Faults - WIKA MG-1 Mode D'emploi

8. Faults

8. Faults
WARNING!
Open the connections only after the system has been depressurised!
First check whether the system is under pressure and whether the correct power supply and
correct wiring type (2-wire/3-wire) has been selected.
Faults
No output signal
Deviating zero point signal
Deviating zero point signal
Constant output signal upon
change in pressure
Signal span too small
Signal span varies
Signal span varies/inaccurate
Signal span drops/too small
If complaint is unjustified, we will charge you the complaint processing fees
WIKA operating instructions pressure transmitter model MG-1
Causes
Cable break
Overpressure safety exceeded
Operating temperature
too high/low
Mechanical overload caused by
overpressure
Mechanical overload caused by
overpressure
EMC interference sources in
the environment; for example,
frequency converter
Operating temperature
too high/low
Signal span drops/too small
Measures
Check the through drilling
Observe the permissible overpressure
safety (see chapter "3. Specifications")
Observe the permissible temperatures
(see Chapter "3. Specifications")
Replace pressure transmitter; if it fails
repeatedly, contact the manufacturer
Replace pressure transmitter; if it fails
repeatedly, contact the manufacturer
Shield the pressure transmitter;
Cable shielding; remove source of
interference
Observe the permissible temperatures
(see chapter "3. Specifications")
Contact manufacturer and replace pressure
transmitter
GB
17