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Methanol Concentration Meter Inline
Working Principle
The inline methanol concentration monitor 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 Methanol Concentration Measurement
● Temperature and pressure changes alter methanol concentration;
● Sensor degradation over time caused by methanol with trace acids from hydrolysis;
● Fouling and deposition on sensor surfaces lead to slow response times or drift;
● Dynamic flow rates cause uneven medium contact;
● Bubbles in methanol stream reduce the effectiveness of density measuring;
Advantages of Lonnmeter Inline Methanol 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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