18 Maintenance and Inspection
18.9
18.
304
GC-2010 Plus
18.9Inspection and Maintenance: FID
NOTE For correct FID handling procedures, refer to “13 Detector”.
18.9.1 Inspection/maintenance cycle
When the following problems occur, inspect the FID and perform maintenance if necessary.
・ When the FID cannot be ignited
・ When peaks are not detected.
・ When noise is high
・ When the peak shape is abnormal
18.9.2 Inspection/maintenance
a) Inspection and replacement of the igniter are described.
Q Troubleshooting
Check for blown filaments.
Replace the igniter with a new one, if the filament is blown.
Q Removing and installing the igniter
Loosen the igniter mounting screw shown in Fig. 18.9.1, and pull out the igniter in the
direction indicated by arrow.
When replacing the igniter, detach the cables at the connection.
Install a new igniter by connecting the cable,inserting the igniter,and tightening the screw.
WARNING
Verify that the following items have been checked before starting FID
inspection/maintenance.
1.Stop the supply of hydrogen gas, and extinguish the hydrogen
flame.
2. Set the detector temperature to 50 °C or less.
3. Turn off the power of the FID.
4. Remove the capillary column from the FID.
Risk of burns. Do not perforem maintenance until the temperature
has dropped below 50 °C
CAUTION
When the FID is hot, do not loosen screws and nuts or move parts to
prevent binding.
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