Alternative Power sources - Kill-A-Watt question

Author

Kill-A-Watt question

Neon John

2007-08-23, 3:25 am

I've been reverse-engineering a KAW in preparation for my article on adding memory
battery backup. I've noticed something interesting. On the "power board" there is
space for a relay that breaks the hot leg and the supporting electronics. None of
the spots are populated and there is a heavy jumper across where the relay would have
gone.

I'm curious as to what this relay was for. Has anyone ever seen a variant of the KAW
that included some sort of switching? Perhaps a built-in timer?

John
--
John De Armond
See my website for my current email address
http://www.neon-john.com
http://www.johndearmond.com <-- best little blog on the net!
Tellico Plains, Occupied TN
Alcohol, Tobacco & Firearms should be a convenience store, not a government agency.

Pete C.

2007-08-23, 1:25 pm

Neon John wrote:
>
> I've been reverse-engineering a KAW in preparation for my article on adding memory
> battery backup. I've noticed something interesting. On the "power board" there is
> space for a relay that breaks the hot leg and the supporting electronics. None of
> the spots are populated and there is a heavy jumper across where the relay would have
> gone.
>
> I'm curious as to what this relay was for. Has anyone ever seen a variant of the KAW
> that included some sort of switching? Perhaps a built-in timer?
>

Perhaps they use the same basic guts with different software for a power
metering application? I've seen some interesting power meters with
controllers that are used in very remote locations where you buy blocks
of power online say 1,000 kw/h and print out a long code that you then
enter into the controller attached to the meter and it enables power
until the credit is used up.

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