Technical Data
24
Cross Sensitivities
The gas transmitter measures the concentration of hydrocarbons. Factory-preset calibration parameters are available for
methane, propane and ethylene gases. However, other hydrocarbons can also be measured. The following text has examples
of typical display values for some types of hydrocarbon, with the gas transmitter calibrated in the respectively stated gas
category.
Name of substance
1)
1) Substances, for which an explosion protection measuring function has been determined, are listed in the EC-Type Examination certificate
BVS 05 ATEX E 143X and the associated addendums.
CAS-No. LEL according to
IEC [Vol.%]
Gas category Display of 50 %LEL
2)
3)
in %LEL of target gas category
2) The LEL values were used according to IEC 60079-20-1. Other LEL values may apply for the device settings at the location of use.
3) Typical tolerance: ±5 %.
acetone 67-64-1 2.5 ethylene 75
benzene 71-43-2 1.2 ethylene 58
1.3-butadiene 106-99-0 1.4 ethylene 47
i-butane 75-28-5 1.3 propane 32
n-butane 106-97-8 1.4 propane 42
n-butanol 71-36-3 1.4 propane 30
n-butene 106-98-9 1.6 propane 48
n-butyl acetate 123-86-4 1.3 propane 30
n-butyl acrylate 141-32-2 1.2 propane 31
chlorobenzene 108-28-5 1.3 ethylene 25
cyclopentane 287-92-3 1.4 propane 46
diethyl ether 115-10-6 2.7 propane 64
1.4-dioxane 123-91-1 1.4 propane 21
ethanol 64-17-5 3.1 propane 56
ethylene 74-85-1 2.3 ethylene 50
ethyl acetate 141-78-6 2.0 propane 36
ethyl acetate 141-78-6 2.0 ethylene >100
ethylbenzene 100-41-4 0.8 propane 26
n-hexane 110-54-3 1.0 propane 28
methane 74-82-8 4.4 methane 50
methanol 67-56-1 6.0 propane >100
methanol 67-56-1 6.0 ethylene >100
1-methoxy-2-propanol 107-98-2 1.6 propane 41
methyl-i-butylcetone 108-10-1 1.2 propane 26
methyl ethyl ketone
(butanone)
78-93-3 1.5 propane 31
methyl methacrylate 80-62-6 1.7 propane 38
n-nonane 111-84-2 0.7 propane 28
n-octane 111-65-9 0.8 propane 30
i-pentane 78-78-4 1.3 propane 38
n-pentane 109-66-0 1.1 propane 35
propane 74-98-6 1.7 propane 50
i-propyl alcohol 67-63-0 2.0 propane 37
propene (propylene) 115-07-1 2.0 propane 33
propene (propylene) 115-07-1 2.0 ethylene >100
propylene oxide 75-56-9 1.9 propane 54
styrene 100-42-5 1.0 ethylene 44
tetrahydrofuran 109-99-9 1.5 propane 44
toluene 108-88-3 1.0 ethylene 85
o-xylene 95-47-6 1.0 ethylene 68
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