Sensor Measures Aqueous Solutions in Pipelines

Emerson Process Management has released the Rosemount Analytical Model 3900 general-purpose pH/ORP sensor, which is designed to measure aqueous solutions in pipelines, open tanks or ponds. The Model 3900 functions at sub-zero temperatures, providing accurate measurements in applications from -10 to 100C. Each sensor is equipped for both 3/4 and 1in mounting, allowing it to fit in smaller pipes and giving optimum mounting versatility in insertion, submersion and flow-through applications.

The Model 3900 features the patented Accuglass sensor glass formulation, which has been field-proven in premium sensors designed for rugged environments. The Accuglass formulation exceeds industry standards and resists cracking. 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 other 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, simplifying maintenance and scheduling. The solution ground also reduces noise, makes for a highly stable measurement and makes internal temperature compensation respond more quickly than with previous generation solutions. The Model 3900 is a combination sensor including pH, ORP and temperature within the sensor body. The sensor is compatible with all Rosemount Analytical analysers, as well as those from other manufacturers.

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