| 摘要 |
PURPOSE:To accurately take a manual pile measurement by combining plural sets of measuring units, selecting a combination whose total measured value is equal or closest to set weight, and turning on the pilot lamps to be selected of measuring unit corresponding to the combination. CONSTITUTION:A measuring unit A is provided with a specific group of measuring disks (a), measuring instruments (c) using load cells coupled with the dishes, and pilot lamps (b) to be selected. Weight data obtained by the respective measuring instruments (c) are inputted to a multiplexer (d). Then, the multiplexer (d) selects a combination whose total measured value is equal or closest to the set weight with a switching signal from a controller B which incorporates a CPU and a memory, and sends the selection result to the controller B through a preamplifier (e) and an A/D converter (f). This controller B sends the data to a host system through a parallel-series converting circuit (k) and outputs a signal for turning on the pilot lamps (b) of measuring units A corresponding to the combination.
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