Download Operating Instructions - VEGADIF 65

4 Mounting
4.6 Differential pressure measurement
In gases and vapours
à Mount VEGADIF 65 above the measurement loop so that
condensate can drain off in the process cable.
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Fig. 22: Measurement setup, differential pressure measurement in gases and
vapours
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In liquids
VEGADIF 65
Three-fold valve block
Blocking valves
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.
36128-EN-091126
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VEGADIF 65 • 4 … 20 mA/HART