Thermo Scientific ISQ 7000 Hardware Manual page 50

1
Performing Routine Maintenance
Replacing a Column
22 ISQ 7000 Hardware Manual
Figure 13. Positioning the Column in the Transfer Line
Transfer Line
22. Tighten the spring loaded transfer line nut 1 flat (60°) forward—back to where it is secure
enough in the transfer line that you cannot move it.
23. Tighten the spring loaded transfer line nut 1 additional quarter turn.
24. Remove the cut septum.
25. Condition the graphite Vespel ferrule:
a. Raise the oven temperature to the maximum temperature you will operate the GC.
b. Wait 10 minutes.
c. Lower the oven temperature to 40 °C (104 °F) and allow it to cool before continuing.
CAUTION BURN HAZARD: The oven may be hot. Allow it to cool to room temperature
before opening it. The injector will still be hot, so do not touch it.
ATTENTION RISQUE DE BRÛLURE : le four peut être chaud. Laissez-le refroidir à la
température ambiante avant de l'ouvrir. L'injecteur sera toujours chaud, donc ne le touchez
pas.
26. Close the front door of the GC.
27. Restore working conditions.
a. Raise the oven temperature to the initial temperature that you will use.
b. Turn on vacuum compensation on the GC.
28. Power on the ISQ 7000 instrument.
Spring Loaded Transfer
Line Nut
Column
Septum
Thermo Scientific