BenB
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| posted on 29/9/10 at 05:38 PM |
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Multimeters
Does anyone know what RDG is in terms of multimeter resolution.
I'm trying to find some rather accurate voltages and it's doing my nut in.
My multimeter is cheap and nasty so I'm looking for a better one, I've found one with a stated resolution of
0-20v, 10mV resolution, accuracy +-0.8% RDG =- 1 digit
Do what?
Does that mean anything to anyone?
I could just buy a fluke but would like to be able to compare DVMs to see what what....
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splitrivet
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| posted on 29/9/10 at 06:00 PM |
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Far as I'm aware it stands for reading.
Cheers,
Bob
I used to be a Werewolf but I'm alright nowwoooooooooooooo
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stevebubs
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| posted on 29/9/10 at 06:13 PM |
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shamelessly copied from a google link
With DMMs, the measurement accuracy is generally expressed as: ±__% of
reading + __digits. ( "Reading" refers to the reading value, and is abbreviated
as "rdg" ; "digits" refers to the number displayed in the smallest decimal
place, and is abbreviated as "dgt." ) This expresses the range of values that
a DMM may measure or represent for a given actual value.
[Edited on 29/9/10 by stevebubs]
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grusks2
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| posted on 29/9/10 at 07:07 PM |
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I use a 'Fluke' multimeter at work very very good but not cheap £109, god nows why as all i ever measure is 12 or 24 volts lol
http://mac1worxbuild.wordpress.com/
forgot my old password so another username doh
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matt_gsxr
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| posted on 29/9/10 at 07:33 PM |
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I have one of these:
Automotive Multi-Purpose Multimeter UT105
It is particularly good because it can do RPM and dwell (not sure how dwell works, but RPM is good for calibrating and emissions stuff).
Precision is good enough as long as the battery isn't on the way out (in which case it is pants).
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ashg
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| posted on 29/9/10 at 08:46 PM |
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I have got a fluke 87v accurate to 0.0000v +/- 0.05% got it for a silly price in the states would hate to have to replace it here in the uk.
if you dont want to stretch to fluke prices some of the more expensive uni-t ones in maplin should do the job
Anything With Tits or Wheels Will cost you MONEY!!
Haynes Roadster (Finished)
Exocet (Finished & Sold)
New Project (Started)
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BenB
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| posted on 29/9/10 at 09:09 PM |
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Cool, it's really only to check that my knocked off B6 Lipo charger isn't cooking my Lipo packs so it's not worth spending silly
money (in that it would be cheaper to buy a proper charger!!)...
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twybrow
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| posted on 29/9/10 at 09:27 PM |
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My father in law picked up my multimeter at a car boot sale. It is a Fluke, and still has the 50p sticker stuck to the case! 
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l0rd
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| posted on 30/9/10 at 12:21 AM |
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quote:
Originally posted by twybrow
My father in law picked up my multimeter at a car boot sale. It is a Fluke, and still has the 50p sticker stuck to the case!
I'll give him £1 if he wants to sell it.
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