Measurement Setup Differential Pressure - Vega VEGADIF 65 Operating Instructions Manual

In gases and vapours
In liquids
VEGADIF 65 • Foundation Fieldbus
4.7 Measurement setup differential pressure
à Mount VEGADIF 65 above the measurement loop so that
condensate can drain off in the process cable.
Fig. 25: Measurement setup, differential pressure measurement in gases and
vapours
1 VEGADIF 65
2
Three-fold valve block
3
Blocking valves
4
E.g. filter
à Mount VEGADIF 65 below the measurement loop so that the
effective pressure lines are always filled with liquid and gas
bubbles can bubble up to the process line
à For measurements in products with solid content such as e.g. dirty
liquids, the installation of separators and drain valves is
recommended to enable collection and removal of debris and
sediment.
1
2
+
3
4
4 Mounting
3
31