The PIOX® S measuring system, composed of a transmitter and a pair of clamp-on transducers, precisely determines the sonic velocity of the medium based upon the ultrasonic transit-time measured between the two transducers. The Clamp-on transducers are mounted on the outer surface of a pipe. As they are not in contact with the medium, the system is ideally suited for the measurement of chemically aggressive, corrosive, abrasive or ultra-pure media. PIOX® S can be used to determine the concentration of high purity sulfuric acid, hydrofluoric acid, nitric acid or even ammonia gas used in fertilizer plants. Worries about the transducers chemical compatibility, contamination and sealing are a thing of the past. With the clamp-on technology, retrofitting of existing installations is very easy and can be done without cutting into the pipe and without any process interruption. The non-intrusive acoustical technique is also the method of choice when the materials and processes place high demands on safety and purity. The Ultrasonic measurement is thus also well suited for the food and beverage industry with its high sanitary standards. Here, it is used to measure the alcohol or sugar content in liquids and is a proven method for CIP process optimization. Advantages of PIOX S: Non-Intrusive, Installation without process interruption (clamp-on) No contact with the medium, no special materials necessary Hygienic measurement method, suitable for ultrapure media No pressure loss, no risk of leakage, no contamination No chemical compatibility issues, watertight, no pressurized parts Maintenance free, no corrosion or abrasion Integrated, highly dynamic flow measurement