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: 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
Parameter reference
SITRANS LR250 (PROFIBUS PA)
138 Operating Instructions, 01/2014, A5E32221386-AB
Remaining Sensor Lifetime (4.3.)
Note
•
Default settings in the parameter tables are indicated with an asterisk (*) unless explicitly
stated.
•
Four sets of parameters allow you to monitor the Device/Sensor Lifetimes and set up
Maintenance/Service schedules, based on operating hours instead of a calendar-based
schedule. See also
Remaining Device Lifetime (4.2.), Service Schedule (4.4.)
,
and
Calibration Schedule (4.5.)
.
•
Performing a reset to
Factory Defaults
will reset all the Maintenance Schedule
parameters to their factory defaults.
•
The device operates in years. To view Remaining Sensor Lifetime parameters in hours or
days (via SIMATIC PDM only) see
Lifetime Expected (4.3.1.)
.
The device monitors the predicted lifetime of the sensor (the components exposed to the vessel
environment). You can modify the expected sensor lifetime, set up schedules for maintenance
reminders, and acknowledge them.