VEGA VEGAPULS 45 VBUS - Manual (Page 24)

24 VEGAPULS 42, 44 and 45 – VBUS
Mounting and installation
0 %
~45˚
ш 100,8
0,0…0,4
1,5…2
3,6
0,0…0,4 150…500
5…10
3,6
ш 95 2
100 %
VEGAPULS 44
Flange
DN 100
Connecting
sleeve
Welding neck
flanges
Welding of the plain
welded flange
Welding of the connect-
ing sleeves
Meas. pipe fastening
Vessel
bottom
Deflector
Deburr the
holes
When measuring products with lower dielec-
tric values (< 4), a part of the radar signal
penetrates the medium. If the vessel is nearly
empty, an echo is generated by the medium
and the vessel bottom. In some cases, the
vessel bottom generates a stronger signal
echo than the product surface. With a deflec-
tor on the measuring pipe end, the radar
signals are scattered. In nearly empty ves-
sels and products with low dielectric value,
the medium then generates a stronger echo
than the vessel bottom.
Thanks to the deflector, only the useful signal
is received in a nearly empty vessel - the
correct measured value is thus transmitted
and the 0 % level reliably detected.
Instead of a deflector, the standpipe or surge
pipe can be equipped with a quadrant pipe
at the end. This reflects the radar signals that
penetrate the medium diffusely to the side
and reduces strong echoes from the tube
end or vessel bottom.
Welding of the welding
neck flange
0 %
0 %
Quadrant pipe on the bypass tube end
Quadrant pipe on the standpipe end