Products > Test Equipment
OWON XDM1041 the unknown multimeter...
davebb:
--- Quote from: sigxcpu on June 23, 2022, 01:02:48 pm ---I will leave this information here, for all others that may be hit by my problem.
I've tried to use the utility & firmware provided here https://github.com/TheHWcave/OWON-XDM1041/tree/main/OWON%20firmware , but the meter didn't exit bootloader/restart - finished with error at "checking new version".
I tried to re-flash lots of times with the same result.
Diode/continuity was broken (showing 0 and beeping continuously), "Utility" menu was also broken. Most likely the "calibration" data was corrupted.
I wrote to Owon but I didn't get any response yet, then I've found this repository https://github.com/PetteriAimonen/owon-xdm2041-info/tree/main/bootloader and a crazy idea was born. What if I write the calibration data from 2041 (thank you PetteriAimonen) to my 1041?
To my surprise, it worked, the meter is fully functional again and, based on few tests I did, accurate enough.
Of course, now it thinks it is a 2041 on version 1.7.2 (the actual version is 2.1.2), but I can live with that.
Attached a picture with the broken "utility" menu.
LE: If somebody would be kind enough to dump the calibration data from their 1041, I would be forever thankful :)
The script to do that is here https://github.com/PetteriAimonen/owon-xdm2041-info/blob/main/bootloader/backup_calibration.py
--- End quote ---
Diode/continuity was broken (showing 0 and beeping continuously, Hi I have been getting this on my meter, i have not updated the firmware, i was thinking it was a relay sticking so i changed them, as it did not do this all of the time, some times i restarted the meter and it still did it, i have a nice fluke so i have not used this meter much or had it plugged in to the mains, yesterday i decided to try and get the AMP scale to Beter calibration to my fluke meter, i used my adjustable load and fist put some more solder on the 10a shunt to see were the reading was going then just used some wick and took a tiny bit of solder of at a time and got it to read within 0.4ma at 1amp and at 10Amp it was reading the same as my fluke,
i have now restarted the meter a good few times and the Diode/continuity problem has not come back, do you think it is the firmware just not booting correctly, would it be wise to try and load a different firmware, My firmware version 1.3.0
Thanks Dave
Kleinstein:
For the diode / continuity test one could check if there is a test-current flowing. So use a 2nd meter to measure that current (typical some 0.1- 1 mA depending on the meter).
The diodes testing is relatively similar (mainly showing the result different) to the lower ohms modes, so this may also be effected and wirth a test.
I would not expect a relay failure, more like a bad solder joint or PTC. If the ohms modes work and current is flowing it may be a software problem / cal constant set to zero.
davebb:
Hi if it was a bad PTC would it not do it all of the time ?
anyway i have switched it on and off a lot the last 2 days and i can not get it to do this, at the moment it is all ok, if it goes again i will open it up and try and do some more testing,
Thanks for your Help,
Dave
javican:
I just purchased this on Ali and waiting for it to be delivered, I understand the are still a lot of issues so I'm up for the ride!!!
bffargo:
--- Quote from: javican on August 22, 2022, 05:07:20 pm ---I just purchased this on Ali and waiting for it to be delivered, I understand the are still a lot of issues so I'm up for the ride!!!
--- End quote ---
I just did as well, couldn't pass up a $103 super low price + stackable $9 off $90 and $15 off $100; netting it for $79 ish + tax USD. But will see in a month after it arrives.
I am hoping that like the Riden RD6006 power supply, the firmware magicians can make this into something worth much, much more.
I went with the USB instead of DB9, hoping that will be the best for any future interfacing.
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