pH/ORP Sensor Handles Broad Range Of Industrial Applications

Jan. 26, 2011
Complete encapsulation of the sensor eliminates leakage or high humidity problems found in many pH/ORP sensors.
Emerson Process Management's Rosemount Analytical Model 3900 general-purpose pH/ORP sensor features a wide temperature operating range. The sensor can function at sub-zero temperatures, providing accurate measurements in applications from -10 degrees C to 100 degrees C. Each sensor is equipped for both 3/4-inch and 1-inch mounting, allowing it to fit in smaller pipes and providing mounting versatility in insertion, submersion and flow-through applications. The Model 3900 includes the AccuGlass sensor glass formulation, which has been designed for rugged environments. In addition, a Teflon double-junction reference electrode protects the sensor from poisoning ions. The complete encapsulation of the sensor eliminates leakage or high humidity problems found in many pH/ORP sensors. The Model 3900 gives the user access to a wider range of more advanced diagnostics. In addition to glass diagnostics, a stainless-steel solution ground allows reference diagnostics, which can simplify maintenance and scheduling. The solution ground also can reduce noise, provide a highly stable measurement and make internal temperature compensation respond more quickly than with previous generation solutions. The Model 3900 is a combination sensor including pH, ORP (Oxidation Reduction Potential) and temperature within the sensor body. It is designed to measure aqueous solutions in pipelines, open tanks, or ponds. The sensor is compatible with all Rosemount Analytical analyzers as well as those from other manufacturers.

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