Working Principles and Applications of Continuous Online Gas Detectors
Working Principle
This instrument is a non-dispersive infrared (NDIR) gas analyzer. Its operating principle is based on the selective absorption of infrared radiation by certain gases. The device adopts a single light source, single-cell half-partition gas chamber and high-performance detector. It features exquisite manufacturing process, high analysis accuracy and excellent stability. Advanced digital processing technology and a brand-new LCD display interface are integrated into the system.
Applications and Scope of Use
The online gas analyzer is an instrument for analyzing gas composition and falls under the category of process analytical instruments. As a measuring device for chemical parameters, it holds equal importance to physical parameter instruments such as pressure gauges and flow meters in numerous industrial production processes. It plays a vital role in regulating production environments and minimizing safety incidents.
An online gas analyzer is a testing tool for gas component analysis, which can measure the type and concentration of specific gas components. However, it is far from a simple device. It has a much more complex structure than flow meters or pressure gauges and is more difficult to operate compared with various thermal instruments. Operating gas analyzers requires sophisticated professional expertise that is not easy to master.
Generally speaking, the application of online gas analyzers constitutes a distinctive and even research-oriented technical discipline, which is rarely understood by personnel outside the industry.
Online gas analyzers are designed for continuous measurement of the volume fraction of a single gas component (such as CO, CO₂, SO₂, CH₄, NH₃) in multi-component gas mixtures.
