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Principle Introduction
| The Carbon Dioxide(CO2) gas sensor is for air quality. It is chemical type gas sensor that adopts solid electrolyte cell principle, used to detect carbon dioxide. When sensors are exposed to CO2, battery is positive and negative electrode reaction, the CO2 sensor produces electromotive force between sensitive electrode and reference electrode, the output voltage signal can be detected carbon dioxide. |
Features
High sensitivity to CO2 Low cost, long life Good stability Simple application circuit Low power consumption |
Application
| Air purifier, HAVC refrigeration, Indoor air quality monitoring, Intelligent integrated ceiling, Range hood, air conditioner |
Technical Parameters
| Item | Specification |
| Target Gas | CO2 |
| Measurement Range | 350～10000ppm (CO2) |
| Heater Voltage(VH) | 5V±0.1V AC or DC |
| Heater Resistor(RH) | 60Ω±5Ω(Room Temp.) |
| Power consumption(PH) | 450mW±50mW |
| Sensitivity | Rs(in air)/Rs(50ppm alcohol)≥ 5 |
| Concentration Slope | ≤0.6 (R50ppm/R30ppm alcohol) |
| Testing condition | 20±2℃, 55%±5%RH |
| Zero EM F | 200-500mV |
| Output signal △EM F | ≧25mV/1000ppmCO2 v |
