Flow cell for use in a fluid management and/or processing system

A tubing arrangement for use in a fluid management and/or processing system, the tubing arrangement comprising first, second, third, and fourth flow cells, each flow cell comprising a functional element and

• a body having an inlet and an outlet and a fluid flow channel extending from the inlet to the outlet, said body further comprising a receptacle comprising a chamber forming a part of the fluid flow channel, said chamber comprising a first opening for connecting the functional element, wherein the functional element comprises a first conductivity sensor, a pH sensor, a second conductivity sensor, or a pressure sensor, to the flow cell, such that the functional element is in contact with or exposed to a fluid flow passing through the fluid flow channel;
• a first tubular connector arranged adjacent to the inlet;
• a second tubular connector arranged adjacent to the outlet;
• a fluid flow path extending from the first tubular connector through the inlet, the body and the receptacle to the outlet to the second tubular connector, wherein the first flow cell comprises the first conductivity sensor, the second flow cell comprises the pH sensor, the third flow cell comprises the second conductivity sensor, and the fourth flow cell comprises the pressure sensor, wherein the second flow cell comprising the pH sensor is arranged between the first flow cell comprising the first conductivity sensor and the third flow cell comprising the second conductivity sensor, wherein the fourth flow cell is arranged between, and in fluid communication with, the first flow cell and the second flow cell, and
• an integrity test line arranged between, and in fluid communication with, the first flow cell and the second flow cell, wherein the fourth flow cell is also in fluid communication with the integrity test line.