Application fields of oxygen index meter

Oxygen index tester refers to an instrument that measures the oxygen concentration (volume percent) required during the combustion process of textiles, plastics, paper, rubber and other products. The oxygen index value is the volume percentage of the lowest oxygen in the oxygen and nitrogen mixture that the substance can keep burning for 50mm or burning time of 2min after ignition. Test principle: Place the sample vertically in a quartz glass cylinder filled with oxygen and nitrogen, generally ignite the sample from the top, and observe the combustion state of the sample at the same time; if the material continues to burn, observe whether it can maintain combustion for 60s. At the same time, observe whether the distance of the flame spread reaches the distance required by the standard. Application areas: Building materials industry, rail transit industry, wire and cable industry, soft furniture industry, automobile industry, etc., plastic pipe industry, textile manufacturing industry. Follow the standards: ASTM American Society for Testing and Materials: ASTMD2863 ISO International Organization for Standardization: ISO4589-2: 1996 GB Chinese Standard: GB8624: 2012, GB/T2406: 2009, GB/T5454: 1997, GB/T10707: 2008 NES British Naval Engineering: NES714 Product Features: 1. Using modern oxygen sensor technology, the oxygen percentage concentration can be automatically obtained; 2. The oxygen percentage concentration is digitally displayed, and the reading accuracy is 0.1%; 3. The gas flow rate is adjusted by the precision metering gas flow valve, which can accurately adjust the oxygen and nitrogen flow rates; 4. The oxygen percentage step size can be adjusted, and the adjustment accuracy can reach 0-0.2L /Min; 5. Equipped with nitrogen and air pressure reducing valve, the output pressure can be adjusted to 0.1mpa; 6. External electrochemical sensor, easy for users to replace; 7. High temperature resistant quartz glass cylinder, which can withstand higher test temperatures; 8 , Equipped with a gas igniter device, which can easily adjust the length of the flame and has the function of cutting off the combustion gas; 9. The modern design and appearance, compared with similar products, have a more exquisite appearance design; 10. Provide relatively simple instrument installation Instruction files and operation files are provided for the convenience of users. Product parameters: 1. Timer: 999.00s±0.01s 2. Ignition device: DC motor drive, easy to operate, and can be automatically controlled. 3. Igniter: Ignition pipe diameter:Φ2±1mm, flame length: 16±1mm 4. Ambient temperature: room temperature～45℃ 5. Test space:≥0.5m, black background 6. Relative humidity:≤90% 7. Air source: industrial nitrogen, oxygen, purity > 99% 8. Flow adjustment range: 1-10L/min (manual adjustment) 9. Input pressure: 0.25～0.5Mpa 10. Working pressure: 0.1～0.2Mpa (Manual adjustment) 11. Voltage stabilization accuracy:≤0.001Mpa/min 12. Response time: <5s 13. Digital resolution:±0.1% 14. Temperature sensor: K typeΦ1.0mm insulated armored galvanic couple, the armored sleeve is heat-resistant to 1100℃ 15. Heating device: equipped with thermal insulation protection, power 1000W, test tube temperature can reach 400 16. Dimensions: width 1120mm×Depth 520mm×Height 1250mm, exhaust holeΦ100mm; 17. Test power supply: 220V±10, 1.2kVA

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