Re: Wattmeter

• To: tesla-at-pupman-dot-com
• Subject: Re: Wattmeter
• From: will Herzog <herzog-at-frontiernet-dot-net> (by way of Terry Fritz <twf-at-verinet-dot-com>)
• Date: Wed, 27 Jan 1999 20:57:53 -0700
• Approved: twf-at-verinet-dot-com

Tesla List wrote:

> >> In any case, it is easy to use. What you do need to do though, is to put
> a
> >> known load on it and time how long it takes for the disc to turn. It
> takes a
> >> long time to measure power if you actually use the dial, since it has 1
> kWh
> >> resolution (that means running that 1 kW coil for an hour straight....)
> >But there is a Kh factor or some such on most labels, which is related
> >to one turn of the disk is one kwh or one turn of the least significant
> >digit.  I never remember, and have to keep testing with lightbulb, and
> >count turns; to calilbrate mine.
> 
> True.. it is in something like turns of the disk to 1 kWh and then, there is
> some other multiplier as well... (mine says 12 2/3 , however, it is NOT 12
> 2/3 turns kWh, more like 12 2/3 turns/ Wh or maybe 12 2/3 turns kWmin or
> something)  As I said, easier to hook up a known load and use a stop watch.

My electric company had a phamphlet that explained the Kh factors etc.
but I don't recall it.  Just call and ask your company.  They know, and
it's not secret, etc.

-- 
Will; Amateur Radio call K 2 L B ; Rochester, New York, USA
  e-mail <herzog-at-frontiernet-dot-net>

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