Wika 55 Bedienungsanleitung PDF herunterladen (Seite 14)

Thermowell

Stem

Required safety

clearance

11583747.03 10/2013 GB/D/F/E

14 WIKA operating instructions models 53, 54, 55 (ATEX)

CAUTION!

When using thermowells, please

ensure that the stem does not

touch the bottom of the thermowell

since, due to the dierent

expansion coecients of the

materials, the stem may become

buckled at the bottom of the

thermowell.

(Formula for the calculation of

the insertion length l

see the

respective thermowell's data sheet)

7. Maintenance and cleaning

7.1 Maintenance

These bimetal thermometers are maintenance-free!

The indicator should be checked once or twice every year. For 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.

6. Commissioning ... / 7. Maintenance and ...

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Wika 55 Bedienungsanleitung Seite 14