| 摘要 |
PURPOSE:To obtain an inexpensive measuring and processing device by providing a selecting circuit between an electrolytic bath and an isolator to decrease the number of isolators and analog input channels. CONSTITUTION:The selecting curcuit 20 selects only an optional measuring signal among lots of measuring signals. When a data processor reads the Nth measuring signal for processing, the processor outputs a selection command to the selecting circuit 20. Then the Nth measuring signal from the electrolytic bath 2 is inputted to the isolator 4, where the isolated and converted measuring signal is inputted to an analog input channel of the processor 5. As a result, the data processor 5 conducts required processing to the inputted data. When the data processing is finished, the data processor 5 stops the output of the selection signal to the selection circuit 20. |
