2 Installing 7890/7820/6890/6850 GC Columns
38 5975/5977 Series MSD Operating Manual
10 Adjust the column so it extends this specified distance from the end of the
transfer line.
For an EI XTR, SS, or Inert Source Installation (See Figure 5.), the column
extends about 1 mm.
For an EI HES Installation (See Figure 6.), the column extends 4 to 5 mm.
Use the flashlight and magnifying loupe, if necessary, to see the end of the
column inside the analyzer chamber. Do not use your finger to feel for the
column end.
Figure 5. Installing a capillary column in the GC/MS interface for an EI EXT, SS, or Inert source.
Figure 6. Installing a capillary column in the GC/MS interface for an EI HES source.