Re: higher current ammeter sources

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "S&JY" <youngsters-at-konnections-dot-net> 

David,

Just make your own from a lower range meter and a home-made shunt.  You can
use a length of copper or iron wire or strap and keep reducing the length of
it, shunted across the meter, until your full scale reading is what you
need.  For example, for a 0 to 100 amp meter, it is best to use a 0 to 1 or
0 to 10 amp meter with a shunt to make reading the actual value from the
meter scale easier (x10 or x100).  You can also buy meter shunts from some
electronic distributors.
--Steve Y.


----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Sunday, May 09, 2004 6:52 PM
Subject: higher current ammeter sources


 > Original poster: DRIEBEN-at-midsouth.rr-dot-com
 >
 > Hi all,
 >
 > I was wondering if there was a source of higher current
 > range AC ammeters (like 50 to 100 amps) that didn't require
 > an external current transformer for metering? About the
 > highest range that I have been able to locate is 50 amps
 > although I do seem to recall seeing a 0-80 amp one somewhere,
 > but I can't seem to locate this one any more.
 > Any directions to a source would be most appreciated ;^))
 >
 > David Rieben
 >
 >
 >