VEGA VEGAPULS 45 VBUS - Manual (Page 16)

16 VEGAPULS 42, 44 and 45 – VBUS
Emission cone of a DN 80 flange antenna
Meas. distance
Mounting and installation
20˚
10˚
20 m
0 m
3,0 1,7 3,0 1,7 0 m
50%
25%
Mounting on DIN socket piece
When mounting on dished vessel tops, the
antenna length should at least correspond to
the length of the longer sockets.
Mounting on a dished vessel top; max. socket length
depending on flange size and, if applicable, on the
length of the antenna extension (see "7.3 Dimen-
sions").
3.2 Measurement of liquids
Flange antennas
In most cases, the mounting of radar sensors
is done on short DIN socket pieces. The
lower side of the instrument flange is the
reference plane for the measuring range. The
antenna must always protrude out of the
flange tube.
When the DIN socket piece is longer, please
make sure that the horn antenna is not cov-
ered completely by the socket. It is better if
the antenna protrudes slightly out of the
socket.
Reference plane
20 m
0 m
2,5 1,3 2,5 1,3 0
25%
m
14˚
8˚
50%
Emission cone of a DN 100 and DN 150 flange an-
tenna
VEGAPULS 44 with
ø 75 mm horn
Meas. distance
VEGAPULS 44 with
ø 95 mm horn
Vessel center or
symmetry axis
<135…310mm
(250…425mm
with antenna
extension)
< 135 mm (DN 50)
< 210 mm (DN 80)
< 310 mm (DN 100, DN 150)