User`s guide

Operation
100
Figure 19 Timing Tab
The name of the method that is currently loaded on the Run tab is
also displayed. The settings displayed here are from this method.
You can change the settings and create a new method or update an
existing method.
Purge Time—When the leak tube test has been completed, air is
purged from the tube prior to heating it for desorption. This is done
to reduce the risk of adsorbent or analyte oxidation during
desorption. The sample tube is purged with carrier gas for the
duration of the Purge Time. The minimum purge time is 1 minute in
increments of 0.1 until 999.9.
Trap.—Pressing the Trap button calls up a Trap Timing dialog
box. Temperature Hold Time. Specifies the length of time, during
which the trap is held at its high temperature for trap desorption. You
can enter any value from 0.0 to 999.0 minutes. Typically, a value of 1
minute is adequate. See the following figure.
NOTE: For manual pneumatics the Desorb Time is grayed out and
unavailable.