Filtration with Pressure Control The backpressure in a filtration application depends among other influences on the volume flow rate of the medium to be filtered. The pressure can thus be controlled indirectly by changing the pump speed through the FCS (Flow Controller System) using PID control and a 4-20mA [...]

Flow Control with Tangential Flow Filtration In tangential flow filtration (TFF), the necessary cross-flow is controlled via the speed of the recirculation pump. The cross-flow is measured by a Sonotec flow meter that is typically located at the outlet of the TFF module (retentate flow). The RS485/Modbus digital signal [...]