Agilent Technologies 5977B Series Operating Manual page 48

2 Installing 7890 GC Columns


Procedure
Always wear clean gloves while handling any parts that go inside the GC or the
C A U T I O N
analyzer chambers.
The analyzer, GC/MS interface, and other components in the analyzer chamber
WA R N I N G
operate at very high temperatures. Do not touch any part until you are sure it is cool.
1 Condition the column. (See
Dangerous voltages exist inside the analyzer chamber, which can result in fatal injury.
WA R N I N G
Do not open the analyzer chamber door for any reason. If access is ever required, trained
service personnel must first disconnect the instrument from the building power source.
2 Vent the MSD and open the analyzer chamber. (See
The GC operates under high temperatures. Do not touch any GC parts unless you are
WA R N I N G
certain they are cool.
3 If installed, remove the isolation tip from the end of the GC/MS interface.
4 Slide an interface nut and conditioned ferrule onto the free end of the GC
5 Slide the column into the GC/MS interface.
6 Use the column cutter to score the column 2 cm from the end.
7 While holding the column against the column cutter with your thumb, break
8 Inspect the end for jagged edges or burrs. If the break is not clean and even,
9 Wipe the end with alcohol.
10 Adjust the column so it extends this specified distance from the end of the
48
page 113 and "To Open the Analyzer Chamber"
can see the end of the GC/MS interface.
column. The tapered end of the ferrule must point towards the nut.
the column against the edge of the column cutter.
repeat steps 6 and 7.
transfer line. 

For an XTR, SS, Inert, or CI Source Installation (See
page 44.), the column extends about 1 mm.

"To Condition a Capillary Column"
on page 152.) Be sure you
5977B Series MSD Operating Manual

on page 41.)
"To Vent the MSD" on
Figure 5 on