BTH-JF-5 Intelligent Touch Screen Automatic Oxygen Index Tester

I. Product Features
Full-color touch screen control; simply set the oxygen concentration value on the touch screen, and the program will automatically adjust to achieve balanced oxygen concentration and emit a beep for notification, eliminating the hassle of manual oxygen concentration adjustment.
Step-down proportional valves significantly enhance flow control accuracy. Using closed-loop control, the program automatically adjusts the oxygen concentration drift back to the target value during testing, avoiding the drawback of traditional oxygen index meters that cannot adjust oxygen concentration during testing, thereby greatly improving testing accuracy.
Section II: Relevant Technical Specifications
1. Utilizes imported oxygen sensors with digital display of oxygen concentration, eliminating the need for calculation, offering higher precision and accuracy, with a range of 0-100%.
2. Digital Resolution: ±0.1%
3. Measurement Accuracy: 0.1 grade
4. Touchscreen Setup Program Automatically Adjusts Oxygen Concentration
5. One-click Calibration Precision
6. One-click Concentration Mixture
7. Oxygen concentration stable with automatic alarm sound notification
8. Timer function equipped
9. Store experimental data
10. Historical data can be queried
11. Clearable Historical Data
12. Optional for combustion of 50mm
13. Gas Source Failure Alert
14. Oxygen Sensor Fault Alert
15. Oxygen/Nitrogen Misconnection Alert
16. Oxygen Sensor Aging Alert
17. Standard Oxygen Concentration Input
18. Settable combustion tube diameter (two common sizes available)
Flow Regulation Range: 0-20 L/min (0-1200 L/h)
20. Quartz glass tube: Choose from two sizes (internal diameter ≥ 75mm or internal diameter ≥ 85mm)
21. Gas Flow Rate Inside Combustion Tube: 40mm ± 2mm/s
22. Overall dimensions of the unit: 650mm x 400 x 830mm
23. Pressure gauge accuracy: 2.5 class, resolution: 0.01 MPa
24. Test Environment: Room temperature to 40℃; Relative humidity: ≤70%
25. Input Pressure: 0.25-0.3 MPa
26. Working Pressure: Nitrogen 0.15-0.20 Mpa, Oxygen 0.15-0.20 Mpa
27. Sample Holders for soft and hard plastics, various construction materials, textiles, fire doors, etc.
28. Propane (butane) ignition system, with an ignition nozzle made of a metal tube, featuring a nozzle with an internal diameter of Φ2±1mm at the end, which is freely bendable. It can be inserted into the combustion chamber to ignite the sample, with a flame length of 16±4mm and a size adjustable from 5mm to 60mm.
29. Gases: Industrial nitrogen and oxygen, high purity; (Note: Gas source and connector provided by the user)
Tips: For the oxygen index tester, a bottle of industrial-grade oxygen/nitrogen with at least 98% purity is required as the gas source. Since these gases are hazardous for transportation, they cannot be provided as accessories for the oxygen index tester and must be purchased locally at a gas station. (To ensure purity, please purchase from a local authorized gas station.)
30. Power Requirements: AC220 (+10%) V, 50 Hz
31. Maximum Power Rating: 150W
32. Self-supporting Material Sample Clamp: Capable of being fixed at the center of the combustion tube axis and able to vertically clamp the sample
33. Non-supporting Material Sample Clamp: Capable of simultaneously fixing both vertical edges of the sample to the frame (optional/applicable to textiles and other soft, non-supporting materials)
Section 3: Applicable Standards
Design Standard: GB/T 2406.2-2009