6. Maintenance and servicing
n
Please observe the manufacturer’s documentation.
n
Read all product-specific safety and application notes in this user’s manual.
n
Before taking the digital clock housing out, one must turn the supply off.
n
The removal of the digital clock housing during the warranty contract period may cause its
cancellation.
4. DESIGN AND INSTALLATION
The clock housing is made of steel sheet with the possibility to fix it on a wall or suspend the digital
clock.
The protection degree is IP54.
Housing dimensions:
DZ2: 1510
´
284
´
77 mm
DZ3: 2020
´
360
´
77 mm
The DCF receiver is fixed separately and should be distant from electromagnetic field sources, current-
carrying wires, big metallic objects, and electronic devices.
If it is possible, the receiver should be situated outside the building. The DCF signal is broadcasted
from Germany in the shape of 0.1 sec. and 0.2 sec. pulses, in one second’ intervals. If the DCF receiver
is properly situated, the receiver diode lights during 0.1 or 0.2 sec and goes out within 0.9 or 0.8 sec.
Fig. . Fixing way of the DCF receiver
A complete DCF signal lasts 1 minute, the first synchronization follows after a full minute since the
moment of the place retrieval of the proper signal.
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