Been kicking around idea of getting a pc based o-scope to keep in my tool box. My first ever was one that connected to a SoundBlaster Pro sound card. Have had a few over the years (portable pc based).

Came across this apparent jewel at Amazon.
To my eye, looks like a winner.
Amazon Share-Link, nothing nefarious beyond screwing up your looked at history.



Thoughts?

SD

Depending on what you intend to do with it, can be a good choice or not.
From my experience, if it's just for occasional DIY or the like, it's good enough.

If you want something slightly better, WITH after sales service, but without making a hole in your pocket,
my advice falls on HANTEK. Plenty models to choose from.

For the best PC stuff, if you have the budget, PICOSCOPE would be my choice.

Nuno T.

Intended purpose is to look at waveforms / triggers of IGBT and their drivers on a 118KW aux pwr supply fed by 800vdc.

Cost is a factor, I can see losing an IGBT & Driver violently and taking out whatever may be connected. Waveforms to actual IGBT are max 30vdc, so can use HV probe to a point. It is not uncommon for flash to occur across isolated area and blow out what has been connected.

I did look at reviews, saw calibration comments.

Needing something... disposable that can still capture pwm down to fractions of a ms.

~SD

I was looking at Hantek. Their 8 channel would be sweet but sampling falls off quickly and also appears to be geared around automotive environments.

~SD

I have that model. Amazing performance for the price.
I seldom use it since I have regular bench oscilloscopes except for when there is no power available or I do not want the headache of moving a regular scope.
Bertho

I do similar stuff.

I use a good quality bench scope, and a separate, reliable, HV probe: MICSIG.
In my case, devices under test can be, and are, transported to the test bench,
where all safety precautions are readily available and in place.
118kW sounds far above anything I've ever come across. I suspect my setup would not be up for that...
I would be ok with the 800V in the test equipment.

(yes, I can see the comments from a lot of guys: "YOU'RE GOING TO BE FRIED ALIVE!")
I think I'm in a position, as well as Sheldon, by the looks of it, where we can say:
"we know what we are doing, and know the risks involved. We are professionals at it, not DIY's"?

I agree with your perspective. A discard able one sounds like a good idea.
If the calibration thingy doesn't worry you, then yes. I would by that model you pointed.
After sales service doesn't seem to matter, considering their life expectancy... :D

Nuno T.

开云体育

>> To my eye, looks like a winner.
>> Amazon Share-Link, nothing nefarious beyond screwing up your looked at history.

开云体育

Any indirect link is nefarious. Trust me. They (Amazon) now knows where I got that link, and who you (Sheldon) are, when you looked at the product, what your (and now my) computer model, operating system, browser and likely other info are. (Try for more. In particular, try looking a the "More Info About Your" button.)

So here is the unadulterated, direct link.?

The product is described as "FNIRSI 1013D Plus Oscilloscope - Portable Handheld Tablet Oscilloscope with 100X High Voltage Probe, 2 Channels 100Mhz Bandwidth 1GSa/s Sampling Rate 7" TFT LCD Touch Screen" for anyone who might want to look for a different vendor without Amazon watching your browsing history.

This is all getting VERY afar of electronics, so this is my absolute last comment on this thread.
Donald.