Maintenance and cleaning – WIKA PSA-31 User Manual
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WIKA operating instructions pressure switch model PSA-31
GB
14018458.01 11/2011 GB/D/F/E
7. Maintenance and cleaning
7. Maintenance and cleaning
7.1 Maintenance
This instrument is maintenance-free.
Repairs must only be carried out by the manufacturer.
7.2 Cleaning
CAUTION!
■
Before cleaning, correctly disconnect the instrument from the pressure supply, switch it
off and disconnect it from the voltage supply.
■
Clean the instrument with a moist cloth.
■
Electrical connections must not come into contact with moisture.
■
Wash or clean the dismounted instrument before returning it in order to protect personnel
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.
■
Do not use any pointed or hard objects for cleaning, as they may damage the diaphragm
of the process connection.
■
Only ever remove deposits from the diaphragm with a soft brush and suitable solvent.
■
Do not use any cleaner that scours the material.
For information on returning the instrument see chapter 9.2 "Return".