TC-306 Oxygen Nitrogen Analyzer Introduction:
Oxygen and nitrogen in metal and non-metallic solid materials are detected by the principle of inert gas melting. The oxygen and nitrogen hydrogen content can be measured by a TC-306 oxygen and nitrogen analyzer. In the determination of oxygen, nitrogen and hydrogen, the weighed The sample was placed in a graphite crucible and melted by high temperature heating in a gas stream of helium (single oxygen and hydrogen available argon). The oxygen in the sample reacts with the carbon in the graphite crucible to form carbon monoxide (CO). The nitrogen and hydrogen in the sample escape in the form of nitrogen and hydrogen. The mixed gas is sent to the high temperature reformer by the carrier gas in two ways. In a high temperature reformer, carbon monoxide (CO) is converted to carbon dioxide (CO2), H2 is converted to H2O, and nitrogen does not react. The mixed gas after passing through the reformer is sent to a CO2 infrared detection cell and an H2O infrared detection cell where carbon dioxide (CO2) and H2O are detected, and the oxygen and hydrogen contents are inversely calculated. Then, after the carbon dioxide (CO2) and water in the mixed gas after the infrared detection are adsorbed, the remaining mixed gas of nitrogen and helium is detected through the thermal conductivity detecting cell. After separation, the nitrogen gas enters the thermal conductivity cell to detect the hydrogen content. The test results are directly given by computer data processing. Hydrogen can also be selected as a thermal conductivity detector. Features:
1. Machine structure:
The whole machine adopts modular and integrated design. The floor-standing main unit is integrated into four integrated modules: pulse electrode furnace, pneumatic system, circuit system and detection system. The shape is simple and generous.
2. Electrode furnace system:
The pulse electrode furnace has a high heating temperature and adopts program control power. It can provide various temperature programming methods such as constant power heating, ramp power heating, and splitting temperature. It is suitable for high melting point materials such as aluminum alloy and high melting point materials such as tungsten alloy. analysis;
The burner head has a split structure, the upper and lower electrodes are easy to disassemble, and the replacement is convenient, and the lower electrode is made of high-temperature alloy material, which has long service life and low use cost;
The unique three-axis guiding cylinder ensures the balance of the electrode, ensuring good contact between the graphite crucible and the upper electrode, ensuring uniform force of the graphite crucible, and facilitating high-temperature heating for a long time. The automatic blanking head with air curtain protection and automatic air purging mechanism ensure the accuracy of oxygen single element analysis.
3. Airway system:
Adopting integrated floor-standing machine design, the internal space is wide, the gas path system has fewer connection routes, and the whole machine gas path system is simple and reliable;
The pneumatic components (including solenoid valves, cylinders, gas pipelines, and pneumatic joints) all use imported components, and the life of solenoid valves is more than one million times;
The use of electronic micro-sensors ensures accurate flow control and minimizes the impact of analysis of airflow changes on analysis; Technical Parameters:
Analysis range:
Oxygen: 0.00005% to 3.0%
Nitrogen: 0.00005% to 3.0%
Hydrogen: 0.00005% to 0.1%
All of the above can be extended by changing the amount of sample.
3 Minimum reading:
0.00001%
4 Analysis accuracy:
Oxygen: 1.0ppm or RSD ≤1.0%
Nitrogen: 1.0ppm or RSD ≤1.0%
Hydrogen: 0.2ppm or RSD ≤1.0%
Based on fixed standards, both meet one of them
Note: * is not greater than the standard deviation or uncertainty.
5 Analysis time:
Oxygen: 120~180s;
Nitrogen: 120~240s;
Hydrogen: 120~180s;
6 Analysis method:
Oxygen: infrared absorption method
Nitrogen: thermal conductivity
Hydrogen: infrared absorption method (optional thermal conductivity method)
7 pulse heating furnace:
High current: 1500A;
High power: 8KVA;
High temperature: 3500 ° C;
Carrier gas: high purity helium (high purity argon) 99.99%, 0.40Mpa;
Power gas: ordinary nitrogen (or purified compressed air), 0.25Mpa;
Chemical reagent: magnesium perchlorate; alkali asbestos;
Introduction:
Oxygen and nitrogen in metal and non-metallic solid materials are detected by the principle of inert gas melting. The oxygen and nitrogen hydrogen content can be measured by a TC-306 oxygen and nitrogen analyzer. In the determination of oxygen, nitrogen and hydrogen, the weighed The sample was placed in a graphite crucible and melted by high temperature heating in a gas stream of helium (single oxygen and hydrogen available argon). The oxygen in the sample reacts with the carbon in the graphite crucible to form carbon monoxide (CO). The nitrogen and hydrogen in the sample escape in the form of nitrogen and hydrogen. The mixed gas is sent to the high temperature reformer by the carrier gas in two ways. In a high temperature reformer, carbon monoxide (CO) is converted to carbon dioxide (CO2), H2 is converted to H2O, and nitrogen does not react. The mixed gas after passing through the reformer is sent to a CO2 infrared detection cell and an H2O infrared detection cell where carbon dioxide (CO2) and H2O are detected, and the oxygen and hydrogen contents are inversely calculated. Then, after the carbon dioxide (CO2) and water in the mixed gas after the infrared detection are adsorbed, the remaining mixed gas of nitrogen and helium is detected through the thermal conductivity detecting cell. After separation, the nitrogen gas enters the thermal conductivity cell to detect the hydrogen content. The test results are directly given by computer data processing. Hydrogen can also be selected as a thermal conductivity detector.
