Debugging and Installing a Limiting Oxygen Index Tester

The limiting oxygen index tester is an instrument that can be used to identify the flammability data of certain polymers. /T5454-1997 for research, development and production. Oxygen index testers will inevitably encounter problems during normal work. Therefore, the understanding of oxygen index meters in daily use, as well as their maintenance, installation and inspection before and after use are particularly important. important questions.

First of all, when using the oxygen index instrument, it should be checked the experimental apparatus and oxygen index instrument gas supply should be turned on. After a few valves, we can adjust the mixed gas arbitrarily. In most cases, the flow rate is around 10L/min. When closing the inlet and outlet valves,it is necessary to record the pressure and flow data of nitrogen, gas mixture, oxygen and other gases. , set it aside for 30 minutes while debugging and pro installation, then observe the values ​​of each pressure gauge and flow meter, and compare them with the previously recorded values. If there is no change, it means there is no air leak. If so, it must be done quickly. For inspection and maintenance, the temperature of the test environment should generally be controlled at 10-30 degrees Celsius, and the test is carried out in an atmosphere with a humidity of 30%-80%.

Secondly, for the installation of the oxygen indicator, the oxygen indicator can be installed flat on the work platform and fixed, then the O2, N2 interface for the connection, connect the end of the random configuration nylon tube to the base of the combustion tube, and the other end to the N2 + O interface2 on the back of the instrument, pay attention to the tightness of the interface during the process; Put it in the combustion seat, put the glass balls that come with it, then put a metal piece to tighten it and install it on the test set. After inserting the glass tube into the combustion cylinder, the oxygen index meter can be debugged and installed. complete.

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