| 摘要 |
PURPOSE: A level sensor of a chemical storage device is provided to enable a user to rapidly and visually confirm whether the level sensor is normally operated by installing an LED lamp in the level sensor. CONSTITUTION: A level sensor(200) of a chemical storage device comprises a sensor fixing plate, a guide pipe, and a detection unit, and a sensing unit. The sensor fixing plate is fixed to the top surface of a chemical tank and allows the level sensor to be installed in the chemical tank. The guide pipe is fixed to the sensor fixing plate. The sensing unit is formed in the end of the guide pipe and senses the chemical fluid stored in the chemical storage tank.
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