Infrared Carbon Dioxide CO2 Gas Sensor - MH-711A

  • Infrared Carbon Dioxide CO2 Gas Sensor
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• ​Operating voltage: 4.5V~5.5V DC
• ​Humidity range: 0~95%RH
• ​Operating voltage: 4.5~5.5V DC
• ​Current: 120mA
• ​Range: 0~100%vol range of optional
• ​Response time T90​: <30s
• ​Temperature range: -40°C ~70°C

  • Model Number: MH-711A
Quantity:
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Product Specification

MH-711A Infrared CO2 Sensor Application
MH-711A is a common intelligent sensor in small sized to detect CO2 in air taking advantages of non-dispersive infrared principle. It has the advantages of good selectivity, oxygen independence, stable performance and long life. MH-711A is an infrared gas sensor in small sized combining mature technology for infrared absorption detection and micro-machining, superior circuit design closely. The sensor can be widely used in detection for fire disaster, explosive gases.


Explosion Proof: ExmbⅡCT4


MH-711A Infrared CO2 Sensor Characteristics
• High Sensitivity and resolution
• 5V constant power supply, low power consumption
• IIC and 0.4~2V analog voltage signal variety of output
• Fast response and resume
• Temperature compensation and excellent linear output
• Excellent stability
• Long life
• Anti-poisons, anti-vapor interference



MH-711A Infrared CO2 Sensor Working condition
• Operating voltage: 4.5V~5.5V DC
• Temperature range: -40°C ~70°C
• Humidity range: 0~95%RH


MH-711A Infrared CO2 Sensor Technical Data

Operating voltage

4.5~5.5V DC

Current

120mA

Output

IIC 0.4V~2V analog voltage signal

Interface Level

5V

Range

0~100%vol range of optional (Table 2)

Preheat time

90s

Response time T90

<30s

Repeatability

Zero point < ±10ppm

SPAN <±30ppm

Long term drift

Zero point  < ±30ppm/month

SPAN < ±30ppm/month

Temperature range

-40°C ~70°C

Humidity range

0~95%RH

Operating life

>5 years

Explosion levels

ExdmⅡCT4

Protection class

IP54


MH-711A Infrared CO2 Sensor Range and resolution

Gas name

Molecular formula

Sensor type

Range

Resolution

Note

Carbon dioxide

CO2

CO2

0~2000ppm

1ppm

Temperature compensation  

0~6000ppm

1ppm

Temperature compensation  

0~1%VOL

1ppm

Temperature compensation  

0~3%VOL

1ppm

Temperature compensation  

0~5%VOL

10ppm

Temperature compensation  

0~10%VOL

10ppm

Temperature compensation  

0~30%VOL

10ppm

Temperature compensation  

0~50%VOL

100ppm

Temperature compensation  

0~100%VOL

100ppm

Temperature compensation  


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