Endress+Hauser Cerabar S PMC 731, Руководство по эксплуатации

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•
Measurement in liquids:
Mount on the shut-off valve below the
tapping point or at the same height.
PVDF adapter
For instruments with PVDF adapter, a maximum torque of 7 Nm is permitted. The thread
connection may become loose at high temperatures and pressures. This means that the
integrity of the thread must be checked regularly and may need to be tightened using
the torque given above. Teflon tape is recommended for sealing with the ½ NPT thread.
Mounting the PMP 731
The PMP 731 with metallic sensor is available in the following versions:
•
with flush-mounted diaphragm or
•
with adapter (screwed on or welded in) and internal diaphragm.
A seal is enclosed appropriate to the material used and version.
Note!
The diaphragm of the Cerabar S must not be pressed in or cleaned with pointed or hard
objects.
0 - 10 bar
BA1
87Y07
Figure 2.4
Mounted on a shut-off valve for measuring liquids
Note!
14
G ½
Ø 26
17
14
14
22
2.5
G ½
Ø 26
27
21
17
Thread adapter
DIN 3852-E-G ½
Material: 1.4435 or
Alloy
G ½ external
Viton seal
Thread adapter
DIN 3852-A-G ½
with 1.4435 only
Threaded hole
DIN 3852-X-G ½
BA1
87Y70
PTFE seal
Alloy spring
Teflon
Teflon back-up ring
Figure 2.5
left:
An elastomer seal
to DIN 3852-E-G ½ is supplied
with the thread adapter
right:
With internal diaphragm and
welded or threaded adapter
Process connection with
flush-mounted diaphragm
version 1F
With internal diaphragm and
threaded adapter
Seal supplied
(with 1.4435 diaphragm only)
Welded
Welded adapter
– Material 1.4435
with 1.4435 diaphragm
– Material Alloy
with diaphragm in Alloy
BA1
87Y71
2 Installation Cerabar S
12 Hauser