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)
144 Operating Instructions, 01/2014, A5E32220602-AB
Service (4.)
Note
Default settings in the parameter tables are indicated with an asterisk (*) unless explicitly
stated.
Master Reset (4.1.)
Note
Following a reset to Factory Defaults
, complete reprogramming is required.
Resets all parameter to factory defaults, with the following exceptions:
●
Device Address (5.1.)
remains unchanged if the reset command is sent remotely (via AMS,
PDM, DTM, FC375) but is reset to 0 if the reset command is sent via LUI.
●
Write Protect (6.2.1.)
and
PIN to Unlock (6.2.2.)
values are not reset.
●
Auto False Echo Suppression (2.8.7.1.)
learned TVT and
Auto False Echo Suppression
Range (2.8.7.2.)
are not lost.
Options
*
Idle or Done (Return to previous menu)
Factory Defaults
To perform a reset to factory defaults via SIMATIC PDM, open the menu
Device – Master Reset
and click on
Factory Defaults.