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Old 05-05-2012, 06:17 AM
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ampmeter hookup

can any one tell me how to hookup ampmeter .thank you.JR

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Old 05-05-2012, 07:30 AM
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volt meter

Unless you are restoring an old car that only has a 30 or so amp output you are better using a Volt meter. An amp meter is wired between between the battery and all other electrical connections, Loads, and output from your generator. It shows if current is being drawn from the battery or if your are recharging your battery. Today with high electrical loads and wire sizes needed a volt meter gives a SAFER and better indication of your electrical system.
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Old 05-06-2012, 07:31 AM
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You can also wire an ammeter using a shunt (if the gauge is designed to use one), which means the full current flow does not go through the meter. However, most older ammeters that use a shunt seem to get more and more inaccurate over time. I assume its because the deterioration of the wiring and the shunt affect the gauge readings.

As timothale mentioned, its much easier to wire a voltmeter, and you can get information that is just as useful. As long as the voltmeter shows the system is at about 13.8-14.5V, regardless of load, you have enough alternator output for your vehicle.

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Old 05-06-2012, 07:52 AM
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Originally Posted by john ravenscroft
can any one tell me how to hookup ampmeter .thank you.JR
I will agree with the other posters but if you really want a ammeter, look here for instructions.
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