Author Topic: Amps AC reading  (Read 2301 times)

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Offline HomerATopic starter

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Amps AC reading
« on: February 10, 2015, 03:37:04 pm »
Hi all,
Another Noob question here.
What should a multimeter (fluke 87) show when there are no leads plugged in and the dial is set to Amps AC?  Would a reading of 0.013 indicate an out of calibration (or faulty) meter?

Many thanks
Alan
 

Online Zero999

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Re: Amps AC reading
« Reply #1 on: February 10, 2015, 03:44:34 pm »
That measurement seems reasonable given that there will be some noise pick up if nothing is connected to the meter.
 

Offline HomerATopic starter

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Re: Amps AC reading
« Reply #2 on: February 10, 2015, 03:50:14 pm »
thanks Hero999, gives me some reassuarance :-)
 

Offline mij59

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Re: Amps AC reading
« Reply #3 on: February 10, 2015, 04:00:47 pm »
Tested my Fluke 87V, goes very very slow to zero.
 

Offline HomerATopic starter

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Re: Amps AC reading
« Reply #4 on: February 10, 2015, 04:03:54 pm »
thanks mij59. I will check that it goes to zero. :-)
 

Offline electr_peter

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Re: Amps AC reading
« Reply #5 on: February 10, 2015, 04:08:42 pm »
Check DMM AC current specifications. TRMS meters have higher offset with no input connected on AC voltage and AC current.
 

Online Zero999

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Re: Amps AC reading
« Reply #6 on: February 10, 2015, 04:14:52 pm »
Have you tried short circuiting the input terminals with a very short piece of wire?
 

Offline HomerATopic starter

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Re: Amps AC reading
« Reply #7 on: February 10, 2015, 05:40:42 pm »
Thanks electra_peter.
No not tried that Hero999. Will give that a go. Don't measure AC amps that offen, more electronics. But just wondered if it meant something was going out of kilter.
Thasnk all :-)
 

Offline retiredcaps

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Re: Amps AC reading
« Reply #8 on: February 10, 2015, 08:53:06 pm »
 


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