Author Topic: rigol dp832 acceptable precision  (Read 373 times)

0 Members and 1 Guest are viewing this topic.

Offline Redeeman

  • Contributor
  • Posts: 27
rigol dp832 acceptable precision
« on: October 07, 2019, 06:33:33 pm »
Hello.

Bought a DP832, and straight out the box, it read 0.01v on channel 1, 0.06v on channel 2, 0.00v on channel 3.

I thought this 0.06v atleast on channel 2 was a bit high off. I suspect even off spec, but certainly if one were to buy the high accuracy option. I tried riglol'ing to unlock high accuracy, but i couldnt get it to work, so I just went straight to the hack to "convert" it to a DP832A. Worked great, easily.

now it says 0.005v on channel 1, 0.016v on channel 2, and 0.000v on channel 3.

thats a bit strange, the rounding has then been quite off on channel 2?

this offset seems to follow in the readout no matter where in the 0-32v range I set.

What are your thoughts on this?
 

Offline Grandchuck

  • Regular Contributor
  • *
  • Posts: 166
  • Country: us
Re: rigol dp832 acceptable precision
« Reply #1 on: October 07, 2019, 06:59:28 pm »
Mine (DP832 ... unhacked) gives:
On channel 1, -4 mV
On channel 2, 0.5 mV
On channel 3, 0.1 mV
 

Online maginnovision

  • Super Contributor
  • ***
  • Posts: 1794
  • Country: us
Re: rigol dp832 acceptable precision
« Reply #2 on: October 07, 2019, 07:56:48 pm »
Just calibrate it then and call it a day.

Mine (DP832 ... unhacked) gives:
On channel 1, -4 mV
On channel 2, 0.5 mV
On channel 3, 0.1 mV

How is your unhacked unit giving you microvolts for readback?
 

Offline Grandchuck

  • Regular Contributor
  • *
  • Posts: 166
  • Country: us
Re: rigol dp832 acceptable precision
« Reply #3 on: October 07, 2019, 07:58:45 pm »
The reported readings were produced using a separate DMM.
 


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf