How to use a multimeter for advanced measurements: Part 2 - Current Probes / clamps / transducers
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- เผยแพร่เมื่อ 21 มี.ค. 2012
- Multimeter tutorial - This series of videos is a tutorial on how to use a digital multimeter for beginners. It will also explain the basics of electricity and address some safety issues.
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My website and forum:- www.mjlorton.com
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My techie channel MJLorton - Solar Power and Electronic Measurement Equipment - / mjlorton
My Techie Amazon Store: astore.amazon.com/m0711-20
My other channel VBlogMag - For almost any topic under the sun! - / vblogmag
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How to take current measurements using a multimeter and current probe.
My Amazon store: astore.amazon.com/m0711-20
Items and topics mentioned in this video:
* Current measurement with a multimeter and current probe / clamp / transducer / tap
* Hall effect DC current transducer - en.wikipedia.org/wiki/Hall_effect
* Measure AC and DC Current Amps using a Hall Effect Current Sensor Transducer - scienceshareware.com/how-to-me...
* Fluke 80i-110s AC/DC Current Probe (100 A)
* Fluke i400s AC Current Clamp
* Major Tech MT22 multimeter with current clamp transformation 1mV / A
* Toptronic T8056 1000A AC/DC tester - วิทยาศาสตร์และเทคโนโลยี
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Viewing 10 years after you posted... still incredibly useful, thanks
Martin I must say the detail and effort you put in to your videos are outstanding i enjoy the relaxed way you explain very complex things even a slow wit like me can follow and understand well done
I have learned a incredible amount of electrical info from your videos! Your so precise and detail oriented that even a slow learner like me can take in the info and apply it! THANK YOU SO MUCH FOR SHARING!
Very informative, as usual. I appreciate the layman's language as well. Beginners can get lost trying to keep up when too many tech terms are used. They can be learned at your leisure once you understand the process.
The best channel on you tube in this category. Thanks
Type "multimeter review" into Google, you'll see one of my videos near the top and a website call "robotroom(dot)com. The gent there provides some very handy info on little solar powered projects.
Very nice, thank you so much. I am a new hobbyist and have got all stuff ordered from Amazon. I needed to know all this.
Your instructional videos are outstanding, Martin.
Thanks. Since I started watchingyour videos I learned a lot . Thank you again , and please keep your good work . Good luck.
Great video! Enjoyed it. I bought an Amprobe line splitter which makes using the Fluke clamp very easy for any given appliance. Costs like 20 bucks. Thanks
My pleasure, thanks for the feedback.
Thanks VERY MUCH for these wonderful learning videos.
Very good, I like your not hurried pace to explain even the very basics.
+Varuna Desilva My pleasure, thanks for your post.
@@mjlorton hi,martin,do you have any videos on cbi earth leakage breakers and how they are wired in conjunction with a main switch
Very educational and well explained. Thank you very much, and please continue to good work!!
Great videos, I learned more about testing diodes on the last video then our curriculum on dmms at school.
Thanks! I appreciate your feedback.
Ok..if you look at my Amazon Store (see video details) there are a few cheaper clamp meters for around $40-$70. There is one on Amazon for $21 but I would not waste your money as the rating does not look good. Thanks for watching and posting.
Another great comprehensive tutorial ! I use wireless power meters various brands.. I then can connect them to a computer and download all the data, as they offer a very large memory storage bank. So I guess for solar power they would be really great, maybe not for accuracy, but surely for trend.
Thanks once again for sharing the wealth of information! And you call yourself amateur !! Wow I'm at kinder garden than LOL
Your explanation is so great that is better than few teacher I got on my school. I'm on HVAC/R, but when we get to reading multimeter i did not get it until I watched your video.
Thank you body.
Thanks for the info and the feedback.
these videos have helped me alot in my small solar projects. i would like to find more in formation on small circuits and resistors im looking to build a solar heater with a small fan and a snap disc and a small solar panel to power it all with no batteries. im also looking into building led lights for small power consumption. thank you for all your help
Thanks, appreciate the feedback.
Thanks for the feedback.
Valuable informations.Thank you.
Thanks for a very good tutorial,enjoyed very much
Great Video Dude. Keep up the great work. Nick.
Very Nice, thanks for the great tutorials!
No problem...glad to help. Cheers, Martin.
Thank you, very useful information. Cheers
another great informative video...thanks
Thanks for explanation! Great video!
thank you for the information and the link.
Great video very easy to follow
Great Videos and very useful to learn from, think I learnt more watching this video than I knew about electroics, well on this topic anyway Martin appreciate you posting these, if I may ask a question about a PCB that comes out of a old 8mm movie projector, It supplies power to the micros witches that run projector, and controls speed & Direction of the DC motor. It is getting 22volts on it's input terminals, but not outputting anymore than 2 or 3 volts on it's outputs. I can see no obvious damage to board or Cap, Resistors etc well obvious to me, If you have time, maybe you could look at the short video I have uploaded and suggest what I should be checking first. 8mm Movie Projector Speed control board no power coming out Thanks Phil
Martin have you made vid. on what/how "Frequency" setting is used on a multimeter? i can not figure out how it is used....
great videos, Thank you very much.
thank you for all your videos :)
Very odd...I wish I had an 87V to check this. If you post the question on the forum you will certainly get feedback on the issue. Thanks for the post and watching.
Thanks!
mjlorton Martin
;Good afternoon ,
Thanks a lot >............
this video was really helpful!...
Very educational and well explained.
I always benfit, from you instructions >
I really appreciated the time you took
and your explanations.
.
.
Maho A >
a civil aircraft Engineer and
FAA, A&P / IA Inspector .
NDT/ NDI level II Inspector .
Great tutorial
Fantastic.
Good video. Thanks from Texas.
Great Video, Martin!
Do you think we can track down a current AC leak problem of an house using a clamp? (Maybe with one current transducer with a resolution finer than 0.5A?)
Great videos, i'm learning a lot from these. From the beginner series i gained very much. Is there a part 3, or is a successor to this tutorials ?
Thanks vir die videos Martin ek dink jy sit great effort in en gee jou eerlikke opinie :)
hey
mjlorton
you are the star!
Great instruction
Profitable. Thank you Sir
like it, in encouragement for continuation of more educational videos
On your video I see ecactly the same thing I am experiencing.
At 17:55 check how long it takes to settle on the current reading when you switch on the load.
That slow response not only takes any inrush current measurement out of the question, but also dampens any measurement of a varying load.
Then @ 21:24 check the snappy response of the MT22 working in conjunction with the same current clamp.
Thanks for the reply. I may find something more interesting to post on your forum in the future.
Great Video Thanks.
Excellent video as always.
+Spoolz07 Thanks!
great comparison. I was breaking my head on what to buy
Baie dankie, ek waardeer jou vriendelike woorde.
Thanks a lot
I like it.Thanks
Great video 👍
thanks to everyone for this video
thank you sir
Very good video's
Good
What would be your reaction on the danger of the frequency of 50 Hz AC where it concerns the consequences for disturbing the human hart rate?
Kind regards and thanks for sharing your professional knowledge.
Mr. Martin, Great video. just a thought, if you had a spliter ...than you wouldn't need to cut the wires....
sir this fluke 1400e 400a ac clamp is also compatible to fluke 115BMax
Hi Martin, great video. When taking current measurements should this be on the load wire or neutral, or does it not matter. Thanks again
thank u
Thank ;-)
thankyou
Ok, so you can plug clamp transmitter into any kind of multimeter? For example I own Aneng 860B+, plugging something like MASTECH MS3302 clamp will work?
Hello, Why wasn't the FLUKE 177 used for this demonstration?
If it's for educational purposes then yes, certainly you can. I would just ask that you please leave the video intact with the banner so people know it's my video and TH-cam channel. Please do not upload it to another channel or website. Cheers, Martin.
Sir pls share where can I buy adapter for hall effect probe BNC to banana
These are all things I do every day, but thank you for the awesome video!
I realy wonder that what is the maximum frequency measurement of the fluke 80i. on datasheet it say that 100khz but I think it can do more. Please can you check it for me and tell me. thanks,
I want to send you a picture that I have a question about. How could I do this?
Thanks
The fluke 43b and fluke 125 series will take the clamp measurements and convert straight to amps
I don't mean to be negative but I don't know what kind of a person would be intelligent enough to enter a video such as this yet too ignorant to recognize the value of this video and give it a dislike. Really, a great video.
Hi Martin, is it worth having the 87 over the 83? Apart from accuracy and temp probe, I can't see much difference, the 83 is much cheaper!
wheres' part 3? i'd like you to go over shunt current measurments
So, if I want to measure DC current, like 30A, the best thing would be to buy a clamp multimeter that can do DC current? I'm looking online to buy one, like up to 20$ (since I will use it only occasionylly) but none of those has DC current as a option... Thanx for the video
how do I measure miliamps on a proximity sensor with 4 wires using a normal multimeter without the clamp? I know it has to be in series but the 4 wires confuse me I have the positive , negative and two more that say load, where should I put my leads to take the measurement? I know the range should be between 4 to 20 ma , pls give me some orientation
please do a tutorial on analog multimeter
Still need to produce it.
I have an outdoor thermometer sensor. It stopped working so I disassembled it and found the bad part is labeled x1 on the circuit board. Can anyone tell me what an x1 is? Any help wou It apparently has something to do with wireless communication and this is what I have a picture of. Any help would be appreciated.
Can I download your video? Because I want to share to my students in Myanmar .
divide by 10 or move the decimal point over to the left for every 10mV/A
what is the length on the i400 clamp?
I have a question...understand I am way out of my element here. I understand that it is possible to hook up the Fluke 87 to a tablet or laptop and measure/graph current usage over time? Is that so? How does one go about doing that? I have a persistent surcharge on my electrical service for a usage spike and I can't understand where it's coming from. I would like to be able to pinpoint what time of day this spike in usage is happening and then start going from building to building on the property if necessary to discover the source. Can you help me? I was recently given a Fluke 87 III but I assume it's pretty close to the same as the V you've been making your videos with. Thanks in advance, Jason
in essence I like your videos
Don't use the Rel-delta mode on 87V. You got the concept wrong in the use of that button, it's not for zero-ing but to save the last reading and automatically add or subtract it to the consecutive reading. When under load that meter will display the correct reading even though it's not zero at idle. Nonetheless informative video on the types of amp clamps you use.
The load / live wire...but be safe...
Hi Martin,
According to the fluke manual for the 87 V, zeroing the meter in the AC voltage ranges is improper becuase a it says a small residual voltage is expected due to the characteristics of RMS measurements. I don't have technical knowledge of why but that is what it says in the manual
It is in a section titled "zero input behavior of true rms meters"
It says there must be a minimum voltage present to guarantee accuracy, for the fluke 87 V, it is 3% of the range, or 18mV
I like to measure starting current from car - maybe 200-400A. Only for fun, not for accuracy. Without interrupting the circuit. I know Matech MS3302 extension for multimeter which is until 400A, but is only for AC current. Another device or how to persuade Matech MS3302 to measure DC current? O:)
nice demonstration.
The thing I don't get, is why the AC mV range on the 87V responds so slowly...
I have bought both 87V and a i410 AC/DC current clump for some months now and i still can't get over that slow responce in AC current mesurement...
The DC mV range is properly sesponsive so DC Amp measurments are fine.
Granted, I didn't buy the 87V to use it only in conjunction with the current clamp... But it strikes me... having to buy another multimeter in order to have proper ACmV response.
what do you think about the fluke 376 true rms clamp meter? i have that and the 87v
I have 381 which is pretty much same as 376 just removable display....I love mine....
I assume you mean the cable length....it's 2.4 meters.
Can you help me for multimeter for tv service. is good thi
Peaktech P3360
help me am new on this I need help
Volts vs. mV / Amps vs. mA
What is the difference ? I mean to ask, which is larger : V or mV ............ Amps or mAmps ??
Is a volt 1/1000 of a mV or is a mV 1/1000 of a volt ??
Same question for Amps ??
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