MH-411D-LOW NDIR Infrared CO2 Sensor

  • • High sensitivity, high resolution, low power consumption, Fast response time
  • • Output method: UART, analog voltage signal
  • • Temperature compensation, excellent linear output
  • • Long lifespan, Excellent stability, Anti-poisons, anti-vapor interference

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  • Principle Introduction
Principle Introduction:
MH-441D infrared gas sensor is a miniature universal intelligent sensor, which adopts NDIR theory to detect concentration of CH4 in air and has good selectivity, stable performance, long life, also is independent of Oxygen. The inside temperature sensor could be used for temperature compensation. This miniature infrared gas sensor is developed by the tight integration of mature infrared absorbing gas detection technology, micro machine workout and superior circuit design.
It is convenient in use and also instead of catalytic component directly, widely used in various occasions with flammable and explosion hazard gas.
Applications :
Widely used for HVAC refrigeration,
industrial-process control and safety protection,
agriculture and animal husbandry.
Technical parameters :

Tips:For more parameter information, please refer to the latest manual provided by salesman.

Model

MH-411D-LOW

Detection Gas

CO2

WorkingVoltage

3.6~5VDC(Need to be powered by safety barrier)

Average Current

<30 mA

Detection range

0-10%volOptional(referTable2.)

Interface Level

3.0V

OutputSignal

UART

0.4~2V(Need to be powered by safety barrier)

Warm-up time

3 min

Response time

T90<30s

WorkingTemperature

-20°C ~60°C

WorkingHumidity

0~95%RH(no condensation)

Sizes

Φ20 mm×22.2 mm

Weight

35g

Lifetime

>5 years

Defense Grade

IP54

Power, communication terminal

Intrinsic safety

Ui=7.5VDC,Ii=265mA,

Pi=0.5W,Ci=10μF,Li=0mH

Reference Circuit :
 

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