Number Dummy gauge help
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Cargo Master
Joined: Sep 2004
Posts: 2,757
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From: Alberta Canada
Number Dummy gauge help
Bill;
I'm trying to verify the rated current of an ammeter I'm using for my F1 cluster gauge, but don't know the rated current value. I don't have the part# with me, but the ammeter came out of an '81 Econoline Van. I'm guessing the ammeter has a shunt resistor internally, and can handle up to 15 to 20 Amps.
Any ideas ?
Tom
I'm trying to verify the rated current of an ammeter I'm using for my F1 cluster gauge, but don't know the rated current value. I don't have the part# with me, but the ammeter came out of an '81 Econoline Van. I'm guessing the ammeter has a shunt resistor internally, and can handle up to 15 to 20 Amps.
Any ideas ?
Tom
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
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From: Simi Valley, CA
Bill; I'm trying to verify the rated current of an ammeter I'm using for my F1 cluster gauge, but don't know the rated current value. I don't have the part# with me, but the ammeter came out of an '81 Econoline Van. I'm guessing the ammeter has a shunt resistor internally, and can handle up to 15 to 20 Amps. Any ideas ? Tom
Ask the question in the electrical forum, 85e150sixmtod or someone else might know.
You might P/M 85e150sixmtod for assistance. He lives in CA, and is listed on the CA member list around page 12.
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Cargo Master
Joined: Sep 2004
Posts: 2,757
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From: Alberta Canada
Thanks Bill; I'll try what you suggested.
I plan on using the Econoline gauge; and want to ensure it will withstand the current draw it will see on the lighting circuit. The 1950 F1 stock ammeter was wired directly through a 30 Amp circuit breaker.
I plan on using the Econoline gauge; and want to ensure it will withstand the current draw it will see on the lighting circuit. The 1950 F1 stock ammeter was wired directly through a 30 Amp circuit breaker.
Cargo Master
Joined: Feb 2008
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From: Windermere Valley,B.C. Ca
Nope, different critter. A shunt ammeter really just a voltmeter calibrated to read in amps, and it is wired in parallel, rather then in series like an ammeter. Wiring it straight through (in series) will let the factory smoke out I think?
Smiles broken (insert smiley face here)
Smiles broken (insert smiley face here)
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 785
From: Simi Valley, CA
Nope, different critter. A shunt ammeter really just a voltmeter calibrated to read in amps, and it is wired in parallel, rather then in series like an ammeter. Wiring it straight through (in series) will let the factory smoke out I think?
Smiles broken (insert smiley face here
)
Smiles broken (insert smiley face here
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Cargo Master
Joined: Sep 2004
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From: Alberta Canada
OK, maybe a different approach to this then. The '90 Crown Vic instrument cluster had an idiot light, which I'll have to trace back but I think it went to alternator. I will be using the '81 Econoline charge meter (voltmeter); which I would substitute where the idiot light wiring was? or will this affect the alternator by introducing a voltage drop in this circuit ?
Tom
Tom
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Cargo Master
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Cargo Master
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From: Windermere Valley,B.C. Ca
[QUOTE=tip49;7074307]OK, maybe a different approach to this then. The '90 Crown Vic instrument cluster had an idiot light, which I'll have to trace back but I think it went to alternator. I will be using the '81 Econoline charge meter (voltmeter); which I would substitute where the idiot light wiring was? or will this affect the alternator by introducing a voltage drop in this circuit ?[/QUOTE
I’m not sure, I wouldn't think so, but if you wanted to be on the safe side if you can just wire the Econo gauge to ignition switched circuit and ground it should (
) work.
So glad to have my smiles back!
I’m not sure, I wouldn't think so, but if you wanted to be on the safe side if you can just wire the Econo gauge to ignition switched circuit and ground it should (
) work.So glad to have my smiles back!
Post Fiend
Joined: May 2008
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From: Poway, Ca.
Nope, different critter. A shunt ammeter really just a voltmeter calibrated to read in amps, and it is wired in parallel, rather then in series like an ammeter. Wiring it straight through (in series) will let the factory smoke out I think?
Smiles broken (insert smiley face here)
Smiles broken (insert smiley face here)
Question on the amp gauge: are you now running a 12 volt system, and is the reason you are using the Econoline gauge because you have modified your instrument panel. If no to the latter, why don't you just use the standard induction loop am meter that was stock? It will handle both 6 and 12 volt.
Julie
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Cargo Master
Joined: Sep 2004
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From: Alberta Canada
Yep Julie;
The 1990 Crown Vic donor wiring is 12 v, that's why I'm using the Econo gauge, so................
The idiot light was wired to a 10A fused circuit, then on to the alternator. I'm going to wire the gauge as per idiot light and watch for smoke signals.
Tom
The 1990 Crown Vic donor wiring is 12 v, that's why I'm using the Econo gauge, so................
The idiot light was wired to a 10A fused circuit, then on to the alternator. I'm going to wire the gauge as per idiot light and watch for smoke signals.
Tom