MQ-5 Semiconductor Sensor for Flammable Gas
Review: 5 - "A masterpiece of literature" by , written on May 4, 20020
Great

MQ-5 Semiconductor Sensor for Flammable Gas

Available:In Stock
R$ 14,90

Application:​It is widely used in domestic gas leakage alarm, industrial flammable gas alarm and portable gas detector.
Feature:It has good sensitivity to flammable gas (Especially Propane) in wide range, and has advantages such as long lifespan, low cost and simple drive circuit &etc.

Production Description:
Sensitive material of MQ-5 gas sensor is SnO2, which with lower conductivity in clean air. When the target flammable gas exist, the sensor’s conductivity gets higher along with the gas concentration rising. Users can convert the change of conductivity to correspond output signal of gas concentration through a simple circuit. MQ-5 gas sensor has high sensitivity to butane, propane, methane and can detect methane and propane at the same time. It also can detect kinds of flammable gases, especially LPG(Propane). It is a kind of low–cost sensor for many applications.
Feature:
It has good sensitivity to flammable gas (Especially Propane) in wide range, and has advantages such as long lifespan, low cost and simple drive circuit &etc.
Application:
It is widely used in domestic gas leakage alarm, industrial flammable gas alarm and portable gas detector.

Technical Parameters:

Model

MQ-5

Sensor Type

Semiconductor

Standard Encapsulation

Bakelite, Metal cap

Target Gas

LPG, CH4

Detection range

300~10000ppm(CH4,C3H8)

Standard Circuit

Conditions

Loop Voltage

Vc

5.0V±0.1V DC

Heater Voltage

VH

5.0V±0.1V AC or DC

Load Resistance

RL

Adjustable

Sensor character under standard test conditions

Heater Resistance

RH

30Ω±3Ω (RoomTemp.)

Heater consumption

PH

≤950mW

Sensitivity

S

Rs(in air)/Rs( in 2000ppm C3H8)≥5

Output Voltage

Vs

2.5V~4.0V (in 2000ppm C3H8)

Concentration Slope

α

≤0.6(R3000ppm/R1000ppm C3H8)

Standard test conditions

Tem.  Humidity

20℃±2℃;55%±5%RH

Standard test circuit

Vc:5.0V±0.1V

VH:5.0V±0.1V

Preheat time

Not less than 48 hours

O2content

21%(No less than 18%)

O2 concentration effects initial value, sensitivity and repeatability.

Lifespan

10 years

Application:​It is widely used in domestic gas leakage alarm, industrial flammable gas alarm and portable gas detector.
Feature:It has good sensitivity to flammable gas (Especially Propane) in wide range, and has advantages such as long lifespan, low cost and simple drive circuit &etc.

Production Description:
Sensitive material of MQ-5 gas sensor is SnO2, which with lower conductivity in clean air. When the target flammable gas exist, the sensor’s conductivity gets higher along with the gas concentration rising. Users can convert the change of conductivity to correspond output signal of gas concentration through a simple circuit. MQ-5 gas sensor has high sensitivity to butane, propane, methane and can detect methane and propane at the same time. It also can detect kinds of flammable gases, especially LPG(Propane). It is a kind of low–cost sensor for many applications.
Feature:
It has good sensitivity to flammable gas (Especially Propane) in wide range, and has advantages such as long lifespan, low cost and simple drive circuit &etc.
Application:
It is widely used in domestic gas leakage alarm, industrial flammable gas alarm and portable gas detector.

Technical Parameters:

Model

MQ-5

Sensor Type

Semiconductor

Standard Encapsulation

Bakelite, Metal cap

Target Gas

LPG, CH4

Detection range

300~10000ppm(CH4,C3H8)

Standard Circuit

Conditions

Loop Voltage

Vc

5.0V±0.1V DC

Heater Voltage

VH

5.0V±0.1V AC or DC

Load Resistance

RL

Adjustable

Sensor character under standard test conditions

Heater Resistance

RH

30Ω±3Ω (RoomTemp.)

Heater consumption

PH

≤950mW

Sensitivity

S

Rs(in air)/Rs( in 2000ppm C3H8)≥5

Output Voltage

Vs

2.5V~4.0V (in 2000ppm C3H8)

Concentration Slope

α

≤0.6(R3000ppm/R1000ppm C3H8)

Standard test conditions

Tem.  Humidity

20℃±2℃;55%±5%RH

Standard test circuit

Vc:5.0V±0.1V

VH:5.0V±0.1V

Preheat time

Not less than 48 hours

O2content

21%(No less than 18%)

O2 concentration effects initial value, sensitivity and repeatability.

Lifespan

10 years