Medc Ex ResistTel User Manual download pdf (Page 34)

6. The stipulated position of utilisation must be adhered to. The

telephone must be installed on a plane surface only, in vertical

operating position.

7. Magnetic fields with energy technical frequencies can cause a slight

impairment of the listening quality. If this is the case, please ensure

that the telephone is installed at a suitable location.

8. The type of protection of the telephone is:

II 2 G Ex emb [ib] IIC T5 Ex emb [ib] IIC T5

II 2 D Ex tD A21 IP66 T100°C Ex tD A21 IP66 T100°C

-25°C ≤ T

≤ +60°C -25°C ≤ T

≤ +60°C

Ex emb [ib] IIC T6

II 2 G Ex emb [ib] IIC T6 Ex tD A21 IP66 T80°C

II 2 D Ex tD A21 IP66 T80°C -25°C ≤ T

≤ +40°C

-25°C ≤ T

≤ +40°C IECEx BVS 11.0033

9. The telephone must be switched off before opening. Wait at least 2

minutes after switching off power before opening the telephone!

10. In the open state of the telephone no dust may ingress the device.

11. Upon mounting or demounting the device, do not damage the cover

seal, which keeps the cover tight, or the collar on the lower part of

the housing.

12. Upon repairing the apparatus for use in dust, the repaired parts

should once again be subjected to a routine test.

13. The mouthpiece horn of the receiver consists of a non-conductive

plastic material. It may become dangerously charged at high air

speeds. Consequently, cleaning the mouthpiece horn with

pressurized air is prohibited.

14. If there is a high concentration of sulphurous gases in the

environment, the lettering of the keys can fade and a rust film can

arise.

15. Changes to the product which are in the interests of technical

progress are possible even without prior notice.

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Medc Ex ResistTel User Manual Page 34