VEGA VEGADIF 65 4 … 20 mA_HART - Manual (Page 22)

22
4 Mounting
VEGADIF 65 • 4 … 20 mA/HART
36128-EN-130417
+ –
1
2
3 3
5 5
6
4
Fig. 18: Measurement setup, flow measurement in vapours
1 Condensate vessels
2 Orifice or impact pressure probe
3 Blocking valves
4 VEGADIF 65
5 Drain or blow-off valves
6 3-fold valve block
When using a 5-fold valve block, the drain or blow-off valves are
already integrated.
1. Mount VEGADIF 65 below the measurement loop so that the ef-
fective pressure lines are always filled with liquid and gas bubbles
can bubble up to the process line
2. 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.
3. Fill the effective pressure lines to the height of the condensate
vessels before setup
In liquids