In this video we discussed
about Drum Level Electrode
principle of level electrode
Applying voltage and complete damo,
Sensor uses conductivity between the electrode and the ground to detect a level.
The sensor has a pair of electrodes, and applies alternating current to them.
When the liquid covers the electrodes, it forms a part of an electric circuit, causing current to flow.
The conductivity of a liquid medium may vary widely.
Once the liquid reaches the fill limit determined from the installation height of the electrode, the liquid medium closes the DC free alternating current circuit between the two electrodes (or between the container wall and an electrode).
A switching signal is produced from the sudden increase in current consumption.
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