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Option: Installing the isolation flange
Providing an overview
When must isolation
flanges be installed?
Providing an
overview
22
Topic
Providing an overview ......................................................................................... 22
Follow the safety instructions ........................................................................... 23
Installing the isolation flange ............................................................................ 24
If...
the pressure in the process exceeds the maxi-
mum allowable pressure on the transmitter unit
and the receiver unit (1.5 bar absolute)
the pressure in the process is below the maxi-
mum allowable pressure (1.5 bar absolute) on
the transmitter unit and the receiver unit
Isolation flanges cannot be installed in conjunction with insertion
tubes.
No.
Meaning
Transmitter unit
1
Purging flange
2
Isolation flange
3
Process
4
Isolation flange
5
Purging flange
6
Receiver unit
7
Operating instruction LS4000 for NH
then...
the isolation flange must
be installed.
the isolation flanges do
not have to be installed.
and H
O
OI/LS4000/NH3/H2O-EN
3
2
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