Hi,
I smoked both 30V Channels of my DP382. I needed more than 60V to anodize some titanium, so I connected both channels in series with yet another power supply. But dumb me didn't check the current limit on the other one, and pulled to much through the Rigol.
The big SR360 Diodes on both channels were fried. Afer replacing them, everything seemed fine again. Current and voltage limits are working correctly, once shorted out. But I get sparks on the terminals of channel 2, when I short them out.
Any suggestions?