Instructions d'utilisation - Fritz Kübler GmbH Zähl- und Sensortechnik
Instructions d'utilisation - Fritz Kübler GmbH Zähl- und Sensortechnik
Instructions d'utilisation - Fritz Kübler GmbH Zähl- und Sensortechnik
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7.Dust protection classifications<br />
II 2 D Ex tD A21 IP6XT85 °C<br />
max.<br />
surface temperature<br />
IP protection<br />
by housing<br />
Version A, for use in zone 21<br />
Protection by housing<br />
Hazardous area explosion<br />
protected product<br />
For use in areas with an<br />
eplosive dust atmosphere<br />
Category 2<br />
Explosion group II<br />
Inspection and servicing<br />
1. The dust explosion protection strongly depends on the local conditions; therefore, the equipment<br />
used in areas potentially subject to dust explosion must be inspected and serviced regularly.<br />
Due to their thermal insulation, thick dust layers lead to a temperature increase on the surface of<br />
the device. Therefore, dust deposits on the encoder should be avoided as much as possible<br />
through a suitable installation and ongoing maintenance.<br />
2. As a general rule, a device that needs to be opened for servicing may only be opened by trained<br />
personnel of the manufacturer. When dismounting, care must be taken not to damage the parts<br />
necessary for the tightness of the housing.<br />
3. If damages appear on the device, in particular on seals, the device must be replaced immediately.<br />
Repair work at the device itself may only be performed by the manufacturer of the device.<br />
Qualification of the personnel<br />
1. The inspection, maintenance and repair of electrical equipment in areas potentially subject to dust<br />
explosion may only be performed by specialized personnel, having knowledge about the concept<br />
of ignition protection category.<br />
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