ACF5000 FTIR ANALYZER SYSTEM | OI/ACF5000-EN REV. A 47
Commissioning
Recommissioning
Initial commissioning
The analyzer system is essentially commissioned by the authorized person-
nel of the manufacturer or of the supplier.
NOTICE The initial commissioning of the option “Hydrogen monitoring of the analyzer
cabinet” may only be performed by certified personnel of the manufacturer of
the gas warning central and the gas sensor.
Recommissioning
To restart the analyzer system from cold, after a prolonged shutdown for
example, proceed as follows.
Procedure
1 IMPORTANT! Connect instrument air and purge the analyzer system for
30 minutes before opening the analyzer cabinet door and powering up
the analyzer system.
2 Open analyzer cabinet door.
1 Check pre-pressure and, where applicable set to p
e
= 5.5 to 7 bar.
2 Check pressures and flows on the pneumatic plate on the right-hand
cabinet internal wall against the values in section "Operating gases
and test gases" (see page 25).
CAUTION! The hydrogen supply must remain switched off!
NOTICE: The purge line between the analyzer system and gas sampling
probe must be laid.
3 Power supply power-up
1 Make sure that all circuit breakers are deactivated.
2 Turn on the main switch.
3 Activate the circuit breaker for the FTIR spectrometer.
4 Activate all other circuit breakers.
5 The analyzer system starts to heat up automatically.
The assemblies in the analyzer cabinet reach their target tempera-
tures after approx. 2 hours. The gas sampling probe reaches its tar-
get temperature after 3 to 4 hours.
The gas extraction begins as soon as the temperatures of the FTIR
cell and ASP block reach 150°C.
The sample gas input and output pressures should adjust automat-
ically to SGI = 850 hPa and SGO = 750 hPa.
Failure to reach these pressure values indicates a leak in the analyzer
system.
6 Connect the sample gas line to the gas sampling probe.
7 Have a complete seal integrity test carried out by certified and author-
ized personnel.
8 Turn on the hydrogen supply and restart the FID (see below).
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