In article ,
"Steve" wrote:

I have the opposite problem.

I want to find a 100 amp, zero center. amp meter to monitor my overall
system..

My alternator and/or charer/invertor put out around 100 amps at the
beginning of a charge, while various tools and appliances draw as much as
10-15 amps each and can total, at times, 30-40 amps.

I don't have a sophisticated battery monitor system, but would like to
monitor the net gain or loss from the battery bank..

Right now I have a 100 amp meter that just drops below zero when the charge
is greater than the current being used. Not very accurate and may not be
good for the meter movement.

What you need to do is put a 100 Amp Shunt in series with the main
battery connection and then buy an appropriatly scaled Center Zero
Meter to connect to the shunt. Paul Hendricks at Hendricks Electric
at Fisherman's Terminal can set you up with this stuff.

Bruce in alaska
--
add a 2 before @

Bruce in Alaska wrote:
"Hendricks Electric at Fisherman's Terminal
can set you up with this stuff."

Not any more they can't. They closed quite a while ago ... another sign
of the times in the industry.

Rick

In article ,
Rick wrote:

Bruce in Alaska wrote:
"Hendricks Electric at Fisherman's Terminal
can set you up with this stuff."

Not any more they can't. They closed quite a while ago ... another sign
of the times in the industry.

Rick


Ok Hmmmm, Oh well, it has been a while since I was down that direction.
Then go over to Lunde Electric and get the stuff from them. They
should have all that stuff in stock.

Bruce in alaska
--
add a 2 before @

Bruce in Alaska writes

What you need to do is put a 100 Amp Shunt in series with the main
battery connection and then buy an appropriatly scaled Center Zero
Meter to connect to the shunt. Paul Hendricks at Hendricks Electric
at Fisherman's Terminal can set you up with this stuff.

For testing purposes you can use the batteries earth lead as a shunt,
and calibrate it with a known load, like a 4 amp nav light. A stout lead
is gonna be in the region of 5-10mV/100A, so you'd need a reasonable
Multimeter.

--
Trevor Dennis
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