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

4 .4 Mounting instructions with differential
pressure measurement
+
➃
1
2
3 3
Fig. 15: Measurement setup, differential pressure measurement in gases and
vapours with VEGADIF 55
1
VEGADIF 55
2 Three-fold valve block
3 Block valves
4 E.g. filter
à Mount VEGADIF 55 above the measurement loop so that
condensate can drain off in the process cable.
+
–
1
2
4
5
6
4
5
2
3
Fig. 16: Measurement setup, flow measurement in liquids with VEGADIF 55
1
E.g. filter
2 Block valves
3 VEGADIF 55
4 Precipitator
5 Drain valves
6 Three-fold valve block
Differential pressure
measurement in gases
and vapours
Differential pressure
measurement in liquids
20 VEGADIF 55 • 4 … 20 mA/HART
4 M ounting
31731
-EN
-081119