Yokogawa GC8000 Process Gas Chromatograph - Manual (Page 424)

<7. Troubleshooting>
7-11
IM 11B08A01-01E
7.2.2 Malfunctioning Retention Time
Troubleshooting diagram for malfunctioning retention time is shown as followings.
F0303.ai
Malfunctioning retention time
Chromatogram is
malfunctioning
Yes
Yes
No
Yes
No
Yes
No
Yes
No
No
Malfunctioning chromatogram
Refer to "7.2.3 Malfunctioning Chromatogram".
Carrier gas pressure
is as specified
Set carrier gas pressure to
the specified value
Oven temperature
is as specified
Carrier gas
flow through detector vent
is as specified
Oven temperature
control failure
Leakage and cloggung in
piping inside the GC8000
Disconnect vent line pipng
outdside GC8000
Retention time is
still malfunctioning
Clogging in vent line piping
outside the GC8000
Change setting
values of gate timing
Figure 7.3 Troubleshooting Diagram for Malfunctioning Retention Time
2nd Edition : May 11, 2012-00
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