Posted to rec.crafts.metalworking
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12v inverters - Output voltage too high?
"Tim Wescott" wrote in message
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On Thu, 09 Jul 2015 10:47:53 -0700, Paul Hovnanian P.E. wrote:
Tell us the model number of the meter.
To get a proper (RMS) reading, you will need a 'true RMS' meter.
Otherwise, it reads the peak a nd scales that down by sqrt(2) which
is
only valid for a sine wave. If you don't know what kind you've got,
some
electrical whiz can tell you.
I thought of that, but the most likely cheap-meter equivalent would
be a
square wave, which would read lower.
I suppose that a meter that takes the average of the absolute value
and
then scales _up_ may be off in this manner, however.
--
Tim Wescott
Wescott Design Services
http://www.wescottdesign.com
http://www.escoglobal.com/resources/...rs/True_G2.pdf
-jsw
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