| 摘要 |
PURPOSE:To eliminate an additional trouble display device, by differentiating the display colors in a display device, which displays the measured value, at the time of normal operation and at the time of fault. CONSTITUTION:When the measured value is within the normal range which is set in advance, a negative electrode of a DC power source is guided to the side of an element C1 of each of display elements L11-L75, and the green numerical display is performed by numerical display outputs E'11-E'75. When the measured value is deviated from the preset range, an abnormality display output F' is switched, and the negative electrode N of the DC power source is guided to the side of a terminal C2 of each of the display elements L11-L75. Therefore, the numerical display becomes red. At this time, a warning device is actuated. |
