VEGA VEGASON 51K…53K - Manual (Page 30)

30 VEGASON 51K … 53K
B
Khafagi-Venturi flume
90°
h
max
Sensor
3 … 4 x h
max
Flow measurement on open flumes
h
max
≥
2 x h
max Overfall edge
90°
Flow measurement on open flumes
Upstream water Downstream water
≥
5 cm
90°
3 … 4 x h
max
Overfall edge
Mounting and installation
4.5 Flow measurement
The short examples on this page only give
introductory information for your flow meas-
urement. Planning information is given by the
flume manufacturers and in special literature.
Rectangular flume
- Installation of the sensor on the upstream
side
- Note distance to the overfall edge
(3 … 4 x h
max
)
- Installation centered to the flume
- Edge opening
≥
2 x h
max
from ground
- Installation perpendicular to the liquid sur-
face
- Keep min. distance relating to h
max
- Min. distance of the edge opening of down-
stream water
≥
50 mm
Khafagi-Venturi flume
- Installation of the sensor on the inlet side
- Note distance to the Khafagi-Venturi flume
(3 … 4 x h
max
)
- Installation perpendicular to the liquid sur-
face
- Keep min. distance relating to the height of
damming h
max
≥
max.
distance