Model 226 Toroidal Conductivity Sensor

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REDUCED CLEANING REQUIREMENTS provided through the use of inductive measuring principles. CHEMICALLY RESISTANT MATERIALS withstands the effect of highly corrosive solutions. HIGH TEMPERATURE PEEK SENSOR operates at temperatures up to 120°C (248°F). FLOW THROUGH SENSORS LINED WITH Teflon® allows high temperature, high pressure measurements.

FEATURES AND APPLICATIONS Rosemount Analytical Toroidal Conductivity Sensors are used in processes where conventional sensors having electrodes exposed to the measured solution would corrode or become fouled. The Model 226 toroidal (inductive) conductivity sensor consists of a pair of wire-wound metal toroids overmolded with corrosion-resistant PEEK or Tefzel. One coil is the transmitter, and the other coil is the receiver. When the sensor is immersed in a conductive liquid and the transmitter coil is energized, the coil induces a current in the solution. The solution current induces another current in the receiver coil, which the analyzer measures. The current in the receiver coil is directly proportional to the conductivity of the solution. The Model 226 is a large bore sensor molded in PEEK (polyetheretherketone). The sensor has a rugged design similar to the Model 228. The Model 226 sensor performs better than the 228 sensor in applications containing high levels of suspended solids — solids tend to plug the smaller opening in the 228 sensor. The large toroids used in the 226 sensor also allow it to measure lower conductivities. Teflon® is a registered trademark of DuPont Films.