Vega VEGAPULS 31 - Principle of Radar Measurement; On-site Adjustment Methods

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reectedbythemedium
andreceivedbytheantennaasanechowithmodiedfrequency.The
frequency change is proportional to the distance and is converted into
thelling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