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Inline Salinity Meter
Working Principle
The built-in brine concentration sensor utilizes the direct correlation between salinity concentration and liquid density. The salt concentration sensor is excited by a piezoelectric tuning fork to vibrate at its natural frequency. Fluid density is in inversely proportion to frequency shift. The greater the density, the more mass the tines have to vibrate, and the lower their frequency becomes. It’s applicable to monitor salt content before crystallization in chemical engineering in case a high precision and accuracy is required. It excels in long-term stable monitoring with an accuracy of ±0.2% even in corrosive media.
Product Features
● Real-time density measurement for direct integration into process control systems;
● Enables density-to-concentration conversion across all media types;
● Delivers high-precision 5-digit real-time readings (with 4 decimal places);
● Converts measured density data to 4-20mA analog signals or RS485 digital signals;
● Supports on-site parameter configuration and commissioning;
● Offers customizable materials for wetted components, tailored to corrosive media;
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Challenges in Inline Salinity Measurement
● Primary density parameter is sensitive to temperature changes;
● Extreme high and low flow rate lead to reading deviations for uneven contact and delayed liquid update;
● Bubbles in process stream lower density of local liquids;
● Corrosion caused by fouling and sedimentation lower the life span of core sensor;
Advantages of Lonnmeter Inline Salinity Meter
● Automatic temperature compensation (ATM) minimizes interferences from temperature changes;
● Selectable corrosion-resistant material to prevent sensor degradation;
● Fully-capsuled design eliminate possibilities of exposure to corrosive medium;
● Simple mechanical structure minimizes possibilities of maintenance and replacement;
● Certified explosion-proof design improve its safety grade;
● Automatic data logging and documentation enables real-time adjustment and analysis;
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