A method for filling bags with metered quantities of bulk products includes providing a first container and a second container having an assigned total volume. Each container is divided into two respective half-volumes, each half-volume being designed to feed product to a first station or a second station for filling bags, so that each container has a half-volume connected to the first station and a half-volume connected to the second station of the two stations. A first predefined metered quantity of product is provided inside the first container by dividing-up the metered quantity of product into two quantities equal to approximately half the metered quantity, each fed to a respective half-volume of the first container. A bag is conveyed to the first filling station. The bag is filled with the quantity of product of the first half volume of the first container.

The capsule filling machine includes a turntable with capsule segments, at least one insertion station and at least one filling station. The capsule filling machine further includes at least one test container and a container weighing station with a weighing cell for weighing the test container. In a regular operating mode, capsule lower parts are inserted into a respective capsule receptacle of a segment lower part in the insertion station, and a product is filled in a filling station. In a testing mode, a test container is placed on a capsule receptacle, after which the test container in the segment lower part is moved to the at least one filling station and filled there with the product. The filled test container is then moved to the container weighing station and weighed there via the weighing cell. A method is for operating such a capsule filling machine.

A method and system for correcting mass flow rate measurements relating to a conveyor used to move a stream of first component material portions to and through a mixing station in which a second component material is dispensed in a predetermined mass percentage of the mass of the first component material portions. The correction of the measurements is adapted to correct for inaccuracies that arise in the measurements due to, for example, differences in the first component material portions properties, differences in the second component material properties, environmental conditions, drift of electronic instruments, and changing conditions that occur during extended use of an upstream conveyor that delivers first component material portions to the mixing station.