Products > Test Equipment
Rigol DP1116A
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London Lad:
Has ant one done a tear-down on the Rigol DP1116A or even just looked inside ?

I'm interested to see the build quality
georges80:
I own one but haven't opened it up.

What's it worth to you for some pictures eh?

:)

cheers,
george.
georges80:
Ok, in the spirit of the forum I opened up my dp1116a and took some pictures.

Construction is quite good and it looks like wiring has been well soldered and heatshrink/wrap applied to appropriate areas. Certainly nothing scary to see and I won't be keeping a fire extinguisher aimed at it :)

More pics in the next post.

cheers,
george.
georges80:
ok, few more pictures.

I do like the front panel connections, hefty connectors, well flowed solder and you can see the small RC network they've soldered in between the output connector and sense connector.

The heatsinks on the top main board and the base board are all oriented to catch the fan air flow at the rear of the case, so should be good from a thermal perspective.

It's a reasonably spendy power supply, but given all the stuff under the skin, there's quite a bit of stuff that your $$ are paying for.

I've been pleased with the supply so far, have been using it for a few weeks now.

My #1 (and presently only) complaint is that the display update is woefully slow compared to what I'm use to from my HP supplies and even a few cheapie units. It appears that the entire display engine operates on a 1 second ticker, so depending on where an event occurs relative to that 1 second tick, it can take up to 1 second to see a load change.

I use the supply primarily for test (and less so for development), so when I apply power to a board under test, I have to wait upwards of 1 second to see the actual current flow on the display. Doesn't seem like much, but when you're testing 20 - 50 boards you have to wait for each one versus a quick connect and move on to the next (pogo pin test jig).

I've mentioned this to a Rigol USA app engineer at designcon in Santa Clara a few weeks back, but not holding my breath for any firmware update.

I made a quick video to demonstrate the response lag to show them.



cheers,
george.
London Lad:
Thanks for the pics and vid George, that's exactly what I wanted to see.

I want to 'thin the heard' of power supplies and I'm tossing up between this Rigol and an HP E3632A

Out of interest do the 'analogue style' meters on the Rigol update at the same rate?
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