WC40D
V. 03
–
09/11/2017
4
©Velleman nv
Damage caused by disregard of certain guidelines in this manual
is not covered by the warranty and the dealer will not accept
responsibility for any ensuing defects or problems.
Note that damage caused by user modifications to the device is
not covered by the warranty.
4.
Features
DCF-controlled clock
clearly legible dial
automatically switches between standard (winter) and daylight
saving time (summer time)
5.
Overview
Refer to the illustrations on page 2 of this manual.
1
manual setting
button
4
battery
compartment
2
reset button
5
protection pin
3
forced signal
reception button
6.
Working Principle
The clock contains a receiver which receives a radio-signal from a
radio station located near Frankfurt, Germany. This long-wave radio-
signal (DCF77) is based on atomic clocks and contains time and date
information. The clock automatically synchronizes with this master
clock radio-signal and when necessary adjusts the positions of
second, minute or hour hands of the clock.
Due to its nature, the radio-signal can be received indoors. However,
it should be noted that the signal is weakened by the presence of
concrete and metal. Therefore the clock must not be installed in
concrete basements or inside metal cages. In large concrete office
buildings or apartments, the clock should be located near a window
for better reception.
Also avoid installing the clock near strong magnetic fields or other
devices that generate a lot of electrical noise (e.g. engines).
