But if you design it poorly like an idiot, you could get into a deal with batterizer!
@EEVblog7 жыл бұрын
Why did I think of that?!
@wapted7 жыл бұрын
didnt*?
@PlasmaHH7 жыл бұрын
Will they remember that they promised you it works down to those voltages when they revise the silicon, or will they forget about it and say "oh well, it won't work under 4.4V with that changes, but we don't have to worry since the datasheet covers only higher voltages" ?
@mosfet5007 жыл бұрын
Right, and how many meters did he check? Another meter might not work as well because of the different chips. I've run Atmel's uCs at 1.5 volts with no problems but only at very low frequencies.
@richfiles7 жыл бұрын
Man, I want the NEW multimeter!
@richfiles7 жыл бұрын
Man, using chips for things they aren't meant for... I've built robots with 74ACT245 line buffers used as _motor drivers_ for small motors like vibration motors and high efficiency precision gearmotors.
@Infiniti257 жыл бұрын
That's the first time I've heard someone explained what Delta translates to, thanks!
@Leonkungen27 жыл бұрын
Altough you took the time to ensure that (most) parameters seem to behave well outside the chip spec, another approach would be to design a small effective boost converter that effectively removes the battery voltage dependancy (perhaps operational down to 2V or whatever your figure would be). You want it to be highly efficient however, as it could lower the service life of the multimeter :-) (dont want to make another batteriser, eh?!)
@uK8cvPAq7 жыл бұрын
4:55 Freudian slip?
@RyanVasquez60897 жыл бұрын
LOL
@userPrehistoricman7 жыл бұрын
I must be maturing. I thought of 7.5 inch displays when he said that.
@BenjaminEsposti7 жыл бұрын
Prehistoricman Ahahahah, I get your vibe ... Yay! I'm a big boy now! :D
@2dfx7 жыл бұрын
7.5" Dave
@KostadinIVKostadinov7 жыл бұрын
This reminds me of me using Current Transducers below their recommended voltage. Glad to know I am not the only one :D
@timnaami23077 жыл бұрын
Why are there so few solar powered meters? I'm thinking a solar panel, charge pump, and multi-farad capacitor array.
@tomvleeuwen7 жыл бұрын
If I would have to make the call, I'd like to know at what voltage the chip doesn't work within specifications anymore. If that would be about 3,55v or so, you can bet your bottom dollar that there will be instances where it won't work correctly at 3,6v either. But if it works correctly down to say 3,3v *at a few instances*, you can have much more confidence that all meters will work within spec.
@dmanhattan17 жыл бұрын
I would like to see this meter with back light buttons and double injected front half of case so the markings around the dial would also light up.
@vgamesx17 жыл бұрын
3.6V is also a really good dropout point because it just barely puts it in the range of lithium batteries thus making it perfect for hacking, not that DMMs usually need it but I generally prefer lithium over other batteries.
@EEVblog7 жыл бұрын
It would be more like 3.8V to account for dropout voltage and a bit of margin.
@Chris_miller1927 жыл бұрын
I suppose AD could change something in the future that affects the low voltage performance. They probably wouldn't test for it or tell you If you're operating outside the data sheet specification. I guess you have to repeat these tests regularly?
@Brutaltronics7 жыл бұрын
most ICs I've used worked reasonably well outside spec voltage and frequency, but then again, I don't do much analog stuff
@matushorvath7 жыл бұрын
Very different from what I expected. Cause I expected "operating chips outside their specs" will be a video about releasing magic smoke. :D
@FennecTECH7 жыл бұрын
High voltage dropouts are good you just stick the batteries in your remote
@zvpunry19717 жыл бұрын
And after the remote is dead you put the battery in a wall clock for some years... ;)
@8BitParadise7 жыл бұрын
hehe
@rasimbot7 жыл бұрын
What are the traps for old players?
@BenjaminEsposti7 жыл бұрын
Pretty much the same as the new players. We're all human, let's not discriminate now! X"DDD
@38911bytefree7 жыл бұрын
It comes with four batterizer sleves !!!!!
@TheExileFox7 жыл бұрын
7,5 inch multimeter? 4:54 - Sounds great :D
@bbreeuwer45777 жыл бұрын
And now do the same tests (with the low voltage) on the edge of the (permissible) temperature specs taken manufacturer errors into account.
@dynorat12577 жыл бұрын
I think you like doing these type of videos great job love it
@KeanM7 жыл бұрын
If you hadn't got some confirmation from AD then you'd really want to be testing with more than one sample
@rikvdmark7 жыл бұрын
Nice! Eagerly awaiting the release of the new DMM :)
@DoRC7 жыл бұрын
What happened to the second big hrc fuse?
@samgab7 жыл бұрын
Thanks Dave, interesting stuff. Any chance you might also do a video on the 50,000 count DMM IC chip used in the 121GW? Like the Hycon HY3131 or Fortune FS9704B or whatever? Cheers!
@EEVblog7 жыл бұрын
That's been on my to-do list for a long time. I've done this one: kzbin.info/www/bejne/r6amiaaKaMSKiKc
@rmellersh7 жыл бұрын
Hi Dave, greetings from the UK. I may have missed something! Here you are using the GW121 but the last video I can find is the one where you are being guarded re who is gonna build it for you and you only have the 3D printed test moulding. Would you fill in the gaps please?
@EEVblog7 жыл бұрын
No gap filling. Patron's and supports have seen a lot more.
@ABaumstumpf7 жыл бұрын
Still kinda sad. how about releasing those videos to the public after like 2 months on a separate channel?
@AndreQuirion7 жыл бұрын
From what I can tell it's built by UEI instruments. You can find a link to their website on the IOS app for the multi-meter : itunes.apple.com/us/app/eevblog-121gw/id1173156224?mt=8
@fluke97 жыл бұрын
Thats wrong i guess, according to the Publisher Info on the AppStore its Kane Asia Inc. I guess they do the UEI Instruments stuff too and just made a copy and paste error copying another app they have under the same account on the App Store.
@WafflesASAP7 жыл бұрын
+EEVblog -- Perhaps you can do the frequency range response test on EEVblog2? =)
@kirkb49897 жыл бұрын
I'd love to dumpster dive your garbage if you end up tossing out the "stressed" unit!! :-P
@laernulienlaernulienlaernu89535 жыл бұрын
“I won’t show you too much” got something to hide Dave? You don’t mind showing us the all the gubbins of everyone else’s meters
@bertblankenstein37387 жыл бұрын
Any chance you tested the cold temperature performance? In winter it is not uncommon to have -20C outside here (Canada). Next winter I might try a few experiments with the BM235.
@ElectraFlarefire7 жыл бұрын
Can't believe a friend had to point out the '100 gigawatts' joke.. Any announcements for release date and price?
@PetetheSweety7 жыл бұрын
I couldn't find any Kickstarter project for the new DMM. When does it start?
@ThatOneTruckGuy7 жыл бұрын
Wait, so you have your own brand of multimeters? because the brand of that meter is eevblog.
@captiveimage7 жыл бұрын
New DMM... Want one!
@SirDrinksAlot697 жыл бұрын
Can't give the Batterizer an excuse to use an EEVBlog product in their marketing!
@gandalf872647 жыл бұрын
Hi Dave, l like that little meter. When do you plan on putting it on the market? What would the guesstimated price be?
@infango7 жыл бұрын
c'mon Dave every video from you is an interesting video :)
@pvc9887 жыл бұрын
At the end of the video something weird is showing on the scope. Is it still connected to the output of the LDO regulator?
@doctorazizli7 жыл бұрын
Dave, where we can get this new 121GW multimeter? Drop us a link...
@loz119687 жыл бұрын
Liking the new meter Dave when's it going to be available?
@thefatmoop7 жыл бұрын
Was that a wifi or bluetooth module that i saw? And a backup battery? 4:19
@UberAlphaSirus7 жыл бұрын
my fluke 89 is a battery slag. tells me lies at 1.2 volts then falls asleep. nimh and nicads is a no no
@masterofeverything64687 жыл бұрын
@EEVblog When are you thinking it will be available to buy?
@southDutchMan7 жыл бұрын
Do I spot a wireless module in there?
@miscellaneousstuff63467 жыл бұрын
Hello world!
@brplatz7 жыл бұрын
Any HALT/HASS performed on these?
@electronicsNmore7 жыл бұрын
As usual, great video. :-)
@Hunter_Bidens_Crackpipe_3 жыл бұрын
Just use a batterizer
@matutolaYT7 жыл бұрын
if that top right number is the temperature, how can it measure way less then your "thermal chamber" ??
@RWoody19957 жыл бұрын
No thermal probe connected to the multimeter so the number it's displaying won't be accurate
@UberAlphaSirus7 жыл бұрын
19:25 , is the rigol scope on top of the stack tracing your voice? I was hoping you would shut up long enough to confirm it.
@peterfixit72217 жыл бұрын
how does this meter compare to the same price fluke?
@tohopes7 жыл бұрын
build a meter using 5V bipolar chips.
@Zagroseckt7 жыл бұрын
i really want a talking meter :p or atleast one with a rs232 serial output
@stargazer76447 жыл бұрын
The fluke 87 has a mode where it will output data ultrasonically via the internal beeper.
@JuanHerrero7 жыл бұрын
You could rig a -PC with a webcam- smartphone to do character recognition on the screen and read it out. Also maybe snoop on the data lines of the LCD with an arduino, or some other microcontroller. Both are nice projects.
@userPrehistoricman7 жыл бұрын
Multimeter AI. That's the future. Google search for your circuit board.
@matejzeman77657 жыл бұрын
hey ! :) Where can I get EEVblog multimeters ? :) I dont have much money to spend, but I would love to have one ! :) Thanks. :)
@michaelhofmann50917 жыл бұрын
how much does that nice keysight cost :)?
@davefletch1007 жыл бұрын
Love Dave's videos, but he can't half talk. I would hate to sit next to him on a long haul flight!
@TheXSairam7 жыл бұрын
I dont know, but the app for the 121gw looks little bit 90s themed with words wordart title. lol. Are there any infomation about that 121gw would be pretty interessting?!
@EEVblog7 жыл бұрын
It's just an app to test basic functionality
@TheXSairam7 жыл бұрын
Ok. Are there any videos about the development about this? I just found the sla printed case video. Or maybe an eta on releasing it?
@TheXSairam7 жыл бұрын
ah nvm you already answered it in other comment.
@ReneSchickbauer7 жыл бұрын
Will you sell that Multimeter in Europe? I really want one of those!
@EEVblog7 жыл бұрын
Yes, just order from my store, or Amazon.
@alch3myau7 жыл бұрын
Going down? Inches? ... Few Freudian slips in this video huh...
@howlingwolven7 жыл бұрын
Hey, ya think a batterizer could... Nawh, not gonna go there.
@shakaibsafvi977 жыл бұрын
are you doing this testing for a company or is it just for EEVBLOG?
@ApostropheShy7 жыл бұрын
121 Gigawatts
@timlipinski25717 жыл бұрын
Is this a new MultiMeter and can you buy it with the Gold uCurrent ? Also hope the case is in Blue again. Thank you for the video ! tjl
@RWoody19957 жыл бұрын
by the looks of it having "low burden" on the current jacks he may have effectively built a uCurrent into the meter itself :D
@SaNjA26597 жыл бұрын
Always wanted to ask, what's the point of getting this new multimeter designed. How is it going to be special when compared to readily available products? (and from what I know, you don't even design it yourself but outsource the work to some Chinese company)(otherwise having it designed entirely by you would make it special enough IMO) I can understand the old EEVblog branded Brymen being a neat merchandise item for the channel, but what about this new one? Sounds like too much trouble for a piece of merch.
@EEVblog7 жыл бұрын
It's fun. And it will have features most other meters won't.
@SaNjA26597 жыл бұрын
Fair enough. Especially if you combine those with affordable price tag *wink*
@userPrehistoricman7 жыл бұрын
Calling the 121GW merch??? I'm surprised Dave doesn't ban your ass. In a previous video he's shown the high voltage continuity mode, and you can clearly see 'low burden' over the amps jacks. He's told us in this video that it has that new RMS chip as well.
@crimsun71867 жыл бұрын
You shouldn't, as Dave is not (hopefully) that kind of "safe space" KZbinr.
@joaquins907 жыл бұрын
Why??? Smack a batterizer inside! LOL!
@berndreiner71597 жыл бұрын
omg.... 🙈🙈🙈 you should take a lesson by Mr. Carlsons Lab here on youtube...
@EEVblog7 жыл бұрын
I don't get it?
@ToTheGAMES7 жыл бұрын
Why's that?
@williamsquires30707 жыл бұрын
Sometimes the manufacturers don't like it when you reverse engineer their marketing wank.
@AnujArya_Curious7 жыл бұрын
Poor bm 235 meter in that chamber for nothing
@laharl2k7 жыл бұрын
looks nice as a secundary meter. wish i could buy one to have a second rms meter. so far i only have my scope and a sanwa pc7000 as my refferences and a 30 bucks meter for non important measurements. (and of course 5 disposable $1 "things" from china for when i dont actually care if its 10V or 100V) Dave, have you thought of making a rebranded version of the 50,000 count brymen model? my sanwa is basically that with a nicer look so maybe you could have your own :p.
@Drew-Dastardly7 жыл бұрын
360p? I guess I am second... Will wait for proper HD content and not bother with "first"
@thoughtyness7 жыл бұрын
It's already 1080p. You posted that 2 minutes ago, meaning you are lying.
@Drew-Dastardly7 жыл бұрын
Indeed. But I am a liar apparently? I have to admit I am astounded at the speed youtube can re-encode videos. When I try and convert a homemade vid to .webm (on my home PC) it takes hours!
@nessotrin7 жыл бұрын
Drew Dastardly That's called "datacenters", put a few thousands of computers in a fully water-cooled building and you will be able to do that too ! ... Ouch that power bill x)
@WafflesASAP7 жыл бұрын
+Thoughtyness -- Why do you think the dude is lying? I don't know how often you upload videos to KZbin (nor if any videos you have uploaded were shot in 1080p+), but YT is scary fast about encoding the higher-quality versions of these videos. KZbin posts the vids at the lowest qualities first because they take less time to encode than the higher quality versions (which makes sense), but the higher qualities become available within 2-10 minutes after most of these videos are posted because they're being encoded on machines that probably feature multiple octo-core Xeons (per MoBo) which by themselves are damned quick at encoding, but when you factor in that Google's damned good at getting every ounce of efficiency out of their hardware (there's a fascinating documentary on KZbin specifically re: KZbin's hardware and data centers that goes into a little bit behind the scenes re: the process of getting a video on the web and to the user from the time the uploader makes the initial "upload" click to the time the user watches the last second of the video at its highest quality -- I'll see if I can find it and post the link for you!), but their servers run in parallel, sharing the encoding load. There might have been five separate servers that each handled the encoding of one of the quality settings for this video -- it all depends on what the overall load was like at the time of the upload request. If Google's setup determined that the most efficient way to get this thing encoded would be to share the load among several pieces of hardware (or even virtual instances) so that each would be encoding concurrently, that's what they'd do. Aside from the power of the CPU units on their servers, I'd imagine the amount of raw graphics processing power these machines have (I'm sure that if they're not running their own proprietary GPU setups [which wouldn't surprise me], they're potentially running many enterprise-level GPU units from companies like AMD and NVidia in parallel. For tasks like video encoding, even consumer-level GPUs scale pretty well!) I definitely don't think the guy was lying, personally.