Rosemount™ 225 Toroidal Conductivity Sensor

The Rosemount 225 Toroidal Conductivity Sensor is intended for use in pharmaceutical and food & beverage applications where a sanitary design is required. This conductivity sensor is corrosion and fouling resistant and is ideal for measuring the concentration of CIP solutions, detecting product/water interfaces, checking product quality, and monitoring eluents in chromatographic separations.

• Meets various sanitary requirements:
• USP Class VI compliant
• FDA food contact 21CFR177.2415 compliant
• 3-A Sanitary Standard 74-06 compliant
• 2-inch tri-clamp process connection
• Robust measurements - insensitive to process flow and direction
• Meet application compatibility requirements with a selection of chemical resistant body options including PEEK and Tefzel

1. Exceptional Fouling and Scaling Resistance

· Electrodeless Design: The absence of exposed electrodes fundamentally eliminates measurement drift and failure caused by electrode fouling, coating, corrosion, or abrasion, offering unmatched reliability in harsh conditions.

2. Ideal for Extreme Applications

· Capable of handling high-concentration slurries, viscous fluids, fibrous media, and corrosive chemicals like strong acids and bases, which would rapidly degrade traditional contacting electrodes.

3. Wide Measurement Range

· Designed for measuring high conductivity solutions, typically covering a wide range from 100 μS/cm to 2,000,000 μS/cm, making it perfect for concentrated acids, bases, and salt solutions.

4. Rugged Construction

· The sensor body is made of Ryton (PPS) with an optional PFA coating, providing excellent chemical resistance and mechanical strength to withstand high temperatures, pressure, and mechanical stress.

5. Minimal Maintenance

· With no electrodes to clean or replace, maintenance is significantly reduced, often limited to periodic physical inspection, leading to a lower total cost of ownership.

· Concentrated Acid/Base Concentration: Online monitoring of sulfuric acid, hydrochloric acid, caustic soda, etc.

· High-concentration salt solutions in process streams.

· Mining Slurries & Process Water: Conductivity measurement in slurries with high solids content.

· Wastewater Treatment: Conductivity monitoring of high-salinity wastewater, landfill leachate, scrubber blowdown.

· Chemical Recovery Processes.

· Seawater Desalination Pretreatment.

· Any harsh water quality environment prone to fouling or damaging contacting electrodes.

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