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simple Voltage display idea 

 

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 Post subject: simple Voltage display idea
Posted: Sun Dec 11, 2005 10:39 pm 
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can i use a 12v plug and terminate it to a multi meter, would its read out be accurate through, i havea cheap DSE ine here and fluke taht i cna use for spl comps when needed at work
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Posted: Sun Dec 11, 2005 10:41 pm 
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would need direct connection to battry to be most accuratei spose

 

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Posted: Mon Dec 12, 2005 4:11 am 
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It's a shame the trip computers can't display that information, would be good.
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Posted: Mon Dec 12, 2005 8:00 am 
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how accurate do you need/want it to be?

 

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Posted: Mon Dec 12, 2005 11:27 am 
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justto keep an idea on volts so i cna see if i should let my amp burp again.it should be prettya ccurate shouldn't it? there should be jack all resitance, an dteh meter shoun't ahve to much lag. esspically with the top of teh range fluke
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Posted: Mon Dec 12, 2005 6:07 pm 
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yer if u run it straight to the battery +ve and a close good earth with at least 5mm wire it should be decent.

or just buy a volt meter gauge will look heaps nice in the car

 

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Posted: Tue Dec 13, 2005 2:11 am 
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Posted: Tue Dec 13, 2005 11:05 am 
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Connect it directly to the positive terminal of the amp so you can see what the voltage is there as it will be lower than it is at the battery.

Voltage display from Jaycar or Tandy about $20 and you can install it anywhere.

I have one and it works well.

 

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Posted: Tue Dec 13, 2005 4:23 pm 
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yea do wat pyro said, a multimeter isnt really practical, and just to answer ur statment :P they have a huge resistance so that they dont load the cct wen measuring voltage, because if the meter was low r, then u wud be creating a short cct with the meter :P. Just some random info for ya :D

 

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