Why is your CO₂ detector jumping around like crazy?
1, Numerical fluctuations caused by environmental factors
One of the main reasons is the change in environmental airflow. The distribution of carbon dioxide in the air is inherently uneven. If the detection environment has windows for ventilation, air conditioning for air supply, or personnel walking to drive airflow, it will cause rapid changes in the concentration of carbon dioxide around the carbon dioxide detector, leading to fluctuations in the values.
Personnel activities can also affect numerical values. When multiple people gather near the detector, the amount of exhaled carbon dioxide increases, and the value will significantly rise; After personnel leave or disperse, the concentration gradually decreases. Even if a single person is present, the periodic changes in breathing rhythm may allow high-sensitivity instruments to capture subtle fluctuations, manifested as small numerical jumps.
In addition, sudden changes in environmental temperature and humidity may also interfere with detection. When the temperature or humidity suddenly rises or drops, the working state of some sensors will be affected, indirectly leading to unstable values, which is more likely to occur in humid environments. If there are other gases such as alcohol and smoke near the carbon dioxide detector, it may also have a cross effect on the sensor, causing abnormal fluctuations in the values.
2, The influence of the characteristics of the instrument itself
There are differences in response speed and stability among carbon dioxide detectors with different accuracies. High precision instruments are more sensitive to changes in concentration and can record even small fluctuations, displaying numerical changes; However, some instruments with lower costs may experience numerical drift and irregular fluctuations in response to environmental changes due to insufficient sensor stability.
In addition, instrument calibration is also crucial. If the sensor is not calibrated for a long time or the calibration process is not standardized, the measurement accuracy of the sensor will decrease, which may also lead to unstable values and fluctuating high and low.
