YJJ 3NO2-500CT 057-3000-100 Electrochemical Nitrogen Dioxide NO2 Sensor for Flue Gas Emission

Product Description:

YJJ 3NO2-500CT 057-3000-100 Electrochemical Nitrogen Dioxide NO2 Sensor Flue Gas Emission Harsh Industrial Environments

Features:

3NO2-500CT is a three-electrode electrochemical nitrogen dioxide (NO2) sensor, primarily used for quantitative detection of NO2 concentrations ranging from 0 to 500 ppm. It is suitable for harsh industrial environments such as industrial emissions and process control, and can directly replace the mainstream 3-series NO2 sensors. It offers stable linear output and strong anti-interference capabilities.
Core parameter description (20℃, standard atmospheric pressure)
Parameter Value Remarks
Detected gas Nitrogen dioxide (NO2) Three-electrode electrochemical principle
Range 0-500ppm Maximum overload 1000ppm
Sensitivity -0.37±0.07μA/ppm Current signal is proportional to the concentration, and the signal is output in a negative direction
Response time (T90) ≤35s Quickly captures concentration changes
Baseline (20℃) ±2ppm Initial zero position deviation is small
Baseline drift (-20℃~50℃) < -1ppm Controllable drift in a wide temperature range
Resolution 0.5ppm Meet the routine monitoring accuracy
Linearity Linear Zero bias 0mV, no additional bias circuit required
Operating temperature -20℃~50℃ Adapt to industrial and outdoor environments
Pressure range 1 standard atmosphere ±10% Compatible with routine conditions
Humidity range 15%~90% RH (no condensation) Avoid the influence of condensation on performance
Long-term stability <2% signal value/month Reliable long-term monitoring data
Service life 3 years (in air) Storage temperature 10℃~30℃
Safety integrity Maximum open-circuit voltage 1.3V, maximum short-circuit current < 1mA Compatible with explosion-proof scenarios
Main applications
Industrial flue gas emission monitoring: Used for real-time monitoring of NO2 emissions from fixed pollution sources such as waste incineration plants, nitric acid plants, and electroplating plants, meeting the continuous monitoring requirements of environmental protection regulations for chimney emissions.
Industrial safety and process control: In production processes involving NO2, such as chemical synthesis, metal processing, and welding, real-time monitoring of leaks and process gas concentrations to ensure personnel safety and production stability.
Environmental air quality monitoring: Integrated into air quality monitoring stations or mobile monitoring equipment, used for grid-based monitoring of NO2 concentrations in urban and industrial park environments, assisting in pollution source tracing and governance decision-making.
Equipment and instrument integration: As the core sensing element, embedded in portable NO2 detectors, online analyzers, etc., suitable for complex working conditions such as explosion-proof and outdoor environments, supporting rapid replacement of mainstream 3-series sensors, reducing maintenance costs.

Specifications: