Daily auto-resetting but manual countdown timer...

Hi,

I need a timer for switching mains on and off. There should be On and Off buttons to manually control the mains connection and battery backup for the time-of-day clock.

The timer should have a programmable 'allowed to connect' timeframe, say from 9am to 12am and within that timeframe a programmable daily 'accumulated 'on time' of say 2 hours. Users may switch the timer's on and off buttons multiple times, but the total connected time should never exceed the max accumulated daily 'on' time.

The 'On' button should not work if pressed outside the allowed timeframe and the timer should switch mains off when being connected for an accumulated total of say 2 hours or when the allowed timeframe ends, whichever occurs first.

Has anyone here seen a programmable timer capable of such tasks...?

Thanks for any tips and comments

regards

Geir

Reply to
Geir Holmavatn
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Use this timer for the event scheduling.

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Look there to start with...

Then you need a count down timer that gets enabled from both the schedule timer and the Control circuit when activated. The count down timer hits the preset. It'll simply not provide the voltage for the push button control circuit and thus kill the circuit..

Reply to
Jamie

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