Really useful review by someone who obviously knows what they are talking about. I bought this unit and had no clue from the instructions how to measure current leakage. Now I do.
I purchased this unit from your link based on your review. I like most things about the unit, especially the excellent DC mA current results. Much better than the GVDA. Three things I don't like is the pathetic flashlight (dim, purple, terrible spill), power cycle forgets your favorite rotation on restart, and the boisterous beeper. I found out the dropper resistor for the buzzer is only 10 ohms, leading to 35 mA beep current! I changed mine to 62 ohm and the volume & power consumption is much more reasonable. This required sliding out the jaws to get to the SMD 01X resistor, some micro soldering, but nothing needed disconnected. On the positive side, there is outstanding voltage accuracy, good capacitance accuracy above 1 nF, and neatly combined diode & continuity functions which is unique for this device. The screen would be better if they used OLED or EBTN for better clarity at both orientations. Oh well, it's a good value and replacement for my UT-210E which started having issues. The build quality is pretty good and the unit has a unique personality and appeal. The color, the big digits and how both jaws articulate smoothly and wide.
Forgot to mention the 268b has special display that can be electronically rotated for either left handed or right handed users. I'm a leftie, and it is irritating that the display is mostly presented upside down.
Your leakage current measurement is incorrect ! You need to clamp the live and neutral wires without the ground wire, otherwise you get always zero current!
I saw on an ad that the display flips 180 degrees. Came back to your review and found out it's true, but not until 23:58. 🧐 Technically, I don't see why ANY clamp meter wouldn't do the "leakage" test? I would consider buying if it had inrush current feature.
Hi Paul, yes I should mentioned that rotating feature early, I'm responding to comments today and is the second one that mention that feature, sometimes I might not give proper credit to a feature, but yes, it is true, it changes according your position to be always on a readable position. Thanks for watching.
When you do A.C. Volts, it would be interesting to see how the device handles a square wave signal with DC offset. By default the XR2206 produces such an output and is what I use. I find different multimeters have wildly different DC, AC, and frequency measurements based on whether the mode blocks DC, uses True RMS, or requires zero crossing for Hz. I feel this would be an improvement over putting the leads into a high voltage socket with a standard sine wave, and would only cost a small amount for the signal generator kit. Of course Hugo has access to much better equipment 😮I’m impressed how low in frequency the unit reviewed here measures and how stable the reading is.
Hi Paul, thank you for sharing this careful comment, really appreciated. Thanks for watching. PS - I have here one of those XR2206 function generators to assemble on a video and don't get the time to make it! I have to solve that somehow 😁
Why not? A DC circuit may also have zero and ground, and so leakage. Not a typical scenario for an electrician though. :) However, the way DC leakage is measured in the video is completely wrong. First, there is no leakage to begin with. :) The device shows the net result of the two wires placed incorrectly and the change in the position of the meter (effect of Earth's magnetic field) after it had been zeroed.
Ola Hugo, gostaria de deixar umas ideias para te ajudar nos testes de corrente alternada, podias usar um auto-transformador a controlar um transformador potente (ex.: aqueles das lâmpadas de halogéneo de 12v) em curto-circuito no secundário onde estaria a pinça "aka teste em curto", ou em alternativa, usar um mais fraco mas enrolar por ex. 10 voltas na pinça, com este setup podes fazer testes muito mais corretos e controlados, pois ainda tens a vantagem de poder medir a corrente no secundário através do "mult. siglent" para obter valores bem precisos. O setup que montaste não é ideal devido à natureza do funcionamento das fontes comutadas como bem deves saber a corrente absorvida à rede não é propriamente sinusoidal, e pior ainda se não tiver correção de fator de potência "pfc". Uma opção mais simples mas mais "perigosa" seria usar lâmpadas incandescentes e/ou resistências/aquecedores elétricos. À parte disso queria-te dar os parabéns pelo canal, apresentas e explicas bem num tom agradável e relaxante :) um abraço.
Olá Tiago, muito obrigado pelo teu comentário, longo e cheio de informação útil. Eu acho que ainda tenho ai lâmpadas incandescentes, aliás tenho mesmo daquelas tipo edison, que vou utilizar nos próximos testes. Agradeço mesmo os comentários, ajudam a melhorar sempre o trabalho que apresento. Obrigado por assistires.
Hi, the reference boards don't have energy on them, never, even so, on future videos I will short the capacitators before making the tests, just to be sure. Thanks for sharing and watching.
Excuse me for being blunt but I must say that your method to measure AC and DC current is flawed. Let me elaborate: DC current: After zeroing out the meter's inherent offset and Earth's magnetic field you MUSTN'T move the clamp meter. An ever so small change in its position results in a change in the detected magnetic field of the Earth and the measurement will be false. Depending on the meter and the environment the error may be tens of milliamps or more. You don't have to care when you are measuring several amps but in the milliamp range the error may be big. Leakage current: The two wires must be as close to each other as possible and in the center of the clamp so their magnetic fields exactly cancel out as seen by the Hall sensors (DC) or the clamp (AC). In the video they are not. That's the reason you are measuring several milliamps of leakage current where there actually is none. Maybe that's the way you simulate leakage current but it doesn't demonstrate reliability and accuracy of the device. What I expected to see but haven't learned from the video is how reliable leakage current measurement is when the bundled pair of wires is not centered in the clamp. This is the source of errors in cheap clamp meters.
Hi, I'm also very blunt, don't worry. Truth always, it is always better to know the truth and not sugar quoted. Regarding your comment, I'll take in consideration your suggestion for the next videos, thank you for your comment and the time you spent on it, really appreciated.
Translate to English: The Leakage Detection function is the most interesting one of this clamp, but it doesn't work very well with my tests. I have been able to compare it with another more professional and also much more expensive leakage detection clamp, and the values that this WinApex clamp offers are very incorrect and unreliable. Furthermore, they are not very stable.
Hi, unfortunatelly I don't have another clamp here with the same feature to compare the results, but I trust on what you're saying. Thanks for sharing and for watching.
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Really useful review by someone who obviously knows what they are talking about. I bought this unit and had no clue from the instructions how to measure current leakage. Now I do.
I purchased this unit from your link based on your review. I like most things about the unit, especially the excellent DC mA current results. Much better than the GVDA. Three things I don't like is the pathetic flashlight (dim, purple, terrible spill), power cycle forgets your favorite rotation on restart, and the boisterous beeper. I found out the dropper resistor for the buzzer is only 10 ohms, leading to 35 mA beep current! I changed mine to 62 ohm and the volume & power consumption is much more reasonable. This required sliding out the jaws to get to the SMD 01X resistor, some micro soldering, but nothing needed disconnected. On the positive side, there is outstanding voltage accuracy, good capacitance accuracy above 1 nF, and neatly combined diode & continuity functions which is unique for this device. The screen would be better if they used OLED or EBTN for better clarity at both orientations. Oh well, it's a good value and replacement for my UT-210E which started having issues. The build quality is pretty good and the unit has a unique personality and appeal. The color, the big digits and how both jaws articulate smoothly and wide.
Forgot to mention the 268b has special display that can be electronically rotated for either left handed or right handed users. I'm a leftie, and it is irritating that the display is mostly presented upside down.
Hi, thanks for bringing that up, I though I did mention that feature, you're totally right on your observation. Thanks for watching and commenting.
Your leakage current measurement is incorrect ! You need to clamp the live and neutral wires without the ground wire, otherwise you get always zero current!
Hi, first, sorry fo this so late reply. I'm trying to catchup with all comments. Thank you for watching and for the crutial tip, really appreciated.
I saw on an ad that the display flips 180 degrees. Came back to your review and found out it's true, but not until 23:58. 🧐 Technically, I don't see why ANY clamp meter wouldn't do the "leakage" test? I would consider buying if it had inrush current feature.
Hi Paul, yes I should mentioned that rotating feature early, I'm responding to comments today and is the second one that mention that feature, sometimes I might not give proper credit to a feature, but yes, it is true, it changes according your position to be always on a readable position. Thanks for watching.
Great review, thanks!
Can you advise where can be downloaded manual?
When you do A.C. Volts, it would be interesting to see how the device handles a square wave signal with DC offset. By default the XR2206 produces such an output and is what I use. I find different multimeters have wildly different DC, AC, and frequency measurements based on whether the mode blocks DC, uses True RMS, or requires zero crossing for Hz. I feel this would be an improvement over putting the leads into a high voltage socket with a standard sine wave, and would only cost a small amount for the signal generator kit. Of course Hugo has access to much better equipment 😮I’m impressed how low in frequency the unit reviewed here measures and how stable the reading is.
Hi Paul, thank you for sharing this careful comment, really appreciated. Thanks for watching. PS - I have here one of those XR2206 function generators to assemble on a video and don't get the time to make it! I have to solve that somehow 😁
How can there be leakage on DC?
Hi, thats a good question that goes behind my knowledge. Maybe someone here can help. Thanks for watching.
Why not? A DC circuit may also have zero and ground, and so leakage. Not a typical scenario for an electrician though. :) However, the way DC leakage is measured in the video is completely wrong. First, there is no leakage to begin with. :) The device shows the net result of the two wires placed incorrectly and the change in the position of the meter (effect of Earth's magnetic field) after it had been zeroed.
Ola Hugo, gostaria de deixar umas ideias para te ajudar nos testes de corrente alternada, podias usar um auto-transformador a controlar um transformador potente (ex.: aqueles das lâmpadas de halogéneo de 12v) em curto-circuito no secundário onde estaria a pinça "aka teste em curto", ou em alternativa, usar um mais fraco mas enrolar por ex. 10 voltas na pinça, com este setup podes fazer testes muito mais corretos e controlados, pois ainda tens a vantagem de poder medir a corrente no secundário através do "mult. siglent" para obter valores bem precisos. O setup que montaste não é ideal devido à natureza do funcionamento das fontes comutadas como bem deves saber a corrente absorvida à rede não é propriamente sinusoidal, e pior ainda se não tiver correção de fator de potência "pfc". Uma opção mais simples mas mais "perigosa" seria usar lâmpadas incandescentes e/ou resistências/aquecedores elétricos. À parte disso queria-te dar os parabéns pelo canal, apresentas e explicas bem num tom agradável e relaxante :) um abraço.
Olá Tiago, muito obrigado pelo teu comentário, longo e cheio de informação útil. Eu acho que ainda tenho ai lâmpadas incandescentes, aliás tenho mesmo daquelas tipo edison, que vou utilizar nos próximos testes. Agradeço mesmo os comentários, ajudam a melhorar sempre o trabalho que apresento. Obrigado por assistires.
When measure a capacitor you should discharge it to have a more accurate capacitance value
CAREFULLY discharge it. :P
@@ElectroAtletico those are small capacitance capacitor so it can simple short there two pin :)
Hi, the reference boards don't have energy on them, never, even so, on future videos I will short the capacitators before making the tests, just to be sure. Thanks for sharing and watching.
I wish it had inrush current as well
Hi, thanks for watching and sharing!
Познавательно. Особенно в части на постоянном токе - видна погрешность. На переменном немного не понял когда смотрел.
Hi, thank you for your nice comment and for watching.
Excuse me for being blunt but I must say that your method to measure AC and DC current is flawed. Let me elaborate:
DC current: After zeroing out the meter's inherent offset and Earth's magnetic field you MUSTN'T move the clamp meter. An ever so small change in its position results in a change in the detected magnetic field of the Earth and the measurement will be false. Depending on the meter and the environment the error may be tens of milliamps or more. You don't have to care when you are measuring several amps but in the milliamp range the error may be big.
Leakage current: The two wires must be as close to each other as possible and in the center of the clamp so their magnetic fields exactly cancel out as seen by the Hall sensors (DC) or the clamp (AC). In the video they are not. That's the reason you are measuring several milliamps of leakage current where there actually is none. Maybe that's the way you simulate leakage current but it doesn't demonstrate reliability and accuracy of the device.
What I expected to see but haven't learned from the video is how reliable leakage current measurement is when the bundled pair of wires is not centered in the clamp. This is the source of errors in cheap clamp meters.
Hi, I'm also very blunt, don't worry. Truth always, it is always better to know the truth and not sugar quoted. Regarding your comment, I'll take in consideration your suggestion for the next videos, thank you for your comment and the time you spent on it, really appreciated.
@@TechCornerTV Thank you, I'm looking forward to your next videos.
можно ли отключить функцию спящий режим?
Translate to English:
The Leakage Detection function is the most interesting one of this clamp, but it doesn't work very well with my tests. I have been able to compare it with another more professional and also much more expensive leakage detection clamp, and the values that this WinApex clamp offers are very incorrect and unreliable. Furthermore, they are not very stable.
Hi, unfortunatelly I don't have another clamp here with the same feature to compare the results, but I trust on what you're saying. Thanks for sharing and for watching.
WINAPEX 268B 600mA-60A