Hello. I bought my oscilloscope on 12/13/2021, when I first used it, I noticed that Channel 2 was measuring wrong. Channel 1 looks OK. After auto-calibration, the oscilloscope displayed error 0x10502 in step 28-29. When I turn the oscilloscope off and on, the measurement works as it is. Each calibration ends the same. What can I do?
Please connect the 1Khz 2V signal that comes with 1202B to CH2, press AUTO to get a waveform, change the coupling of CH2, and check whether the waveform has an offset change, you can compare it with CH1.
I try on the different settings of the coupling. And on the image is a result.
[img]On this moment scope in the self calibration stoped on 30 step and show error 0x10502
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Please connect the signal only to channel 2 and press AUTO, then set the coupling to AC and DC respectively, and check whether the waveform has an offset change
I connect the signal to channel 2 and press AUTO, then I was set the coupling to AC and DC respectively. The waveform has an offset change, like on CH1 but is unstable and changing form on boutch setings.
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Set up the oscilloscope as shown in the picture, press the "A" key several times to enter the debugging mode, CH1 will output a voltage of 8mV, and the line will shift to the upper position at the same time. Will the oscilloscope look like this?
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Post time 2022-1-4 15:48:48
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Post time 2022-1-5 04:50:50