iv
Restrictors for Detector Gas Control............................................................................2-51
CHAPTER 3 MAINTENANCE
CHAPTER OVERVIEW ........................................................................................................3-1
AUTOSAMPLER MAINTENANCE.........................................................................................3-2
Changing a Syringe ......................................................................................................3-2
Removing a Syringe .....................................................................................................3-3
Installing a Syringe.......................................................................................................3-4
REPLACING THE VIAL-LOCATOR MECHANISM..................................................................3-5
SYRINGE MAINTENANCE...................................................................................................3-6
Cleaning the 5-µL and 50-µL Syringe Plungers..............................................................3-6
Servicing Idle Syringes.................................................................................................3-6
INJECTOR MAINTENANCE.................................................................................................3-7
Changing Septa ............................................................................................................3-7
Changing and Repacking Packed Column Injector Liners ...............................................3-8
Changing the Hourglass Needle Guide on the Programmed On-Column (POC) Injector..3-10
CHANGING AND REPACKING CAPILLARY SPLIT/SPLITLESS (CAP) AND PROGRAMMED
SPLIT/SPLITLESS (PSS) INJECTOR LINERS....................................................................... 3-12
Removing a CAP or PSS Injector Liner .......................................................................3-12
About O-Rings ...........................................................................................................3-15
Selecting an Appropriate CAP Injector Liner ...............................................................3-16
Packing the CAP Injector Liner with Quartz Wool........................................................3-17
Packing a CAP Injector Liner for Split Operation .........................................................3-17
Packing a CAP Injector Liner for Splitless Operation....................................................3-17
CHANGING THE CHARCOAL TRAP OR REPLACING CHARCOAL ON THE SPLIT/SPLITLESS CAP
AND PSS INJECTORS........................................................................................................ 3-23
Removing a Charcoal Trap..........................................................................................3-23
Installing a New Charcoal Trap...................................................................................3-24
ECD MAINTENANCE....................................................................................................... 3-26
Baking the ECD.........................................................................................................3-27
Changing the Charcoal Traps ......................................................................................3-27
Cleaning the ECD Anode............................................................................................3-27
Wipe Testing an ECD Cell..........................................................................................3-28
FID MAINTENANCE......................................................................................................... 3-33
Replacing a FID Jet....................................................................................................3-33
Cleaning a FID Jet......................................................................................................3-36
PID MAINTENANCE......................................................................................................... 3-38
Changing a PID Lamp................................................................................................3-38
Cleaning PID Lamp Windows.....................................................................................3-39
Changing PID Lamp Window Seals and Positioning Disks ...........................................3-41
ELCD MAINTENANCE..................................................................................................... 3-42
Replacing the ElCD Reactor Tube...............................................................................3-42
Replacing the Sealing Ring .........................................................................................3-43
NPD MAINTENANCE........................................................................................................ 3-46
Changing the NPD Bead.............................................................................................3-46
Replacing an NPD Jet.................................................................................................3-53
FPD MAINTENANCE........................................................................................................ 3-56
Cleaning/Replacing an Optical Filter Assembly............................................................3-56
Cleaning/Replacing the Detector Liner ........................................................................3-58
Cleaning/Replacing the Detector Window....................................................................3-60
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