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| A look at the Uni-T UT210E |
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| Neutrion:
So meter is still fine. On the other hand: DC amp in the lower ranges are quiet good but it is linearly getting worse as I am measuring higher amps with like hundreds of mA off at the end of 20 Amp range. DC offset is 85mA, so I don't think that it is the root cause. Are there still no argument to not to use the calibration procedure with the buttons? In one of the longer YT videos from a german guy mentioned not to use the button method but I still couldn't find any info why it would pose a problem. But also not many people in this forum were trying it either. |
| andyB2022:
Is there a full guide with all the possbile modifications? Like a PDF file or something? Thanks. |
| BillyO:
--- Quote from: Neutrion on January 26, 2023, 02:58:52 pm ---On the other hand: DC amp in the lower ranges are quiet good but it is linearly getting worse as I am measuring higher amps with like hundreds of mA off at the end of 20 Amp range. --- End quote --- Odd. Mine actually measures low in the sub 200ma range. --- Quote from: Neutrion on January 26, 2023, 02:58:52 pm ---DC offset is 85mA, so I don't think that it is the root cause. --- End quote --- Pressing the "Zero" button should get rid of any offset. Offset could be due to magnetized jaws or a prevalent magnetic field in your area. Does changing the orientation of the meter change the offset? |
| Evgeniy:
Hi everybody. Have a clamps UT213C, very similar in schematic with UT210. By negligence, was measured the voltage on a high-current capacitor in a microwave. The device immediately passed out and does not turn on anymore, in all modes it writes "ErrE", if you press SELECT, then in all (except A) it writes "----". There are no obvious burned-out elements on the board. The first thing that came to my mind was the varistors at the input and the posistors, soldered the new varistors - it didn’t help, replaced the posistors (although when measured -+ it matches the nominal value of 15kOhm) with a resistance of 15kOhm, it also didn’t help, the protective resistor at the input, according to the measurement, matches the marking ... I removed the EEPROM, the data is being read, but I tried to write others, when I read it again, it writes again as it was before... (maybe it's the case?) Where to dig further, tell me, please. :-// |
| Evgeniy:
One more picture. |
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