| 摘要 |
The lower ends of the tinned wires (fig. B, 3)contained in the sensor which is immersed in the conducting liquid passing through the junction box (fig. B, 4) are connected to the remote control cable (fig. A, 3) which joins the sensor (fig. A1) to the control (fig. A, 2). Pressing the button (fig C, 3) gives a visual indication of the level of conducting liquid at that moment by LEDs (fig. C, 1). Closing the switch (fig. C, 4) gives an acoustic signal through the buzzer (fig. C, 2) that the level of the conducting liquid has risen to the highest point. |
