1 PC MH-T7042A Infrared CH4 Gas Sensor

MH-T7042A 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-T7042A also has built-in temperature compensation feature. MH-T7042A is a compact and high-performance sensor based on infrared absorption of gas detection technology, micro-machining and sophisticated circuit design. Application Widely used for industrial field instrumentation, industrial-process control and safety protection Features High sensitivity, high resolution, low power consumption Output method: IIC, 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 Specifications Product Model MH-T7042A Gas Detected Combustible gas (see Table2) Working Voltage 4.5~5.5V DC Average Current < 100mA Interface Level 3.3V Measurement Range 0~100%VOL optional (table 2) Output Signal UART Warm-up Time <2minutes Response Time T90 < 30s Working Temperature -40℃ ~ 70℃ Working Humidity 0 to 95%RH, non-condensing Dimension Φ51×65mm Weight 450g Lifespan >5 years Explosion-proof sign Ex db ⅡC T6 Gb Protection Grade IP65 Table 2 Gas Name Molecular Formula Detection Range Resolution Precision Note Methane CH4 0-5% Vol 0.01% Vol 0~50% FS (±3%FS) 50%~100% FS (±5%FS) With Temperature compensation Methane CH4 0-10% Vol 0.01% Vol Methane CH4 0-100% Vol 0.1% Vol Propane C3H8 0-2.2% Vol 0.01% Vol Chloromethane CH3CL 0-8.1% Vol 0.01% Vol Acetylene C2H2 0-2.3% Vol 0.02% Vol Ethane CH3CH3 0-3.0% Vol 0.03% Vol Isobutene C4H10 0-1.8% Vol 0.018% Vol Gasoline C3-C12 0-1.1% Vol 0.01% Vol 0~50% FS (±5%FS) 50%~100% FS (±10%FS) No Temperature compensation Methanol CH3OH 0-5.5% Vol 0.06% Vol Dichloromethane CH2CL2 0-15% Vol 0.15% Vol Toluene C7H8 0-1.2% Vol 0.012% Vol Alcohol C2H5OH 0-3.3% Vol 0.033% Vol Oxirane C2H4O 0-3.0% Vol 0.03% Vol Acetic acid CH3COOH 0-4.0% Vol 0.04% Vol Ethyl acetate CH3COOC2H5 0-2.0% Vol 0.02% Vol   * The description and specifications might be changed without notice. Please contact us for the latest information before placing orders.