VEGA VEGASCAN 850 - Manual (Page 48)

48 VEGASCAN 850
Buildup
Correct Wrong
Buildup
If the sensor is mounted too close to the
vessel wall, buildup and adhesions of the
measured product to the vessel wall can
cause false echoes. Position the sensor at a
sufficient distance from the vessel wall.
Please also note chapter "4.2 General instal-
lation instructions“.
Inflowing material
Do not mount the instrument in or above the
filling stream. Ensure that you detect the
product surface and not the inflowing mate-
rial.
Mounting and installation
Inflowing material
Correct Wrong
Correct Wrong
Min. distance
high water
Low water
Shield
60°
Correct Wrong
Filtering out of a level echo
Overflow basin
The expected max. high water determines
the installation height, to ensure the min.
distance of the transducer even with the
highest water level. The low water level
should be covered in the transducer area
with a shield to filter out echoes from ex-
posed basin surfaces.