Oxygen index technical parameters

Main technical index 1.1 Requirements for use site: The ambient temperature is 23C2C, and the combustion cylinder should be placed in a sealed box. The sealed box should ensure that there is no natural gas flow during the test, and after the test, there is an exhaust fan to remove all smoke generated during combustion. (It is recommended that users build a combustion ventilation cabinet, with dimensions and requirements provided by us). 1.2 Product structure diagram and dimensions

1.3 Combustion cylinder height 450MM, inner diameter 80M+2M

The top of the combustion cylinder is equipped with a limited flow orifice cover, with a diameter of 40 ± 1MM, to ensure a flow rate of at least 90MM/S for the discharged gas

Device with 3-5 mm glass bead and uniform distribution of mixed gas

To ensure that the temperature of the oxygen and nitrogen mixed airflow entering the combustion cylinder reaches 23 ° C and 2 ° C, an electric heating temperature system is installed at the bottom of the combustion cylinder, which can automatically control and heat the stable source gas entering the combustion cylinder to reach 23 ° C and 2 ° C. If the stability of the mixed gas exceeds 25C, this device will automatically start the semiconductor cooler to reduce the temperature of the mixed gas. 1.4 Oxygen content and flow rate of mixed gas

This device adopts a Japanese oxygen sensor, which automatically detects and expresses the oxygen content of the 0-99.9% mixed gas.

The mixed gas in this device adopts a mass flow meter of 1-20L/MIN, with a reading accuracy of 0,01L

1.5 Sample holder

1. Self supporting material sample to hold self supporting material for combustion

2. The support frame of non self-supporting material specimens is used to hold soft thin films or flaky specimens for combustion. 3. The test rod used for winding thin film materials is used for making specimens for combustion

1.6 Electrical Control

1. There is a circuit control for controlling the mass flow meter

2. There is a heating control system that controls the temperature of the mixed gas in the combustion cylinder, with a heating voltage of 36V

Heating power 100W

3. There is a circuit control for a semiconductor cooler to cool the mixed gas.

4. Sensing and expression of temperature signals from a mixture of gases.

1.7 Input voltage 220V Input power 200W