Faults - WIKA LH-10 Mode D'emploi

8. Faults

8. Faults
In the event of any faults, first check whether the submersible pressure transmitter is mounted correctly, mechanically
and electrically.
EN
Faults
No output signal
No/wrong output signal
Signal span too small/drops
Signal span varies/inaccurate
Deviating zero point signal
If complaint is unjustified, we will charge you the complaint processing fees.
CAUTION!
If faults cannot be eliminated by means of the measures listed above, shut down the submersible pressure
transmitter immediately, and ensure that pressure is no longer present, and secure the instrument from
being put back into operation inadvertently. In this case, contact the manufacturer. If a return is needed,
please follow the instructions given in chapter 9.2 "Return".
14
Causes
Cable break
No/wrong power supply
Wiring error
Mechanical overload caused by overpres-
sure
Diaphragm damaged, e.g. due to impacts,
abrasive/aggressive medium; corrosion at
diaphragm; transmission medium missing
Operating temperature too high/low
Operating temperature too high/low
Diaphragm damaged, e.g. due to impacts,
abrasive/aggressive medium; corrosion at
diaphragm; transmission medium missing
WIKA operating instructions submersible pressure transmitter, model LH-10
Measures
Check the continuity, and if necessary exchange
the cable
Correct the power supply
Rectify the wiring
Replace instrument; if it fails repeatedly, contact
the manufacturer.
Replace instrument; if it fails repeatedly, contact
the manufacturer.
Operate the instrument in the permissible
temperature range
Operate the instrument in the permissible
temperature range
Replace instrument; if it fails repeatedly, contact
the manufacturer.