ABB EasyLine Series Instructions For Installation Start-Up And Operation page 71

Connection of Process Gases and Test Gases
Instrument Air Connection
Combustion Air Connection
Combustion Gas Connection
Test Gas Connection
38
35
37
36
Flow
restrictor
33
34
Span gas Zero gas
p = 1000 ± 100 hPa
e
The numbering of the gas connections corresponds to the numbering in
the connection diagram (see page 66) as well as the labeling on the rear
of the analyzer module.
Instrument air is used as propellant for the air jet injector and as purging
air for the housing purge (see page 34).
Connect (see page 66) the instrument air line to the instrument air inlet of
the analyzer module via a pressure regulator (0 to 6 bar).
Connect (see page 66) the combustion air line to the combustion air inlet
of the analyzer module via a pressure regulator (0 to 1.6 bar).
See section "Fidas24: Connecting the Combustion Gas Line (see page
73)"
The test gas outlet is connected to the sample gas connection ex works.
If the test gases are to be introduced directly into the gas sampling point,
the connection between the test gas outlet and the test gas inlet on the
sample gas connection must be removed, and the respective opening in
the sample gas connection must be sealed with an M6 screw, so that it is
gas-tight.
Installing the Gas Analyzer
Pneumatic
shut-off valve
N H
2 2
71
Exhaust gas
Combustion air
p = 1200 ± 100 hPa
e
Instrument air
p = 4000 ± 500 hPa
e
Combustion gas
p = 1200 ± 100 hPa
e
Switch-over station
with safety valve
H
2