O3 Gas Sensor Good selectivity and sensitivity to Onze Best choice for your application Stable performance& low price
O3 Gas Sensor
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
Technical Data
Model No. | MQ131 | ||
Sensor Type | Semiconductor | ||
Standard Encapsulation | Bakelite (Black Bakelite) | ||
Detection Gas | Ozone | ||
Concentration | 10-1000ppb | ||
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 100ppb O3) | |
Sensitivity | S | Rs(in air)/Rs(in 50ppb O3)≥3 | |
Slope | α | ≤0.6(R500ppb/R100ppb 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 | ||
O3 Gas Sensor
