Tuesday, 23 October 2018

oscilloscope - Wrong measurement of DSO-5200A?


I'm using a DSO-5200A from Voltcraft and noticed the voltage measurement represented incorrectly (it is doubled).
Any ideas how to reset this?


enter image description here


Channel 1 (green) measures a (noisy) 5V and has a Vmean measurement of 10V.
Channel 2 (yellow) measures the DSO's own calibration square wave. Frequency is measured correctly, but the mean value is again wrong.
The cursors correctly indicate a voltage difference of 2V.





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