LEL refers to the percentage concentration of the lower explosive limit of combustible gas in air. It is widely used in the field of industrial safety to detect and measure combustible gases that may be present in the environment. This detector can quickly and accurately detect the presence of combustible gases in the air, thereby helping workers and related personnel to avoid possible dangers.

LEL detector usually adopts the principle of catalytic combustion. When combustible gas is detected, catalytic combustion generates heat, which changes the temperature. This change is converted into an electrical signal, and finally shows the gas concentration. This instrument usually has the characteristics of fast response, high accuracy and simple operation, and is widely used in industrial production sites, petrochemical enterprises, natural gas pipelines and other fields.

It should be noted that although the LEL detector can quickly and accurately detect combustible gas, some problems need to be paid attention to during use. For example, the instrument needs to be calibrated regularly to avoid errors; the influence of interfering gases needs to be avoided during the detection process; when combustible gases are found, timely measures need to be taken to avoid dangerous situations such as explosions. In short, the LEL gas detector is an important industrial safety device that can help companies and workers avoid possible dangers. It is necessary to understand its principles and characteristics during use, and pay attention to regular calibration and maintenance.