Thermo Scientific TSQ 8000, User Manual

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2
Changing the Column
Replacing the Factory Installed Column
Thermo Scientific TSQ 8000 Evo User Guide 17
During the shutdown procedure the vacuum and heaters lights will remain off. Once the
procedure is complete and the instrument is ready to be powered off, the power light will
turn amber and start blinking rapidly. At this point it is safe to power off the
TSQ 8000 Evo system.
3. On the left side of the instrument, push down on the power switch to power-off the
TSQ 8000 Evo system.
Figure 15. Powering Off the TSQ 8000 Evo Instrument
4. Open the front door of the instrument.
5. Look behind the right side of the vacuum interlock shield and twist the vent valve knob
one and a half times in a counterclockwise direction to open the vent.
6. Remove the current column:
a. Make sure the heated zones of the GC are cooled down. Refer to the GC
documentation for instructions.
b. Turn off the carrier gas and if used, the detector gas. See the GC documentation for
information about using detector gases.
c. Open the front door of the GC.
d. Unscrew the transfer line nut and remove the column from the transfer line.
e. Unscrew the injector and detector nuts and remove the column.
Vacuum Interlock Shield Power Switch
Vent Valve Knob
WARNING BURN HAZARD: The injector, oven, and transfer line may be hot.
Allow them to cool to room temperature before touching them.