Product Introduction
I.Infrared Methane Sensor(CH4 Sensor) Product Description
MH-440D Infrared gas sensoris a universal, intelligent, micro sensor. It utilizes non-dispersive infrared (NDIR) principle to detect CH4 in the air, featuring excellent selectivity, no oxygen dependency, stable performance, and long lifespan. Built-intemperature sensorenables temperature compensation. The sensor is easy to use, with complete gas detection, analog voltage signal output, and serial communication functions; it can directly replace catalytic combustion elements and is widely used in various occasions where flammable and explosive gases exist.
II. Infrared Methane Sensor (CH4 Sensor) Basic Features
Measurement Principle: Non-dispersive infrared measurement
Detected Gas: Methane
Range: 0~5%vol (0~100%vol optional)
Power Supply: 3~5V DC
Signal Output: 0.4~2V DC; UART communication output
Gas Sampling Method: Diffusion
Operating Temperature: -20°C ~60°C
Dimensions: 20mm×16.6mm (diameter×height)
III. Infrared Methane Sensor (CH4 Sensor) Features
Excellent selectivity, no oxygen dependency, stable performance, long lifespan. Built-in temperature sensor enables temperature compensation.
IV. Infrared Methane Sensor (CH4 Sensor) Main Applications
Widely used in various occasions where flammable and explosive gases exist
V. Infrared Methane Sensor (CH4 Sensor) Technical Specifications
| Operating Voltage |
3~5V DC |
| Operating Current |
75~85mA |
| Interface Level |
3V |
| Measurement Range |
0~5%vol (0~100%vol optional) |
| Output Signal Range |
0.4~2V DC |
| Resolution |
1%FSD |
| Warm-up Time |
90s |
| Response Time |
T90<30s |
| Repeatability |
Zero < ±100ppm |
| SPAN <±500ppm |
|
| Long-term Drift |
Zero < ±300ppm/month |
| SPAN < ±500ppm/month |
|
| Temperature Range |
-20°C ~60°C |
| Humidity Range |
0~95%RH |
| Lifespan |
>5 years |
| Explosion-proof Rating |
ExmbⅡT6 |
| Protection Rating |
IP6 |
| Dimensions |
20×16.6 |
| Weight |
15g |
