FHF ExResistTel IP2/IP154, Руководство по эксплуатации

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Manual ResistTel IP2 / IP152 Page 35
ExResistTel IP2 / IP154
2.3.2.3.10 Voltaic Isolation of the Relay Contacts
The two potential free relay contacts are safety voltaic separated against each other
up to a voltage of 440 V
eff
.
2.3.2.4 Warning and Safety Instructions
This telephone is an explosion proof and weatherproof telephone especially for use in
a harsh industrial environment.
The following warning and security instructions must be respected:
•
The telephone is build up in protection class I and must be connected and
used with the required voltages only. The connection cable has to be mounted
without risk of stumbling.
•
Is must be paid attention that the telephone, the connection cable, etc. must
not be damaged. In a damaged state the use of the telephone is not allowed.
•
For using the telephone the laws and the industrial regulations, the accident
prevention, respectively the electrical regulations must be respected.
•
For repairing only original exchange parts are allowed, which have to be
changed professional. Other exchange parts may cause damages and the
warranty will be lost.
•
The required general purpose has to be respected. The telephone must be
mounted on a closed rear panel in vertical mode.
•
A magnetic field with disturbing frequencies can adjust a disturbance of the
acoustic quality. Pay attention to an acceptable installing place.
•
For opening the telephone must be free of power.
•
In opened state of the telephone dust must not attain into the telephone.
•
For the impermeability of the housing necessary gasket respectively the
protective cover at the upper part must not be damaged during mounting or
dismounting.
•
After repairing of the telephone for use in dust environment, the repaired
parts have to be tested again.