That looks totally fine. If the probes were out of adjustment the edges of the waveform would be rounded or spiked.
yes, but as I was told I ran the probe test on 1x, I have to repeat
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I believe probe compensation needs to be done at 10x setting....
Your scope should have come with a probe that can be set to 1x or 10x. (this is not always the case with every probe) Some probe is dedicated to 10x only. I have never seen 1x only probe.
On your probe, you should see a yellow slide switch that goes from 1x to 10x. Slide that to 10x. Then do the same test. Should the edge not squared, turn the little capacitor on the probe with the tiny screw driver that came with it. Be gentle here.... You shouldn't need a lot of change.
You've noticed there is a setting on the scope itself that switches 1x and 10x. It actually doesn't do anything on the display EXCEPT the voltage scaling.
The difference:
probe switch: 10x switch enables and disables the attenuation on probe itself.
scope setting: 10x changes the read out on display 10 times - whatever the signal that arrives.
Typical setting is 10x. Why that is, I'll defer that to later.
ps. I'm so glad you pushed the button!
yes of course, the probe has the button 1x to 10x. I ran the test with 1x thinking it was the most common use, instead now you have explained to me that normally the probes should be used 10x
I must say that the siglent manual does not mention whether to set 1x or 10x, it only says that if they are calibrated by turning the screw then they must be 10x.
It was about time I pressed that button
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First, you are inadvertently in Zoom mode. Press the timebase control to toggle back out of it to single timebase mode.
You are only showing ch2 and that's because Autoset has adjusted for it and set the Trigger to it.
Probes only need compensating in 10x mode.
Press Ch1 button to enable it and only compensate probes on 10:1 settings......both the probe and channel input.
Look back at the screenshot I posted earlier, the channel tab displays the vertical setting on the channel (where it is on the display) and the input attenuation (10x, 1/10). This is the probe setting we use nearly all the time as it loads the circuit under test much less than a 1x setting and reduces the amplitude into the scope by a factor of 10.
If the scope and probes are set correctly this allows measurement to be correct whereas once we did the measurement by comparing the waveform against the graticules and also factored in the probe attenuation.
USB screenshots only need a second of 2 to be saved and there is no provision or need for safe eject.
As these scopes have no RTC (real time clock) the screenshot is not timestamped so a PC complains about it. Quite normal and not something to worry about.
hello, zoom I pressed it on purpose, to enlarge the square wave, so I could see better if it was ok, there will surely be a better method but for now I don't know
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I showed two images, one of channel 1 and the other of channel 2, why do you say that I only show channel 2?
Ok, then I repeat the calibration test, setting the probes to 10x, I didn't know it and the manual said nothing to me.
Clarification: the manual says to set the 10x probe only if it has to be calibrated through the small screw
now I'm happy to understand: set both the probe and the oscilloscope channel to 10x, and repeat the calibration test
For usb key, I will see with another key, because otherwise then when I put it in the PC it always asks me that the unit is corrupt and must be analyzed
Now I repeat the test...
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thanks
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