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
Appendix C: Communications via PROFIBUS
C.10 Diagnostics
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 01/2014, A5E32221386-AB
241
Acyclic Extended Diagnostics /General Fault Codes
LCD display
Meaning
Corrective Action
Byte
Bit
S:0
The device was unable to get a
measurement within the Failsafe LOE
Timer period. Possible causes: faulty
installation, antenna material buildup,
foaming/other adverse process
conditions, invalid calibration range.
• Ensure installation details are correct.
• Ensure no antenna material
buildup. Clean if necessary.
• Adjust process conditions to minimize
foam or other adverse conditions.
• Correct range calibration.
• If fault persists, contact your local
Siemens representative.
0
0
S:2
Unable to collect profile because of a
power condition that is outside the
operating range of the device.
Repair required. Contact your local
Siemens representative.
2
S:3
Device is nearing its lifetime limit
according to the value set in
Maintenance Required Limit.
Replacement is recommended. 3
S:4
Device is nearing its lifetime limit
according to the value set in
Maintenance Demanded Limit.
Replacement is recommended. 4
S:6
Sensor is nearing its lifetime limit
according to the value set in
Maintenance Required Limit.
Replacement is recommended. 6
S:7
Sensor is nearing its lifetime limit
according to the value set in
Maintenance Demanded Limit.
Replacement is recommended. 7
S:8
Service interval as defined in
Maintenance Required Limit has expired.
Perform service
0
S:9
Service interval as defined in
Maintenance Demanded Limit
has expired.
Perform service. 1
S:10
Input parameters High Calibration Point
and Low Calibration Point are the same.
• Check calibration settings of device.
• Ensure settings for High Calibration
Point and Low Calibration Point are
different.
3
S:11
Internal temperature sensor failure. Repair required. Contact your local
Siemens representative.
4