WIKA 55 - Manual (Page 12)

GB
12968065.04 10/2013 GB/D/F/E
12 WIKA operating instructions models 53, 54, 55
7. Maintenance and cleaning
7.1 Maintenance
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
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”.
7. Maintenance and cleaning