User's Manual
Table Of Contents
- 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: HART communications
- C Appendix C: Certificates and support
- 13 List of abbreviations
- 14 LCD menu structure
- Glossary
- Index
Parameter reference
SITRANS LR250 (HART)
116 Operating Instructions, 01/2014, A5E32220602-AB
Sensor Mode (2.2.2.)
①
Sensor value
⑤
Sensor reference point [see Dimension
drawings] (Page 191)
②
Space
⑥
Low Calibration Point
③
Distance
⑦
Far range
④
High Calibration Point
⑧
Level
Mode
Description
Reference point
NO SERVICE Measurement and associated loop current are
not updated, and the device defaults to Fail-
safe mode
a)
.
n/a
LEVEL * Distance to material surface Low Calibration Point
(process empty level)
SPACE Distance to material surface High Calibration Point
(process full level)
DISTANCE
Distance to material surface
Sensor reference point
a)
See Material Level (2.5.1.) for more detail.