How to use a Multimeter for beginners: Part 2a - Current measurement

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  • Опубликовано: 28 янв 2025

Комментарии • 884

  • @davidpopp3312
    @davidpopp3312 10 месяцев назад +7

    im watching these videos as a college student 12 years after theyre posted and they still helped me tremendously more than any class. much appreciated sir

  • @tanstaafl5695
    @tanstaafl5695 9 лет назад +17

    This is an excellent series. You are slow and methodical, but this is actually very good for a novice. Thank you.

  • @1957welder
    @1957welder 10 лет назад +79

    THANK YOU for these RUclips videos, you have made my LIFE complete and easier. I'm visual kind of student, I ""CAN NOT"" follow written instructions without stick figure diagrams. Again your an excellent teacher.

    • @perseuswillow8164
      @perseuswillow8164 10 лет назад +15

      DUDE!! me too!!!! Whenever we're on discussion my brain's like: "ugh....potatoes...." but when it's time to actually do it, i'm dominating!!!!!!!!!!!!!!

    • @calgaryscluelessdrivers1794
      @calgaryscluelessdrivers1794 10 лет назад +9

      I learn best visually as well. It really helps that he is an excellent teacher!

    • @johnpereira672
      @johnpereira672 3 года назад

      P; ko

  • @beta6024
    @beta6024 11 дней назад

    Just got 87 V multimeter and you brother have a gift at explaining things. Prior to that I had no idea what I was looking at--weird alien signs and stuff. Also Volts, amps, AC/DC etc are now making sense. And it all started from me replacing HVAC blower motor and a capacitor. Got myself my first adult Fluke 87 V multimeter and am learning how to use it right via your videos. Thank you my friend.

  • @mjlorton
    @mjlorton  12 лет назад +6

    Thanks!!! You're the first person in almost 40 000 to pick that up! I've added an annotation.
    Thanks for the feedback too. Cheers, Martin.

  • @TheMord1997
    @TheMord1997 4 года назад +5

    As a handyman and a relative newcomer to electricity, I find these videos extremely interesting & easy to follow - and you, a great teacher!
    Thank you very much for your clear and patient explanations.

  • @snm7406
    @snm7406 8 лет назад +9

    Either I've gotten smarter and/or focused in my mature years, or ...you 're one of the best instructors I've heard on all things electrical. I'd like to think it's both : ) ... thank you again for your excellent lessons. Keep up the good work!!

  • @mikeprell2747
    @mikeprell2747 10 лет назад +3

    I just watched part two. Again, what a refresher. Nice job! Showing both readings for volts and amperage at the end vividly demonstrates that even if a bulb is blown, the voltage can still be there to bite. Very effective!

  • @Silkroads733
    @Silkroads733 8 лет назад +2

    This gentleman deserves a medal, the best teacher going.

  • @joestyles4639
    @joestyles4639 7 лет назад +2

    This video is almost 6 years old and it's the best help I've had yet. Your teaching style is great! :D

  • @nathanhaber
    @nathanhaber 10 лет назад +8

    You're the best. You explained how to avoid blowing fuses when you know you have high current.
    Nathan

  • @shredder646
    @shredder646 11 лет назад +10

    I'm new to a multimeter, and so many times I've needed to use mine, and just didn't understand exactly how, and what I could do with a multimeter. This video was a huge help in understanding how to use a multimeter. Great video, very helpful. I definitely learned a lot. Thank you!

    • @m.riccifebrianto1189
      @m.riccifebrianto1189 3 года назад

      Qwa wkwk ww w ne farmaya w ne farmaya wwww w ne farmaya wwww ww di kecamatan tanjung selor wwaww

  • @DIENOSOUAR
    @DIENOSOUAR 12 лет назад +6

    I already understand what you are teaching but I give you a thumbs up for your service. I know how it is making videos it isn't a quick process.
    I respect your effort to help new electronics hobbyists learn the basic building of electronics.
    You do it so other people don't have to and you teach with vivid detail.

  • @giuseppebagnariol841
    @giuseppebagnariol841 10 лет назад +12

    Great job, I like the way you explain the concepts. Simple and to the point, no mumbo jumbo. Nice to see someone who makes sure to show how to do this safely rather than just sticking the leads on and see what happens!

  • @stephboeker7835
    @stephboeker7835 3 года назад

    I'm so glad I found your video tutorials on multi meter usage. I was impressed to see that you chose to thoroughly explain how electricity works as well as what it is actually doing in various applications. Including the "what", actually helps in understanding, both, the meter and it's role as well as resolves how the electricity's role affects a device.
    You are absolutely correct in pointing out that many "how to" video's are not thorough in creating a real understanding of the compete picture,
    I'm 58yrs old and have watched many video's or listened to hoards of ppl all my life, explain various parts of electrical theory and to date, always been left wanting or w/ a feeling of still being ignorant. Like memorizing the shapes of pieces to a puzzle but never knowing how and why they fit together , leaving me w/out the complete image they produce when connected correctly.
    Thank you for sharing this education w/ me and those like me,
    God bless,
    Sincerely .......................
    Steph (Stephen)
    Louisiana, U.S.A.

  • @burny88th
    @burny88th 10 лет назад +5

    this is probably the best instruction video series on electricity on youtube. Good work my friend!

  • @funkybioped
    @funkybioped 10 лет назад +13

    Thanks for the vids. Helping me understand the basics, which leads to the search for more knowledge.

  • @clivejones4292
    @clivejones4292 12 лет назад

    Great video Martin. 90 minutes ago I knew nothing about multimeters except that every DIY car mechanic seems to have one. Well, me too now - I've just bought one as I now understand the basics and how useful these devices can be. Thanks again.

  • @leestallard278
    @leestallard278 4 года назад

    I am an amateur radio operator currently studying for my next level test. I have a small understanding of electricity and some of the material I was stumped on. Your videos have explained it to me in a way that it all clicks now. Thank you so much. Subscribed

  • @jeremygallimore3042
    @jeremygallimore3042 10 лет назад +4

    Wow!! You are brilliant sir!! I've always been told it's does you no good to learn something you can teach!! Not only am I getting a top notch lesson in electricity but also great methods of how I could approach my teaching as well!! Thank you for all your help and keep up the outstanding work!!

  • @Brisk2020
    @Brisk2020 Год назад +2

    Excellent tutorial ... as relevant and useful today as it was when initially posted 11 years ago! very clear explanation and nicely filmed. This video finally drove some key points home for me on current and current measurement. So, I'm truly grateful for the time and effort you put into making this tutorial. I'll surely come back to this timeless video from time to time to refresh myself.

  • @stemull123
    @stemull123 11 лет назад

    thank you for your time to make this series, i just got my meter today and have only been around 12v car systems but going to be working with 120 and 240v systems this week. im glad i wont be going into something like this blindly ( ps been a long time since ive heard someone speak with your accent, its nice. my life long childhood friend's father was from south africa originally before coming to the us, and chatting with him about his homeland is always pleasant) cheers from the us

  • @simeonbanner6204
    @simeonbanner6204 8 лет назад +6

    Very nice man. The kind of teacher every kid should have at school. I got here through trying to figure out my electricity supply at home in the U.K. I was told at school not to study electronics because I was bad at maths. I worried about that for years and so now I don't care so much. I think I could probably understand the equations and I'm not sure fixing a few objects would require a degree level education. But.. I'll try for fun.

  • @btho93631
    @btho93631 10 лет назад +64

    Great job on dumbing down this for the individual who really wants to understand these concepts!

    • @mjlorton
      @mjlorton  10 лет назад +11

      My pleasure Barry.

  • @mphilosapon5233
    @mphilosapon5233 4 года назад

    Dear Lovely brother Mjlorton, Thank you for the above. Now I know a little more about how to use my multimeter sitting on the shelf! I am asking God to be with you all the time and protect you from bad things with your family members.
    Mr. Philo EBEED from Sudan kHARTOYM.

  • @samanthamabry6338
    @samanthamabry6338 4 года назад +2

    I truly appreciate your teaching method!! I have been struggling trying to figure it out on my own for quite some time. You are an amazing teacher and I look forward to watching all of your videos! Thank you!

  • @richardbradford3197
    @richardbradford3197 4 года назад

    I’m late finding your videos like some comments are from 8 years ago but I usually teach myself through research 🧐 either on google or RUclips but the worst I use to do was trial and error bad idea because with a multimeter I went through quite a few of them not knowing why but you are correct other you tubers do not go in as much detail. Like I hear the analogy of the pressure and volume to electricity being similar but never explain why that is that’s why even 8 years later your video is still very valid and puts other you tubers to shame. I’m sure others have gotten people hurt or injured because of their lack of information on how to do these things safe and without damaging your equipment. I just wanted to say thank you for helping me understand and I think the documentary I watched was because dc was so dangerous in homes because it grabs you and that way people could maintain their own circuits or change a fuse in their electric panel box without injuries. And I’m not certain but don’t they use dc for electrocution of inmates on the death penalty? I want to say I remember that was Tesla or the other fellow Westinghouse way to show how dangerous direct current was by electrocuting chickens 🐓 or something with dc or it might have been inmates lol 😂 🤷‍♂️ idk

  • @henrybartlett1986
    @henrybartlett1986 5 лет назад

    We are in a golden age of education and you are very much part of that. Brilliant.

  • @BartCee
    @BartCee 11 лет назад +7

    Great tutorial, I found out how I managed to blow the fuse in my multimeter and avoided doing that again in the second one :-)

  • @Silkroads733
    @Silkroads733 8 лет назад

    This teacher need a medal he fantastic and very easy to understand fantastic !!!

  • @barbbusch2983
    @barbbusch2983 9 лет назад

    Dear mjlorton: Fluke should be very thankful for your excellent presentation and tutorial of the Fluke product.
    I will be referring this video

  • @chrism.5282
    @chrism.5282 8 лет назад

    Thank you so much . I studied 2 years electronics and I have not learned as much as I learned from your videos.

  • @mjlorton
    @mjlorton  12 лет назад

    Thanks for the feedback. I really appreciate your kind words. Cheers, Martin.

  • @robertbutler4393
    @robertbutler4393 4 года назад

    Very helpful. I appreciate that you do not just show the procedure but explain the concepts behind the procedure. Thanks!

  • @nas8404
    @nas8404 6 лет назад +1

    Your great at explaining. I finally understand how this works. My father tried explaining but it went out the other ear. THANKS!

  • @Cyph3rHaxPalm
    @Cyph3rHaxPalm 10 лет назад

    This guys knows what hes talking about, its good for learning about electricity amps n voltages. Interesting video. Keep up the good work you do.

  • @anmwolfrc159
    @anmwolfrc159 9 лет назад +12

    I think you do a very great job....I understand every thing that presented god bless

  • @mjlorton
    @mjlorton  12 лет назад

    Hi Miguel, thanks for the feedback.
    In the video segment I connected to the 400mA socket only after taking the current reading of the LED at 8mA. The 3A was the reading from the 12 volt car light. The 10A socket would give you a valid reading but you would have less resolution.I hope that helps.
    Cheers, Martin.

  • @nate1593
    @nate1593 8 лет назад +8

    You must have indirectly sold 1000s of Flukes 117s!
    Great vids I'm off to get mine now.

  • @hawaiianf1504
    @hawaiianf1504 9 лет назад +1

    I have learned so much here today and in the last few days. Thank You! I look forward to learning how to do this intelligently and most importantly - Safely!

  • @georgeballance5966
    @georgeballance5966 3 года назад

    Managing to keep up with your explanations - just. Will need to listen to them again and take some notes so that the details are logged away :)... Thanks again for providing this series.

  • @alandmkday8581
    @alandmkday8581 4 года назад

    Your are amazing, I came on youtube looking for to start to understand electronics, so I can fix my old record player, you have now got me court I your videos. Thank you. You explain perfectly, I feel the relaxation.

  • @robinsonqioeg129
    @robinsonqioeg129 7 лет назад

    I'm just a beginner, nothing is old to learn. Excellent videos.

  • @BuddyWhoDoesStuff
    @BuddyWhoDoesStuff 12 лет назад

    This was exactly what I was looking for. I have a 36v battery charger and I want to make sure that it is working. Now I know how. Thanks a lot.

  • @mjlorton
    @mjlorton  12 лет назад

    Thanks very much, I appreciate your feedback. Cheers, Martin.

  • @michellewilkinson6741
    @michellewilkinson6741 9 лет назад +1

    I really like and appreciate your time that is spent on each video...Thank you very much!
    USA-Texas

  • @pinnychet2681
    @pinnychet2681 11 лет назад

    Best electronics tutorials on RUclips, and there are some very good ones out there.

  • @ssnoc
    @ssnoc 7 лет назад

    You are an Excellent teacher and I hope Fluke is paying you to use their meters - they need to be thanking you! Great series and I've learned a lot, thank you..

  • @rsael2
    @rsael2 12 лет назад +1

    Realy you did excllant demo;
    I like it, thank you very much.
    from an Arab engineer.
    أبوعبدالرحمن
    الأصيل الحجآزي

  • @mjlorton
    @mjlorton  12 лет назад

    My pleasure, thanks very much for the feedback.

  • @awesomises
    @awesomises 4 года назад +5

    1:44 I wish my teacher told me this when I was back at school.
    Now I've been doing uni for a while, and grown up a bit, I kinda figured this one out.

  • @markmarturano
    @markmarturano 8 лет назад

    This is the first time I ran across one of your videos and I just want to say thank you it was very well done. I plan on watching all your other videos.Thank you.

  • @vincentnggh
    @vincentnggh 11 лет назад

    I couldn't wait to watch this after catching your Part 1 video on measuring voltage. Another great educational video for me. Thanks!

  • @AhPhoey
    @AhPhoey 7 лет назад

    This guy is an incredible teacher. Excellent videos.

  • @estebanramirez9508
    @estebanramirez9508 7 лет назад

    Awesome tutorial my brother I'm a student currently about done with my schooling for HVAC and this is the best and most informative video I've seen thanks!

  • @dravinmech
    @dravinmech 11 лет назад

    I do enjoy your videos very much. Have been working on several projects for classes. Your videos are a great refresher. Keep up the great work please.

  • @vipergx
    @vipergx 4 года назад

    It is so easy understanding these things when they are so masterfully explained. Thank you.

  • @mjlorton
    @mjlorton  12 лет назад

    Thanks for the feedback. If you have your DMM leads in the A (amps) plug and touch the leads across an AC live and neutral or DC positive and negative you will almost have a dead short through the DMM. If the current is high enough you can blow your DMM and / or trip the mains...if it is through a trip. A good safe multimeter will have a fuse and other devices to try provide some protection against this error.
    Cheers, Martin.

  • @9zazaz
    @9zazaz 11 лет назад

    Thank you for this vid. Giving me more knowledge. I am loredo From Philippines and I am already 23 a reenter student taking again my course electronics. That I already take, way back 2008. And even you can say I am veterans ito compare to my classmates, but I can say I am still low interns of skills compare with them. To be a writer is my big dream since before,because that's only way to help financial my obstacles in physical.that's why I stopped study before and focus and now I want to exel ty

  • @SuperEagle421
    @SuperEagle421 9 лет назад

    You are a very good teacher. The diagrams, analogies, and practical demonstrations were all helpful. Thanks so much!

  • @lskarin
    @lskarin 11 лет назад

    Excellent presentation and videography.
    The multimeter measures voltage, current, and resistance. You never measure resistance in a live circuit. When you measure voltage, the voltmeter is effectively an open circuit, so if you put the test leads in the wrong places, you've done no harm.
    The current range(s) are the most dangerous, and here's why: An ammeter is a short circuit you mean to put in series with the current path. Screw up (like putting your probes in parallel), bad things happen.

  • @itchyallover9
    @itchyallover9 12 лет назад

    Thanks for showing us how to use the multimeter. You explain everything quite well.

  • @eliasgarcia2305
    @eliasgarcia2305 10 лет назад

    I WANTED TO SAY THANK YOU FOR SHARING YOUR KNOWLEDGE, FOR TAKING YOUR TIME TO TEACH OTHER, THESE IS A LOT OF HELP.

  • @fernestoiv
    @fernestoiv 10 лет назад +3

    You are really great at explaining this stuff. Thank you for the efforts.

    • @mjlorton
      @mjlorton  10 лет назад +2

      Frank Ernesto IV My pleasure, thanks for the feedback.

  • @MrBlompod
    @MrBlompod 11 лет назад +15

    Mate these tutorial vids for beginners are awesome, thank you :o)

    • @mjlorton
      @mjlorton  11 лет назад +6

      My pleasure, thanks for the post.

    • @777fuzzypeach
      @777fuzzypeach 9 лет назад +1

      Paul Thomas Second that remark. Very good indeed.

  • @victorianFella
    @victorianFella 12 лет назад +7

    you explain things much better than the tutors in the colleges do, great videos!

  • @robtriton
    @robtriton 9 лет назад

    I am a yank but it is great to learn more about DC current! Thanks brother from another mother!

  • @AlwafiCharki
    @AlwafiCharki 4 года назад

    i can say with full trust : this is the first time i feel proud and lucky that i can understand English
    thus video was really really juicy and helpful
    THANKS

  • @ElectroMac74
    @ElectroMac74 12 лет назад

    one of the most instructive video on youtube thanks, danke schön, شكرا

  • @timo22stirling
    @timo22stirling 10 лет назад +1

    Just subscribed. Im new to electronics and find your videos are some of the best ive found to help me. Many thanks for taking the time to describe and show all of this in a precise but easy to follow way!

  • @mjlorton
    @mjlorton  12 лет назад

    I would simply set the multimeter to DC volts, remove the bulb and check to see if there is a good voltage reading (6/12 volt) in the bulb socket. If you need more help post this question on my forum.
    Thanks for the feedback. Cheers, Martin.

  • @induranindustries706
    @induranindustries706 10 лет назад +2

    I was told that AC travels better over distance. Brilliant video, many thanks.

    • @SilentOneCorajuda13
      @SilentOneCorajuda13 6 лет назад

      Sort of correct. In DC, current reduces over long distances. AC, the electrons do not reduce because of the electron flow moves forward and backwards within a shorter distance compared to the one way flow of the DC electron flow.

    • @Youtubsucks5
      @Youtubsucks5 5 лет назад

      Yes without major voltage drops

  • @acky4life
    @acky4life 11 лет назад

    i just wanted to say thank you for your time and effort in these videos I have learnt so much...
    thanks again

  • @VandadNP
    @VandadNP 9 лет назад +1

    Thank you so much for taking the time to record this for us.

  • @CHB94
    @CHB94 11 лет назад

    This was the first thing we had to learn the electrician industry (at school)
    And your videos is realy helping!
    Great tutorial!

  • @deepconcept2020
    @deepconcept2020 3 года назад

    you are a natural teacher, i know one when i see one

  • @masnor2
    @masnor2 12 лет назад

    thanks very much mjlorton,before you video i never know how to use a multimeter,but after wacthing you video i can understanding to use a multimeter,thanks very much,,,,splendid,,,

  • @mjlorton
    @mjlorton  12 лет назад

    Thanks very much for the feedback.

  • @RoyAndrews82
    @RoyAndrews82 10 лет назад

    So that's why I had to spend $20 at Mouser for new 240v 1A & 10A Fuses. I tried to measure the current by touching red to red & black to black. Now when my new fuses get here I'll be prepared. Thanks so much, I had absolutely no idea this was the right way to measure current. It makes sense now. Now I'll be able to measure my Portable Cellphone Charger the correct way. (+1 : 3,443).

  • @ItsPouring
    @ItsPouring 4 года назад

    Thanks for the side-by-side of voltage and current - really hammers home the difference. *Excellent demonstration!!* 💡👍

  • @nickayivor8432
    @nickayivor8432 2 года назад

    SUBSTANTIAL Mijorton
    Part 2 tutorial brilliant thank you
    God bless you
    Mijorton
    From Nick Ayivor from London England UK 🇬🇧

  • @mjlorton
    @mjlorton  12 лет назад

    Ok, if your power supply is not limiting the current and you have everything connected correctly there may be (but very unusual) some regulation / current limit within the light.
    If you take a picture of your setup and post it on my forum I will have a look and try and assist you. Cheers, Martin.

  • @mjlorton
    @mjlorton  12 лет назад

    My pleasure, thanks for the feedback.

  • @sergeantbilko7070
    @sergeantbilko7070 11 лет назад

    Great stuff for beginners like me and you keep it simple to understand, once again for beginners like me.
    Much appreciated.

  • @mjlorton
    @mjlorton  12 лет назад

    My pleasure, glad you found the problem. Cheers, Martin.

  • @thejkzang1479
    @thejkzang1479 10 лет назад

    I surely learn something. Please share your fine method of teaching, I wish I had a teacher like you when I was young. Thank you very much.

  • @barbbusch2983
    @barbbusch2983 9 лет назад

    Excellent Videos!! You were born to teach this in my opinion

  • @surajsookhooa6953
    @surajsookhooa6953 12 лет назад

    very instructive well explained don´t stop here we need more instruction like that wish u good luck for the next program keep going.

  • @mjlorton
    @mjlorton  12 лет назад

    My pleasure, thanks for that feedback.

  • @jriver64
    @jriver64 12 лет назад

    You are a great teacher, especially in how you help me see both sides of the coin between the application of use and pictorial drawing. May COMTEST use you as their representative for this product. Thank, once again.

  • @mjlorton
    @mjlorton  13 лет назад

    @MrMacroVision Thanks very much for picking that up. I have added an annotation for the correction.

  • @pixellark3186
    @pixellark3186 9 лет назад +3

    thanks for amazing simple video it's learned me so much thanks from Cairo-egypt

  • @angeldejesus65
    @angeldejesus65 9 лет назад

    i have seen 2 vids of your tutorials... great and very informative... i looked and looked and your vids are the best....

  • @mjlorton
    @mjlorton  12 лет назад

    Thanks for posting an answer...check part 3 for an explanation. Cheers, Martin.

  • @swapnilmungee928
    @swapnilmungee928 9 лет назад +1

    Really appreciate the time and efforts you are putting in. Great job. Thanks.

  • @halcon255
    @halcon255 11 лет назад

    really very helpful for ordinary people like me to know the basics with multimeter..thanks..

  • @KeenanTims
    @KeenanTims 13 лет назад

    this series is shaping up well. nice work! enjoying them even though i know the material.
    the reason i mentioned the clip-leads wasn't (totally) because of personal safety. i have learned the hard way (too many times) that having random live conductors scattered across the bench is a great way to kill your circuits as they manage to brush accidentally against things. usually happens to me when a lead gets yanked accidentally and pulls half the benchtop items (often onto the floor) with it.

  • @mmmcchristopher4013
    @mmmcchristopher4013 11 лет назад

    i really enjoyed ur lecture. i gave my answer to ur question b4 watching this video but after watching i now get the correct answer. thanks a lot.

  • @edjohnecot5727
    @edjohnecot5727 10 лет назад

    sir martin, I have seen your video which is part1 a volt measurement, most of the comments there I don't really understand, but anyway I am very thankful to you sir because it helps me a lot, I'm looking forward to watch your next videos.

  • @mark1837
    @mark1837 4 года назад

    Most excellent...I am learning quite a bit about my multimeter from this video.