Maintenance And Cleaning - Wika Tr31-3 Betriebsanleitung

12. Maintenance and cleaning

12. Maintenance and cleaning
12.1 Maintenance
The resistance thermometers described here require absolutely no
EN
maintenance and contain no components which could be repaired or
replaced.
12.2 Cleaning
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CAUTION!
Before cleaning the instrument, disconnect the electrical
■
connections.
Clean the instrument with a moist cloth. This applies in
■
particular to thermometers with a case made of plastic
and cable sensors with plastic-insulated connecting
cable, to ensure that any risk of electrostatic discharge is
avoided.
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.
For information on returning the instrument, see chapter 14.2
"Return".
WIKA operating instructions models TR31-3, TR31-K (Ex i)