| 摘要 |
PROBLEM TO BE SOLVED: To always hold the correct operating state of a wastewater pump apparatus by detecting at least one of a defect in a wastewater pump, a defect of a motor, and the inspection time of the apparatus. SOLUTION: This current indication meter 8 for the wastewater pump apparatus can measure a time for an abnormal current inputted into the motor 2 and detect the state of a load on the motor 2 of the wastewater pump for lighting an indication lamp 12 by an integrated time. Since at least one of the defect in the pump apparatus, the defect of the motor, and the inspection time of the apparatus can be detected, the wastewater pump apparatus can always be maintained in a correct operating state. COPYRIGHT: (C)2005,JPO&NCIPI
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