Hello I recently got my OWON DS6062V 60Mhz scope. The manual looks decently translated but I still don't fully trust it so I'd rather ask the more experienced members here. My first question is about the maximum input voltage that a scope can take. On the front end of the scope it say's 400V CAT II. The probes are rated at 200V @ 1x and 600V @10x. Am I to assume that the scope can actually handle 400 volts of input? If I'm measuring say 400V with 10x division the scope is seeing only 40V right? So theoretically if I am using high voltage probes set at 10x I could measure say .. 2kV and the scope would see only 200V which would not be a problem. (Assuming I am using high voltage probes that can handle 2kV) My second question is concerning the ground. As I found out , the probe ground is electrically connected to the main ground which means that when I'm doing measurements I have to stick the probe ground to GND otherwise I can cause a short. Is this because the scope (and my bench psu) is using an SMPS? Would the ground be isolated if say the scope was running off a linear PSU ? Thanks in advance.