ONH oxygen nitrogen hydrogen analyzer

ONH oxygen nitrogen hydrogen analyzerApplication scope: Determination of oxygen, nitrogen, and hydrogen content in ferrous metals, non-ferrous metals, alloys, rare earths, and other solid materials.

Note: Changing the sample size can alter the measurement range

Sensitivity: 0.01ppm

Hydrogen: 120-180s;

Carrier gas:

High purity helium gas

Product Features：

• Simultaneously obtaining the content of oxygen, ammonia, and hydrogen elements in one analysis;

• Each element gas path has an independent flow control device for more precise control:

• Detect ppm level oxygen/nitrogen/hydrogen content;

• The infrared detection pool adopts the NDIR detection principle, with a large range span and stable operation;

• 8kVA high-power electrode pulse furnace;

• Accurate and constant control of water temperature by cooling device;

• Landing placement mode, no need for a test bench;

• Optional remote fault diagnosis module.

Analysis principle

The oxygen, nitrogen, and hydrogen elements in metal and non-metal solid materials are detected using the principle of inert gas melting. The analysis method is as follows: using inert gas as the carrier gas, high-temperature thermal decomposition is carried out to convert oxygen, nitrogen, and hydrogen in the sample into CO, N2, and H2. The extracted gas is sent to a non dispersive high-sensitivity infrared detector and a thermal conductivity detector for detection, directly detecting the content of oxygen, nitrogen, and hydrogen in the sample.

The core component infrared detection pool adopts the NDIR detection principle that has been tested for decades, with high technological maturity, large range span, and stable operation.

• Selecting efficient and long-life platinum rhodium alloy precious metal micro infrared light sources and metal reflectors for higher optical efficiency;

• Can effectively detect ppm level oxygen/hydrogen content;

• Selecting efficient narrowband infrared filters with good rectangular coefficients, high cut-off depth, high characteristic wavelength transmittance, small bandwidth, and high center wavelength positioning accuracy to better shield interference from other element spectral lines;

• High precision thermal conductivity detector is selected and operates at room temperature, with a detection rate superior to similar domestic products, meeting the requirements for ultra-low nitrogen content analysis.

Excellent infrared hydrogen detection technology

• The infrared optical principle is used to detect hydrogen elements, which can work under helium conditions and truly achieve simultaneous detection of oxygen, nitrogen, and hydrogen;

• Each infrared detection device has an independent constant temperature control device, which heats up faster and controls temperature more accurately.

Accurate fluid control technology

• The gas path adopts a parallel design, and each element of the gas path has an independent flow control device, which provides more accurate control and facilitates instrument operators to perform instrument leak detection.

Shanghai Baoying Optoelectronics Technology Co., Ltd. is a high-tech enterprise established in 2006. It has a professional and highly skilled technical research team with strong development capabilities, dedicated to the research and promotion of various gas detection equipment technologies. Its development and production of online gas detection and related industrial automation monitoring system products can provide customers with a series of comprehensive gas detection solutions for processes and environmental protection.

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