Combustible Gas Sensor

Combustible Gas Sensor MQ-D5

Specification:

MQ-D5 type semiconductor combustible gas sensor is mainly used for leak detection, monitoring, alarm and intelligent gas leak alarm system on combustible gases (natural gas, methane, liquefied gas , butane, propane, manufactured gas and hydrogen). It uses advanced flat production process, from the heater and micro- Al2O3 forming a metal oxide semiconductor material constituting the ceramic substrate , with the electrode wire leads, encapsulated in a metal tube housing, cap . When detecting the presence of gas, the gas concentration in air is higher, the higher the conductivity sensor . Using a simple circuit that can change the conductivity of the gas is converted to an output signal corresponding to the concentration.

Character:                                          

1. High sensitivity to Methane gas

2. Low power consumption                        

3. Fast response and resume

4. Good stability and long life                        

5. Simple drive circuit

6. Small size

Application:

1. Domestic gas leakage detector

2. Industrial gas detector

3. Portable gas detector

Technical Parameter:

Gas: combustible gas, CH4

Detection range: 300 to 10000ppm

Characteristic gas: 5000ppm Methane gas
Sensitivity: R in air / R in typical gas ≥ 5
Load Resistance: 1～50Ω adjustable
Response time: ≤ 30s
Recovery time: ≤ 60s
Heating current: <=80mA
Heating voltage: 5V
Measuring voltage: 5～50V
Operating Conditions Ambient temperature: -20～+55℃
                         Humidity: ≤ 95% RH
                         Environmental oxygen content: 21%
Storage conditions Temperature: -20～+70℃ 

                           Humidity: ≤ 70% RH