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

Commissioning

6.2 Application examples

SITRANS LR250 (PROFIBUS PA)

Operating Instructions, 01/2014, A5E32221386-AB

6.2.1

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

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.)

meters

Operating mode (1.5.)

LEVEL

Level