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NDIR CO2 Sensor MH-711A

Summary:

The CO2 gas sensor MH-711A uses the NDIR infrared principle. Can be used in explosive atmosphere gas, explosion-proof grade ExdmⅡCT4.

Feature:

* Protection class IP6
* Provide multiple output modes of IIC and 0.4V~2V analog voltage signal

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APPLICATION

Underground Pipe Network

Urban underground pipe gallery is a municipal public facility that implements unified planning, design, construction and maintenance, and is built in the city underground for laying municipal public pipelines.During the construction of the urban underground comprehensive pipe gallery, the workers are actually working in a closed environment or a closed space.

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CO2 Detector

Most people spend about 90% of their time indoors. The air we breathe indoors and our health are affected by many factors, including outdoor air quality, the movements of people indoors, and the design, construction, operation and maintenance of buildings.

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Pollution Source Detection

The septic tank is a device for processing feces and filtering. The principle is that the solidified material is decomposed at the bottom of the pool, and the hydrated objects in the upper layer enter the pipeline and flow away, preventing the pipeline from clogging and providing solidified objects (feces and other garbage)with enough time to hydrolyze.

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PARAMETER

Specification Product Size

Technical Data Sheet

Product Model	MH-711A
Target Gas	CO₂
Working Voltage	4.5 V ~ 5.5V DC
Average Current	< 100mA
Interface Level	3.3V
Measurement Range	0~30%VOL optional (view table 2)
Output Signal	IIC
Output Signal	0.4-2V DC
Warm-up Time	3min
Response Time	T₉₀ < 30s
Working Temp.	-40℃ ~ 70℃
Working Humidity	0 to 95%RH, Non-condensing
Dimension	Φ44×61mm
Weight	350g
Lifespan	>5 years
Ex-marking	Ex dⅡC T6 Gb
Protected Class	IP65

Detection Gas	Measurement Range	Accuracy	Remarks
Carbon Dioxide(CO₂)	0~2000ppm	±50ppm +/-5% reading	Temperature compensation
	0~6000ppm
	0~1%VOL
	0~3%VOL
	0~5%VOL
	0~10%VOL
	0~30%VOL	±15% reading

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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:

NDIR CO2 Sensor Module MH-Z14B

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