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WIKA operating instructions, model MG-1
11609681.03 08/2019 EN/DE/FR/ES
EN
7. Maintenance and cleaning / 8. Faults
7. Maintenance and cleaning
7.1 Maintenance
This pressure sensor is maintenance-free.
Repairs must only be carried out by the manufacturer.
When performing maintenance work, the purity requirements of the applicable standards must be observed.
7.2 Cleaning
CAUTION!
■
Before cleaning, correctly disconnect the pressure sensor from the pressure supply, switch it off
and disconnect it from the mains.
■
Clean the pressure sensor with a moist cloth.
■
Wash or clean the dismounted pressure sensor before returning it in order to protect personnel
and the environment from exposure to residual media.
■
Residual media in dismounted pressure sensors can result in a risk to persons, the environment
and equipment. Take sufficient precautionary measures.
■
Do not use any pointed or hard objects for cleaning, as they may damage the membrane of the
process connection.
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
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")