VEGA VEGADIF 65 Profibus PA - Manual (Page 29)

29
4 Mounting
VEGADIF 65 • Profibus PA
36129-EN-130417
1
+
–
0,3 m
0,8
1,0
Fig. 28: Measurement setup with interface measurement
4.7 Measurement setup differential pressure
→
Mount VEGADIF 65 above the measurement loop so that con-
densate can drain off in the process cable.
4 4
1
2
3 3
+
Fig. 29: Measurement setup with differential pressure measurement between
two pipelines in gases and vapours
1 VEGADIF 65
2 3-fold valve block
3 Blocking valves
4 Pipelines
→
Mount VEGADIF 65 below the measurement loop so that some
condensate can collect in the effective pressure lines.
The ventilation is carried out via the ventilation valves on the instru-
ment, the 5-fold valve block enables blowing out the cables.
In gases and vapours
In vapour and conden-
sate plants