In open vessels with
effective pressure line
VEGADIF 65 • Foundation Fieldbus
Fig. 15: Measurement setup, flow measurement in liquids
1
Orifice or impact pressure probe
2
Blocking valves
3
VEGADIF 65
4
Precipitator
5
Drain valves
6
Three-fold valve block
4.5 Measurement setup level
à Mount VEGADIF 65 below the lower measurement connection so
that the effective pressure lines are always filled with liquid
à Minus side is open to the atmospheric pressure
1
2
3
+
4
5
4 Mounting
2
–
4
5
6
23