Poul-Henning Kamp wrote: > In message <[EMAIL PROTECTED]>, Jim Lux writ > es: > >>> As long as I'm dreaming... Suppose I wanted to measure the power my whole >>> house is drawing. What's available along the lines of a current transformer >>> on the main lines? My first thought is that nobody does that (for homes) so >>> it's probably horribly expensive. On the other hand there is a lot of >>> interest in energy conservation these days so it might only be somewhat >>> expensive. >> Lots of these available, in the few hundred dollar range.. > > The best and likely cheapest solution is to get the data from your > utility meter. Most meters have a "S0" output which sends a pulse > evern X Wh. > > If you can't find it, ask your power-company for access. Tell them > you want to monitor your energy conservation effort and they'll likely > not charge you for it. > > If that fails, search google for "gasdims" :-) >
I like this thing http://www.digital-loggers.com/epcr2.html It has two busses, one can be powered by a UPS and the other directly off the mains. You can measure power and voltage on both busses, it has a reasonable web interface, you can turn the outlets on/off from the network. I think it's a deal for $295, but they also have a cheaper model. jeff _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
