Products > Test Equipment

A look at the Uni-T UT210E

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Docsaad:
I did not try using a variable load to calibrate. I will do that and post the results. Thanks for the idea :-+

stj:
have you actually read the chip datasheet??

you need voltage and current references of a specific value!

agaelema:

--- Quote from: stj on July 28, 2018, 05:20:39 pm ---have you actually read the chip datasheet??

--- End quote ---

Using Google translator (camera)  ;D
Section 12 talks about the calibration process.


--- Quote from: stj on July 28, 2018, 05:20:39 pm ---you need voltage and current references of a specific value!

--- End quote ---

Not exactly.

In the calibration mode, the screen shows the measured value and you can change the "gain" pressing the hold button (if I'm not wrong). The unique limitation is the range of value and the minimum increment/decrement, e.g., you can change from 260mV to 270mV or 250mV, but the real value can stay between these values. Because of this, it's necessary a stable, but variable reference of voltage or current.

imett:
Here the schematic  8)
(is public, found in conrad)

djQUAN:
I had my 210E for a while and thanks to this thread, made mods on the AC/DC order at power on, 6000 count, 4hour auto power off, unlimited backlight, NCV in mV.

I wanted a second unit but it was not available locally so I got myself a 210D instead and also decided to do most of the same mods. Worked just as well! There were some little differences in the function addresses so I did not mess with them much, I just changed the DCV, ACV order, added mV function on the AC volts, 6000 count, auto shut off and backlight timers.

I also run my 210E with a li ion 10440 cell via a 3.3V LDO. Lasts quite a while and backlight is a bit brighter, beep is a little louder too.

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