76 User Guide
Event codes and recommendations
Below is a list of the event codes that your LWT instrument might display should a problem arise, and
recommended action for each event. The first letter of the code refers to NAMUR codes:
• F: Failures
• S: Function check
• C: Out of specifications
• M: Maintenance request
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Table 4 Event codes and recommended action
No. Event message Recommended action
S080.000 Maximum level rate exceeded Make sure max level rate matches the process
S081.001 GPC alarm, last valid gpc used Check installation, GPC marker, process cond.
F203.002 Sensor has lost surface echo Check installation and parameter adjustments.
S088.003 For information purposes only
S085.004 Emulsion has been detected For information purposes only
F234.005 Electronic failure or harsh env Check installation for vibrations or EMC interference
S060.010 PV value out of range Check process conditions and device config.
C153.011 GPC currently in calibration Wait for calibration to finish.
S083.012 Too many echos detected Check installation or device parameters.
F233.013 Reference echo not detected Check installation and coupler connection.
F210.016 Invalid device parameters Enter valid parameters
F236.017 The sensor should be replaced ASAP
S110.018 Successful sensor reboot Successful sensor reboot
S062.019 Surface inside blocking distance Check process conditions and device config.
F237.020 Sensor Board communication error. Restart sensor. If condition persists, call ABB
F233.023 The electronics must be replaced; call ABB.
S082.024 Weak echo amplitude Check installation and process conditions.
F232.025 Unconnected coupler or probe Check connection of head, coupler and probe
S061.026 Surface inside safety distance Check process conditions and/or device config.
M30.031 Maintenance required Verify sensor functionality, clear diagn. Mess.
M011.033 Temperature out of range Check ambient temperature. Use remote option
F230.034 First coupler seal leak Check coupler.
F235.035 Load sensor configuration failure Restart sensor. If condition persists, call ABB
C151.036 Data Simulation warning The Output value is derived from simulated value
C150.037 Alarm Simulation warning Alarm condition is being simulated by the device
M012.042 Restart sensor. If condition persists, call ABB
M035.045 HMI validation test failure Replace the HMI; call ABB.
F231.046 Broken probe or wrong length Replace probe or adjust probe length.
M026.047 Build-up on probe Clean probe.
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