Maintenance And Cleaning; Faults - WIKA AC-1 Betriebsanleitung

7. Maintenance and cleaning / 8. Faults

7. Maintenance and cleaning

7.1 Maintenance
GB
This pressure transmitter is maintenance-free.
Repairs must only be carried out by the manufacturer.
7.2 Cleaning
CAUTION!
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For information on returning the instrument see chapter 9.2 "Return".

8. Faults

In the event of any faults, first check whether the pressure transmitter is mounted correctly, mechanically
and electrically.
Faults
Constant output signal upon
change in pressure
No/wrong output signal
20
Before cleaning, correctly disconnect the pressure transmitter from the pressure supply,
switch it off and disconnect it from the voltage supply.
Clean the instrument with a moist cloth.
Wash or clean the dismounted instrument before returning it in order to protect person-
nel and the environment from exposure to residual media.
Residual media in dismounted instruments can result in a risk to persons, the
environment and equipment. Take sufficient precautionary measures.
Causes
Mechanical overload caused by
overpressure
Wrong power supply
Wiring error
WIKA operating instructions pressure transmitter model AC-1
Measures
Replace instrument; if it fails repeatedly,
contact the manufacturer
Observe the pin assignment