Products > Test Equipment
Vichy VC99 Multimeter Review and Teardown
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Simon:

--- Quote from: Kesh on November 22, 2012, 07:14:30 pm ---

I just think hyperbole and categorical statements, without any context about what the device is being used fo, is as daft and juvenile as Mac vs PC vs Linux debates.

--- End quote ---

The "context" you refer to, was just trying to turn the damn thing on !, then trying to measure a resistance with any degree of acuracy and without unrealistic delays in making it's mind up to what the reading will be. Is that self explanatory enough ???
johansen:
I've used two of these meters for about 2-3 years now and i have to say that although they are the cheapest 5999 count mulitmeters on the planet, and i've had some issues with them, i would rather buy 10 of these meters than 1 of the well known 40,000 count Fluke equivalents.

After discovering that the 10 amp Shunt is actually only a meagre 5 milli-Ohms, i drilled two holes in the back of the meter and glued a terminal strip to the back and soldered #12 wires from the terminal strip to the shunt.
that 0-10 amp range is really 0-60 , however an external 5 milliamp shunt rated for 60 amps would be required. either that or divide by 10 would be more reasonable.

The 0-600mA range is really a .48 ohm resistor with a couple others in series (unsure) both have burden voltages of .3 volts. meaning full scale current is 0.3 volts drop. the meter leads it comes with are 24 gauge or smaller.. 0.5 ohms is about what you'd expect, and what's a banana plug between friends (if you know Kelvin? ehehehe)

oh, btw, take out the current shunts and you have a microvolt volt meter.

i have nothing to complain about, it runs on rechargeable AAA batteries just fine.
the ohms measurement could have easily delved past .1 ohms....
but to do that i just use two meters, a D cell battery and a calculator.



ddavidebor:
You say that because you can't afford a fluke prrrrrrrrr
johansen:
i am a cheap bastard.

btw, those cheap 100g/500g/1Kg drug scales on ebay are really 2.4uV to 2.4mV volt meters connected to a strain gauge.

couple that to a precision 2.4/24/240mA current source and you have a 1 micro ohm to 1 ohm resistance measurement device ... much cheaper than a professional micro ohm meter and just as accurate. kelvin clips are on ebay for a couple bucks.
KARADENIZ:
if 6000 counts are ok, I think vichy vc99 is for 32$  http://goo.gl/Z5WJfr a good choice because of its accuracy.
Vichy has the same chip like Uni-t UT61B, UT61C und UT61D (Chip FS9922-DMM4) http://goo.gl/ARBWZ2
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