2. Operation
Safe operation of these devices presumes that they have been placed in service properly
by qualified personnel in compliance with the warnings in this manual.
In particular the general installation and safety regulations (e.g. DIN/EN and VDE) must be
observed. Non-observance may result in death, serious personal injury or major damage
to equipment.
These devices meet Protection Class I (protective earth connection) according to DIN
EN61010-1. Before powering up, be sure that the mains voltage agrees with the
permissible operating voltage of the device ( 4.1 Technical data TOE 9261 and the
rating plate). Except in areas with special protection measures, the mains plug must only
be inserted in a socket having a PE contact. The protection effect must never be defeated
through use of an extension cable not having a protective earth. The mains plug must be
inserted in the socket before the device is turned on and the measuring and control circuits
connected. Any interruption in the protective earth inside or outside the unit or removal of
the protective earth connection may result in a hazardous condition for the device. No
intentional interruption of the protective earth connection is permitted. Observe local
regulations for earthing.
Ensure that only fuses of the specified type and specified current are used as
replacements ( 4.1 Technical data TOE 9261 and the rating plate). The use of repaired
fuses or short circuiting the fuse holder is not permitted.
If it is apparent that non-hazardous operation is no longer possible, the devices must be
taken out of service and secured against unintended operation.
protection).
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