22
Battery backup
In the event of a power cut, the built-in battery will keep your
time and programme settings for up to 2 days.
After 2 days without mains power the date and time will be
lost.
When mains power is restored, the unit should be RESET, by
pressing the R/S button beneath the ap, using a small non-
metallic object, i.e. matchstick, biro tip (see page 12).
Then reprogramme date and time.
Battery backup