Surely, this depends on the meter. It's easy enough to measure and find out.
Most of my "1mA" to "100mA" meters here (Simpsons, Westons) have those shunts
built in.
"1A" and higher meters almost always don't!
WB2WIK/6
-----Original Message-----
From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com]On
Behalf Of Ron Youvan
Sent: Friday, May 29, 2009 10:03 AM
To: amps
Subject: Re: [Amps] Meter shunt
> If the meter's already scaled 100mA, why not just use it as it is?
> It probably already contains the correct shunt to make it 100mA full scale.
> Have you measured it to see what it actually reads?
Usually, but not always, meter cards (scale) will indicate the meter
movement
sensitivity in the lowest right hand location on the card, normally in a hard
to see
location. Like a 10 mA scale might say 50ua in the corner of the card.
Most good Voltage and current meters with over 1 (or so) mA (scale) will expect
a
multiplier or shunt to operate at the scale value.
--
Ron KA4INM - No Micro$oft Products were used in sending this e-mail.
(or any since June 1997)
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