Argon analyzer ZAF

heliumhydrogenconcentration

Thermal Conductivity Gas Analyzer - ZAF4 Thermal Conductivity Gas AnalyzerIdeal for H2, Ar, and He measurement The analyzer continuously measures the concentration of gases such as H2, He, and Ar with high stability. A flame proof version is available (ZAFE) for countries outside of European Union (No CE Mark). This thermal conductivity gas analyzer measures gas concentration by utilizing the difference of thermal conductivities between two gas components. In the detector, there are a reference chamber and a measuring chamber, in each of which a thin platinum wire is stretched. The reference chamber is filled with reference gas. The sample gas is flowed through the measuring chamber. Each platinum wire composes a bridge circuit in combination with an external fixed resistor, and is heated by flowing a constant current. When there is a change in the concentration of the component under measurement, the thermal conductivity of sample gas will change to affect the temperature of the platinum wire in the measuring chamber. The resulting thermal change is taken out as a change in electric resistance, according to which the concentration of measured gas is calculated. Features Easy-to-see large LCD is helpful for efficient operation. Line voltage lies within 100 V to 240 V AC, 50/60 Hz. Zero point and span can be automatically calibrated RS-232C MODBUS TM communication Flame proof version available for countries outside of European Union (No CE Mark) Interference compensation Concentration alarm Applications H2 monitoring in semiconductor manufacturing equipment, hydrogen generation