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The Conductive Level Technology method of liquid level measurement
is based on the electrical conductance of the measured material,
which is usually a liquid that can conduct a current with a
low-voltage source (normally <20 V). One, two or more electrodes
are arranged above the conductive fluid that is to be detected.
If the filling material reaches the electrodes and makes contact,
the circuit between the electrodes is closed and a switching
signal is triggered. Such probes are generally used for point
level detection, and the detected point can be the interface
between a conductive and nonconductive liquid.
Conductive Level Technology
Advantages:
Conductive Level Technology
Disadvantages:
- Conductive,
non-coating liquids only
- Insulating
coatings can cause problems
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