VEGA VEGASON 66 Profibus PA - Manual (Page 9)

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Fig. 1: VEGASON 66 compact with swivelling holder
1 Housing cover with integrated PLICSCOM (optional)
2 Housing with electronics
3 Swivelling holder with flange
4 Transducer
3.2 Principle of operation
VEGASON 66 is an ultrasonic sensor for continuous level
measurement. It is particularly suitable for solids, but also good
for liquids.
The transducer of the ultrasonic sensor transmits short
ultrasonic pulses to the measured product. These pulses are
reflected by product surface and received again by the
rtansducer as echoes. The running time of the ultrasonic
pulases from emission to reception is proportional to the
distance and hence the level. The determined level is
converted into an appropriate output signal and outputted as
measured value.
Four-wire electronics with separate power supply.
Power supply of the signal output is via the Profibus DP/PA
segment coupler or VEGALOG 571 EP cards. A two-wire
cable acc. to Profibus specification serves as carrier of both
power and digital data signals for multiple sensors. The
instrument profile of VEGASON 66 corresponds 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
Area of application
Physical principle
Power supply and bus com-
munication
GSD/EDD
VEGASON 66 - Profibus PA 9
Product description
28789
-EN
-060731