The water level indicator is used to measure the level of water present in the tank. This circuit not only indicates the amount of water present in overhead tank [[wysiwyg_imageupload::]]but it also gives an alarm when the tank is full. Water level indicator gives you an indication on 7 segment display by displaying E, P and C for empty, partially fill and completely fill, respectively.Water level indicator also gives you a display in the form of LED connected to it, you can also connect different color LED to distinguish the level of water present in it.The circuit is built around two IC’s namely 7408, 7404, 7 segment common cathode display and few more components. IC7408 is Quad two input AND gate and IC7404 is a hex inverting gate.
Liquid level Controller
Keeping the liquid up to certain level in tank is one of the widely used applications in petroleum and consumable goods producing industries. Certain amount of liquid should be always there in the tank to keep the liquid pressure as it is. To maintain this level there is a need of liquid level controller. It’s…