| 摘要 |
PROBLEM TO BE SOLVED: To update a zero-point correction value, while preventing deterioration of the weighing accuracy, in a combinational balance, having a weighing hopper equipped with a plurality of weighing storage parts and a memory hopper equipped with a plurality of memory storage parts. SOLUTION: In combination operation, when both the weighing storage part and the memory storage part corresponding to the weighing storage part hold weighing objects, combination operation for updating the zero-point correction value is performed, relative to a weighing hopper whose zero-point correction value is to be updated so that the weighing storage part and the memory storage part corresponding to the weighing storage part are forced to participate in the combination, and the zero-point correction value is updated by emptying the weighing hopper whose zero-point correction value is to be updated by discharging the weighing objects from the weighing storage part and the memory storage part jointing the optimum combination to a collection shoot, and by discharging the weighing objects from a weighing storage part that does not participate in the optimum combination to a memory storage part corresponding thereto. COPYRIGHT: (C)2007,JPO&INPIT
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