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> -30 to +30 Amp meter, wiring?
brer
post Aug 2 2005, 01:59 PM
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anyone know how these things work?
it has

+A and +B large power connections on it.

any electricians out there?

i can post a photo later tonight if needed
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Demick
post Aug 2 2005, 02:44 PM
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Sometimes for a dash mounted ammeter, they have a shunt that is installed between the battery and positive lead. The 'ammeter' then measures the voltage drop across the shunt and figures out (and displays) how much current is going through it. That way, you don't have to run the current of the entire car through the ammeter.

Demick

P.S. not sure if 'shunt' is the right word.
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Posts in this topic
brer   -30 to +30 Amp meter   Aug 2 2005, 01:59 PM
Dr. Roger   they work in series. just pop out the fuse for th...   Aug 2 2005, 02:07 PM
ClayPerrine   IIRC... an amp meter has to go in the line between...   Aug 2 2005, 02:11 PM
lapuwali   I suspect he means a dash gauge, not a handheld me...   Aug 2 2005, 02:13 PM
Dr. Roger   <...   Aug 2 2005, 02:21 PM
Demick   Sometimes for a dash mounted ammeter, they have a ...   Aug 2 2005, 02:44 PM
brer   yes this is a period dash guage i have, it matches...   Aug 2 2005, 02:57 PM
lapuwali   Period meaning for older Porsches with 25 amp gene...   Aug 2 2005, 03:08 PM
brer   riiiiiight. I think its clear now.
 

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