TMT162 Trouble-shooting
Endress+Hauser 33
9 Trouble-shooting
9.1 Trouble-shooting instructions
If faults occur after commissioning or during measurement always start any fault-finding sequence
using the following checklists. The user is guided to the possible fault cause and its removal by
question and answer.
9.2 Error messages
Fault code Cause Action/Remedy Mode
1)
0No fault, warning - -
10 Hardware fault (device defective) Replace device F
13 Reference measurement point
defective
Replace device F
15 EEprom defective Replace device F
16 A/D convertor defective Replace device F
17 Ambient temperature limit exceeded Electronics possibly damaged due to
exceeding the ambient temperature range,
return electronics to manufacturer for check
0, F
19 Supply voltage too low Check supply voltage; check connection
wires for corrosion
F
50 Sensor 1 open circuit Monitor sensor 1 *
51 Sensor 1 short circuit Monitor sensor 1 *
52 Sensor 1 corrosion Monitor sensor 1 *
53 Outside sensor range Incorrect sensor type 1 for application *
60 Sensor 2 open circuit Monitor sensor 2 *
61 Sensor 2 short circuit Monitor sensor 2 *
62 Sensor 2 corrosion Monitor sensor 2 *
63 Outside sensor range Incorrect sensor type 2 for application *
70 Drift alarm Drift limit exceeded, check sensor F
81 Alarm: measuring range undershoot Measuring range poss. set too small F
82 Alarm: measuring range overshoot Measuring range poss. set too small F
106 Warning: Up/download active - C
107 Warning:
Output simulation active
Deactivate output simulation C
201 Warning:
Measured value too small
PV change lower range starting point M
202 Warning:
Measured value too high
PV change upper range end point M
203 Warning:
Ambient temperature limit exceeded
Electronics possibly damaged due to
exceeding the ambient temperature range,
return electronics to manufacturer for check
0
204 Drift warning Drift limit exceeded, check sensor M
205 Warning:
Sensor backup activated
Monitor sensor M
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