Infrared CH4 Sensors
MH-740A infrared gas sensor adopt NDIR theory to detect concentration of CH4, which is good selection
Infrared CH4 Industrial Sensors
1. Application
MH-740A sensor is a common intelligent sensor in small sized to detect CH4 in air taking
advantages of non-dispersive infrared principle. It has the advantages of good selectivity,
oxygen independence, stable performance and long life. MH-740A 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.
2. Product Mode & Explosion-proof Implication
Product Mode:MH-740A
Explosion Proof:ExmbIICT4
3. Specification
Power Supply | 4.5~5.5V DC |
Working Current | 120mA |
Interface Power | 5V |
Detected Range | 0~5%vol(0~100%vol can be specified) |
Resolution | 1%FSD |
Warm-up Time | 90s |
Response Time | T90<30s |
Repeatability | Zero < ±100ppm |
SPAN <±500ppm | |
Long-time Drift | Zero < ±300ppm/month |
SPAN < ±500ppm/month | |
Temperature | -40°C ~70°C |
Humidity | 0~95%RH |
Life | >5 year |
Explosion-proof | ExdmIICT4 |
Protection Class | IP6 |