OWIM HG04641A Instructions D'utilisation Et Consignes De Sécurité page 19

If the reception of the radio signal continues to be interrupted, you
can turn on / off the automatic radio time receive function manually.
Press and hold down the SET / RESET button
3 seconds. DCF
automatic radio time receive function is turned off. Now you
can set the time and date manually (see "Setting the language /
time zone / time / date manually").
Press and hold down the SET / RESET button
3 seconds again. DCF
time receive function is turned on. The temperature station will
start the reception of the radio time during early morning.
Mounting the temperature station and / or the outdoor
sensor on a wall:
Note: You will require an electric drill and a crosshead screwdriver
for this step.
is shown in the LC display, the
2
disappear, the automatic radio
2
for about
24
for about
24
GB/IE/NI 19