| Products > Test Equipment |
| Korad KA3005P power supply: UI changes |
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| Pfriemler:
--- Quote from: IvanBayan on May 31, 2023, 12:16:19 am ---It's turned out that one more revision or similar version exist, it's called KKG305P. --- End quote --- Please remember the thread title: UI changes in KA3005P. 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. --- Quote from: ebastler on May 31, 2023, 05:37:20 am ---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"? --- End quote --- With my (new) KA3005P, M1..M4 (no M5, LED shows the LOCK button status), no settings are changed by accident, only by a long button pressure. M1 is recalled during power up and should be programmed with safe values. I love this behavior. |
| ddrl46:
It appears that another variant has shown up, the KA3005PS / KA3005PEA. |
| Pfriemler:
Both are listet @ Eleshop.eu. Low noise fan, better amps resolution, PEA with external on/off and sense. Main specs same as KA3005P. Maybe I am wrong and these devices are ideed new housings with basically the same power circuits. But SSR replacing the relays ... is this a good idea at all? |
| ebastler:
From a UI perspective, I am disappointed that Korad did not switch to translucent rubber buttons with the indicator LEDs back-illuminating each button. That can't be significantly more expensive than the current setup, and would make it so much more obvious which indicator maps to which function button. |
| 5U4GB:
--- Quote from: ebastler on April 12, 2021, 01:43:24 pm ---Under light load the fan is very quiet -- much less audible than my Siglent SDG2042X, which in turn is much quieter than the Rigol DS1000Z scope. When I short the outputs in the 30V/5A setting, the fan gets cranked up gradually and does become louder than the Rigol -- but I can still tell whether the Rigol fan is on or off, it does not get drowned out. --- End quote --- Just got a 3005D (not P) which is dated December 2022 and this also has the updates described here, but not the case colour change. I'll post a link to a teardown a bit later on, but one thing I noticed is that the fan only has two wires and no sense wire, so the reason why the ramp up is slow could be because the control software has no idea what speed the fan is running at and has to just gradually ramp it up and see what the HS temperature changes to. In general though the heatsink layout is pretty strange both for the original and updated heatsink, instead of the air flowing across the fins the HS is mostly blocking the air flow, which I would imagine leads to both poor performance and a lot of unnecessary noise because there's a solid block of metal a few cm from the blades. What were they thinking? |
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