Products > Test Equipment
Korad KA3005P power supply: UI changes
5U4GB:
--- Quote from: Pfriemler on May 31, 2023, 03:48:56 pm ---The KKG305P is a complete new and different device (even a KD3005 is not comparable to the KA3005) and it's definitely worth a new thread here.
--- End quote ---
It also seems to be practically nonexistent, Botland.de has it and that's about it, and of their range the 305P model is marked as EOL. Also from one of the very few discussions of it it essentially looks like a fixed KA/D3005 rather than a new product, e.g. the annoying adjustment-lock is removable as with newer-FW 3005s, the memory-overwrite is fixed as with newer-FW 3005s... it looks like the KKG305s are just 3005s with window dressing, so this is probably the best place to discuss them, because they seem to be just 3005s with UI fixes.
5U4GB:
--- Quote from: ebastler on April 12, 2021, 09:27:06 am ---Significant improvement: A short press of the "Lock" button enters a mode where you can adjust voltage or current via the encoder and arrow buttons without any timeout. There were many complaints about the short timeout in earlier versions. To lock and unlock the keypad, a long press on Lock is needed.
--- End quote ---
Just found where I'd seen this earlier right at the start of the thread, this change doesn't seem to have made it into the currently-shipping KA3005D yet, it still has the annoying short timeout where you keep having to press the Volt/Amp button every single time you make a change Wanted to test the power consumption and light output of a 24V LED strip at lower voltages and every 1V step required re-enabling changes again, grrr.
Pfriemler:
--- Quote from: 5U4GB on February 13, 2024, 09:46:47 am ---Just found where I'd seen this earlier right at the start of the thread, this change doesn't seem to have made it into the currently-shipping KA3005D yet...
--- End quote ---
It would not suprise me if there are still "old" versions in stock to sold as new after two years. On the other hand, we still have no other versions than the Welectron KA3005P+ series proved with the newer firmware. I couldn't believe that KORAD did some changes only for Welectron while still deliverung "old versions" to the rest of the world.
5U4GB:
The one I got was dated December 2022, 1 1/2 years after the post describing the change, so it's probably not just a supply-chain issue.
Does anyone who has a KKG-series one want to post photos of the insides? For that matter, does anyone actually have a KKG? From this Korad catalogue posted to the mikrocontroller.net forums they have a pretty confusing variety of models allegedly out there now.
littleboot:
instead of a custom temperature fan controller, I bought a PWM fan controller on Aliexpress:
Search for "12V PWM fan controller"
https://vi.aliexpress.com/item/32973504131.html
Prices fluctuate a lot, the one I ordered was €2.79 delivered
Operating instruction of this thing are very badly described, I found this video explaining how to change the temperate and fan settings:
and a thin 80mm fan:
https://vi.aliexpress.com/item/1005005952005094.html
NO-8010-PWM-BLACK
€4.75 delivered
Thin was not required but I wanted a branded fan (assuminh it would be better, more silent).
Everything works perfectly, the lab supply is silent now! :scared:
I forgot to add A additional capacitor on the 12V fan supply but, I have not checked the ripple.... just thought of it while typing this post :palm: (maybe I open it up again but seems to work perfectly so I think I will leave it like this)
- Put the thermristor of the PWM fan controller into the hole next to the NTC on the board.
- Stored the original fan inside the supply, If I ever need it
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