7
3 Product description
Conductive probe EL 2 •
54461-EN-220324
Alternatively, you can access the data via your smartphone:
•
Download the VEGA Tools app from the "
Apple App Store
" or the
"
Google Play Store
"
•
Scan the DataMatrix code on the type label of the instrument or
•
Enter the serial number manually in the app
3.2 Principle of operation
EL 2 is a point level sensor with partly insulated conductive electrode
for level detection.
EL 2 is very rugged and can be used in all areas of industrial process
technology.
The level switch can be used in conductive liquids such as e.g. water.
Typical applications are overfill and dry run protection.
The conductive measuring principle places no special requirements
on installation. Hence, many different applications can be equipped
with EL 2.
Conductive probes detect the product resistance when their elec-
trodes are covered by the product.
The switching signal is determined by the length or mounting position
of the respective electrode.
A low alternating current flows through the electrodes, is measured for
amplitude and phase position by the electronics of the controller and
converted into a switching command.
EL 2 is operated with an external processing unit. The connected
controller powers EL 2 and provides a switching signal. A connected
device can be activated directly with this switching command (e.g. a
warning system, a PLC, a pump, etc.).
You can find the exact range of the voltage supply in chapter "
Techni-
cal data
" in the operating instructions manual of the controller.
3.3 Adjustment
The probe does not have its own electronics. The measurement is
carried out via the connected controller.
3.4 Packaging, transport and storage
Your instrument was protected by packaging during transport. Its
capacity to handle normal loads during transport is assured by a test
based on ISO 4180.
The packaging of standard instruments consists of environment-
friendly, recyclable cardboard. For special versions, PE foam or PE
foil is also used. Dispose of the packaging material via specialised
recycling companies.
Transport must be carried out in due consideration of the notes on the
transport packaging. Nonobservance of these instructions can cause
damage to the device.
Area of application
Functional principle
Voltage supply
Packaging
Transport
