| 摘要 |
PURPOSE:To improve weighing efficiency by timely controlling a rough weighing. CONSTITUTION:When combination numbers of weightings are set and commanded from an operation table 17, each set value is selected by a combination file 13a, and set values for rough and fine weighings are decided, and then, the set values are displayed by a CRT displaying device 19. On the other hand, a feed time per weight is set in the table 13a by the flow rate actually measured in advance, and a gate-opening time against the set value for the rough weighing is converted by a CPU11, and then, weighing start operation is performed by the operation table 17. When the above mentioned procedure is taken, a gate 2 of a hopper 1 is opened for the gate- opening time and the weighing 6 is performed. After the rough weighing is performed, the gate 2 is closed once and the weigher is stabilized. When the weigher is stabilized, the fine weighing is performed by jogging the gate 2. |
