Hi IRQ57,
Thank you for your reply,
i wasn't actually sure that i had understood what you wanted.
I found it amusing that you want the supply to stop once a
specific amount of A.H. has gone through,
because thats exactly what a lot of household electricity
meters were designed to do.
They used to do it based on how much money went into the slot,
but these days they do it based on a 'key' that the house-
holder pays to have 'topped up'.
Such meters are quite common, and work well even at very low
current loads. They have to i suppose, people get quite picky
about money. However, i feel that such a meter could easily
be made to respond to your needs.
I assume you had tried the type that don't cut the supply ...?
And i'm not sure that they work on DC anyway ....
It looks like you are now involved in making an electronic
solution to this, and of course i wish you well with it,
and i hope you get it to work how you want it to work.
Could you please give some info about the currents involved,
i may have missed it but all i found was that the system
starts at 15 Amperes, and can be reduced by the temperature
monitoring, to as low as 1 Ampere.
What A.H. are you aiming at, or is this a system variable,
for different units ... what is it usually ?
And i don't quite know what you mean by the meter that doesn't
work properly at one ampere ?
Regards, John