Maintaining the uECD 13
Maintaining Your GC 249
10
Place a new 1/4- inch Swagelok nut and ferrule onto the
makeup gas adapter.
11 Slowly install the adapter straight into the detector
fitting. Jiggle the adapter, if necessary, to make sure it is
seated all the way into the detector fitting. Be careful not
to break the column end.
12 Tighten the nut finger- tight and then use a 9/16- inch
wrench to tighten until snug.
If the adapter is properly installed, the distance between
the 1/4- inch nut and the bottom of the adapter will be
19 ± 1 mm. If the distance is 22 to 23 mm, install the
adapter into the detector fitting.
Indentation
Fused silica indented
mixing liner
Cap
Capillary column
makeup gas
adapter
Detector fitting
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