Products > Test Equipment
Siglent SDM3045X - Enough is enough
Pinkus:
Well it is now a 5.5 digit DMM instead of a 4.5 digit DMM. Function-wise the firmware is (afaik) identical.
Kleinstein:
The resolution and functions should be identical to the SDM3055, but the accuracy would still be lower as the hardware has a few cheaper parts. In addition the calibration can be a bit questionable after the FW change, as there are different ranges. Ideally one would compare it to some reference before and after the FW change to see if something goes wrong - I would not expect it, but better check.
A big advantage with small voltages can be having a resolution of 1 µV in the 200 mV range compared to 10 µV in the 600 mV range. 10 µV resolution would work up to a little over 2 V.
tautech:
--- Quote from: MarkKn on March 13, 2023, 01:35:15 am ---I have not changed the boot settings. It freezes up randomly while measuring dc voltage. I have 2 2045, only 1 freezes. Maybe I can get a replacement. Bought on amazon oct 24, 2022. I suspect its not a firmware issue.
--- End quote ---
Detailed reply in the SDM3045X, 3055 and 3065X thread.
https://www.eevblog.com/forum/testgear/siglent-new-bench-dmm-sdm3055/msg4752410/#msg4752410
bobt:
--- Quote from: Kleinstein on March 12, 2023, 02:42:30 pm ---In addition the calibration can be a bit questionable after the FW change, as there are different ranges. Ideally one would compare it to some reference before and after the FW change to see if something goes wrong - I would not expect it, but better check.
--- End quote ---
basically that is my main concern as I don't have access (yet) to any references..
For now the dmm is 'upgraded', calibration saved and original firmware downloaded and changed if I want to go back to the original version.
Thanks,
Bob
MarkKn:
--- Quote from: tautech on February 04, 2023, 03:49:15 am ---
--- Quote from: MarkKn on February 04, 2023, 03:05:32 am ---My 3045 locked up again—simply measuring dc voltage and it locked in ‘overload’ power off and on resolved. Looking forward to some better firmware.
--- End quote ---
What version are you on ?
Latest is Version: V5.01.01.07R1
Please confirm boot settings ? Default or Last ?
For the last year or so every unit leaves here set to Last and as yet not been contacted by customers with boot problems. Something you might like to also try as if we can find settings that lead to freezes we have better info to give the SW engineers to provide a fix.
--- End quote ---
Thank you for looking into this. I did not change the boot setting and it was set to factory. I changed it to last. I don't know what that setting does, but from your comment, I am interpreting that as a suggestion to boot from last to reduce problems. I note that it has booted without problems, and froze up later, but I am willing to try and see if that helps. Since the problem is intermittent, not sure of a way of knowing that its fixed...
I did register the product with siglent and sent them an inquiry as to warranty service. On the siglent website I was looking at, I could not find anything listing the process for seeking repair under warranty. The email was to sales, but perhaps they will know where to forward it. I am in USA. I like the meter quite a bit in general, I have two of them, but this occasional locking up is concerning. I note that it has only been booted 23 times--I don't use it often.
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