Wika 73 Manuale Utente Scaricare il pdf (Pagina 13)

12099431.05 10/2010 GB/D/F/E

WIKA operating instructions models 73, 74, 75 13

7. Maintenance and cleaning

7.1 Maintenance

These gas actuated 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 disconnected 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 personnel, the environment and equipment.

Take sucient precautionary measures.

For information on returning the instrument see chapter

"8.2 Returns".

7. Maintenance and cleaning

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Wika 73 Manuale Utente Pagina 13