OMG....he did gone done it now......pulling out the words of wisdom from wayback.
I dread to think what our resident experts makes of that clipping.
Should I repair the factory gauges of?
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I dread to think what our resident experts makes of that clipping.
I can live with thatI think you both have very valid points......you could call them a Giraffe if it helps.
They do have characteristics of both ohm-meters and Volt meters......but that's just my opinion of course.
I guess if you held the resistance constant.. but raised the input voltage.. the needle would move.. but you're still just increasing amperage
..no?
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But you can't use an ohm meter with voltage present..... well you can, once!
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Think of the sender as a dimmer switch.. does that help ya? LOL
use 3 aa batteries to check gauge, let sweep and then unhook. Thats how I checked mine.
That's what I'm getting at.. by trying to measure the voltage of 3 batteries, you won't get a reading. You'll get a burnt gauge.
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With a variable 5 volts. It's variable as the ground side has a resistor that changes value via the sender. Gauge is basically reading either full 5 volts at just over "full" (why 10 ohms is actually full) or the resistor reduced voltage amount at "empty", or anywhere else on the scale.
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I think some are confusing the fact that if the 5volt regulator sticks the gauges get fried. That's because the gauge then has 12 to 14 volts hitting it... almost 3 times what it's designed for. The regulator, OE's, are bimetallic bar controlled cycling on and off feeding a pulsed 5 volts.
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I know. I know the answer which one of you is correct. Yes, the gauge is powered. Is it indicating volts, or ohms ?
Not it you just sweep the gauge. Thats how I checked mine to see if they were any good. 3 aa batteries are 6 volt, 5 volts is what the gauges get constant.
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THANK YOU ......for the "recognition"......
BOB RENTON
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Ok! I'm trying to get on board. So what would the gauge go to if it had zero ohms.
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Just slightly beyond the fringe. You'd have had to grow up in the Ottawa Valley to get that one, dealership in Stittsville! Seriously, it would just go slightly past full and possibly damage the gauge.
That was the point I was making about using it as a voltmeter. I guess. But I'm never afraid to be proven wrong. And my knowledge of how analog voltmeters work is pretty limited
the word 'current' is more appropriate here, but that's just my opinion of course.
the word 'current' is more appropriate here, but that's just my opinion of course.
aren't we on the same page? There might have been a thread years ago about this
BOB RENTON is probably sniffing his wine and rolling his eyes by now . ?
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