Hantek6254BD - Nominal and maximum peak voltages per channel

nelsonvgg

I just bought a brand new PC-oscilloscope Hantek6254BD.

The user manual says that maximum voltage per analog channel is 400V (DC+AC Peak), however it says nothing about nominal peak voltage per channel.

I would like to know what are the are nominal and maximum peak voltage that CH1 CH2 CH3 CH4 can support operating one channel at the time and all together?
How these values changes acording to probe attenuation?
My doubt comes from the fact that in other threads it is said thar maximum peak voltage per channel is 5 [V]

Best regards,