Centec Sonatec inline sound velocity concentration monitor

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The Centec Sonatec inline sound velocity monitor continuously measures the sound velocity of liquids. Centec, a German-based company, designed the Sonatec for maximum stability and high accuracy. Sonatec can be used in chemical, petrochemical, metal processing and pharmaceutical plants to determine the concentration of hydrocarbons, acids, alcohol, caustics, oil emulsions, oil in water and many other liquids.

The sound velocity measurement is measured directly in line, the liquid flowing through a U-shaped fork. Any change in the fluid concentration changes the sound velocity. For any given fluid, the correlation between concentration and sound velocity can be described by a mathematical polynomial. With decades of experience and their own laboratory facilities, Centec have the polynomials for a large number of liquids. Temperature changes of the measured liquid are automatically compensated for by an internal PT1000 sensor.

Sonatec displays various units, such as volume %, mass % and °Brix. The Sonatec is available with a range of wetted part materials to suit most liquids, including 316 stainless steel, Hastelloy, Monel and tantalum. A range of communication options exist to interface with PLC and DCS systems.