User's Manual

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Table Of Contents

SITRANS LR250 (PROFIBUS PA)
Legal information
Table of contents
1 Introduction
- 1.1 The manual
- 1.2 Firmware revision history
2 Safety notes
- 2.1 Safety marking symbols
- 2.2 FCC Conformity
- 2.3 CE Electromagnetic Compatibility (EMC) Conformity
3 Description
- 3.1 SITRANS LR250 overview
- 3.2 Programming
- 3.3 Applications
- 3.4 Approvals and certificates
4 Installing/mounting
- 4.1 Pressure applications
  - 4.1.1 Pressure Equipment Directive, PED, 97/23/EC
- 4.2 Mounting location
- 4.3 Installation instructions
- 4.4 Flange bolting, Flanged encapsulated antenna only
5 Connecting
- 5.1 Power
- 5.2 Connecting SITRANS LR250
  - 5.2.1 Basic PLC configuration with PROFIBUS PA
- 5.3 Wiring setups for hazardous area installations
- 5.4 Instructions specific to hazardous area installations
6 Commissioning
- 6.1 Operating via the handheld programmer
- 6.2 Application examples
7 Remote operation
- 7.1 Operating via SIMATIC PDM
- 7.2 Operating via FDT
8 Parameter reference
- 8.1 Alphabetical parameter list
9 Service and maintenance
- 9.1 Maintenance
- 9.2 Unit repair and excluded liability
- 9.3 Part replacement
10 Diagnosing and troubleshooting
- 10.1 Device status icons
- 10.2 General fault codes
- 10.3 Operation troubleshooting
11 Technical data
- 11.1 Power
- 11.2 Performance
- 11.3 Interface
- 11.4 Mechanical
- 11.5 Environmental
- 11.6 Process
- 11.7 Approvals
- 11.8 Programmer (infrared keypad)
12 Dimension drawings
- 12.1 Threaded horn antenna
- 12.2 Threaded horn antenna with extension
- 12.3 Flanged horn antenna
- 12.4 Flanged horn antenna with extension
- 12.5 Flanged encapsulated antenna (2"/DN50/50A sizes only)
- 12.6 Flanged encapsulated antenna (3"/DN80/80A sizes and larger)
- 12.7 Threaded PVDF antenna
- 12.8 Threaded connection markings
- 12.9 Raised-Face flange per EN 1092-1 for flanged horn antenna
- 12.10 Raised-Face flange per EN 1092-1 for flanged encapsulated antenna
- 12.11 Flat-Face flange
- 12.12 Process connection tag (pressure rated versions)
A Appendix A: Technical reference
- A.1 Principles of operation
- A.2 Echo processing
- A.3 Maximum Process Temperature Chart
- A.4 Process Pressure/Temperature Derating Curves
B Appendix B: PROFIBUS PA profile structure
- B.1 PROFIBUS Level Device Design
- B.2 Block Model
C Appendix C: Communications via PROFIBUS
- C.1 Device configuration
  - C.1.1 SIMATIC PDM
  - C.1.1.1 Electronic Device Description
- C.2 Network configuration
  - C.2.1 The GSD file
- C.3 Bus termination
- C.4 Power demands
- C.5 PROFIBUS address
- C.6 Operating as a profile device
  - C.6.1 Configuring a new device
  - C.6.2 Configuring PROFIBUS PA with an S7-300/ 400 PLC
- C.7 Cyclic versus acyclic data
  - C.7.1 Cyclic data
- C.8 Status byte
- C.9 Condensed status
- C.10 Diagnostics
D Appendix D: Certificates and Support
- D.1 Certificates
- D.2 Technical support
13 List of abbreviations
14 LCD menu structure
Glossary
Index

SITRANS LR250 (PROFIBUS PA)

Operating Instructions, 01/2014, A5E32221386-AB

Description

3.1

SITRANS LR250 overview

WARNING

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 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.