Setting Parameters For The S/Sl Pulsed Modes - Agilent Technologies 7890 Series Advanced Operation Manual

3
Inlets

Setting parameters for the S/SL pulsed modes

54
Enter a Purge time and a Purge flow.
4
If desired, turn on Gas saver. Make certain the time is set
5
after the Purge time.
Press [Prep Run] (see
6
before manually injecting a sample (this is automatic for
Agilent ALS).
If a column in the flow path is not defined
Press [Front Inlet] or [Back Inlet].
1
Scroll to Mode: and press [Mode/Type]. Select Splitless.
2
Set the inlet temperature.
3
Enter a Purge time.
4
Set your Total flow greater than the sum of column flow
5
plus the septum purge flow—see
on page 40—to guarantee adequate column flow.
Press [Prep Run] (see
6
before manually injecting a sample.
The pulsed mode parameters are the same as the non- pulsed
parameters, but with two additional values.
Pulsed pressure The inlet pressure you want at the start of
the run. The pressure rises to this value when [Prep Run] is
pressed and remains constant until Pulse time elapses, when
it returns to Pressure.
Pulse time This is the time after the start of the run when
the inlet pressure returns to Pressure.
"Pre Run and Prep Run"
"Pre Run and Prep Run"
"Pre Run and Prep Run"
Advanced Operation Manual
on page 40)
on page 40)