Jim,
If an ammeter "shorts out", it'd likely not affect the trailer brakes
(unless it shorted to ground).
You have to look at the probabilites: The most-likely place for a
malfunction is at your trailer connector. Next most-likely failure point
is the wires to the individual brake magnets. An ammeter is really quite
reliable and I feel adds little "trouble factor". What tiny bit of
unreliablity is added by the meter is more than compensated for by the
information you receive.
Similar to an oil pressure guage on your engine. Plumbing one in adds a
potential for leakage, but many folks feel that the added information is
worth the slight risk.
<<Jim>>
Jim Greene wrote:
>
> On Fri, 9 Feb 2001, Jim Dunmyer wrote:
>
> > Jim,
> > You wire the brake ammeter in series with the output wire from your
> > brake controller. This is the wire that feeds power to the trailer
> > brakes.
> >
> > Like any other ammeter, it's wired in series with the load, a voltmeter
> > is always wired across the load.
>
> I was wondering if there was a chance of losing the brakes if the ammeter
> shorted out or otherwise malfunctioned. I'm leery of cutting into the line
> to the trailer brakes but maybe it isn't anything to be concerned about.
>
> Jim Greene
> '68 Tradewind #1148
> Atlanta
>
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