Wika WU-26 Manuel d'utilisateur télécharger pdf (Page 11)

11WIKA Operating instructions/Betriebsanleitung/Mode d'emploi/Instrucciones de servicio, WU-2X

11553678.02 GB/D/F/E 10/2012

7. Starting, operation

Electrical connection

WARNING!

Connect the enclosure to ground through the process connection, against electromagnetic

elds and electrostatic discharge.

WARNING!

Specic conditions for safe use in explosive atmosphere:

■

External earthing connection shall be established by end-user via pressure connection

minimum 4 mm² required. External earthing connection shall be corrosion resist and locked

against rotation.

■

Suitable connector minimum IP 54 shall be provided by end-user (In the end-use application

the degree of protection min IP54 shall be maintained). If applicable the connector shall be in

accordance with EN 60079-0:2006 and EN 60079-15:2005

■

Cable provided by end-user shall be suitable for the ambient temperature.

■

Use only shielded cables. Note that with connectors no connection between cable shield

and housing is possible.

For instruments with cable outputs, the cable is always shielded. Depending upon the design

(ordered version) the screen may or may not be connected with the enclosure. An additional

equipotential bonding maybe required.

■

Ensure that the cable diameter you select ts to the cable gland of the connector Ensure that

the cable gland of the mounted connector is positioned correctly and that the sealings are

available and undamaged. Tighten the threaded connection and check the correct position

of the sealings in order to ensure the ingress protection

■

Cover ying leads with ne wires by an end splice (cable preparation).

■

Please make sure that the ends of cables with ying leads do not allow any ingress of

moisture.

■

The transducer must be connected and operated in accordance with the approriate regula-

tions. Take care to ensure that the electrical connection (e.g. M12 connector) is correctly

made (fully sealed).

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 83 84

Pas de commentaire

Wika WU-26 Manuel d'utilisateur Page 11