Agilent Technologies 6850 Series II User Information page 42

4.
5.
Installing columns in the PTV inlet
1.
2.
3.
Table 14. Columns and Ferrules
Column id
200 µm
250 µm
320 µm
530 µm
4.
5.
Released: March 2004
If you are using an automatic injection system with 250 µm or 320 µm col-
umns, verify the installation by pushing the syringe manually into the inlet.
After the column is installed at both inlet and detector, establish a flow of
carrier gas through the inlet. Heat the oven, inlet, and detector to oper-
ating temperatures. Allow them to cool, and then retighten the fittings.
Load the SERVICE method or reset the inlet and oven temperatures to
OFF or turn the main power switch off. Let the heated zones cool to room
temperature. Also, make sure that:
• If you have entered parameters that you do not want to lose, store
them as a method
• If the detector is on, turn it off.
Install the appropriate column adapter. See
Select the appropriate GRAPHPACK™-2M ferrule. These ferrules are sized
to the column outer diameter.
GRAPHPACK ferrule hole id
0.31 mm
0.40 mm
0.45 mm
0.70 mm
Place the appropriate GRAPHPACK ferrule onto the column inlet end and
pull it at least 30 mm from the end.
With a glass knife or other fused silica cutter, remove approximately
10 mm from the column end to eliminate graphite contamination.
6850 Series II GC User Information
Installing capillary columns
"Inlet adapters" on page
Quantity Part no.
10 5182-9756
10 5182-9768
10 5182-9769
10 5182-9770
Columns and Traps
150.
page 42 of 256