Vega VEGAPULS 61 Operating Instructions Manual page 26

4 Mounting
Flow measurement with
Khafagi Venturi flume
26
Fig. 20: Flow measurement with Khafagi-Venturi flume: h
flume; B = tightest constriction in the flume
1 Position sensor
2 Venturi flume
In general, the following points must be observed:
•
Installation of the sensor at the inlet side
•
Installation in the centre of the flume and vertical to the liquid
surface
•
Distance to the Venturi flume
•
Min. distance of the sensor to max. storage level
3 ... 4 x h
max
90°
h
max
1
VEGAPULS 61 • Foundation Fieldbus
2
B
= max. filling of the
max.