12 Maintaining the NPD
To Install a Capillary Column in the NPD
Maintaining Your GC 191
If the column id is 0.1 mm or less position the column so it extends above the ferrule by
48 mm (capillary optimized fitting). Slide the septum up to hold the column nut and
ferrule at this fixed position.
c Insert the column into the detector. Slide the nut and ferrule up the column to the
detector base. Finger-tighten the column nut until it grips the column.
d Adjust the column (not the septum) position so that the septum is even with the
bottom of the column nut. Tighten the nut an additional 1/4 turn with a wrench.
8 Exit maintenance mode. Select Maintenance > Instrument > Perform Maintenance >
Maintenance Mode > Finished.
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