Products > Test Equipment
Uni-T launches the UT117C multimeter
makz:
--- Quote from: geb on August 25, 2023, 03:15:43 pm ---
Belated followup to makz:
--- Quote ---six digits off - 5.0006 instead of 5V? I understand correctly?
--- End quote ---
Yes, basically 5.0006, 500.06 mV, etc. And reading a 0.01% resistor goes in the other direction, 50K is 49.995 and so on. And 1.0V and 10K are off by a smaller amount, and so on up to 5.0V and 50K. My takeaways from that were... 1) I'm hopeful that the readings across each scale will have better linearity than my other 4+ digit cheap meters. 2) Not an offset issue (FYI 0V is 0.0000V). 3) They might have copied the calibration EEPROM from a known-good calibrated unit, and this unit's voltage reference is off by '6'.
--- End quote ---
In my opinion, the accuracy of your multimeter is very good. mine is much worse
BILLPOD:
Yes, basically 5.0006, 500.06 mV, etc. And reading a 0.01% resistor goes in the other direction, 50K is 49.995 and so on. And 1.0V and 10K are off by a smaller amount, and so on up to 5.0V and 50K. My takeaways from that were... 1) I'm hopeful that the readings across each scale will have better linearity than my other 4+ digit cheap meters. 2) Not an offset issue (FYI 0V is 0.0000V). 3) They might have copied the calibration EEPROM from a known-good calibrated unit, and this unit's voltage reference is off by '6'.
My results are similar. My main 'Likes' are the strap w/magnet, and the blue tooth, but I wish the software worked on a windows laptop.
The manual says the current clamp can read DC current, but I couldn't get any DC reading. And I could get no AC amperage readings below 1.5 ADC. Also, the current clamp, (UT-CS06A), works with some of my other DMMs, in mV mode, like my Brymen 869S and Fluke 189.
I paid $72 USD for just the meter, which took exactly 20 days to my doorstep, but I see it adv. now for $64.
Overall, I'm happy with the resolution and accuracy, and I'm glad I got it :popcorn:
ledtester:
--- Quote from: BILLPOD on August 25, 2023, 05:40:04 pm --- My results are similar. My main 'Likes' are the strap w/magnet, and the blue tooth, but I wish the software worked on a windows laptop.
--- End quote ---
You might be able to run the Android app on a Windows system:
https://www.pcmag.com/how-to/3-free-ways-to-run-android-apps-on-your-pc
EEVblog:
--- Quote from: sonpul on August 25, 2023, 01:13:16 pm ---Maybe. But UT117C is built on the basis of HY3131 which is 50000 counts. I saw the same in table Owon for 55000. On the same is made UEI EEvblog UE121GV. Is he 6000? And declared for 50000.
--- End quote ---
The 121GW is 50,000 count, as per the HY3131 spec.
The accuracy and stability is primarily determined by the external voltage used, and the external voltage divider, not the chipset.
EEVblog:
--- Quote from: gamalot on August 25, 2023, 04:23:43 pm ---I found the picture on a Chinese website "数码之家", the voltage reference is MAX6190
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That's the best A version with 5ppm tempco. This should be pretty good.
Perhaps they have divider drift issues or something.
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