Abstract: A bioprocessing installation comprising a reservoir tank, one or more fluid lines, one or more receiving containers and an electronic control unit. The fluid line fluidically connects the reservoir tank to a receiving container. The liquid biological medium can be transferred from the reservoir tank through the fluid line into the at least one receiving container. The bioprocessing installation comprises a sensor arrangement with at least one gas bubble sensor, which sensor arrangement is configured to detect one or more gas bubbles or foam or separated phases in the liquid biological medium by a gas bubble sensor and to generate one or more corresponding sensor signals, and the electronic control unit is configured to monitor the transfer of the liquid biological medium from the reservoir tank in the direction of the at least one receiving container based on the sensor signals generated by the sensor arrangement.

Abstract: A weighing apparatus includes —a sample holder (20), —a protective housing (14, 16, 18) with an access port (181) and a closure element (26), —a reflection sensor (34) with a radiation emitter (37) emitting sensor radiation (38) reflected by a reflecting object (39) and with a radiation receiver (42) receiving a sensor radiation component (40), reflected by the object and —a control unit (32), connected to a motorized drive (30) of the closure element and to the reflection sensor, and which controls the motorized drive with a reflection sensor signal, for transferring the closure element between closed and open positions. A differentiating element subjects a sensor primary signal (52) of the reflection sensor to a differentiation. The primary signal depends on a reflection intensity of the reflected radiation component and generates a sensor secondary signal (60). The control unit controls the motorized drive based on the sign of the secondary signal.

Abstract: A weighing apparatus includes —a sample holder (20), —a protective housing (14, 16, 18) with an access port (181) and a closure element (26), —a reflection sensor (34) with a radiation emitter (37) emitting sensor radiation (38) reflected by a reflecting object (39) and with a radiation receiver (42) receiving a sensor radiation component (40), reflected by the object and —a control unit (32), connected to a motorized drive (30) of the closure element and to the reflection sensor, and which controls the motorized drive with a reflection sensor signal, for transferring the closure element between closed and open positions. A differentiating element subjects a sensor primary signal (52) of the reflection sensor to a differentiation. The primary signal depends on a reflection intensity of the reflected radiation component and generates a sensor secondary signal (60). The control unit controls the motorized drive based on the sign of the secondary signal.