Embed Size (px)
Citation preview
1
Visit us @ www.thearyatechnologies.com
Email: [email protected]
Contact us@ 0253-2512131
ATK-MQ131-GAS SENSOR
GAS SENSOR
Overview
Sensitive material of MQ-131 gas sensor is SnO2, which with lower conductivity
in clean air. When the target combustible gas exist, The sensor’s conductivity is
more higher along with the gas concentration rising. Please use simple electro
circuit, Convert change of conductivity to correspond output signal of gas
concentration.
MQ-131 gas sensor has high sensitivity detecting Of O3, also sensitive to CL2,
NO2, etc
Features
Operating voltage: 5V Provide both digital and analog output Adjustable sensitivity Output LED indicator Compatible with Arduino and Microcontroller TTL Compatible Onboard holes for easy installation
2
Applications
Consumer electronics.
They are used in air quality control equipments for
buildings/offices, are suitable for detecting Of O3.
Specifications
Parameter Min Typ Max Units
Working Voltage 4.5 5 8 Volts
Range 0-4.6 Volts
Pin Diagram
Pin Pin Name
Pin Name
+5V I/P Regulated 5V supply input
GND GND Ground level of power supply
DO O/P Digital Output to external devices
AO O/P Analog Output to ADC
Note: Initially the sensor gives high output so power on the sensor for 15minites
because it needs initially heating voltage then and then it gives proper output.
More info refer the datasheet for the same.
Recommend separate power supply because its required more current to heat.
