2 Installation
This section describes the mechanical installation of Cerabar S with and without
diaphragm seals.
2.1 Mounting instructions without diaphragm seal
Cerabar S
without diaphragm seal
– PMC 731
– PMP 731
The Cerabar S without diaphragm seal is mounted in the same way as a manometer. The
use of shut-off valves and pigtails is recommended. Its position depends upon the
application.
•
Measurement in gases:
Mount the shut-off valve above the
tapping point so that condensate can
run back into the process.
•
Measurement in steam:
Mount with a pigtail above the tapping
point.
The pigtail reduces the temperature in
front of the diaphragm to almost
ambient temperature. The pigtail must
be filled with water before start-up.
0 - 10 bar
BA211Y07
Figure 2.1
Mounted on a shut-off valve for
measuring gases
0 - 10 bar
BA211Y08
Figure 2.2
Mounted with U-shaped pigtail
for measuring steam/vapour
0 - 10 bar
BA211Y09
Figure 2.3
Mounted with circular pigtail for
measuring steam/vapour
Cerabar S FF 2 Installation
Endress+Hauser 9
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