low cost ozone sensor

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