MH-741A Infrared CH4 Gas Sensor

Industrial Flammable Gas Sensor

Applications :

*Widely used for industrial field instrumentation, industrial-process control and safety protection.

Product Advantages:
  • *High sensitivity, high resolution, low power consumption
  • *Output method: UART, analog voltage signal, etc.
  • *Quick response
  • *Temperature compensation, excellent linear output
  • *Excellent stability, Long lifespan
  • *Anti-poisons, anti-vapor interference
  • *Detect combustible gas concentration matching with flame-proof marked detector in area 1&2 explosive environments which mix of ⅡA, ⅡB, ⅡC and T1-T6 flammable gases, vapors and air
Product Description:

MH-741A is a universal type intelligent sensor to detect CH4 gas,taking advantage of non-dispersive infrared (NDIR) principle. With high selectivity, no oxygen dependence, high performance and long lifespan features, MH-741A also has built-in temperature compensation feature. MH-741A is a compact and high-performance sensor based on infrared absorption of gas detection technology, micro-machining and sophisticated circuit design.

Technical Parameters:
Product Model MH-741A
Gas Detected Combustible gas (see Table 2 for details)
Working Voltage 4.5 V ~ 5.5V DC
Average Current < 100mA
Interface Level 3.3V
Measurement Range 0~100%VOL optional (view table 2)
Output Signal IIC
0.4-2V DC
Warm-up Time 3min
Response Time T90 < 30s
Working Temperature -40℃ ~ 70℃
Working Humidity 0 to 95%RH, non-condensing
Dimension Φ44×61mm
Weight 350g
Lifespan >5 years
Ex-marking Ex d ⅡC T6 Gb
Protected Class IP65
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