Limited Oxyen Index Tester，Automatic oxygen index test machine
Introduction
STD Limited Oxyen Index Tester for the determination under the test conditions specified in oxygen and nitrogen gas mixture just to maintain a minimum sample combustion oxygen concentration required. This tester equipped with importedparamagnetic oxygen sensorand importedmass flow controllerto make sure the measurement accuracy and durability. For the assessment of the performance of a homogeneous combustion of solid materials, laminates, foams, films and films under specified conditions.
Parameters
1. The oxygen concentration measurement range: 0~100%;
2. The oxygen concentration in accuracy of ± 0.1%
3. N2mass flow controller range：1.0～15.0L/min;Accuracy：2%
4. O2mass flow controller range：1.0～15.0L/min;Accuracy：2%
5.Oxygen sensorresponse time: <2s;
6.Response time of equipment < 10s
7. The gas flowrate in combustion column is 40mm / s ± 2mm /s;Concentration regulation accuracy ± 0.1%
8. The gas flowrate in top of the combustion tube is 90mm ± 10mm/s;
9. Portable igniter, downward spray 16 ± 4mm, flame adjustable range 10 ~ 30mm.
10. The measurement time is 5 mins, and the accuracy is ± 0.5s。
11. Double flow meter and pressure gauge device: accuracy ± 1%
12.Working pressure：0.1Mpa
13.Glass column inner diameter：80mm , heigh 500mm.
Main Features
1. Imported paramagnetic oxygen oxygen concentration sensor.
2. Equipped with a high temperature quartz glasscolumn, the openingDIAM.of column cap is 40mm.
3.Equipped withsamples holders for physically self-supporting specimens and supported film or sheet test specimens,
4.Mass flow controller automatically adjusts oxygen and nitrogen gas flow rate according to set concentration.
5.The patented gas flow mixing control unit is equipped with nitrogen and oxygen mass flow controllers to precisely control the gas flow.
6.After the oxygen concentration is set on the screen, the PLC touch screen control system will automatically adjust the oxygen concentration according to the set value. Accurate and convenient;
7.Patented gas mixing chamber ensures more accurate determination of oxygen concentration and more sufficient mixing of oxygen and nitrogen
8.The color LCD touch screen displays the parameters of flow, time and test results in real time.
9. Equipped with special igniter, easy to operate.
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