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Just got a Fluke 87 ture rms multimeter My link

I don't know if it is accurate or what but i read the owners manual and am mind boggled. how do I tell the voltage readout on this thing?

It says ac voltage=2.5 but i know thats not right. any ideas??

Thanks

Matt Cusack

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for starters what are you measuring?

battery voltage?

amp output?

but i assume you are measuring the amp output b/c you are in the a/c setting and you are setting your gain...

so with this first disconnect the sub then put the dmm into those terminals and play a 50-60hz tone and turn your h/u 75% of the way up and this is for the sub stage i am talking about

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I'm trying to measure the voltage on my amp so i can adjust my stinger voltage meter

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o in that case put the fluke on DC the --- not the ~ symbol and touch the positive and negative terminals on the amp, where you plug the wires into to give the amp power!

remember the amp TAKES DC voltage and outputs A/C voltage

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not a thread high jack... but...

I want to setup my JL Audio amplifier so I can get the correct gain setting...

IMG_20100919_235307.jpg

What do I select on my DMM? Thanks

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not a thread high jack... but...

I want to setup my JL Audio amplifier so I can get the correct gain setting...

What do I select on my DMM? Thanks

2 Clicks to the right. 200 acv

Black cord in the com port, red cord in the left port. (10a)

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not a thread high jack... but...

I want to setup my JL Audio amplifier so I can get the correct gain setting...

What do I select on my DMM? Thanks

2 Clicks to the right. 200 acv

Black cord in the com port, red cord in the left port. (10a)

Thanks... Jumping in the car now! :)

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So I tried last night and again this morning .... Only thing that happened was this threw my amplifier into "low impedance" mode ... I didn't get any real readings at all... :(

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So I tried last night and again this morning .... Only thing that happened was this threw my amplifier into "low impedance" mode ... I didn't get any real readings at all... :(

The red cord actually goes into the right port. A is for Amps, V ohm etc is what you want for voltage.

edit: Whoops, your left, not the pictures left lol. Disregard this if you put it in the right one.

Edited by ulrisa

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