Explosive Gas/Vapour
Detectable by
Non-Filtered LEL
Sensor
Detectable by
Filtered LEL
Sensor
Gasoline
X
Ethylene (C
2
H
4
)
X
X
Benzene (C
6
H
6
)
X
Note: This list is not all-inclusive. As combustible sensors are a non-specific sensing technology,
it is recommended you verify detection capabilities for any specific compounds.
Catalytic bead sensors are typically not recommended for detection of combustible gases with
flash points greater than 37.8° C/100° F.
Correction Factor for catalytic type combustible LEL sensors
The following table shows the % relative sensitivity of several common detectable gases based
on a methane (CH
4
) calibration. This table applies to both Filtered and Unfiltered versions of the
catalytic combustible sensors offered in the BW Flex detector.
Gas
Rel Sens
CF Value (vs Methane)
n-Butane
66
1.5
Hydrogen
111
0.90
Methane
100
1
n-Pentane
58
1.7
Propane
61
1.6
Custom
0.1-15
BW Flex Series
52
User Manual
Summary of Contents for BW Flex Series
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