| 摘要 |
PURPOSE: A multiple channel pressure sense controller is to be used for multiple pressure senses in common. CONSTITUTION: A multiple channel pressure sense controller comprises an analog multiplexor(3), an A/D converter(4) and a calculation controller(5). The analog multiplexor(3) inputs the pressure signals measured from multiple pressure senses(2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h) having an assigned channel numbers respectively. The A/D converter(4) converts the measured signal from one of the pressure senses selected by the analog multiplexor(3) to a digital value. The calculation controller(5) outputs a selection signal to the analog multiplexor, displays the digital value and the assigned channel numbers at an indicator(7), and indicates the indication for comparison output to the alarm indication lamp having a corresponding channel number, comparing the sizes of an initial value previously memorized for channel number and the digital value from the A/D converter. Thereby, one pressure sense controller corresponding as 1:1 to one pressure sense is not necessary.
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