Method for clarifying a flowable product by way of a centrifuge

A method for clarifying a flowable product (P) with a separator that discontinuously automatically empties solid matter and comprises a rotary system having a drum that is rotatable by a drive spindle, said drum having an inlet for the product (P) to be clarified and at least one liquid discharge for the continuous discharge of at least one clarified liquid phase (L) and solid-matter discharge openings that are to be opened discontinuously for the discontinuous discharge of the solid phase (S), characterized by the following steps of: a) determining one or more parameter(s) associated with the vibratory behaviour of the rotary system with the aid of at least one vibration sensor (20); and b) initiating a temporally limited solid-matter discharge when or after a limit value for the measured parameter(s) is exceeded. (Fig. 1)