Wika TR10-C Manuel d'utilisateur télécharger pdf (Page 26)

14106886.01 06/2014 GB/D

WIKA operating instructions resistance thermometers and thermocouples, Ex n

8. Electrical connection values

8.1 Electrical data without built-in transmitter or digital display

Power and signal circuit

max

= 30 V

max

= 9 mA

max

= 15 mW

Marking

II 3G Ex nA IIC T1…T6 Gc X

II 3D Ex tc IIIC T440°C …T80°C Dc X

8.2 Electrical data for built-in transmitters or digital displays

Power and signal circuit

max

= 40 V

The transmitter used must be certied

and conrmed to EN 60079-15.

max

= 150 mA

max

= 1,000 mW

Sensor current loop

max

= 9 mA

max

= 15 mW

Marking

II 3G Ex nA IIC T1…T6 Gc X

II 3D Ex tc IIIC T440°C …T80°C Dc X

The transmitters and digital displays used must have their own certication in accordance

with EN/IEC. The installation conditions and electrical connection values can be seen from the

relevant approvals and must be observed.

9. Maintenance and cleaning

9.1 Maintenance

This thermometer is maintenance-free.

Repairs must only be carried out by the manufacturer.

9.2 Cleaning

CAUTION!

■

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

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 sucient precautionary measures.

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

8. Electrical connection values / 9. Maintenance and cleaning

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Wika TR10-C Manuel d'utilisateur Page 26

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