VEGA VEGASON 66 4 … 20 mA_HART four-wire - Manual (Page 20)

If the reflective properties of the medium are good, you can
mount VEGASON 66 on a socket piece. The socket end
should be smooth and burr-free, if possible also rounded.
Carry out a false echo storage.
In liquids, direct the sensor as perpendicular as possible to the
product surface to achieve optimum measurement results.
Fig. 10: Orientation in liquids
To optimally align the sensor to solid products, a swivelling
holder can be implemented.
The ultrasonic sensor should be installed at a location where
no installations cross the ultrasonic beam.
Vessel installations such as for example, ladders, limit
switches, heating spirals, struts etc. can cause false echoes
superimposed on the useful echo. Make sure when planning
your measuring site that the ultrasonic signals have "free
access" to the measured product.
If there are existing vessel installations, a false echo storage
should be carried out during setup.
If large vessel installations such as struts or supports cause
false echoes, these can be attenuated through supplementary
measures. Small, inclined sheet metal or plastic baffles above
the installations scatter the ultrasonic signals and avoid direct
false echoes.
Fig. 11: Cover smooth profiles with deflectors
Sensor orientation
Vessel installations
20 VEGASON 66 - 4 ... 20 mA/HART - four-wire
Mounting
28783
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