Products > Test Equipment
New 2ch pocket DSO+SG - Zeeweii DSO2512G
ptluis:
--- Quote from: Aldo22 on September 30, 2023, 01:43:30 pm ---
--- Quote from: ptluis on September 30, 2023, 01:13:44 pm ---About the DC calibration I only adjusted the positive DC. I adjusted the Mean measurement of the scope to be as close as possible to the DC signal Voltage, i also used a multimeter in this case UT61E at same time to certify the correct DC value. you can adjust Vpp or DC independently. I was able to adjust each value with a precision of 2 digits in the mV range. But of course this is a cheap scope and may occur some deviation when it's not operated in ideal temp, but anyway it's according to specs. It's not a multimeter but it's enough for many task and I can save my good equipment in situations where a mistake could blow it.
--- End quote ---
Yes.
After some fiddling, I am happy now. :-+
The effort with the upgrade was worth it.
Attached are a few examples: 50mV, 100mV, 500mV, 5V, 20V (Roughly, the SG has steps), and DC: +2V, +3V, +5V.
Considering that the signal comes from the cheap FY3224S, it is very satisfactory.
Thanks again.
--- End quote ---
That's really nice! as you see it was not to difficult when we know how to do.it. It worth the time spent.
The values look nice, and the small difference between Ch1 and Ch2 also happens on mine, So no big deal. For a cheap scope it behaves real good 👍 and the manual calibrations of the measurements is a must have!
Thanks for sharing the photos of all steps. That's what I should have done, but I'm out of time, have a deadline on the actual job.
Aldo22:
I took a look at the zoom feature.
Yes, it's a gadget and unfinished.
I didn't crash it though (Didn't try to).
As I figured, it's not that useful.
It may be a somewhat useful to "navigate" through non-repetitive signals.
Good luck with your job!
ptluis:
--- Quote from: Aldo22 on September 30, 2023, 07:22:29 pm ---I took a look at the zoom feature.
Yes, it's a gadget and unfinished.
I didn't crash it though (Didn't try to).
As I figured, it's not that useful.
It may be a somewhat useful to "navigate" through non-repetitive signals.
Good luck with your job!
--- End quote ---
Check if your scope freeze/crash following this steps:
with your scope in OFF state
1. remove probes
2. Turn ON scope, wait for boot to complete
3. set horizontal timebase to 200us
4. Long press "s" key to enter zoom mode
5. Press AUTO
6. Keep short pressing "s" key to zoom out until scoope freezes and crash (arround 500us)
This is one of many ways to crash the scope. Solution is to never press AUTO in zoom mode
timschuerewegen:
I am considering to buy this oscilloscope to analyze ~1MHz digital/analog LCD signals.
The manual says "in stop mode, the user can move the waveform left and right".
How far can I move the waveform left and right in stop mode when the timebase is set to 1us? In other words, how much captured data can I view/analyze that way? 14us? 15us? 16us? ...
Would the DPOX180H be better suited for this use case?
Thanks.
Aldo22:
In zoom mode you can get an idea of this.
What you see in the lower part corresponds to the dark section above.
I hope it helps.
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