Author Topic: EEVblog #868 - Keysight U1282A Multimeter Torture Test  (Read 35509 times)

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Offline EEVblog

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EEVblog #868 - Keysight U1282A Multimeter Torture Test
« on: April 09, 2016, 10:55:16 am »
Dave & Friends destroy a Keysight U1282A Multimeter.
Is it really IP67 rated & can withstand a 3m drop?
Only one way to find out, take it canyoning, then drop it, throw it from a moving car, run over it, and then drop it some more until it breaks!

http://www.wondrous.com.au/
Kate's video of the trip:

Fluke 28II Torture Testing:

 

Online Monkeh

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Re: EEVblog #868 - Keysight U1282A Multimeter Torture Test
« Reply #1 on: April 09, 2016, 11:12:20 am »
Somewhere in the debris will be the plastic base of the crystal. The through-hole and surface mount packages are identical, possibly even down to the leads, they just add a base and form the leads.

As for the piezo, the plastic gets really brittle when rapidly melted and cooled like that, so it's not really a huge surprise - don't forget the weight of the leads as well.
 

Offline Taucher

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Re: EEVblog #868 - Keysight U1282A Multimeter Torture Test
« Reply #2 on: April 09, 2016, 12:05:03 pm »
Somehow my heart really bleeds seeing perfectly working tech getting destoyed... just remember how we used to feel as teens - saving money to buy some basic equip ... and now there's that video with a guy just pointlessly destroying a new, working piece of gear for fun (with laughter) while you'd (in his place) really have loved to own, use that equip... and it isn't even made clear if that's a sponsored destruction so it would at least have the purpose of funding the channel.

Also it can't even be called a gain for science as the failure-modes were just briefly investigated (and non-repeatable).
For example: did the rangeswitch or the buttons leak water after the canyon? ... I must have missed that part.

IMHO that vid is none to be proud of.

 :'( :--

Maybe it's time for some real EE-stuff (like designing something useful) again?


PS/OT: I was even more disgusted by the TI "viral" video "will it BBQ" - buring a scope... why... just why... please show me something cool, not something any stupid kid with a matchbox could so. YT is aready overfilled with brain-dead content (ok, that's also attracting millions of watching zombies)... please help to keep a few corners zombie-free.
 
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Online Monkeh

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Re: EEVblog #868 - Keysight U1282A Multimeter Torture Test
« Reply #3 on: April 09, 2016, 12:07:01 pm »
I seem to recall the meter being given to Dave for purposes of testing. Destructive testing.

How do you think they test whether they're waterproof and drop resistant? By pretending to smash them?
 

Offline Muttley Snickers

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Re: EEVblog #868 - Keysight U1282A Multimeter Torture Test
« Reply #4 on: April 09, 2016, 12:37:28 pm »
Thank You..... :-+

It looks to be a pretty dam good meter, if I may ask what are Keysight like for spare parts on their equipment ?.
 

Online joeqsmith

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Re: EEVblog #868 - Keysight U1282A Multimeter Torture Test
« Reply #5 on: April 09, 2016, 02:05:41 pm »
Looks like there may still be a few useful parts on it.   
How electrically robust is your meter?? https://www.youtube.com/channel/UCsK99WXk9VhcghnAauTBsbg
 

Offline Muttley Snickers

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Re: EEVblog #868 - Keysight U1282A Multimeter Torture Test
« Reply #6 on: April 09, 2016, 02:13:25 pm »
Looks like there may still be a few useful parts on it.

I was thinking a similar thing but more along the lines of a replacement LCD and then chuck it all in a box to create a Mongrel Meter for the bench, Dave would know best and whether it is salvageable or not or if it has already been recycled and is all too late, a redemption by resurrection would not only be a great project but may also make a very nice meter, I'd have a crack at this in a heartbeat given the opportunity.

I have noticed in some of the Youtube comments that people are displeased seeing equipment of this calibre destroyed and as somebody who regularly works at height I do see their point as we are compelled to tether tools and equipment more so if there is a risk to others, we also prefer to use the good meters at bench height and the shitty ones everywhere else so if they fall or grow legs then there is no great loss, perhaps it was meant to be more of a true comparison with what the Fluke had achieved and to do any less would have generated the associated negative comments, he can't win either way so even-stevens or nothing at all.
« Last Edit: April 09, 2016, 07:34:28 pm by Muttley Snickers »
 

Offline FrankT

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Re: EEVblog #868 - Keysight U1282A Multimeter Torture Test
« Reply #7 on: April 09, 2016, 02:50:19 pm »
Are you going to box it up and return it?

 

Offline charlespax

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Re: EEVblog #868 - Keysight U1282A Multimeter Torture Test
« Reply #8 on: April 09, 2016, 03:34:24 pm »
Dave, if SMD crystals are made the same way SMD electrolytic caps are made, then yes; it is a converted through hole part. I visited an SMD electrolytic capacitor factory and was amazed to find all the caps start as through hole parts. The leads are then stamped, bent and trimmed. Here's some pictures.

In the attached image you can see the leads of a through hole part being formed by a turret tool, which bends stamps and cuts the leads.
 

Offline RobertoLG

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Re: EEVblog #868 - Keysight U1282A Multimeter Torture Test
« Reply #9 on: April 09, 2016, 03:51:38 pm »
from my perspective, it really sux to se a good meter destroyed like that, but it's not Dave's fault if he got asked to do the test, so...
 

Offline Barny

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Re: EEVblog #868 - Keysight U1282A Multimeter Torture Test
« Reply #10 on: April 09, 2016, 03:52:59 pm »
Somehow my heart really bleeds seeing perfectly working tech getting destoyed... just remember how we used to feel as teens - saving money to buy some basic equip ... and now there's that video with a guy just pointlessly destroying a new, working piece of gear for fun (with laughter) while you'd (in his place) really have loved to own, use that equip... and it isn't even made clear if that's a sponsored destruction so it would at least have the purpose of funding the channel.


They crash test cars. I used to hate to see a brand new Lamborghini  destroyed. I don't necessarily agree that it is pointless. People interested in buying a rugged (claimed) multimeter like to see some actual trial results. As to sponsored, Dave funds the channel as a result of making content people want to watch. I wouldn't be encouraging him to take direct commercial sponsorship. That would lead people to wonder if he has a conflict of interest.
This are done under controlled, repeatable conditions to ensure the most possible protection.
The only thing Dave have shown is pure vandalism.
Spacial in the second half of the movie.

Its sad to see Dave is going the mainstream way of low quality content with this video.
But it hurts me more that movies like this gets the most clicks / views.

I miss videos with fundamental / informative ee-content.
 
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Offline Barny

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Re: EEVblog #868 - Keysight U1282A Multimeter Torture Test
« Reply #11 on: April 09, 2016, 06:44:01 pm »
It's true that there are bigger problems.
And its true that it is one of the most important things to habe fun at work.

But its also true that I miss Fundermental Friday and other informative films from him.
Its the proper mixture of information & fooling around.
 

Offline German_EE

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Re: EEVblog #868 - Keysight U1282A Multimeter Torture Test
« Reply #12 on: April 09, 2016, 06:50:02 pm »
Dave, not your finest video by a long way.
Should you find yourself in a chronically leaking boat, energy devoted to changing vessels is likely to be more productive than energy devoted to patching leaks.

Warren Buffett
 

Offline EEVblog

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Re: EEVblog #868 - Keysight U1282A Multimeter Torture Test
« Reply #13 on: April 09, 2016, 06:54:35 pm »
and it isn't even made clear if that's a sponsored destruction so it would at least have the purpose of funding the channel.

It's not "sponsored", Keysight simply gave me two review meters, one to review and teardown, the other they were keen to have destruction tested just for kicks.

Quote
IMHO that vid is none to be proud of.

I don't care, it's called entertainment, and I had fun making it and that's all that matters.
If you don't like these types of videos, don't watch, or simply unsubscribe altogether.
 
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Offline EEVblog

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Re: EEVblog #868 - Keysight U1282A Multimeter Torture Test
« Reply #14 on: April 09, 2016, 06:55:33 pm »
Dave, not your finest video by a long way.

Do you have a point?
 

Offline EEVblog

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Re: EEVblog #868 - Keysight U1282A Multimeter Torture Test
« Reply #15 on: April 09, 2016, 06:58:06 pm »
Its sad to see Dave is going the mainstream way of low quality content with this video.

Melodramatic much?
I've made two multimeter destruction videos in over 1000 videos.
Hardly "going the mainstream".

Quote
But it hurts me more that movies like this gets the most clicks / views.

It won't.
 

Offline kalleboo

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Re: EEVblog #868 - Keysight U1282A Multimeter Torture Test
« Reply #16 on: April 09, 2016, 07:54:54 pm »
Small sample size but it seems like everyone complaining in here so far is German/Austrian. That famous sense of humor showing?  ;)
 

Offline SeanB

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Re: EEVblog #868 - Keysight U1282A Multimeter Torture Test
« Reply #17 on: April 09, 2016, 08:01:51 pm »
Wonder if that PTC snapped off at the solder joint, or if the leads pulled out of the board entirely.

Actually a pretty good test of real life use, the water and the dropping off a sloped roof to land on ground, the abuse of being in a tool bag as is, the falling out of a vehicle at speed when you accidentally left it on the roof finishing off a job. Driving over because the guy behind was not going to swerve in time, and hopefully did not rear end you because you slammed on the brakes at the sudden "OHCRAP" moment.

The high altitude drop test, because one day you will be up a ladder, or at a window in a building and accidentally knock it out to do the long dance to destruction.It might survive below the 5th floor....... Anybody at Agilent want to do a drop test off a taller building onto a grass area and see if this holds up as well.

Ac
 

Offline EEVblog

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Re: EEVblog #868 - Keysight U1282A Multimeter Torture Test
« Reply #18 on: April 09, 2016, 08:32:53 pm »
Wonder if that PTC snapped off at the solder joint, or if the leads pulled out of the board entirely.

A through hole solder joint would be orders of magnitude stronger than a component lead.
The PTC simply sheared off under it's own weight.

Quote
The high altitude drop test, because one day you will be up a ladder, or at a window in a building and accidentally knock it out to do the long dance to destruction.It might survive below the 5th floor....... Anybody at Agilent want to do a drop test off a taller building onto a grass area and see if this holds up as well.

Grass would absorb a lot of energy.
G force is directly related to the stopping distance vs time. Concrete = really really short stopping distance. Grass and dirt ground etc will have at least a few mm of give in it. So G forces will be several orders lower.
 

Offline EEVblog

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Re: EEVblog #868 - Keysight U1282A Multimeter Torture Test
« Reply #19 on: April 09, 2016, 08:33:34 pm »
When the Americans wake up you might get complaints that he didn't shoot it.

It's almost guaranteed there will be a comment about that  ;D
 
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Offline Barny

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Re: EEVblog #868 - Keysight U1282A Multimeter Torture Test
« Reply #20 on: April 09, 2016, 08:43:13 pm »
Small sample size but it seems like everyone complaining in here so far is German/Austrian. That famous sense of humor showing?  ;)
I think this this has something todo with the mentality: "Why should I throw it away? It's still working (somehow)"

By the way: Vandalism isnt funny. And most Germans have a very "special" sense of humor.
 

Offline EEVblog

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Re: EEVblog #868 - Keysight U1282A Multimeter Torture Test
« Reply #21 on: April 09, 2016, 08:53:14 pm »
By the way: Vandalism isnt funny.

It's not "vandalism". Keysight specifically gave me the meter in order to have some fun destroying it.
 

Offline SeanB

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Re: EEVblog #868 - Keysight U1282A Multimeter Torture Test
« Reply #22 on: April 09, 2016, 09:17:43 pm »
I do not think I have a single meter that would survive any of those tests and still be at any level or even capable of functioning after even part of that testing. Most, if not all, are not waterproof to the level of that Agilent, and I think most would disintegrate into pieces at the 3m drop testing stage. Impressive that it did survive the snubbed fall onto concrete at way above the 3m velocity, with only deformation of the PCB and case.  I think those high falls were what took the Caddock network off the soldered pins, and that network then snapped the PTC off the board, as it was directly below. Then the next series dinged the resistors as both went into the case area. Brass resonator popped off likely in the wall impact series, or on the 30m drop test ( did noone notice Dave reuse the footage of the first drop in the second where it went caseless?) when it hit face first, which would have provided enough G force to pull the resonator out of the plastic, the bending being evident. The leads were sheared off by the wall impacts, and the crystal probably went at the same time. Never saw the little plastic spacer they have under the crystal, probably fell out the case, and the crystal was crushed by the board flexing, either pre separation or likely afterwards in a corner of the case.

BTW Dave this was a good watch, especially at the amount of work you had to do to destroy this meter. Can you just do the drop test again using the regular 830 meter series, you might need a few to get past the 10m drop test part, and the car series they might pass ( one in a hundred that lands base first and skids along the tar) but I doubt they will pass the drive test, even if you use a Tata or a Hyundai A10 and drop tyre pressure to 1 bar ( basically flat tyre) for this.
 

Offline WackyGerman

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Re: EEVblog #868 - Keysight U1282A Multimeter Torture Test
« Reply #23 on: April 09, 2016, 09:19:47 pm »
Amazing build quality of the meter  :-+
A drop test of 30 m would be more fun with a CRO  :-DD
 

Offline PChi

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Re: EEVblog #868 - Keysight U1282A Multimeter Torture Test
« Reply #24 on: April 09, 2016, 09:52:24 pm »
Thanks for the video Dave. It's good to see independent verification of the waterproofing and drop test rating.
True Dave's video is partly entertainment but what's wrong with that?

Industry drop testing is done under controlled test conditions for repeatability. The disadvantage is that it can't test all possible scenarios and can miss real world failures.

I have enjoyed doing destructive testing as long as fixing the failures is someone elses job.
 


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