โมดูลเซนเซอร์ตรวจจับแก๊ส MQ5 LPG, Natural Gas

MQ-5 โมดูลเซนเซอร์ตรวจจับแก๊ส LPG, Natural Gas

วัดระดับความเข้มข้นของแก๊สตั่งแต่ 200 ถึง 10000 ppm

สำหรับใช้ในอุตสาหกรรมหรือในครัวเรือน มีความไวในการตรวจจับสูง

รายละเอียด Data Sheet

http://www.seeedstudio.com/depot/datasheet/MQ-5.pdf

MQ5 liquefied natural gas city gas sensor module gas sensor

The gas sensing material used in MQ-5 gas sensors is tin dioxide (SnO2) with lower conductivity in clean air. When there is a flammable gas in the environment where the sensor is located, the conductivity of the sensor increases as the concentration of flammable gas in the air increases. The change in conductivity can be converted to an output signal corresponding to the gas concentration using a simple circuit. The MQ-5 gas sensor has high sensitivity to butane, propane and methane, and has a good balance between methane and propane.This sensor detects a wide range of flammable gases, especially natural gas, and is a low-cost sensor for a wide range of applications.

It is suitable for household or industrial monitoring devices for liquefied gases, natural gas and gas. Excellent resistance to ethanol and smoke. 

Module features:

1, using high-quality double-panel design, with power indication and TTL signal output indication; 

2, with DO switch signal (TTL) output and AO analog signal output; 

3, TTL output valid signal is low. (When the output is low, the signal light is on, it can be directly connected to the MCU or relay module.) 

4. The voltage of the analog output is higher. The higher the concentration, the higher the voltage. 

5. It has good sensitivity to gas and natural gas detection. 

6, there are four screw holes for easy positioning; 

7, product dimensions: 32 (L) * 20 (W) * 22 (H) 

8, with long-term service life and reliable stability 

9, fast response recovery characteristics

Electrical performance:

Input voltage: DC5V Power consumption (current): 150mA 

DO output: TTL digital quantity 0 and 1 (0.1 and 5V)

AO output: 0.1-0.3V (relatively non-polluting), the highest concentration voltage is about 4V. 

Special reminder: After the sensor is energized, Need to preheat about 20S, the measured data is stable, sensor heating is a normal phenomenon, because there is a heating wire inside, if it is hot, it is not normal.