I have a PicoScope 4227 software oscilloscope and I want to ask a question about how to properly connect the Ground Clip from the standard test probe.
I raise the question because on my first measurement attempt I created a short circuit which damaged part of my equipment. I suspect the reason was that the Probe Ground Clip was not properly connected.
I have attached a ppt where I detail the measurement setup that resulted in a short circuit in the first slide, and a second slide where I propose a second measurement setup. I would greatly appreciate if someone could asses whether the new suggested measurement setup is safe.
PS: As detailed in the slide, my equipment consists of:
1) A PC
2) a PCI to SDIO card connected to a PCI port in the PC
3) The measurement board which has an SDIO interface.
The part that resulted damaged after the short-circuit was the PCI to SDIO card in the PC.