I've newly acquired a DP832A power supply. After watching Daves video, I was curious about the rampup time on the voltage with current limit set low.
Doing what Dave did - set voltage to 32V and current to 1mA, I compared CH1 and CH2 ramp up times from 0V to 32V...
CH1 takes < 5 seconds
CH2 takes 17 seconds
The 17 second time seems to agree with what I was seeing in the video.
The large discrepancy in ramp up times between CH1 and CH2 doesn't seem right to me.
Coincidentally, I am also unable to calibrate CH1 VADC (output voltage reading) to be within the ballpark of spec. Although I was foolish enough to try the calibration using a Fluke 87V, I am able to get the calibration on CH2 to within at least a few hundred mV. Of course, this is still well out of spec., and I guess expected given I'm dong the cal with my 87V, but the difference in the results between CH1 and CH2 is concerning.
So to my eyes, there seems to be an issue with CH1 on this power supply.
Any thoughts on this from anyone? Much appreciated.