Vega VEGAPULS 62 Operating Instructions Manual page 31

Flow measurement with
Khafagi Venturi flume
VEGAPULS 62 • Profibus PA
90°
1
Fig. 22: 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
h
max
B
4 Mounting
2
= max. filling of the
max.
31