Wika TC10-L Manual do Utilizador descarregar pdf (Página 19)

WIKA operating instructions models TR10-L, TC10-L (Ex d)

3370964.05 04/2014 GB/D/F/E

The permissible ambient temperatures for third-party products can be seen from the relevant

approvals and/or data sheets. However, an impermissible heat reux from the process which

can exceed the operating temperature of the housing or the temperature class, must be

prevented through suitable heat insulation or a suitably long neck tube.

9. Maintenance and cleaning

9.1 Maintenance

The thermometers described here are maintenance-free.

Repairs must only be carried out by the manufacturer.

9.2 Cleaning

CAUTION!

■

Prior to cleaning the electrical connections, disconnect them properly.

■

Clean the instrument with a moist cloth.

■

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 the dismounted instrument can result in a risk to persons,

the environment and equipment. Take sucient precautionary measures.

For information on returning the instrument see chapter 11.2 “Return”.

9.3 Calibration, recalibration

It is recommended that the measuring insert is recalibrated at regular intervals (resistance

thermometers: approx. 24 months, thermocouples: approx. 12 months). This period can

reduce, depending on the particular application. The calibration can be carried out by the

manufacturer, as well as on site by qualied technical sta with calibration instruments.

8. Safety-related instructions / 9. Maintenance and cleaning

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Wika TC10-L Manual do Utilizador Página 19