Adjustment for Uni-T UT71E

[jf_ED]

Hi Everyone,

I am having trouble for adjusting voltage and current values of UNI-T UT71E.

Can anyone help me for this matter?

AC values are out of tolerance same as well in the current.

I'm searching in the internet for the schematic diagram of this UT71E, but sadly lower versions of the unit I searched.

thanks for the help in Advance.

[retiredcaps]

What reference or other meter are you comparing to that makes you think the UT71E is out of tolerance for basically every reading?

Please give us examples of your readings.

[Lightages]

Here are some videos to help, and all the files attached are for the UT71E. Two of them are with a filename for the rebranded version from Voltcraft. I have added another more complete calibration procedure.

[jf_ED]

Thanks for this. Big Help. I tried to adjust all VR's. Before the first calibration, the out of tolerance value is at micro Ampere only, but I already turn every VRs, I think I need to re-calibrate every function.

Again, thanks for this.