Varian 4000 GC, Руководство по эксплуатации оборудования

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Replacing a GC Column
Tools and Materials Required:
•
3/16" wrench
•
Ceramic scoring wafer
•
5/16" wrench
•
Scribing tool
•
Graphite/Vespel® ferrule
•
Column measuring tool: 03-931805-01 (for internal mode)
•
Methanol
•
Lint free cloth
Removing the Capillary Column from the System
1. Go to “Moving the Mass Spectrometer Away From the GC” on page 37.
2. Go to “Turning Off the Mass Spectrometer” on page 34.
WARNING:
SHOCK HAZARD
Dangerous voltages are present. Unplug power cord.
3. Use a 3/16" and a 5/16" wrench to loosen the brass nut on the end of the
transfer line.
4. Remove the capillary column from the transfer line.
5. Remove the brass nut with ferrule from the column.
6. Remove the ferrule from the nut. Discard the ferrule. Alternatively, a new
column nut can be used (03-949551-00).
7. From inside the GC oven, pull the transfer line end of the column back into
the hole in the side of the GC. Leave the free end of the column on the floor
of the oven.
8. Use a 5/16" wrench to loosen the capillary column nut that secures the
column to the injector.
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