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@bedubyasa asked:
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I've moved this question to Q&A because it fits better here. Please note that via USB there is a direct (low impedance) ground connection from the BNC sockets to the PC and thus to the protective earth. Therefore, it is a totally bad idea to connect the ground terminal to an unknown potential, because then high currents can flow that can damage your scope or your PC. This is typical for most USB scopes, not only the Another point is that the Hantek only has DC coupling, but you can either use a DC breaker or simply connect a capacitor (100nF/250V) in front of the probe. If you want the de-luxe solution, check out my AC modification, it's supported by OH6022: |
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Many thanks for your answer! |
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I've moved this question to Q&A because it fits better here.
Please note that via USB there is a direct (low impedance) ground connection from the BNC sockets to the PC and thus to the protective earth. Therefore, it is a totally bad idea to connect the ground terminal to an unknown potential, because then high currents can flow that can damage your scope or your PC. This is typical for most USB scopes, not only the
Hantek. Dave has good information on this topic:
https://youtu.be/xaELqAo4kkQ
Another point is that the Hantek only has DC coupling, but you can either use a DC breaker or simply connect a capacitor (100nF/250V) in front of the probe. If you want the de-luxe solution, check ou…