First, using a transistor version. Second, using the famous 555 timer. Learn more below! Using transistors version We will start with using a transistor circuit because it is easy circuit to build, cheap and best for learning. How the water level controller circuit works As Figure 1 shows the automatic on-off switch for the water pump circuit.. Pump Motor Timer Circuit Diagram with Dry Run Protection Last Updated on January 17, 2025 by Swagatam 28 Comments In this post I have explained about a circuit which can be used to monitor and detect the presence of municipal water supply by operating a pump motor through an intermittent ON/OFF timer.
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Learn how to build a simple water level controller circuit using IC 555 to control overflowing tank and from becoming fully empty.. Circuit Diagram Working Explanation Place point D wire at the bottom level of the tank. Point A wire should be placed at full level. Point B at the half and Point C wire at medium level. When the water level is below quarter-point A, B, and C will be open. However, the transistors Q1, Q2, and Q3 will remain OFF. The LEDs will get ON according to the level of water and the transistor's state.
![[DIAGRAM] Four Wire Diagram For Wiring A Timer](https://i.ytimg.com/vi/MEZvyQMq1To/maxresdefault.jpg "[DIAGRAM] Four Wire Diagram For Wiring A Timer")
![[DIAGRAM] Intermatic Digital Timer Wiring Diagrams](https://i.ytimg.com/vi/ibdsBIX_lBk/maxresdefault.jpg "[DIAGRAM] Intermatic Digital Timer Wiring Diagrams")
