| 摘要 |
PROBLEM TO BE SOLVED: To provide a combinational balance capable of detecting an abnormality of flucuation of measured value. SOLUTION: A plurality of meters 2 generate weight signals showing the weight of a supplied article, and enable discharge of the article. A control device 20 combines each weight signal variously, selects a combination wherein the total weight is equal or similar to a target weight from among the combinations, discharges articles constituting the selected combination from the corresponding meters 2, and repeats supply of the articles from a supply hopper 4 to the emptied meters 2. The control device 20 determines to be abnormal when the variation of the weight signal becomes out of a tolerance until the inside articles are discharged after the weight signal of each meter 2 is stabilized. In addition, diagnosis is performed, whether such an abnormality that a change with the passage of time of the weight signal occurs is generated or not based on the determination result by the control device 20. COPYRIGHT: (C)2006,JPO&NCIPI
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