I almost bought the CEM before your video had finished playing - it was doing so well. But that abrupt change beyond 4A to poor resolution and accuracy stopped me in my tracks. Very valuable video test - many thanks.
His sponsor doesn't even sell the clampmeters i think, and if they do, they wouldn't allways agree with the objectif tests and reviews Martin does in all his videos. The ads doesn't bother me and the sponsor made a good choice, because Martin is doing a good job : the pro's and con's from a product. I don't care if Martin get some good money; his videos are one of the bests on youtube in this branche. He has respect for his viewers and products; we have respect for him.Simple as that. Thumbs up!
its not about a lack of respect its about a good percentage of people who consider 99% of adverts an eyesore/irritant and object to things like having common words, feelings changed in some way to advertise products using daily thought association triggers like many adverts do. i'm pleased for you that you don't mind adverts tho. well done for you.
I bought one of these and I am very pleased with it, the eylet of the clamp is 1/2" dia which will easily fit over the 10mm main battery leads on large cars and light vans. One thing to note is when using it on smaller diametre wires and very small currents the angle of the clamp to the wire has a fairly large effect of accuracy.
Fair comment but I think the effect was negligible. What I will do in a future video is repeat the test to see if it does have any effect and then introduce a magnet and other items (including the meters themselves). We can see and be aware of any potential erroneous readings due to items nearby and the angle / way it is clamped on the wire. Thanks for your post.
Just a quick question for everyone: Do you think that the the two meters clamped so close to each other on the same cable effect each other? What about the position, one being upstream and the other being downstream of the other? What do you think?
Nice Video. The GTC CM100 looks like the BK316. Ken has a point. Can you run some tests with just one clamp meter at a time? They could be interfering with each other. Keep up the good work. Daniel
Thank you mjlorton for the deep dives in instruments. A bit worried about the body of the instrument close to current leads. Would be nice to see if instruments are sensitive to fields. DC should not be too risky but nice to know any sensor is not affected by fields outside the clamp. Another idea to make your setup laboratory like: To be safe only one parameter affecting the readout change at a time. maybe you could build clamp meter "loop" with two 4mm sockets to attach loop current cables on neat platforms. Mayby a "side-by side comparison kit" for two meters to be straped/fixed during demonstration. Maybe current connections on top of kit and voltage connections at the bottom so instruments to compare can plug into either current bar, magnetic loop for clamps or voltage bars. And another one: You could build a multiturn "coil" to for clamp to grab 0,1,2,3,4,5..n wires to prove a 1.000 Amp current step with number of wires clamped and at the same time quickly demonstrate "reclamping" repeats well. It happens I zero the clamp and grab wire after wire and actually opens the clamp gap for each meassure. Really great work!!
I'm a bit bamboozled by your test method. When you compare clamp meters @ about 21:15, you zero the two meters out at different times and under different conditions. The second meter is zeroed out next to the first next to a wire drawing 100mA. Shouldn't you zero them out under the same conditions at least? Perhaps there is a negligible effect, but it seems at little sloppy to a beginner such as myself.
Why does this CEM clamp look pretty much exactly like an MTP clamp? Are they the same? Im looking at getting the "new" MTP ST-337. Which seems to be a new version of this clamp. Hmmmmmm
Has anyone commented on the CE designation on the clamps? The blue one on the left is the European Conformity label and the Yellow one is sporting the (counter-fit) Chinese Export label. You can tell the difference by how close the letters are to one another. I understand that the label means little, however I do not like people to lie or intentionally mislead me. Therefore I rarely purchase products with counter-fit CE markings.
Hello Mr. I am looking for an AC ammeter that will read milliamperes and microamps. Can you suggest me a device with this characteristics that I can buy? thanks,
I think personally, I prefer a clamp meter to be a current clamp meter and not a multimeter with a current clamp. I can't think of a time when I've used the voltage or resistance ranges etc on my clamp meter.
so great that you finally stated the price after 35 minutes, as its so annoying to go thrue a full video where the aspect of price, again and again, is a important factor and you have no way to relate as its an old video and the links are dead and new model likely arrived, and even if you should find links online it can very likely be another price then what was the case with the video and the points in play.. so very important that you get such stuff noted and early in the video so people watching years later' can relate to the points your trying to make. and of course not going to purchase it, way better alternatives to a fraction of the price. went for 2x30 bucks 1x210E or 1xACM91 and just received the 210E and first impressions highly positive and will change the count to 6k and backlight delay to way longer + DC autostart.
There is a fair amount of cost involved in just running a video blog like this...and I need to make a living....so for now, all the advertising is a necessary evil.
@Pulsed Neutrino. You're a true marketing genius. You must work for the Government. They don't have to worry about making a living. Personally, I don't mind it much if it is good information. You can tell he puts a lot of work into these videos. Give him a break. Go back to watching TH-cam cat videos.
What does it matter ? The GTC was doing a fine job. If the CEM had problems with the GTC in his neighboorhood, another point not to buy it. Martin has posts other videos with clampmeters. The CEM sucks, and for the voltage you van use another meter.
adverts at start. adverts on desk, adverts at end. hmm i like your show but as someone who disables and looks away from adverts it feels a little excessive. this seems like something your sponsor would suggest thinking of profit and not watchability. just my opinion but a discrete advert for 2 seconds at start or end is best.
I almost bought the CEM before your video had finished playing - it was doing so well. But that abrupt change beyond 4A to poor resolution and accuracy stopped me in my tracks. Very valuable video test - many thanks.
No worries, I do appreciate the feedback. Cheers, Martin.
His sponsor doesn't even sell the clampmeters i think, and if they do, they wouldn't allways agree with the objectif tests and reviews Martin does in all his videos. The ads doesn't bother me and the sponsor made a good choice, because Martin is doing a good job : the pro's and con's from a product. I don't care if Martin get some good money; his videos are one of the bests on youtube in this branche. He has respect for his viewers and products; we have respect for him.Simple as that. Thumbs up!
its not about a lack of respect its about a good percentage of people who consider 99% of adverts an eyesore/irritant and object to things like having common words, feelings changed in some way to advertise products using daily thought association triggers like many adverts do. i'm pleased for you that you don't mind adverts tho. well done for you.
I bought one of these and I am very pleased with it, the eylet of the clamp is 1/2" dia which will easily fit over the 10mm main battery leads on large cars and light vans. One thing to note is when using it on smaller diametre wires and very small currents the angle of the clamp to the wire has a fairly large effect of accuracy.
Fair comment but I think the effect was negligible. What I will do in a future video is repeat the test to see if it does have any effect and then introduce a magnet and other items (including the meters themselves). We can see and be aware of any potential erroneous readings due to items nearby and the angle / way it is clamped on the wire. Thanks for your post.
Thanks good man...glad it was of value!
Just a quick question for everyone:
Do you think that the the two meters clamped so close to each other on the same cable effect each other? What about the position, one being upstream and the other being downstream of the other? What do you think?
Eu acredito que sofre sim interferência. 👏 Pelo comentário.
Nice Video.
The GTC CM100 looks like the BK316.
Ken has a point. Can you run some tests with just one clamp meter at a time? They could be interfering with each other.
Keep up the good work.
Daniel
Thank you mjlorton for the deep dives in instruments.
A bit worried about the body of the instrument close to current leads. Would be nice to see if instruments are sensitive to fields. DC should not be too risky but nice to know any sensor is not affected by fields outside the clamp.
Another idea to make your setup laboratory like:
To be safe only one parameter affecting the readout change at a time. maybe you could build clamp meter "loop" with two 4mm sockets to attach loop current cables on neat platforms. Mayby a "side-by side comparison kit" for two meters to be straped/fixed during demonstration. Maybe current connections on top of kit and voltage connections at the bottom so instruments to compare can plug into either current bar, magnetic loop for clamps or voltage bars.
And another one:
You could build a multiturn "coil" to for clamp to grab 0,1,2,3,4,5..n wires to prove a 1.000 Amp current step with number of wires clamped and at the same time quickly demonstrate "reclamping" repeats well. It happens I zero the clamp and grab wire after wire and actually opens the clamp gap for each meassure.
Really great work!!
I'm a bit bamboozled by your test method. When you compare clamp meters @ about 21:15, you zero the two meters out at different times and under different conditions. The second meter is zeroed out next to the first next to a wire drawing 100mA. Shouldn't you zero them out under the same conditions at least? Perhaps there is a negligible effect, but it seems at little sloppy to a beginner such as myself.
Why does this CEM clamp look pretty much exactly like an MTP clamp? Are they the same?
Im looking at getting the "new" MTP ST-337. Which seems to be a new version of this clamp.
Hmmmmmm
Hi, can I measure 4 to 20 mA process signal with both meters?
hi mjlorton,
Just wondering do you have the electronics dc load kit you build for sales?
i understand i just thought id feedback. i've been watching your show since you first started out. thanks peace
Qual deles se saiu melhor?
Hi mjlorton.
Maybe you know why my clamp meter some time show mainus(-). what is it mean.
And yea its cheep one.
Has anyone commented on the CE designation on the clamps? The blue one on the left is the European Conformity label and the Yellow one is sporting the (counter-fit) Chinese Export label. You can tell the difference by how close the letters are to one another. I understand that the label means little, however I do not like people to lie or intentionally mislead me. Therefore I rarely purchase products with counter-fit CE markings.
Hello Mr. I am looking for an AC ammeter that will read milliamperes and microamps. Can you suggest me a device with this characteristics that I can buy? thanks,
I think personally, I prefer a clamp meter to be a current clamp meter and not a multimeter with a current clamp. I can't think of a time when I've used the voltage or resistance ranges etc on my clamp meter.
No...just the diagram and parts list as self build.
Where was the teardown?
Thank you again.
if you don't mind looking at spam would you fill out some surveys everyday for a few hours? i could give you a link lol
so great that you finally stated the price after 35 minutes, as its so annoying to go thrue a full video where the aspect of price, again and again, is a important factor and you have no way to relate as its an old video and the links are dead and new model likely arrived, and even if you should find links online it can very likely be another price then what was the case with the video and the points in play.. so very important that you get such stuff noted and early in the video so people watching years later' can relate to the points your trying to make.
and of course not going to purchase it, way better alternatives to a fraction of the price.
went for 2x30 bucks 1x210E or 1xACM91 and just received the 210E and first impressions highly positive and will change the count to 6k and backlight delay to way longer + DC autostart.
That capacitor does look familiar............... Just what this is meant to be used to check as well. ;)
There is a fair amount of cost involved in just running a video blog like this...and I need to make a living....so for now, all the advertising is a necessary evil.
@Pulsed Neutrino. You're a true marketing genius. You must work for the Government. They don't have to worry about making a living.
Personally, I don't mind it much if it is good information. You can tell he puts a lot of work into these videos. Give him a break. Go back to watching TH-cam cat videos.
What does it matter ? The GTC was doing a fine job. If the CEM had problems with the GTC in his neighboorhood, another point not to buy it. Martin has posts other videos with clampmeters. The CEM sucks, and for the voltage you van use another meter.
Ideal for chasing parasitic drain on vehicles.
adverts at start. adverts on desk, adverts at end. hmm i like your show but as someone who disables and looks away from adverts it feels a little excessive. this seems like something your sponsor would suggest thinking of profit and not watchability. just my opinion but a discrete advert for 2 seconds at start or end is best.
jeez, if you're going to watch a 36minute video, who cares about 10 seconds of adverts and a few logos on the desk?
Yes, this time i was the first for 'thumbs up' :-) Good video again, i need a clampmeter.