MQ131 - Henan Hanwei

MQ131 Semiconductor Sensor for Ozone

Henan Hanwei Electronics Co., Ltd www.hwsensor.com MQ131 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 corre.

Features

ty Slope Vc VH RL RH PH Rs S α MQ131 Semiconductor Bakelite (Black Bakelite) Ozone 10-1000ppm Ozone ≤24V DC 5.0V±0.2V AC or DC Basic test loop Vc VRL RL VH GND Adjustable The above is basic test circuit of the sensor. 31Ω±3Ω（Room Tem.） ≤900mW 50KΩ-500KΩ(in 50ppm O3) Rs(in air)/Rs(in 50ppm O3)≥3 (R50ppm/R10ppm O3) 20℃±2℃；65%±5%RH Vc:5.0V±0.1V； VH: 5.0V±0.1V Over 48 hours 2 2 The sensor need to be put 2 voltage, heater voltage （VH） and test voltage （VC） . VH used to supply certified working temperature to the sensor, while VC used to detect voltage (VRL) on load resistance （RL）whom is in ser.