operation manual

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Maintenance and cleaning
8 Maintenance and cleaning
The product does not require any maintenance.
Enlist the help of an expert to carry out any main
-
tenance or repairs.
The mains voltage must be disconnected before
the device is removed (trip the miniature circuit-
breaker). Only qualified electricians (to VDE 0100)
are permitted to carry out work on the 230 V
mains.
Clean the device using a soft, lint-free cloth that is clean
and dry. You may dampen the cloth a little with lukewarm
water in order to remove more stubborn marks. Make
sure that no moisture will ingress into the housing. Do
not use any detergents containing solvents, as they could
corrode the plastic housing and label.
9 General information about radio
operation
Radio transmission is performed on a non-exclusive
transmission path, which means that there is a possibil-
ity of interference occurring. Interference can also be
caused by switching operations, electrical motors or de-
fective electrical devices.