Author Topic: Siglent Bench DMMs SDM3065X, SDM3055 and SDM3045X  (Read 493611 times)

bateau020, danno_cj, skander36, msemhs and 7 Guests are viewing this topic.

Online Martin72

  • Super Contributor
  • ***
  • Posts: 7056
  • Country: de
Re: Siglent Bench DMMs SDM3065X, SDM3055 and SDM3045X
« Reply #2000 on: November 30, 2024, 10:52:43 pm »
Pics I´ve made from the reference.
 
The following users thanked this post: Performa01, Bad_Driver, Detlev

Offline KungFuJosh

  • Super Contributor
  • ***
  • Posts: 3206
  • Country: us
  • TEAS is real.
Re: Siglent Bench DMMs SDM3065X, SDM3055 and SDM3045X
« Reply #2001 on: December 01, 2024, 01:36:27 am »
Don't waste time trying to reverse engineer this upgrade, it can't be done. The standard SDM3065X doesn't have the interface components installed which is what makes it a factory only option selected when you purchase it.

It probably can be done. Not having a few minor parts and a mount isn't an issue if you have an SC model to reference what parts are needed. I think that would be the easy part of making the upgrade. The card itself, the limitations of the firmware/interface, and the switching scheme might be slightly trickier than my skills, but I'm sure somebody could figure that out.

I won't likely spend any time on it now that I have a Keithley on the way with the specs I need.

Thanks,
Josh
"Right now I’m having amnesia and déjà vu at the same time. I think I’ve forgotten this before." - Steven Wright
 

Offline KungFuJosh

  • Super Contributor
  • ***
  • Posts: 3206
  • Country: us
  • TEAS is real.
Re: Siglent Bench DMMs SDM3065X, SDM3055 and SDM3045X
« Reply #2002 on: December 03, 2024, 03:42:25 am »
Here's a 3-hour test comparing the DAQ6510 (same analog board as DMM6500) and my SDM3065X. Both had hours of warmup time. Both were set to 10PLC. Everything I could set the same, I did.

The Siglent appeared more stable*, but also more susceptible to environmental change. By the end of the test, my office wasn't just colder, the humidity dropped to 26%. Gross.

The DAQ was less susceptible to environmental change, but was slightly further off from the expected ref value.

Last cal for the DAQ6510 was in April 2024. SDM3065X was September 2023.

Overall, neither of them suck. 😉

Thanks,
Josh

*I found the setting, the DAQ was sampling too fast. I'll eventually do another test with the slower sample rate.

ETA: The SDM3065X is my loudest DMM. The DAQ is much quieter.
« Last Edit: December 03, 2024, 03:50:50 am by KungFuJosh »
"Right now I’m having amnesia and déjà vu at the same time. I think I’ve forgotten this before." - Steven Wright
 
The following users thanked this post: Performa01, Korchahin

Offline KungFuJosh

  • Super Contributor
  • ***
  • Posts: 3206
  • Country: us
  • TEAS is real.
Re: Siglent Bench DMMs SDM3065X, SDM3055 and SDM3045X
« Reply #2003 on: January 02, 2025, 08:23:48 pm »
Here's a weird bug on the SDM3065X:

Condition: Continuity mode with screensaver active for extended period.
Action: Press key to wake screen (not sure if specific key matters).
Result: Beeper stops working, but still display correct value on screen.
Fix: Adjust Threshold value (up or down and back to same value will work), or power cycle. Nothing else works to remedy it (including deactivating/reactivating beeper or changing volume level).

Firmware V3.01.01.12R1.

Thanks,
Josh
"Right now I’m having amnesia and déjà vu at the same time. I think I’ve forgotten this before." - Steven Wright
 

Online msemhs

  • Newbie
  • Posts: 2
  • Country: us
Re: Siglent Bench DMMs SDM3065X, SDM3055 and SDM3045X
« Reply #2004 on: Today at 05:11:02 pm »
I just got the SDM3065X-SC, and the FW loaded on it is 3.02.01.13. I can't find any info on their site.  Has anyone seen any release notes for this?  The latest one Siglent has on their site is V3.01.01.12R1
 


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf