VEGA VEGAPULS 62 (≥ 2.0.0 - ≥ 4.0.0) Modbus and Levelmaster protocol Approval according to LPR radio standard - Manual (Page 24)

l Installation in the centre of the flume and vertical to the liquid
surface
l Distance to the overfall orifice
l Distance of orifice opening above ground
l Min. distance of the orifice opening to bottom water
l Min. distance of the sensor to max. storage level
2
3 ... 4 x h
max
90°
h
max
d
B 1
Fig. 18: Flow measurement with Khafagi-Venturi flume: d = Min. distance to
sensor; h
max.
= max. filling of the flume; B = tightest constriction in the flume
1 Position sensor
2 Venturi flume
In general, the following points must be observed:
l Installation of the sensor at the inlet side
l Installation in the centre of the flume and vertical to the liquid
surface
l Distance to the Venturi flume
l Min. distance of the sensor to max. storage level
Flow measurement with
Khafagi Venturi flume
24 VEGAPULS 62 • Approval according to LPR radio standard
4 Mounting
41722
-EN
-120706