48 Model 5380 PFPD Operator’s Manual
Rev. 3.1
4. Trim the top of the capillary column using a column scribe, and use a magni-
fying glass to verify that a square cut has been achieved. Ensure that no
column or scribe debris falls into the end of the column.
5. Wipe the column with a clean, methanol-moistened, lint-free lab tissue.
6. Carefully pull the capillary column
down until the column extends only
0.5 mm to 1.5 mm above the top of
the combustor support (see Figure
4.14). Tighten the GC column nut to
hold the column in position. Using a
magnifying glass, verify that the top
of the column is correctly positioned
0.5 mm to 1.5 mm above the top of
the combustor support.
Note: For optimal performance, the
column must be 0.5–1.5 mm
above the combustor support.
Wall Gas
Combustor
Gas
Detector
Base
Combustor
#282939C
or #282913C
Combustor
Support Washer
#288076
Combustor
Sleeve
#283093C
Large Aluminum
Washer
#282541
Combustor Support
#280461C
or #280453C
Column
Ferrule
#208330 (0.4 mm)
#196113 (0.5 mm)
#196105 (0.8 mm)
Nut
#223057
Figure 4.13. Combustor Assembly
Combustor
} 0.5–1.5 mm
Column
Combustor
Support
Combustor
Sleeve
Figure 4.14. Combustor Assembly
!
CAUTION: If the
tip of the capil-
lary column is
crushed due to
misplacement of
the detector
body, chromato-
graphic perfor-
mance will be
impaired and the
column must be
reinstalled.
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