VEGA VEGAKON 66 with transistor output - Manual (Page 8)

3 .2 Principle of operation
The conductive VEGAKON 66 compact level switches detect
levels of conductive liquids.
If at least two electrodes are covered with a conductive
medium, small alternating currents (<1 mA) flow from the
measuring electrode to the ground electrode.
1
3
2
Fig. 2: Functional principle
1
Ground probe
2 Max. level (max. electrode)
3 Min. level (min. electrode)
These alternating currents are measured in respect to their
amplitude and phase position and converted into a switching
command.
VEGAKON 66 can be used for reliable detection of products
over a very wide conductivity and viscosity range.
A level detection can be realised with two measuring electro-
des, e.g. a pump or two-point control with three measuring
electrodes.
VEGAKON 66 is a compact instrument, i.e. it can be operated
without external evaluation system. The integrated electronics
evaluates the level signal and outputs a switching signal. With
this switching signal, a connected device can be operated
directly (e.g. a warning system, a PLC, a pump etc.).
The data for power supply are stated in chapter "Technical
data" in the "Supplement".
Area of application
Functional principle
Supply
8 VEGAKON 66 - with transistor output
Product description
32650
-EN
-070615