In recent years, nitrogen oxides are one of the main pollutants of air pollution, which is seriously harmful to human health. Therefore, the current research work on the monitoring and treatment of nitrogen oxides has received close attention from all walks of life. Nitrogen oxide monitoring is an important way of pollution early warning, pollutant monitoring and treatment effect evaluation, which needs real-time monitoring data provided by nitrogen oxide analyzer. However, in the process of using nitrogen oxide analyzer, we need to calibrate it. So do you know how the NOx analyzer is calibrated? The following is a brief introduction by yi yun Tian:

Calibration steps of NOx analyzer:

1. we need to prepare the corresponding standard gas, align the calibration cover with the probe to be detected by the nitrogen oxide analyzer, and turn on the standard gas.

2. start calibration and wait for the calibration gas to enter the nitrogen oxide analyzer. when it reaches a certain value, the nitrogen oxide analyzer controller in the central control will sound an alarm. at this time, we press the reset key and the alarm will be canceled. After the alarm is canceled, remove the calibrated calibration gas hood, and then close the on-off valve of the container containing standard gas.

3. we record the gas concentration displayed on the central control. we should pay attention during calibration. when using standard gas calibration, the probe of nitrogen oxide analyzer must be cleaned and the standard sample gas must be opened for more than 10 seconds.

To sum up, it is the calibration step of the nitrogen oxide analyzer. In actual use, many factors will affect the accuracy of the detection data of the nitrogen oxide analyzer. Therefore, in order to ensure the accuracy of the detection data, we need to calibrate the nitrogen oxide analyzer regularly, so as to effectively reduce the error of the detection results to a large extent, thereby improving the accuracy.