Line of Sight Infrared Hydrocarbon Gas Detector AutroPath HC800 , 116-P-HC800/IGB, Rev. A, 2016-03-03
P/N 95-8744, v4.2 , rev. 3/16
Autronica Fire and Security AS
Page 3
Gas Path Length (m)
Cloud
Concentration
(LFL)
Cloud
Concentration (v/v, by
volume)
Cloud
Concentration
(ppm)
LFL-m ppm-m
Methane 1 100% 5.0% 50000 1 50000
Methane 2 100% 5.0% 50000 2 100000
Methane 3 100% 5.0% 50000 3 150000
Methane 4 100% 5.0% 50000 4 200000
Methane 5 100% 5.0% 50000 5 250000
Propane 1 100% 2.2% 22000 1 22000
Propane 2 100% 2.2% 22000 2 44000
Propane 3 100% 2.2% 22000 3 66000
Propane 4 100% 2.2% 22000 4 88000
Propane 5 100% 2.2% 22000 5 110000
Butane 1 100% 1.9% 19000 1 19000
Butane 2 100% 1.9% 19000 2 38000
Butane 3 100% 1.9% 19000 3 57000
Butane 4 100% 1.9% 19000 4 76000
Butane 5 100% 1.9% 19000 5 95000
Table 1—LFL-m to PPM-m Conversion