VEGA VEGASON 51V…53V - Manual (Page 24)

24 VEGASON 51 V … 53 V
0
0 m
7 m
50 %
1,2 1,2 m 0,4 0,4
100 %
5,5°
12°
4 m
Meas. distance
0
0 m
15 m
100 %
50 %
1,2 1,2
m
0,4 0,4
3°
8°
Meas. distance
Beam angle and false echoes
The ultrasonic impulses are focussed by the
transducer. The impulses leave the trans-
ducer in conical form similar to the beam
pattern of a spotlight. The beam angle is 5,5
°
(type 51/52) or 3
°
(type 53) at -3 dB emitted
power.
Any object in this beam angle causes a false
echo. Within the first few metres of the beam
angle, tubes, struts or other installations
cause strong false echoes. In a distance of
2 m the false echo of a strut has 9-times more
amplitude than at a distance of 6 m.
If possible, provide a vertical directing of the
sensor axis to the product surface and avoid
if possible, struts within the 100%-beam
angle, e.g. by tubes and struts.
Mounting and installation - General installation instructions
VEGASON 53
Emitted power
Emitted power
Emitted power
Emitted power
VEGASON 51/52