9
3 Product description
VEGAPULS 31 • Two-wire 4 … 20 mA/HART
57820-EN-191014
•
Enter serial number manually in the VEGA Tools app (available
free of charge in the respective stores)
3.2 Principle of operation
VEGAPULS 31 is a radar sensor for continuous level measurement. It
is suitable for liquids and solids in virtually all industries, particularly in
the water and waste water industry.
The instrument emits a continuous, frequency-modulated radar signal
through its antenna. The emitted signal is reflected by the medium
and received by the antenna as an echo with modified frequency. The
frequency change is proportional to the distance and is converted into
the filling height.
3.3 Adjustment
On-site adjustment of the device is carried out via the integrated
display and adjustment unit.
Note:
The housing with display and adjustment unit can be rotated 330° for
optimum readability and operability without tools.
Devices with integrated Bluetooth module can be adjusted wirelessly
via standard adjustment tools:
•
Smartphone/tablet (iOS or Android operating system)
•
PC/notebook (Windows operating system)
1
3
2
Fig. 3: Wireless connection to standard operating devices with integrated
Bluetooth LE
1 Sensor
2 Smartphone/Tablet
3 PC/Notebook
Devices with signal output 4 … 20 mA/HART can also be operated
via a signal cable. This is done via an interface adapter and a PC/
notebook using DTM/PACTware.
Application area
Functional principle
Local adjustment
Wireless adjustment
Adjustment via the signal
cable
