The G-CEM4250 is a multi channel gas analyser that uses an in-situ probe set into the duct to measure the CO, CO2 and H2O concentration in the flue gases. The analyser uses infrared gas cell correlation technology to determine the gas levels as they diffuse into the stainless steel measurement chamber. It provides a high accuracy, low maintenance measurement of the combustion process. It is capable of operating in very high dust loading conditions, up to several gm/m3 of dust. Its performance can be verified automatically or manually on demand by the injection of zero and span protocol gases into the probe measurement chamber. The GCEM4050 is designed as a stand-alone instrument for use as a process control monitor. - In-situ probe measurement - Integral temperature controlled weather cover - Integral temperature measurement - Ambient temperature range available from -20 to +70 deg C - Wide operating temperature - 300 deg C - Zero and span verification by protocol gases - In-situ 316L S/S probe, Option of 1.0m or 1.8m length - Analogue & serial digital output