I bought a DSO4254C on Aliexpress.
The scope had no DC offset so working fine.
Now, my scope has developed a DC offset. How can I remove it? I suspect your firmware update, I am using the probes provided with the scope.
Have you ever calibrated? After the machine has warmed up for at least 30 minutes, perform self-calibration. Do not connect any wires.
If there is still a problem, please shoot the relevant video and send it to my email.
Post time 2021-12-2 15:27:56
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