Products > Test Equipment
Korad KA3005P power supply: UI changes
ebastler:
My two KA3005P's are on firmware version 5.5, they say.
I double-checked the behavior of the permanent adjustment mode while I was at it. After a short press on LOCK, I can select current or voltage and select a digit, and then the adjustment mode will happily stay on that digit forever. (Unless I change it again via the <> buttons, of course.) The adjustable digit also keeps flashing at 1 Hz, which is a bit obtrusive but provides a clear visual reminder that the adjustment knob is active and will affect this digit.
Time for version 5.9, which combines the new memory behavior and the old permanent adjustment mode. ;) Ah well, we will most likely never get firmware upgrades for the existing units. Nevertheless, kudos to Korad for continuing to make improvements!
Pfriemler:
--- Quote from: ebastler on January 12, 2023, 06:23:01 pm ---... KA3005P's on firmware version 5.5 ... After a short press on LOCK, I can select current or voltage and select a digit, ...
The adjustable digit also keeps flashing at 1 Hz, which is a bit obtrusive but provides a clear visual reminder that the adjustment knob is active and will affect this digit.
--- End quote ---
I just took a deeper look at mine @ FW5.8: The digit remains blinking as long as the output is off. But the "instant change mode" isn't active yet (if output is off), but the dot is on, if you press [LOCK].
If output is on, the blinking stops after a few seconds.
And now:
The (now invisible) cursor remains at 100mV/10mA and 10mV/1mA. Small adjustments are still possible! Only if the cursor was on 1V/100mA or 10V/1A, it jumps back to 100mV/10mA.
The just changed digit blinks as usual and stops blinking after a few seconds.
As long as (esp. in current changing mode) a digit blinks, the display shows the "set" value, if nothing blinks, the measured value.
My post above is corrected.
With this, I am very happy. The activated "permanent adjustment mode" is more safe, the risk of (too) big steps is reduced, small adjustments are not affected.
smallfreak:
I'm curious. Are there still two different models of this PSU available or are meanwhile all of them the "plus" version with the green voltage display and a "lock" indicator instead of an M5?
Welectron lists them as separate but also lists all of them as "not available" so this does not necessarily mean that the "non plus" versions will ever become available again. Everyone else still shows the "all red/M5 LED" images but I doubt that Korad would keep two nearly identical models in production.
IvanBayan:
It's turned out that one more revision or similar version exist, it's called KKG305P.
The main announced differences: it has wattage display, solid state relays instead of regular (at least I can't hear clicking), external sense input, external trigger/switch input and RS487+Modbus.
I've managed to bought one. The most interesting thing that you can't find it on official Korad's web page.
I asked them via email about differences with KA300P and got the next answer "KKG305P is our KORAD product. We will put it on the website later. And KKG305P has more functions, higher performance and better quality than KA3005P."
ebastler:
Hey, and there is a "Set" button! Which hopefully means that the M1..M5 presets will only be changed (and stored) if one explicitly requests that by pressing "Set"?
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