How to use an amp clamp (current probe)

[@theofficialspicyboi1174]

THANK YOU. THIS VIDEO SAVED MY MARRIAGE

[@vin605]

Very informative, thanks

[@eallanboggs]

The clamp sends a millivolt value to your DVOM or Oscilloscope. You do the conversion in your head after doing the measurement. It outputs voltage and YOU do the conversion. You take a measurement like 0.170mV in this video. With the switch in the middle position you move the decimal point one position to the right(multiply by 10) giving you 1.7Amps In the top position you move the decimal point two places to the right. Don't forget to take the 9v Batt out when done or the next time it will be DEAD. I made a slit in the Batt cover and keep the Batt on the outside. I found a DEAD Batt every time I went to use the probe

[@rubiconklbrutorowman7577]

Good job showing us!

[@nickayivor8432]

Good Evening Justin Miller take care and have a great day 👍 God bless you 👍 Great tutorial thank you very much 👍 From Nick Ayivor from London England UK 🇬🇧

[@HansBaumeister]

Good to see this in action, thank you. One thing: if the upper setting of 1 mV/100 mA is for 60A (the rating of the probe), then 1mV/10 mA will be 6A, not 20A.

[@JustinMillerAutomotive]

Those are just the ranges that the current probe is designed to measure accurately. Really, all it is doing is giving you more resolution (an additional decimal place) in your reading. You can measure more or less current in each setting than what it is rated for. However, the manufacturer only guarantees their rated accuracy when you stay within the range s(20 amps or 60 amps) they have specified. There would also be a minimum current that you could read accurately in each setting. Without the manual, I am not sure what that minimum is, but I would guess that it is around .25 amps for the 20 amp setting or 20 amps for the 60 amp setting.

[@ramongalavis3328]

Hey that's very usefull method to read amps .Even if we going to check any circuit separately. Greetings From Venezuela .Thanks for this info.

[@scottykilmer]

why didn't you use the dc millivolt settings on the fluke meter instead of the dc volt setting you used?

[@JustinMillerAutomotive]

I stayed on the volts setting because most other meters (besides Flukes) don't have a millivolt setting. They only have one setting and they autorange to the millivolt range.

[@robertmccully2792]

@Mike Hannigan good catch on the Scotty Kilmer comment.

[@SteveRobReviews]

I was just reading a notice from Pico about their currant clamps. Their saying to turn on an amp clamp without touching the zero button for 10 minutes stabilization time then zero out . I always do as you did , I'm waiting for my next test to see if the readings differ. Pico says yes there is a difference in readings.

[@nickayivor8432]

INTELLECTUAL Justin Miller 👍 Take care and have a great day INTELLECTUAL Justin Miller From Nick Ayivor from London England UK 🇬🇧

[@PhillyDee215]

Great video😃

[@honestinsincerity2270]

Good video but I think at the end, if I understood correctly, you're trying to say that 170mA is actually 0.17A (not 1.7A).

[@JustinMillerAutomotive]

That is a great question. I went back and checked just make sure, but I said it correctly in video. We are converting voltage to current. On that particular probe, the conversion rate is 1 mV = 10 mA. So, 170 mV = 1700 mA, or 1.7 A. I hope that makes sense.

[@honestinsincerity2270]

@@JustinMillerAutomotive Ahhhhh gotcha, I musta missed that part with the conversion but makes total sense. Thank you sir and, again, good info on the video!

[@humbertolantigua3939]

I thought the same.

[@h97034]

how many amp does it take to activate those round coated circuit breaker (the round ones with two wired clamps) will they work for anything from 5amp-30amp circuits.

[@Ryder4u1313]

So when you check what your alternator amps is putting out, you still use volts on the multimeter when your hooked to your amps clamp?

[@JustinMillerAutomotive]

Yes. Using this specific setup, you will get a measurement in volts and then convert it to amps.

[@Aaronsmith467]

So what if you put the clamp around two ground wires will the reading still be inaccurate?

[@JustinMillerAutomotive]

No. If you are around both ground wires it is fine. You just do not want to be around the power wire and the ground wire at the same time. The current flowing in will cancel out the current flowing out and you will get a reading of zero amps.

[@rrmech11]

very informative

[@DavidSanchez-sf3by]

Link to the store bought version ? Or the actual name please

[@JustinMillerAutomotive]

Are you talking about the current probe? They are usually called current probes, current clamps, or amp clamps. You should be able to find them on Amazon or just about anywhere that sells this type of thing.

[@DavidSanchez-sf3by]

Justin Miller no sir not the amp clamp. I’m talking about the store bought fuse holder to go into the junction box not the homemade one you made the “ professional “ one

[@DavidSanchez-sf3by]

Justin Miller sir do you know the name of the non household item you used

[@JustinMillerAutomotive]

Oh, I see. I am sorry that I misunderstood your questions. It is often called a "current loop" or a "fuse jumper" the most common brand name is "Fuse Buddy." Here is a video that shows how to make your own in case it helps: kzbin.info/www/bejne/hn7Qq5adhbiol7s

[@DavidSanchez-sf3by]

Justin Miller THANK YOU SO MUCH I LIKED YOUR VIDEO

[@jmac2050]

thaNKS

[@ahmedsohovunarhamsultan4171]

Hey,why cant insert wire to red A socket on multimeter?

[@JustinMillerAutomotive]

The current probe measures the magnetic field around a wire and converts that measurement into a VOLTAGE that corresponds with the amount of current going through the wire. For that reason, your leads need to be in the voltage position.

[@kirkbrown2147]

Because you're on the wrong setting on your multimeter. It won't allow you to measure voltage on the amps settings