Operation Troubleshooting - Siemens SITRANS LR260 Operating Instructions Manual

Code/ Meaning
Icon
S: 45 * No valid boot program detected: firmware cor‐
rupt
S: 48 * User configuration is invalid. One or more of pa‐
rameters: Low Calibration Point, High Calibra‐
tion Point, Volume breakpoints, and/or Auto
False-Echo Suppression, are set to invalid val‐
ues.
S: 49 * EEPROM corrupt.
S: 50 * EEPROM corrupt.
S: 51 * EEPROM corrupt.
S: 52 Fail-safe is activated. Possible causes:
1. hardware failure
2. memory failure
3. Fail-safe LOE timer expired– possible
causes: faulty installation, antenna material
buildup, foaming/other adverse process
conditions, invalid calibration range.
S: 53 * Configuration lost: one or more parameter set‐
tings have been lost. This may occur after a
firmware upgrade causes user parameters to be
reset.
10.4

Operation troubleshooting

Operating symptoms, probable causes, and resolutions.
Symptom
Display shows
Display shows
SITRANS LR260 with mA/HART
Operating Instructions, 11/2019, A5E32337683-AD
Cause
level or target is out of range
material build-up on antenna
Corrective Action
Repair required: contact your local Siemens representative.
● Reconfigure the unit.
● Ensure the difference between High Calibration Point
and Low Calibration Point is not less than or equal to
zero; do a Master Reset.
Repair required: contact your local Siemens representative.
Repair required: contact your local Siemens representative.
Repair required: contact your local Siemens representative.
For 3:
● Correct configuration; ensure installation is correct;
● no antenna buildup;
● adjust process conditions to minimize foaming/other
adverse conditions;
● correct calibration range.
If fault persists, or for 1 and 2, contact your local Siemens
representative.
Restore user parameters using SIMATIC PDM.
Action
● check specifications
● check Echo Confidence Pt. (2.2.1.6.) (Page 80)
● increase Echo Confidence (2.2.4.5.1.) (Page 86)
● clean the antenna
● re-locate SITRANS LR260
Diagnosing and troubleshooting
10.4 Operation troubleshooting
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