Espresso coffee preparation machine control device, has manually adjusting button for adjusting quantity of distribution of drinks and hot water according to final position of rotation zone of button

摘要

The device has a manually adjusting button (5) for adjusting the quantity of distribution of drinks and hot water according to a final position of a rotation zone of the button. The button, a coffee releasing key (3) and a hot water preselection key (4) are placed on a front panel (1). Attributed functions are represented on the front panel by corresponding symbols.