VEGA VEGASON 51V…53V - Manual (Page 26)

26 VEGASON 51 V … 53 V
Dished tank ends
On dished tank ends please do not mount
the instrument in the centre but approx. 1/2
vessel radius from the centre. Dished tank
ends can act for the ultrasonic pulses as
paraboloidal refelctors. If the transducer is
placed in the "focus" of the parabolic tank
end, the transducer receives amplified false
echoes. Hence the transducer should be
mounted outside the "focus". Parabolic ampli-
fied false echoes are hence avoided.
Flange on dished vessel ends
Mounting boss on a dished tank end
Open vessels
On open vessels the use of the instruments
on a mounting lever is recommended. Mount
the low-weight sensor to a mounting lever.
Open vessels
Reference pane
1 /
2
vessel radius
< 60 mm
Reference pane
< 60 mm
1 /
2
vessel radius
Min. meas.
distance
Mounting and installation - Measurement of liquids
Min. meas.
distance
Reference pane