New 2ch pocket DSO+SG - Zeeweii DSO2512G

[wasedadoc]

can't save XY mode

Neither can its close relative, the Zeeweii DSO3D12.

[Aldo22]

can't save XY mode

True.
With an AV capture card you can take a screenshot on the PC.
However, the image is slightly blurred.

[pawol]

@marcs18
I got the same issue but in my case it was my fault. I overloaded by high voltage input 1 of DSO2512. I had to replace GS8091 opamp which I found on aliexpress ($4 for 5 pieces of GS8091 including shipment).
Temporarily you can use 8091 removed from signal generator circuit.

https://pl.aliexpress.com/item/1005005629917770.html?spm=a2g0o.order_list.order_list_main.5.61ab1c2463OJzt&gatewayAdapt=glo2pol

[pawol]

Many thanks to @timschuerewegen and his discord
Now I am happy user of hw ver9.14 and his 1.3.0c mod

[Sham73]

Hello, does the subject have a digital zoom function and an external trigger?

[Aldo22]

Hello, does the subject have a digital zoom function and an external trigger?

digital zoom: Yes
external trigger: No, I think that's rather rare with cheap handheld oscilloscopes. 

[BillyO]

It seems that at best this scope is just a DSO3D12 without the DMM built in, a smaller screen and missing a few minor features and is yet only about $9 less.

Given that, what is the compelling reason to buy this over the DSO3D12?

[Aldo22]

It seems that at best this scope is just a DSO3D12 without the DMM built in, a smaller screen and missing a few minor features and is yet only about $9 less.

Given that, what is the compelling reason to buy this over the DSO3D12?

The two are very similar, but the DSO2512G has at least two advantages:
- It has a video output, which I find very handy for recording videos without a camera and/or enlarging the small screen with a monitor.
- It has a 10MHz (sine wave) signal generator vs. 2MHz on the DSO3D12.
- It also has a rubbery holster and is a little smaller afaics. You can put it on the air filter of a running car engine without hesitation. It wouldn't fall off.

Maybe there are more differences.

[BillyO]

It seems that at best this scope is just a DSO3D12 without the DMM built in, a smaller screen and missing a few minor features and is yet only about $9 less.

Given that, what is the compelling reason to buy this over the DSO3D12?

The two are very similar, but the DSO2512G has at least two advantages:
- It has a video output, which I find very handy for recording videos without a camera and/or enlarging the small screen with a monitor.
- It has a 10MHz (sine wave) signal generator vs. 2MHz on the DSO3D12.

Maybe there are more differences.

Well that video out is a clear advantage.

The generator on the DSO3D12 will do 5MHz sine, 2MHz everything else.  But, 10MHz is a bit better.

Thanks.

[Sham73]

digital zoom: Yes
external trigger: No, I think that's rather rare with cheap handheld oscilloscopes. 

Thanks

I'm interested in a couple more questions.  First: Is it possible to use xy-mode to determine the in-circuit health of components, as an analog oscilloscope can do with the help of a small add-on?

[Aldo22]

I'm interested in a couple more questions.  First: Is it possible to use xy-mode to determine the in-circuit health of components, as an analog oscilloscope can do with the help of a small add-on?

I don't know about "in-circuit", but this video shows how to use the XY mode of the Zeeweii to test components:
https://youtu.be/kEuixDsiCW0?t=1550

[chemary]

It seems that at best this scope is just a DSO3D12 without the DMM built in, a smaller screen and missing a few minor features and is yet only about $9 less.

Given that, what is the compelling reason to buy this over the DSO3D12?

For my the major reason to buy it vs the DSO3D12 was the form factor, I already have a better oscilloscope and a better DMM so I just wanted an small and portable oscilloscope. In your case if you are not concerned about it's bigger size it may be a better option.

[Sham73]

I'm interested in a couple more questions.  First: Is it possible to use xy-mode to determine the in-circuit health of components, as an analog oscilloscope can do with the help of a small add-on?

I don't know about "in-circuit", but this video shows how to use the XY mode of the Zeeweii to test components:
https://youtu.be/kEuixDsiCW0?t=1550

Thanks for the link. I watched this video.  True, the serviceability of the parts is not determined in-circuit. There are several Russian videos about in-circuit determination of the serviceability of parts for the XY mode using a homemade attachment. But everywhere we talk about analog oscilloscopes. I wanted to find out whether it is possible to determine details using such a digital 2-channel device or not.

[Aldo22]

I wanted to find out whether it is possible to determine details using such a digital 2-channel device or not.

I'm not an expert, but I don't see why there should be a difference between digital and analog in this case. They just measure voltages.
The problem is probably more with the "stimulus" and the probes.

Perhaps an SMD tester like the Mastech MS8911 would be suitable?