RG310P Infrared Gas Analyzer

【RG310P Type infrared gas analyzer】

RG310P The series of infrared gas analyzers are designed by our company for environmental monitoring and industrial site emissions of gases Analyze the independently developed infrared gas analyzer. This analyzer mainly measures CO、CO2、N2O、CH4 and O2 waitGas concentration, with high measurement accuracy, stability, and reliabilityCharacteristics such as high performance and fast response time.

【RG310P Infrared Gas AnalyzerApplication scenarios】

l Smoke emission detection (analysis of CO) 、CO2 、N2O 、CH4 、O2）

l Greenhouse gas detection (analysis of CO)2 、N2O 、CH4）

l Motor vehicle exhaust emission testing (analysis of CO) 、HC 、CO2）

【feature】

l Adopting single beam dual wavelength technology, compared with traditional NDIR, there is no need for a filter wheel, and the system is stable and reliablerely on

l H2O Interference deduction, real-time measurement of H2O thick度修正 H2O Interference with other measured components

l Using multiple reflection chambers, the instrument has a low detection limit

l The instrument has high internal temperature control accuracy and good environmental adaptability

l The light source adopts MEMS infrared radiation light source, and electrical modulation does not require a chopper wheel

l No optical moving parts, no cutting wheel, filtering wheel, interferometer and other optical moving parts，high reliability

l Modular design, using light sources, core circuits, gas chambers, oxygen sensors, temperature control units, etc

l Modular design, high reliability, good scalability, and easy maintenance

【Technical Specifications】

【Measurement principle

l Beer-Lambert law

image 1 Gas absorption process

I(λ) = I0(λ) * e-σ(λ)CL

Where:

I0(λ)-------The wavelength is λ The incident light intensity of the light;

I(λ)---------The wavelength is λ The emitted light of the lightstrength;

σ(λ) ---------Gas at wavelength λAbsorption cross-section;

e-------------Gas concentration to be tested;

L--------------The interaction between gas and lightUsing length (effective length of gas pool);

Beer-Lambert The law is the basis of optical quantitative analysis of substance concentration, which is shown in the tableCollecting the absorption of specific wavelengths of light by substances situation It can be seen that, with known absorption cross-section and optical path length, measuring the incident and outgoing light intensities is sufficient Calculate the concentration of the corresponding gas.

l CO2 、CO 、N2O 、CH4 Waiting for gas infraredabsorption cross-section

image 2 Infrared absorption cross-section

CO2 、CO、N2O and CH4 There are obvious characteristic absorption spectral lines in the range of (3000-5000) nm This can be measured simultaneously using infrared spectroscopy for these four gases.

l Single beam dual wavelength technology

Single beam dual wavelength technology uses a single beam to illuminate a multi-channel detector for a specific substance to be tested One of the channels is the measurement channel, and the other channel is the reference channel. The wavelength corresponding to the measurement channel is the absorption of the substance to be measured The wavelength corresponding to the reference channel in the receiving area is the substance to be tested and the backgroundThe area without gas absorption.

By comparing the measurement channel with the reference channel, it is possible to eliminate fluctuations in the energy of the light source and changes in the overall characteristics of the detector The impact of coming.

image 3 Single beam dual wavelength technology

2 Optical path structure

image Optical path structure of analyzer 4