When I got my first multimeter (back when I was about 9 yo), the first thing I did was to measure the mains voltage. Happy to see the nominal 127V, I decided to measure the mains current. Yep, had to buy new tips the next day. Never thought to measure the mains resistance though! ;)
Incredible, how the fluke meter recovered. It would be interesting to see the differences in each meter teardown the applications used for input protection.
Excellent job here. You're awesome for following up on previous videos where there might be questions about certain things. Thanks for all the hard work & dedication you put into these vids! I was really hoping for some magic smoke from the Vichy. I ought to send you one of the miniature analog Wal-Mart meters they sell for about $9; I'm almost certain it wouldn't survive.
I can see Agilent now, working on a meter that not only maintains accuracy after taking mains in the ohms range, but also gives you a valid ohms reading of the parallel resistance of all the mains transformers connected to that circuit
@SampsonGizmo Because it's very likely that someone will accidentally apply voltage to the meter on the ohms or diode check function. This is a "test" of how well / if the meter will recover.
Thanks for testing the VC99, too, so I don't have to. I actually bought it after I saw your shootout, because I thought it performed very well in that. Didn't perform bad this time either IMHO (resistance measurement was spot on). It may be cheap chinese but it's not bad for the price. Had no problems with it at all in almost a year. And due to the US dollar being worth shit at the time I bought it in Euro, I'd say it was a bargain.
So THAT'S why some multimeters cost several hundred dollars (and are not a rip off). I guess they really are super awesome quality. I wonder what would happen if you used an even cheaper multimeter than the ebay one you used. One of those multimeters you can get for $5.
I would really enjoy a Fluke series test much like this one. as to see the engineering differance ' s. I have a Fluke 179 and I'm wondering if it has the same failsafe as the mighty 87v. cheers.
@hitachi088 I know that's what fuses are for. Showing how easily a fuse blows when you put several kiloamps of fault current through it is not overly exciting. It would be interesting to see how many of the cheaper meters continue to function afterwards, but not worth the possible destruction of them.
Is any one of those meters good enough that while being overloaded it actually measures the resistance of the circuit they are being overloaded on ? :-P
Dave I really like your multimeter reviews, but I never saw Mastech brand reviews, they are main go in my country, would be great if you could take a look at them, myself using MY68 :]
Dont know if this has an impact to the accurate measuring but when you sticked mains to the second Gossen meter battery signt went from 1 bar to 0 bar and when conecting to precise box again it returned you 1 bar back.
What is that gsm fix you talked about for a Fluke meter . Which meters did it affect and what did it fix in the fluke meters . I have several flukes from over the years from when I was in the NAVY on Submarines to when I worked as a electronic tech for ASI company working on Delorean radios .
@SampsonGizmo I belive that the purpose of the test is to see if the meter allows for human meter. Decent meters should be tolerant of the occasional whoops like that. But don't try it with a $10 bargain bin special as I'd expect them to go bang in some fashion. I wouldn't want to try it. :-)
I'm surprised theese can survive that, I still wouldn't try that with my meter. I allready fried one when I accidentally put a few kv through it (even tho that is way more than mains voltgae).
Why did the Vichy 99 survive the ohms overload with 240vac? I was expecting it to blow like the Fluke video with 750vac ohms overload test on the Harbor Freight $5 dmm. What's the difference with that $5 meter? I expect those expensive dmms to survive, but for the Vichy to survive... there should be at least an explanation why it survived that test to bring it up from just boys having fun blowing things up and put some science into it.
He already blew the cheap ones that fail this test in his multimeter shootout. These were the survivors, so he knew they would survive 240vac on the ohms scale.
Try this on a Brymen 869s or 257 or even your blue eevblog 235. I like brymen and these tests but cannot afford to do them myself so it is better watching you do it, lol
Fault tolerance for careless or ignorant operators is to some degree built into modern meters. This is measuring the goodness of various meters in that respect. The BK Precision meter's excellence was predictable.
@hitachi088 I know, and I was commenting on the suggestion. Maybe YOU don't like valid criticism, but others might, and this is a public forum. Don't get so worked up over someone not liking your idea.
i'm not very experienced in electronics, but would this make a difference if you would switch the probes in the mains cable? Could the phase or neutral lead make a difference?
When I got my first multimeter (back when I was about 9 yo), the first thing I did was to measure the mains voltage. Happy to see the nominal 127V, I decided to measure the mains current.
Yep, had to buy new tips the next day.
Never thought to measure the mains resistance though! ;)
yup I did that on a 240v ac plug funny
Lol did the same with my first mm but i also tested the mains resistance and booom there it went
Ricardo Menzer same. I thought whatever has the sine symbol is used for ac and boom. the metre was very cheap but still my hand is okay.
You should not
I did the same, to check if we have the rated amps on the socket :D
Incredible, how the fluke meter recovered. It would be interesting to see the differences in each meter teardown the applications used for input protection.
If this video taught me anything, it's that you can never, ever, ever have "too many" multimeters.
Excellent job here. You're awesome for following up on previous videos where there might be questions about certain things. Thanks for all the hard work & dedication you put into these vids!
I was really hoping for some magic smoke from the Vichy. I ought to send you one of the miniature analog Wal-Mart meters they sell for about $9; I'm almost certain it wouldn't survive.
Thanks for your videos Dave, I'm very happy for my BK precision!
I can see Agilent now, working on a meter that not only maintains accuracy after taking mains in the ohms range, but also gives you a valid ohms reading of the parallel resistance of all the mains transformers connected to that circuit
@SampsonGizmo Because it's very likely that someone will accidentally apply voltage to the meter on the ohms or diode check function. This is a "test" of how well / if the meter will recover.
Thanks for testing the VC99, too, so I don't have to. I actually bought it after I saw your shootout, because I thought it performed very well in that. Didn't perform bad this time either IMHO (resistance measurement was spot on). It may be cheap chinese but it's not bad for the price. Had no problems with it at all in almost a year. And due to the US dollar being worth shit at the time I bought it in Euro, I'd say it was a bargain.
So THAT'S why some multimeters cost several hundred dollars (and are not a rip off). I guess they really are super awesome quality.
I wonder what would happen if you used an even cheaper multimeter than the ebay one you used. One of those multimeters you can get for $5.
I would really enjoy a Fluke series test much like this one. as to see the engineering differance ' s. I have a Fluke 179 and I'm wondering if it has the same failsafe as the mighty 87v.
cheers.
@hitachi088 Because blowing up fuses and possibly meters is a really worthwhile use of his time.
I'm used to the old meters that would smoke instantly on 120VAC, much less 240VAC.. Barbecue's your uncle!
@hitachi088 I know that's what fuses are for. Showing how easily a fuse blows when you put several kiloamps of fault current through it is not overly exciting. It would be interesting to see how many of the cheaper meters continue to function afterwards, but not worth the possible destruction of them.
I would have put the meter behind a sheet of lexan (perspex). You're braver than I.
I've got one of the Extech meters. I also now have a supply of 10a fuses after probing a car battery while in continuity mode ;-)
Good test! Dave congrats!
Is any one of those meters good enough that while being overloaded it actually measures the resistance of the circuit they are being overloaded on ?
:-P
Dave I really like your multimeter reviews, but I never saw Mastech brand reviews, they are main go in my country, would be great if you could take a look at them, myself using MY68 :]
That was an excellent test review. Thank you.
Dont know if this has an impact to the accurate measuring but when you sticked mains to the second Gossen meter battery signt went from 1 bar to 0 bar and when conecting to precise box again it returned you 1 bar back.
What is that gsm fix you talked about for a Fluke meter . Which meters did it affect and what did it fix in the fluke meters . I have several flukes from over the years from when I was in the NAVY on Submarines to when I worked as a electronic tech for ASI company working on Delorean radios .
@SampsonGizmo I belive that the purpose of the test is to see if the meter allows for human meter. Decent meters should be tolerant of the occasional whoops like that.
But don't try it with a $10 bargain bin special as I'd expect them to go bang in some fashion. I wouldn't want to try it. :-)
very, very nice video! keep it up
This was great to watch :)
There are many meters which will measure the prospective fault current.
Try it on one of those cheap £5 meters, just remember to use a blast shield!
Very interesting video! Was hoping for some serious curse words at some point.
Hi. How about Brymen's multimeter BM867 one. I've bought one after your rewiev and hope to see him in further tests ;) thanks
I'm surprised theese can survive that, I still wouldn't try that with my meter. I allready fried one when I accidentally put a few kv through it (even tho that is way more than mains voltgae).
I have my Fluke 87V and the Metrahit E-TRA (I have a lot of other gossen DMMs and some UNI-T ones)
This test only proved that a humble chinese ddm below 50 dollars, performed much better than others North American brands costing hundreds of dollars
agree
Why did the Vichy 99 survive the ohms overload with 240vac? I was expecting it to blow like the Fluke video with 750vac ohms overload test on the Harbor Freight $5 dmm. What's the difference with that $5 meter? I expect those expensive dmms to survive, but for the Vichy to survive... there should be at least an explanation why it survived that test to bring it up from just boys having fun blowing things up and put some science into it.
its propaganda that cheap dmm is bad
He already blew the cheap ones that fail this test in his multimeter shootout. These were the survivors, so he knew they would survive 240vac on the ohms scale.
Try this on a Brymen 869s or 257 or even your blue eevblog 235. I like brymen and these tests but cannot afford to do them myself so it is better watching you do it, lol
If you have good PPE, try it on one of those $10 Chinese meters.
@ncrdisabled Search for "Fluke GSM"
I can't have been the only person who was hoping one of these would explode in flames?
Try to measure the mains frequency with the Vichy, that blew up mine! (Then I got the U1272A)
+TheAmmoniacal my vc99 have no issue with that.....
@@reeseyme9613 Maybe he used the logic level frequency mode to measure mains. Usually these cheapies have no protection on that.
The interface is for connecting it to a PC.
FLUKE = Like a Boss !
Aaa! You blew my mind! One device it cost as one my salary! You scared me!!!
Dave does this stuff so we don't have to. I'm not gonna do that to mine (though I know it will survive now).
could someone explain to me what this test is? Like why would you want to plug mains up to the ohms check? whats going on here?
Fault tolerance for careless or ignorant operators is to some degree built into modern meters. This is measuring the goodness of various meters in that respect.
The BK Precision meter's excellence was predictable.
can you try the flir multimeter ? its costlier than fluke
Now do that with a DT830D cheap $2 chinese meter lol
@hitachi088 I know, and I was commenting on the suggestion. Maybe YOU don't like valid criticism, but others might, and this is a public forum. Don't get so worked up over someone not liking your idea.
Manufacturers should use you as standard certification
They probably already do such tests
now, when are you going to look for common parts in the input protection in all the multimeters that demonstrated this behavior.
What does that infrared interface on multimeter does? or what is it for?
i'm not very experienced in electronics, but would this make a difference if you would switch the probes in the mains cable? Could the phase or neutral lead make a difference?
freakaefari polarity doesnt make a diffference on ac... on dc it doesnt either youl just get a negative reading if they are reversed
That fluke meter looks 10 times more expensively made than the Agilent.
Garage Geek Guy it's actually quite the opposite both from appearances and cost
Let's poke it with a stick! (Suggestion for the title of this video)
Apparently his 10 sec is 15 sec
@jhonbus no you weren't
Wow 😳
Throw a cheapie multimeter , would love to see it BLOW !
👍👍
*DANGER - 33,000 OHMS*
@hitachi088 Oooh, you're just mean!
Agilent is the worst of them, Agilent instrument are a complete garbage.
I use Fluke 87v, fluke 28II, Fluke 99II and I very happy with them.
lol you use 3 fluke to be sure? so much confidence in fluke =))))
I have been using fluke from 1987 it is the best.
why you racist to voltmeters . all are almost same. who measure so much accuracy after using it on mains ?