User's Manual
Table Of Contents
- Table of Contents
- SITRANS LR260 Overview
- Specifications
- Installation
- Wiring
- Quick Start via local operation
- Operating via SIMATIC PDM
- Parameter Reference
- Pull-down menus via SIMATIC PDM
- Quick Start Wizard
- 1. Quick Start
- 2. Setup
- 3. Diagnostics
- 3.1. Echo Profile
- 3.14. Measured Values (MEAS. VALUES)
- 3.15. Remaining Device Lifetime (REMAIN. DEV. LIFE.)
- 3.15.2. Remaining Device Lifetime (REMAIN. LIFETIME)
- 3.15.3. Maintenance Required Limit (MAINT. REQ. LIMIT)
- 3.15.4. Maintenance Demanded Limit (MAINT. DEM. LIMIT)
- 3.15.5. Maintenance Alert Activation (ALERT ACTIVATION)
- 3.15.6. Total Expected Device Life (TOTAL EXP. LIFE)
- 3.15.7. Maintenance Status (MAINT. STAT.)
- 3.15.8. Acknowledge Status (ACK STATUS)
- 3.15.9. Acknowledge (ACK)
- 3.16. Remaining Sensor Lifetime (REMAIN SENS. LIFE.)
- 3.16.2. Remaining Sensor Lifetime (REMAIN. LIFETIME)
- 3.16.3. Maintenance Required Limit (MAINT. REQ. LIMIT)
- 3.16.4. Maintenance Demanded Limit (MAINT. DEM. LIMIT)
- 3.16.5. Maintenance Alert Activation (ALERT ACTIVATION)
- 3.16.6. Total Expected Sensor Life (TOTAL. EXP. LIFE)
- 3.16.7. Maintenance Status (MAINT. STATUS)
- 3.16.8. Acknowledge Status (ACK. STATUS)
- 3.16.9. Acknowledge (ACK.)
- 4. Service
- 4.1. Device Reset
- 4.2. Manufacture Date (MANUF. DATE)
- 4.3. LCD Fast Mode
- 4.4. LCD Contrast
- 4.11. Memory Test (MEM. TEST)
- 4.16.1. Time Last Serviced (TIME LAST SERV.)
- 4.16.2. Remaining Lifetime (REMAIN LIFETIME)
- 4.16.3. Maintenance Required Limit (MAINT. REQ. LIMIT)
- 4.16.4. Maintenance Demanded Limit
- 4.16.5. Maintenance Alert Activation
- 4.16.6. Total Service Interval
- 4.16.7. Maintenance Status (MAINT. STAT)
- 4.16.8. Acknowledge Status (ACK. STATUS)
- 4.16.9. Acknowledge (ACK.)
- 4.17. Calibration Interval (CALIB. INTERVAL)
- 4.17.1. Time Last Calibrated (TIME LAST CAL.)
- 4.17.2. Remaining Lifetime (REMAIN LIFETIME)
- 4.17.3. Maintenance Required Limit (MAINT. REQ. LIMIT)
- 4.17.4. Maintenance Demanded Limit (MAINT. DEM. LIMIT)
- 4.17.5. Maintenance Alert Activation
- 4.17.6. Total Calibration Interval (TOTAL CALIB. INTRV.)
- 4.17.7. Maintenance Status (MAINT. STAT.)
- 4.17.8. Acknowledge Status (ACK. STATUS)
- 4.17.9. Acknowledge (ACK.)
- 5. Communication
- 6. Security
- 7. Language
- Appendix A: Alphabetical Parameter List
- Appendix B: Troubleshooting
- Appendix C: Maintenance
- Appendix D: Technical Reference
- Appendix E: Application Example
- Appendix F: HART Communications
- Appendix G: Firmware Revision History
- Glossary
- Index
- LCD menu structure
A5E32337683 SITRANS LR260 (HART) – OPERATING INSTRUCTIONS Page 101
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D: Technical Reference
Fail-safe Timer
Fail-safe Timer determines the time to elapse after the last valid reading before a Fail-
safe state is activated. Fail-safe Material Level determines the level to be reported when
the Fail-safe timer expires. Upon receiving a reliable echo, the loss of echo condition is
aborted, the Service Required icon and error message are cleared, and the reading and
mA output return to the current level.
Fail-safe Material Level
When the
2.4.1. Fail-safe Timer
expires, the material level to be reported is determined by
2.4.2. Fail-safe Material Level (FAILSAFE MAT. LE)
.
Fail-safe Level
When Fail-safe Material level is set to Value, the Fail-safe Level defines a user-defined
level to report when the Fail-safe timer expires..
Fail-safe Material Level
HI Use Maximum mA Limit as material level
LO Use Minimum mA Limit as material level
HOLD Level remains at last reading
VALUE User-selected value as defined in Fail-safe Level
Fail-safe Level
Values 3.6 to 22.6 mA