WIKA MH-1 Manual De Instrucciones página 13

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6. Faults
Faults
Constant output signal upon
change in pressure
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.
WIKA operating instructions, pressure transmitter, model MH-1
Causes
Mechanical overload caused
by overpressure
Mechanical overload caused
by overpressure
Diaphragm damaged, e.g.
due to impacts, abrasive/
aggressive medium; corrosion
at diaphragm or process
connection; transmission
medium missing
Sealing/sealing face damaged
or soiled, sealing does not
have a tight fit, threads
jammed
EMC interference sources
in the environment; e.g.
frequency converter
Operating temperature too
high/low
Instrument not grounded
Strongly fluctuating pressure
of the process medium
Operating temperature too
high/low
Other mounting position
Overpressure limit exceeded
Measures
Replace instrument; if it
fails repeatedly, contact the
manufacturer.
Replace instrument; if it
fails repeatedly, contact the
manufacturer.
Replace instrument; if it
fails repeatedly, contact the
manufacturer.
Clean the sealing/sealing
face, replace sealing if appli-
cable
Shield instrument; cable
shield; remove source of
interference
Lower/increase the
temperature
Ground the instrument
Damping; consulting by the
manufacturer
Lower/increase the
temperature
Adjust the zero point
Reduce the pressure
EN
13

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