WIKA LH-10 - Manual (Page 14)

14 WIKA operating instructions submersible pressure transmitter, model LH-10
14075011.01 08/2013 GB/D/F/E
GB
Faults Causes Measures
Signal span too small/drops Mechanical overload caused by overpres-
sure
Replace instrument; if it fails repeatedly, contact
the manufacturer.
Diaphragm damaged, e.g. due to impacts,
abrasive/aggressive medium; corrosion at
diaphragm; transmission medium missing
Replace instrument; if it fails repeatedly, contact
the manufacturer.
Signal span varies/inaccurate Operating temperature too high/low Operate the instrument in the permissible
temperature range
Deviating zero point signal Operating temperature too high/low Operate the instrument in the permissible
temperature range
Diaphragm damaged, e.g. due to impacts,
abrasive/aggressive medium; corrosion at
diaphragm; transmission medium missing
Replace instrument; if it fails repeatedly, contact
the manufacturer.
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”.
9. Dismounting, return and disposal
WARNING!
Residual media in the dismounted instrument can result in a risk to persons, the environment and
equipment. Take sufficient precautionary measures.
9.1 Disassembly
WARNING!
Risk of burns!
Let the instrument cool down sufficiently before dismounting it!
During dismounting there is a risk of residual, dangerously hot media.
8. Faults / 9. Dismounting, return and disposal