Endress+Hauser Cerabar M - Page 98

Commissioning with an operating menu (onsite display/FieldCare) Cerabar M, Deltabar M, Deltapilot M
98 Endress+Hauser
Closed container with superimposed steam
Before calibrating the device, the impulse piping must be cleaned and filled with medium.
 See the following table.
Valves Meaning Installation
1 Fill container to a level above the lower tap.
A0030040
Closed container with superimposed steam
I Deltabar M
II Three-valve manifold
III Separator
1, 5 Drain valves
2, 4 Inlet valves
3 Equalizing valve
6, 7 Vent valves on Deltabar M
A, B Shut-off valves
2 Fill measuring system with medium.
Open A and B. Open shut-off valves.
Fill the negative impulse piping to the level of the
condensate trap.
3Vent device.
Open 2 and 4. Introduce medium.
Close 4. Close low-pressure side.
Open 3. Balance positive and low-
pressure side.
Open 6 and 7 briefly, then
close them again.
Fill device completely with
medium and remove air.
4 Set measuring point in operation.
Close 3. Shut off high-pressure side
from low-pressure side.
Open 4. Connect low-pressure side.
Now
– 3, 6 and 7 are closed.
– 2, 4, A and B are open.
5 Carry out calibration according to one of the following
methods:
• "In pressure" - with reference pressure ( ä 99)
• "In pressure" - without reference pressure ( ä 101)
• "In height" - with reference pressure ( ä 103)
• "In height" - without reference pressure ( ä 105)
A
II
III
III
–
P2
+
P1
6
7
3
24
I
15
+
–
B