YY-JF5 Automatic Oxygen Index Tester

1. 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 emit a beep sound prompt, eliminating the trouble of manual adjustment of oxygen concentration;

2. The step proportional valve greatly improves the control accuracy of the flow rate, and the closed-loop control is used to automatically adjust the oxygen concentration drift program in the test to the target value, avoiding the disadvantages of the traditional oxygen index meter that can not adjust the oxygen concentration in the test, and greatly improves the test accuracy.

II.Relevant technical parameters:

1. 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 warning sound

8. With timing function

9. Experimental data can be stored

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 information

15. Incorrect connection of oxygen and nitrogen

16. Oxygen sensor aging tips

17. Standard oxygen concentration input

18. Combustion cylinder diameter can be set (two common specifications are optional)

19. Flow regulation range: 0-20L/min (0-1200L/h)

20. Quartz glass cylinder: Choose one of two specifications (inner diameter ≥75㎜ or inner diameter ≥85㎜)

21. Gas flow rate in the combustion cylinder: 40mm±2mm/s

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

23. Test environment: Ambient temperature: room temperature ~ 40℃; Relative humidity: ≤70%;

24. Input pressure: 0.25-0.3MPa

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

26. Sample clips can be used for soft and hard plastics, all kinds of building materials, textiles, fire doors, etc

27. 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. 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,

28. Gas: industrial nitrogen, oxygen, purity > 99%; (Note: Air source and link head are provided by the user)

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 product, can not be provided as the oxygen index tester accessories, can only be purchased at the user’s local gas station. (In order to ensure the purity of the gas, please purchase at the local regular gas station)

1. Power requirements: AC220 (+10%) V, 50HZ
2. Maximum power: 150W

31.Self-supporting material sample clip: it can be fixed on the position of the shaft of the combustion cylinder and can vertically clamp the sample

32. Optional: non-self-supporting material sample clip: can fix two vertical sides of the sample on the frame at the same time (applied to soft non-self-supporting materials such as textiles)

33.The base of the combustion cylinder can be upgraded to ensure that the temperature of the mixed gas is maintained at 23℃ ~ 2℃ (contact sales for details)

                                                  Physical diagram of temperature control base

 III.Meeting the standard:    

Design standard: GB/T 2406.2-2009

Note: Oxygen sensor

1. Introduction of oxygen sensor: In the oxygen index test, the function of the oxygen sensor is to convert the chemical signal of combustion into an electronic signal displayed in front of the operator. The sensor is equivalent to a battery, which is consumed once per test, and the higher the user’s frequency of use or the higher the oxygen index value of the test material, the higher the oxygen sensor will have a higher consumption.

2. Maintenance of oxygen sensor: Excluding normal loss, the following two points in maintenance and maintenance help to extend the service life of oxygen sensor:

1). If the equipment does not need to be tested for a long time, the oxygen sensor can be removed and the oxygen storage can be isolated by a certain means at a lower temperature. The simple operation method can be properly protected with plastic wrap and placed in the refrigerator freezer.

2). If the equipment is used at a relatively high frequency (such as a service cycle interval of three or four days), at the end of the test day, the oxygen cylinder can be turned off for one or two minutes before the nitrogen cylinder is turned off, so that the nitrogen is filled in other mixing devices to reduce the ineffective reaction of the oxygen sensor and oxygen contact.

 IV.Installation condition table:

V. Physical display:

Green parts together with the machine,

Red parts prepared by  users own