Author Topic: MASTECH MS8218 (0.03% Multimeter) Quick Review  (Read 29058 times)

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Offline Salas

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Re: MASTECH MS8218 (0.03% Multimeter) Quick Review
« Reply #25 on: October 04, 2012, 06:30:35 pm »
Should be the same thing repackaged?
 

Offline Salas

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Re: MASTECH MS8218 (0.03% Multimeter) Quick Review
« Reply #26 on: October 04, 2012, 09:10:31 pm »
Did not find a proper one for the mA range when it popped, I 'll have to get one noted down for next ordering of parts. I never use it to check tube amps bias in mA, I use the Fluke but anyway. Do you know of a spot on logically priced Vref chip to check its DC accuracy since its 5 yrs old?
 

Offline SeanB

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Re: MASTECH MS8218 (0.03% Multimeter) Quick Review
« Reply #27 on: October 05, 2012, 04:51:01 am »
Ad581?
 

Offline Salas

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Re: MASTECH MS8218 (0.03% Multimeter) Quick Review
« Reply #28 on: October 05, 2012, 06:43:45 am »
Nice proposition. I ordered AD581LH +/-0.05% tolerance, +/-0.0225% deviation from 25C, 5ppm best grade. Thanks.
« Last Edit: October 05, 2012, 06:59:40 am by Salas »
 

Offline Salas

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Re: MASTECH MS8218 (0.03% Multimeter) Quick Review
« Reply #29 on: October 05, 2012, 11:49:51 am »
For the time being I got a pair of 0.1% 47K 0.2ppm Z Foil resistors to check. 5yrs old Mastech shows 46.995K delta zeroed. My TH2821 LCR cycles 46.99K and 47.00K can't decide, lacks more digits. (Open & shorted calibration procedure done before measuring at 1kHz range 2, has Kelvin leads). My UT-61E gives 46.93K. No display indecision, repeatedly. My tweaked Fluke 17B 46.9K no display indecision, repeatedly. But no fourth digit to utilize at that range.
 

Offline 0xdeadbeef

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Re: MASTECH MS8218 (0.03% Multimeter) Quick Review
« Reply #30 on: October 06, 2012, 11:24:21 am »
The two mastech's ARE NOT THE SAME.
Don't mistake it.
This mastech is a proper company, unlike the other one the Yihua V&A, a shameless copycat.
Sure it's a copycat and not a spin-off of some kind? If it's really a copycat, it one of the most shameless on this planet for sure ;)

The VA38 is twice the price of the MS8218
At least not here. The MS8218 costs ~150€ around here and the the VA38 sells for ~130€. There's even one shop selling it for 115€.
Not that I would buy one, but it would be interesting to look inside this VA38 to see if it's a rip-off, a rebrand or whatever.
Trying is the first step towards failure - Homer J. Simpson
 

Online Wytnucls

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Re: MASTECH MS8218 (0.03% Multimeter) Quick Review
« Reply #31 on: October 07, 2012, 07:09:05 am »
I wouldn't use any meter on anything above 250 volts. I would leave that to the professionals. ;)
 

Offline SeanB

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Re: MASTECH MS8218 (0.03% Multimeter) Quick Review
« Reply #32 on: October 07, 2012, 10:59:05 am »
Would not use it in the rough, i have meters designed for that. It will look good in a more friendly environment though.
 

Offline Salas

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Re: MASTECH MS8218 (0.03% Multimeter) Quick Review
« Reply #33 on: November 07, 2012, 06:58:02 pm »
Ad581?

They sent me an LH0071 in the end. That is a 10.24V 0.02% binary apps Vref.  Anyway, 10.239V on the 5yrs old MS8218. I guess it holds nicely still.
 


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