13 Detector
13.2 Hydrogen flame ionization detector (FID)
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GC-2010 Plus
13.2.3 Setting the detector gas flows
The FID detector gas consists of makeup gas, hydrogen and air. The makeup gas is inert
gas supplied to the detector to optimize FID sensitivity and prevent peak tailing. Usually, the
carrier gas is used as the makeup gas. Hydrogen gas and air are supplied to be combusted
inside the detector, creating the FID flame.
13.2.3.1 Screen description
Select [Det Gas] (PF menu) from the [DET] key main screen to display the flow screen
shown in Fig. 13.2.3.
When the start sequence is the “Start Flow” status on the [SYSTEM] key screen, the
makeup gas flow starts. Just before the ignition procedure begins, hydrogen and air
flow starts. When the stop sequence is “Stop Temp/Det” status on the [SYSTEM] key
main screen, gas flow stop.
Fig. 13.2.3 Setting the detector gas flows
Refer to “OPTIMAL FLOW”
in “13.2.3.2 Parameter list”,
and check whether the flow
rate of each detector gas is
set correctly. If not, set it to
the correct value.
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