Hantek vs OWON current clamp
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- čas přidán 17. 05. 2019
- This is a first look of the OWON CP-05+ current Clamp and I compare it to the Hantek CC-65 current Clamp. These current probes are two of the low cost current probes on the market.
Hantek CC65 link
amzn.to/2PphfMs
Owon CP-05 link
amzn.to/32ROqwc - Věda a technologie
hello Eddie, great comparison. I believe that many other people also had problems with the owon clamp meter and complained. because owon now has a new clamp meter on the market, the "upgraded CP024". maybe it would be interesting to repeat the comparison. I, and probably many others as well, would be very happy to see that. thank you very much, your work is very insightful.
Thank you! I think their problem was with this device is quality control. They probably found another manufacturer to work with. I find their other equipment to be quality made. I'll have to get the new one - but I have to sell some equipment before I buy more;)
Great video thanks for sharing I just order hantek .I was going the get something more expensive like otc low amp clamp.but I think I will save my self some money
I think the Hantek is a great low cost option. I'd say the Micsig would be the next level up, but then does cost more too;)
Excellent video. Do you still consider the OWON CP-05+ Clamp Current a BAD clamper? (low current, 0.2A to 2A)
Would it be possible to do a sweep of the response of the actual hall element from the OWON unit and potentially do a project where you make your own amplifier etc?
Peter Mitchell That’s a great idea! I’m going to try to fix this thing first, but I’ll see what I can do when I get time to work on this - which I’m chomping on the bit to do;)
Great review, we were wondering at our lab how this owon probe performed, now we will stay away from it
Thank you! Yes, I’m not sure what’s going on with Owon. Great prices but just fall short.
Hey Eddie.....if it was a week late being delivered, then that week is not counted towards that month. Also, if you go on Help, and then Chat, i have found them being a lot more lenient and helpful. Cant hurt to try....especially if its not fit for purpose. Thanks for the video....hope you are lucky!
Thanks - I’ll try again. I love amazon, but after 30 days the options for the item purchased changed where it seems impossible to complain about a purchase directly.
Very interesting video - I just ordered the Hantek current probe, and I am interested in how you set up your FRA on that scope. I have a RIgol MSO5074 and was looking for a similar function, but no FRA there. There is a Bode analysis, which I am thinking is the same thing. I have just a hobby level electonics background, and the bode plot "tips" on my scope show a much more complex diagram than the Instek showed. Can you provide any more detail on how you connected your scope to do that analysis? THANKS!
Replying to my own comment, I now realize that your scope is an MDO (not an MSO), so it likely has more capabilities than mine, so I may be chasing my tail here!
Thank you! Yes FRA (Frequency Response Analyzer) is the same as the Bode Analysis on your scope. There will be 2 curves, one is for the gain and the other is for the phase. The gain is the output voltage divide by the input voltage, but then it is plotted typically in dB, so that's when you take the log of the Vout/Vin and then multiply that by 20 so (20LogVo/Vin). Here's a link to another video; czcams.com/video/HPumQ83bgb4/video.html
@@KissAnalog Thanks for the video link. I watched that one, and REWATCHED this one on the current probes. I must have skipped over the setup portion the first time I watched it, as I now see how you connected things. Voltage measured with channel 1 and current clamp on channel 2, and the function gen is running at 2v amplitude. With your 20ohm resistor, you would be getting 200mA right? Are the function generators built into these scopes capable of sourcing that current? That is a spec I have been unable to find for my scope yet. I will try this out when I get my Hantek clamp tomorrow!
Love my Hanteck, accurate, reads millamp and up to 65amps, can see if on AC circuit amps is leading lagging voltage (power factor).
Using on my new awsome Rigol 1054Z hacked to 100mhz
I agree - the Hantek is great and really awesome at the price!
So what is the minimum milli amp that the Hanteck can handle ?
Hi Eddie, the owon clamp has a larger radius, could it be that’s because it’s designed for thicker wires and larger currents? Still, no good for your application.
What would be the proper way to measure the current without a current clamp, is there some probe that you can put in series? Or do you just use a resistor and a differential probe or two channels?
No actually I have used an instrument that used various current probes and one was a large loop that was meant for high current (2000 amps), but still worked great for small wires down to about 0.5 amps.
Thanks for asking! Great question!
Kiss Analog thanks for answering. Assuming you would not invest in a current clamp, how would you measure current then? Resistor in series and two scope probes would certainly work, but is there an easier way? Forgive me, I just recently started tinkering with electronics and all I know is very basic stuff from 20 years ago.
Krmpfpks Yes a resistor would be the way to go. I’m going to do a demonstration and explain the way to do it accurately. Thanks for the question!
A most excellent video. 🥳 I am looking for a non-contact 3-phase [A-B-C] 2,300VAC motor rotation indicator. All the units seem to be 600-700vac. Do you have any suggestions on what to do? Since it is used on 2300vac 1,000 hp motors safety is an issue. Also, is there a way to modify the instrument's three 600 volt clamp on probes or make something from scratch? 😎Thank you.
Awesome questions!! Let me get back to you on this - it is probably worth a video;)
Thank you, our company would like to buy one. @@KissAnalog
i bought a hantek-65 and it came w/bad switch,kinda got the runaround from amazon on it . so i bought n otc for about 100 bucks i think , good for automotive use. then repair hantek ,so i ended up with 2
Sorry that you had that trouble Henry. What was the second probe that you purchased? Do you like it? Does the switch stick or just doesn't work? Thanks for the feedback!
Hi Eddie,
How this story is ended? Is it genuine or not, maybe refurbished badly, did you return it?
Sasha. Djordjevic I think it is genuine - just poor quality! They offered to give me $30. They didn’t want to have it returned. I think I’ll trouble shoot it for a video...
Nice video..
Thanks!
Wow I was going to order the Owon over the Hantek because I thought I should get something a little more expensive than the Hantek. I will stick with buying the 65 dollar Hantek. Just ordered the Hantek for 56 dollars on Amazon.
Great choice I think! I am so disappointed in the Owon! I have it in a box still and will see if I can fix/modify it soon - that should be a useful video;)
what would be the best scope clamp for amps at 200kHz ?
I think this is a great one. czcams.com/video/rC-S8WdfW0g/video.html
In what position do I need to put the oscilloscope for correct readings СP-05+ in 1X or 10X?
That is a great question! On the 4 Amp scale, set to 10x, then 100X and 1000X for the next two. How do you like this probe? Mine has problems so I'm going to try and improve it on a video. Glad to hear from you. What country are you in?
@@KissAnalog Thank you for the answer and thank you very much for the quick response. :-) I just started working with this probe and so I haven't made any opinion about it yet. But in any case, I believe that the price should be half as much. I am very interested in your results on improving the performance of this probe. I'm from Russia. My mail ars-sec@mail.ru. With great respect, Igor Litvinenko.
Thank you Igor - I appreciate you! My girlfriend's family (or part of it) came from the Ukraine and my grandfather came from Finland - so maybe not too far away:)
I'm going to have to pull that project out and see if I can improve that performance. I agree - if the price was half - it would be a much better deal.
@@KissAnalog The most beautiful girls from Ukraine and Poland!!!
I agree;)
i wanted one of those for auto diagnostics so i only had to carry one probe around.
Thanks Kathy! What kind of scope do you use?
it's a shame you can't return it.
perhaps inform the Owon Dealer about the defective operation? And attach a photo from the inside ?
They finally refunded me $30 which still means I paid close to double what my Hantek cost me - and it is much better probe!
Hi Eddie.
Have you tagged this video with the current clamp meter? ETCR007AD
as when just searching for that model name without any info about clamp or current .. your video here' is the first that pops up.
likely because it is tagged with this current clamp model name? though I cant see that model are in the video.
it's this model.
en.etcr.com.cn/product/info?id=764
anyway' maybe you can help.. just received this unit today and the performance looks almost defective from my rookie perspective.
as you cant make out the current waveform and the noise is unreal.
a brief video, where I used the way cheaper Hantek CC65 as a reference and also the same settings.
i.imgur.com/Cj2B5AJ.mp4
It does take the Amp-reading to some extent, but the current waveform is all over the place. ?
Im a noob on this matter, so maybe something I misunderstood something fundamental.?
short video clip.
It's the same without the Hantek and when I go out of lowpass, you can see how the noise, while I'm in full scope-bandwidth on the Hantek..
meeh, maybe it's simply how it is with low powered signals and I was spoiled with the 38USD Hantek CC65 performance, as the ETCR 007AD is quite a bit more expensive with +32% more but here with an AC toaster, it does look fine on AC and some wattage behind.
czcams.com/video/OH0gfz7I9Bw/video.html
It is labeled as max 60A - 1mA res and 100Khz
but the noise is unreal like 10 to 1 in regards to Hantek CC-65 (CC65's 50mA floor is reached already at 500mA on ETCR 007AD)
Thanks Jakob! Nice video! No I didn't know about the ETCR probe. I wonder if I should get one to test? Thanks for the info!
On the owon run math FFT to maybe see what the messy wave makeup / harmonics / etc is.
Thanks - that’s s great idea!
@@KissAnalog yes, looks like noise but who knows, I will stick with my Hanteck, I considers the Owon but price was the deciding factor and amazon reviews wee good. I do power quality studies for data centers, that requires analyzing in detail amps and voltage issue and harmonics / ringing and more power issues that can impact reliability. Issues cv ommonly occure when utility power fils and data center switches to battery for 5 min or less as genarators spool up and match frequencies (a challenge with as many as 55 one megawatt generator sets spool up and all match sine waves for a soft transfer to Gens all in less then 5 minutes... Under full 55 mega watt load... Biggest I've worked on had 55 one mega watt generators (20 cylender CAT diesel engines with 4 turbos are burning close to 300 gallons of diesel fuel per generator at idle, no load, definetly a big pucker factor that it all works reliably every time and did not blow up..!).
We had something like 200 pqm meters recording continuously during a day of testing. Lots of data to look at LOL.
Wow - it sounds like you have some great experience! Thanks for sharing that!
I’ll try to see if I can repair this thing, or maybe reverse engineer it;)
the worst purple fuzz is which one pls ??
The Hantek has been great! What do you mean by purple fuzz? Thanks for your question.
@@KissAnalog on ur osc,,, one is purple fuzzy trace,,, is that hantek65,,, got mine now,,, pretty ok ,, my scope shows pp and rms,,, numbers agree w hioki and kyoritsu clamps.... very informative current graphs finally on scope,,, now only final question is,,, how much more details are we not seeing,,, one can never see the full truth,,, only bits at a time,,, sigh,,
Hi Eddie,
Sorry to hear about the lost money, being disappointed 😥
That Owon probe doesn't look genuine, there packaging is far better than that, normally.
I would contact Owon / Lilliput directly and get them to confirm if it's for real.
When I get new toys, I check them within a couple of hours of the postman delivering it.
Especially over 50 bucks. The Owons price point would be great if it had worked correctly.
ATB Adam
Adam L thank you! I’ll open boxes right away in the future;). That’s great advice - I hope OWON isn’t producing this level of quality in their probes. Especially when, I think, that they are being branded.
@@KissAnalog
Hi Eddie,
Just been looking at product website, looks to genuine.
Are you sure you cannot return the product ?
It's not fit for the purpose.
You returned the questionable 14 bit scope, not so long back, I noticed Farnells stop selling Owon scopes a while back.
ATB Adam
That’s great feedback! I purchased the scope directly from OWON, and they were actually great to work with! Amazon is usually great, but once the 30 days are up, the options provided in purchase history change. There’s really no way to directly send a message linked to the product. I sent one to the open customer service but have had no reply. I also sent the seller a message but no response. I hate to bash a company, but I’ll tell it the way it is. I hope to help others and am not the passive type. Not to be mistaken being nice to being weak. ;)
@@adaml52 Yes I was in touch with the seller and they did give me a 20% discount:/
👍👍❤
Thanks!
I just got pointed to this video so sorry for the late reaction... the FRA measurement for the Owon is done wrong. The Owon is way less sensitive (10x) compared to the Hantek and it has a higher bandwidth and thus more noise (this has to do with how a typical HAL sensor works). If you look at the signals used during the FRA measurement you'll see there is only noise coming from the Owon probe. There isn't enough current flowing through the Owon current probe to get a good reading. In general when doing bode plots: a weird phase jump is a dead giveaway that there is something wrong with the measurement setup. The amplitude is too small to measure the phase properly. I tested a CP05A current probe using much more current so there is a signal work with and it turns out it has the -3dB point at 240kHz without any weird phase jumps.
Thanks for the feedback Nico! You are correct that if there were a 10x difference then this would affect the signal to noise ratio and could account for the extra noise.
But, the Owon's lower two scales actually match the Hantek's two scales. The Owon does have the 3rd scale which is 10x higher than the 2nd. If you watch at 15:17 you will see how the scope is set for each probe at the same 10x setting and the readings on the scope match in level. I was using a 20 ohm resistor with a 2V signal, so the readings were showing 100mV which is correct.
What's confusing is the scales on each are shown differently, but they are the same: the Hantek shows 1mV/10mA for the lowest scale, so 100mA would show a 10mV; the OWON shows 100mV/1A, so again, 100mV would show 10mV. So I used 10X to bring this back to 100mV.
Ironically, the OWON claims 1mA to 400A at 200kHz but the Hantek claim 20mA to 65A. I figured the Owon 1mA was incorrect, and the Hantek 20mA more believable. Looking at the Owon spec, it is interesting that they change the way they call out the ranges and the bottom two are actually called out the same way Hantek calls theirs out (4A: 1mv/10mA, and 40A: 1mV/100mA, and then the Owon has the additional range 10x higher, 200A-400A: 1mV/A.
During the sweeps - you can see the waveforms in the window on top, and around 12min you can see that the OWON does show a high noise content. But I think you are right in that the signal is so low that the Owon is not happy. It is definitely out of spec, and might be better with higher current, but it was disappointing.
I will do a new video where I will attempt to make it better and will do a before and after. I'll run it at different current levels to see how it performs;)
Bummer. I don't know what consumer law is like in the US but here in the UK (EU) you would have 2 years to get that sorted or refunded, especially if it's not fit for purpose, and never mind 'returns policy' small print! For any UK viewers, CPC have some deals running on clamp meters in their bargain corner - cpc.farnell.com/test-equipment-bargain?ICID=Bargain-Test-Equipment#multimeters-clamp-meters. Mostly Tenma, which like the Hantek and Owon, is a rebranded generic item from China but they also have a Fluke - of course Fluke and 'bargain' is a bit of a relative term but you could buy with confidence. I'd be happier buying Tenma from the likes of Farnell than I would anything except a major brand from Amazon - that place is packed to the gills with cheap and nasty these days, to the extent its often impossible to find the quality items from the thousands of identical-yet-different-brand rip off junk.
That soldering is no better than my first attempt at picking up a soldering iron - at least I had an excuse. Genuinely gutted for you Eddie.
Thank you - I really appreciate you!
I’m looking at your link and finding some interesting things! Thanks!
It sounds like you folks on the other side of the pond have better protection! I’ll keep you posted on how this turns out.
Thanks No Owon for me 🤢 , But Maybe it helps i you use average on the scope to reduce the noise Fred
Bert van Lelieveld Good call Bert! I actually tried a few things off camera and you are right that averaging is better, but not a bunch. It is just a so so probe. The quality is very questionable! I’m going to attempt to make it better in a video coming to a theater near you.
maybe one day you will review the ETCR007AD :)
I think I might;). Thanks for the idea!
I picked up a ETCR007AD from aliexpress a year ago and it is pretty noisy just like the OWON in this video. Not worth buying in my opinion. I cracked it open and the PCB is pretty sad, missing more than 75% of the components and the two lone IC's that are populated have the ID markings ground off.
dot_bob Wow -thank you for sharing this. I am so surprised that a Owon would have such poor quality control! I will post a video soon, hopefully showing me how to improve this or read design the circuitry to make it better.
@@dot-bob Ok thanks for sharing the info.
@@dot-bob So in your opinion does the hantek one provide the best bang for buck out of the three?
Hantek ht leads come with the Autel maxiscope
Thanks - I'll have to look into that!
Why not throw the Micsig into the mix? It would make me feel good if the Micsig outperformed since I bought a bunch of them.
Wow! That's really ugly construction!
I just realized that this video is 2 years old!
Thank - great question! Here’s a video with the Micsig; Current Inrush Measurement Hantek vs Micsig czcams.com/video/OJVGqGjKl6o/video.html
Of course, your scope has appeared to be stupid enough to account hantek's output noise as signal.
Good review!!! Shame of owon... Thanks!!!
Fernando Lagomarsino Thank you Fernando! I’m going to try to fix this thing and do a follow up video. I like the bandwidth that it has!
I may come across like a smug smartypants now, but I will take that risk, for my conscience is clear; I only want to help, not preach.
Firstly, I wish you luck in returning the OWON. In my experience it is impossible, but US laws may protect your interests better.
Your email may get no reply from Amazon or a robot-response. Write a stinker of an app review in Google Play Store, they will react to that, but it will die after a few soothing noises. I hope YMMV, but let's assume Amazon care equal number of figs for Indian & US laws. My suggestion on how to make the best of a bad situation :
Trace the circuit diagram of the OWON, esply the input. Compare it with the Hantek and the performance with other OWON reviews (I too will search & revert) It seems that there might be some dry solder causing the noise. And a missing/extra cap causing the phase-shift. I daresay it will be time well spent if you do a repair video on the OWON.
If we just wanted to hear that a $65 gizmo is gaaabij compared to a $175 cousin, we would still be watching the EWWWW-blog.
Shall we roll up our sleeves & do something cool instead of adding to the hot air like the..... Ooops. I'll go quietly, guv.
CZcams has no other review of the OWON CP-05+
Not even Google. Well, there are a couple, but the gizmo does not look the same.
Thank you - I really appreciate your support!
I’ll keep you posted. I think I’ll try to reverse engineer this thing. That’s a great idea to compare the two circuits. I hope to make both products better! I like this challenge!! Great idea!!!
Wow. What a disappointment that must have been. Maybe contact PayPal I know the offer longer return dates on ebay. 90 days
Thanks - I’ll look into it. Also I used my American Express and the are great at helping settle issues. I’ll keep you posted.
@@KissAnalog Yes follow that up for sure. $175 for that its just not right. What about warranty surly this does not meet the specifications and you showed how poor the quality was..... Good luck
Thanks - I’ll keep you posted on what response I get back.