Laboratory Power Supply

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CATO
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Laboratory Power Supply

Postby CATO » Wed Nov 11, 2015 9:27 am

Hello fellow Rocketeers,

I'm after a Laboratory Power Supply, does anyone have any recommendations?


Thanking you in advance.
David.
"In thrust we trust"

AMRS 21 L3

Impulse:
2018: 7,455 Ns (46% M)
Ns 17: 5,973; 16: 34,558; 15: 35,955; 14: 6,016; 13: 10,208
PB - Gorilla N2717WC, H: 10,260', S: 1.14M

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Re: Laboratory Power Supply

Postby OverTheTop » Wed Nov 11, 2015 9:33 am

We have many of these at work:
2251946-40.jpg
2251946-40.jpg (6.95 KiB) Viewed 1625 times

http://au.element14.com/tenma/72-10480/ ... dp/2251946
At $126+GST they are good value.

I got one for home when they were on special for $118 a while back.
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Re: Laboratory Power Supply

Postby Viking » Wed Nov 11, 2015 1:25 pm

I've not used a Tenma power supply, but we have a few bits of Tenma test gear at work (Differential Thermocouple Thermometers, Multimeters etc) and though no-frills, they have worked flawlessly.
If you want more grunt(for Anodising or whatever), there are the B&K Precision bench supplies. I have used these, they look cheap and nasty but they deliver. They're also kinda pricey!
There's also the no-frills Manson brand available at Procon Technology: http://users.tpg.com.au/users/p8king/sps8041.htm
Jaycar sells a re-badged version of the Manson SPS-9400 ($330) as the Jaycar MP-3090 ($369), this is 3-15v 40A. I sold a lot of these in my 3 years there and not one came back, something that definitely can't be said for the rest of the Jaycar supplies!
There's also the Chinese RIGOL brand, which apparently aren't too bad now after a few revisions according to Dave at EEVblog.
Simon
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Re: Laboratory Power Supply

Postby rocket_troy » Wed Nov 11, 2015 2:09 pm

Viking wrote:I've not used a Tenma power supply, but we have a few bits of Tenma test gear at work (Differential Thermocouple Thermometers, Multimeters etc) and though no-frills, they have worked flawlessly.
If you want more grunt(for Anodising or whatever), there are the B&K Precision bench supplies. I have used these, they look cheap and nasty but they deliver. They're also kinda pricey!
There's also the no-frills Manson brand available at Procon Technology: http://users.tpg.com.au/users/p8king/sps8041.htm
Jaycar sells a re-badged version of the Manson SPS-9400 ($330) as the Jaycar MP-3090 ($369), this is 3-15v 40A. I sold a lot of these in my 3 years there and not one came back, something that definitely can't be said for the rest of the Jaycar supplies!
There's also the Chinese RIGOL brand, which apparently aren't too bad now after a few revisions according to Dave at EEVblog.

I have 2 of the black box flavours of these (40A) and they're pretty reliable although I did have to replace a couple of caps and a PWM Power Switch IC, but that's after many years of service. Mind you, if you're after a really consistent (as in devoid of spikes) voltage level, then perhaps these aren't the best solution. However, for 99% of applications, a small millisecond spike here and there isn't a concern.
I also have one of the white box flavours (with settable current) when Rockby's were virtually giving them away. Very nice unit, although I haven't measured it for spikes.

I also have a nice 0-13V 0-200A unit which is fantastic for promptly disintegrating screwdrivers that misbehave, but that's a little beyond your typical lab-grade level of power:)

TP
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Re: Laboratory Power Supply

Postby CATO » Thu Nov 12, 2015 1:47 pm

Thanks all...
"In thrust we trust"

AMRS 21 L3

Impulse:
2018: 7,455 Ns (46% M)
Ns 17: 5,973; 16: 34,558; 15: 35,955; 14: 6,016; 13: 10,208
PB - Gorilla N2717WC, H: 10,260', S: 1.14M

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Re: Laboratory Power Supply

Postby OverTheTop » Mon Nov 23, 2015 8:39 am

Element 14 have the supply I mentioned above on special currently (until 29JAN2015) for $100.93 + GST.

http://au.element14.com/tenma/72-10480/ ... ategoryId=
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Re: Laboratory Power Supply

Postby CATO » Mon Nov 23, 2015 10:28 am

Thanks. Order placed, free delivery for items over A$45.
"In thrust we trust"

AMRS 21 L3

Impulse:
2018: 7,455 Ns (46% M)
Ns 17: 5,973; 16: 34,558; 15: 35,955; 14: 6,016; 13: 10,208
PB - Gorilla N2717WC, H: 10,260', S: 1.14M

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Re: Laboratory Power Supply

Postby CATO » Mon Nov 23, 2015 4:14 pm

WOW.... It was delivered at 16:55 today... WOW.... :shock:
"In thrust we trust"

AMRS 21 L3

Impulse:
2018: 7,455 Ns (46% M)
Ns 17: 5,973; 16: 34,558; 15: 35,955; 14: 6,016; 13: 10,208
PB - Gorilla N2717WC, H: 10,260', S: 1.14M

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Re: Laboratory Power Supply

Postby Viking » Mon Nov 23, 2015 4:30 pm

Haha, normal for Element14.
I once placed an order at 6pm WA time(so 9pm AEDT) it was delivered before I got to work the next morning! Seemed impossible.
Only happened that once, though they are always next day if I order in the morning.
Simon
WARS #24 / AMRS #54 L2

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Re: Laboratory Power Supply

Postby OverTheTop » Mon Nov 23, 2015 5:06 pm

WOW.... It was delivered at 16:55 today... WOW.... :shock:

Now you need to leave it on your desk hooked up to something so somebody doesn't borrow it when you are not looking. That's what I have to do at work to stop mine going walking...
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Re: Laboratory Power Supply

Postby jase » Mon Nov 23, 2015 8:04 pm

I'd like to hear more about "disintegrating screwdrivers" :twisted:
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Re: Laboratory Power Supply

Postby Lamp » Tue Nov 24, 2015 1:50 pm

200A will do it Jase...think high powered arc welder!
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Re: Laboratory Power Supply

Postby SpaceManMat » Tue Nov 24, 2015 5:25 pm

jase wrote:I'd like to hear more about "disintegrating screwdrivers" :twisted:


Don't try this at home kids. Pretty sure metal vapour burns are not going to be much fun.
QRS: 124
AMRS: 32 L2 RSO
Highest Altitude: 13,647 feet
Fastest Flight: Mach 1.55
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Re: Laboratory Power Supply

Postby High Impulse » Tue Nov 24, 2015 8:03 pm

Actually, speaking of disintegrating metal, I saw a you tube clip today where an arc welder and two carbon electrodes was used to melt aluminium.

https://www.youtube.com/watch?v=r6oDCbcmtWw

Looked quite interesting, although I'm not certain on how legitimate it was...
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Re: Laboratory Power Supply

Postby jase » Wed Nov 25, 2015 7:29 am

LOL - yep, did some youtubing on this one too :wink:

Love this crazy cat - nothing funnier than a mad Russian, and the subsequent translation "10,000 Wi-Fi Rooters"...

Enjoy :twisted:

Me and my rockets run on Moonshine.


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