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Re: electrical question??

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Author  [Modern View]

03-31-2013 10:39:19

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lets see.. you are unable to wire up an ammeter correctly.. so instead of correcting that.. you want to install a volt meter?

am I right so far?

vm tells you less.. but your machine.

vm references ground and switched power...

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xring 223

03-31-2013 13:44:52

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 Re: electrical question?? in reply to soundguy, 03-31-2013 10:39:19  
the amp meter reads o or discharge motor running, discharge with lights on. It is a two post amp meter +/- . Positive from alt. neg down stream. Why wont it read amp. But the volt meter will tell me it is charging, that is my concern. thank you

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03-31-2013 15:16:07

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 Re: electrical question?? in reply to xring 223, 03-31-2013 13:44:52  
Quoting Removed, click Modern View to see

xring, HCooke, Dell and I all answered your initial question, which was "how

do I hook up a voltmeter".

souNdguy is giving you solid additional information on why a correctly

wired ammeter may serve you better and I agree with him on that front.

All of my tractors that came with an ammeter still have them.

The value of any meter relies on the operator's ability to pay attention to

it and know how to interpret what it is telling you.

There in lies the argument for idiot lights instead of meters at all.

If you want the voltmeter hook it up as described.

If you want help fixing the wiring on the ammeter, we can help there too.

If you'd rather have a light come on and grab your attention, that's another option.

Your tractor. :)

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03-31-2013 14:27:47

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 Re: electrical question?? in reply to xring 223, 03-31-2013 13:44:52  
the ammeter will tell you it's charging. the volt meter won't tell you as much.

difference between 12 and 14 on the average jittery tractor running voltmeter is near impossible to read. now.. lets say the alt goes south and you are running off the battery. by the time the needle on the VM is low enough for you to figure that out.. the battery may already be at 10.5-11.5v and for a lead acid battery.. that is effectively 'discharged'.. thus possibly leaving you stranded with a no start condition.

an ammter setup as center 0 net charge discharge shows charge and discharge deflection.

for an ammter like that to read correctly, you need charge line and all loads on one side of the ammeter, and the side ONLY connected to battery.

better to fix what you have.. IMHO.

again.. your machine. you might have better luck wiring a volt meter even if you can't wire an ammeter.

of course.. it's possible the ammter is bad.. in which case.. I'd sepnd the money on a new one.. vs a volt meter.

if you think the ammeter is bad.. reverse the wires.. see if it reads sligth charge instead of the discharge.. if so.. you know it is reading current both ways and the real problem is in your wireing or charge circuit.

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