The AL-CAR-K Caustic Analyzer is a robust in-line refractometer sensor that provides real-time continuous liquor phase density using the refractive index.

Refractive index sensors (RI meters) are widely used in many process environments in industries such as sugar, pulp and paper, chemicals and food.

This RI meter has been adapted to meet measurement obstacles created by the rigors of the alumina process, such as fouling and erosion.

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Features and benefits

• Reliable real-time monitoring of pulp Liquor phase density
• Density in the pulp Liquor phase is independent of suspended solids or slurry
• Robust probe designed specifically for the alumina industry
• Thanks to the excellent control of the A/C ratio the need for sampling is greatly reduced
• Operators can respond immediately to process disturbances and have almost immediate feedback of initiated changes
• Automatic control, feedback, of the Caustic Liquor dilution loop is absolutely achievable

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design

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• Exclusive design with fully digital sensing techniques: No moving parts
• Digital communication between sensor and transmitter
• Temperature compensation for process variations
• Robust all stainless steel external design
• Wetted parts in Duplex Steel (SAF2205) with PSZ ceramic tip.