7711 Appendix11 Appendix11.1 Wet/Dry Measurement Deviations, Conversion TableNOTICEThe LT3 carries out measurements directly in the humid flue gases (wet measurement). Whenextractive devices are used, flue gases are removed and prepared.Dry measurements are normally used here, since the humidity has been extracted from theflue gas. As a result, O2 measurement values vary (see diagrams below).Fig. 11-1 Theoretical max. deviations ofthe O2 concentration in wet and dry meas-urement.Fuel: natural gas or oilFig. 11-2 Calibration plot for the concentra-tion values of O2 (dry) and O2 (wet)O2 concentration range Constant C gas/Ch 4 Constant C oil/(CH2 )x0-6 % O2 1,18 1,1156-12 % O2 1,08 1,080-12 % O2 1,15 1,10
