oxygen nitrogen analyzer

The ONH-6801 oxygen and nitrogen analyzer has a desktop integrated design, with a beautiful and elegant appearance and easy operation. It is an intelligent analytical instrument composed of a pulse furnace and a computer, with pyroelectric sensors and high-precision thermal conductivity detectors as the core.

　　The oxygen and nitrogen in metal and non-metal solid materials are detected using the principle of inert gas melting. In the determination of oxygen and nitrogen, the weighed sample is placed in a graphite crucible and melted by high-temperature heating in a helium gas stream (argon gas can be used for single oxygen measurement). The oxygen in the sample reacts with the carbon in the graphite crucible to produce carbon monoxide (CO), and the nitrogen in the sample escapes in the form of nitrogen gas. These mixed gases are sent to the converter by helium gas, and carbon monoxide (CO) is converted into carbon dioxide (CO2), while nitrogen does not react. The mixed gas after passing through the converter is sent to the infrared detection tank, where carbon dioxide (CO2) (H2O) is detected. Then, after infrared detection, carbon dioxide (CO2) and water in the mixed gas are adsorbed, and the remaining nitrogen and helium mixed gas is detected through a thermal conductivity detection cell. Quickly and accurately determine the oxygen and nitrogen content in steel, cast iron, alloys, copper, zirconium, titanium, rare earth materials, and other inorganic substances.