Oxygen index tester

*Main technical parameters:

1. Adopting imported oxygen sensors, the digital display of oxygen concentration does not require calculation, with higher accuracy and a range of 0-100%

2. Digital resolution: ± 0.1%

3. Measurement accuracy of the whole machine: 0.2 level

4. Flow regulation range: 0-10L/min (60-600L/h)

5. Response time:<5 seconds

6. Quartz glass cylinder: inner diameter 75mm * 300mm

7. Gas flow velocity inside the combustion cylinder: 40mm ± 2mm/s Total combustion cylinder * 450mm

8. Pressure gauge accuracy level 2.5, resolution: 0.01MPa

9. Flow meter: adjustable from 1-15L/min (60-900L/H), accuracy level 2.5

10. Test environment: ambient temperature: room temperature~40 ℃; Relative humidity: ≤ 70%;

11. Input pressure: 0.2-0.3MPa

12. Working pressure: nitrogen 0.05-0.15Mpa, oxygen 0.05-0.15Mpa, oxygen/nitrogen mixed gas inlet: including stabilizing valve, flow regulating valve, gas filter, and mixing chamber.

13. The sample holder can be used for soft and hard plastics, textiles, fire doors, etc

14. Propane (butane) ignition system, flame length adjustable from 5mm to 60mm

15. Gas: Industrial nitrogen, oxygen, purity>99%; (User provided).

16. Power requirements: AC220 (+10%) V, 50HZ

17. * High power consumption: 50W

18. Igniter: Made of * metal tubes, with a nozzle at the end with an inner diameter of Φ 2 ± 1mm, which can be inserted into the combustion cylinder to ignite the sample. Flame length: 16 ± 4mm, adjustable size

19. Self supporting material sample clamp: can be fixed at the axis position of the combustion cylinder and can vertically clamp the sample

20. Non self-supporting material specimen clamp: capable of fixing both vertical edges of the specimen to the frame simultaneously

2、 Chassis and Partial Structure:

1. Control box: It is processed and formed by CNC machine tools, and the steel plate spraying box body is electrostatically sprayed. The control part and the test part are controlled separately.

2. Combustion cylinder: Temperature resistant quartz glass tube (inner diameter ￠ 75mm, length 300mm), outlet inner diameter: φ 40mm

3. Mixer: Fill with glass beads to evenly mix oxygen and nitrogen. (Bead diameter 4.5mm filled with a degree of 95mm, * bag)

4. Sample fixture: self-supporting fixture that can vertically clamp the sample; (Optional non self-supporting style frame), two sets of style clips meet different testing requirements; Style clip plug-in type, making it easier to place styles and style clips

5. Standard spare glass tube to prevent accidental damage and meet uninterrupted testing requirements; The diameter of the tail pipe hole of the long rod igniter is ￠ 2 ± 1mm, and the flame length of the igniter can be adjusted freely (5-50mm)

3、 Design standard: GB/T 2406.2-2009 GB/T 2406.1-2008

Compliant with standards: ASTM D 2863, ISO 4589-2, NES 714 GB/T 5454 GB/T 10707-2008 GB/T 8924-2005 GB/T 16581-1996 NB/SH/T 0815-2010 TB/T 2919-1998 IEC 61144-1992 ISO 15705-2002 ISO 4589-2-1996

​