Using a clamp-on ammeter to determine current flow in an extension cord. Visit www.NoShockZone.org for more articles about electrical safety.
Пікірлер: 111
@davev50314 жыл бұрын
Great info. Did not realize that the positive and negative would cancel each other out when using a clamp meter. Thanks for making this video. NO such information in the instruction manual that came with the meter.
@adameckert85423 жыл бұрын
This video should be included in the manual with every meter.
@stinkycheese8044 жыл бұрын
Thanks for the video. It is surprising how many people did not think about this and reached a false conclusion about current by measuring the whole multi-conductor wire.
@Jsuarez610 жыл бұрын
So glad I watched this first!! I was putting the whole cable (black, white, green) through the amp meter's clamp.I was about to return the device. Rechecked the wires and now they read what I expected. Thanks for the video!
@martinpescador56428 жыл бұрын
+Jsuarez6 Chuckle chuckle... I was just about to do that too... : )
@ahmicm237 жыл бұрын
Same here :)
@Bylga7 жыл бұрын
Me too. I have never used a clamp meter before and i have a home / industrial degree to be a future electrician. x.D Ohh the sadness
@williamschroeder30705 жыл бұрын
Just did the same thing with a meter I bought off of Amazon. I thought the clamp could just go around the whole extension cord. Live and learn!
@Itdontmatter696 ай бұрын
Ya geez same haha. Tried absolutely everything in the shop. Was ready to return it
@mrhenry111211 ай бұрын
After 12 years and still thank you for the video.
@bleebybleebybleeby4 жыл бұрын
Thank you!!!. I thought my brand new clamp-on ammeter was broken! now I realize I need to make a little 3-wire extension cord with the 3 inner wires separated, so I can clamp on to the black or white wire.
@davidwiltshire59112 жыл бұрын
I bought the full thumb hole 22 version in 2009. I was stunned with accuracy straight out the box. Your review is spot on. I went on to buy the bull pup then the 110 laminate which had a manufacturing fault but I sorted myself.All top quality German engineering. 👌
@psiwog6 жыл бұрын
I feel like an idiot! I bought an ammeter and wondered why it didn't work when testing things in the garage :) God Bless you
@loganderksen47254 жыл бұрын
Same here......
@kevinkinal95573 жыл бұрын
Not exactly a "how to" tutorial, but it was exactly what I was looking for (show very low amps through an extension cord)
@Wallyskat4 жыл бұрын
The hot wire, not the entire cord! No wonder I wasn't getting any reading. A good short and sweet video. Thank you.
@rontiemens25533 жыл бұрын
Thank you. Clear and concise. Good information, well-presented, is timeless. Excellent.
@TonyTheTruckGuy3 жыл бұрын
Well that explains it. Bought one of these specifically to measure the amperage draw on my new pressure washer and I basically get just zero. In other words, I’d have to cut up my new pressure washer power cord to get an accurate amperage reading. Very frustrating. Thanks for the explanation.
@TonyTheTruckGuy2 жыл бұрын
@@simonwilson7581 Ended up just buying a different style for $10 on Amazon that plugs into the wall and then you plug your item into that and it gives you the reading
@RAPPATENGO7 жыл бұрын
Those glasses, that lab coat, that cross handed posture, take my money sir
@barnycanuck62345 жыл бұрын
Thanks for that explanation. I was on the verge of thinking my Fluke 325 was defective
@TheJali458 жыл бұрын
GOOD VIDEO, THANKS FOR TAKING THE TIME TO SHOW A VERY GOOD WAY TO USE THE TOOL.
@JasonS_BCIS11 жыл бұрын
They aren't exactly intended for "home/casual" use, but rather industrial applications such as large systems/machinery/etc. I'm pretty sure he just stripped the extension cord as a demonstration tool, really. :-P However, I must admit that I'm putting together a very short cord, essentially just a plug and socket with the separated wires being accessible but of course still insulated, not too vulnerable to damage. Then I'll be able to test anything plugs into a socket. Not typical usage, no.
@zhumusic-ng9tr Жыл бұрын
Bro no wonder. The canceling each other out had me in circles lol
@Itdontmatter696 ай бұрын
Ahhh geez explains why my new Fluke meter isn’t working. Didn’t know it had to be only one wire.
@JFT8035 жыл бұрын
Thank you sir for this 2 minute answer to all my questions!!!! Thank you so much!!!
@vitalikd Жыл бұрын
Finally lol thank u for explaining I almost returned the fluke device
@JasonS_BCIS11 жыл бұрын
For DC, what you do is run it through the wire leads of the meter. The current then actually flows through the multimeter, giving you a reading. At least, that's what is typically done. I'm not sure if a magnetic field type ammeter such as this could be used to read DC amperage with different circuitry or not...
@kartboarder22g172 жыл бұрын
Yes I have one on order that supposedly will do this, but accuracy sounds like it isn't as good as what you say, still quicker then what you specify to do. I'll give it a go on my car once I get it.
@FederalMenace4 жыл бұрын
no wonder I couldn't get it to work. THANKS!
@SONOFAZOMBIE20259 жыл бұрын
Even though this was uploaded in 2011, why does it look like 1985 editing?? I expected to buy a new Delorean at the end lol Thanks though, good info.
@atrapasuenosdream30173 жыл бұрын
Fluke 322 do the math
@bradleymorgan82237 жыл бұрын
I feel like an idiot now... Thank you XD
@Betterifitsfree3 жыл бұрын
lol welcome to the club 🤭
@1toomanyhobbies13 жыл бұрын
cool video. I am just starting to learn about RV electrical systems. I am looking forward to more videos!
@Milo300664 жыл бұрын
New knowledge for me. No wonder I could not get a reading. Now I know. Thanks
@alexanderleiva66393 жыл бұрын
Me too ....
@micromachine79548 жыл бұрын
Just what I needed! Now I just need to make a jumper cable to use with it.
@weera1048 жыл бұрын
Thank you, Mike to show us it very easy to understand . now I know how to use it , very help full.
@someitguy21759 жыл бұрын
Now that I know to modify an extension cord, the server room's power distribution will be properly mapped. :-)
@KevinHalladayGlynn2 жыл бұрын
Thank you!! I was so confused
@Mentorcase11 жыл бұрын
I have a cheap little clamp meter I got of the bay and today after years I tried it on dc and it appears to work, I have 2 battery chargers running in the garage and the clamp agrees with what the ammeters on the chargers are saying even shorted out the little one's leads and it read 16 amps till the internal breaker cut out, same as the dial on the charger. I always thought you couldn't measure dc with these units. It is a MT87 clamp meter.
@TheRealPaul52711 жыл бұрын
Only if the clamp-on ammeter has a "AC" AND "DC" setting, or if it blatantly says "measures DC" on the package or "AC/DC" on the face of the ammeter. btw ac/dc is a good rock band too.
@kenb31637 жыл бұрын
Exactly what I was looking for
@bryangomersall35098 жыл бұрын
Great video, thanks for the knowledge
@Joeelectronicschematicsforauto4 жыл бұрын
Great video and great information right to the point love your channel
@markharrisllb3 жыл бұрын
So it’s worth having an extension lead with the wires separated for when you need to test AC current.
@joeh6903 жыл бұрын
what about the direction of the meter the current passes through + or - side on the meter, that does make a differnce
@omidh33558 жыл бұрын
Thank you.
@ScreamingEagleFTW2 жыл бұрын
there should be a clampmeter that you can put around the whole cord and then since the negative cancels out the positive to show zero, there should be a button you press that j ust shows the negative or the positive. There must be a meter like that somewhere do you know of one?
@charlierichardson18263 жыл бұрын
Awesome! Thank you for this video.
@motodrummer4 жыл бұрын
So you cannot check an extension cord for amps, what else can you do? check the wire that is plugged into it? Not like I am going to cut into an extension cord.
@derunkarabeyoglu35277 жыл бұрын
I was about to get crazy!!! Thank you.
@taab77 жыл бұрын
I clamped the jaws directly onto the insulated 3 core power cable supplying 220 volts to a bar heater that was pulling 800 watts and got a reading of 0.7 amps. Does that amp reading make any sense?
@bigpardner3 жыл бұрын
Thanks for the video, although the part at 1:10 about the white wire's current being "opposite" to the black is something I'll have to give some thought and study to. Having to clamp around one conductor certainly makes the process difficult if not impossible. Do people make, or buy if available, a short gadget with three wires separated, with a receptacle and plug, so they can plug in the device and test one wire?
@kartboarder22g172 жыл бұрын
Yes they make them for 12-15$ I just bought a 1 foot extension cord 12 gauge and will split the wires like shown above. 1 foot extension is about $8
@AriannaEuryaleMusic8 жыл бұрын
Great tip!!
@hansungpil9 жыл бұрын
I measured amp on a conduit of our building, it shows 7amp which presents there is fault wiring. How to trace where is the fault wiring or maybe neutral wire goes to a different circuit? Is there any tool to find where the fault wiring occurs without tearing down the wall?
@DevouredByADream3 жыл бұрын
Can anyone explain how the white wire, which has equal current, is somehow "equal but opposite" causing the current to....dissipate!?
@professorm41712 жыл бұрын
Any idea why a clamp amp meter would trip a CGFI outlet?
@roncooke21886 жыл бұрын
Problem then how can i test a two core cable? no use using clamp meter and my multi is showing continuity and 230v but cable is faulty
@MrJerryYT7 жыл бұрын
if we attached two wires of 12 voults does it double amps limit
@benedictbuberwa39436 жыл бұрын
Nice tutorial
@jjcdFouR11 жыл бұрын
he needs a closing catch phrase
@MrJerryYT7 жыл бұрын
can i attached red and yellow and orange wires of a computer pcu to take maximum amps
@12vLife5 жыл бұрын
can I expect a $10 ammeter to work as well ? even on 5v usb 22 gauge lines?
@aiubjabary2683 жыл бұрын
thanks ❤
@robviolin19 жыл бұрын
Your vid help, thanks. What is a good clamp on ac/DC meter for general use? Something under $50. Thanks again
@nishantkundu62105 жыл бұрын
Uni-t UT210E.its 2800 rupees cost .it has ac,dc current ac,dc voltage , capacitance, ohmmeter,magger,diode check, continuity,back light,non connect voltage detection,vfc for variable frequency drive voltage testing.holding for reading.and it works on two AAA size battery.im using it from last 1 year .....it's highly accurate
@tiradojj11 жыл бұрын
Just excellent !!!
@user-oq6bp8xb7g10 ай бұрын
I love it
@BenFreedmanRacing4 жыл бұрын
Very helpful
@satishkesanakurthi849011 жыл бұрын
thank you for the info.
@malmckee93589 жыл бұрын
What's an "amper"? Is that like an ampere?
@sawo13376 жыл бұрын
No, not at all.
@jontangenes92754 жыл бұрын
Thank you! I have for a long time planned to by one of theese meeters. Will it work the same way on DC current too?
@samwagner314 жыл бұрын
it has to specify that it has a DC ammeter. I made the mistake of thinking that it read AC and DC amperage becuase it read AC and DC voltage, but I was wrong.
@centosan14 жыл бұрын
Is this also true for non-contact voltage pens ?
@MelFireHD7 жыл бұрын
Thank you!
@carot20037 жыл бұрын
Thanks, helpful.
@danssv88 жыл бұрын
Thanks for sharing
@dandaman150c5 жыл бұрын
A grabby jaw lol. Technical name
@frankpl84209 жыл бұрын
Thank you very much. I measure is zero long time.
@yedrow13 жыл бұрын
Thank you so much!!!
@salvadorrios63187 жыл бұрын
How accubrush paint edger work
@bobbykoulouris7 ай бұрын
Ampers?
@traumahawk51712 жыл бұрын
does this work for DC current flow also?????
@sms91067 жыл бұрын
Thanks
@Ssharma420s3 жыл бұрын
Thanks sir
@traumahawk51712 жыл бұрын
thank you for the info :):)
@bastawisy30008 жыл бұрын
thanks a lot..
@nazeer19188 жыл бұрын
Thanx bro
@e.r.61474 жыл бұрын
How about 240V tho?? 🤔
@ujayet8 жыл бұрын
why did the white wire not shiw current?, What is the purpose of it being there?
@PyroShim8 жыл бұрын
+KZfaq Tv The white wire had the same (but in opposite direction) current as the black wire. The green wire (normally) carries no current. The purpose of the green wire is a safety feature. If for some reason a metal casing becomes "live" the green wire will ground the case.
@balramramchait49497 жыл бұрын
The reading on the green wire was due to induction
@tcolondovich29965 жыл бұрын
If you're asking why all 3 wires wouldn't show current, it's because the ground wire wouldn't be used for anything in this case. I think he explained the other 2 wires quite thoroughly.
@armandom.52997 жыл бұрын
NO---SHOCK ZZONE!! NO---SHOCK ZZONE!!
@user-my6ee4rj9t8 жыл бұрын
good
@crusty2110 жыл бұрын
Great,..just rig an extension cord like that one instead of cutting into the appliance power cable...my customers wouldn't like that.
@stinkycheese8044 жыл бұрын
Except many appliance power cords aren't terminated in a plug, but yeah maybe in mobile power if you set it up that way. However if you have a plug, I'd sooner use a kill-o-watt meter because not only does it show current but also logs power consumption through the various power states to reach a total power supply budget.
@G369349 жыл бұрын
I cant handle videos like this. ammeter? Would be for measuring AM radio stations? How about saying amPmeter Ampers? Amperes!
What can't you handle? The fact that a meter for measuring amps is actually called an "ammeter"? I'll admit the English language is funny but you can't blame the video for an amp meter being called an ammeter!
@mylesaubrii12 жыл бұрын
thxz
@jspinks23884 жыл бұрын
well something fucked it up..so yeah i removed it Lol...then yeah it was ok for awhile then yeah it just alll got bad lol.