VEGA VEGASON 51V…53V - Manual (Page 37)

VEGASON 51 V … 53 V 37
Socket piece too long
When mounting the sensor in a too long
socket piece, strong false echoes are
caused, aggravating the measurement. Note
that the transducer protrudes at least 30 mm
out of the socket piece.
Mounting and installation - Installation error
Correct and wrong length of socket piece
Wrong
Wrong
Mounting on a vessel with parabolic tank top
Parabolic effects on dished boiler head
or basket arch vessels
Round or paraboilic tank tops act for the
signals like a paraboilic mirror. If the sensor is
placed to the focus of such a paraboilic tank
top the sensor receives amplified false ech-
oes. The optimum mounting is generally in the
range of the half vessel radius from the cen-
tre.
Correct
~ 1 /
2
vessel
radius
Wrong
< 60 mm
Correct
Reference pane
< 60 mm