-=> AUGUST ABOLINS wrote to ALL <=-

 AA> Hi All,   Does anyone here know a good supplier for a KWH meter that
 AA> can be used on "per appliance basis"?  The first thing
I've been able
 AA> to dig up in the internet is something supplied at:

 AA> http://www.advancedenergyonline.com/catalog/systemcomponents/meters.htm#
 AA> 227

 AA> Watts Up? Kilowatt-Hour Meter


Two ways to go from my POV.
An Amprobe meter will work and being mobile and unattached
you can move it to various appliances.
You'd still need to measure the duty cycle of the appliance
but that could be handled by a clock modual where the clock ran
elapsed time when the unit was on. You'd have to work out the math
manually for kilowatt/hrs.
For the more adventurous among us, like me in my youth,
you could pass the hot lead through a cheap toroid coil
on each appliance monitors with a secondary tap
converting the power to a signal that could be sent through
X-10 style moduals to your computer.
From there it's a simple matter to plug in the
kilowatt hour rates for your area as well as fixed
fees and tax into your computer to compute each appliances
cost per billing period, duty cycle, log time on, independent
power usage, ect.
An ambitious project but most of the stuff is premanufactured

 AA> The Watts Up kilowatt-hour meter is easy to set-up and use. It gives
 AA> the user power usage information for individual appliances, displaying
 AA> true power consumed, (including power factor information), and keeps
 AA> track of cumulative kilowatt-hours, cumulative time the meter has been
 AA> plugged in, and amount of money the electricity consumed costs. A 15
 AA> amp circuit breaker protects against overloads. UL listed.

 AA> 28-280-025 Watts Up? kWh Meter $95.95

 AA> ...but there is no illustration of the product available, so it's hard
 AA> to shop for this thing.  I'd like to use a KWH meter to monitor the
 AA> usage (# of times on/off, and kwh's) of a water pump.

Take the amprobe reading _once_ perhaps borrowing the instrument from
a friend then just use the above mentioned clock modual as an elapsed
time meter and do the math, it's the cheap way to go.
You could even turn off everything in the house
and yard leaving _only_ the pump on and take before and after readings
for an elapsed time and figure the usage off the power companies meter.
Digikey and JamesCo both carry midular clock moduals suitable
to monitor elapsed on time
 
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