VEGA VEGADIF 55 4 … 20 mA_HART - Manual (Page 14)

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2 2
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Fig. 7: Measurement setup, flow measurement in liquids with VEGADIF 55
1
Orifice or impact pressure probe
2 Block valves
3 VEGADIF 55
4 Precipitator
5 Drain valves
6 Three-fold valve block
à Mount VEGADIF 55 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.
à Fill the effective pressure lines to the height of the condensate
vessels before setup
Flow measurement in
liquids
14 VEGADIF 55 • 4 … 20 mA/HART
4 M ounting
31731
-EN
-081119