| 摘要 |
PROBLEM TO BE SOLVED: To provide a submersible pump effectively preventing failure and malfunction by breakage or the like and easy to know an operating water level. SOLUTION: A mounting rod 29 vertically extending is supported through a support bracket 30 on a side of the submersible pump 30. An upper electrostatic capacitance sensor 33 and a lower electrostatic capacitance sensor 34 are installed vertically height-adjustably at a plurality of positions vertically spaced on the mounting rod 29. An outer peripheral surface of the mounting rod 29 has scales 31 formed along a vertical direction. COPYRIGHT: (C)2006,JPO&NCIPI
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