User's Manual
Table Of Contents
- SITRANS LR250 (PROFIBUS PA)
- Legal information
- Table of contents
- 1 Introduction
- 2 Safety notes
- 3 Description
- 4 Installing/mounting
- 5 Connecting
- 6 Commissioning
- 7 Remote operation
- 8 Parameter reference
- 9 Service and maintenance
- 10 Diagnosing and troubleshooting
- 11 Technical data
- 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
- B Appendix B: PROFIBUS PA profile structure
- C Appendix C: Communications via PROFIBUS
- D Appendix D: Certificates and Support
- 13 List of abbreviations
- 14 LCD menu structure
- Glossary
- Index
Commissioning
6.1 Operating via the handheld programmer
SITRANS LR250 (PROFIBUS PA)
46 Operating Instructions, 01/2014, A5E32221386-AB
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 Dimensions
(Page 177).