I was able to understand it.
I must choose something except OFF in the next choice of AC/DC.
Thank you.

Ryosuke Kawano

Hello. I'm an user of the PicoScope 3424. This is first time I send message. Please teach me how to use the PicoScope Software. How can I move vertical scales such as following picture? http://www.picotech.com/images/picoscope-menu.png I'm waiting for a reply from you. Thank you in advance. Ryosuke ...