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Flat Semiconductor Alcohol Sensor MP-3B

Summary:

MP-3B model with advanced planar construction is comprised of heater and metal oxide semiconductor material of subminiature Al₂O₃ ceramic plate, fetch out electrode down-lead, encapsulation in metal base and cap. When the target gas (alcohol) exists , The sensor's conductivity is more higher along with the gas concentration rising. Please use simple electrocircuit, Convert change of conductivity to correspond output signal of gas concentration.

Feature:

* Lower consumption
* Small size
* Fast response and resume
* Highest sensitivity
* Excellent stability and long life
* Easy circuit and big signal output
* Excellent selectivity

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APPLICATION

Vehicle Alcohol Test

The picture shows a common "ignition interlock system" with an alcohol detection function in the United States. This lock is connected to the ignition system of the car. Before ignition, the driver must blow air to ensure that the alcohol concentration in the body does not exceed the standard. and the car can start.

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Alcohol Detector

Strengthen the punishment of drinking and driving in all the country to reduce the vicious traffic accidents caused by drunk driving. This involves testing a person's alcohol level and using equipment to do the testing. An alcohol detector is an effective tool for measuring the alcohol content in the human body.

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PARAMETER

Specification Product Size

Technical Data Sheet

Model			MP-3B
Sensor Type			Flat Surfaced Semiconductor
Standard Encapsulation			Metal Cap
Target Gas			Alcohol gas
Detection range			0~500ppm alcohol
Standard Circuit Conditions	Loop Voltage	V_C	≤24V DC
	Heater Voltage	V_H	2.5V±0.1V AC or DC
	Load Resistance	R_L	Adjustable
Sensor character under standard test conditions	Heater Resistance	R_H	23.5Ω±4.5Ω (room tem.)
	Heater consumption	P_H	≤350mW
	Resistance of sensitive material	R_S	5KΩ～50KΩ (in 50ppm C₂H₅OH)
	Sensitivity	S	Ro(in air)/Rs(50ppm C₂H₅OH)≥3
	Concentration Slope	α	≤0.6(R_3000ppm/R_50ppm C₂H₅OH)
Standard test conditions	Tem. Humidity		22℃±2℃；55%±5%RH
	Standard test circuit		V_C: 2.5V±0.1V V_H: 2.5V±0.1V
	Preheat time		Not less than 48 hours

Free Guide! Learn the Parameter Differences of Similar Sensors

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As a pioneer in gas sensor based solutions with the advanced processes, technologies and products, Winsen offers a wide range of gas sensors:

Electrochemical Alcohol Sensor ME2-C2H5OH-13×13

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