Zoyi ZT702S Oscilloscope + Multimeter ⭐ Compact & Accessible ⭐ Full Review!

Рет қаралды 15,813

TechCornerTV Electronics, Projects & Tutorials

Күн бұрын

Пікірлер: 42

@Luke-san Жыл бұрын

When you tested the square wave the meter was set to AC, not sure if it would make a difference if set to DC? The internal generator seems to put out a 1KHz so might not show this issue that well. Also like Bob said .. the probes in the test, really surprised that it actually worked. Overall for the price I really like this meter. For quick measurements of dc/dc convertor issues and audio stuff it will certainly help out. Haven't looked if I can actually hook up the scope side to the 230V mains.

@TechCornerTV Жыл бұрын

Hi, with the probe at 10X you can work with 230V to analyze the sine wave, thus I don't recomend it unless you really know what you're doing. If I'm not wrong, you can go up to 400V on the oscilloscope part. Thanks for watching.

@dragan3290 5 ай бұрын

@TechCornerTV I put multimeter probes into the power point while connected to oscilloscope function to measure and look at the sinewave. It works well but I haven't tried this on the ZOYI zt 702s but on my graphing multimeter! As you said on 1:1 probe setup is 40 volt pk-pk? So on ×10 on probes you can measure 240 volt AC? I'm glad you mentioned that and I finally found your tutorial. Because I saw 150 volts pk-pk Max on website, but 40v pk-pk on ×1 on probe. Any reply appreciated cheers from Australia subbed and liked 👍

@CorruptedSpider 10 ай бұрын

Thanks for the video!

@TechCornerTV 10 ай бұрын

Hi there, you're welcome, glad it was useful! Thanks for watching.

@andre1747 Жыл бұрын

To measure resistance, stake connected to the black tip in mA

@TechCornerTV Жыл бұрын

Hi Andre, thanks for the tip and for watching!

@bobb2240 Жыл бұрын

You had the ground lead in the MA. jack ,NOT the COM. jack when testing ohms,caps. and maybe volts-- But I do enjoy your channel.

@TechCornerTV Жыл бұрын

OMG! What a schmuck... 🤦‍♀️how can I not noticed that.... is amazing how it even gave fairly accurate values... I am so sorry and thank you to let me know.... there is so many things going on that sometimes I am a bit distracted, no excuse though, I really sorry for this... thanks again for watching!

@Markus2801A Жыл бұрын

on eevblog a zoyi-zt703s with bigger screen and better specs has been mentioned, but unfortunately it seems that it has not been released.

@TechCornerTV Жыл бұрын

Hi Markus, Sorry the late reply, kind of short in time to answer these days. I think I saw that also somewhere in time, but I don't retain this things... thanks for remind me. It is a very nice device, for me just needed a bit more bw, because in terms of quality itself (finishing, etc) is really good. Thanks for watching.

@denghongcai Жыл бұрын

thanks for your work

@TechCornerTV Жыл бұрын

Hi, it was my pleasure. Glad that it was helpful. Thanks for watching.

@marcoalexandrebianchi2755 6 ай бұрын

Good morning. My name is Marco and I'm Brazilian Your video is very good. I have a question: This ZT702S device, with the oscilloscope function, can I connect it to a computer for measurements, making the computer screen the oscilloscope screen? Another question: can I measure 1mV scale, as I use a lot of load cells? Thanks

@TechCornerTV 6 ай бұрын

Hi Marco, no, you can't. That functionality exists in desktop oscilloscopes, but not all of them have it. Rigol for example allow you to do that, but can't say of all other brands, you can do that for example with the Zeeweii DSO2512G ( kzbin.info/www/bejne/r5mXpGdjd7loY5o ) and also with the DSO1511 also from Zeeweii that have an AV output, I think that in the small factor those are the ones. Thanks for watching.

@typxxilps Жыл бұрын

but isn't it the main question to get this or a decent multimeter and a scope with more bandwith ? You had shown a lot of offers and a usual unity multimeter and a osci might do the job even better for a tiny bit more like 90 or 100€

@TechCornerTV Жыл бұрын

Hi, first and foremost, sorry the late reply, time is really short here for replying. You brought out a very good and valid point. I think the added value is less space in your field toolkit, but with that comes also a lot of limitation, like the bw. As in everything, it's a tradeoff. I review yesterday the Zeeweii DSO3D12 that it is a similiar solution, but keeps the bw at 120Mhz, it migh shake the market a bit. Thanks for watching.

@Homer19521 Жыл бұрын

Surprised you didn't REL on the 10R. Woulda been nice if you shorted the leads before testing low values. I find that cleaning the tips of any manufacturing coatings can help on low R measurements & continuity. My Zoyi came with a bad battery. 😒 It would not charge.

@TechCornerTV Жыл бұрын

HI, sorry for this late reply, I've been really tight on time to reply. That's a great tip! Sorry to hear about the battery, always suck when things don't go as supposed. Thanks for watching.

@yeso8205 Жыл бұрын

square clock waveform is reasonable, because of the bandwidth limitation.

@TechCornerTV Жыл бұрын

Hi, agree with you and thanks for watching!

@GaelSomon 3 ай бұрын

Hello, I just bought the ZT-702S for my association "Repair Café" in France. I have a big doubt about the thermometer. It points to 90C° when I immerse the probe in a pot of boiling water and indicates 17C° in a room at 22C°. In addition, the analog display does not work in thermometer mode. It always displays 0, even when the digital display is at 90C°. Since I do not see how to calibrate it, I wonder if a software update would solve this issue. I have a V1.03.55. However, the instruction manual does not make any reference to the update. I wonder how to find the update and how to process it. Knowing this issue with the thermometer, I also have doubt with the other mesurements : V, A, R.... Do you have a tip please ? As you say that you received it from Zoyi, maybe you have a special contact with them. Thank you very much.

@MohammedAli-mz2vl 7 ай бұрын

Hello please this tool work on cars wiring? Thank u

@TechCornerTV 7 ай бұрын

Hi, there are oscilloscopes like the MigSig that have already some functions for auto diagnose, but this will work great also if you know what you're looking. Thanks for watching.

@MohammedAli-mz2vl 7 ай бұрын

@@TechCornerTV thank u but the oscilloscope line is too small I can't get it bigger

@MohammedAli-mz2vl 7 ай бұрын

@@TechCornerTV there r not video of this tool working on cars

@ZenGroup-k9b 10 ай бұрын

Please review zoyi 703S, and compare with others Osciloscopes like Zeewei

@TechCornerTV 10 ай бұрын

Hi, I will review it. Just waiting for Zotek to send my unit. I got the chinese new year that delayed everything. Thanks for watching.

@georgidandanov 10 ай бұрын

Hi! Maybe you have some impresions about similar product of Aneng AOS02?! Which one is better?

@TechCornerTV 10 ай бұрын

HI, never tested a ANENG product, have here the 683 smart multimeter to test, but regarding this Aneng AOS02 it seems to be the same device, just rebranded, BSIDE also has the same model. Right now it seems to be removed from AliExpress, couldn't find it there using the model code. Thanks for watching.

@Larry-AK0Z Жыл бұрын

What does in the memory depth mean?

@TechCornerTV Жыл бұрын

Hi Larry, let me see if I can give you a clear explanation and don't say anything wrong 😁 memory depth is related also with sampling rate, that is the capacity of the oscilloscope to take samples of the analyzed signal, higher the sampling rate, more samples per second can take, better is the displayed signal. The memory depth is the memory were you can store that samples being captured, so more memory is always better, since you can store more samples and you can analyze bigger portions of your signal. When the sampling rate is higher, normally you will need also bigger memory (depth) to store the samples captured. So there's the relation between the two. Hope it helped, but if anyone else wants to correct or add something, please don't be shy and go ahead! Thanks for watching.

@Larry-AK0Z Жыл бұрын

Great info and video. Thank you!