Installing GC Columns 2
5975 Series MSD Operation Manual for MassHunter 47
9 Hand-tighten the nut. Make sure the position of the column does not change
as you tighten the nut. Reinstall the spring-loaded tip seal if it was removed
earlier.
10 Check the GC oven to be sure that the column does not touch the oven
walls.
11 Tighten the nut 1/4 to 1/2 turn. Check the tightness after one or two heat
cycles.
6850 GC
1 Carefully unwind the outlet end of the GC column until the
3 o’clock clip is reached.
2 Slide an interface column nut (part number 05988-20066) and ferrule (part
number 5062-3508) onto the outlet end of the GC column.
The tapered end of the ferrule must point towards the nut.
3 Slide the column into the GC/MSD interface until the column protrudes
into the analyzer chamber at least 5 cm.
4 Adjust the length of the column from the 3 o’clock clip to the back of the
interface column nut to be 22–28 cm. See Figure 10.
5 Hand tighten the interface nut.
6 Carefully close the oven door while observing to see that the column does
not develop sharp bends or touch the oven walls/floor. Try this procedure
several times.
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