product features                                       

1. Full color touch screen control, just set the oxygen concentration value on the touch screen, the program will automatically adjust to the oxygen concentration balance and beep sound prompts, eliminating the trouble of manual adjustment of oxygen concentration;
2. The step proportional valve greatly improves the control accuracy of the flow, the closed-loop control, the oxygen concentration drift program in the test automatically adjusts back to the target value, avoiding the traditional oxygen index meter can not adjust the oxygen concentration in the test, and greatly improves the test accuracy.

the relevant technical parameters                                       

1. The use of imported oxygen sensor, digital display oxygen concentration without calculation, higher accuracy and more accurate, range 0-100%
2. Digital resolution: ±0.1%
3. Measurement accuracy: 0.1 level
4. Touch screen setting program automatically adjusts oxygen concentration
5. One-click calibration accuracy
6. One key matching concentration
7. Oxygen concentration stability automatic prompt alarm sound
8. With timing function
9. Can store experimental data
10. Historical data can be queried
11. Historical data can be cleared
12. You can choose whether to burn 50mm
13. Air source fault warning
14. Oxygen sensor fault warning
15. Incorrect connection of oxygen and nitrogen
16. Oxygen sensor aging tips
17. Standard oxygen concentration input
18. The diameter of combustion cylinder can be set (two common specifications are optional)
19. Flow adjustment range: 0-20L/min (0-1200L/h)
20. Quartz glass cylinder: choose one of two specifications (inner diameter ≥75㎜ or inner diameter ≥85㎜)

The gas flow rate in the combustion cylinder: 40mm±2mm/s

22. Overall dimensions: 650mm×400×830mm

Pressure gauge precision 2.5, resolution: 0.01MPa

24. Test environment: ambient temperature: room temperature ~ 40℃; , relative humidity: ≤70%;

Input pressure: 0.25-0.3MPa

Working pressure: nitrogen 0.15-0.20Mpa Oxygen 0.15-0.20Mpa

27. Sample clamp can be used for soft and hard plastics, all kinds of building materials, textiles, fire doors and so on
28. Propane (butane) ignition system, the ignition nozzle is made of a metal tube, with an inner diameter of Φ2±1mm nozzle at the end, which can be freely bent. It can be inserted into the combustion cylinder to ignite the sample, the flame length: 16±4mm, the size of 5mm to 60mm can be freely adjusted,
29. Gas: industrial nitrogen, oxygen, purity > 99%; (Note: air source and link head user's own)

Tips: When the oxygen index tester is tested, it is necessary to use not less than 98% of the industrial grade oxygen/nitrogen each bottle as the air source, because the above gas is a high-risk transport goods, can not be provided as the oxygen index tester accessories, can only be purchased in the user's local gas station. (In order to ensure the purity of the gas, please purchase in the local regular gas station)

30. Power supply requirements: AC220 (+10%) V, 50HZ
31. Maximum power: 150W
32. Self-supporting material sample clip: can be fixed in the combustion cylinder shaft position, and can vertically clamp the sample
33. Non-self-supporting material sample clip: the two vertical sides of the sample can be fixed on the frame at the same time (optional/applied to soft non-self-supporting materials such as textiles)

 Applicable standards                                           

Design standard: GB/T 2406.2-2009