A level sensor is a tool that is used to monitor, maintain and measure liquid levels that flow in an open system or system. Level sensors are primarily used in the manufacturing and automotive industries, but are also used in many household appliances.

1. What is Level Sensor and how does it work?

2. What is Level Sensor?
▪ A level sensor is a tool that is used to monitor, maintain and measure liquid levels
that flow in an open system or system.
▪ Once the liquid level is measured, these sensors helps in converting received data
into an electric signal.
▪ Level sensors are primarily used in the manufacturing and automotive industries,
but are also used in many household appliances.
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3. There are two types level sensors:
1. Point level Sensors: Point level sensors are used in measuring the liquid
at a certain point in a tank or a chamber. These sensors are mainly used to
managed high and low levels of liquid. Most of the time, they work as a
switch to engage a function when the tank level is either rises or falls to a
certain level. The sensor detects when the liquid has reached the expected
point and it moves as a switch to activate the necessary response.
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4. 2. Continuous level sensors:
• Continuous level sensors are used to give liquid level detection through
every point in the tank or a chamber. In simple words, it is a transmitter
that calculates liquid within a specified range that controls the same
amount of liquid within the limited area. These sensors come in both
vertical and horizontal mount transmitters that are perfect for monitoring
the liquids in tight and restricted areas.
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5. How does level sensor works?
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6. Working principals of Level Sensor-
1. Level sensors are put into a certain depth in the liquid to be measured. After putting these
sensors into the liquid, the pressure on the sensor’s front surface transfers into the liquid
level height.
2. The calculation formula for measuring the level of liquid is- P=ρ.g. H+Po3.
3. Here, P stands for Pressure on the liquid surface of the sensor, ρ stands for the density of
the liquid to be measured, g is for local acceleration of gravity, H is for depth at which sensor
drops into the liquid and Po is the atmospheric pressure on the liquid surface.
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