WIKA D-11-7 - Manual (Page 27)

27 WIKA operating instructions pressure transmitter model D-1x-7
2478159.05 12/2011 GB/D/F/E
GB
8. Faults
8. Faults
In the event of any faults, first check whether the pressure transmitter is mounted correctly, mechanically
and electrically.
Faults Causes Measures
No output signal Cable break Check the continuity
Deviating zero point signal Overpressure safety exceeded Observe the permissible overload limit
Deviating zero point signal Too high/low working temperature Observe the permissible temperatures
Constant output signal upon
change in pressure
Mechanical overload caused by
overpressure
Replace instrument; if it fails repeat-
edly, contact the manufacturer
Signal span too small Mechanical overload caused by
overpressure
Replace instrument; if it fails repeat-
edly, contact the manufacturer
Signal span varies EMC interference sources in the
environment; for example, frequency
converter
Shield instrument; cable shield;
remove source of interference
Signal span varies/inaccurate Too high/low working temperature Observe the permissible temperatures
Signal span drops / too small Signal span drops / too small Contact manufacturer and replace
instrument
If complaint is unjustified, we will charge you the complaint processing fees.
CAUTION!
If deficiencies cannot be eliminated by means of the measures listed above, shut down the
instrument immediately, and ensure that pressure and/or signal are 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".