| 摘要 |
PROBLEM TO BE SOLVED: To provide a combination balance capable of compensating the zero point, while suppressing continuous decrease in the combination weighing accuracy. SOLUTION: The combination balance comprises a plurality of supply hoppers 13; a plurality of weighing hoppers 14; and a control section 21 for repeatedly performing a combination treatment to decide a discharge combination of a combination of the weighing hoppers 14; a discharge treatment for discharging the measured material from the weighing hoppers 14 in the discharge combination; and a supply treatment for supplying the weighed material from the supply hoppers 13 to the weighing hoppers 14, when a plurality of independent adequate amount combinations which contain no identical weighing hopper 14 are present. The control section 21 decides in the combination treatment an independent adequate amount combination as the discharge combination and also decides one or more weighing hoppers 14 in the discharge combination as the weighing hopper 14 for zero compensation, stops once the supply treatment, with respect to the weighing hoppers 14 for zero compensation, and performs zero compensation of the weighing hoppers 14 for zero compensation. COPYRIGHT: (C)2009,JPO&INPIT
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