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post #1 of (permalink) Old 04-09-2002, 03:27 PM
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Altinator output

Can I tell with a digital mulitmeter how many amps I am getting from my current Delco altinator? If so, where do I connect the leads, and what do I switch the mulitmeter to?

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post #2 of (permalink) Old 04-09-2002, 03:47 PM
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Re: Altinator output

No. Not directly. Typical DMMs measure current in milliamps; usually 500 or so, which is half an amp. You would need to put a very high capacity low value resistor (200 Watt, .5 Ohm for example) from the output lug to the battery (a shunt), measure the voltage across the shunt, and apply Ohm's law to calculate the current flow.

This is how the remote shunt ammeters work.
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post #3 of (permalink) Old 04-09-2002, 04:17 PM
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Re: Altinator output

Jim Lou is correct....MY advice: Screw Ohm's law...take it to Autozone or competitor, and ask them to check it...they have a tool that will do it while on your vehicle, as well as one that will do it on a bench if you take it into the store in your hands.

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