A water tank level controller is a device used to maintain a consistent water level in a tank. It works by using sensors to detect the water level and a control mechanism to turn the water pump on or off as needed. Here’s a basic rundown of how it works:
- Sensors to Detect Water Levels:
- Float Sensors: A floating device moves up and down with the water level and triggers a switch at designated high and low levels.
- Ultrasonic Sensors: These use sound waves to detect the water level. The time it takes for the sound wave to bounce back from the water surface tells the system how high or low the water level is.
- Conductivity Sensors: Water’s conductivity is used to detect its level. Electrodes placed at various points in the tank measure whether they’re in contact with water, signaling the level.
- Controller Unit:
- The controller receives input from the sensor(s) about the water level. When the level drops below a certain point, it signals the pump to turn on and refill the tank.
- Once the water reaches the designated high level, the controller signals the pump to turn off, preventing overflow.
- Pump Control:
- The pump is connected to the controller. When the controller detects a low water level, it activates the pump to start refilling the tank.
- When the water reaches the full level, the controller cuts off the power to the pump.
- Automatic and Manual Modes (optional):
- Many systems offer an option for manual control, allowing the user to turn the pump on and off independently of the automatic settings.
- Indicators and Alarms:
- Some controllers come with indicators to show tank levels or alarm systems to warn of critical low or overflow conditions.
Overall, the water tank level controller automates water management, reducing wastage and preventing pump wear.