i am doing a project "VARIBLE POWER SUPPLY" of 0 to 30V and at an ammper rating of 5A. I would like to have an inbuilt ammeter and voltmeter can anyone tell me what are the most economical ammeters and voltmeters
2007-02-21 02:18:39 · 3 answers · asked by vls 1 in Science & Mathematics ➔ Engineering
You want panel meters.
There are 2 kinds: analog and digital
Jameco.com (among others) sells both kinds.
The analog meters are US$8.79 each, and they have the exact kinds you want (0-30VDC and 0-5ADC)
The digital meters are 12.95 each, but they are voltage-only, so to measure current you'll need a shunt resistor and use the 200 mV scale.
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2007-02-21 03:37:01 · answer #1 · answered by tlbs101 7 · 0⤊ 0⤋
I needed the same measurements for my Motor Home, so I bought a couple of cheap VOM's from Harbor Freight Tools for about $5 each and mounted them permanently where I could read them... One for DC Volts and the other for DC Amps (up to 10 Amps).
2007-02-21 02:27:25 · answer #2 · answered by Anonymous · 0⤊ 0⤋
You can get a multi-meter from http://www.harborfreight.com for about $5 that will do all that plus more.
2007-02-21 02:27:28 · answer #3 · answered by J P 7 · 0⤊ 0⤋