Today I got my Siglent SPD3303D. I can try to do a review of it, if anyone is interested. But my German accent is terrible, so I would write an article with measurements etc. on my website, and maybe record a short video for the user interface.
My first impressions so far is a thumb sideways
I can set the voltage in 1V steps with the rotary encoder, or I can push the "fine" button, and then I can change the voltage in 0.01V steps (20 steps per full turn). No acceleration, no way to select 0.1V steps (or at least I didn't find it). But the maximum current can be changed in 0.1A or 0.01A steps. If I turn the knob too fast, steps are missed until it is actually slower than turning the knob more slowly. Well, I can live with it, because I don't change the voltage that often anyway, more often the maximum current.
Then I tried to install the software, because one of my planned applications is to control it via USB from my PC. Well, I started the setup file from the CD-ROM and got this dialog:
Turned out to be the language setting for the installer, I could select "English" in the dropdown box and the first button might mean "install", because after this the software was installed. When I tried to start the installed software, I got an error because of missing VISA32.dll. Looks like they implemented the software with LabVIEW, and tested it just on their own PC, where the library is installed. Didn't found anything mentioned about it in the manual. But I found it the library on the NI website (the runtime environment is free), so after installing it, the software worked. In the software I can change the voltage by entering a number. But I have to click the "Set" button, just the enter key doesn't change it.
A quick measurement of the power-up behavior with my scope shows no problems, and the outputs are turned off until enabled again, as with the Rigol.
BTW: When I try to change the voltage above the maximum 32V on the device, it says "Voltage settings Overspray!". English is not my native language, but this doesn't sound right