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Uni-T UT181A and calibration

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2N3055:

--- Quote from: skander36 on March 31, 2020, 08:29:42 am ---That meter was not modified , it was slaughtered . I cannot even watch it .

--- End quote ---
Biggest laugh was how guy got pissed when Joe "gently" pointed out what a hack job he did....

joeqsmith:

--- Quote from: 2N3055 on March 31, 2020, 09:56:52 am ---
--- Quote from: skander36 on March 31, 2020, 08:29:42 am ---That meter was not modified , it was slaughtered . I cannot even watch it .

--- End quote ---
Biggest laugh was how guy got pissed when Joe "gently" pointed out what a hack job he did....

--- End quote ---

Was it really all that bad....
https://www.eevblog.com/forum/testgear/uni-t-ut181a-pictures/msg746347/#msg746347
It was!!!   :-DD   

2N3055:

--- Quote from: joeqsmith on March 31, 2020, 11:27:25 pm ---
--- Quote from: 2N3055 on March 31, 2020, 09:56:52 am ---
--- Quote from: skander36 on March 31, 2020, 08:29:42 am ---That meter was not modified , it was slaughtered . I cannot even watch it .

--- End quote ---
Biggest laugh was how guy got pissed when Joe "gently" pointed out what a hack job he did....

--- End quote ---

Was it really all that bad....
https://www.eevblog.com/forum/testgear/uni-t-ut181a-pictures/msg746347/#msg746347
It was!!!   :-DD

--- End quote ---
Uni-Texas chainsaw massacre.. :-DD

CDaniel:
Sorry to say the obvious but it's a waste of money to buy an expensive Uni-T because it is cheaper than a Fluke  ;D
For AC voltage accuracy should be possible to modify some values at the true-rms converter circuit , of course in this case the AC current could be off more or less ...

Bobson:

--- Quote from: skander36 on March 30, 2020, 03:19:21 pm ---CEM 9979 use a Hycon DMM frontend with a TI cpu but use also a software calibration with no trimpot onboard .
 
--- End quote ---

Do you know how to calibrate 9979? Several years ago I managed to calibrate DC, but I've lost all the knowledge.
My 9979 says "offset left right" "key up down", but nothing changes at any range while pressing cursor keys.

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