Specification

IR-GAS-600 Carbon Dioxide (CO2) gas analyzer is a new type of infrared gas sensor independently developed by our company for environmental monitoring and industrial site emission gas analysis. High-precision, high-resolution probes and gas absorption cells with completely independent intellectual property rights are used. The sensor has the characteristics of high precision, good stability and fast response time.

Non-dispersive infrared (NDIR) is a more traditional method of measuring CO2 gas. This technique relies on the infrared absorption of CO2 molecules and the detection of infrared radiation by an optical detector. NDIR is typically used to measure larger concentrations of gases, but it is not as accurate or sensitive as TDLAS. Additionally, NDIR requires calibration with reference gases in order to properly measure the concentrations of CO2 in a sample.

Info

A carbon dioxide (CO2) gas analyzer that utilizes NDIR (Nondispersive Infrared) technology is a device specifically designed to measure the concentration of carbon dioxide (CO2) in a gas sample using the NDIR principle. NDIR technology has become a widely adopted method for CO2 gas analysis due to its accuracy and reliability.

In NDIR-based CO2 gas analyzers, the working principle involves the measurement of the absorption of infrared light by CO2 molecules. The analyzer emits infrared light at a specific wavelength that is absorbed by CO2, while other gases in the sample do not absorb significantly at that wavelength. By measuring the amount of light absorbed, the analyzer can determine the CO2 concentration in the gas sample.

Here’s a simplified overview of how an NDIR CO2 gas analyzer works:

• Infrared Light Source: The analyzer includes an infrared light source, typically an infrared LED or a tunable infrared laser diode. The light source emits infrared light at a specific wavelength that corresponds to the absorption band of CO2.
• Gas Sample Chamber: The gas sample is introduced into a measurement chamber or cell, which allows the infrared light to pass through it.
• Detector: A detector is positioned on the other side of the gas sample chamber to measure the intensity of the transmitted light. The detector detects the remaining infrared light after it has passed through the gas sample.
• Reference Channel: The analyzer may also include a reference channel that measures the intensity of light that has not passed through the gas sample. This reference measurement helps compensate for any variations in the light source intensity or other factors that can affect the measurement.
• Signal Processing: The analyzer processes the signals from the detector and reference channel to determine the absorption of light by the CO2 molecules in the gas sample. The absorption signal is then converted into a CO2 concentration reading.

NDIR-based CO2 gas analyzers offer several advantages, including high accuracy, stability, and low sensitivity to other gases present in the sample. They are commonly used in applications such as indoor air quality monitoring, greenhouse gas monitoring, combustion processes, and industrial emissions control.

When selecting an NDIR CO2 gas analyzer, important factors to consider include the measurement range, accuracy, response time, calibration requirements, data logging capabilities, and any specific application requirements.