Endress+Hauser Deltabar PMD75B HART - Page 46

Commissioning Deltabar PMD75B HART
46 Endress+Hauser
Now:
1 (for arrangements with 5 valves), 3, 5(for arrangements with 5 valves), 6 and 7 are
closed.
2 and 4 are open.
A and B are open (if present).
Check the adjustment and perform it again if necessary.
Flow measurement
Before the device is adjusted, the pressure piping must be cleaned, where necessary, and
filled with fluid.
+ –
A B
–
P2
+
P1
6
7
3
2 4
+ –
A B
II
I II
I II
–
P2
+
P1
6
7
3
2 4
I
II
I
1 5
A0030036
I Measuring device
II Three-valve manifold
III Separator
1, 5 Drain valves
2, 4 Inlet valves
3 Equalizing valve
6, 7 Vent valves on the measuring device
A, B Shutoff valve
Top diagram: preferred installation for gases
Bottom diagram: preferred installation for liquids
1. Close 3.
2. Fill measuring system with fluid.
 Open A, B, 2, 4 (fluid flows in).