7. Maintenance and cleaning
7. Maintenance and cleaning
7.1 Maintenance
GB
These bimetal thermometers are maintenance-free!
The indicator should be checked once or twice every year. To do this
the instrument must be disconnected from the process and checked
using a temperature calibrator.
Repairs must only be carried out by the manufacturer.
7.2 Cleaning
12
CAUTION!
Clean the thermometer with a moist cloth.
■
Wash or clean the thermometer 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.
For information on returning the instrument see chapter
8.2 "Returns".
WIKA operating instructions models 53, 54, 55