Alecto AK-40 Guide De L'utilisateur page 28

INSTALLATION
Batteries:
Open the battery cover by
sliding the cover forward.
RESET
Insert 2 x 1.5V – AA size
batteries (Penlite-LR6).
Preferably, use alkaline
batteries. When inserting
the batteries, please
observe the polarity.
Afterwards, close the battery cover and place the clock onto a
flat surface.
Clock:
After inserting the batteries, the clock starts synchronizing with
the DCF-77 time signal. The DCF-77 reception icon starts
flashing to indicate that the DCF-77 signal is being received.
flashing off
on
busy receiving the DCF-77 signal no DCF-77 signal
DCF-77 signal reception successful received
The clock automatically starts synchronizing with the DCF-77
signal at 2 or 3am.
You may also manually synchronize the clock by pressing and
holding the "-" button for 3 seconds. The reception icon starts
flashing.
The synchronizing process will take several minutes.
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