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The Flexim PIOX S731 liquid mass flow meter determines the mass flow by combining the transit time flow measurement with a sound speed measurement. Both are achieved by means of clamp-on ultrasonic transducers mounted on the outside of the pipe. The non-intrusive technology is the system of choice when substances and processes place the highest demands on safety and reliability. The PIOX S dynamically infers the fluid’s density using its sound speed and temperature, and therefore can provide mass flow in liquids of varying composition. In binary liquids such as acids or sodas, the acoustic velocity is in a fixed proportion to concentration and density. This digital mass flow meter measures the sound velocity, thereby determining the density and concentration of the medium inside the pipe.
