VEGA VEGAPULS 61 (≥ 2.0.0 - ≤ 3.8) Profibus PA - Manual (Page 10)

The type label contains the most important data for identification and
use of the instrument:
l Instrument type
l Article and serial number device
l Article numbers, documentation
l Technical data: Approvals, antenna type, process fitting, process
seal/temperature, signal output, voltage supply, protection, pro-
tection class
With the serial number, you can access the delivery data of the
instrument via www.vega.com, "VEGA Tools" and "serial number
search". In addition to the type label outside, you can also find the
serial number on the inside of the instrument.
3.2 Principle of operation
VEGAPULS 61 is a radar sensor in K-band (emitting frequency
approx. 26 GHz) for continuous level measurement.
The version with encapsulated antenna system is particularly
suitable for level measurement of aggressive liquids in small vessels.
The version with plastic horn antenna is particularly suitable for flow
measurement in open flumes or gauge measurement in bodies of
water.
The electronics with increased sensitivity enables the use of
VEGAPULS
61 also in applications with very poor reflective properties
or products with low ε
r
value.
The antenna of the radar sensor emits short radar pulses with a
duration of approx. 1 ns. These pulses are reflected by the product
and received by the antenna as echoes. The running time of the radar
pulses from emission to reception is proportional to the distance and
hence to the level. The determined level is converted into an
appropriate output signal and outputted as measured value.
Power supply via the Profibus DP/PA segment coupler or VEGALOG
571 EP cards. A two-wire cable according to Profibus specification
serves as carrier of both power and digital data transmission for
multiple sensors. The instrument profile of VEGAPULS 61 corre-
sponds to profile specification version 3.0.
The GSD (instrument master files) and bitmap files necessary for
planning your Profibus-DP-(PA) communication network are available
from the download section on the VEGA homepage www.vega.com
under "Services - Downloads - Software - Profibus". There you can
also find the appropriate certificates. In a PDM environment, an EDD
(Electronic Device Description) is also required to enable the full range
Type label
Application area
Functional principle
Power supply and bus
communication
GSD/EDD
10 VEGAPULS 61 • Profibus PA
3 Product description
28444
-EN
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