MAN0597 ISSUE 08 - 02/04
2302M5030
4. OPERATION
48
4.7.1 Flammable Gas Selection
It is possible to set the display to read for specific flammable
gases. Select the required flammable gas. The instrument will
automatically adjust its internal correction factors.
Note that for:
EN50054 100 %LEL Methane = 5.0 %v/v
EN61779 100 %LEL Methane = 4.4 %v/v
4.7.1.1 Flammable Cross-Sensitivity Table
Note: The above data are applicable only to instruments that
are configured to display the Flammable gas in %LEL.
The above table and the cross-sensitivity feature offered in the
Impact and Impact Pro are supplied for indicative purposes
only. The following points should be noted when using the
table or the software feature.
(1) There is variability in sensor cross-sensitivity between
methane and other flammable compounds. Therefore, if
Flammable
Gas
EN50054
Relative Sensitivity
(% of Methane Reading)
EN61779
Relative Sensitivity
(% of Methane Reading)
Hydrogen 125 142
Methane 100 100
Ethylene 91 88
Methanol 83 95
Ethane 90 85
Ethanol 67 71
Propane 68 66
Butane 56 59
Pentane 56 63
Octane 42 47
To Next Page
Loading...
