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13 Detector
13.1 Hydrogen Flame Ionization Detector (FID)
163
GC-2014
If the detector is set to Off when setting GC starting procedures, the setting for all detectors specified in
a respective flow line automatically becomes Off.
Always set to On when only FID is used.
To set to Off while using detectors other than FID at the same time, set the detector to
On on the [DET] key screen and then operate the ignition.
1. The messages “ignition finished” and “ignition finished (retried)” mean that ignition has been carried
out properly.
2. The message “DET#1, ignition failed” or other similar messages mean that ignition has failed. In
this case, the unit’s conditions are as follows.
・
Hydrogen and air continue to be supplied when the manual flow controller is used.
・
When the optional solenoid valve to shut off supply gas is installed, hydrogen and air are shut off by
the valve.
・
When the APC is used, APC’s valve is closed to shut off hydrogen and air supply.
3. Potential causes of ignition failure are listed below. Remove the cause then ignite the FID.
・
Column is not connected.
・
Detector gas is not supplied.
・
Detector gas flow rate is not proper.
・
Unused detector (FID or FPD) is set to “On.”
・
FID jet is clogged.
→
Clean or replace the FID jet.
・
Igniter filament is broken.
→
Replace the igniter.
4. When the optional solenoid valve to shut off supply gas is installed or ignition is carried out
immediately after opening the gas cylinder’s main valve, the message “(retried)” or “ignition failed”
may be displayed because hydrogen in the piping is not completely replaced.
13.1.5.3
Extinguishing the FID
Q
Manual flow controller
Extinguish the FID flame by closing the main valve of the hydrogen cylinder to shut off
gas supply.
Q
When the manual flow controller and the solenoid valve to shut off supply gas are installed
Press [Stop GC] (PF menu) on the [SYSTEM] key main screen. The solenoid valves
close when the detector control ends to shut off gas supply, extinguishing the FID flame.
Q
APC
Press [Stop GC] (PF menu) on the [SYSTEM] key main screen. APC control ends when
the detector control ends to shut off gas supply, extinguishing the FID flame.
To extinguish the flame before the GC stops, press the [DET] key, select [DET Gas] (PF
menu), and set the control of hydrogen and air to Off on the screen. Gas supply is shut
off, extinguishing the FID flame.
START TEMP/DET
Yes
DETECTOR
Off
AUTO IGNITE
Off
NOTE
NOTE
Содержание GC-2014
Страница 4: ...This page is intentionally left blank ...
Страница 12: ...Contents viii GC 2014 This page is intentionally left blank ...
Страница 28: ...1 Installation 1 3 Gas Supply Plumbing 16 GC 2014 This page is intentionally left blank ...
Страница 42: ...2 Before Use 2 6 Connecting the Relay Terminals 30 GC 2014 This page is intentionally left blank ...
Страница 78: ...5 Analysis 5 2 Notes for Analysis 66 GC 2014 This page is intentionally left blank ...
Страница 90: ...6 Basic Key Operation 6 4 Getting Help 78 GC 2014 This page is intentionally left blank ...
Страница 130: ...11 Creating an Oven Temperature Program 11 2 Temperature Programs 118 GC 2014 This page is intentionally left blank ...
Страница 164: ...12 Injection Port 12 5 Setting the Flow Rate Parameters 152 GC 2014 This page is intentionally left blank ...
Страница 282: ...16 Special Functions 16 10 ROM Version No 270 GC 2014 This page is intentionally left blank ...
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