A MEMBRANE ARRANGEMENT, A PISTON PUMP ARRANGEMENT HAVING SUCH A MEMBRANE ARRANGEMENT, AND A PROCESSING LINE FOR HYGIENIC PROCESSING APPLICATIONS

摘要

The invention relates to a membrane arrangement. The membrane arrangement comprises a first membrane (306; 602), a second membrane (308; 604), a membrane interior space (312) formed between said first membrane (306; 602) and said second membrane (308; 604), said membrane interior space (312) housing a fluid, and a sensor (608; 700; 908) configured to register at least one property of said fluid. The sensor (608; 700; 908) is configured to measure a capacitance level of said fluid. The invention also relates to a piston pump arrangement (1104) having such a membrane arrangement, and a processing line for hygienic processing applications.