MP-7 Carbon Monoxide Sensor

MP-7 type carbon monoxide detection planar semiconductor gas sensor adopts advanced planar thick film production process. It is composed of heater and metal oxide semiconductor material formed on micro Al2O3 ceramic substrate. inside the cap. The high and low temperature cycle detection method is used to detect carbon monoxide (1.5V), and the impurity gas adsorbed at low temperature is cleaned at high temperature (5.0V). The conductivity of the sensor increases as the concentration of carbon monoxide gas in the air increases, and a simple circuit can convert the change in conductivity into an output signal corresponding to the gas concentration.

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Sensor Features
This product has good sensitivity to carbon monoxide in a wide concentration range, and has the characteristics of small size, long life, low cost, and simple driving circuit.

 

main application
Widely used in household carbon monoxide gas leak alarms, industrial carbon monoxide gas alarms and portable carbon monoxide gas detectors.

 

Technical indicators

Product number

MP-7

product type

Planar Semiconductor Gas Sensor

standard package

metal package

detect gas

carbon monoxide

Detection concentration

50~1000ppm CO

Standard Circuit Conditions

loop voltage

Vc

≤10V DC

heating voltage

VH

5.0V±0.1V AC or DC(high temperature)
1.5V±0.1V AC or DC(low temperature)

heating time

TL

60S±1S(high temperature),90S±1S(low temperature)

Load Resistance

RL

adjustable

Gas sensor characteristics under standard test conditions

heating resistance

RH

105±10Ω(room temperature)

Heating power consumption

PH

≤240mW

Sensitivity

S

Rs(in air)/Rs(in 100ppm CO)≥3

The output voltage

Vs

2.5V ~ 4.3V (in 100ppm CO)

Concentration slope

α

≤0.6(R300ppm/R50ppm CO)

environmental conditions

Operating temperature

Tao

-10℃~50℃

Storage temperature

Tas

-20℃~70℃

Relative humidity

RH

Less than 95% RH

oxygen concentration

O2

21%±1%(not less than 18%)

Changes in Oxygen Concentration Affect Sensor Sensitivity

Preheat time

Not less than 48 hours

oxygen concentration

21% (not less than 18%, (the oxygen concentration will affect the initial value, sensitivity and repeatability of the sensor, please consult when using it under low oxygen concentration)

life

10 years


Note: Product parameters are subject to change without prior notice

production workshop

 

patent certificate

You can contact us through the online message and online customer service on the right, or you can call our national service hotline: 086-0371-60932951.

 

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