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How do i know if my co2 detector is working

How CO2 detector works

A CO2 detector is a device that detects the carbon dioxide content in indoor air. Its core is to detect the concentration of carbon dioxide in the air through a carbon dioxide gas sensor. The working principle of the carbon dioxide sensor is to use a technology called NDIR (non-dispersive infrared) to measure the concentration of carbon dioxide through infrared rays. The NDIR sensor radiates infrared light into the sample gas through a light source. When the light passes through the intact sample gas, the amount of infrared light absorbed by the sample gas is proportional to the concentration of carbon dioxide in the sample. The NDIR sensor will measure the concentration of carbon dioxide through changes in light intensity of the sample gas to determine whether the indoor air reaches the standard.

Possible Problems with Carbon Dioxide Sensors

1.Sensor detection parameters are inaccurate

The parameters used by the sensor to detect indoor carbon dioxide concentration may be inaccurate or have excessive errors due to problems with the sensor itself. If there is a large difference between the carbon dioxide concentration detected by the sensor and the actual concentration, the sensor needs to be repaired or replaced.

2.Sensors are susceptible to environmental influences

Carbon dioxide sensors are easily affected by the surrounding environment, such as air humidity, temperature, etc. If the sensor is in an environment with high humidity or high temperature, the working performance of the sensor may be affected, resulting in excessive detection errors.

How do i know if my co2 detector is working?

1.Calibrate the sensor

Calibrating the sensor is an important means to determine whether the co2 detector is working properly. Sensor calibration aims to determine whether the sensor’s output signal matches the actual measured value. For specific methods of calibrating the sensor, please refer to the instructions provided by the manufacturer.

2.Replace sensors regularly

The carbon dioxide sensor needs to be replaced regularly to ensure the normal operation of the sensor. The service life of a sensor is usually between 2-5 years, depending on factors such as the sensor’s usage environment and workload.

3.Observe the sensor indicator light

When some carbon dioxide sensors detect indoor air quality, they will be equipped with indicator lights to reflect the working status of the sensor. When the sensor is working properly, the indicator light is usually green. If the indicator light is yellow or red, the sensor needs to be inspected or replaced.

In short, carbon dioxide sensors play a vital role in indoor air quality detection. By understanding the working principle and common problems of carbon dioxide sensors, as well as methods to determine whether the sensor is working properly, you can ensure the accuracy and reliability of monitoring results and provide effective guidance for improving indoor air quality.

 

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