WIKA MH-4 Manual De Instrucciones página 10

5. Faults / 6. Maintenance
Faults
Signal span varies/inaccurate
EN
Deviating zero point signal
6. Maintenance
6.1 Maintenance
This pressure sensor is maintenance-free.
Repairs must only be carried out by the manufacturer.
6.2 Cleaning
Only use commercially available and solvent-free cleaning agents.
10
Causes
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
Overload safety exceeded
WIKA operating instructions pressure sensor, model MH-4
Measures
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