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How to calibrate Siglent SPD1000X / SPD3303X / SPD3303X-E series power supplies?

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oz2cpu:
here my 35 years old justy kit powersupply

power on warm up, 5mV full scale, 1800 sec full scale

so clearly much worse, when it come to power up time :-)

oz2cpu:
short term stability

0.2mV full scale, 10 sec full scale is the best to see this..
this is my right unit SPD3303X ch1
I use the manual set low and hi, for 0.2mV full scale, this was i can compare the curve, fair

oz2cpu:
my old psu :

short term stability

0.2mV full scale, 10 sec full scale

see this is alot more stable, free from short term noise :-)

mawyatt:
Here's the GPP4323, then the SDP3303X-E (augmented to a 3303X) and a very old linear EMCO. All set to ~2V. Note the GPP (1st) and SDP (2nd) have a vertical span of 200uv on the SDM3065X, the EMCO (3rd) span is higher at 700uv and not as stable as the GPP or SDP.

Best,


Edit: Added SD (RMS) over a 5 min time span, GPP ~53uv, SPD ~31uv and EMCO ~76uv

Bad_Driver:
Wow, so much information on the last Sunday before Xmas!

I have to prepare the upcoming weekend for my three children (and to setup a new XBOX X so far) and for my very old
parents too and 4 days in business as well  :phew: And I‘m the chief of the kitchen (and the related food shopping drives)

Let‘s see what I can repeat with your settings this week.

One remark (you see my findings in the SDM-thread):
The SDM3065 settles down in a view minutes compared to my HP 34401a, I’m pretty sure that the warming up
curve comes from the SPD3303 but I will double check this.

It makes sense to use TestController again for this, more post processing capabilities and easier overlay of different measurments. I need more free time for the bench!!!!!!  |O

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