The BA 2000 was developed specifically for this application. Some combustion processes, e.g. process heaters, steam boilers or heating furnaces the air needed to attain optimum system potency will simply fluctuate. and also, the economic optimum of the method fluctuates among a comparatively slender vary. Both elevated NOx or SOx emission because of excess offer of air (O2 excess), moreover as energy loss within the system because of incomplete combustion (lack of O2) need measure the O level within the flue gas of the combustion method. Sampling close to the combustion chamber is so even as very important as employing a speedy response sensing element to permit for responding to changes within the combustion gas temperature and/or different variables within the combustion method promptly.