MH-440D Sensor Datasheet

MH-440D Datasheet, PDF, Equivalent


Part Number

MH-440D

Description

NDIR Infrared CH4 Sensor

Manufacture

Winsen

Total Page 5 Pages
Datasheet
Download MH-440D Datasheet


MH-440D
Zhengzhou Winsen Electronics Technology Co., Ltd.
www.winsen-sensor.com
MH-440D NDIR Infrared CH4 Sensor (V2.7)
1. Introduction
MH-440D 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.
2.Features
High sensitivity, high resolution, low power consumption
Output method: UART, analog voltage signal
Temperature compensation, excellent linear output
Excellent stability, Long lifespan
Anti-poisons, anti-vapor interference
Can replace catalytic type gas sensor directly
3.Applications
Widely used for HVAC refrigeration, air monitoring indoor, industrial-process control and safety protection,
agriculture and animal husbandry.
4.Main Parameters
Fig1.Technical Parameters
Detection Gas
MethaneCH4
Working Voltage
3.6~5V DC
Average Current
85mA
Interface Level
3.0V
Detection range
0~10%vol(selectable, refer fig2.)
Output Signal
UART
0.4~2V DC
Warm-up time
3 min
Response time
T90<30s
Working Temperature
-20°C ~ 60°C
Working Humidity
0~95%RH(no condensation)
Sizes Φ20×21.4mm
Weight
35g
Lifetime
>5 years
Defense Grade
IP54
Target Gas
Methane
Molecular
Formula
CH4
Fig2.Measuring Range and Resolution
Measuring Resolution Note
Range
0~5%VOL
0.05%VOL Temperature compensation
0~10%VOL 0.1%VOL
Temperature compensation
Tel: 86-371-67169097 Fax: 86-371-60932988
1
Email: sales@winsensor.com

MH-440D
Zhengzhou Winsen Electronics Technology Co., Ltd.
5.Struction Size
www.winsen-sensor.com
Pin definition
Pin 2-Vin power supply
Pin 1-GND
Pin 4-Vout (0.4~2V)
Pin 3-UART (RXD) 0~3.0V data input
Pin 5- UART (TXD) 0~3.0V data output
Tel: 86-371-67169097 Fax: 86-371-60932988
2
Email: sales@winsensor.com


Features Zhengzhou Winsen Electronics Technology Co., Ltd. www.winsen-sensor.com MH-44 0D NDIR Infrared CH4 Sensor (V2.7) 1. Introduction MH-440D infrared gas sens or is a miniature universal intelligent sensor, which adopts NDIR theory to d etect concentration of CH4 in air and h as good selectivity, stable performanc e, long life, also is independent of Ox ygen. The inside temperature sensor co uld be used for temperature compensatio n. This miniature infrared gas sensor is developed by the tight integration o f mature infrared absorbing gas detect ion technology, micro machine workout a nd superior circuit design. It is con venient in use and also instead of cata lytic component directly, widely used in various occasions with flammable and explosion hazard gas. 2.Features  High sensitivity, high resolution, low power consumption  Output method: UA RT, analog voltage signal  Temperatu re compensation, excellent linear outpu t  Excellent stability, Long lifespan  Anti-poisons, anti-vapor int.
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