Description
MQ-6 gas sensor is sensitive material used in clean air, low conductivity tin dioxide (SnO2). When the sensor is present in the environment in which the combustible gas, the sensor’s conductivity increases with the concentration of combustible gases in air increases. Using a simple circuit can be converted to the change in conductivity of the gas concentration with the corresponding output signal. MQ-6 gas sensor for propane, butane, liquefied petroleum gas, high sensitivity, natural gas and has a good sensitivity. The sensor can detect a variety of flammable gas, is a low-cost sensors for a variety of applications.
Application module: Suitable for home or industrial of LPG (liquefied petroleum gas), butane, propane, LNG (liquefied natural gas) detection device. Excellent resistance to ethanol steam and smoke interference ability. Module features: 1, high quality double panel design, with the power indicator and TTL signal output; 2, have DO switch signals (TTL) and AO output analog signal output; 3, TTL output valid signal for low level. (when the low output electric signal lights at ordinary times, can be directly pick up SCM or relay module) 4, analog 0 ~ 5 v voltage, the higher the concentration, the higher the voltage. 5, propane, butane, LPG, LNG detection has better sensitivity. 6, there are four screw holes to facilitate positioning; 7, product appearance size: 32 (L) * 20 (W) * 22 (H) 8, has long service life and reliable stability 9, rapid response recovery features Electrical properties: The input voltage: DC5V power (current) : 150 ma The DO output: TTL digital quantity 1 s and 0 s (0.1 and 5 v) AO output: 0.1-0.3 V (relative pollution-free), the highest concentration of voltage is 4 V or so Special remind: sensor, after the power supply need to preheat the 20 s, that are stable, the measured data of sensor heat belongs to the normal phenomenon, because of internal heating wire, if hot is not normal.
