Klarstein ARIA SELECT SMART Manual página 79

As soon as the device is switched on, the home screen of the touch-sensitive
control panel lights up.
Note: All functions only work when the blender jug is installed and the lid is
on and locked. Otherwise, only the scale function and the heating function will
work. If the lid is not on, the heating process can be started, but the motor
cannot be run until the lid is on and locked.
EN
79