User guide

244 Advanced User Guide
8 Inlets
When is Start Run?
Both the inlet and oven temperature programs begin at Start
Run. All times—such as Purge time—are measured from Start
Run. When does Start Run occur?
• If the sample is injected manually, Start Run occurs when the
user presses the [Start] key.
• If a single injection per run is made using an autosampler,
Start Run occurs when the syringe carrier moves down to
make the injection.
• If multiple injections per run are made using an autosampler,
Start Run occurs when the syringe carrier moves down to
make the first injection of the set. There are no Start Run
signals for the rest of the injections in the set.
These additional injections take time. The inlet and oven
temperature programs, mainly the Initial time values, must be
adjusted to allow for this. So must the various time values that
Time Oven temperature Inlet temperature Inlet pressure Split vent flow
Between runs
Prep Run
Start Run
Vent end time
Purge time
Saver time
Rate 1
Initial time
Final temperature 1
Final time 1
Rate 1
Final temperature 1
Final time 1
Other rates,
temperatures,
and times, if
desired
Initial time
Other rates,
temperatures,
and times, if
desired
Saver or
Purge flow
Vent flow
Inlet is
pressure
controlled
Purge flow
Saver flow,
if on
Controlled by column
flow or pressure setpoint
or program
Vent pressure
Controlled by
column flow or
pressure setpoint
or program