Milking arrangement comprising a cleaning arrangement

A milking arrangement, comprising:

• a milk transport line (1);
• a plurality of milk stations (2) connected to the milk transport line (1);
• a receiver (3) connected to the milk transport line (1) and configured to receive milk transported from the milk stations (2) to the receiver (3) via the milk transport line (1);
• a vacuum system (4) configured to supply a vacuum in the milk transport line (1);
• a cleaning liquid source (9) connected to the milk transport line (1);
• a controllable injector (10) configured to introduce an amount of gas into the milk transport line (1) that produces a pressure increase in the milk transport line (1) that causes a slug of a cleaning liquid from the cleaning source to be formed and forwarded through the milk transport line (1);
• a control system (19) configured to control the injector (10);
• and
• a vibration sensor (27) located on the receiver (3) and configured to measure a motion of the receiver (3) caused by the slug entering the receiver (3), wherein the control system (19) is configured to determine a characteristic of a slug comprising a length of the slug and a velocity of the slug on the basis of a measurement of the vibration sensor (27),
• the control system (19) being configured to determine an expected entrance of the slug, or an absence of an expected entrance of the slug, into the receiver based on the measurement of the vibration sensor (27) and the determined characteristic of the slug in the receiver (3).