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Ammonia Concentration Meter Inline
Working Principle
The inline concentration measuring device is excited by a piezoelectric tuning fork to vibrate at its natural frequency. The change of its frequency is measured when it’s fully immersed in a fluid. 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. Then an electronic circuit amplifies the detected signal and converts the physical signal to a density or concentration value.
Product Features
● Real-time density measurement for direct process control;
● Supports density-to-concentration conversion for all medium;
● High-precision 5-digit (4 decimal places) real-time readings;
● Converts measured density to 4-20mA or RS485 digital signal;
● On-site parameter setting and commissioning;
● Customizable wetted part materials for corrosive medium;
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Challenges in Inline Ammonia Concentration Measurement
● Liquid ammonia is prone to volatile in poor sealing systems;
● Alkaline ammonia combined with ammonium salts corrodes sensors over time;
● Ammonium salt crystals deposited on sensor surfaces lead to delayed response or drift;
● High flow rates cause uneven contact between the solution and the sensor;
Advantages of Lonnmeter Inline Ammonia Concentration Meter
● -30~120 ℃ temperature compensation to minimize interferences from temperature changes;
● Customizable corrosion-resistant materials (Stainless steel, titanium alloy, Hastelloy alloy, PTFE, ceramic);
● Install and immerse on stable methanol stream;
● Simple mechanical structure minimizes possibilities of maintenance and replacement;
● Ultra-low error margin (±0.2% full scale);
● Automatic data logging and documentation;
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