WIKA MG-1 - Manual (Page 17)

17 WIKA operating instructions pressure transmitter, model MG-1
11609681.02 03/2013 GB/D/F/E
GB
Faults Causes Measures
No output signal Cable break Check the through drilling
Deviating zero point signal Overpressure safety exceeded Observe the permissible overpressure
safety (see chapter "3. Specifications")
Deviating zero point signal Operating temperature too high/
low
Observe the permissible temperatures
(see Chapter "3. Specifications")
Constant output signal upon
change in pressure
Mechanical overload caused by
overpressure
Replace pressure transmitter; if it fails
repeatedly, contact the manufacturer
Signal span too small Mechanical overload caused by
overpressure
Replace pressure transmitter; if it fails
repeatedly, contact the manufacturer
Signal span varies EMC interference sources in
the environment; for example,
frequency converter
Shield the pressure transmitter;
Cable shielding; remove source of interfe-
rence
Signal span varies/inaccurate Operating temperature too high/
low
Observe the permissible temperatures
(see chapter "3. Specifications")
Signal span drops/too small Signal span drops/too small Contact manufacturer and replace pressure
transmitter
If complaint is unjustified, we will charge you the complaint processing fees
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.