Nitrogen dioxide(NO2) sensors for industrial environments, industrial exhaust gas detection

With the rapid development of industrial production and enterprises, a large amount of industrial waste gas is emitted into the big air, reducing the quality of the atmospheric environment, bringing serious harm to people's health and causing huge losses to the national economy.

The role of NO2 sensors in industrial exhaust gas detection.

Nitrogen dioxide (NO2) is an important industrial gas, which can be used in industrial water treatment as an eliminating agent, as well as in the bleaching of pulp and fibres from, the refining of flour, grease and sugar, and the dehairing of leather.

At the same time, nitrogen dioxide is one of the toxic gases, reddish-brown in colour paramagnetic with a pungent odour and easily soluble in water. Low concentrations (4 ppm) of nitrogen dioxide can paralyse the nose and may lead to over-absorption, and long-term exposure to NO2 concentrations of 40 to 100 mg/m3 can have serious health effects.

Real-time monitoring of NO2 gas in plants is therefore necessary to avoid the health hazards of NO2 gas for staff and the safety of production.

For air quality monitoring, we have launched the intelligent "four gases and two dusts" (SO2, NO2, CO, O3, PM2.5, PM10) sensor, which is our new intelligent sensor specifically for gas detection. The gas in the detected area of the instrument flows freely into the gas sensor.

The sensor mainly solves the problems of various types of gas detection, incompatible sensors, complicated calibration, and restrictions on the replacement of core devices; it is easy to operate, accurate and reliable.

Product features 

●Adopting foreign original imported four-electrode gas sensor, with stable performance and high resolution.

●Monitoring NO2, CO, SO2, O3 gases, optional PM2.5, PM10 dust parameters.

● Modular product design, convenient for later maintenance.

This product is suitable for use in enterprise park monitoring, municipal environmental monitoring, mobile environmental monitoring, traffic pollution environmental monitoring, residential area or park environmental monitoring, livestock breeding and other fields.

The four gas and two dust sensors innovatively combine the six pollutant parameters PM2.5, PM10, CO, SO2, NO2 and O3 through a highly integrated structure to achieve 24-hour continuous online monitoring of each pollutant parameter data by gas and transmit the monitored data to people at one time.

PM2.5, PM10 Technical Parameters：

Dust monitoring uses the laser scattering method to measure particle concentrations. When the particles pass through the light sensitive area formed by the focused laser, the light scattered by the particles is collected by a micro photoelectric detector on the detection window. The detector converts the received light intensity signal into a voltage signal, the density of the signal corresponds to the unit concentration value of the particles, the dust concentration value is converted into a coefficient and output in real time through the data interface.

Gas sensor technical parameters：

The gas sensor adopts the principle of electrochemistry to monitor atmospheric concentration, using foreign original imported four-electrode gas sensor, the four-electrode sensor has an extra auxiliary electrode for compensating the zero current, so that it has better response time and anti-interference characteristics.