Maintenance And Cleaning - WIKA TR21-A Mode D'emploi

9. Maintenance and cleaning

9. Maintenance and cleaning
9.1 Maintenance
The resistance thermometers described here require absolutely no maintenance and
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contain no components which could be repaired or replaced.
In general, thermowells are maintenance-free.
We recommend a visual check of the thermowell for leaks and damages at regular intervals.
Make sure that the seal is in perfect condition!
Repairs should only be carried out by the manufacturer or, following prior consultation, by
correspondingly qualified skilled personnel.
9.2 Cleaning
CAUTION!
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For information on returning the instrument see chapter 11.2 "Return".
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Before cleaning the instrument, disconnect the electrical connections.
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 persons 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.
WIKA operating instructions model TR21