Membrane filter press

Signal conversion




The fine particle solid residue is separated from the distillation stillage by filtration and used as fuel for energy production or as substrate for development activities in higher value applications. The process water is sent to the biogas plant at the industrial site. All process water streams from the plant are treated biologically before being discharged.


DP transmitters are used to measure the pressure difference across the membrane filter press, assuring the highest system stability.


Each DP transmitter is energized by the PR 4114 universal transmitter with the PR 4510 display / programming front attached. The 4114 also converts the DP signal to a 0…10 VDC signal, which is required by the PLC. This solution provides easy process calibration via the push buttons on the 4510 detachable programming unit.





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