SCFM vs. CFM, also air flow/pressure across a regulator
On Tue, 06 Jan 2004 03:42:57 -0600, Richard J Kinch
wrote:
Ted Edwards writes:
After all, they are concerend with an upper linmit on the
order of 20 or so KW. A few tens or hundreds of watts is a long way
below full scale.
I always thought they could track a night light. They run at incredibly
slow rpms.
We have some HOA customers with a meter pedestal and a meter feeding
a 4-zone irrigation timer - figure a watt or two to run the timer, and
2 or 3 watts when there's a solenoid valve open. 30 years later, and
the watthour meter reads 0000014.
Watt-hour meters can record infintessimally small currents like that
over the long term, but you can't see it to use the information in the
short term. If the disk turns 1 degree...
-- Bruce --
--
Bruce L. Bergman, Woodland Hills (Los Angeles) CA - Desktop
Electrician for Westend Electric - CA726700
5737 Kanan Rd. #359, Agoura CA 91301 (818) 889-9545
Spamtrapped address: Remove the python and the invalid, and use a net.
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