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  1. #1
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    CRO measurements whether to ground or not and when to ground

    I want to measure input voltage with oscilloscope for my DUT which runs with 20v. Do i need to ground the oscilloscope? Wheb do i need to ground the instrument with ground mat and do i need to be also grounded? When is it necessary to geound the instrument??

    Thanks

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  2. #2
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    Re: CRO measurements whether to ground or not and when to ground

    The scope doesn't absolutely need a soil connection. Nor your DUT. In fact a good thing to install is an isolation transformer. It insulates the scope from soil.

    There are situations where mains AC can find a short circuit through your setup, if you're not careful. More than once I have zapped my projects because I forgot to pay attention to hot and neutral mains wires.



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