I know there is quite few discussions already on this topic, but since english isn't my first language I though it better to get some more information about this.
I have used oscilloscopes to troubleshoot electronics problems and measure AC engine current spikes at startup but I have no experience using them to measure high voltage levels and my experience is with old analog scope.
So now I have this new DSO and the input rating is 400 peak to peak AC, so it can handle about 140 AC rms? Not that im going to input that much there.
Since I live in Europe the mains here are 230 V @ 50 Hz I can't measure them directly. If I set the attentuation from the scope and probe to 10X, the voltage is 23 rms and it is safe to measure? And yes there probes are rated for 1kV.
If that is true, it's also safe to measure voltage between two main lines (400V rms), since the peak-to-peak would be about 112 volts?
SAFETY: When I am measuring AC, I will be using the scope from its internal battery or with a isolating transformer (1:1) so that it is floating, meaning that there is no connection to earth ground. Is there any other safety issues I have not realised?