Maintenance And Cleaning - WIKA PHASE-OUT PSD-4 Operating Instructions Manual

7. Maintenance and cleaning

7. Maintenance and cleaning
7.1 Maintenance
EN
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
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off and disconnect it from the voltage supply.
Clean the instrument with a moist cloth.
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Electrical connections must not come into contact with moisture.
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Wash or clean the dismounted instrument before returning it in order to protect personnel
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and the environment from exposure to residual media.
Residual media in dismounted instruments can result in a risk to persons, the
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environment and equipment.
Take sufficient precautionary measures.
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Do not use any pointed or hard objects for cleaning, as they may damage the diaphragm
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of the process connection.
Only ever remove deposits from the diaphragm with a soft brush and suitable solvent.
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Do not use any cleaner that scours the material.
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For information on returning the instrument see chapter 9.2 "Return".
28 WIKA operating instructions pressure switch model PSA-31 for sanitary applications