Online Flue Gas Analyzer. Introduction. UV-GAS-5000 flue gas analyzer (low emission monitoring) based on DOAS and chemometric algorithms (PLS), able to measure concentration of gases including SO2, NO2, NO, O2, NH3, Cl2, O3, H2S etc. It has features of high measure accuracy, outstanding reliability, fast response time and wide applicable scope.
Chemical analysis of the gases is an objective method that helps to achieve finer air control. By measuring CO2 or O2 in flue gases (by continuous recording instruments or Orsat apparatus or some cheaper portable instruments) the excess air level and stack losses can be estimated. The excess air to be supplied depends on the type of fuel and.