Absolutely BRILLIANT! What luck to stumble across this - I have the exact same clamp meter arriving from Amazon today, for a parasitic draw issue where the extra resolution will be really welcome. This hack addresses the two most common review complaints - the short light-on period and the defaulting to AC. Thanks again

@Raphael_Hofmann

4 ай бұрын

I am glad to hear that 😌

Amazing! i used to do these kind of things with CPUs in the 1980's!! So much more accessible and affordable to hobbyists these days.

thank you for this, I have more than 6 meters and the biggest issue is the default AC mode, now I can change. Just need a talking version....only one available in the US and they will not ship....thank you again and the originator for your efforts.

Perfect display and splendid explanations. You helped me a lot with your video!

Many thanks, great work. Passed on from Andy with his Spat 🤣

Very nice video, super helpful 👍

Well done, saw you on Andy's channel.

Perfekt! - Mit Deiner Anleitung kann eigentlich nichts schief gehen.

@Raphael_Hofmann

9 ай бұрын

Das freut mich!

Just got the exact same Programmer, and had a go at my UT210E Pro. (Newer version, including Frequency) The programmer clamp is a bit flaky, but I got it to connect properly with the EEprom. Swapped AC and DC, since I work mostly in automotive and battery devices. Set Backlight to Infinite (0) Set Aoto Off at 60 Minutes. Added AC mV as a second function on the NCV so it reads a voltage to more exactly search the conductor in a wall by going to its peak value. Wrote that to the EEprom, and it works as desired for me. :-) Very good video, and with your help I reporogrammed that meter perfectly to suit my needs.

@Raphael_Hofmann

9 ай бұрын

Amazing!!! I am glad to hear that! Thank you for sharing your experiance with the UT210E Pro 👍

@Raphael_Hofmann

9 ай бұрын

I am curious, where you bout it. Would you share a link in the comments?

came from andy ,,,, grate vide let me see if i can do this to my multimeter grate video keep it up

some considerations about this hack: you get more resolution, this is good. But you don't get more precision, this you have to consider when interpreting your measurement. In every range you get 199 to 1999 counts, this is a resolution from 0,5% to 0,05%. The best precison is 0.7%+5 digits in DC-V (see on data-sheet). All others are worse. This matches well. The hack increases the resolution from 999 to 9999 this means 0.1% to 0.01% this is far away from the over-all precison. And you can't calibrate it better, becaus the whole hardware is not better. There are errors in linearity, temperature behaviour, magnetic errors, and many more. The better choice for measuring dc-voltage would be a real 4-digit multimeter.

@Raphael_Hofmann

9 ай бұрын

I agree. Let me know, if you find a meter, that is a good competitor to the UT210E.

@pedroveloso9707

9 ай бұрын

@@Raphael_Hofmann .... 3 digits, resolution for 50 bucks ...kkkkkk dream on ( just playing)

@NicksStuff

8 ай бұрын

You get more precision, you don't get more accuracy. But I think Uni-T make meters that are 6000 or 8000 count with the same chip, it makes sense to believe that 2000 count limit is set fairly low, doesn't it?

@Raphael_Hofmann

8 ай бұрын

Yes, I recommend to set 6000 or 8000 count...than you are in a safe range and it works well...if you have PWM DC-currents, rather do the 6000 count mod.@@NicksStuff

I found a way to increase the measurement range from 100A to 1000A. I will also upload a video on how to do that soon: kzread.info/dash/bejne/jKFl1cavh7Kugpc.html

So helpful.. Thanks! Subbed here!

This is amazing

The voltage range should be at least 6 volts. Because 5 volt voltages are very common. The UT210 is very popular because there are well-documented hacks are available. It is not necessary to take out the batteries.

Look at the write protect line (WP) on the EEPROM in UT210D. If it's pulled down to GND, you can't write to the chip. Chances are you'll just have to desolder the part and program it out of board.

@Raphael_Hofmann

8 ай бұрын

You are probably right...but I already gave it to a friend...so I can't try it right now.

NVC DIY FIX: use Bounce sheet (the sheet you put in your drying machine) and rub it on the meter and the test lead and the housing... it will prevent the meter from getting statics and beep for no reasons...

@Raphael_Hofmann

9 ай бұрын

I don't have such a bounce sheet. But thanks for the recommendation anyways 👍

@simonspeaker

9 ай бұрын

@@Raphael_Hofmann its bounce or fleecy or snuggie etc something like that hahaha

Thanks for the video. Does this work for other UNI-T meters? I have the UT216C model.

@Raphael_Hofmann

9 ай бұрын

I do not know. I belive, that it is possible for almost any meter. But you have to know from some kind of datasheet or leak of a manufacturer, how to decode the EEPROM dump. For the UT210E, a lot of peple took their time to decode those features.

Excellent video Raphael! I just purchased the UT210D model that measures temperature and frequency too. Do you know if this type of hack has been worked out for that model? Thanks again for the effort to put this information out.

@Raphael_Hofmann

10 ай бұрын

Apparently it is possible as well...but I did not find a hint so far on how to do it. I was able to read the chip, but I could not write the changed settings. Maybe you have to desolder the chip. But I did not try that.

@pedroveloso9707

9 ай бұрын

@@Raphael_Hofmann some boards have pin 7 (WP, write protect) grounded, so you cant write in circuit, lift pin 7 or remove chip.

@Raphael_Hofmann

9 ай бұрын

I should try that...but I just got rid of my UT210D @@pedroveloso9707

Wonderful How-to video. Thank you. Can you advise what markings are on your EEPROM chip in the UT210E? When using the settings you have used (24_EEPROM, ATMEL, AT24C02) I get a message indicating the chip is empty. Rechecked connection & tried other Chip types but still returns the chip is empty. Mine has PC24C08C & 1L2TG5 and there does not seem to be a corresponding chip in the ESP2019 software nor on Google. Interestingly, when I used the Test option, the software identifies the chip type as 93_EEPROM.

@Raphael_Hofmann

8 ай бұрын

On the EEPROM, I can find this information: P24C08C 2K2TN2 Or: T24C08A 20NB3 Did you try to file off some plastic on the clamp, so that it can reach deeper in and is not stopped by the metal housing next to the chip?

@Raphael_Hofmann

8 ай бұрын

You can also try to swich the meter off and on again. It worked well in the 2A range for me. Just make sure, you saved the original EEPROM DUMP for a backup, befor you write your modified code to the EEPROM. You can always go back to the original state and start from scratch with your settings.

@Raphael_Hofmann

8 ай бұрын

If you have no success at all, you could attempt to desolder the chip. There are also other videos on youtube on this topic. I recommend to whach them all. You might find some valuable information there.

@bipedalprimate8109

8 ай бұрын

@@Raphael_Hofmann Yes filing off some plastic did work but the clamp is then quite difficult get a grasp on the chip. Finally did work - thank you.

Any idea with the modes what the meter accuracy and stability are now?

@Raphael_Hofmann

9 ай бұрын

The accuracy did not change, as far as I can tell. But the main benefit of the mods are the increased resulution. Therefore you can see small changes in voltage over time. I ran into a problem on some of the meters, that I modded: Some of them just get stuck and do not show OL (overload), when the current exceeds the range. If you reduce the range to 9000 count or even 8000 count in some cases, it works just fine. For a 8000 count meter you could set the parameter "Full Scale:" to 8000 and "Range Switch Upper Limit: " to 8200". Than it works just fine. It has to do with the calibration of the Multimeters.

There's probably a reason these come up in AC mode - that form factor of meters probably gets used a lot by people doing field work on mains stuff, replacing traditional voltage testers. You want to make it really hard to accidentally put the meter in a setting where dangerous voltage mains is not displayed/gives odd readings mistaken for leakage....

@NicksStuff

8 ай бұрын

Makes sense. But these offer a DC setting on the current clamp, which is fairly rare and won't interest electricians who work on mains voltage. So your point is valid but a lot of the buyers of these meters use them to work on DC almost exclusively.

So can this be done for cheap Chinese DMM? like aneng and zotek with 2000 6000 count?

@Raphael_Hofmann

2 ай бұрын

I do not know, which chips they are using...if anyone can decode the EEPROM dump, and you are able to write your own version on the EEPROM, it might work.

do you know a way for the lcd backlight to be always on instead of 10sec?

@Raphael_Hofmann

9 ай бұрын

10:46 Yes, set it to 0

waw great hack,i own the ut210d and after entering to calibration mode by pressing select button and hold button doesnt work well,do you know if there is any way to hard reset or something? thank you

@Raphael_Hofmann

3 ай бұрын

That might be a useful detail for people who have the UT210D. Thanks for this comment! As far as I know, there is no way to hard reset. And even if you do that, you loos all the calibration values from the factory. So it is best to save a copy of your EEPROM dump before you do any modifications.

@radu_mol2935

3 ай бұрын

@@Raphael_Hofmann i will return the clamp in warranty and see if they want to replace it

My UNI-T UT 110E Multimeter works fine after desoldering the eeprom and read with GALEP-III, then I programmed a new eeprom and soldered it in. The 8-pin clamp is useless, it doesn't fit anyway. 5pin connector did not work with my programmer, only one line was read. The ASIC Chip in my multimeter has no markings, they have been scratched away!

@Raphael_Hofmann

8 ай бұрын

I am glad, that it worked for you at the end.

mmmm, funny thing here. I adjusted the flashrom as explained but now the meter became very slow. All readings can take 3-5 seconds before a stable reading is found or a beep (in continuity mode) is heard. I'm thinking of flashing back to the original settings ... I had unsoldered the flashrom, bit of work. unexpected... :(

@Raphael_Hofmann

9 ай бұрын

That is quite some effort. I wonder why it got slow. But you saved the original EEPROM Dump (file), right? I executed this hack in circuit with 5 meters already and it worked every time. But I filed of a bit of the clip in order to get a better grip on the chip.

Hi! How to hack if i have 24c08 eeprom on it?

@Raphael_Hofmann

6 ай бұрын

I don't know. Does it not work with the same settings?

@equilibrusman

6 ай бұрын

@@Raphael_Hofmann it works, same addresses, always make backup!

Didn't work for me. Display of UT210E showd ErrE while connecting the reader.

@Raphael_Hofmann

9 ай бұрын

Check out Minute 4:15 of this video...you could try to shave of some of the plastic on the clamp...than you get better contact. kzread.info/dash/bejne/iJ5qxI-cnLy6mdY.html

@Raphael_Hofmann

9 ай бұрын

It does not matter, what the screen shows while reading...it should switsch off and on all the time, once you started reading the chip. I did that to multiple meters now and it always worked well.

The EZP2019+ reads but the file is empty

@Raphael_Hofmann

8 ай бұрын

Have a look at this Video for troubleshooting: kzread.info/dash/bejne/ZZaHyZezYcSrZ7Q.html

wear you locate i in kissimmee fl i can send the unit and lead me know your charge and i send Zelle thank you from your amigo hector

@Raphael_Hofmann

9 ай бұрын

I am in Germany and shipping to your country might be expensive. Bank transfer or paypal would work for me. Where are you from?

@caserio323

9 ай бұрын

@@Raphael_Hofmann ORLANDO FLORIDA USA

@Raphael_Hofmann

9 ай бұрын

@@caserio323 I see...you could try it yourself first. But if you really want me to do it for you...there might be high custom fees from Germany to USA.