Products > Test Equipment

Keysight DMM - Yay or nay?

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mawyatt:
@Traceless,

Think you have only one option, that's get both the KS and DMM and decide for yourself  ;)

I'll wager a brew that you'll end up keeping both  >:D

BTW Dr Frank is one of the very very few I always listen too, never a hint of misinformation :-+

Also, are you going to do an evaluation of the new 5200, maybe a peek inside :-DMM

The DE-5000 use a special chip set that does all the heavy lifting, and does so very well indeed as various tests have shown (ours compares very well with the TH2830, in fact so good we are preparing adapters to allow all the Tonghui fixtures to work with DE-5000).

Best

Electro Fan:
+1 for  ^ what mawyatt says ^

Traceless:

--- Quote from: mawyatt on March 05, 2022, 05:34:42 pm ---Think you have only one option, that's get both the KS and DMM and decide for yourself  ;)
I'll wager a brew that you'll end up keeping both  >:D

--- End quote ---


--- Quote from: Electro Fan on March 05, 2022, 06:24:58 pm ---+1 for  ^ what mawyatt says ^

--- End quote ---

I have to admit that thought crossed my mind for a split second, then I remembered what Mrs. Traceless would say about that:




--- Quote from: mawyatt on March 05, 2022, 05:34:42 pm ---BTW Dr Frank is one of the very very few I always listen too, never a hint of misinformation :-+

--- End quote ---

I'll keep that in mind also many thanks to Dr. Frank for being such an awesome source of information.


--- Quote from: mawyatt on March 05, 2022, 05:34:42 pm ---Also, are you going to do an evaluation of the new 5200, maybe a peek inside :-DMM

--- End quote ---

Tony was actually faster than me and did a very detailed full review including a look inside (link below). I can confirm it is a very nice unit, very good build quality, highly accurate. If you have any questions Tony didn't cover I'll gladly try to answer them to the best of my abilities.

Here is Tony's MCR 5200 sneak peek (he's going to open it about 17 minutes into the video):

exmadscientist:

--- Quote from: mawyatt on March 05, 2022, 05:34:42 pm ---Think you have only one option, that's get both the KS and DMM and decide for yourself  ;)
--- End quote ---

So we did this! Turns out both are pretty much interchangeable, so get whichever one you want. There may be minutely better specs on any given range for one meter, but they're close enough that I forgot which is which.

The 34465A is distinctly easier to take a quick measurement with. Somehow it always gets grabbed first if both meters are available on the shelf, and I think this is why.

The DMM6500's triggering system is far more powerful. You can do some really amazing things with it! Unfortunately, by the time you learn/remember how to use it, you'll probably be dead of old age. The graphing is similar. The little front and rear fuseholders are nice to have, I wish more instruments were done that way. This is objectively the "better" meter, thanks to that triggering system, but it seems to be most people's second choice.

As for faults, we've found a couple. The DMM6500 UI can crash. Not often, but it can. It doesn't always handle SCPI commands well, occasionally and repeatably barfing out weird errors it's not supposed to (and that the 34465A doesn't choke on). The 34465A, for its part, seems to have some isolation/leakage issues. But take that with a grain of salt, it was being used in a setup that seems to reliably get annoyed with even nA of leakage to earth. (We didn't try the DMM6500 there. Actually, we didn't really want to continue troubleshooting that problem at all.)

So, yeah. Get whichever one strikes your fancy, you won't regret it.

Though if you do get the 3446x, set the display background to black instead of blue... you'll thank me later.

Hydron:
How long does the 34465A take to boot btw? I was choosing between the DMM6500 and the 34461A last year, and the eternity it seemed to take the 61A to boot in videos I saw online was a factor in going for the 6500 (it was also cheaper and had more features, and I'm glad I avoided KS in the end given their horrible and possibly illegal new attitude towards supporting private customers!)

I know that you should leave a meter warmed up for best accuracy, but you mentioned "take a quick measurement with". Probably a good excuse to have something like a 34401A/34410A floating about too, that's 3 meters now :P

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