23
4 Mounting
WIKA Operating Instructions - Differential pressure transmitter DPT-20
+
–
1
2
2
5
5
6
3
4
4
Fig. 19: Measurement setup, flow measurement in liquids
1 Orifice or impact pressure probe
2 Blocking valves
3 3-fold valve block
4 Precipitator
5 Drain valves
6 DPT-20
4.5.4 Differential pressure
•
Mount device above the measurement loop so that condensate
can drain off in the process cable.
1
1
2
2
+
3
4
Fig. 20: Measurement setup with differential pressure measurement between
two pipelines in gases and vapours
1 Pipelines
2 Blocking valves
3 3-fold valve block
4 DPT-20
•
Mount device below the measurement loop so that some conden-
sate can collect in the effective pressure lines.
In gases and vapours
In vapour and conden-
sate plants
