User guide

34 Advanced User Guide
2 Configuration
Except for the simplest configurations, such as a column
connected to a specific inlet and detector, we recommend that
you begin by making a sketch of how the column will be
connected.
1 Press [Config][Col 1] or [Config][Col 2], or press [Config][Aux
Col #] and enter the number of the column to be configured.
2 Scroll to the Length line, type the column length, in meters,
followed by [Enter].
3 Scroll to Diameter, type the column inside diameter in
microns, followed by [Enter].
4 Scroll to Film thickness, type the film thickness in microns,
followed by [Enter]. The column is now defined.
If you do not know the column dimensions—they are usually
supplied with the column—or if you do not wish to use the GC
calculating features, enter 0 for either Length or Diameter. The
column will be not defined.
5 Scroll to Inlet. Press [Mode/Type] to select a gas pressure
control device for this end of the column. Selections include
the installed GC inlets, and installed Aux and PCM channels.
Select the appropriate gas pressure control device and press
[Enter].
6 Scroll to Outlet. Press [Mode/Type] to select a gas pressure
control device for this end of the column. Selections include
the installed Aux and PCM channels, and detectors. When a
detector is selected, the outlet end of the column is
controlled at 0 psig for the FID, TCD, FPD, NPD, and uECD
or vacuum for the MSD.
Select the appropriate gas pressure control device and press
[Enter].
7 Scroll to Thermal zone. Press [Mode/Type] to see the available
choices. In most cases this will be GC oven, but you may have
an MSD transfer line heated by an auxiliary zone, valves in a
separately- heated valve box or other configurations.
Select the appropriate Thermal zone and press [Enter].
This completes configuration for a single capillary column.
Additional notes on column configuration
Packed columns should be configured as column not defined. To
do this, enter 0 for either column length or column diameter.