I thought if there anyone else interested in the subject - I would post some info.
Thanks for the post sstepane. I am considering this load. It seems to be a interesting candidate in the 300W range.
If you have more information, I'd be interested.
Can you comment on the "awkward" front panel configuration?
What about the trial software? I don't see any mention of it on the GW Instek page for the load.
Also, is it quiet at low load?
Hi Laurent,
Awkward - that is a bit unusual, but nothing to worry about. Navigating config section of the unit is a little bit unusual, but it is easy to get used to it and it is not that frequently used. Another strange thing is that even in static mode there are two values, say Value A and Value B, you can set both to a different value, but switching between them is done with "shift" key and is not that obvious - only small indication of what value is in effect right now. It is totally normal for dynamic mode or transition, but still unusual for simple static. But, on the other hand - may be even handy, like two profiles...
Trial software is at the following link -
http://www.gwinstek.com/en-global/Page/Link_ViewFrom the description it does things I don't need, so I didn't even checked it out. Somehow it is not mentioned on product's page, but is compatible. Visual Basic communication turned out to be quite easy and free, so it's my software option.
Regarding its noise - it dusts fans at start. I did not put a lot of power for long time, but couple of 10 seconds 190W bursts didn't triggered its fans. On idle fan is like from Rigol DP832 PSU, may be just a bit lower.
Other than that - I don't see anymore jumping resistance all around like it was with Rigol DL3000. In 90% it's simply there with no visible actions, and my devices I test report it very close to the one I've set, so from practical/experience for some 15+ devices right now it seems to be way more robust and precise dc load than Rigol or Applent. Well, but again, it costs twice more.
If you have any questions - I'll gladly try to answer any.