| 摘要 |
PURPOSE: An error preventing device of a level sensor is provided to minimize inflow of bubbles or sludge in a water level detecting chamber in which the level sensor is located, and to minimize influence of vibration of the water surface in a separation tank. CONSTITUTION: An error preventing device of a level sensor comprises the following: a sludge inlet(120) sucking the floated sludge on the water surface of a serration tank; the separation tank(100) in which coagulated sludge is floated; a water level detection chamber(200) equipped on one side of the separation tank; a water channel(220) located on a direction lower than the location of the sludge inlet; and the level sensor(210) detecting a water level of the water level detection chamber, and is located on the bottom of the water level detection chamber. |
