What is the working principle of water level indicator?
Principle of Water Level Indicator. The working principle of a water level indicator is actually quite simple. Water level indicators work by using sensor probes to indicate water levels in a storage tank. These probes send information back to the control panel to trigger an alarm or indicator.
How do you make an automatic water level controller circuit?
To make this circuit you will need
- BC 547 Transistor X 3 = 9 INR.
- 220 K Ohm & 5.4 K Ohm resistors = 1.
- 1N4007 Diode = 1.
- 12V relay = 12.
- One, 3-pin PCD connector & two, 2-Pin PCB connector = 25.
- Wires = 5.
- PCB = 12.
What is use of water level indicator?
The water level indicator circuits are used in factories, chemical plants, and electrical substations and in other liquid storage systems. There are many possible uses for this simple system, examples include monitoring a sump pit (to control pump activation), rainfall detection, and leakage detection.
What does a water level sensor do?
Level sensors are used to detect the level of substances that can flow. Such substances include liquids, slurries, granular material and powders. Level measurements can be done inside containers or it can be the level of a river or lake.
How does ultrasonic water level sensor work?
How Does It Work? Ultrasonic level sensors work by the “time of flight” principle using the speed of sound. The sensor emits a high-frequency pulse, generally in the 20 kHz to 200 kHz range, and then listens for the echo. The sensor sends pulses toward the surface and receives echoes pulses back.
Does ultrasonic sensor work with water?
Ultrasonic sensors are reliable, cost-effective instruments for these applications. In operation, the sensor is mounted over the water. To determine the distance to the water, it transmits a sound pulse that reflects from the surface of the water and measures the time it takes for the echo to return.
How does a contact water level controller work?
Contact Water Level Controller Here a simple circuit to control the Water pumps. When the water level in the over head tank exceeds the required level, the pump automatically turns off and stops the pumping process thus preventing the over flow of water. It uses a relay to cut off the power supply to the water pump.
Which is the lowest cost water level controller?
The CheckPoint product is the lowest cost and longest lasting water level controller in the industry for any water level management application. We offer simplex and duplex water level controls. The CheckPoint ™ Water level controller works with any Program Logic Control, DC power supply, or you can direct connect to an Automation Control.
How does a float switch control water level?
The proposed water level controller circuit using a float switch is basically a semi-automatic system where the pump is started manually by press of a button, once the water level reaches the brim of the tank, the operation is switched of automatically by means of a float switch.
What are the presets for a water level controller?
Presets VR2 is to be set to a high voltage cut off, say 250V when the voltage rises above 250V during pump ON condition, T2 gets ON, and relay off. Preset VR1 is to be set to a low voltage cut off say 170V.