Semiconductor Sensor for Ozone Good sensitivity to Ozone in wide range
Semiconductor Sensor for Ozone
Sensitive material of MQ131 gas sensor is SnO2, which with lower conductivity in clean air. When Ozone gas exists. The sensor’s conductivity is more higher along with the gas concentration rising. Please use simple electrocircuit, Convert change of conductivity to correspond output signal of gas concentration.
MQ131 gas sensor has high sensitity to Ozone, also sensitive to CL2, NO2, etc.
Character
Good sensitivity to Ozone in wide range
* High sensitivity to Ozone
* Long life and low cost
* Simple drive circuit
Application
* Domestic Ozone concentration overload Detector
* Industrial Ozone concentration overload Detector
* Portable Ozone concentration overload Detector
Model No. | MQ131 | ||
Sensor Type | Semiconductor | ||
Standard Encapsulation | Bakelite (Black Bakelite) | ||
Detection Gas | Ozone | ||
Concentration | 10-1000ppm Ozone | ||
Circuit | Loop Voltage | Vc | ≤24V DC |
Heater Voltage | VH | 5.0V±0.2V AC or DC | |
Load Resistance | RL | Adjustable | |
Character | Heater Resistance | RH | 31Ω±3Ω(Room Tem.) |
Heater consumption | PH | ≤900mW | |
Sensing Resistance | Rs | 50KΩ-500KΩ(in 50ppm O3) | |
Sensitivity | S | Rs(in air)/Rs(in 50ppm O3)≥3 | |
Slope | α | (R50ppm/R10ppm O3) | |
Condition | Tem. Humidity | 20°C±2°C 65%±5%RH | |
Standard test circuit | Vc:5.0V±0.1V VH: 5.0V±0.1V | ||
Preheat time | Over 48 hours | ||
low cost ozone sensor
