I suppose that I need to wire the power cable through this device and from
this device connect to A1.
Is there any such device ? Or any other method of doing this ? (the device
A1 is at home).
Thanks.
A basic digital watch , assuming it starts from cold at 00:00 , 01 Jan 1981
or whatever .
And a latch to keep the power to watch going . Another watch and another
latch set by the first latch.
Then subtruct the hours and mins from the reading time
An AC hour meter should work. It would be connected across the
switched AC line where goes to device A1. They cost about $10US on
ebay:
http://cgi.ebay.com/Tech-Hour-Meter-AC-100-250V-Boat-Car-Truck-Tractor-/200587032950?pt=LH_DefaultDomain_0&hash=item2eb3eb3976
This one displays up to 99999.9 hours then cycles back to 0.
John