Differential Pressure Measurement - Vega VEGADIF 65 Operating Instructions Manual

4 Mounting
In gases and vapours
In liquids
26
4.6 Differential pressure measurement
à Mount VEGADIF 65 above the measurement loop so that
condensate can drain off in the process cable.
3
Fig. 22: Measurement setup, differential pressure measurement in gases and
vapours
1 VEGADIF 65
2
Three-fold valve block
3
Block 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
VEGADIF 65 • 4 ... 20 mA/HART