-=> August Abolins said to All
 -=> about "WATTS UP? KILOWATT-HOUR M" on 08-07-03  20:41.....

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

There's nothing like that available here, at that kind of price.

 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.

If you can buy a secondhand household power meter from a junk
shop, that would show the cost of running the pump. Often these
are available for as little as $5.

A simple way of showing the percentage of time it's running would
be to connect a mains driven electric clock across the pump
motor. The clock would run only when the pump was running.
Checking the time shown on the clock every 24 hours would let you
calculate the % of time the pump was on.

Nowadays, mains driven clocks are rare, but you can use a relay
across the motor to switch a battery clock on/off.

From Greg Mayman, in beautiful Adelaide, South Australia
   "Queen City of The South"    34:55 S  138:36 E

... We only think when we are confronted with a problem. - John Dewey
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