VEGA VEGASON 51P…53P Profibus PA - Manual (Page 27)

VEGASON 51P … 53P 27
VEGASON 53 on swivelling holder
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Reference plane
Min. distance
Transducer on traverse crane above a material heap
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VEGASON 52 on mounting boss
Reference plane
Max.
Mounting and installation
VEGASON 51 or 52 on the mounting boss. The socket
axis should be directed to the product surface.
Reference plane
Min. distance
Mounting boss
For threaded process connections (type 51,
52), the mounting boss should be short
enough to allow the transducer end to pro-
trude from the boss. This will prevent if from
interfering with the ultrasonic signals.
Different filling conditions often lead to a vary-
ing product surface orientation. This causes
the useful echo to vary in quality. For this
reason, the transducer should be mounted in
such a way that, even in the empty vessel,
the false echo intensity is as low as possible.
You can view the echo curve on the PC with
the adjustment program VVO (see chapter
"6 Setup/Adjustment with the PC/Sensor
optimisation/Echo curve“).
Material heaps
Large material heaps are usually measured
with several instruments, which can be
mounted on e.g. traverse cranes.