DMMCheck Plus Multimeter Reference(and other References) - Experiences..

[dmmguy]

Before I hit the buy button, what are your thoughts ?

Have you seen these?

https://www.aliexpress.com/item/1005002190676191.html
https://www.aliexpress.com/item/1005004219629979.html
https://www.aliexpress.com/item/1005004221641169.html

(random examples)

Those random examples are all trash. I bought them (thankfully they're inexpensive trash 😉). Most of them don't come with any reference values written. NONE of them come with any form of certification for the values written. The one unit I received that had values written, was mostly bs. I think 3 out of all the written numbers were accurate (checked across multiple meters with higher digit counts than the reference numbers).

The only value for any devices like these are if you know they're measured/calibrated from a reliable source.

I am selling them with the correct values... just in case:

https://www.ebay.ca/itm/155763974742

[mwb1100]

Any recommendations for really good "state of the art" test leads/clips ?
Except for the set from Probemaster I have found nothing...

... My next favorite have been the Brymen leads.

The Brymen silicone leads are great and a great value - 10 EUR (excl VAT) from welectron: Brymen BL21S2-T4SC Silicone Test Leads

Better than Fluke's TL71's in my opinion.

[Martin72]

Hi,

First and foremost, I'm looking for solid taps to safely contact the "turrets" on the board.
With measuring tips alone you can forget it, because you never have really safe contact.
Also, these clips are no good, as I found out(Pic).

If no other ideas come, I will probably buy the "big" Probemaster set from Welectron.

[KungFuJosh]

I have a couple of those sets, they're great. I don't know what welectron carries, but here you can order individual accessories directly from PM. There are certain things I needed a few extras of.

[Shonky]

I do wish that particular board was built for a more practical battery, such as the A23 12V battery the purple board has. .... My favorite among those AD584 variants is the one with the purple board, as it has a practical battery, the option to use a DC plug, and includes reference resistor measurements also. However now that I have a DMMCheckPlus rev6 on order with all options, these will be relegated to backup or consensus/sanity check purposes.

I also have the purple AD584LH from the same AliExpress seller link. I have two HP34401A with both unknown calibration history. One required a 5V supply electrolytic to be replaced when I got it. However both units read within about 0.0005% of each other. Compared with supplied cal (hand written not the common printout supplied with others, but no date) they both read 0.01% to 0.025% high. Not miles apart sure but noticeable having the two HPs agreeing to the last 5 counts or so out of 6 digits.

[iMo]

With your 34401A I would rather indicate diffs in ppm.. Percentages such small are hard to process.. 

[Martin72]

I have a couple of those sets, they're great. I don't know what welectron carries, but here you can order individual accessories directly from PM. There are certain things I needed a few extras of.

Now I´ve bought the "smaller" set:

https://www.welectron.com/Probe-Master-8043SK-Softie-Test-Lead-Master-Kit

[KungFuJosh]

Now I´ve bought the "smaller" set:

https://www.welectron.com/Probe-Master-8043SK-Softie-Test-Lead-Master-Kit

Nice. I love the tiny little grabber clips in the top right corner of that photo. I use them with my DMM and scope. They're great for grabbing tiny legs on chips and stuff like that. I was even able to use them on SMD stuff like an LTC6090.

[Martin72]

Arrived, looks very good...
One of the two bigger hooks (red) is very hard to screw on the tip - wrote to welectron, maybe I get a spare.

[Dr. Frank]

Hi,

First and foremost, I'm looking for solid taps to safely contact the "turrets" on the board.
With measuring tips alone you can forget it, because you never have really safe contact.
Also, these clips are no good, as I found out(Pic).

If no other ideas come, I will probably buy the "big" Probemaster set from Welectron.

Well , the old KLEPS = Klemm - Prüf - Spitze, from the good old Hirschmann. Got still a lot of the old ones.

[OneGeekGuy]

That probe kit looks really good, I might order one, I have few "low" cost and they are okish, but the quality is not the best, and the price is not high.

I ordered two references from Aliexpres one with the more common battery (The purple one) and the other the orange one. I would like to play a bit with them, I have Keysight 34465A on hand so I would like to measure them a bit precisely and semi long term and later on check with few multimeters I have at home just as said....for fun more than anything.

[Martin72]

It has really good quality, everything...

[Veteran68]

Yes, ProbeMasters are great, and the 8000 series "Softies" feel fantastic in the hand. A bit bulky for portable use, but great at the bench. And they're really not that expensive although I see they have gone up a bit since I last ordered a set.

If you're into really fine SMD and high density QFP work, I can highly recommend their spring loaded needle tip probes. Same body and construction as the standard 8000 series "softies" but with pogo-pin like spring loaded needle tips that you can get in four different point configurations.