VEGA VEGAPULS 81 - Manual (Page 33)

VEGAPULS 64 and 81 33
Note the sensor axis is directed vertically to
the product surface, avoid installations within
the 100%-cone such as e.g. pipes and struts.
If possible provide a “clear view“ inside the
emission cone to the product and avoid instal-
lations in the first third of the emission cone.
Optimum measuring conditions are available
when the emission cone is free from installa-
tions.
Mounting and installation: General installation instructions
Emission cone of a DN 150 horn antenna
Emission cone of a rod antenna (independent
on flange size) Emission cone of a DN 250 horn antenna
0
10 m
20 m
30 m
0 m
35 m
20°
30°
100%
50%
6 9 6 9
m
3,5 3,5
0 4,3 6,7 4,3 6,7
10 m
20 m
30 m
0 m
35 m
14°
22°
100%
50%
2,5 2,5
m
0
10 m
20 m
30 m
0 m
35 m
24°
35°
100%
50%
7,3 7,3 10,5 10,5
m 4,2 4,2
Measuring
distance
Measuring
distance
Measuring
distance