Clock loses time after power cut

[stan.the.man]

Hi, I have a profilux ii ex - if I have a powercut or turn power off, I lose the time on the clock. This has happened a few times now, but I don't remember this happening in the past (maybe it did). Is there an internal battery backup for the clock?

TIA Stan

[Artur]

The ProfiLux saves the time for few weeks. If you turn him off for a longer time it is normal that he loses the time.
If you turn him off for a short time (few minutes) and he loses time, then the device is faulty and you should contact your retailer.