons ....................................................................................................................172
10.3 General fault codes....................................................................................................................173
10.4 Operation troubleshooting..........................................................................................................176
11 Technical data .................................................................................................................................... 179
11.1 Power .........................................................................................................................................179
11.2 Performance...............................................................................................................................179

Table of contents
SITRANS LR250 (PROFIBUS PA)
6Operating Instructions, 08/2014, A5E32221386-AC
11.3 Interface .................................................................................................................................... 181
11.4 Mechanical ................................................................................................................................ 181
11.5 Environmental ........................................................................................................................... 184
11.6 Process ..................................................................................................................................... 184
11.7 Approvals .................................................................................................................................. 185
11.8 Programmer (infrared keypad).................................................................................................. 186
12 Dimension drawings.............................................................................................................................187
12.1 Threaded horn antenna............................................................................................................. 187
12.2 Threaded horn antenna with extension..................................................................................... 190
12.3 Flanged horn antenna............................................................................................................... 192
12.4 Flanged horn antenna with extension ....................................................................................... 194
12.5 Flanged encapsulated antenna (2"/DN50/50A sizes only) ....................................................... 196
12.6 Flanged encapsulated antenna (3"/DN80/80A sizes and larger).............................................. 198
12.7 Hygienic encapsulated antenna (2" ISO 2852 sanitary clamp) ................................................ 200
12.8 Hygienic encapsulated antenna (3" ISO 2852 sanitary clamp) ................................................ 201
12.9 Hygienic encapsulated antenna (4" ISO 2852 sanitary clamp) ................................................ 202
12.10 Hygienic encapsulated antenna (DN50 nozzle/slotted nut to DIN 11851)................................ 203
12.11 Hygienic encapsulated antenna (DN80 nozzle/slotted nut to DIN 11851)................................ 204
12.12 Hygienic encapsulated antenna (DN100 nozzle/slotted nut to DIN 11851).............................. 205
12.13 Hygienic encapsulated antenna (DN50 aseptic slotted nut to DIN 11864-1) ........................... 206
12.14 Hygienic encapsulated antenna (DN80 aseptic slotted nut to DIN 11864-1) ........................... 207
12.15 Hygienic encapsulated antenna (DN100 aseptic slotted nut to DIN 11864- 1) ........................ 208
12.16 Hygienic encapsulated antenna (DN50 aseptic flange to DIN 11864-2) .................................. 209
12.17 Hygienic encapsulated antenna (DN80 aseptic flange to DIN 11864-2) .................................. 210
12.18 Hygienic encapsulated antenna (DN100 aseptic flange to DIN 11864-2) ................................ 211
12.19 Hygienic encapsulated antenna (DN50 aseptic clamp to DIN 11864-3) .................................. 212
12.20 Hygienic encapsulated antenna (DN80 aseptic clamp to DIN 11864-3) .................................. 213
12.21 Hygienic encapsulated antenna (DN100 aseptic clamp to DIN 11864-3) ................................ 214
12.22 Hygienic encapsulated antenna (Tuchenhagen Type N).......................................................... 215
12.23 Hygienic encapsulated antenna (Tuchenhagen Type F).......................................................... 216
12.24 Threaded PVDF antenna .......................................................................................................... 217
12.25 Threaded connection markings................................................................................................. 218

Table of contents
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 7
12.26 Raised-Face flange per EN 1092-1 for flanged horn antenna...................................................219
12.27 Raised-Face flange per EN 1092-1 for flanged encapsulated antenna.....................................221
12.28 Flat-Face flange .........................................................................................................................224
12.29 Aseptic/hygienic flange DN50, DN80, DN100 for DIN 11864-2.................................................227
12.30 Process connection tag (pressure rated versions) ....................................................................230
A Appendix A: Technical reference......................................................................................................... 231
A.1 Principles of operation ...............................................................................................................231
A.2 Echo processing.........................................................................................................................232
A.2.1 Process Intelligence...................................................................................................................232
A.2.2 Echo Selection ...........................................................................................................................232
A.2.3 CLEF Range ..............................................................................................................................235
A.2.4 Echo Threshold..........................................................................................................................236
A.2.5 Echo Lock ..................................................................................................................................236
A.2.6 Auto False Echo Suppression....................................................................................................236
A.2.7 Measurement Range .................................................................................................................238
A.2.8 Measurement Response............................................................................................................239
A.2.9 Damping.....................................................................................................................................239
A.2.10 Loss of Echo (LOE)....................................................................................................................240
A.2.10.1 LOE Timer..................................................................................................................................240
A.2.10.2 Fail-safe Behavior ......................................................................................................................240
A.3 Maximum Process Temperature Chart ......................................................................................242
A.4 Process Pressure/Temperature Derating Curves......................................................................243
A.4.1 Pressure Equipment Directive, PED, 97/23/EC.........................................................................244
A.4.2 Horn antenna .............................................................................................................................244
A.4.3 Flanged horn antenna................................................................................................................245
A.4.4 Flanged encapsulated antenna..................................................................................................250
A.4.5 PVDF antenna............................................................................................................................252
A.4.6 Hygienic encapsulated antenna.................................................................................................253
B Appendix B: PROFIBUS PA profile structure ....................................................................................... 257
B.1 PROFIBUS Level Device Design...............................................................................................257
B.2 Block Model................................................................................................................................257
B.2.1 Description of the blocks............................................................................................................258
B.2.1.1 Transducer Block function groups .............................................................................................258
B.2.1.2 How the transducer block works:...............................................................................................259
B.2.1.3 Analog Input Function Blocks 1 and 2 .......................................................................................261
C Appendix C: Communications via PROFIBUS ..................................................................................... 265
C.1 Device configuration ..................................................................................................................265
C.1.1 SIMATIC PDM............................................................................................................................265
C.1.1.1 Electronic Device Description ....................................................................................................265
C.2 Network configuration ................................................................................................................265

Table of contents
SITRANS LR250 (PROFIBUS PA)
8Operating Instructions, 08/2014, A5E32221386-AC
C.2.1 The GSD file.............................................................................................................................. 265
C.3 Bus termination ......................................................................................................................... 266
C.4 Power demands ........................................................................................................................ 266
C.5 PROFIBUS address .................................................................................................................. 266
C.6 Operating as a profile device .................................................................................................... 267
C.6.1 Configuring a new device.......................................................................................................... 267
C.6.2 Configuring PROFIBUS PA with an S7-300/ 400 PLC ............................................................. 267
C.7 Cyclic versus acyclic data ......................................................................................................... 268
C.7.1 Cyclic data................................................................................................................................. 268
C.8 Status byte ................................................................................................................................ 269
C.9 Condensed status ..................................................................................................................... 270
C.10 Diagnostics................................................................................................................................ 272
C.10.1 Diagnosis reply (available cyclically)......................................................................................... 272
C.10.2 Diagnosis object (available cyclically or acyclically) ................................................................. 272
C.10.3 Extended mode diagnosis......................................................................................................... 273
C.10.4 Condensed mode diagnosis ..................................................................................................... 274
C.10.5 Acyclic extended diagnostics (general fault codes) .................................................................. 275
C.10.6 Acyclic data ............................................................................................................................... 278
D Appendix D: Certificates and Support...................................................................................................281
D.1 Certificates ................................................................................................................................ 281
D.2 Technical support...................................................................................................................... 281
13 List of abbreviations .............................................................................................................................283
14 LCD menu structure.............................................................................................................................285
Glossary ..............................................................................................................................................291
Index ...................................................................................................................................................297

SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 9
Introduction
1
1.1
LR250 PA manual usage
Note
This manual applies to the SITRANS LR250 (PROFIBUS PA) only.
Follow these operating instructions for quick, trouble-free installation, and maximum accuracy
and reliability of your device.
We always welcome suggestions and comments about manual content, design, and
accessibility. Please direct your comments to:
Technical publications (mailto:[e-mail])
1.2
Purpose of this documentation
These instructions contain all information required to commission and use the device. It is your
responsibility to 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.
1.3
Document history
The following table notes major changes in the documentation compared to the previous edition.
Edition
Remark
January 2014 •Flanged encapsulated antenna version added.
August 2014 •Hygienic encapsulated antenna version added.

Introduction
1.4 Firmware revision history
SITRANS LR250 (PROFIBUS PA)
10 Operating Instructions, 08/2014, A5E32221386-AC
1.4
Firmware revision history
This history establishes the correlation between the current documentation and the valid
firmware of the device.
The documentation of this edition is applicable for the following firmware:
Firmware
rev.
EDD rev.
Date
Changes
1.00.04 1.00.05 12 Jun 2007 •Initial release.
1.01.00 1.01.00 23 Aug 2007 •EDD a)/SIMATIC PDM: improved rendering of
the echo profile and TVT.
1.01.01 1.01.01 26 Sep 2007 •PNO certification release.
1.01.02 1.01.02 10 Jun 2008 •Maintenance release for firmware and
EDDa)
1.01.02 1.01.03 17 Jun 2008 •The internal EDD revision has been
incremented.
1.02.00 1.02.00 27 May 2009 •Harmonization of menu structures and
parameter names across products.
•Display indicates progress towards first
measurement.
1.02.01 1.02.00 7 June 2010 •Display contrast improvement.
•Antenna type parameter cannot be
modified.
1.02.02 1.02.00 24 May 2011 •Threaded PVDF antenna supported.
1.02.03 1.02.01 31 Oct 2012 •Antenna parameter removed.
•Quickstart on local display enhancements.
a) Electronic Device Description

Introduction
1.5 Designated use
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 11
1.5
Designated use
Use the device to measure process media in accordance with the information in the operating
instructions.
Note
Use in a domestic environment
This is a Class A Group 1 equipment intended for use in industrial areas.
In a domestic environment this device may cause radio interference.
1.6
Checking the consignment
1. Check the packaging and the device for visible damage caused by inappropriate handling
during shipping.
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
Danger of explosion in hazardous areas.
•Do not use damaged or incomplete devices.

Introduction
1.7 Transportation and storage
SITRANS LR250 (PROFIBUS PA)
12 Operating Instructions, 08/2014, A5E32221386-AC
1.7
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.
CAUTION
Insufficient protection during storage
The packaging only provides limited protection against moisture and infiltration.
•Provide additional packaging as necessary.
1.8
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 LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 13
Safety information
2
2.1
Preconditions for safe 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
(Label on product:
yellow
background.)
WARNING: refer to accompanying documents (manual) for
details.
2.1.2
Laws and directives
Observe the test certification, provisions and laws applicable in your country during connection,
assembly and operation.

Safety information
2.1 Preconditions for safe use
SITRANS LR250 (PROFIBUS PA)
14 Operating Instructions, 08/2014, A5E32221386-AC
2.1.3
FCC Conformity
US Installations only: Federal Communications Commission (FCC) rules
WARNING
Improper device modifications
Danger to personnel, system and environment can result from improper modifications to the
device.
•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 A 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 operating instructions, 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 information
2.1 Preconditions for safe use
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 15
2.1.4
Conformity with European directives
The CE marking on the device symbolizes the conformity with the following European directives:
Electromagnetic
compatibility EMC
2004/108/EC
Directive of the European Parliament and of the Council on the
approximation of the laws of the Member States relating to
electromagnetic compatibility and repealing Directive
89/336/EEC.
Low voltage directive LVD
2006/95/EC
Directive of the European Parliament and of the Council on the
harmonisation of the laws of Member States relating to
electrical equipment designed for use within certain voltage
limits.
Atmosphère explosible
ATEX
94/9/EC
Directive of the European Parliament and the Council on the
approximation of the laws of the Member States concerning
equipment and protective systems intended for use in
potentially explosive atmospheres.
Radio and
telecommunications terminal
eq
uipment R&TTE
1999/5/EC
Directive of the European Parliament and of the Council on
radio equipment and telecommunications terminal equipment
and the mutual recognition of their conformity.
The applicable directives can be found in the EC conformity declaration of the specific device.

Safety information
2.2 Improper device modifications
SITRANS LR250 (PROFIBUS PA)
16 Operating Instructions, 08/2014, A5E32221386-AC
2.1.5
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,
radio-frequency, electromagnetic 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 immunity 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 disturbances, 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.
2.2
Improper device modifications
WARNING
Improper device modifications
Danger 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.

Safety information
2.3 Requirements for special applications
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 17
2.3
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 the device is used for research and
development purposes.
2.4
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
Loss of safety of device with type of protection "Intrinsic safety Ex i"
If the device has 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 danger 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.

Safety information
2.4 Use in hazardous areas
SITRANS LR250 (PROFIBUS PA)
18 Operating Instructions, 08/2014, A5E32221386-AC