If the gauge has positive and negative directions on the scale (usually the case with
automotive ammeters) you will not cause any problems, the only possible problem is
connection between +12V and ground (I've blown so many fuses in my multimeter by
trying to test voltage with the multimeter still set to read current). Conceptually
you simply want to insert the ammeter in series with the wire carrying the current you
wish to measure. Which way you connect the ammeter (still in series) will only
change the apparent direction of the current flow.
Luke Clough
Michael Foreshew wrote:
> In the process of wiring up a couple of gauges and I was wondering what the correct
>way of wiring in the Ammeter is. The others are straight forward (oil Pressure and
>Water Temp) but I am stuck on the Ammeter and I don't won't to set things on fire.
>
> Any help would be great.
>
> Cheers
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