Oxygen sensor is the use of ceramic sensitive elements to measure the oxygen potential in various heating furnaces or exhaust pipes, calculate the corresponding oxygen concentration by the principle of chemical balance, to monitor and control the combustion air-fuel ratio in the furnace, to ensure product quality and exhaust emission standards of measuring elements, widely used in all kinds of coal combustion, oil combustion, gas combustion and other furnace atmosphere control.
When installing automotive oxygen sensors, the following points need to be noted:
1. Distinguish the position: the oxygen sensor is installed in front of the three-way catalytic converter, and the post-oxygen sensor is installed behind the three-way catalytic converter.
2. Tool preparation: Use professional tools to install the oxygen sensor, especially considering that the thread size of the oxygen sensor is generally M18, and the recommended torque is 45-55Nm.
3. High temperature protection: The working temperature of the oxygen sensor can reach 800 ° C. Therefore, pay attention to preventing burns when removing or installing the oxygen sensor and ensure that the exhaust pipe is completely cooled before operating it.
