Conductive Level Detection: Detection by conductivity provides a simple and economic solution to level detection for appliances which conduct electricity, even if they have a low level of conductivity. Conventional applications: High-level safety, Protecting pumps against no-load operation, Adjustment between a minimum point and a maximum point.

Different combinations of electrodes make a number of applications possible:
-Level detection in a tank,
-Detection of several levels in the same tank,
-Adjustment between two levels in the same tank, etc

Présentation
A Conductive Level Detection channel is made up of two parts :
1. The Electronic Detector :
-A number of relays: one or two (dead contact),
-Sensitivity adjustment: with or without,
-Type of assembly: in cabinet on DIN rail or outside,
2. The Sensor adapted to the specific features of the installation - temperature, pressure, type of fitting, length, etc. It is made up of :
-An electrical connection head,
-A process fitting: flange, threaded a connection, clamp connection, etc …,
-One or more electrodes, rigid or wired

Operating principle
The electronic detector supplies alternating current which goes through the circuit made up of :
-An ELECTRODE adjusted to the level to be detected,
-A reference ELECTRODE (which may be the tank itself),
-The LIQUID detected, which must be a conductor of electricity, even a poor one.
When the liquid closes the circuit between the electrodes, the current acts on the detector. In the detector, a relay output with a switch contact makes it possible to obtain an alarm, a command, or an adjustment