Abstract: The cleaning of milk transporting conduit structure involves introducing fluid and an amount of gas into the milk transporting conduit structure, which causes a slug of fluid to be formed in and forwarded through the milk transporting conduit structure. A sensor arrangement measures at least one parameter related to the slug, and repeatedly forwards updatings of the at least one measured parameter to the data processor. Based thereon, the data processor produces an indicator of at least one quality of the cleaning process. The indicator reflects a cross-sectional profile of the slug at at least one position in the milk transporting conduit structure.

Abstract: A diagnostic apparatus for testing a milking point of a milking machine includes sensors for measuring fluid-transport related parameters, including various pressure levels and/or flow values relating to a set of teatcups includes a controllable valve and a set of test tubes. Each test tube is configured to be attached to one teatcup, where the controllable valve selectively arranges a particular one of the test tubes for measurement of at least one parameter via one of the sensors in response to a control signal. The measurements are performed while all the teatcups are simultaneously attached to the test tubes and an external vacuum pressure is applied either on a milk-line side of the controllable valve or on a side opposite to the milk-line side relative to the controllable valve.

Abstract: A test device includes a fluid flow conduit, an air flow regulator, a pressure sensor, an air flow meter, and a control unit automatically controlling the air flow regulator on basis of a measurement performed by the pressure sensor or the air flow meter; controlling the air flow regulator and the pressure sensor or the air flow meter such that a closed loop sequence in which either the measured pressure or the measured air flow rate is used as the basis for changing the air flow rate by control of the air flow regulator until the moment in which the measured pressure or measured air flow rate reaches a predetermined value; and automatically initiating measurement operation of the other one of the pressure sensor or air flow meter when the measured pressure or measured air flow rate measured in the closed loop reaches the predetermined value.

Abstract: The cleaning of milk transporting conduit structure involves introducing fluid and an amount of gas into the milk transporting conduit structure, which causes a slug of fluid to be formed in and forwarded through the milk transporting conduit structure. A sensor arrangement measures at least one parameter related to the slug, and repeatedly forwards updatings of the at least one measured parameter to the data processor. Based thereon, the data processor produces an indicator of at least one quality of the cleaning process. The indicator reflects a cross-sectional profile of the slug at at least one position in the milk transporting conduit structure.

Abstract: A diagnostic apparatus for testing a milking point of a milking machine includes sensors for measuring fluid-transport related parameters, including various pressure levels and/or flow values relating to a set of teatcups includes a controllable valve and a set of test tubes. Each test tube is configured to be attached to one teatcup, where the controllable valve selectively arranges a particular one of the test tubes for measurement of at least one parameter via one of the sensors in response to a control signal. The measurements are performed while all the teatcups are simultaneously attached to the test tubes and an external vacuum pressure is applied either on a milk-line side of the controllable valve or on a side opposite to the milk-line side relative to the controllable valve.