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: Communications via Foundation Fieldbus
- C Appendix C: Certificates and support
- 13 List of abbreviations
- 14 LCD menu structure
- Glossary
- Index
Parameter reference
SITRANS LR250 (FOUNDATION FIELDBUS)
Operating Instructions, 01/2014, A5E32221411-AB
163
Remaining Device Lifetime (4.2.)
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 Sensor Lifetime (4.3.)
,
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 Device Lifetime parameters in hours
(via AMS Device Manager only) see
Remaining Device Lifetime
under Maintenance &
Diagnostics (RESOURCE) (Page 102
)
.
The device tracks itself based on operating hours and monitors its predicted lifetime. You can
modify the expected device lifetime, set up schedules for maintenance alerts, and acknowledge
them.
The maintenance warnings and alarms are communicated to the end user through status
information. This information can be integrated into any Asset Management system.
To access these parameters via AMS Device Manager see
Remaining Device Lifetime
under
Maintenance & Diagnostics (RESOURCE) (Page 102).
Time in operation (4.2.2.)
Read only. The amount of time the device has been operating.
Remaining lifetime (4.2.3.)
Read only.
LIfetime (Expected) (4.2.1.)
less
Time in Operation (4.2.2.).