| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid level detector, which can reduce the influence of foam, and which can detect the level of liquid more accurately. SOLUTION: The detector includes sensors 72 and 73 for detecting the upper liquid surface level L1 of a diluted processed liquid accommodated, in a replenishment tank 80 and an enclosing body 74 having an opening part 74a. The enclosing body 74 prevents the advance of the scum by enclosing the surroundings of each sensor and permits the advance of the diluted processed liquid at the opening part 74a. COPYRIGHT: (C)2004,JPO
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