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Author Topic: Keysight E36312A first impressions  (Read 267 times)

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Offline capt bullshot

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Keysight E36312A first impressions
« on: Yesterday at 02:25:28 AM »
So I've got the HPAK E36312A that I won at the "Power Your Bench" contest: https://www.eevblog.com/forum/contests/power-supply-contest!-free-e36312a/

Just arrived home, there she was. Couldn't wait to open the box. Don't turn it on, tear it apart time! OK, I only did a very basic teardown, opened the top cover and did some photos. Just enough to see the big toroidal transformer and the STM32F4 used as the main controller.

At first glance, the supply is very solid and well made. The enclosure looks and feels like good stuff. The display has a good contrast and wide enough viewing angle (sorry for the bad photos, I'll try better ones somewhen later).

BTW photos: you find them here: http://wunderkis.de/E36312A/rawpic/

Checked some output voltage values against a HP34401A - 4 digits bang on.

UI: Lots of menus to discover, basic settings like output voltage /current limit are dead simple and intuitive. Very nice: each one button for each channel on/off plus one for all together. Seperate buttons for each channel to select them for setting, numeric keypad entry - enter your desired voltage, press Enter, done!

Yes, it has a fan. Without a serious load it runs quiet.

Bootup time is okay (8 seconds from cold start, 6 from standby).

Now for the bad:
The output binding posts are in + - Earth + - + - order. IMO this is plain wrong and counterintuitive. Correct would be - + Earth - + - +
Afaik HPAK does this on all its power supplies this (wrong) way.

The supply does not have a real power switch. The button on the front is just a standby switch, turning off the display. In standby, the unit has a whopping 10W of power consumption, this is quite bad.



« Last Edit: Yesterday at 02:34:05 AM by capt bullshot »
Safety devices hinder evolution
 

Offline nctnico

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Re: Keysight E36312A first impressions
« Reply #1 on: Yesterday at 03:21:12 AM »
There is an existing thread already!
There are small lies, big lies and then there is what is on the screen of your oscilloscope.
 

Online rsjsouza

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Re: Keysight E36312A first impressions
« Reply #2 on: Yesterday at 11:30:06 PM »
I received mine yesterday as well. First impressions are in a Youtube video on my channel (in portuguese, sorry) and the overall impression was similar to yours, minus the order of the output posts (I really don't mind).
Vbe - vídeo blog eletrônico http://videos.vbeletronico.com

Oh, the "whys" of the datasheets... The information is there not to be an axiomatic truth, but instead each speck of data must be slowly inhaled while carefully performing a deep search inside oneself to find the true metaphysical sense...
 


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