VEGA VEGAPULS 61 (≥ 2.0.0 - ≥ 4.0.0) Modbus and Levelmaster protocol - Manual (Page 26)

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4 Mounting
VEGAPULS 61 • Modbus and Levelmaster protocol
41361-EN-121011
2
3 ... 4 x h
max
90°
h
max
d
1 B
Fig. 24: Flow measurement with Khafagi-Venturi flume: d = Min. distance to sen-
sor; 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:
•
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
Flow measurement with
Khafagi Venturi flume