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LEL Sensor Response

Relative Response Curves

Relative Response Curves

Using a lower alarm setting minimizes effect of relative response on readings

relative response on readings

Response to methane over life of sensor

life of sensor
  • Relative response to methane may change substantially over life of sensor
life of sensor
Combustible Gas / VaporRelative response when sensor is calibrated to 2.5% (50% LEL) methaneConcentration of methane used for equivalent 50% LEL response
Hydrogen1.12.75% CH4
Methane1.02.5% Vol CH4
Ethanol0.82.0% Vol CH4
Acetone0.71.75% Vol CH4
Propane0.651.62% Vol CH4
n-Pentane0.51.25% Vol CH4
n-Hexane 0.451.12% Vol CH4
n-Octane0.41.0% Vol CH4
Toluene0.351.88% Vol CH4