According to the invention, there is provided seed and plants of the hybrid corn variety designated CH883029. An elastic ratchet projection 16, which is provided on a connecting part 23 of a nozzle tip 20, is engaged with ratchet projection 33, which is provided on a opening portion 31 of a container 30, so that loosening cannot happens even though rotating force in the screw-loosening direction at the installed nozzle tip 20 is occurred. The user inputs include instructions relating to an edit of the selected motor profile.