Thermo Scientific FOCUS GC, Instruction Manual

Page: 108 / 356

Chapter 5
Split/Splitless Injector (S/SL)
S/SL Inlet Parameters
108 Instruction Manual
Table 5-3shows the parameters of the S/SL injector menu.
Split Mode Splitless Mode Surge Splitless Mode
INLET (S/SL) INLET (S/SL) INLET (S/SL)
Temp 200.. 200
Mode Split
Total flow (150.0)
Split flow 100 100
Split ratio 1000.0
Temp 200..200
Mode Splitless
Total flow (150.0)
Split flow 100 100
Splitless time 1.00
Const sept purge Off
Stop purge for 1.00
Temp 200..200
Mode Surge Splitless
Total flow (150.0)
Split flow 100 100
Splitless time 1.00
Surge pressure 100
Surge duration 1.00
Const sept purge Off
Stop purge for 1.00
Table 5-3. Inlet Parameters Menu
Menu Range Comments
INLET
This line is the menu title bar.
Temp
50–375
°
C This line shows the base injector temperature.
Mode:
Split, Splitless,
Surge Splitless This line displays the operating mode selected.
Total flow
Not editable This line shows the total gas flow consumption, which
is the sum of the column flow, split flow (or gas saver
flow), and septum purge flow.
Split flow
On - Off
10–500 mL/min for He
10-500 mL/min for H
2
10-450 mL/min for N
2
in steps of 1 mL/min
This line shows the split flow.
Set
ON to display the actual and setpoint values. Press
OFF
to close the split valve and to turn off the split
flow.
Split
ratio
1-1000
in steps of 1 This line displays the actual value of the split ratio.
This value is the ratio between the split flow and the
column flow.