Descrizione

1. advantages of LR-5 intelligent automatic touch screen control oxygen index tester:
2. 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 issue the sound of beep, eliminating the trouble of manually adjusting the oxygen concentration;
3. The stepping proportional valve greatly improves the control accuracy of the flow, and the closed-loop control is adopted. Durante il test, the oxygen concentration drift program automatically adjusts back to the target value, which avoids the disadvantage that the traditional oxygen index tester cannot adjust the oxygen concentration during the test and greatly improves the test accuracy.

II. Main technical parameters of LR-5 intelligent automatic touch screen controlled oxygen index tester

1. Utilizzando il sensore di ossigeno importato, concentrazione di ossigeno sul display digitale senza calcolo, più preciso e accurato, allineare 0-100%
2. Risoluzione digitale: 0.1%
3. Accuratezza di misurazione: 0.1 livello
4. The touch screen setting program automatically adjusts the oxygen concentration
5. One-key calibration accuracy
6. One-bond ratio concentration
7. Stable oxygen concentration automatic alarm sound
8. With timing function
9. Experimental data can be stored
10. Query historical data
11. Historical data can be cleared
12. Optional whether to burn 50mm
13. Air source fault prompt
14. Oxygen sensor fault prompt
15. Tips for wrong connection of oxygen and nitrogen
16. Oxygen sensor aging tips
17. Standard oxygen concentration input
18. Diameter of combustion cylinder can be set (two common specifications are optional)
19. Campo di regolazione del flusso: 0-20l/min (0-1200l/h)

. 20 quartz glass tube: two specifications either (diametro 75 ㎜ or inner diameter or greater or higher 85 ㎜)

21. Portata del gas nel cilindro di combustione: 40mm±2mm/s
22. Dimensioni complessive: 650mm * 400 * 830mm
23. Precisione del manometro 2.5, risoluzione: 0.01mpa
24. The test environment: la temperatura ambiente: temperatura ambiente ~ 40 ℃;, umidità relativa: 70%;
25. Pressione in ingresso: 0.25-0.3mpa
26. Pressione lavorativa: nitrogen 0.15-0.20mpa oxygen 0.15-0.20mpa
27. The specimen holder can be used for soft and hard plastics, various building materials, tessili, porte tagliafuoco, eccetera
28. Propano (butano) sistema di accensione, the ignition nozzle is made of a metal, the end has Φ 2±1 mm inner diameter nozzle, can be bent freely.Can be inserted into the combustion tube to ignite the sample, la lunghezza della fiamma: 16 4mm, the size of 5mm-60mm can be adjusted freely,
29. Gas: azoto e ossigeno per uso industriale con purezza di > 99%;(the purity of industrial oxygen in user-provided/normal gas stations is generally between 99.2% E 99.3%).
30. Requisiti di alimentazione: AC220 (+10%) V, 50HZ
31. Maximum power: 150W
32. Porta campioni di materiale autoportante: può essere fissato nella posizione dell'asse del cilindro di combustione e può sostenere il campione verticalmente
33. Porta campioni di materiale non autoportante: it can fix two vertical edges of the sample on the frame at the same time (optional/applicable to soft non-self-supporting materials such as textiles).

III. Design standard: GB/T 2406.2-2009

Suggerimenti: when testing oxygen index tester, one bottle of industrial-grade oxygen/nitrogen of no less than 98% should be used as gas source. As the above gas is high-risk transport, it cannot be used as accessories of oxygen index tester, so it can only be purchased from local gas stations of users.(in order to ensure the purity of the gas, please purchase it at a local regular gas station)