> -----Original Message-----
> From:On Behalf Of Dick Kennedy
> Sent: Sunday, August 09, 1998 10:17 PM
{snip}
>When DVM's are in current mode they are actually
>measuring voltage across a calibrated meter shunt. >It's possible to use a
length of wire or measure across >an existing wire to create your own meter
>shunt.
At work, I chase DC current loops and the mischief they create for a living.
I have an English made Simpson clamp around DC 'amprobe' style meter. It
cost the company about $3,000 and it's worth every penny.
At home, I have a Japanese made Extech Instruments AC/DC clamp meter that I
got from:
Bob Cain - The Meter Man
PO Box 1280
Bethany, OK 73008
v: 405-722-0339
It is just as accurate as the Simpson. It does AC, DC, temperature, voltage
and resistance. It cost less than $200, and it too is worth every penny.
If you want to find out where you're 'leaking' 12 volt power (and how much)
this is the ultimate tool for the job.
A 12 volt test light in series with the suspected circuit (as well described
in Dick Kennedy's message) works great, but if you have problems you can't
resolve, get your hands on a clamp style DC meter and you'll make quick work
of solving any DC related problem.
Mark
> From:On Behalf Of Dick Kennedy
> Sent: Sunday, August 09, 1998 10:17 PM
{snip}
>When DVM's are in current mode they are actually
>measuring voltage across a calibrated meter shunt. >It's possible to use a
length of wire or measure across >an existing wire to create your own meter
>shunt.
At work, I chase DC current loops and the mischief they create for a living.
I have an English made Simpson clamp around DC 'amprobe' style meter. It
cost the company about $3,000 and it's worth every penny.
At home, I have a Japanese made Extech Instruments AC/DC clamp meter that I
got from:
Bob Cain - The Meter Man
PO Box 1280
Bethany, OK 73008
v: 405-722-0339
It is just as accurate as the Simpson. It does AC, DC, temperature, voltage
and resistance. It cost less than $200, and it too is worth every penny.
If you want to find out where you're 'leaking' 12 volt power (and how much)
this is the ultimate tool for the job.
A 12 volt test light in series with the suspected circuit (as well described
in Dick Kennedy's message) works great, but if you have problems you can't
resolve, get your hands on a clamp style DC meter and you'll make quick work
of solving any DC related problem.
Mark
