Products > Test Equipment
HSPY Power Supply
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mikeintal:
I am trying to control this Power supply via RS232, I read the manual, seems MODBUS allright. but tried all iterations of Speed, 7/8 bit, stop bit = 1/2, big endian, small endian.
but to no avail, the power supply just sits there and being a snob. |O


I recon I can sniff the control protocol if there is anybody who can share the PC software that could control the PS via RS232?
Calvin:
Hi,

a colleage at my company obviously bought a hspy-300-03 via alibaba.
I don´t know the price but a short search showed offers around 450$.
Anyway he returns in a couiple of weeks and so did I pick it up.
When I read the printing on the cartonage I immediately knew I had a real quality device in my hands  :palm:
On opening the Minus connector fell out of the box .... cleanly broken off .... great quality struff seemingly pressed from mud.  |O
First impression ... well, ahem yes
Weird IEC-connector and even weirder adaptor without PE!
No CE sticker  ... not even the fake chinese CE.
Second impression .... the casing is not folded to perpendicular shapes, but the front is slightly tilted in the horizontal ... and it doesn´t appear to me as if its related to the broken connector.

Anyway .... I opened it up to see the innards.
Large PCB on the second floor bends easily as there are several isolation slots across  ... flimsy thing
Some inductances flying around .... mechanical construction leaves alot to desire.
Lets inspect the PE .... certainly not as it must be done ... just screwed to the IEC-connector fastening screw wo. washer and fixation et al. The lid of the casing also just relys on that 5 mashine screws will somehow make it through the laquer.  :-//
Small to almost non-existant isolation distances all over the place.  |O

When my eyes fell on the big brown caps I first was positively surprised to see the well known NipponChermicon/UnitedChemicon logo ...  well, until a closer inspection revealed that it were a case of blatant copyism .... Iron KingKong .... I almost fell from my chair LMAO  :-DD :-DD :-DD
I admit I never heard of that ... KingKong caps I ´m still giggling.  :-DD
KingKong even at the output ..... and of course bigger in value than healthy  ::)
The wiring also doesn´t look as if it could cope with teh specced 900W continuosly.
At that point I decided just to put that piece of crap back into its carton, place it aside and write a warning to my colleague rather to throw that thing into the garbage directly or at least to not switch it on, before taking it apart.


--- Quote ---So far I'ld say the power supply is worth the money though it may be wise to ckeck the isolation clearances as I did.
--- End quote ---
No, I disagree fully.
A device which is inherently unsafe, which is a possibly lethal accident waiting to happen, is certainly not worth any money at all.
Just keep off of that crap ... and best return the garbage back to it´s sender.
I´m beginning to think that dumb ol´ Trump might be right with his taxation plans against china
Taxes and customs can´t be high enough to prevent such crap beeing sold to decent countries.
Not to think of what useful could have been built from those now wasted resources.  :wtf:

regards
Calvin

KingKong ... I still can´t get it  :-DD



Lemonizer:
Hello,

I'm bringing this topic back up from the grave, as I came upon those supplies (especially those with voltage higher than 100v), I read every comments here, it seems that most like them, besides one person.

I don't really trust such a supply with an output exceeding 400w, it's already a lot I think. The 400v 1a one is the one I want.
Besides that cap, which can be replaced maybe, and some insulation problems (maybe it can be fixed too, with some tape as someone did ?) it looks quite appealing on the paper.

Is there anyone else who own it ? For this price, it's really hard to beat. The minimum I want is at least 200v, and 1amp. I can't find any offering where the price isn't skyrocketting. I need a decent stability, as I want to use it (not only for that) as a source to calibrate an electronic load, and I want my supplies to be stable at least to the 0.02% in specs. Is the noise high ? Are specs in general close to real life ?

Thanks guys !  8)

Lemon
testpoint1:
HSPY is a good power, made in Beijing, not the small factory of southern China.
Lemonizer:
Can you elaborate a bit please ? :) I don't know much about the different quality between various places in Asian countries. The only new chinese pieces I have currently is an XJW01 LCR Meter, which I quite like for the price (I wonder if I can adjust it with better resistors as references to improve accuracy), an Uniroi 30v/5a power supply (quite noisy, not really a fan, it was my first psu) and I bought recently a kp184 load, which seems to be quite nice, especially for the price.
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