User's Manual

7ML19985KB01 SITRANS LR560 (mA/HART) – INSTRUCTION MANUAL Page 119
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B: Troubleshooting
Operation Troubleshooting
Operating symptoms, probable causes, and resolutions.
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 mate-
rial buildup, foaming/other adverse process
conditions, invalid calibration range.
For 3):
• Correct configuration; ensure installation
is correct;
• no antenna buildup;
• adjust process conditions to minimize
adverse conditions;
• correct calibration range.
If fault persists, or for 1) and 2), contact
your local Siemens representative.
S: 54
*
Fault occurs when the PV exceeds the user
configured min./max. range for mA output.
Adjust process to fall within limits of min./
max. mA values or adjust limits of mA if
possible.
S:66 to
S:83
Device error.
NOTE: Fault text and icons appear only on
LCD.
Repair required. Contact your local
Siemens representative.
S:94 to
S:97
Device error.
NOTE: Fault text and icons appear only on
LCD.
Repair required. Contact your local
Siemens representative.
S:98 to
S:108
Device error.
NOTE: Fault text and icons appear only on
LCD.
Repair required. Contact your local
Siemens representative.
Operation Troubleshooting
Symptom Cause Action
Display shows
S: 0 LOE
level or target is out of range
• check specifications
•check Low Calibration Pt. (2.3.1.)
•increase Confidence (2.7.6.1.)
Display shows
S: 0 LOE
material build-up on antenna
• Use the air purge feature to clean the
antenna.
• re-locate SITRANS LR560
General Fault Codes (Continued)
Code /
Icon
Meaning Corrective Action