12 Injection Port
12.1 Packed Column Injection Port (Dual INJ)
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GC-2014
12.1.2 Setting the Flow Rate
12.1.2.1 Screen description
Press the [FLOW] key to display the screen shown in Fig. 12.1.3 and to set parameters
for the dual AFC (Advanced Flow Controller) that controls carrier gas flow rate.
1. When the control mode is set to “Single L” or “Single R,” parameters of only specified side are
displayed.
2. Inlet pressures can be monitored but cannot be set.
12.1.2.2 Parameter list
CONTROL MODE
Selection: Dual/Single L/Single R, Default: Dual
When the control mode is set to “Dual,” flow controllers on both left and right inlets are
controlled. When it is set to “Single L” or “Single R,” a flow controller on either left or
right inlet is controlled.
COLUMN FLOW RATE
Range: 0.0−100.0 ml/min, Default 50.0 ml/min
Set the flow rate of gas to be supplied to columns connected to left and right inlets. A
mass flow controller is used to control the column flow rate so gas is supplied at a
specified flow rate even when the column resistance changes due to a column
replacement or the column temperature changes.
CARRIER GAS TYPE
Selection: He/N2/H2/Ar, Default: He
Specify the type of carrier gas supplied to the AFC. This parameter is used for the
measurement/control of the flow rate. If this parameter is not set correctly, calculations
may not be performed correctly.
Fig. 12.1.3 FLOW key main screen
NOTE
Flow rate of the column
connected to the left inlet
Flow rate of the column
connected to the right inlet
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