What is the minimum oxygen level required for correct operation of a catalytic combustion sensor?

The minimum oxygen level required for the correct operation of a catalytic combustion sensor is 10%. Catalytic combustion sensors function by utilizing a catalyst to accelerate the combustion of gases, which relies critically on the availability of oxygen in the environment. If the oxygen level falls below 10%, the sensor may not operate correctly, leading to inaccurate readings or a failure to detect the presence of combustible gases.

In practical terms, maintaining this minimum oxygen threshold ensures that the sensor can adequately respond to gas concentrations in the air. It helps ensure the efficiency of the catalytic process, which is fundamental for both safety and operational reliability in environments where combustible gases are present.