Siemens Canada Siemens Milltronics Process Instruments LR250 SITRANS LR 250 TANK LEVEL PROBING RADAR User Manual SITRANS LR250 PROFIBUS PA

Siemens Canada Ltd. - Siemens Milltronics Process Instruments SITRANS LR 250 TANK LEVEL PROBING RADAR SITRANS LR250 PROFIBUS PA

User Manual 5

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
Ⓟ 04/2014 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.
indicates that death or severe personal injury
result if proper precautions are not taken.
indicates that death or severe personal injury
result if proper precautions are not taken.
indicates that minor personal injury can result if proper precautions are not taken.
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:
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
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SITRANS LR250 (PROFIBUS PA)
4 Operating 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 ...................................................................................................... 41
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 ................................................................................ 83
7.1.5.1 Echo profile utilities ...................................................................................................................... 84
7.1.5.2 Auto false echo suppression ........................................................................................................ 88
7.1.5.3 Echo setup ................................................................................................................................... 91
7.1.5.4 Maintenance ................................................................................................................................. 91
7.1.5.5 Acknowledge Faults ..................................................................................................................... 93
7.1.5.6 Wear ............................................................................................................................................. 93
7.1.5.7 Simulation .................................................................................................................................... 93
7.1.5.8 Write locking ................................................................................................................................. 96
7.1.5.9 Master reset ................................................................................................................................. 97
7.1.5.10 Factory defaults............................................................................................................................ 97
7.1.5.11 Diagnostics ................................................................................................................................... 98
7.2 Operating via FDT ...................................................................................................................... 105
7.2.1 Device Type Manager (DTM) ..................................................................................................... 105
7.2.2 SITRANS DTM ........................................................................................................................... 105
7.2.3 The device EDD ......................................................................................................................... 106
7.2.4 Configuring a new device via FDT ............................................................................................. 106
8 Parameter reference ........................................................................................................................... 107
8.1 Alphabetical parameter list ......................................................................................................... 167
9 Service and maintenance .................................................................................................................... 173
9.1 Basic safety information ............................................................................................................. 173
9.2 Cleaning ..................................................................................................................................... 173
9.3 Maintenance and repair work ..................................................................................................... 174
9.3.1 Unit repair and excluded liability ................................................................................................ 175
9.3.2 Part replacement ........................................................................................................................ 175
9.4 Disposal ..................................................................................................................................... 177
10 Diagnosing and troubleshooting .......................................................................................................... 179
10.1 Communication troubleshooting ................................................................................................ 179
10.2 Device status icons .................................................................................................................... 180
10.3 General fault codes .................................................................................................................... 181
10.4 Operation troubleshooting .......................................................................................................... 184
11 Technical data .................................................................................................................................... 187
11.1 Power ......................................................................................................................................... 187
11.2 Performance ............................................................................................................................... 187
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6 Operating Instructions, 08/2014, A5E32221386-AC
11.3 Interface .................................................................................................................................... 189
11.4 Mechanical ................................................................................................................................ 189
11.5 Environmental ........................................................................................................................... 192
11.6 Process ..................................................................................................................................... 192
11.7 Approvals .................................................................................................................................. 193
11.8 Programmer (infrared keypad) .................................................................................................. 194
12 Dimension drawings ............................................................................................................................. 195
12.1 Threaded horn antenna............................................................................................................. 195
12.2 Threaded horn antenna with extension ..................................................................................... 198
12.3 Flanged horn antenna ............................................................................................................... 200
12.4 Flanged horn antenna with extension ....................................................................................... 202
12.5 Flanged encapsulated antenna (2"/DN50/50A sizes only) ....................................................... 204
12.6 Flanged encapsulated antenna (3"/DN80/80A sizes and larger) .............................................. 206
12.7 Hygienic encapsulated antenna (2" ISO 2852 sanitary clamp) ................................................ 208
12.8 Hygienic encapsulated antenna (3" ISO 2852 sanitary clamp) ................................................ 209
12.9 Hygienic encapsulated antenna (4" ISO 2852 sanitary clamp) ................................................ 210
12.10 Hygienic encapsulated antenna (DN 50 nozzle/slotted nut to DIN 11851) ............................... 211
12.11 Hygienic encapsulated antenna (DN 80 nozzle/slotted nut to DIN 11851) ............................... 212
12.12 Hygienic encapsulated antenna (DN 100 nozzle/slotted nut to DIN 11851) ............................. 213
12.13 Hygienic encapsulated antenna (DN 50 aseptic slotted nut to DIN 11864-1) .......................... 214
12.14 Hygienic encapsulated antenna (DN 80 aseptic slotted nut to DIN 11864-1) .......................... 215
12.15 Hygienic encapsulated antenna (DN 100 aseptic slotted nut to DIN 11864- 1) ....................... 216
12.16 Hygienic encapsulated antenna (DN 50 aseptic flange to DIN 11864-2) ................................. 217
12.17 Hygienic encapsulated antenna (DN 80 aseptic flange to DIN 11864-2) ................................. 218
12.18 Hygienic encapsulated antenna (DN 100 aseptic flange to DIN 11864-2) ............................... 219
12.19 Hygienic encapsulated antenna (DN 50 aseptic clamp to DIN 11864-3) ................................. 220
12.20 Hygienic encapsulated antenna (DN 80 aseptic clamp to DIN 11864-3) ................................. 222
12.21 Hygienic encapsulated antenna (DN 100 aseptic clamp to DIN 11864-3) ............................... 223
12.22 Hygienic encapsulated antenna (Tuchenhagen Type N).......................................................... 224
12.23 Hygienic encapsulated antenna (Tuchenhagen Type F) .......................................................... 225
12.24 Threaded PVDF antenna .......................................................................................................... 226
12.25 Threaded connection markings ................................................................................................. 227
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 ................................................... 228
12.27 Raised-Face flange per EN 1092-1 for flanged encapsulated antenna..................................... 230
12.28 Flat-Face flange ......................................................................................................................... 233
12.29 Aseptic/hygienic flange DN50, DN80, DN100 for DIN 11864-2 ................................................. 236
12.30 Process connection tag (pressure rated versions) .................................................................... 239
A Appendix A: Technical reference ......................................................................................................... 241
A.1 Principles of operation ............................................................................................................... 241
A.2 Echo processing......................................................................................................................... 242
A.2.1 Process Intelligence ................................................................................................................... 242
A.2.2 Echo Selection ........................................................................................................................... 242
A.2.3 CLEF Range .............................................................................................................................. 245
A.2.4 Echo Threshold .......................................................................................................................... 246
A.2.5 Echo Lock .................................................................................................................................. 246
A.2.6 Auto False Echo Suppression .................................................................................................... 246
A.2.7 Measurement Range ................................................................................................................. 248
A.2.8 Measurement Response ............................................................................................................ 249
A.2.9 Damping ..................................................................................................................................... 249
A.2.10 Loss of Echo (LOE) .................................................................................................................... 250
A.2.10.1 LOE Timer .................................................................................................................................. 250
A.2.10.2 Fail-safe Behavior ...................................................................................................................... 250
A.3 Maximum Process Temperature Chart ...................................................................................... 251
A.4 Process Pressure/Temperature Derating Curves ...................................................................... 253
A.4.1 Horn antenna ............................................................................................................................. 254
A.4.2 Flanged horn antenna ................................................................................................................ 255
A.4.3 Flanged encapsulated antenna .................................................................................................. 260
A.4.4 PVDF antenna............................................................................................................................ 262
A.4.5 Hygienic encapsulated antenna ................................................................................................. 263
B Appendix B: PROFIBUS PA profile structure ....................................................................................... 266
B.1 PROFIBUS Level Device Design ............................................................................................... 266
B.2 Block Model ................................................................................................................................ 266
B.2.1 Description of the blocks ............................................................................................................ 267
B.2.1.1 Transducer Block function groups ............................................................................................. 267
B.2.1.2 How the transducer block works: ............................................................................................... 268
B.2.1.3 Analog Input Function Blocks 1 and 2 ....................................................................................... 270
C Appendix C: Communications via PROFIBUS ..................................................................................... 275
C.1 Device configuration .................................................................................................................. 275
C.1.1 SIMATIC PDM ............................................................................................................................ 275
C.1.1.1 Electronic Device Description .................................................................................................... 275
C.2 Network configuration ................................................................................................................ 275
C.2.1 The GSD file ............................................................................................................................... 275
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SITRANS LR250 (PROFIBUS PA)
8 Operating Instructions, 08/2014, A5E32221386-AC
C.3 Bus termination ......................................................................................................................... 276
C.4 Power demands ........................................................................................................................ 276
C.5 PROFIBUS address .................................................................................................................. 276
C.6 Operating as a profile device .................................................................................................... 277
C.6.1 Configuring a new device .......................................................................................................... 277
C.6.2 Configuring PROFIBUS PA with an S7-300/ 400 PLC ............................................................. 278
C.7 Cyclic versus acyclic data ......................................................................................................... 278
C.7.1 Cyclic data ................................................................................................................................. 279
C.8 Status byte ................................................................................................................................ 280
C.9 Condensed status ..................................................................................................................... 281
C.10 Diagnostics ................................................................................................................................ 283
C.10.1 Diagnosis reply (available cyclically) ......................................................................................... 283
C.10.2 Diagnosis object (available cyclically or acyclically) ................................................................. 284
C.10.3 Extended mode diagnosis ......................................................................................................... 284
C.10.4 Condensed mode diagnosis ..................................................................................................... 285
C.10.5 Acyclic extended diagnostics (general fault codes) .................................................................. 286
C.10.6 Acyclic data ............................................................................................................................... 289
D Appendix D: Certificates and Support ................................................................................................... 291
D.1 Certificates ................................................................................................................................ 291
D.2 Technical support ...................................................................................................................... 291
13 List of abbreviations ............................................................................................................................. 293
14 LCD menu structure ............................................................................................................................. 295
Glossary .............................................................................................................................................. 301
Index ................................................................................................................................................... 307
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:techpubs.smpi@siemens.com)
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
equipment 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
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 19
Description
3
3.1
SITRANS LR250 overview
WARNING
Loss of protection
Danger to personnel, system and environment can result from improper use of the device.
• SITRANS LR250 is to be used only in the manner outlined in this manual, otherwise
protection provided by the device may be impaired.
SITRANS LR250 is a 2-wire 25 GHz pulse radar level transmitter for continuous monitoring of
liquids and slurries in storage vessels including high pressure and high temperature, to a range
of 20 meters (66 feet). It is ideal for small vessels, material such as chemicals, food, beverages,
solvents (including those of corrosive or aggressive nature), and low dielectric media.
The device consists of an electronic circuit coupled to an antenna and either a threaded or
flange type process connection.
This device supports PROFIBUS PA communication protocol, and SIMATIC PDM software.
Signals are processed using Process Intelligence which has been field-proven in over 1,000,000
applications worldwide (ultrasonic and radar). This device supports acyclic communications from
both a PROFIBUS Class I and Class II master.
Description
3.2 Programming
SITRANS LR250 (PROFIBUS PA)
20 Operating Instructions, 08/2014, A5E32221386-AC
3.2
Programming
This device is very easy to install and configure via a graphical local user interface (LUI). You
can modify the built in parameters either locally via the Siemens infrared handheld programmer,
or from a remote location using one of the following options:
● SIMATIC PDM
● FDT/DTM platform (such as PACTware™ or FieldCare)
3.3
Applications
● liquids and slurries
● bulk storage vessels
● simple process vessels
● corrosive and aggressive
● hygienic/sanitary
3.4
Approvals and certificates
Note
For further details see Approvals (Page 193).
SITRANS LR250 is available with approvals for General purpose, sanitary or hygienic and for
hazardous areas. In all cases, check the nameplate on your device, and confirm the approval
rating.
Process Connections
A wide range of process connections and antenna options are available to suit virtually any
vessel configuration.
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 21
Installing/mounting
4
4.1
Basic safety information
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.
WARNING
Unsuitable connecting parts
Danger of injury or poisoning.
In case of improper mounting hot, toxic and corrosive process media could be released at
the connections.
• Ensure that connecting parts (such as flange gaskets and bolts) are suitable for
connection and process media.
WARNING
Exceeded maximum ambient or process media temperature
Danger of explosion in hazardous areas.
Device damage.
• Make sure that the maximum permissible ambient and process media temperatures of
the device are not exceeded.
WARNING
Open cable inlet or incorrect cable gland
Danger of explosion in hazardous areas.
• Close the cable inlets for the electrical connections. Only use cable glands or plugs
which are approved for the relevant type of protection.
Installing/mounting
4.1 Basic safety information
SITRANS LR250 (PROFIBUS PA)
22 Operating Instructions, 08/2014, A5E32221386-AC
WARNING
Incorrect conduit system
Danger of explosion in hazardous areas as result of open cable inlet or incorrect conduit
system.
• In the case of a conduit system, mount a spark barrier at a defined distance from the
device input. Observe national regulations and the requirements stated in the relevant
approvals.
4.1.1
Pressure applications
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.
WARNING
Pressure applications
Danger to personnel, system and environment can result from improper installation.
• Improper installation may result in loss of process pressure.
WARNING
Exceeded maximum permissible operating pressure
Danger of injury or poisoning.
The maximum permissible operating pressure depends on the device version. The device
can be damaged if the operating pressure is exceeded. Hot, toxic and corrosive process
media could be released.
• Make sure that the device is suitable for the maximum permissible operating pressure of
your system.
Installing/mounting
4.1 Basic safety information
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 23
Note
• The process connection tag shall remain with the process 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 device package is replaced, the process connection tag shall be transferred to
the replacement unit.
• SITRANS LR250 units are hydrostatically tested, meeting or exceeding the requirement
of the ASME Boiler and Pressure Vessel Code and the European Pressure Equipment
Directive.
Note
• The serial numbers stamped in each process connection body, (flange, threaded, or
sanitary), 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.
4.1.1.1
Pressure Equipment Directive, PED, 97/23/EC
Siemens Level Transmitters with flanged, threaded, or sanitary clamp type process mounts have
no pressure-bearing housing of their own and, therefore, do not come under the Pressure
Equipment Directive as pressure or safety accessories (see EU Commission Guideline 1/8 and
1/20).
Installing/mounting
4.2 Installation location requirements
SITRANS LR250 (PROFIBUS PA)
24 Operating Instructions, 08/2014, A5E32221386-AC
4.2
Installation location requirements
WARNING
Aggressive atmospheres
Danger to personnel, system and environment can result from unsuitable environment.
• Provide an environment suitable to the housing rating and materials of construction.
CAUTION
Direct sunlight
Device damage.
The device can overheat or materials become brittle due to UV exposure.
• Protect the device from direct sunlight.
• Make sure that the maximum permissible ambient temperature is not exceeded. Refer
to the information in Chapter "Technical data".
Installing/mounting
4.2 Installation location requirements
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 25
①
Ambient temperature
②
Device nameplate
③
Device tag
④
Process temperature (at process connection)
⑤
Process connection tag (contains process connection related information)
Antenna
①
③
Horn -40 to +80 °C
(-40 to +176 °F)
with FKM O-ring:-40 to +200 °C (-40 to
392 °F)
with FFKM O-ring:-20 to +200 °C (-4 to
+392 °F)
PVDF -40 to +80 °C
(-40 to +176 °F)
-40 to +80 °C
(-40 to +176 °F)
Flanged encapsulated -40 to +80 °C
(-40 to +176 °F)
-40 to +170 °C
(-40 to +338 °F)
Hygienic encapsulated -40 to +80 °C
(-40 to +176 °F)
-40 to +170 °C
(-40 to +338 °F)
with FKM seals used on process connection:
-20 to +170 °C (-4 to +338 °F)
with EPDM seals used on process
connection:
-40 to +120 °C (-40 to +248 °F)
Note
Details about the process connection, process temperature and materials are laser etched
into the body of the flanged and hygienic versions. All other SITRANS LR250 versions have
details listed on a tag.
Installing/mounting
4.3 Proper mounting
SITRANS LR250 (PROFIBUS PA)
26 Operating Instructions, 08/2014, A5E32221386-AC
4.3
Proper mounting
Note
• Correct location is key to a successful application.
• Avoid reflective interference from vessel walls and obstructions by following guidelines in
this chapter.
NOTICE
Incorrect mounting
The device can be damaged, destroyed, or its functionality impaired through improper
mounting.
• Before installing ensure there is no visible damage to the device.
• Make sure that process connectors are clean, and suitable gaskets and glands are
used.
• Mount the device using suitable tools. Refer to the information in Installation instructions
(Page 34) for installation torque requirements.
Note
• On devices with a removable head, there is no limit to the number of times a device can
be rotated without damage.
• When mounting, orient the front or back of the device towards the closest vessel wall or
obstruction.
• Do not rotate the enclosure after programming and vessel calibration, otherwise an error
may occur, caused by a polarity shift of the transmit pulse.
Installing/mounting
4.3 Proper mounting
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 27
4.3.1
Nozzle design
Threaded PVDF antenna
Stainless steel horn antenna
Flanged encapsulated antenna (FEA)
Hygienic encapsulated antenna (HEA)
① Minimum clearance: 10 mm (0.4")
② Minimum diameter: 50 mm (2")
③ Maximum nozzle length
④ Maximum length/diameter ratio 1:1
● The end of the antenna must protrude a minimum of 10 mm (0.4") to avoid false echoes
being reflected from the nozzle1).
● Minimum recommended nozzle diameter for the threaded PVDF antenna is 50 mm (2").
● An antenna extension (100 mm/3.93") is available for the horn antenna only.
● The maximum nozzle length for the FEA is 500 mm (19.68") when the nozzle diameter is
DN150 (6"). Only shorter lengths are recommended for smaller diameters.
● When installing the SITRANS LR250 with hygienic process connection, it is good hygienic
practice to install the antenna in a nozzle that has a maximum length/diameter ratio of 1:1.
For example, 2" (DN50) diameter nozzle should be no longer than 2" (50 mm).
● When removing any sanitary/hygienic clamp version of the HEA to clean the lens, ensure it is
re-installed in the exact position it was removed from, to avoid re-commissioning the device.
1) Not applicable for FEA or HEA
Installing/mounting
4.3 Proper mounting
SITRANS LR250 (PROFIBUS PA)
28 Operating Instructions, 08/2014, A5E32221386-AC
4.3.2
Nozzle location
● Avoid central locations on tall, narrow vessels
● Nozzle must be vertical and clear of imperfections
Preferred
Undesirable
Beam angle
Note
• Beam width depends on antenna size and is approximate: see below.
• For details on avoiding false echoes, see Auto False Echo Suppression.
● Beam angle is the width of the cone where the energy density is half of the peak energy
density.
● The peak energy density is directly in front of and in line with the antenna.
● There is a signal transmitted outside the beam angle, therefore false targets may be
detected.
Installing/mounting
4.3 Proper mounting
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 29
Horn antenna
Flanged encapsulated antenna
Threaded PVDF antenna
Hygienic encapsulated antenna
① Emission cone
② Beam angle
Installing/mounting
4.3 Proper mounting
SITRANS LR250 (PROFIBUS PA)
30 Operating Instructions, 08/2014, A5E32221386-AC
Emission cone type and beam angle
Antenna type
Antenna size
Beam angle
Horn 1.5" 19°
2" 15°
3" 10°
4" 8°
Threaded PVDF 19°
Process connection
size
Process connection type
Flanged encapsulated 2" Class 150 ASME B16.5 12.8°
3, 4, 6" Class 150 ASME B16.5 9.6°
50A 10K JIS B 2220 12.8°
80A/100A/150A 10K JIS B 2220 9.6°
DN50 PN10/16 EN1092-1 12.8°
DN80/DN100/DN15
0
PN10/16 EN1092-1 9.6°
Hygienic encapsulated 2" Sanitary Clamp according to
ISO 2852
12.8°
3, 4" 9.6°
DN50 Aseptic/Hygienic nozzle/slotted
nut according to DIN 11864-1
[Form A]
12.8°
DN80/DN100 9.6°
DN50 Aseptic/Hygienic flanged
according to DIN 11864-2
[Form A]
12.8°
DN80/DN100 9.6°
DN50 Aseptic/Hygienic Clamp
according to DIN 11864-
3 [Form A]
12.8°
DN80/DN100 9.6°
DN50 Hygienic nozzle/slotted nut
according to DIN 11851
12.8°
DN80/DN100 9.6°
Type F (50 mm)
and Type N
(68 mm)
Tuchenhagen Varivent 12.8°
Emission cone
● Keep emission cone free of interference from obstructions such as ladders, pipes, I-beams,
or filling streams.
Access for programming
● Provide easy access for viewing the display and programming via the handheld programmer.
Installing/mounting
4.3 Proper mounting
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 31
4.3.3
Orientation in a vessel with obstructions
Polarization reference point
For best results on a vessel with obstructions, or a stillpipe with openings, orient the front or
back of the device toward the obstructions. For an illustration, see Device orientation (Page 33).
①
Polarization axis
②
Polarization reference point
③
Display
Installing/mounting
4.3 Proper mounting
SITRANS LR250 (PROFIBUS PA)
32 Operating Instructions, 08/2014, A5E32221386-AC
4.3.4
Mounting on a Stillpipe or Bypass Pipe
A stillpipe or bypass pipe is used for products with a low dK, or when vortex or extremely
turbulent conditions exist. It can also be used to provide optimum signal conditions on foaming
materials. See Dielectric constant of material measured in Performance (Page 187) for more
information.
● The pipe diameter must be matched with the antenna size. Use the largest antenna size that
will fit the stillpipe/bypass pipe1). See Threaded Horn dimensions (Page 195), Raised-Face
Flange per EN 1092-1 (Page 230), Flanged encapsulated dimensions or Hygienic
encapsulated dimensions.
● One continuous length of metallic pipe is preferred, without joints.
● Any false reflections created by joints/welds/imperfections will lead to inaccuracies of the
measurement.
● Joints (if unavoidable) must be machined to ± 0.25 mm (± 0.010") and must have welded
connecting sleeve on the outside.
● If using any hygienic process connections in conjunction with a stillpipe/bypass, please
ensure that the antenna/lens are cleanable in accordance with the applicable approval.
1) Mounting in a pipe greater than 100 mm (4") can cause large errors, and therefore is not
recommended.
Suitable pipe diameters: Horn antenna 40 to 100 mm (1.5 to 4")
PVDF antenna 50 mm (2") only
Flanged encapsulated antenna 50 to 100 mm (2 to 4")
Hygienic encapsulated antenna 50 to 100 mm (2 to 4")
Not recommended: > 100 mm (4")
Bypass vent: Required at the upper end of the bypass 1)
1) To equalize pressure and keep the liquid level in the bypass constant with the liquid level in the
vessel.
Installing/mounting
4.3 Proper mounting
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 33
4.3.5
Device orientation
Bypass pipe installation
Stillpipe installation
① Vent ① Align front or back of device with stillpipe slots1)
② Align front or back of device with
vents1)
② Slots
1) Horn antenna version shown as example
Installing/mounting
4.4 Installation instructions
SITRANS LR250 (PROFIBUS PA)
34 Operating Instructions, 08/2014, A5E32221386-AC
4.4
Installation instructions
WARNING
Pressure applications
Danger to personnel, system and environment can result from improper installation.
• Improper installation may result in loss of process pressure.
WARNING
Improper installation
Danger to personnel, system and environment can result from improper installation.
• Installation shall only be performed by qualified personnel and in accordance with local
governing regulations.
NOTICE
Device handling
Damage to device may result from improper handling.
• Handle the device using the enclosure, not the process connection or tag, to avoid
damage.
• Take special care when handling the threaded PVDF and Hygienic or Flanged
encapsulated antennas. Any damage to the antenna surface, particularly to the tip/lens,
could affect performance. (For example, do not sit device on its lens antenna.)
Note
• For European Union and member countries, installation must be according to
ETSI EN 302372.
• Refer to the device nameplate for approval information.
Note
The outer part of the lens on the flanged encapsulated antenna version may not appear to
lie
flush before installation and this is normal. This will flatten after installation and will not
impact the performance of the device.
Installing/mounting
4.4 Installation instructions
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 35
WARNING
Pressure applications
Danger of injury or poisoning.
It will be necessary to use PTFE tape or other appropriate thread sealing compound, and to
tighten the process connection beyond hand-tight. (The maximum recommended torque for
Threaded versions is 40 N-m (30 ft.lbs.) See Flanged versions (Page 36) for FEA
recommended torque values.)
Note
• On devices with a removable head, there is no limit to the number of times a device can
be rotated without damage.
• When mounting, orient the front or back of the device towards the closest vessel wall or
obstruction.
• Do not rotate the enclosure after programming and vessel calibration, otherwise an error
may occur, caused by a polarity shift of the transmit pulse.
4.4.1
Threaded versions
WARNING
Pressure applications
Danger of injury or poisoning.
It may be necessary to use PTFE tape or other appropriate thread sealing compound, and
to tighten the process connection beyond hand-tight. (The maximum recommended torque
for Threaded versions is 40 N-m (30 ft.lbs.)
1. Before inserting the device into its mounting connection, check to ensure the threads are
matching, to avoid damaging them.
2. Simply screw the device into the process connection, and hand tighten, or use a wrench.
Installing/mounting
4.4 Installation instructions
SITRANS LR250 (PROFIBUS PA)
36 Operating Instructions, 08/2014, A5E32221386-AC
4.4.2
Flanged versions
NOTICE
Improper materials
The user is responsible for the selection of bolting and gasket materials (except for Flanged
encapsulated antenna) which will fall within the limits of the process connection and its
intended use, and which are suitable for the service conditions.
Special Instructions for Flanged encapsulated antenna only
Note
• Use spring washers
• Lens assembly acts as integral gasket, no other required
• Use recommended torque values for tightening bolts
Flange bolting: recommended torque
Pressure class
Nominal pipe size
(NPS)
Number of bolts
Recommended torque
(Nm)
ASME B16.5, Class
150
2" 4 30 – 50
3" 50 – 70
4" 8 40 – 60
6" 70 – 90
EN1092-1, PN16 /
JIS B 2220, 10K
DN50/50A 4 30 – 50
DN80/80A 8
DN100/100A
DN150/150A 60 – 80
Installing/mounting
4.4 Installation instructions
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 37
Flange bolting instructions:
1. Use cross-pattern sequence as shown.
2. Check uniformity of the flange gap.
3. Apply adjustments by selective tightening if required.
4. Torque incrementally until desired value is reached.
5. Check/re-torque after 4 to 6 hours.
Recommendations for flange bolting:
● Check bolts periodically, re-torque as required.
● Use new lens, O-ring and spring washers after removal from installation.
For instructions on replacing the lens, see Part replacement (Page 175).
See Flanged Horn with extension (Page 200), Raised-Face Flange per EN 1092-1 (Page 230),
Flat-Face Flange (Page 233), and Flanged encapsulated antenna (3"/DN80/80A sizes and
larger) (Page 206) for dimensions.
Installing/mounting
4.4 Installation instructions
SITRANS LR250 (PROFIBUS PA)
38 Operating Instructions, 08/2014, A5E32221386-AC
4.4.3
Hygienic versions
WARNING
Loss of sanitary approvals
Loss of sanitary approvals can result from improper installation/mounting.
• Take special care when installing in hygienic or sanitary applications. Comply with
installation/mounting guidelines to ensure cleanliness and the ability to keep the wetted
parts in a position to be readily cleanable. (See relevant EHEDG/3A documentation - not
supplied).
NOTICE
Loss of sanitary approvals
• For 3-A Sanitary Approved device installation where the customer tank process
connection exists, a leak detection port of minimum 2.4 mm diameter must be provided
at the lowest point in the process connection where leakage can occur.
• If leakage is detected at any time while the device is installed, then the device process
connection parts must be disassembled and thoroughly cleaned prior to gasket
replacement and reassembly.
Note
• For Hygienic encapsulated antenna, the lens acts as a gasket/seal and should be used in
conjunction with a cleanable seal as required by the specific process connections (for
example, DIN 11864-3).
Hygienic encapsulated antenna leak detection port
① Orientation mark for leak detection port
② Leak detection port
Installing/mounting
4.5 Disassembly
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 39
4.5
Disassembly
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.
WARNING
Incorrect disassembly
The following dangers may result through incorrect disassembly:
- Injury through electric shock
- Danger through emerging media when connected to the process
- Danger 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 dangerous 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.
Installing/mounting
4.5 Disassembly
SITRANS LR250 (PROFIBUS PA)
40 Operating Instructions, 08/2014, A5E32221386-AC
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 41
Connecting
5
5.1
Basic safety information
NOTICE
Condensation in the device
Damage to device through formation of condensation if the temperature difference between
transportation or storage and the mounting location exceeds 20 °C (68°F).
• Before taking the device into operation let the device adapt for several hours in the new
environment.
WARNING
Missing PE/ground connection
Danger of electric shock.
Depending on the device version, connect the power supply as follows:
•
Power plug
: Ensure that the used socket has a PE/ground conductor connection. Check
that the PE/ground conductor connection of the socket and power plug match each
other.
•
Connecting terminals
: Connect the terminals according to the terminal connection
diagram. First connect the PE/ground conductor.
5.2
Connecting SITRANS LR250
WARNING
Incorrect connection to power source
Danger to personnel, system and environment can result from improper power connection.
• The DC input terminals shall be supplied from a source providing electrical isolation
between the input and output, in order to meet the applicable safety requirements of
IEC 61010-1.
• All field wiring must have insulation suitable for rated voltages.
Connecting
5.2 Connecting SITRANS LR250
SITRANS LR250 (PROFIBUS PA)
42 Operating Instructions, 08/2014, A5E32221386-AC
WARNING
Loss of protection
Loss of approvals can result from improper installation.
• Check the nameplate on your device, to verify the approval rating.
• Use appropriate conduit seals to maintain IP or NEMA rating.
• See Wiring setups for hazardous area installations (Page 45).
NOTICE
Improper cables and conduit
• Separate cables and conduits may be required to conform to standard instrumentation
wiring practices or electrical codes.
Connecting
5.2 Connecting SITRANS LR250
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 43
① Use a 2 mm Allen key to loosen the lid-lock set screw c) ④ Cable shield
② Plug (IP68) ⑤ Ground terminal
③ Optional cable glanda) b)(or NPT cable entry)b)
a)May be shipped with the device.
b)If cable is routed through conduit, use only approved suitable-size hubs for waterproof
applications.
c)Not applicable to 3-A Sanitary approved device.
Wiring instructions
1. Strip the cable jacket for approximately 70 mm (2.75") from the end of the cable, and thread
the wires through the gland. (If cable is routed through conduit, use only approved suitable-
size hubs for waterproof applications.)
2. Connect the wires to the terminals as shown: SITRANS LR250 (PROFIBUS PA) is not
polarity sensitive.
3. Ground the device according to local regulations.
4. Tighten the gland to form a good seal.
5. Close the lid and secure the locking screw before programming and device configuration.
Note
Lid-lock set screw not applicable to 3-A Sanitary approved device.
Connecting
5.2 Connecting SITRANS LR250
SITRANS LR250 (PROFIBUS PA)
44 Operating Instructions, 08/2014, A5E32221386-AC
Note
• PROFIBUS PA cable shield must be terminated at both ends of the cable for it to work
properly.
• If a Weidmüller or other current limiting junction box is connected to this device, please
ensure that the current limit is set to 40 mA or higher.
• Please refer to the PROFIBUS PA User and Installation Guidelines (order number 2.092)
for information on installing PROFIBUS devices at:
PROFIBUS PA (http://www.profibus.com/)
Basic PLC configuration with PROFIBUS PA
①
Active PLC
④
DP/PA coupler
②
PROFIBUS DP
⑤
PROFIBUS PA
③
PC/laptop
⑥
SITRANS LR250 (PROFIBUS PA)
Connecting
5.3 Wiring setups for hazardous area installations
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 45
5.3
Wiring setups for hazardous area installations
There are three wiring options for hazardous area installations:
● Intrinsically safe wiring (Page 46)
● Non-sparking wiring (Page 49)
● Non-incendive wiring (US/Canada only) (Page 49)
In all cases, check the nameplate on your device, confirm the approval rating, and perform
installation and wiring according to your local safety codes.
PLC configuration with PROFIBUS PA for hazardous areas
①
PLC (active)
②
PC/laptop
③
Ex ia type DP/PA coupler
④
Ex ia device
Connecting
5.3 Wiring setups for hazardous area installations
SITRANS LR250 (PROFIBUS PA)
46 Operating Instructions, 08/2014, A5E32221386-AC
5.3.1
Intrinsically safe wiring
Device nameplate (ATEX/IECEx/INMETRO/RCM)
①
ATEX certificate
The ATEX and INMETRO certificates listed on the nameplate can be downloaded from our
website:
Product page (http://www.siemens.com/LR250)
Go to
Support > Approvals / Certificates.
The IECEx certificate listed on the nameplate can be viewed on the IECEx website. Go to:
IECEx (http://iecex.iec.ch/)
Click on
Certified Equipment
and enter the certificate number
IECEx
SIR 05.0031X.
Connecting
5.3 Wiring setups for hazardous area installations
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 47
5.3.1.1
Intrinsically safe wiring (FM/CSA)
Device nameplate (FM/CSA)
①
Connection drawing number
The FM/CSA Intrinsically Safe connection drawing number 23650675 can be downloaded from
our website at:
Product page (http://www.siemens.com/LR250)
Go to
Support > Installation Drawings > Level Measurement > SITRANS LR250.
5.3.1.2
Intrinsically safe wiring (notes)
● For wiring requirements: follow local regulations.
● Approved dust-tight and water-tight conduit seals are required for outdoor NEMA 4X / type 4X
/ NEMA 6, IP67, IP68 locations.
● Refer to Instructions specific to hazardous area installations (Page 50).
Entity concept:
The Entity Concept allows interconnection of intrinsically safe apparatus to associated apparatus
not specifically examined in such combination. The criteria for interconnection is that the voltage
and current which intrinsically safe apparatus can receive and remain intrinsically safe,
considering faults, must be equal to or greater than the output voltage (Uo) and output current
(Io) levels which can be delivered by the associated apparatus, considering faults and applicable
factors. In addition, the maximum unprotected capacitance (Ci) and Inductance (Li) of the
intrinsically safe apparatus, including interconnecting wiring, must be equal to or less than the
capacitance and inductance which can be safely connected to associated apparatus.
Under the entity evaluation concept, SITRANS LR250 has the following characteristics:
(input voltage) Ui = 24 V
(input current) Ii = 250 mA
(input power) Pi = 1.2 W
(internal capacitance) Ci = 0
(internal inductance) Li = 0
Connecting
5.3 Wiring setups for hazardous area installations
SITRANS LR250 (PROFIBUS PA)
48 Operating Instructions, 08/2014, A5E32221386-AC
FISCO Concept
Note
For complete details and instructions regarding the FISCO Concept The FM/CSA
connection
drawing number A5E02358161 can be downloaded from our website at:
Product page (http://www.siemens.com/LR250)
Go to
Support
>
Installation Drawings
>
Level Measurement
>
SITRANS LR250
.
The FISCO Concept allows interconnection of intrinsically safe apparatus to associated
apparatus not specifically examined in such combination. The criteria for interconnection is that
the voltage (Ui or Vmax), the current (Ii, or Imax) and the power (Pi, or Pmax) which intrinsically
safe apparatus can receive and remain intrinsically safe, considering faults, must be equal to or
greater than the voltage (Uo or Voc or Vi), the current (lo or Isc or li), and the power (Po or
Pmax) levels which can be delivered by the associated apparatus, considering faults and
applicable factors. In addition, the maximum unprotected capacitance (Ci) and inductance (Li) of
each apparatus (other than the termination) connected to the fieldbus must be less than or equal
to 5 nF and 10 μH respectively.
In each segment only one active device, normally the associated apparatus, is allowed to
provide the necessary energy for the fieldbus system. The allowed voltage Uo (or Voc or Vt) of
the associated apparatus is limited to the range of 14V dc to 24V dc. All other equipment
connected to the bus cable has to be passive, meaning that they are not allowed to provide
energy to the system, except for a leakage current of 50 μA for each connected device.
Separately powered equipment needs a galvanic isolation to assure that the Intrinsically Safe
fieldbus circuit remains passive.
Under the FISCO evaluation concept, SITRANS LR250 has the following characteristics:
(input voltage) Ui = 17.5 V
(input current) Ii = 380 mA
(input power) Pi = 5.32 W
(internal capacitance) Ci = 0
(internal inductance) Li = 0
Connecting
5.4 Instructions specific to hazardous area installations
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 49
5.3.2
Non-sparking wiring
①
ATEX certificate
The ATEX certificate listed on the nameplate can be downloaded from our website:
Product page (http://www.siemens.com/LR250)
5.3.3
Non-incendive wiring (US/Canada only)
FM/CSA Class 1, Div 2 connection drawing number 23650673 can be downloaded from our
website:
Product page (http://www.siemens.com/LR250)
Go to
Support > Installation Drawings > Level Measurement > SITRANS LR250.
● For wiring requirements: follow local regulations.
● Approved dust-tight and water-tight conduit seals are required for outdoor NEMA 4X / type 4X
/ NEMA 6, IP67, IP68 locations.
● Refer to Instructions specific to hazardous area installations (Page 50).
Connecting
5.4 Instructions specific to hazardous area installations
SITRANS LR250 (PROFIBUS PA)
50 Operating Instructions, 08/2014, A5E32221386-AC
5.4
Instructions specific to hazardous area installations
5.4.1
(Reference European ATEX Directive 94/9/EC, Annex II, 1/0/6)
The following instructions apply to equipment covered by certificate number SIRA
06ATEX2359X and SIRA 09ATEX4154X:
1. For use and assembly, refer to the main instructions.
2. The equipment is certified for use as Category 1GD equipment per SIRA 06ATEX2359X, and
Category 3G equipment per SIRA 09ATEX4154X.
3. The equipment may be used with flammable gases and vapors with apparatus group IIC, IIB
and IIA and temperature classes T1, T2, T3 andT4.
4. The equipment has a degree of ingress protection of IP67 and a temperature class of
T100 oC and may be used with flammable dusts.
5. The equipment is certified for use in an ambient temperature range of –40 oC to +80 oC.
6. The equipment has not been assessed as a safety related device (as referred to by Directive
94/9/EC Annex II, clause 1.5).
7. Installation and inspection of this equipment shall be carried out by suitably trained personnel
in accordance with the applicable code of practice (EN 60079-14 and EN 60079-17 in
Europe).
8. The equipment is non-repairable.
9. The certificate numbers have an ’X’ suffix, which indicates that special conditions for safe use
apply. Those installing or inspecting this equipment must have access to the certificates.
10.If the equipment is likely to come into contact with aggressive substances, then it is the
responsibility of the user to take suitable precautions that prevent it from being adversely
affected, thus ensuring that the type of protection is not compromised.
– Aggressive substances: e.g. acidic liquids or gases that may attack metals, or solvents
that may affect polymeric materials.
– Suitable precautions: e.g. establishing from the material’s data sheet that it is resistant to
specific chemicals.
Connecting
5.4 Instructions specific to hazardous area installations
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 51
Special conditions for safe use (denoted by X after the certificate number)
● Parts of the enclosure may be non-conducting and may generate an ignition-capable level of
electrostatic charge under certain extreme conditions. The user should ensure that the
equipment is not installed in a location where it may be subjected to external conditions (such
as high-pressure steam), which might cause a build-up of electrostatic charge on non-
conducting surfaces.
● Aluminium, magnesium, titanium or zirconium may be used at the accessible surface of the
equipment. In the event of rare incidents, ignition sources due to impact and friction sparks
could occur. This shall be considered when the SITRANS LR250 PROFIBUS PA is being
installed in locations that specifically require Equipment Protection level
Ga or Da.
● The equipment shall be infallibly bonded according to the relevant code of practice.
● The end use must ensure that the explosion protection and ingress protection of IP64 is
maintained at each entry to the enclosure by use of a blanking element or cable entry device
that meets the requirements of the protection concepts type 'n' or increased safety 'e' or
flameproof 'd'.
Connecting
5.4 Instructions specific to hazardous area installations
SITRANS LR250 (PROFIBUS PA)
52 Operating Instructions, 08/2014, A5E32221386-AC
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 53
Commissioning
6
6.1
Basic safety information
WARNING
Loss of explosion protection
Danger of explosion when device is not properly commissioned
If opening device
• Isolate from power.
- or -
• Ensure that the atmosphere is explosion-free (hot work permit).
Ensure device is properly closed before returning to operation.
6.2
Operating via the handheld programmer
The handheld programmer used with this device contains lithium batteries that are non-
replaceable.
Lithium batteries are primary power sources with high energy content designed to provide the
highest possible degree of safety.
WARNING
Potential hazard
Lithium batteries may present a potential hazard if they are abused electrically or
mechanically. Observe the following precautions when handling and using lithium batteries:
• Do not short-circuit, recharge or connect with false polarity.
• Do not expose to temperatures beyond the specified temperature range.
• Do not incinerate.
• Do not crush, puncture or open cells or disassemble.
• Do not weld or solder to the battery’s body.
• Do not expose contents to water.
Commissioning
6.2 Operating via the handheld programmer
SITRANS LR250 (PROFIBUS PA)
54 Operating Instructions, 08/2014, A5E32221386-AC
6.2.1
Power up
Power up the device. A transition screen showing first the Siemens logo and then the current
firmware revision is displayed while the first measurement is being processed.
Press
Mode
to toggle between Measurement and Program mode.
6.2.2
Handheld programmer functions
The radar device carries out its level measurement tasks according to settings made via
parameters. The settings can be modified locally via the Local User Interface (LUI) which
consists of an LCD display and a handheld programmer.
A Quick Start Wizard provides an easy step-by-step procedure to configure the device for a
simple application. Access the wizards:
● locally [see Quick Start Wizard via the handheld programmer (Page 63)]
● or from a remote location [see Quick Start Wizard via SIMATIC PDM (Page 78)]
For more complex setups see Application Examples (Page 67), and for the complete range of
parameters see Parameter Reference (Page 107).
Commissioning
6.2 Operating via the handheld programmer
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 55
6.2.2.1
The LCD display
Measurement mode display
Normal operation
①
Toggle indicator a) for analog input function
blocks (AIFB 1 or AIFB 2)
⑤
Bar graph indicates level
②
Identifies which AIFB is source of
displayed value
⑥
Secondary region indicates on request b)
electronics
temperature, echo confidence, or distance
③
Measured value (level, space, distance, or
volume)
⑦
Text area displays status messages
④
Units
⑧
Device status indicator, see Device status
icons (Page 180)
a) Press
UP
and
DOWN
arrow to switch.
b) In response to a key press request. For details, see Handheld programmer (Part No.
7ML1930-1BK) (Page 57) for key functions in Measurement mode.
Fault present
①
Device status indicator, see Device status icons (Page 180)
②
Text area displays a fault code and a status message
Commissioning
6.2 Operating via the handheld programmer
SITRANS LR250 (PROFIBUS PA)
56 Operating Instructions, 08/2014, A5E32221386-AC
Program mode display
Navigation view
①
Item band
④
Current item number
②
Menu bar
⑤
Current item
③
Current menu
● A visible menu bar indicates the menu list is too long to display all items.
● A band halfway down the menu bar indicates the current item is halfway down the list.
● The depth and relative position of the item band on the menu bar indicates the length of the
menu list, and approximate position of the current item in the list.
● A deeper band indicates fewer items.
Parameter view
Edit view
① Parameter name ② Parameter number ③ Parameter value/selection
Commissioning
6.2 Operating via the handheld programmer
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 57
6.2.2.2
Handheld programmer (Part No. 7ML1930-1BK)
The programmer is ordered separately.
Key functions in measurement mode
Key
Function
Result
Updates internal enclosure temperature
reading.
New value is displayed in LCD secondary
region.
Updates echo confidence value.
Updates distance measurement
Mode
opens PROGRAM mode Opens the menu level last displayed in this
power cycle, unless power has been cycled
since exiting PROGRAM mode or more than
2 minutes have elapsed since PROGRAM
mode was used. Then top level menu will be
displayed.
RIGHT arrow
opens PROGRAM mode Opens the top level menu.
UP
or
DOWN
arrow toggles between
AIFB 1 and AIFB 2.
Identifies which AIFB is the source of the
displayed value.
Commissioning
6.2 Operating via the handheld programmer
SITRANS LR250 (PROFIBUS PA)
58 Operating Instructions, 08/2014, A5E32221386-AC
6.2.3
Programming
Note
• While the device is in PROGRAM mode the output remains active and continues to
respond to changes in the device.
• The device automatically returns to Measurement mode after a period of inactivity in
PROGRAM mode (between 15 seconds and 2 minutes, depending on the menu level).
Change parameter settings and set operating conditions to suit your specific application. For
remote operation see Operating via SIMATIC PDM (Page 75).
Parameters menu
Note
For the complete list of parameters with instructions, see Parameter Reference (Page 107).
Parameters are identified by name and organized into function groups. See LCD menu structure
(Page 295).
1. QUICK START
2. SETUP
2.1. IDENTIFICATION
............
2.4. LINEARIZATION
2.4.1. VOLUME
2.4.1.1. VESSEL SHAPE
Commissioning
6.2 Operating via the handheld programmer
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 59
1. Enter PROGRAM mode
● Point the programmer at the display from a maximum distance of 300 mm (1 ft).
●
RIGHT arrow
activates PROGRAM mode and opens menu level 1.
●
Mode
opens the menu level last displayed in PROGRAM mode within the last 30 minutes,
or menu level 1 if power has been cycled since then.
①
Handheld programmer
②
Display
③
Maximum distance: 300 mm (1 ft)
2. Navigating: key functions in Navigation mode
Note
• In navigation mode
ARROW keys
move to the next menu item in the direction of the
arrow.
• For Quick Access to parameters via the handheld programmer, press Home , then
enter the menu number, for example:
(2.4.1.) Volume.
Commissioning
6.2 Operating via the handheld programmer
SITRANS LR250 (PROFIBUS PA)
60 Operating Instructions, 08/2014, A5E32221386-AC
Key
Name
Menu level
Function
UP
or
DOWN arrow
menu or
parameter
Scroll to previous or next menu or
parameter.
RIGHT arrow
menu Go to first parameter in the selected
menu, or open next menu.
parameter Open
Edit
mode.
LEFT arrow
menu or
parameter
Open parent menu.
Mode
menu or
parameter
Change to
MEASUREMENT
mode.
Home
menu or
parameter
Open top level menu: menu 1.
3. Editing in PROGRAM mode
● Navigate to the desired parameter.
● Press
RIGHT
arrow
to open parameter view.
● Press
RIGHT arrow
again to open
Edit
mode. The current selection is highlighted. Scroll
to a new selection.
● Press
RIGHT arrow
to accept it.
The LCD returns to parameter view and displays the new selection.
① Parameter name ② Parameter number ③ Current selection
Commissioning
6.2 Operating via the handheld programmer
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 61
4. Changing a numeric value
● Navigate to the desired parameter.
● Press
RIGHT arrow
to open parameter view. The current value is displayed.
● Press
RIGHT arrow
again to open
Edit
mode. The current value is highlighted.
● Key in a new value.
● Press
RIGHT arrow
to accept it.
The LCD returns to parameter view and displays the new selection.
①
Parameter name ② Parameter number ③ Current value
Commissioning
6.2 Operating via the handheld programmer
SITRANS LR250 (PROFIBUS PA)
62 Operating Instructions, 08/2014, A5E32221386-AC
Key functions in edit mode
Key
Name
Function
UP
or
DOWN arrow
Selecting
options
Scrolls to item.
Numeric
editing
• Increments or decrements digits
• Toggles plus and minus sign
RIGHT arrow
Selecting
options
• Accepts the data (writes the
parameter)
• Changes from
Edit
to
Navigation
mode
Numeric
editing
• Moves cursor one space to the right
• or, with cursor on Enter sign, accepts
the data and changes from
Edit
to
Navigation
mode
LEFT arrow:
Selecting
options
Cancels
Edit
mode without changing the
parameter.
Numeric
editing
• Moves cursor to plus/minus sign if this
is the first key pressed
• or moves cursor one space to the left
Clear
Numeric
editing
Erases the display.
Decimal point
Numeric
editing
Enters a decimal point.
Plus or minus sign
Numeric
editing
Changes the sign of the entered value.
to
Numeral
Numeric
editing
Enters the corresponding character.
Commissioning
6.2 Operating via the handheld programmer
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 63
6.2.3.1
Quick Start Wizard via the handheld programmer
Note
• A reset to factory defaults should be performed before running the Quick Start Wizard if
the device has been used in a previous application. See
Master Reset (4.1.)
.
• The Quick Start wizard settings are inter-related and changes apply only after you select
YES
in
(1.8) Apply? (Apply changes)
in the Wizard Complete step.
• Do not use the Quick Start wizard to modify parameters: see instead Parameter
reference (Page 107). (Perform customization for your application only after the Quick
Start has been completed).
• Default settings in the parameter tables are indicated with an asterisk (*).
1. Quick Start
● Point the programmer at the display from a maximum distance of 300 mm (1 ft), then press
RIGHT arrow
to activate PROGRAM mode and open menu level 1.
● Press
RIGHT arrow
twice to navigate to menu item 1.1 and open parameter view.
● Press
RIGHT arrow
to open Edit mode or
DOWN arrow
to accept default values and
move directly to the next item.
● To change a setting, scroll to the desired item or key in a new value.
● After modifying a value, press
RIGHT arrow
to accept it and press
DOWN arrow
to
move to the next item.
● Quick Start settings take effect only after you select
Yes
to
Apply changes
from previous
steps
.
1.1 Language
Selects the language to be used on the LCD and takes effect immediately.
Options
English, Deutsch, Français, Español
1.2 Material
Selects the appropriate echo processing algorithms for the material [see
Position Detect
(2.5.7.2.)
for more detail].
Options
* LIQUID
LIQUID LOW DK a) (low dielectric liquid – CLEF algorithm enabled)
a) dK < 3.0
Commissioning
6.2 Operating via the handheld programmer
SITRANS LR250 (PROFIBUS PA)
64 Operating Instructions, 08/2014, A5E32221386-AC
1.3 Response Rate
Sets the reaction speed of the device to measurement changes in the target range. Use a
setting just faster than the maximum filling or emptying rate (whichever is greater).
Options
Response Rate (2.3.8.1.)
Fill rate (2.3.8.2.)/Empty rate per Minute
(2.3.8.3.)
SLOW 0.1 m/min (0.32 ft/min)
MED 1.0 m/min (3.28 ft/min)
FAST 10.0 m/min (32.8 ft/min)
1.4 Units
Sensor measurement units.
Options
m, cm, mm, ft, in.
1.5 Operating mode
Operation
Description
NO SERVICE Measurement and associated loop current are not updated, and the device
defaults to Fail-safe mode a).
LEVEL Distance to material surface referenced from Low Calibration Point
SPACE Distance to material surface referenced from High Calibration Point
DISTANCE Distance to material surface referenced from Sensor reference point
a)
See Material Level (2.5.1.) for more detail.
①
Space
④
High Calibration Point (process full level)
②
Level
⑤
Sensor reference point
a)
③
Distance
⑥
Low Calibration Point (process empty level)
a) The point from which High and Low Calibration points are referenced: see
Dimension
Drawings
.
Commissioning
6.2 Operating via the handheld programmer
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 65
1.6 Low Calibration Point
Distance from Sensor Reference to Low Calibration Point: usually process empty level. (See
Operating mode
for an illustration.)
Values
Range: 0.00 to 20.00 m
1.7 High Calibration Point
Distance from Sensor reference point to High Calibration Point: usually process full level. (See
Operating
mode
for an illustration.)
Values
Range: 0.00 to 20.00 m
1.8 Apply? (Apply changes)
Options
YES, NO, DONE (Display shows DONE when Quick Start is successfully
completed.)
Press
Mode
to return to
Measurement
mode. SITRANS LR250 is now ready to operate.
6.2.3.2
Auto False Echo Suppression
If you have a vessel with known obstructions, we recommend using Auto False Echo
Suppression to prevent false echo detection. See
(2.5.10.) TVT setup
for instructions.
This feature can also be used if the display shows a false high level, or the reading is fluctuating
between the correct level and a false high level.
Commissioning
6.2 Operating via the handheld programmer
SITRANS LR250 (PROFIBUS PA)
66 Operating Instructions, 08/2014, A5E32221386-AC
6.2.3.3
Requesting an Echo Profile
• In
PROGRAM
mode, navigate to:
Level Meter > (3.) >
Diagnostics > (3.1.) > Echo Profile
• Press
RIGHT arrow
to request a profile.
• Use
UP
or
DOWN arrow
to scroll to an icon. When an icon is highlighted, that
feature becomes active.
• To move a cross-hair, press
RIGHT arrow
to increase the value,
LEFT
arrow
to
decrease.
• To Zoom into an area, position the intersection of the cross-hairs at the center of that
area, select
Zoom
, and press
RIGHT arrow.
Press
LEFT arrow
to Zoom out.
• To update the profile, select
Measure
and press
RIGHT arrow.
• To return to the previous menu, select
Exit
then press
RIGHT arrow.
① confidence ⑥ measure
② algorithm: tF (trueFrist) ⑦ exit
③ distance ⑧ exit icon selected/highlighted
④ TVT ⑨ exit icon deselected
⑤ echo
Commissioning
6.3 Application examples
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 67
6.2.3.4
Device address
Note
See Master Reset (Page 97) to reset Device Address to 126.
The unique address of the device on the network (also called PROFIBUS address).
Values 0 - 126. Default: 126
1. In PROGRAM mode, navigate to:
Level Meter > (5.)
Communication > (5.1.)
Device Address
.
2. Press
RIGHT arrow
,
RIGHT arrow
, to open parameter view and enable Edit mode.
3. If required, key in a new value and press
RIGHT arrow
to accept it. The LCD displays the
new value.
4. Press
Mode
to return to Measurement mode.
6.3
Application examples
Note
In the applications illustrated below, values are for example purposes only.
You can use these examples as setup references. Enter the values in the parameter tables to
select the corresponding functions.
Configure the basic settings using the Quick Start wizard parameters. (These parameters are
inter-related, and changes take effect only after you select
YES
to apply changes in the final
step.)
In each example, after performing a Quick Start, navigate to the other required parameters either
via the handheld programmer or via SIMATIC PDM and enter the appropriate values.
Commissioning
6.3 Application examples
SITRANS LR250 (PROFIBUS PA)
68 Operating Instructions, 08/2014, A5E32221386-AC
6.3.1
Liquid resin in storage vessel, level measurement
Note
Minimum distance from flange face to target is limited by
Near Range (2.5.1.)
.
To obtain level measurement proportional to resin levels:
● Low Calibration Pt. = 5 m (16.4 ft) from sensor reference point
● High Calibration Pt.= 0.5 m (1.64 ft) from sensor reference point
● Max.fill/empty rate = 0.2 m/min (0.65 ft/min)
In the event of a loss of echo:
● SITRANS LR250 is to report a user-defined value of 4.5 m (14.76 ft) after 2 minutes.
① Sensor reference point ⑤ 5 m
② High calibration point ⑥ Low calibration point
③ 0.5 m ⑦ 0% level
④ 100% level
Commissioning
6.3 Application examples
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 69
Parameter type
Parameter No. /Name
Options/
Values
Function
Quick Start
Wizard
parameters
Material (1.2.)
LIQUID
Response Rate (1.3.)
MED
Medium =1 m/minute
Units (1.4.)
M
meters
Operating mode (1.5.)
LEVEL
Level
Low Calibration Point (1.6.)
5
5 m (16.4 ft)
High Calibration Point (1.7.)
0.5
0.5 m (1.64 ft)
Apply? (Apply changes) (1.8.)
YES
Transfers Quick Start
settings to device.
Independent
parameters
LOE Timer (2.3.6.)
2
2 minutes
Mode
(2.6.9.1.)
Substitute
value
User-defined value to be
used.
Value (2.6.9.2)
4.5
4.5 m (14.76 ft)
Press
Mode
to return to
Measurement
mode. .
6.3.2
Horizontal vessel with volume measurement
Note
The minimum distance from the flange face to the target is limited by
Near Range (2.5.1.)
.
To obtain level measurement proportional to vessel volume in a chemical vessel:
● Low Calibration Point = 3.5 m (11.48 ft) from sensor reference point
● High Calibration Point = 0.5 m (1.64 ft) from sensor reference point
● Max. fill/empty rate = 0.2 m/min (0.65 ft/min)
Select vessel shape, Parabolic Ends, and enter values for A and L, to obtain a volume reading
instead of level.
In the event of a loss of echo: SITRANS LR250 is to report a user-defined value of 4.5 m (14.76
ft) after 2 minutes.
Commissioning
6.3 Application examples
SITRANS LR250 (PROFIBUS PA)
70 Operating Instructions, 08/2014, A5E32221386-AC
①
Sensor reference point
⑥
A = 0.8 m
②
0.5 m
⑦
L = 6 m
③
High calibration point
⑧
100% = 8000 L
④
3.5. m
⑨
Volume reading
⑤
Low calibration point
Parameter type
Parameter No./Name
Options/
Values
Function
Quick Start
Wizard
parameters
Material (1.2.)
LIQUID
Response Rate (1.3.)
MED
Medium =1 m/minute
Units (1.4.)
M
meters
Operating Mode (1.5.)
LEVEL
Level is reported as
Volume when a vessel
shape is selected.
Low Calibration Point (1.6.)
3.5
3.5 m (11.48 ft)
High Calibration Point (1.7.)
0.5
0.5 m (1.64 ft)
Apply? (Apply changes) (1.8)
YES
Transfers Quick Start
settings to device.
Independent
parameters
Vessel Shape (2.4.1.1.)
PARABOLIC
ENDS
Defines vessel shape.
Maximum Volume (2.4.1.2.)
8000
8000 liters
Vessel Dimension A (2.4.1.3.)
0.8
0.8 m (2.62 ft)
Vessel Dimension L (2.4.1.4.)
6
6 m (19.68 ft)
LOE Timer (2.3.6.)
2
2 minutes
Mode (2.6.9.1.)
Substitute value
User-defined value to be
used.
Value (2.6.9.2.)
4.5
4.5 m (14.76 ft)
Return to
Measurement:
press
Mode
to start normal operation.
Commissioning
6.3 Application examples
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 71
6.3.3
Application with stillpipe
A stillpipe is recommended for products with a dK of less than 3, or if extremely turbulent or
vortex conditions exist. This mounting arrangement can also be used to provide optimum signal
conditions on foaming materials.
Note
•
Near Range (2.5.1.)
(Blanking) will be set at the factory. Check the process connection
tag for specific values.
• Suitable pipe diameters are 40 mm (1.5") to 100 mm (4").
• The pipe diameter must be matched with the antenna size. Use the largest antenna size
that will fit the stillpipe/bypass pipe. See Dimension drawings (Page 195).
• See Mounting on a Stillpipe or Bypass Pipe (Page 32) for installation guidelines.
This application is to obtain a level measurement and corresponding 4 to 20 mA output
proportional to the oil level in a fuel storage vessel.
● Low Calibration Pt. is 5 m (16.4 ft) from the sensor reference point.
● High Calibration Pt. is 0.5 m (1.64 ft) from the sensor reference point.
● The stillpipe inside diameter is 50 mm (1.96").
● The maximum rate of filling or emptying is about 0.1 m (4")/min.
① Sensor reference point ⑤ 5 m
② High calibration point ⑥ 50 mm I.D.
③ 0.5 m ⑦ Low calibration point
④ Vent hole
Commissioning
6.3 Application examples
SITRANS LR250 (PROFIBUS PA)
72 Operating Instructions, 08/2014, A5E32221386-AC
Parameter type
Parameter No./Name
Options/Values
Function
Quick Start
Wizard
parameters
Introduction
NEXT
Continue with Wizard.
Language (1.1)
NEXT
Continue with current
language.
Material (1.2)
LIQUID LOW DK
Response Rate (1.3)
MED
Medium =1 m/minute
Units (1.4)
M
meters
Operating mode (1.5)
LEVEL
Level is reported as
Volume when a vessel
shape is selected.
Low Calibration Point (1.6)
5
5 m (16.4 ft)
High Calibration Point (1.7)
0.5
0.5 m (1.64 ft)
Apply? (Apply changes) (1.8)
YES
Transfers Quick Start
settings to device.
Independent
parameters
Propagation Factor (2.5.3.)a)
0.988
P.F. for a 50 mm (1.96")
I.D. stillpipe
Position Detect (2.5.7.2.)
HYBRID
CLEF Range (2.5.7.4.)a) 4.3 Low calibration point -
0.7 m = 4.3 m (14.1 ft)
a) The recommended values for the propagation factor and for CLEF range are dependent on the
stillpipe diameter. See Propagation Factor/Stillpipe Diameter for values.
①
sensor reference point
③
low calibration point
②
air gap
④
CLEF range 2.5.7.4.
A
700 or 1000 mm (see CLEF Range settings in table below)
Commissioning
6.3 Application examples
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 73
Propagation Factor/Stillpipe Diameter
Values
Range 0.3 to 1.0 depending on pipe size
Default 1.0000
Nominal Pipe Size
a) 40 mm (1.5") 50 mm (2") 80 mm (3") 100 mm (4")
Propagation Factor
0.9844 0.988 0.9935 0.9965
CLEF Range (2.5.7.4.) settings
Low
calibration
point - 700
mm (2.29 ft)b)
Low
calibration
point - 700
mm (2.29 ft)b)
Low
calibration
point - 1000
mm (3.28 ft)b)
Low
calibration
point - 1000
mm (3.28 ft)b)
a) Since pipe dimensions may vary slightly, the propagation factor may also vary.
b) CLEF range covers the whole measurement range except first 700 or 1000 mm from sensor
reference point
Note
Flanged and Hygienic encapsulated antenna
For Flanged encapsulated antenna (7ML5432) and Hygienic encapsulated antenna
(7ML5433) match the process connection size to the pipe diameter. For example, DN80/3"
flange to DN80/3" pipe.
Commissioning
6.3 Application examples
SITRANS LR250 (PROFIBUS PA)
74 Operating Instructions, 08/2014, A5E32221386-AC
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 75
Remote operation
7
7.1
Operating via SIMATIC PDM
SIMATIC PDM is a software package used to commission and maintain process devices. Please
consult the operating instructions or online help for details on using SIMATIC PDM. You can find
more information on versions and compatibility at our website:
SIMATIC PDM (www.siemens.com/simatic-pdm).
7.1.1
Functions in SIMATIC PDM
Note
• For a complete list of parameters see Parameter Reference (Page 107).
• While the device is in PROGRAM mode the output remains active and continues to
respond to changes in the device.
SIMATIC PDM monitors the process values, alarms and status signals of the device. It allows
you to display, compare, adjust, verify, and simulate process device data; also to set schedules
for calibration and maintenance.
Parameters are identified by name and organized into function groups. See LCD menu structure
(Page 295) for a chart and Changing parameter settings using SIMATIC PDM (Page 83) for
more details. The menu structure for SIMATIC PDM is almost identical to that for the LCD.
See Parameters accessed via pull-down menus (Page 83) for parameters that do not appear in
the menu structure in SIMATIC PDM.
Remote operation
7.1 Operating via SIMATIC PDM
SITRANS LR250 (PROFIBUS PA)
76 Operating Instructions, 08/2014, A5E32221386-AC
7.1.1.1
Features of SIMATIC PDM Rev. 6.0, SP4 or higher
The graphic interface in the device makes monitoring and adjustments easy.
Feature
Function
Quick Start (Page 78)
Device configuration for simple applications
Echo Profile Utilities (Page 84)
Easy access to echo profile viewing/comparison, TVT shaping,
auto false echo suppression and echo setup
Auto False Echo Suppression
(Page 88)
Screen out false echoes
TVT Shaper (Page 86)
Manual TVT adjustment
Process Variables (Page 98)
Monitor process variables and level trend
Security (Page 104)
Protect security and communication parameters from
modification by the maintenance user
7.1.1.2
Features of SIMATIC PDM Rev. 5.2, SP1
SIMATIC PDM Rev. 5.2 SP1 is supported only for basic configuration and troubleshooting. For
advanced features such as the Quick Start wizard, Rev. 6.0 SP3 HF2 or higher is required.
7.1.1.3
SIMATIC PDM Version
Check the support page of our website to make sure you have the latest version of SIMATIC
PDM, the most recent Service Pack (SP) and the most recent hot fix (HF): SIMATIC PDM
Version (https://support.automation.siemens.com). Browse to
Product Information > Automation
Technology > Process control systems > SIMATIC PCS 7 > System components > SIMATIC
PDM.
7.1.2
Electronic Device Description (EDD)
7.1.2.1
Updating the Electronic Device Description (EDD)
You can locate the EDD in Device Catalog, under
Sensors/Level/Echo/SiemensMilltronics/SITRANS LR250
. The EDD revision must match the
Firmware revision in the device.
Remote operation
7.1 Operating via SIMATIC PDM
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 77
To install a new EDD:
1. Download the most current EDD from our website: Product page
(http://www.siemens.com/LR250)
2. Save files to your computer, and extract the zipped file to an easily accessed location.
3. Launch
SIMATIC PDM – Manage Device Catalog
, browse to the unzipped EDD file and
select it.
7.1.2.2
Configuring a new device
Note
• Clicking on
Cancel
during an upload from device to SIMATIC PDM will result in some
parameters being updated.
• Application Guides for setting up PROFIBUS PA devices with SIMATIC PDM can be
downloaded from our website:
Product page (http://www.siemens.com/LR250).
1. Check that you have the most recent EDD, and if necessary update it. [See Updating the
Electronic Device Description (EDD) (Page 76)].
2. Set Address via handheld programmer (default for PROFIBUS PA is 126). [See
Device
Address (5.1.)
to use SIMATIC PDM.]
– In PROGRAM mode, navigate to:
Level Meter > Communication (5.) > Device Address
(5.1.)
.
– Press
RIGHT arrow
,
RIGHT arrow
, to open parameter view and enable Edit mode.
– If required, key in a new value and press
RIGHT
arrow to accept it. The LCD displays
the new value.
– Press
Mode
to return to Measurement mode.
3. Launch SIMATIC Manager and create a new project for the device.
4. Open the menu
Device – Master Reset
and click on
Factory Defaults.
5. After the reset is complete click on
Close
, then upload parameters to the PC/PG.
6. Configure the device via the Quick Start wizard.
Remote operation
7.1 Operating via SIMATIC PDM
SITRANS LR250 (PROFIBUS PA)
78 Operating Instructions, 08/2014, A5E32221386-AC
7.1.3
Quick start wizard via SIMATIC PDM
The graphic Quick Start Wizard provides an easy step-by-step procedure that configures the
device for a simple application.
Please consult the operating instructions or online help for details on using SIMATIC PDM.
1. If you have not already done so, check that you have the most up-to-date Electronic Device
Description (EDD) for your device. [See Configuring a new device (Page 77).]
2. Launch SIMATIC Manager and create a new project. Application Guides for setting up HART
and PROFIBUS PA devices with SIMATIC PDM can be downloaded from the product page of
our website:
Product page (http://www.siemens.com/LR250)
Quick start
Note
• A reset to
Factory Defaults
should be performed before running the Quick Start Wizard if
device has been used in a previous application. See Master Reset via SIMATIC PDM
(Page 97).
• The Quick Start wizard settings are inter-related and changes apply only after you click
on
FINISH AND DOWNLOAD
at the end of the last step to save settings offline and
transfer them to the device.
• Do not use the Quick Start Wizard to modify individual parameters: for quick access to
echo profile parameters, see Echo Profile via SIMATIC PDM (Page 85) or see Parameter
Reference (Page 107) for a complete list. (Perform customization only after the Quick
Start has been completed.)
• Click on
BACK
to return and revise settings or
CANCEL
to exit the Quick Start.
• For a vessel with obstructions see Auto False Echo Suppression via SIMATIC PDM
(Page 88).
Launch SIMATIC PDM, open the menu
Device – Wizard - Quick Start
, and follow steps 1 to 5.
①
Quick Start
Remote operation
7.1 Operating via SIMATIC PDM
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 79
Step 1 – Identification
Note
• The layout of the dialog boxes shown may vary according to the resolution setting for
your computer monitor.
• SITRANS PDM limits the TAG field to a maximum of 24 characters.
1. Click on
Read Data from Device
to upload Quick Start parameter settings from the device to
the PC/PG and ensure PDM is synchronized with the device.
2. If required, change the language for the local user interface.
3. Click on
NEXT
to accept the default values. (Description, Message, and Installation Date
fields can be left blank.)
Remote operation
7.1 Operating via SIMATIC PDM
SITRANS LR250 (PROFIBUS PA)
80 Operating Instructions, 08/2014, A5E32221386-AC
Step 2 – Application
Select the application type (level or volume) and the material, then click on
NEXT
.
See Application with Stillpipe (Page 71) for a Low Dielectric Liquid application.
Remote operation
7.1 Operating via SIMATIC PDM
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 81
Step 3 – Vessel Shape
The vessel shapes shown are
predefined.
For a vessel with obstructions, see
Auto False Echo Suppression via
SIMATIC PDM (Page 88).
Select the vessel shape, and click on
NEXT
.
Remote operation
7.1 Operating via SIMATIC PDM
SITRANS LR250 (PROFIBUS PA)
82 Operating Instructions, 08/2014, A5E32221386-AC
Step 4 – Ranges
Set the parameters, and click on
NEXT
.
Step 5 – Summary
Check parameter settings, and click on
BACK
to return and revise values,
FINISH
to save
settings offline, or
FINISH AND DOWNLOAD
to save settings offline and transfer them to the
device.
The message
Quick Start was successful
will appear. Click on
OK
.
Remote operation
7.1 Operating via SIMATIC PDM
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 83
7.1.4
Changing parameter settings using SIMATIC PDM
Note
• For a complete list of parameters, see Parameter Reference (Page 107).
• Clicking on
Cancel
during an upload from device to SIMATIC PDM will result in some
parameters being updated.
Many parameters are accessed via pull-down menus in PDM. See Parameters accessed via
pull-down menus (Page 83) for others.
1. Launch SIMATIC PDM, connect to device, and upload data from device.
2. Adjust parameter values in the parameter value field then
Enter
. The status fields read
Changed
.
3. Open the Device menu, click on
Download to device
, then use
File - Save
to save settings
offline. The status fields are cleared.
①
value fields
7.1.5
Parameters accessed via pull-down menus
Click on
Device
or
View
to open the associated pull-down menus.
Remote operation
7.1 Operating via SIMATIC PDM
SITRANS LR250 (PROFIBUS PA)
84 Operating Instructions, 08/2014, A5E32221386-AC
Pull-down menus
Device menus
View menus
Communication path Process Variables (Page 98)
Download to device
Upload to PC/PG
Update Diagnostic Status
Device Diagnostics
Toolbar
Status bar
Wizard - Quick Start (Page 78) Update
Echo Profile Utilities (Page 84)
Maintenance (Page 91)
Acknowledge Faults (Page 93)
Wear (Page 93)
Simulation (Page 93)
Write Locking (Page 96)
Master Reset (Page 97)
7.1.5.1
Echo profile utilities
Open the menu
Device – Echo Profile Utilities
and click on the appropriate tab for easy access
to:
● Echo profile (Page 85)
● View Saved Echo Profiles (Page 86)
● TVT Shaper (Page 86)
● Auto False Echo Suppression (Page 88)
● Echo Setup (Page 91)
Remote operation
7.1 Operating via SIMATIC PDM
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 85
Echo profile
Note
• Double click on each axis to see the Xscale and Data Scale values.
• To zoom in to a section of the profile, left-click and drag a marquee around it. Right click
inside the window to zoom out.
• Expand or compress the x and/or y axes:
– Left-click on the axis and drag in either direction to reposition the low end of the scale.
– Right-click on the axis and drag in either direction to reposition the high end of the
scale.
• After saving a profile click on
OK
, not the
x
button, to close the Echo Profile Utilities
window, otherwise the profile will not be saved.
● In the
Echo Profile Utilities
window click the
Echo Profile
tab.
● Initial profile graph is blank upon entry to dialog. Click
Measure
to update the profile.
● It is recommended to use the
Detailed
resolution view of the echo profile for troubleshooting.
For faster and more coarse views, the
Standard
resolution may be used.
● Click
Save
and in the new window enter a name and click
OK
.
● Click
OK
to exit.
①
Resolution
②
Echo Profile Time Based Storage
Remote operation
7.1 Operating via SIMATIC PDM
SITRANS LR250 (PROFIBUS PA)
86 Operating Instructions, 08/2014, A5E32221386-AC
View saved echo profiles
To view a saved profile, click on the tab
View Saved Echo Profiles
.
Echo profile data logging
You can store up to 60 profiles at a selected interval (maximum 60 minutes). Inside Echo Profile
Utilities, in the
Echo Profile Time Based Storage
window:
● Enter the desired interval between stored profiles.
● Enter the maximum number of profiles to be stored (maximum 60).
● Click on
Start
. A message appears warning of the time delay and warning that all previous
saved profiles will be overwritten. Click on
OK
to proceed. The new profiles will be saved with
their date and time.
● Click on the tab
View Saved Echo Profiles
to view the stored profiles.
TVT Shaper
Note
Double click on each axis to see the X scale and data scale values. Right-click or Left-click
on the axis and drag to reposition the scale.
This feature allows you to manually adjust the TVT to avoid false echoes caused by
obstructions. For an explanation see Auto False Echo Suppression (Page 246).
Open the menu
Device – Echo Profile Utilities
and click the tab
TVT Shaper
.
Remote operation
7.1 Operating via SIMATIC PDM
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 87
①
TVT
②
Cursor
③
Echo profile
● Initial profile graph is blank upon entry to dialog. Click on
Measure
to view and upload the
current TVT from device.
● Change the position of the cursor on the TVT using the
Point+
and
Point–
buttons: raise and
lower the TVT using
Offset+
and
Offset
-.
● Alternatively, enter values for
Point
and
Offset
directly into the dialog boxes.
● Click on
Transfer to Device
.
Remote operation
7.1 Operating via SIMATIC PDM
SITRANS LR250 (PROFIBUS PA)
88 Operating Instructions, 08/2014, A5E32221386-AC
7.1.5.2
Auto false echo suppression
Note
• Ensure material level is below all known obstructions when using Auto False Echo
Suppression to learn the echo profile. An empty or almost empty vessel is recommended.
• Note the distance to material level when learning the echo profile, and set Auto False
Echo Suppression Range to a shorter distance to avoid the material echo being screened
out.
• Set Auto False Echo Suppression and Auto False Echo Suppression Range during
startup, if possible.
• If the vessel contains an agitator it should be running.
• Before adjusting these parameters, rotate the device for best signal (lower false-echo
amplitude).
If you have a vessel with known obstructions, use Auto False Echo Suppression to prevent false
echo detection. This feature can also be used if the device displays a false high level, or the
reading is fluctuating between the correct level and a false high level.
The device learns the echo profile over the whole measurement range and the TVT is shaped
around all echoes present at that moment. See Auto False Echo Suppression (Page 246)
for a
more detailed explanation.
Remote operation
7.1 Operating via SIMATIC PDM
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 89
The learned TVT will be applied over a specified range. The default TVT is applied over the
remainder of the measurement range.
1. Make sure the material level is below all known obstructions.
2. Determine
Auto False Echo Suppression Range
. Measure the actual distance from the
sensor reference point to the material surface using a rope or tape measure. Subtract 0.5 m
(20") from this distance, and use the resulting value.
3. Open the menu
Device – Echo Profile Utilities
and click on the tab
Auto False Echo
Suppression
.
4. Make sure
Auto False Echo Suppression Range
is
On
.
5. Enter the value for
Auto False Echo Suppression Range.
6. Click
Learn
. The message appears:
'This will learn a new echo profile. Once done it cannot
be undone'
. Click
OK
.
7. Once Auto TVT is complete click
Transfer to Device
. To exit click
Close
. Auto TVT is enabled
and the learned TVT will be used.
8. To turn
Auto False Echo Suppression
off or on, reopen the
Auto False Echo Suppression
window, change the Auto False Echo Suppression to
Off
or
On
, click on
Transfer to Device.
Remote operation
7.1 Operating via SIMATIC PDM
SITRANS LR250 (PROFIBUS PA)
90 Operating Instructions, 08/2014, A5E32221386-AC
Before Auto False Echo Suppression
①
TVT Hover Level
④
Echo marker
②
Default TVT
⑤
Material level
③
False echo
After Auto False Echo Suppression
①
False echo
④
Material level
②
Learned TVT
⑤
Default TVT
③
Auto False Echo Suppression Range
⑥
Echo marker
Remote operation
7.1 Operating via SIMATIC PDM
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 91
7.1.5.3
Echo setup
Provides quick access to echo selection, filtering, and response rate parameters.
Open the menu
Device – Echo Profile Utilities
and click on
Echo Setup
.
7.1.5.4
Maintenance
You can set schedules and reminders for:
● device maintenance based on its projected lifetime
● sensor maintenance based on its projected lifetime
● service
● calibration
Remote operation
7.1 Operating via SIMATIC PDM
SITRANS LR250 (PROFIBUS PA)
92 Operating Instructions, 08/2014, A5E32221386-AC
To set Device/Sensor Maintenance schedules:
1. Open the menu
Device – Maintenance
, and click on the
Remaining Device/Sensor Lifetime
tab.
2. Modify desired values, and if desired, set reminders for either or both of
Reminder 1 before
Lifetime (Required)
/
Reminder 2 before Lifetime (Demanded)
.
3. Click
Write.
4. Click
Read
, to see the effects of your modification.
5. Click
Snooze
to add a year to the Total Expected Device Life.
To set Service/Calibration schedules:
1. Open the menu
Device – Maintenance
, and click on the
Service/Calibration Schedule
tab.
2. Modify desired values and if desired, set reminders for either or both of
Reminder 1 before
Lifetime (Required)
/
Reminder 2 before Lifetime (Demanded)
.
3. Click
Write.
4. Click
Read
, to see the effects of your modification.
5. Click
Service/Calibration Performed
to reset the schedule.
Remote operation
7.1 Operating via SIMATIC PDM
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 93
7.1.5.5
Acknowledge Faults
Open the menu
Device – Acknowledge Faults
, select the appropriate item from the Extended
Diagnostics pull-down menu, and click on
Transfer
.
7.1.5.6
Wear
Reports the number of hours the device has been operating, and the number of times it has
been powered up.
Open the menu
Device – Wear
to view:
● Powered Hours
● Power-on Resets
7.1.5.7
Simulation
Note
The Simulation parameter influences output to the control system.
Two options enable you to test the functioning of the Analog Input Function Blocks or the
functioning of everything between the Transducer Block and Output. For more details see
Analog Input Function Blocks 1 and 2 (Page 270).
Simulate analog input to AIFB1 or AIFB2
Allows you to input a simulated measured value, status, and quality, in order to test the
functioning of an Analog Input Function Block.
Remote operation
7.1 Operating via SIMATIC PDM
SITRANS LR250 (PROFIBUS PA)
94 Operating Instructions, 08/2014, A5E32221386-AC
1. Open the menu
Device – Simulation
, and select the desired function block.
2. Click on the tab
Simulation (Measured value)
.
3. Enable simulation, enter a percentage value, set the desired quality and status, and click on
Transfer
. See Status Byte (Page 280) for more information on status and quality.
4. The Output value from the desired function block is displayed in PDM, and the LCD displays
the substitute value. See Simulate Output below, to set the output mode.
5. After simulation is complete, disable simulation and click on
Transfer
.
Remote operation
7.1 Operating via SIMATIC PDM
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 95
Simulate output
1. Open the menu
Device – Simulation
, select function block 1 or 2, and click on the tab
Simulation (Output).
2. Select Manual Mode (from options AUTO, Manual, or Out of Service) and click on
Transfer
.
3. Enter simulated value and click on
Transfer
.
4. After simulation is complete, return to Simulate Output, reselect AUTO mode, and click on
Transfer
.
Remote operation
7.1 Operating via SIMATIC PDM
SITRANS LR250 (PROFIBUS PA)
96 Operating Instructions, 08/2014, A5E32221386-AC
Simulate input
1. Open the menu
Device – Simulation
, and select
Simulation (Input)
.
2. To enable simulation select
Fixed
or
Ramp
.
3. If you select Ramp, enter the step length and number of steps.
4. Enter the simulated value and click on
Transfer
.
5. After simulation is complete, disable simulation and click on
Transfer
.
7.1.5.8
Write locking
Prevents any changes to parameters via PDM or the hand-held programmer. If Write Locking is
enabled, the data can be viewed but not modified.
To enable/disable Write Locking
1. Open the menu
Device – Write Locking
and turn Write Protection
On
or
Off
.
2. Click on
Transfer.
Remote operation
7.1 Operating via SIMATIC PDM
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 97
7.1.5.9
Master reset
Options
Result
Factory defaults Resets all parameters to the manufacturer’s
default settings, with certain exceptions: see
Factory defaults (Page 97).
Standard defaults Resets all resettable parameters excluding
device addresses to the PROFIBUS default
settings.
Informational Resets Tag parameter.
Functional Resets parameters that control device behavior,
such as Low Calibration Pt.
Warm start Has the same effect as recycling power to the
device.
Reset address to 126 Resets the PROFIBUS device address to 126.
If the address lock was on, will disable the lock.
7.1.5.10
Factory defaults
Factory Defaults resets all user parameters to the default settings, with certain exceptions. The
list of exceptions includes, but is not limited to:
● Tag
● Message
● Descriptor
● Installation Data
● Device Address
● Write Protection
● Auto False Echo Suppression Range
● Learned TVT
To perform a reset to Factory Defaults:
1. Open the menu
Device
–
Master Reset
, and click on
Factory Defaults
.
2. After the reset is complete click on
Close
, then upload parameters to the PC/PG. (If you are
performing a reset after replacing the device with a different instrument, do not upload
parameters to the PC/PG.)
Resetting the PROFIBUS address to 126
1. Open the menu
Device – Master Reset
and click on
Reset Address to 126
.
2. Click on
OK
: the address will be reset to 126, and if the address lock was on, it will be
disabled.
Remote operation
7.1 Operating via SIMATIC PDM
SITRANS LR250 (PROFIBUS PA)
98 Operating Instructions, 08/2014, A5E32221386-AC
7.1.5.11
Diagnostics
You can monitor level/volume trends, function blocks, electronics temperature, and device
status.
Process variables
To compare outputs in real time open the menu
View
–
Process Variables
.
Note
To view peak sensor values, peak FB1 and FB2 values, or peak electronics temperatures,
see Device Diagnostics (Page 101).
● Sensor Value and simulation setting
● Electronics temperature
● Measured Value (level, volume, and distance) together with quality and status.
Remote operation
7.1 Operating via SIMATIC PDM
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 99
Function blocks
Open the menu View – Process Variables and click on Function Blocks to view the channel
(level, volume, space, or distance), operating mode (Auto, Manual, or Out of Service), quality,
status, simulation setting, and summary of alarms.
Remote operation
7.1 Operating via SIMATIC PDM
SITRANS LR250 (PROFIBUS PA)
100 Operating Instructions, 08/2014, A5E32221386-AC
Trend view
Open the menu
View – Process Variables
and click on
Trend View
to monitor Sensor Value and
values for AIFB1 and AIFB2.
①
trend line
②
trend lines
Remote operation
7.1 Operating via SIMATIC PDM
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 101
Device diagnostics
Device status
Open the menu
View
– Device Diagnostics and go to
Device Status
to view Diagnostics, Device
Status, Extended Diagnostics, and Maintenance.
Diagnostics
In the Device Status window, click on the
Diagnostics
tab, then on the
Update diagnostics
button
, to update diagnostic information and refresh linked icons.
①
Update diagnostics
Remote operation
7.1 Operating via SIMATIC PDM
SITRANS LR250 (PROFIBUS PA)
102 Operating Instructions, 08/2014, A5E32221386-AC
Device Status
Click on the Device Status tab to view peak sensor values, peak FB1 and FB2 values, and peak
electronics temperatures.
Remote operation
7.1 Operating via SIMATIC PDM
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 103
Analog Input 1/Analog Input 2
Open the menu
View – Device Diagnostics
and go to
Analog Input 1/Analog Input 2
. Click on the
tab
Overview
to see the status of all warnings and alarms. Click on the tab
Alarms and Warnings
for details.
Update
Open the menu
View – Update
to refresh the screen.
Remote operation
7.2 Operating via FDT
SITRANS LR250 (PROFIBUS PA)
104 Operating Instructions, 08/2014, A5E32221386-AC
Security
A password option protects security and communication control parameters from modification by
a maintenance user.
When you open a project the
User
dialog window provides two options: maintenance or
specialist. If a password has been set it will not be possible to open the project as a specialist
without it. A maintenance user will be able to open the project without a password but will not
have access to security and communication control parameters.
1. Open a project, double-click on the device icon, and in the
User
window select
Specialist
.
2. Open the menu
Options – Settings
and click on the
Password
tab.
3. Enter a new password and re-enter it in the
Confirmation
window. Click on
OK
.
Remote operation
7.2 Operating via FDT
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 105
7.2
Operating via FDT
FDT is a standard used in several software packages designed to commission and maintain field
devices. Two commercially available FDTs are PACTware and Fieldcare.
Functionally FDT is very similar to PDM. See Operating via SIMATIC PDM (Page 75) for more
detail.
● To configure a field device via FDT you need the DTM (Device Type Manager) for the device.
● To configure a field device via SIMATIC PDM, you need the EDD (Electronic Data
Description) for the device.
7.2.1
Device Type Manager (DTM)
A DTM is a type of software that ’plugs into’ FDT. It contains the same information as an EDD
but an EDD is independent of the operating system.
7.2.2
SITRANS DTM
● SITRANS DTM is an EDDL interpreter developed by Siemens to interpret the EDD for that
device.
● To use SITRANS DTM to connect to a device, you must first install SITRANS DTM on your
system and then install the device EDD written for SITRANS DTM.
● You can download SITRANS DTM from the Siemens service and support website. Go to
Service & Support (http://www.siemens.com/automation/service&support), click on
Product
Support
, and drill down to
Product Information/Automation Technology/Sensor
systems/Process Instrumentation/Software & Communications
.
Remote operation
7.2 Operating via FDT
SITRANS LR250 (PROFIBUS PA)
106 Operating Instructions, 08/2014, A5E32221386-AC
7.2.3
The device EDD
The SITRANS LR250 PROFIBUS PA EDD for SITRANS DTM can be downloaded from our
website:
Product page (http://www.siemens.com/LR250).
Go to
Support > Software Downloads
.
7.2.4
Configuring a new device via FDT
The full process to configure a field device via FDT is outlined in an Application Guide which can
be downloaded from our website under
Support
> Application Guides
.
Product page (http://www.siemens.com/LR250)
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 107
Parameter reference
8
Note
• Parameter names and menu structure are almost identical for SIMATIC PDM and the
local user interface (LUI).
• Default settings in the parameter tables are indicated with an asterisk (*) unless explicitly
stated.
•
Mode
toggles between
PROGRAM
and
Measurement
Modes.
• For Quick Access to parameters via the handheld programmer, press
Home
, then
enter the menu number, for example:
2.2.1.
• In Navigation mode
, ARROW keys ( )
navigate the menu in the direction of
the arrow.
• Press
RIGHT arrow
to open
Edit
Mode, or to save a modification.
Parameters are identified by name and organized into function groups. See LCD menu structure
(Page 295) for a chart.
Parameters accessible via the handheld programmer are followed by the device menu number
in parenthesis. Parameters not followed by a number are accessible only via remote operation.
For more details see:
● Operating via SIMATIC PDM (Page 75)
The Quick Start wizard provides an easy step-by-step procedure to configure the device for a
simple application.
Quick Start (1.)
Note
• Do not use the Quick Start wizard to modify individual parameters. (Perform
customization only after the Quick Start has been completed.)
• For access via remote operation see Quick Start Wizard via SIMATIC PDM (Page 78).
• For detailed instructions see Quick Start Wizard via the handheld programmer (Page 63).
Parameter reference
SITRANS LR250 (PROFIBUS PA)
108 Operating Instructions, 08/2014, A5E32221386-AC
Language (1.1.)
Material (1.2.)
Response Rate (1.3.)
Units (1.4.)
Operating Mode (1.5.)
Low Calibration Point (1.6.)
High Calibration Point (1.7.)
Apply? (Apply changes) (1.8.)
Setup (2.)
Note
• Default settings in the parameter tables are indicated with an asterisk (*) unless explicitly
stated.
• Values shown in the following tables can be entered via the handheld programmer.
Identification (2.1.)
Parameter reference
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 109
Tag (2.1.1.)
Note
SITRANS PDM limits the TAG field to a maximum of 24 characters.
Text that can be used in any way. A recommended use is as a unique label for a field device in a
plant. Limited to 32 ASCII characters.
Descriptor (2.1.2.)
Text that can be used in any way. Limited to 32 ASCII characters. No specific recommended
use.
Message (2.1.3.)
Text that can be used in any way. Limited to 32 ASCII characters. No specific recommended
use.
Device (2.2.)
Hardware Revision (2.2.1.)
Read only. Corresponds to the electronics hardware of the Field Device.
Firmware Revision (2.2.2.)
Read only. Corresponds to the software or firmware that is embedded in the Field Device.
Loader Revision (2.2.3.)
Read only. Corresponds to the software used to update the Field Device.
Order Option (2.2.4.)
Read only. Displays the device type.
Sensor (2.3.)
Parameter reference
SITRANS LR250 (PROFIBUS PA)
110 Operating Instructions, 08/2014, A5E32221386-AC
Unit (2.3.1)
Sensor measurement unit.
Values
m, cm, mm, ft, in
Default: m
Level Unit (2.3.2.)
Select engineering units for Level.
Options
m, cm, mm, ft, in, %
* %
PV Units (volume/level) (2.3.3.)
Note
• A greater selection of volume units is available via SIMATIC PDM.
• Default unit of AIFB1 or 2 is percent.
• You can select a different unit for your application.
• PV (Primary Value): the output from the Level Transducer Block. See Transducer Block
function groups (Page 267) and How the Transducer Block works (Page 268) for more
details.
Select units for either volume or level.
Level values m, cm, mm, ft, in
Volume values liter, gal
Percent value * %
Temperature Units (2.3.4.)
Selects the engineering unit to be displayed with the value representing temperature.
Options
DEG C, DEG F, RANKINE, KELVIN
* DEG C
Parameter reference
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 111
Material (2.3.5.)
Automatically configures the device to operate in the chosen application type, by changing one
or more of the following parameters:
Propagation Factor (2.5.3.)
,
Position Detect (2.5.7.2.)
,
and/or
CLEF Range (2.5.7.4.)
.
Options
* LIQUID
LIQUID LOW DK a) (low dielectric liquid - CLEF algorithm enabled)
Related parameters
Propagation Factor (2.5.3.)
Position Detect (2.5.7.2.)
CLEF Range (2.5.7.4.)
a)
dK < 3.0
You can configure each of the related parameters, to suit your particular application.
LOE Timer (2.3.6.)
Note
When a Loss of Echo occurs
Value (2.6.9.2.)
determines the material level to be reported
when LOE Timer expires. See Loss of Echo (LOE) (Page 250) for more detail.
Sets the time to elapse since the last valid reading, before the Fail-safe material level is
reported.
Values
Range:
0
to
720
seconds
Default: 100 s
Calibration (2.3.7)
Note
We recommend using the Quick Start wizard to configure the device.
Low Calibration Pt. (2.3.7.1.)
Distance from sensor reference point to Low Calibration Point (corresponding to Low Level
Point). Units are defined in
Unit (2.3.1.).
Parameter reference
SITRANS LR250 (PROFIBUS PA)
112 Operating Instructions, 08/2014, A5E32221386-AC
①
High level point (default: 100%)
⑥
Level offset (if used)
②
Low level point (default: 0%)
⑦
Low calibration point
a)
③
Sensor value
⑧
Sensor reference point
④
High calibration point
⑨
Far range
⑤
Level
a) Sensor reference point is the point from which level measurement is referenced. See
Threaded Horn Antenna with extension (Page 195), Flanged Horn with extension (Page 200),
and Flanged encapsulated antenna (3"/DN80/80A sizes and larger). (Page 206)
Values
Range:
0
to
20
m. Default 20.00 m
Related parameters
Unit (2.3.1.), Far Range (2.5.2.)
High Calibration Pt. (2.3.7.2.)
Distance from sensor reference point 1) to High Calibration Point (corresponding to High Level
Point). Units are defined in
Unit (2.3.1.).
Values
Range:
0
to
20
m. Default 0.00 m
Related parameters
Unit (2.3.1.), Near Range (2.5.1.)
When setting the High Calibration Point value, note that echoes are ignored within
Near Range
(2.5.1.).
1) The value produced by the echo processing which represents the distance from sensor
reference point to the target. [see Threaded Horn Antenna with extension, (Page 198) Flanged
Horn with extension (Page 202), and Flanged encapsulated antenna (3"/DN80/80A sizes and
larger) (Page 206)].
Parameter reference
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 113
Sensor Offset (2.3.7.3.)
A constant offset that can be added to or subtracted from the sensor value to compensate for a
shifted sensor reference point. (For example, when adding a thicker gasket or reducing the
standoff/nozzle height.) Sensor value is the value produced by the echo processing which
represents the distance from sensor reference point to the target. (see
Calibration (2.3.7.)
for an
illustration).The units are defined in
Unit (2.3.1.)
.
Values
Range:
-99.999
to
99.999.
Default: 0.00 m
Related parameters
Units (2.3.1.)
Low Level Point (2.3.7.4.)
The level when the material is at Low Calibration Point. The unit is defined in Level units.
Values
Range:
-999999.00
to
999999.00
. Default: 0%
High Level Point (2.3.7.5.)
The level when the material is at High Calibration Point. The unit is defined in Level units.
Values
Range:
-999999.00
to
999999.00
. Default: 100%
Level Offset (2.3.7.6.)
A constant offset that can be added to Level. The unit is defined in Level units.
Values
Range:
-999999.00
to
999999.00
. Default: 0%
Rate (2.3.8.)
Note
Default settings in the parameter tables are indicated with an asterisk (*) unless explicitly
stated.
Parameter reference
SITRANS LR250 (PROFIBUS PA)
114 Operating Instructions, 08/2014, A5E32221386-AC
Response Rate (2.3.8.1.)
Note
Changing Response Rate resets
Fill Rate (2.3.8.2)
,
Empty rate (2.3.8.3)
, and
Filter Time
Constant (2.6.8.1.)
.
Sets the reaction speed of the device to measurement changes.
Response Rate (2.3.8.1.)
Fill Rate (2.3.8.2.)
Empty rate (2.3.8.3.)
Filter Time Constant
(2.6.8.1.)
* Slow 0.1 m/min (0.32 ft/min) 10 s
Medium 1.0 m/min (3.28 ft/min) 10 s
Fast 10.0 m/min (32.8 ft/min) 0 s
Use a setting just faster than the maximum filling or emptying rate (whichever is faster).
Fill Rate (2.3.8.2.)
Defines the maximum rate at which the reported sensor value is allowed to decrease. Allows you
to adjust the SITRANS LR250 response to decreases in the actual material level. Fill Rate is
automatically updated whenever
Response rate (2.3.8.1.)
is altered.
Options
Range:
0 to 99999
m / min.
Response rate (2.3.8.1.)
Fill rate
* Slow 0.1 m/min (0.32 ft/min)
Medium 1.0 m/min (3.28 ft/min)
Fast 10.0 m/min (32.8 ft/min)
Altered by:
Response rate (2.3.8.1.)
Related parameters
Level unit (2.3.2.)
Enter a value slightly greater than the maximum vessel-filling rate, in units per minute.
Parameter reference
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 115
Empty Rate (2.3.8.3)
Defines the maximum rate at which the reported sensor value is allowed to increase. Adjusts the
SITRANS LR250 response to increases in the actual material level. Empty Rate is automatically
updated whenever
Response Rate (2.3.8.1.)
is altered.
Options
Range:
0 to 999999
m / min.
Response Rate (2.3.8.1.)
Empty Rate
* Slow 0.1 m/min (0.32 ft/min)
Medium 1.0 m/min (3.28 ft/min)
Fast 10.0 m/min (32.8 ft/min)
Altered by:
Response Rate (2.3.8.1)
Related parameters
Level Unit (2.3.2.)
Enter a value slightly greater than the vessel’s maximum emptying rate, in units per minute.
Linearization (2.4.)
Volume (2.4.1.)
Carries out a volume conversion from a level value.
Parameter reference
SITRANS LR250 (PROFIBUS PA)
116 Operating Instructions, 08/2014, A5E32221386-AC
Vessel Shape (2.4.1.1.)
Defines the vessel shape and allows the LR250 to calculate volume instead of level. If
None
is
selected, no volume conversion is performed. Select the vessel shape matching the monitored
vessel or reservoir.
Vessel Shape
LCD DISPLAY/ Description
Also required
* None NONE/
No volume calculation
required
N/A
CYLINDER/
Flat end horizontal cylinder
Maximum volume
SPHERE/
Sphere
Maximum volume
LINEAR/
Upright, linear (flat bottom)
Maximum volume
CONICAL BOT/
Conical or pyramidal
bottom
Maximum volume,
dimension A
PARABOLIC
BOT/Parabolic bottom
Maximum volume,
dimension A
HALF SPHERE BOT/
Half-sphere bottom
Maximum volume,
dimension A
Parameter reference
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 117
Vessel Shape
LCD DISPLAY/ Description
Also required
FLAT SLOPED BOT/
Flat sloped bottom
Maximum volume,
dimension A
PARABOLIC ENDS/
Parabolic end horizontal
cylinder
Maximum volume,
dimension A, dimension
L
LINEAR TABLE a) /
Linearization table
(level/volume breakpoints)
Maximum volume,
tables 1-32 level and
volume breakpoints
a) Linearization Table must be selected in order for level/volume values [see
XY
index (2.4.1.5.)] to be transferred.
Parameter reference
SITRANS LR250 (PROFIBUS PA)
118 Operating Instructions, 08/2014, A5E32221386-AC
Maximum Volume (2.4.1.2.)
The maximum volume of the vessel. Units are defined in
PV Units (volume/ level) (2.3.3.)
. Enter
the vessel volume corresponding to High Calibration Point. The volume calculation is based on
the maximum volume and scaled according to the vessel shape selected. If no vessel shape is
entered, the default is 100, and the reading will be a percentage value.
Values
Range:
0.0000
to
999999
Default: 100.0
Related Parameters
Low Calibration Pt. (2.3.7.1.)
High Calibration Pt. (2.3.7.2.)
Vessel Shape (2.4.1.1.)
For readings in volumetric units instead of percentage values:
1. Select a volumetric unit from
PV Units (volume/level) (2.3.3.)
.
2. Enter the vessel volume corresponding to High Calibration Point.
Dimension A (2.4.1.3.)
The height of the vessel bottom in Level Units when the bottom is conical, pyramidal, parabolic,
spherical, or flat -sloped. If the vessel is horizontal
with parabolic ends, the depth of the end. See
Vessel Shape (2.4.1.1.)
for an illustration.
Values
Range:
0.0000
to
999999
in Level Units
Default: 0.0
Related Parameters
Vessel Shape (2.4.1.1.)
Dimension L (2.4.1.4.)
Length of the cylindrical section of a horizontal parabolic end vessel, in Level Units. See
Vessel
Shape (2.4.1.1.)
for an illustration.
Values
Range:
0.0000
to
999999
in Level Units
Default: 0.0
Related Parameters
Vessel Shape (2.4.1.1.)
Parameter reference
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 119
XY index (2.4.1.5.)
Level/Volume breakpoints allow you to define a complex vessel shape as a series of segments.
A value is assigned to each level breakpoint and a corresponding value is assigned to each
volume breakpoint.
Volume values are defined in volume units and can be percent or volumetric; level values are
defined in level units, and can be percent or linear. See
Level Unit (2.3.2.)
and
PV Units
(volume/level) (2.3.3.)
.
Level values
Range:
-999999.00
to
999999.00
(m, cm, mm, ft, in, %)
Default: 0.0
Volume values
Range:
-999999.00
to
999999.00
(% or volumetric units)
Default: 0.0
Enter up to 32 level breakpoints, where the corresponding volume is known. The values
corresponding to 100% and 0% levels must be entered. The breakpoints can be ordered from
top to bottom, or the reverse.
Parameter reference
SITRANS LR250 (PROFIBUS PA)
120 Operating Instructions, 08/2014, A5E32221386-AC
Example (values are for example purposes only)
Breakpoint Number
Level value (m)
Volume value (l)
1 0 0
2 5 500
3 9 3000
4 19.5 8000
Entering breakpoints via the hand-held programmer:
1. The default for level values is percent: if you want to select units instead, navigate to
Setup
(2.) > Sensor (2.3.) > Level Unit (2.3.2.)
, and select the desired unit.
2. Navigate to
Setup (2.) > Sensor (2.3.) > PV Units (volume/level) (2.3.3.)
, and select the
desired volume units.
3. Go to
XY index (2.4.1.5.)
and enter the number of the breakpoint you wish to adjust: for
example, for breakpoint
1
enter
1
.
4. Go to
X value (2.4.1.6.)
and enter the level value for the breakpoint just identified.
5. Go to
Y value (2.4.1.7.)
and enter the volume value for the breakpoint just identified.
6. Repeat steps 3 to 5 until values have been entered for all required breakpoints.
X value (2.4.1.6.)
Y value (2.4.1.7.)
Parameter reference
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 121
Signal Processing (2.5.)
Note
Default settings in the parameter tables are indicated with an asterisk (*) unless explicitly
stated.
Near Range (2.5.1.)
The range in front of the device (measured from the sensor reference point) within which any
echoes will be ignored. (This is sometimes referred to as blanking or a dead zone.) The factory
setting is 50 mm (2") past the end of the antenna, and the default is dependent on the antenna
type and process connection. [See Dimension drawings (Page 195) for antenna heights.]
Values
Range:
0
to
20
m (0 to 65.6 ft)
Default depends on antenna type and process connection.
Examples:
1.5" threaded horn 185.3 mm (7.3")
4" horn with stainless steel flange
100 mm (4") extension 373.3 mm (14.7")
Related parameters
Units (2.3.1.)
Far Range (2.5.2.)
Note
Far Range can extend beyond the bottom of the vessel.
Allows the material level to drop below Low Calibration Point without generating a Loss of Echo
(LOE) state. See
Low Calibration Pt. (2.3.7.1.)
for an illustration.
Values
Range: Min. =
Low Calibration Pt.
Max. =
23
m (75.45 ft)
Default: Value for Low Calibration Pt. + 1 m (3.28 ft)
Related parameters
Units (2.3.1.)
Use this feature if the measured surface can drop below the Low calibration point in normal
operation.
Parameter reference
SITRANS LR250 (PROFIBUS PA)
122 Operating Instructions, 08/2014, A5E32221386-AC
Propogation Factor (2.5.3.)
Note
• When operating in a stillpipe, values for
CLEF Range (2.5.7.4.)
, and for the propagation
factor, should be set according to the pipe size. See the table below.
• For reliable results, the antenna size must be close to the pipe size.
Compensates for the change in microwave velocity due to propagation within a metal stillpipe
instead of in free space.
Values
Range: 0.3 to 1.0 depending on pipe size.
Default: 1.0000
Nominal Pipe Size
a) 40 mm (1.5") 50 mm (2") 80 mm (3") 100 mm (4")
Propagation Factor
0.9844 0.988 0.9935 0.9965
CLEF Range (2.5.7.4.)
Low calibration
point - 700 mm
(2.29 ft)b)
Low calibration
point - 700 mm
(2.29 ft)b)
Low calibration
point - 1000
mm (3.28 ft)b)
Low calibration
point - 1000 mm
(3.28 ft)b)
a) Since pipe dimensions may vary slightly, the propagation factor may also vary.
b) CLEF range covers the whole measurement range except first 700 or 1000 mm from unit
reference point (see A in graphic below)
Parameter reference
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 123
①
sensor reference point
③
low calibration point
②
air gap
④
CLEF range 2.5.7.4.
A
700 or 1000 mm
Note
Flanged encapsulated antenna
For Flanged encapsulated antenna (7ML5432) match the process connection size to the
pipe diameter whenever possible (for example, mount a DN80/3" flange on DN80/3" pipe).
Minimum Sensor Value (2.5.4.)
The minimum recorded Sensor value in units defined in
Unit (2.3.1.)
.
1. Open the menu
View – Device Diagnostics
, select Device Status, and click on the
Device
Status
tab.
2. Check
Sensor Peak Values
.
Maximum Sensor Value (2.5.5.)
The maximum recorded Sensor value in units defined in
Unit (2.3.1.)
.
1. Open the menu
View – Device Diagnostics
, select Device Status, and click on the
Device
Status
tab.
2. Check
Sensor Peak Values
.
Parameter reference
SITRANS LR250 (PROFIBUS PA)
124 Operating Instructions, 08/2014, A5E32221386-AC
Shots (2.5.6.)
The number of echo profile samples averaged to produce a measurement.
Values
Range:
1
to
25
Default: 25
Echo Select (2.5.7.)
Algorithm (2.5.7.1.)
Selects the algorithm to be applied to the echo profile to extract the true echo.
Options
*
tF
T
rue
F
irst echo
L
L
argest echo
BLF
B
est of
L
argest and
F
irst echo
Position Detect (2.5.7.2.)
Note
If a stillpipe is used, the setting for CLEF range is determined by the horn size: see
CLEF
Range (2.5.7.4.)
for a table of values.
Defines where on the echo the distance measurement is determined.
Options
Center
* Hybrid (Center and CLEF)
CLEF (Constrained Leading Edge Fit)
Related parameters
CLEF Range (2.5.7.4.)
If the vessel bottom is being reported as the level instead of the actual material level (at low level
conditions), or if the dielectric constant of the liquid to be monitored is less than 3, we
recommend setting Position Detect to Hybrid and
CLEF Range (2.5.7.4.)
to 0.5 m (1.64 ft).
Parameter reference
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 125
Echo Threshold (2.5.7.3.)
Sets the minimum echo confidence that the echo must meet in order to prevent a Loss of Echo
condition and the expiration of the Fail-safe (LOE) timer. When
Confidence (2.5.9.1.)
exceeds
Echo Threshold (2.5.7.3.)
, the echo is accepted as a valid echo and is evaluated.
Values
Range:
0
to
99
Default: 5
Related Parameters
Timer (2.3.6.)
Use this feature when an incorrect material level is reported.
CLEF Range (2.5.7.4.)
Note
CLEF Range is referenced from Low Calibration Point (process empty level).
The CLEF algorithm is used mainly to allow correct level reporting for low dK materials which
may otherwise cause an incorrect reading in an empty or almost empty vessel.
It is used from Low Calibration Point (process empty level ) up to the level defined by CLEF
Range (see illustration below). Above that point the Center algorithm is used. For more detail
see CLEF Range (Page 245).
Values
Range:
0
to
20
m (0 to 65.6 ft)
Default: 0.0 m
Related parameters
Position Detect (2.5.7.2.)
①
CLEF Range
②
Sensor reference point
③
Low calibration point (process empty level)
In applications with low dK materials we recommend setting CLEF Range to 0.5 m (1.64 ft) and
Position Detect (2.5.7.2.)
to Hybrid.
Parameter reference
SITRANS LR250 (PROFIBUS PA)
126 Operating Instructions, 08/2014, A5E32221386-AC
Sampling (2.5.8.)
Provides a method of checking the reliability of a new echo before accepting it as the valid
reading, based on numbers of samples above or below the currently selected echo.
Echo Lock (2.5.8.1.)
Note
Ensure the agitator is always running while SITRANS LR250 is monitoring the vessel, to
avoid stationary blade detection.
Selects the measurement verification process. See
Echo Lock (2.5.8.1.)
for more details.
Options
Lock Off (no verification)
Maximum Verification (not recommended for radar)
* Material Agitator
Total Lock (not recommended for radar)
Related parameters
Fill Rate (2.3.8.2.)
Empty rate (2.3.8.3.)
Sampling up (2.5.8.2.)
Sampling down (2.5.8.3.)
For radar applications, Material Agitator is the most often-used setting, to avoid agitator blade
detection.
Sampling Up (2.5.8.2.)
Specifies the number of consecutive echoes that must appear above the echo currently
selected, before the measurement is accepted as valid.
Values
Range:
1
to
50
Default: 5
Sampling Down (2.5.8.3.)
Specifies the number of consecutive echoes that must appear below the echo currently selected,
before the measurement is accepted as valid.
Values
Range:
1
to
50
Default: 2
Echo Quality (2.5.9.)
Parameter reference
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 127
Confidence (2.5.9.1.)
Indicates echo reliability: higher values represent better echo quality. The display shows the
echo confidence of the last measurement.
Echo Threshold (2.5.7.3.)
defines the minimum
criterion for echo confidence.
Values
(view only)
0
to
99
---- Shot not used
Related Parameters
Echo Threshold (2.5.7.3.)
Open the menu
Device – Echo Profile Utilities
and click on the tab
Echo Profile
.
Echo Strength (2.5.9.2.)
Displays the absolute strength (in dB above 1 μV rms) of the echo selected as the measurement
echo.
Values
(view only)
-22
to
99
Open the menu
Device – Echo Profile Utilities
and click on the tab
Echo Profile
.
TVT Setup (2.5.10.)
Note
Default settings in the parameter tables are indicated with an asterisk (*) unless explicitly
stated.
Parameter reference
SITRANS LR250 (PROFIBUS PA)
128 Operating Instructions, 08/2014, A5E32221386-AC
Auto False Echo Suppression (2.5.10.1.)
Used together with
Auto False Echo Suppression Range (2.5.10.2.)
to screen out false echoes
in a vessel with known obstructions. A ’learned TVT’ (time varying threshold) replaces the
default TVT over a specified range. See
Auto False Echo Suppression (Page 242) for a more
detailed explanation.
Note
• Make sure material level is below all known obstructions when Auto False Echo
Suppression is used to learn the echo profile. (An empty or almost empty vessel is
recommended.)
• Note the distance to material level when Auto False Echo learns the environment. Set
Auto False Echo Suppression Range to a shorter distance to avoid the material echo
being screened out.
• Set Auto False Echo Suppression and Auto False Echo Suppression Range during
startup, if possible.
• If the vessel contains an agitator it should be running.
• Before adjusting these parameters, rotate the device for best signal (lower false-echo
amplitude).
Before Auto False Echo Suppression
①
TVT Hover Level
④
echo marker
②
default TVT
⑤
material level
③
false echo
Parameter reference
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 129
After Auto False Echo Suppression
① false echo ④ material level
② learned TVT ⑤ default TVT
③ Auto False Echo Suppression
Range ⑥ echo marker
To set Auto False Echo Suppression via SIMATIC PDM:
Open the menu
Device – Echo Profile Utilities
and click on the tab
Auto False Echo
Suppression
. For more detailed instructions see Auto False Echo Suppression via SIMATIC
PDM (Page 246).
Parameter reference
SITRANS LR250 (PROFIBUS PA)
130 Operating Instructions, 08/2014, A5E32221386-AC
To set Auto False Echo Suppression via the handheld programmer:
Options
OFF Default TVT will be used.
* ON ’Learned’ TVT will be used.
LEARN ’Learn’ the TVT.
1. Determine Auto False Echo Suppression Range. Measure the actual distance from the
sensor reference point to the material surface using a rope or tape measure.
2. Subtract 0.5 m (20") from this distance, and use the resulting value.
3. Go to
Auto False Echo Suppression Range (2.5.10.2.)
and enter the value calculated in
step 2.
4. Go to
Auto False Echo Suppression (2.5.10.1.)
and press
RIGHT arrow
to open Edit Mode.
5. Select
Learn
. The device will automatically revert to
On
(Use Learned TVT) after a few
seconds.
Auto False Echo Suppression Range (2.5.10.2.)
Defines the endpoint of the Learned TVT distance. Units are defined in
Unit (2.3.1.)
.
Values
Range:
0.00
to
20.00
m
Default: 1.00 m
1. Press
RIGHT arrow
to open Edit mode.
2. Enter the new value and press
RIGHT arrow
to accept it.
3. Set
Auto False Echo Suppression (2.5.10.1.)
.
Hover Level (2.5.10.3.)
Defines how high the TVT (Time Varying Threshold) is placed above the noise floor of the echo
profile, as a percentage of the difference between the peak of the largest echo in the profile and
the noise floor. See
Auto False Echo Suppression (2.5.10.1.)
for an illustration.
Values
Range:
0
to
100
%
Default: 40%
When the device is located in the center of the vessel, the TVT hover level may be lowered to
increase the confidence level of the largest echo.
Parameter reference
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 131
Shaper Mode (2.5.10.4.)
Enables/disables
TVT shaper
(2.5.11.)
Options
ON
* OFF
TVT shaper (2.5.11.)
Note
• The range is –50 to 50 dB.
•
Shaper Mode (2.5.10.4.)
must be turned
ON
in order for TVT shaper points to be
transferred.
Adjusts the TVT (Time Varying Threshold) at a specified range (breakpoint on the TVT). This
allows you to reshape the TVT to avoid unwanted echoes. There are 40 breakpoints arranged in
5 groups. (We recommend using SIMATIC PDM to access this feature.)
To use TVT shaper via SIMATIC PDM:
1. Go to
Level Meter > Setup > Signal Processing > TVT setup > Shaper Mode
and select
On
.
2. Open the menu
Device – Echo Profile Utilities
and click on TVT Shaper. For more detail see
TVT Shaper via SIMATIC PDM (Page 86).
To use TVT shaper via LUI (local user interface):
1. Go to
Shaper Mode (2.5.10.4.)
and select
ON
.
2. In TVT shaper, go to
Breakpoints
1-9 (2.5.11.1.)
.
3. Open Breakpoint 1 and enter the TVT Offset value (between –50 and 50 dB).
4. Go to the next Breakpoint and repeat step 3 until all desired breakpoint values have been
entered.
Breakpoint 1-9 (2.5.11.1.)
Values
Range:
–50
to
50
dB
Default: 0 dB
Parameter reference
SITRANS LR250 (PROFIBUS PA)
132 Operating Instructions, 08/2014, A5E32221386-AC
Breakpoint 10-18 (2.5.11.2.)
Values
Range:
–50
to
50
dB
Default: 0 dB
Breakpoint 19-27 (2.5.11.3.)
Values
Range:
–50
to
50
dB
Default: 0 dB
Breakpoint 28-36 (2.5.11.4.)
Values
Range:
–50
to
50
dB
Default: 0 dB
Breakpoint 37-40 (2.5.11.5.)
Values
Range:
–50
to
50
dB
Default: 0 dB
AIFB1 (2.6.)
Note
Default settings in the parameter tables are indicated with an asterisk (*) unless explicitly
stated.
Static Revision No. (2.6.1.)
The revision level of the static data associated with Analog Input Function Block 1. The Static
Revision No. is updated whenever a configuration parameter is changed.
Actual mode (2.6.2.)
Used to request an operating mode from the Analog Input Function Block.
Options
* Auto Mode (AUTO)
Manual Mode (MAN)
Out of Service (O/S)
Parameter reference
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 133
Allows you to put the SITRANS LR250 into Out of Service Mode and then reset it to Auto Mode.
Manual Mode is used in conjunction with Simulation. See Simulation (Page 93). It should be
used only with SIMATIC PDM in order to benefit from all the features available.
Channel (2.6.3.)
Used to select between the different Level Transducer Block outputs.
Options
Level/Volume, Level, Distance
* Level/Volume
Label (2.6.4.)
User defined label.
Input Scaling (2.6.5.)
Parameter reference
SITRANS LR250 (PROFIBUS PA)
134 Operating Instructions, 08/2014, A5E32221386-AC
Upper Value (2.6.5.1.)
Defines the operational upper range value of the input value (Process Value Scale) in PV
(volume/level) Units. Process Value Scale normalizes the input value to a customer-defined
range.
Values
Range:
-999999
to
999999
Default: 100%
Provides Output values
(Out) to AIFB1 or AIFB2
Lower Value (2.6.5.2.)
Defines the operational lower range value of the input value (Process Value Scale) in PV
(volume/level) Units. Process Value Scale normalizes the input value to a customer-defined
range.
Values
Range:
-999999
to
999999
Default: 0%
Output Scaling (2.6.6.)
Scales the Process Variable. The function block parameter OUT SCALE contains the values of
the lower limit and upper limit effective range in AIFB1 units.
Upper Value (2.6.6.1.)
Defines the operational upper range value of the output value in AIFB1 units.
Values
Range:
-999999
to
999999
Default: 100%
Parameter reference
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 135
Lower Value (2.6.6.2.)
Defines the operational lower range value of the output value in AIFB1 units.
Values
Range:
-999999
to
999999
Default: 0%
Alarms and Warnings (2.6.7.)
Upper Limit Alarm (2.6.7.1.)
The setting for the upper alarm limit in AIFB1 units.
Values
Range:
-999999
to
999999
Default: 999999
Upper Limit Warning (2.6.7.2.)
The setting for the upper warning limit in AIFB1 units.
Values
Range:
-999999
to
999999
Default: 999999
Lower Limit Warning (2.6.7.3.)
The setting for the lower warning limit in AIFB1 units.
Values
Range:
-999999
to
999999
Default: -999999
Lower Limit Alarm (2.6.7.4.)
The setting for the lower alarm limit in AIFB1 units.
Values
Range:
-999999
to
999999
Default: -999999
Parameter reference
SITRANS LR250 (PROFIBUS PA)
136 Operating Instructions, 08/2014, A5E32221386-AC
Limit Hysteresis (2.6.7.5.)
Hysteresis is used to adjust the sensitivity of the trigger for alarm messages. It is used to
compensate when a process variable fluctuates around the same value as a limit. A high level
alarm occurs when a value exceeds an upper limit. The alarm’s status remains true until the
value drops below the limit minus the alarm hysteresis. The directions are reversed for low limit
detection.
Values
Range:
-999999
to
999999
Default: 0.50
Enter a value for the hysteresis here, to be used for all warnings and alarms. The units are the
same as the Output scale, i.e. AIFB1 units.
Display (2.6.8.)
Filter Time Constant (2.6.8.1.)
The time constant for the damping filter. The damping filter smooths out the response to a
sudden change in level. This is an exponential filter and the engineering unit is always in
seconds. See Damping (Page 249) for more detail.
Values
Range:
0
to
600
s
Default: 10 s
Unit (2.6.8.2.)
Note
Additional units are available in SIMATIC PDM.
Engineering unit to be displayed with the output value.
Values
m, cm, mm, ft, in, cu m, L, HL, cu in, cu ft, cu yd, gal, imp gal,
bushels, Bbl, Bbl liquid, percent, PA, Follow out unit
* percent
Out Unit Text (2.6.8.3.)
If the desired unit is not listed in
Unit (2.6.8.2.)
you can define it in
Out Unit Text (2.6.8.3.)
.
Parameter reference
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 137
Decimal point (2.6.8.4.)
The number of digits to display after the decimal point. (The LCD is limited to displaying two
decimal places in Measurement mode. In SIMATIC PDM up to seven decimal places may be
used to display measured values.)
Options
Range: 0, 1, 2, 3, 4, 5, 6, 7
Default: 2
Fail-safe Mode (2.6.9.)
Mode (2.6.9.1.)
Fail-safe Mode occurs if the status of the input value is bad, or if the device has been put into
Fail-safe mode using Simulation.
Mode
defines the material level to be reported when the LOE
(Loss of Echo) timer expires.
Options
SUB VALUE
Substitute value. Value (2.6.9.2.) used as
output value.
*
LAST VALUE
Last value. (Store last valid output value).
USE BAD
VALUE
Use bad value. (Calculated output value is
incorrect).
Value (2.6.9.2.)
Note
Fail-safe Mode (2.6.9.)
must be set to
Substitute Value
before
Value (2.6.9.2.)
can be
defined.
User-defined default for the Output Value, if sensor or sensor electronic fault is detected. Units
are defined in
Unit (2.6.8.2.)
.
Values
Range:
-999999
to
999999
Default: 0
AIFB2 (2.7.)
See
AIFB1 (2.6.):
the parameters for AIFB2 are identical.
Parameter reference
SITRANS LR250 (PROFIBUS PA)
138 Operating Instructions, 08/2014, A5E32221386-AC
Measured Values (2.8.)
Read only. Allows you to view measured values for diagnostic purposes. In SIMATIC PDM, open
the menu
View – Process Variables
.
Main Output (PV - Primary Value) (2.8.1.)
The value for level, or volume (if volume conversion is selected).
Output, no linearization (SV1 - Secondary Value 1) (2.8.2.)
The value for level.
Output, no level offset (SV2 - Secondary Value 2) (2.8.3.)
The value for distance.
Diagnostics (3.)
Parameter reference
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 139
Echo Profile (3.1.)
To request a profile via SIMATIC PDM:
Open the menu
Device – Echo Profile Utilities
. [See Echo Profile Utilities via SIMATIC PDM
(Page 84) for more detail.]
To request a profile via the handheld programmer:
① Echo confidence value ⑥ Measure icon, deselected
② Algorithm selection (tFirst echo) ⑦ Exit icon, selected
③ Distance value ⑧ Measure icon, selected
④ TVT curve ⑨ Exit icon, deselected
⑤ Material level
1. Navigate to
Level Meter > Diagnostics (3.) > Echo Profile (3.1.)
.
2. Press
RIGHT arrow
to request a profile. [See Requesting an Echo Profile (Page 66) for
more details.]
Parameter reference
SITRANS LR250 (PROFIBUS PA)
140 Operating Instructions, 08/2014, A5E32221386-AC
Fault Reset (3.2.)
Clears the following faults:
Fault code
Description
S3
Device Lifetime Reminder 1 (Maintenance Required)
S4
Device Lifetime Reminder 2 (Maintenance Demanded)
S6
Sensor Lifetime Reminder 1 (Maintenance Required)
S7
Sensor Lifetime Reminder 2 (Maintenance Demanded)
S8
Device Service Reminder 1 (Maintenance Required)
S9
Device Service Reminder 2 (Maintenance Demanded)
S12
Internal Temperature High
S17
Calibration Schedule Reminder 1 (Maintenance Required)
S18
Calibration Schedule Reminder 2 (Maintenance Demanded)
To clear a fault using the handheld programmer:
● Enter the fault code number then press
RIGHT arrow
.
To clear a fault via SIMATIC PDM:
1. Open the menu
Device – Acknowledge Faults
.
2. Select the fault to be cleared from the pull-down menu in Extended Diagnostics.
3. Click on
Transfer
to clear the fault.
Electronics Temperature (3.3.)
Minimum Value (3.3.1.)
The minimum recorded internal electronics temperature of the SITRANS LR250.
Maximum Value (3.3.2.)
The maximum recorded internal electronics temperature of the SITRANS LR250.
Parameter reference
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 141
Condensed Status (3.4.)
When
Enable (3.4.1.)
is enabled, you can select the level of severity of errors, and tailor a device
response appropriate for your particular process.
● In
Event Index (3.5.1.)
you can select a particular event or error by means of its index
number.
● In
Event Status (3.5.2.)
you can assign a status to the selected event.
● In
Event Diagnosis (3.5.3.)
you can assign a diagnosis to the selected event.
Enable (3.4.1.)
Note
When cyclic communication is in progress, Condensed Status Mode cannot be changed.
Options
NO (disabled)
* YES (enabled)
Select
Yes
or
No
to enable/disable Condensed Mode.
Features supported (3.4.2.)
Read only. Features supported are:
● Condensed Diagnostics
● Extended Diagnostics
● Application Relationships
Features enabled (view only) (3.4.3.)
Read only. Lists those features that have been enabled.
Allocation (3.5.)
Parameter reference
SITRANS LR250 (PROFIBUS PA)
142 Operating Instructions, 08/2014, A5E32221386-AC
Event Index (3.5.1.)
The numeric component of the Event Code for a Condensed Status event. Use the index
number to identify a particular event in the list below.
Event index
Event code
Event descriptiona)
0
S0
Loss of Echo
2
S2
No Tech Power
10
S10
Level Transducer Block (LTB) Scale
11
S11
Internal Temperature Sensor
12
S12
Internal Temperature High
14
S14
AIFB1 PV Range
15
S15
AIFB2 PV Range
28
S28
Memory RAM
29
S29
Memory EEPROM
30
S30
Memory EEPROM Flags
31
S31
Memory Flash
33
S33
Internal Temperature Calibration
34
S34
Velocity Calibration
35
S35
Receiver Init Calibration
36
S36
Receiver Calibration
37
S37
Technology Module Calibration
38
S38
Technology Module Ramp
a) See General Fault Codes (Page 181) for the meaning of each event.
For example:
Event Code for Loss of Echo = S0
Event Index = 0
To select a particular event via the handheld programmer:
1. Go to
Enable (3.4.1.)
and select
Yes
to enable Condensed Mode.
2. Go to
Event Index (3.5.1.)
and enter the event index number corresponding to the event.
To select a particular event via SIMATIC PDM:
1. Go to
Diagnostics > Condensed Status Setup > Condensed Status Mode
and select
Yes
to
enable
Condensed Mode.
2. Go to
Diagnostics > Condensed Status
.
3. For each event, you can select either the Status or the Diagnosis line, then choose a Status
or Diagnosis option from the associated pull-down menu.
Parameter reference
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 143
Event Status (3.5.2.)
Event Status allows you to assign one of the status options listed below, to any of the events
listed in
Event Index (3.5.1.).
This allows you to tailor a device response appropriate for your
particular process. (Event status affects Condensed status). See Condensed Status (Page 281)
for more details.
Event Status options
Good
Good: maintenance required
Good: maintenance demanded
Uncertain: maintenance demanded
* Bad: maintenance alarm
Uncertain: process related, no maintenance
Bad: process related, no maintenance
Bad: function check/local override
Good: function check
To assign a status to a particular event via the handheld programmer:
1. Go to
Enable (3.4.1.)
and select
Yes
to enable Condensed Mode.
2. Go to
Event Index (3.5.1.)
and enter the event index number corresponding to a particular
event.
3. Go to
Event Status (3.5.2.)
and choose a Status option from the table above.
To assign a status to a particular event via SIMATIC PDM:
1. Go to
Level Meter > Diagnostics > Condensed Status Setup
, select
Yes
to enable
Condensed Status Mode.
2. Go to
Level Meter > Diagnostics > Condensed Status
.
3. Select the Status line for the selected Event, then choose a Status option from the associated
pull-down menu.
Parameter reference
SITRANS LR250 (PROFIBUS PA)
144 Operating Instructions, 08/2014, A5E32221386-AC
Event Diagnosis (3.5.3.)
Allows you to assign one of the diagnostic options listed below to any of the events listed in
Event Index (3.5.1.)
. This allows you to tailor a device response appropriate for your particular
process.(Event Diagnosis affects Condensed Acyclic Diagnostics and Cyclic Extended
Diagnostics). See Condensed Mode Diagnosis (Page 285) for more detail.
Event Diagnosis Options
Status OK
Maintenance Required
Maintenance Demanded
* Maintenance alarm
Invalid process conditions
Function check or simulation
To assign a diagnosis to a particular event via the handheld programmer:
1. Go to
Enable (3.4.1.)
and select
Yes
to enable Condensed Mode.
2. Go to
Event Index (3.5.1.)
and enter the event index number corresponding to a particular
event.
3. Go to
Event Diagnosis (3.5.3.)
and choose a Diagnosis option from the table above.
To assign a status to a particular event via SIMATIC PDM:
1. Go to
Level Meter > Diagnostics > Condensed Status Setup
, and select
Yes
to enable
Condensed Status Mode.
2. Go to
Level Meter > Diagnostics > Condensed Status
.
3. Select the Diagnosis line for the selected Event, then choose a Diagnosis option from the
associated pull-down menu.
Peak Values (3.6.)
To view via SIMATIC PDM:
Open the menu
View – Device Diagnostics
, select
Device Status
, and click on the tab
Device
Status
. For more details see Device Diagnostics (Page 101).
Min. Measured Value (3.6.1.)
The minimum recorded Sensor value, reported in units defined in
Unit (2.3.1.)
.
Max. Measured Value (3.6.2.)
The maximum recorded Sensor value, reported in units defined in
Unit (2.3.1.)
.
Parameter reference
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 145
Minimum Output Value - AIFB1 (3.6.3.)
The minimum recorded Output Value from the Analog Input Function Block 1.
Maximum Output Value - AIFB1 (3.6.4.)
The maximum recorded Output Value from the Analog Input Function Block 1.
Minimum Output Value - AIFB2 (3.6.5.)
The minimum recorded Output Value from the Analog Input Function Block 2.
Maximum Output Value - AIFB2 (3.6.6.)
The maximum recorded Output Value from the Analog Input Function Block 2.
Service (4.)
Note
Default settings in the parameter tables are indicated with an asterisk (*) unless explicitly
stated.
Parameter reference
SITRANS LR250 (PROFIBUS PA)
146 Operating Instructions, 08/2014, A5E32221386-AC
Master Reset (4.1.)
Note
Following a Factory Reset, some degree of reprogramming may be required, depending on
the option chosen below.
Reset options
Result
Factory Defaults Resets all user parameters to the manufacturer’s default settings, with
certain exceptions. The list of exceptions includes, but is not limited to:
• Tag
• Message
• Descriptor
• Installation Data
• Device Address
• Write Protection
• Auto False Echo Suppression Range
• learned TVT
Standard Defaults Resets all resettable parameters excluding device addresses to the
PROFIBUS standard default settings.
Informational Resets Tag parameter.
Functional Resets parameters that control device behavior and functionality (such as
calibration points)
Warm Start Has the same effect as recycling power to the device
Reset Address to
126
Resets the PROFIBUS device address to 126
If the address lock was on, will disable the lock.
To access via SIMATIC PDM:
Open the menu
Device – Master Reset
. For more detail see Master Reset (Page 97).
To perform a reset via the handheld programmer:
1. Press
RIGHT Arrow
to open Edit Mode then scroll down to the desired Reset option and
press
RIGHT Arrow
to select it.
2. Press
LEFT Arrow
to exit.
Parameter reference
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 147
Remaining Device Lifetime (4.2.)
Note
• Default settings in the parameter tables are indicated with an asterisk (*) unless explicitly
stated.
• Four sets of parameters allow you to monitor the Device/Sensor Lifetimes and set up
Service/Calibration schedules, based on operating hours instead of a calendar-based
schedule. See also
Remaining Sensor Lifetime (4.3.)
,
Service Schedule (4.4.)
, and
Calibration Schedule (4.5.)
.
• Performing a reset to
Factory Defaults
will reset all the Maintenance Schedule
parameters to their factory defaults.
• The device operates in years. To view Remaining Device Lifetime parameters in hours or
days (via SIMATIC PDM only) see
Lifetime Expected (4.2.1.)
.
The device tracks itself based on operating hours and monitors its predicted lifetime. You can
modify the expected device lifetime, set up schedules for maintenance reminders, and
acknowledge them.
The maintenance warnings and alarms are communicated via the Status byte. This information
can be integrated into an Asset Management system. For optimal use, we recommend that you
use SIMATIC PCS7 Asset Management Software in conjunction with SIMATIC PDM.
Parameter reference
SITRANS LR250 (PROFIBUS PA)
148 Operating Instructions, 08/2014, A5E32221386-AC
To access these parameters via SIMATIC PDM:
● Open the menu
Device – Maintenance
and select the
Remaining Device Lifetime
tab.
● After modifying values/units as required, click on
Write
to accept the change, and
Read
to
view the effect of the change.
● Click on
Snooze
to add a year to the Total Expected Device Life.
Time Units
Options
a) Hours; days; years
Default: years
a)
Selectable only via SIMATIC PDM.
Lifetime Expected (4.2.1.)
Note
Note: The device always operates in years. Changing the units affects only the parameter
view of the Remaining Device Lifetime parameters in SIMATIC PDM.
Allows you to override the factory default.
Values
Units a): hours, days, years
Range:
0
to
20
years
Default: 10.00 years
a) Units are selectable only via SIMATIC PDM.
Time in Operation (4.2.2.)
Read only. The amount of time the device has been operating.
Remaining Lifetime (4.2.3.)
Read only.
Lifetime Expected (4.2.1.)
less
Time in Operation (4.2.2.).
Reminder Activation (4.2.4.)
Note
To modify this parameter via SIMATIC PDM it must be accessed via the pull-down menu
Device – Maintenance
.
Parameter reference
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 149
Allows you to enable a maintenance reminder.
Values
Reminder 1 (Maintenance Required)
Reminder 2 (Maintenance Demanded)
Reminders 1 and 2
* OFF
1. First set the values in
Reminder 1 (Required) (4.2.5.)
/
Reminder 2 (Demanded) (4.2.6.)
.
2. Select the desired
Reminder Activation
option.
Reminder 1 (Required) (4.2.5.)
If
Remaining Lifetime (4.2.3.)
is equal to or less than this value, the device generates a
Maintenance Required reminder.
Values
Range:
0
to
20
years
Default: 0.164 years
1. Modify values as required.
2. Set
Reminder Activation (4.2.4.)
to the desired option.
Reminder 2 (Demanded) (4.2.6.)
If
Remaining Lifetime (4.2.3.)
is equal to or less than this value, the device generates a
Maintenance Demanded reminder.
Values
Range:
0
to
20
years
Default: 0.019 years
1. Modify limit values as required.
2. Set
Reminder Activation (4.2.4.)
to the desired option.
Parameter reference
SITRANS LR250 (PROFIBUS PA)
150 Operating Instructions, 08/2014, A5E32221386-AC
Maintenance Status (4.2.7.)
Indicates which level of maintenance reminder is active.
In SIMATIC PDM, open the menu
View – Device Diagnostics,
select
Device Status
, click on the
Maintenance
tab, and check the
Device Lifetime Status
window.
Acknowledge Status (4.2.8.)
Indicates which level of maintenance reminder has been acknowledged.
In SIMATIC PDM, open the menu
View – Device Diagnostics,
select
Device Status
, click on the
Maintenance
tab, and check the
Device Lifetime Status
window.
Acknowledge (4.2.9.)
Acknowledges the current maintenance reminder.
To acknowledge a reminder via SIMATIC PDM:
1. Open the menu
View – Device Diagnostics,
select
Device Status
and click on the
Maintenance
tab.
2. In the
Device Lifetime
section, click on
Acknowledge Warnings
.
To acknowledge a reminder via the handheld programmer:
1. Press
RIGHT arrow
twice to open parameter view and activate
Edit
Mode.
2. Press
RIGHT arrow
to acknowledge the reminder.
Parameter reference
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 151
Remaining Sensor Lifetime (4.3.)
Note
• Default settings in the parameter tables are indicated with an asterisk (*) unless explicitly
stated.
• Four sets of parameters allow you to monitor the Device/Sensor Lifetimes and set up
Maintenance/Service schedules, based on operating hours instead of a calendar-based
schedule. See also
Remaining Device Lifetime (4.2.), Service Schedule (4.4.)
,
and
Calibration Schedule (4.5.)
.
• Performing a reset to
Factory Defaults
will reset all the Maintenance Schedule
parameters to their factory defaults.
• The device operates in years. To view Remaining Sensor Lifetime parameters in ho
urs or
days (via SIMATIC PDM only) see
Lifetime Expected (4.3.1.)
.
Parameter reference
SITRANS LR250 (PROFIBUS PA)
152 Operating Instructions, 08/2014, A5E32221386-AC
The device monitors the predicted lifetime of the sensor (the components exposed to the vessel
environment). You can modify the expected sensor lifetime, set up schedules for maintenance
reminders, and acknowledge them.
To access these parameters via SIMATIC PDM:
● Open the menu
Device – Maintenance
and select the
Remaining Sensor Lifetime
tab.
● After modifying values/units as required, click on
Write
to accept the change, and
Read
to
view the effect of the change.
● Click on
Snooze
to add a year to the Total Expected Sensor Life.
● Click on
Sensor Replaced
to restart the timer and clear any fault messages.
Time Units
Options
a) Hours; days; years
Default: years
a) Selectable only via SIMATIC PDM.
Parameter reference
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 153
Lifetime Expected (4.3.1.)
Note
The device always operates in years. Changing the units affects only the parameter view of
Remaining Sensor Life parameters in SIMATIC PDM.
Allows you to override the factory default.
Values
Units a): hours, days, years
Range:
0
to
20
years
Default: 10.00 years
a)
Units are selectable only via SIMATIC PDM.
Time in Operation (4.3.2.)
The amount of time the sensor has been operating. Can be reset to zero after performing a
service or replacing the sensor.
To reset to zero:
● In SIMATIC PDM, open the menu
Device – Maintenance
, click on the
Remaining Sensor
Lifetime
tab, and click on
Sensor Replaced
to restart the timer and clear any fault messages.
● Via the handheld programmer, manually reset
Time in Operation (4.3.2.)
to zero.
Remaining Lifetime (4.3.3.)
Read only.
Lifetime Expected (4.3.1.)
less
Time in Operation (4.3.2.)
.
Parameter reference
SITRANS LR250 (PROFIBUS PA)
154 Operating Instructions, 08/2014, A5E32221386-AC
Reminder Activation (4.3.4.)
Note
To modify this parameter via SIMATIC PDM it must be accessed via the pull-down menu
Device – Maintenance
.
Allows you to enable a maintenance reminder.
Options
Reminder 1 (Maintenance Required)
Reminder 2 (Maintenance Demanded)
Reminders 1 and 2
* OFF
1. First set the values in
Reminder 1 (Required) (4.3.5.)
/
Reminder 2 (Demanded) (4.3.6.)
.
2. Select the desired
Reminder Activation
option.
Reminder 1 (Required) (4.3.5.)
If
Remaining Lifetime (4.3.3.)
is equal to or less than this value, the device generates a
Maintenance Required
reminder.
Values
Range:
0
to
20
years
Default: 0.164 years
1. Modify values as required.
2. Set
Activation Reminder (4.3.4.)
to the desired option.
Reminder 2 (Demanded) (4.3.6.)
If
Remaining Lifetime (4.3.3.)
is equal to or less than this value, the device generates a
Maintenance Demanded
reminder.
Values
Range:
0
to
20
years
Default: 0.019 years
1. Modify values as required.
2. Set
Reminder Activation (4.3.4.)
to the desired option.
Parameter reference
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 155
Maintenance Status (4.3.7.)
Indicates which level of maintenance reminder is active.
In SIMATIC PDM, open the menu
View – Device Diagnostics,
select
Device Status
, click on the
Maintenance
tab, and check the
Sensor Lifetime Status
window.
Acknowledge Status (4.3.8.)
Indicates which level of maintenance reminder has been acknowledged.
In SIMATIC PDM, open the menu
View – Device Diagnostics,
select
Device Status
, click on the
Maintenance
tab, and check the
Sensor Lifetime Status
window.
Acknowledge (4.3.9.)
Acknowledges the current maintenance reminder.
To acknowledge a reminder via SIMATIC PDM:
1. Open the menu
View – Device Diagnostics,
select
Device Status
and click on the
Maintenance
tab.
2. In the
Sensor Lifetime
section, click on
Acknowledge Warnings
.
To acknowledge a reminder via the handheld programmer:
1. Press
RIGHT arrow
twice to open parameter view and activate
Edit
Mode.
2. Press
RIGHT arrow
to acknowledge the reminder.
Service Schedule (4.4.)
Note
• Four sets of parameters allow you to monitor the Device/Sensor Lifetimes and set up
Service/Calibration schedules, based on operating hours instead of a calendar-based
schedule. See also
Remaining Device Lifetime (4.2.)
,
Remaining Sensor Lifetime (4.3.)
,
and
Calibration Schedule (4.5.)
.
• Performing a reset to
Factory Defaults
will reset all the Maintenance Schedule
parameters to their factory defaults.
• The device operates in years. To view Service Interval parameters in hours or days (via
SIMATIC PDM only) see
Service interval (4.4.1.)
.
The device tracks service intervals based on operating hours and monitors the predicted lifetime
to the next service. You can modify the Total Service Interval, set schedules for maintenance
reminders, and acknowledge them.
Parameter reference
SITRANS LR250 (PROFIBUS PA)
156 Operating Instructions, 08/2014, A5E32221386-AC
The maintenance warnings and alarms are communicated via the Status byte. This information
can be integrated into any Asset Management system. For optimal use, we recommend that you
use SIMATIC PCS7 Asset Management Software in conjunction with SIMATIC PDM.
To access these parameters via SIMATIC PDM:
● Open the menu
Device – Maintenance
and select the
Service Schedule
tab.
● After modifying values/units as required, click on
Write
to accept the change, and
Read
to
view the effect of the change.
● Click on
Service Performed
to restart the timer and clear any fault messages.
Time Units
Options
a) Hours; days; years
Default: years
a) Selectable only via SIMATIC PDM.
Service Interval (4.4.1.)
Note
The device always operates in years. Changing the units affects only the parameter view of
the Service Interval parameters in SIMATIC PDM.
User-configurable recommended time between product inspections.
Parameter reference
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 157
Values
Units a): hours, days, years
Range:
0
to
20
years
Default: 1.0 year
a)
Units are selectable only via SIMATIC PDM.
Time since Last Service (4.4.2.)
Time elapsed since last service. Can be reset to zero after performing a service.
To reset to zero:
● In SIMATIC PDM, open the menu
Device – Maintenance
, click on the
Service Schedule
tab,
and click on
Service Performed
to restart the timer and clear any fault messages.
● Via the handheld programmer, manually reset
Time since Last Service (4.4.2.)
to zero.
Time until Next Service (4.4.3.)
Read only.
Service Interval (4.4.1.)
less
Time since Last Service (4.4.2.)
.
Parameter reference
SITRANS LR250 (PROFIBUS PA)
158 Operating Instructions, 08/2014, A5E32221386-AC
Reminder Activation (4.4.4.)
Note
To modify this parameter via SIMATIC PDM it must be accessed via the pull-down menu
Device – Maintenance
.
Allows you to enable a maintenance reminder.
Options
* Timer OFF
ON - no reminders checked
ON - Reminder 1 (Maintenance Required) checked
ON - Reminders 1 and 2 checked
ON - Reminder 2 (Maintenance Demanded) checked
1. First set the values in
Reminder 1 (Required) (4.4.5.)
/
Reminder 2 (Demanded) (4.4.6.)
.
2. Select the desired
Reminder Activation
option.
Reminder 1 (Required) (4.4.5.)
If
Time until Next Service (4.4.3.)
is equal to or less than this value, the device generates a
Maintenance Required
reminder.
Values
Range:
0
to
20
years
Default: 0.164 years
1. Modify values as required.
2. Set
Activation Reminder (4.4.4.)
to the desired option.
Reminder 2 (Demanded) (4.4.6.)
If
Time until Next Service (4.4.3.)
is equal to or less than this value, the device generates a
Maintenance Demanded
reminder.
Values
Range:
0
to
20
years
Default: 0.019 years
1. Modify values as required
2. Set
Reminder Activation (4.4.4.)
to the desired option.
Parameter reference
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 159
Maintenance Status (4.4.7.)
Indicates which level of maintenance reminder is active.
Open the menu
View – Device Diagnostics,
select
Device Status
, click on the
Maintenance
tab
and check the
Service Schedule Status
window.
Acknowledge Status (4.4.8.)
Indicates which level of maintenance reminder has been acknowledged.
Open the menu
View – Device Diagnostics,
select
Device Status
, click on the
Maintenance
tab
and check the
Service Schedule Status
window.
Acknowledge (4.4.9.)
Acknowledges the current maintenance reminder.
To acknowledge a reminder via SIMATIC PDM:
1. Open the menu
View – Device Diagnostics,
select
Device Status
and click on the
Maintenance
tab.
2. In the
Service Schedule Status
section, click on
Acknowledge Warnings
.
To acknowledge a reminder via the handheld programmer:
1. Press
RIGHT arrow
twice to open parameter view and activate
Edit
Mode.
2. Press
RIGHT arrow
to acknowledge the reminder.
Parameter reference
SITRANS LR250 (PROFIBUS PA)
160 Operating Instructions, 08/2014, A5E32221386-AC
Calibration Schedule (4.5.)
Note
• Default settings in the parameter tables are indicated with an asterisk (*) unless explicitly
stated.
• Four sets of parameters allow you to monitor the Device/Sensor Lifetimes and set up
Service/Calibration schedules, based on operating hours instead of a calendar-based
schedule. See also
Remaining Device Lifetime (4.2.)
,
Remaining Sensor Lifetime (4.3.)
,
and
Service Schedule (4.4.)
.
• Performing a reset to
Factory Defaults
will reset all the Maintenance Schedule
parameters to their factory defaults.
• The device operates in years. To view Calibration Interval parameters in hours or days
(via SIMATIC PDM only) see
Calibration Interval (4.5.1.)
.
The device tracks calibration intervals based on operating hours and monitors the predicted
lifetime to the next calibration. You can modify the Total Calibration Interval, set schedules for
maintenance reminders, and acknowledge them.
To access these parameters via SIMATIC PDM:
● Open the menu
Device – Maintenance
and select the
Calibration Schedule
tab.
● After modifying values/units as required, click on
Write
to accept the change, and
Read
to
view the effect of the change.
● Click on
Calibration Performed
to restart the timer and clear any fault messages.
Parameter reference
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 161
Time Units
Options
a) Hours; days; years
Default: years
a) Selectable only via SIMATIC PDM.
Calibration Interval (4.5.1.)
Note
The device always operates in years. Changing the units affects only the parameter view of
the Calibration Interval parameters in SIMATIC PDM.
User-configurable recommended time between product calibrations.
Values
Units a): hours, days, years
Range:
0
to
20
years
Default: 1.0 year
a)
Units are selectable only via SIMATIC PDM.
Time since Last Calibration (4.5.2.)
Time elapsed since last calibration. Can be reset to zero after performing a calibration.
To reset to zero:
● In SIMATIC PDM, open the menu
Device – Maintenance
, click on the
Calibration Schedule
tab, and click on
Calibration Performed
to restart the timer and clear any fault messages.
● Via the handheld programmer, manually reset
Time since Last Calibration (4.5.2.)
to zero.
Time until Next Calibration (4.5.3.)
Read only.
Calibration Interval (4.5.1.)
less
Time since Last Calibration (4.5.2.)
.
Parameter reference
SITRANS LR250 (PROFIBUS PA)
162 Operating Instructions, 08/2014, A5E32221386-AC
Reminder Activation (4.5.4.)
Note
To modify this parameter via SIMATIC PDM it must be accessed via the pull-down menu
Device – Maintenance
.
Allows you to enable a maintenance reminder.
Options
* Timer OFF
ON - no reminders checked
ON - Reminder 1 (Maintenance Required) checked
ON - Reminders 1 and 2 checked
ON—Reminder 2 (Maintenance Demanded) checked
1. First set the values in
Reminder 1 (Required) (4.5.5.)
/
Reminder 2 (Demanded) (4.5.6.)
.
2. Select the desired
Reminder Activation
option.
Reminder 1 (Required) (4.5.5.)
If
Time until Next Calibration (4.5.3.)
is equal to or less than this value, the device generates a
Maintenance Required
reminder.
Values
Range:
0
to
20
years
Default:
0.164
years
1. Modify values as required.
2. Set
Reminder Activation (4.5.4.)
to the desired option.
Reminder 2 (Demanded) (4.5.6.)
If
Time until Next Calibration (4.5.3.)
is equal to or less than this value, the device generates a
Maintenance Demanded
reminder.
Values
Range:
0
to
20
years
Default:
0.019
years
1. Modify values as required.
2. Set
Reminder Activation (4.5.4.)
to the desired option.
Parameter reference
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 163
Maintenance Status (4.5.7.)
Indicates which level of maintenance reminder is active.
In SIMATIC PDM, open the menu
View – Device Diagnostics,
select
Device Status
, click on the
Maintenance
tab and check the
Calibration Schedule Status
window.
Acknowledge Status (4.5.8.)
Indicates which level of maintenance reminder has been acknowledged.
In SIMATIC PDM, open the menu
View – Device Diagnostics,
select
Device Status
, click on the
Maintenance
tab and check the
Calibration Schedule Status
window.
Acknowledge (4.5.9.)
Acknowledges the current maintenance reminder.
To acknowledge a reminder via SIMATIC PDM:
1. Open the menu
View – Device Diagnostics,
select
Device Status
and click on the
Maintenance
tab.
2. In the
Calibration Schedule Status
section click on
Acknowledge Warnings
.
To acknowledge a reminder via the handheld programmer:
1. Press
RIGHT arrow
twice to open parameter view and activate
Edit
Mode.
2. Press
RIGHT arrow
to acknowledge the reminder.
Manufacture Date (4.6.)
Read only. The date of manufacture of the SITRANS LR250 (yy mm dd).
Powered Hours (4.7.)
Read only. Displays the number of hours the unit has been powered up since manufacture.
In SIMATIC PDM, open the menu
Device – Wear
.
Power-on Resets (4.8.)
Read only. The number of power cycles that have occurred since manufacture.
In SIMATIC PDM, open the menu
Device – Wear
.
Parameter reference
SITRANS LR250 (PROFIBUS PA)
164 Operating Instructions, 08/2014, A5E32221386-AC
LCD Fast Mode (4.9.)
Note
• LCD Fast Mode takes effect only after 30 minutes of inactivity. (Each time the device is
powered up, a further 30 minutes of inactivity is required.)
• LCD Fast Mode affects Measurement mode only; it has no effect on Navigation mode.
Enables a faster rate of measurement from the device by disabling most of the display area.
Only the bar graph will be refreshed when LCD Fast Mode is set to ON.
Values
ON
*
OFF
LCD Contrast (4.10.)
The factory setting is for optimum visibility at room temperature and in average light conditions.
Extremes of temperature will lessen the contrast.
Values
Range:
0
(High contrast) to
20
(Low contrast). Default: 10
Adjust the value to improve visibility at different temperatures and in light conditions. Change the
value in small steps to ensure you can continue to read the display.
Communication (5.)
Note
Default settings in the parameter tables are indicated with an asterisk (*) unless explicitly
stated.
Parameter reference
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 165
Device Address (5.1.)
Note
The address can be changed and locked from a remote master. See PROFIBUS address
(Page 276) for details on disabling the address lock and
Master Reset (4.1.)
to reset Device
Address to 126.
Sets the unique address of the device on the network (also called PROFIBUS address).
Values
0
-
126
. Default: 126
To set Device Address via SIMATIC PDM:
● Open the project in
Process Device Network View
then right-click on the device.
● Go to
Object Properties > Connection
to access the field
Short Address.
To change Device Address via the handheld programmer:
See Device Address
for details.
PROFIBUS Ident Number (5.2.)
Identifies the device on the network. The Ident Number must match that in the GSD file (the
GSD file provides information on the device to the master).
Options
STD PROFILE
Standard Profile (uses generic GSD for 2 AIFB)
[ident # = 0x9701]
*
MANUFACTURER
Manufacturer-specific (uses Siemens EDD and
GSD file, which identifies the LR250 PROFIBUS
PA [ident # = 0x8150]
STD – AIFB 1
ONL.
Standard Profile AIFB 1 only (uses generic GSD
for 1 AIFB) [ident # = 0x9700]
Security (6.)
Note
Default settings in the parameter tables are indicated with an asterisk (*) unless explicitly
stated.
Parameter reference
SITRANS LR250 (PROFIBUS PA)
166 Operating Instructions, 08/2014, A5E32221386-AC
Remote Access (6.1.)
Remote Lockout (6.1.1.)
Note
If access control is changed to limit remote access, it can be reset only via the handheld
programmer.
Enables or disables programming via the network and PDM.
Option
s * OFF (Remote operation enabled)
ON (Remote operation disabled)
Local Access (6.2.)
Write Protection (6.2.1.)
Note
Do not lose this number value.
Prevents any changes to parameters via PDM or the hand-held programmer.
Hand-held
programmer values
Range:
0
to
99999.
Default:
Off
2457 (unlock value) Off (enables programming)
any other value On (disables programming)
Local Operation (6.2.2.)
Enables or disables programming via the hand-held programmer.
Options
* ENABLED
DISABLED
In SIMATIC PDM, open the menu
Device – Write Locking
, select
On
or
Off
, and click on
Transfer
.
Parameter reference
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 167
Language (7.)
Selects the language to be used on the LCD.
Options
* English
Deutsch
Français
Español
8.1
Alphabetical parameter list
Note
For a detailed list of parameters see Parameter Reference (Page 107).
Actual Mode (2.6.2.)
AIFB1 (2.6.)
AIFB2 (2.7.)
Alarms and Warnings (2.6.7.)
Algorithm (2.5.7.1.)
Allocation (3.5.)
Auto False Echo Suppression (2.5.10.1.)
Auto False Echo Suppression Range (2.5.10.2.)
Calibration (2.3.7.)
Calibration Schedule (4.5.)
Channel (2.6.3.)
CLEF Range (2.5.7.4.)
Condensed Status (3.4.)
Confidence (2.5.9.1.)
Descriptor (2.1.2.)
Device Address (5.1.)
Dimension A (2.4.1.3.)
Dimension L (2.4.1.4.)
Parameter reference
SITRANS LR250 (PROFIBUS PA)
168 Operating Instructions, 08/2014, A5E32221386-AC
Display (2.6.8.)
Echo Lock (2.5.8.1.)
Echo Profile (3.1.)
Echo Quality (2.5.9.)
Echo Select (2.5.7.)
Echo Strength (2.5.9.2.)
Electronics Temperature (3.3.)
Empty rate (2.3.8.3.)
Event Index (3.5.1.)
Event Status (3.5.2.)
Event Diagnosis (3.5.3.)
Fail-safe Mode (2.6.9.)
Far Range (2.5.2.)
Fault Reset (3.2.)
Fill Rate (2.3.8.2.)
Filter Time Constant (2.6.8.1.)
Firmware Revision (2.2.2.)
Hardware Revision (2.2.1.)
High Calibration Pt. (2.3.7.2.)
High Level Point (2.3.7.5.)
Hover Level (2.5.10.3.)
Identification (2.1.)
Input Scaling (2.6.5.)
Label (2.6.4.)
Language (7.)
LCD Contrast (4.10.)
LCD Fast Mode (4.9.)
Level Offset (2.3.7.6.)
Level Unit (2.3.2.)
Limit Hysteresis (2.6.7.5.)
Linearization (2.4.)
Loader Revision (2.2.3.)
Local Access (6.2.)
Parameter reference
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 169
Local Operation (6.2.2.)
LOE Timer (2.3.6.)
Low Calibration Pt. (2.3.7.1.)
Lower Limit Warning (2.6.7.3.)
Lower Limit Alarm (2.6.7.4.)
Low Level Point (2.3.7.4.)
Main Output (PV– Primary Value) (2.8.1.)
Material (2.3.5.)
Master Reset (4.1.)
Max. Measured Value (3.6.2.)
Maximum Output Value - AIFB1 (3.6.4.)
Maximum Output Value - AIFB2 (3.6.6.)
Maximum Sensor Value (2.5.5.)
Maximum Value (3.3.2.)
Maximum Volume (2.4.1.2.)
Measured Values (2.8.)
Message (2.1.3.)
Min. Measured Value (3.6.1.)
Minimum Output Value - AIFB1 (3.6.3.)
Minimum Output Value - AIFB2 (3.6.5.)
Minimum Sensor Value (2.5.4.)
Minimum Value (3.3.1.)
Mode (2.6.9.1.)
Near Range (2.5.1.)
Order Option (2.2.4.)
Output, no level offset (SV2 – Secondary Value 2) (2.8.3.)
Output, no linearization (SV1 – Secondary Value 1) (2.8.2.)
Output Scaling (2.6.6.)
Peak Values (3.6.)
Position Detect (2.5.7.2.)
Powered Hours (4.7.)
Power-on Resets (4.8.)
Parameter reference
SITRANS LR250 (PROFIBUS PA)
170 Operating Instructions, 08/2014, A5E32221386-AC
PROFIBUS Ident Number (5.2.)
Propagation Factor (2.5.3.)
PV Units (volume/level) (2.3.3.)
Quick Start (1.)
Rate (2.3.8.)
Remaining Device Lifetime (4.2.)
Remaining Sensor Lifetime (4.3.)
Remote Access (6.1.)
Remote Lockout (6.1.1.)
Response Rate (2.3.8.1.)
Sampling (2.5.8.)
Sampling down (2.5.8.3.)
Sampling up (2.5.8.2.)
Sensor (2.3.)
Sensor Offset (2.3.7.3.)
Service Schedule (4.4.)
Shaper Mode (2.5.10.4.)
Shots (2.5.6.)
Signal Processing (2.5.)
Static Revision No. (2.6.1.)
Tag (2.1.1.)
Temperature Units (2.3.4.)
TVT setup (2.5.10.)
TVT shaper (2.5.11.)
Upper Limit Warning (2.6.7.2.)
Upper Limit Alarm (2.6.7.1.)
Unit (2.3.1.)
Value (2.6.9.2.)
Vessel Shape (2.4.1.1.)
Volume (2.4.1.)
Write Protection (6.2.1.)
XY index (2.4.1.5.)
X value (2.4.1.6.)
Parameter reference
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC 171
Y value (2.4.1.7.)
Parameter reference
SITRANS LR250 (PROFIBUS PA)
172 Operating Instructions, 08/2014, A5E32221386-AC

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