Liquid level sensors are components that activate an alert or alarm when the liquid inside a certain container reaches the maximum level. This device is installed in order to achieve automation for the filling of containers and, in this way, know at all times and in real time the capacity inside the container. Liquid level sensors are placed in tanks, reservoirs, hoppers, vats and others. Its operation, in general terms, is based especially on being a signal receiver capable of detecting the moment in which the liquid level inside has reached a maximum or minimum point. These devices also have a liquid level switch that activates and warns when the liquid level is not adequate. But where are they used? In any system, machinery or vehicle that needs some liquid for its operation. In this sense, this liquid can be a hydrocarbon, water (especially the cooling systems), machinery with valves, refrigeration or heating equipment and anyone who has to take care of the level of a certain liquid for its proper functioning. Thanks to this sensor, it is possible to automate both the filling process and control at all times of the amount of liquids that are inside various systems or equipment.
Liquid sensors have many and different applications. However, all of them are related and have in common that they are devices for measuring the level of a certain liquid in a container for some purpose. These are the main uses and what to consider when purchasing a level sensor for liquids.
The capacitive liquid level sensor is the best proven and cheapest solution to measure and detect the level in equipment with liquids and also with granulated solids. They are available on the market for various equipment and transmitters for level measurement and control and switches for level detection. These devices also make it possible to measure the interface in various processes of the apparatus. The core of the capacitive sensor for liquids is an electrode that is capable of generating an alternating electric field that exits towards the detection surface. In this process, the granular solid object or liquid substance in the measuring field reservoir influences the electrical capacity of the alternating field. This causes the so-called capacitance to increase, that is, the potential to collect or let energy flow and this peculiarity is notified to the oscillator that allows knowing the state of the liquid or granulated solid inside a tank or deposit.
Within the liquid level sensors you can find many variants depending on the tank or reservoir or the machinery that requires it. Each of them use different measurement systems:
As soon as the water or liquid drops or exceeds the necessary limit, the buoy or float activates a level switch and this will give a warning so that corrective measures can be taken.
This type of liquid level sensor needs configuration prior to installation that allows it to be adjusted to the density of the liquid to be measured.
In this way, upon reaching the lowest point, a pressure equivalent to the level of liquid contained in the tank is exerted. After this, it will transmit the level to the point of the pressure sensor to inform the person in charge of the situation.
This rebounding ultrasonic signal is directly proportional to the distance that the emitted wave has traveled. In summary, detailed information is generated that accounts for the level of liquid contained inside.
c/ Viver, 25 bajo, Local trasero
Our shops: Monday to Friday: 9.00 -17.00pm
Online: 7 days a week, 365 days a year