Thermo Scientific FOCUS GC Instruction Manual page 11

Parts Referenced ....................................................................................................... 246
Analytical Conditions Required for Splitless Injection ............................................ 248
Chapter 15
Maintenance and Troubleshooting 257
Maintenance ........................................................................................................................... 259
How To Perform Maintenance.................................................................................. 259
Suggested Maintenance Schedule............................................................................. 259
Maintenance Schedule Table .................................................................................... 260
Instrument Cleaning.................................................................................................. 261
Maintaining a SSL Injector .................................................................................................... 262
When Replacing the Standard Septum...................................................................... 262
When Cleaning or Replacing the Liner..................................................................... 262
If the Glass Liner Breaks Inside the Injector ............................................................ 263
Related Operating Sequences.................................................................................... 263
Maintaining a PPKD Injector................................................................................................. 276
When replacing the septum....................................................................................... 276
When replacing the liner ........................................................................................... 276
Maintaining a FID .................................................................................................................. 282
FID Troubleshooting.............................................................................................................. 295
Maintaining a TCD ................................................................................................................ 298
TCD Troubleshooting ............................................................................................................ 300
Sensitivity.................................................................................................................. 300
Baseline drift ............................................................................................................. 300
Negative peaks .......................................................................................................... 300
Troubleshooting the TCD ......................................................................................... 301
Maintaning Gas Sampling Valve ........................................................................................... 304
Analytical Troubleshooting.................................................................................................... 306
Instrument Troubleshooting...................................................................................... 307
Error Messages....................................................................................................................... 307
Guide to Solve Analytical Problems ...................................................................................... 309
Instruction Manual
Septa............................................................................................................. 259
Ferrules and Seals ........................................................................................ 260
Traps ............................................................................................................ 260
Detector Unit................................................................................................ 260
Change in Sensitivity ................................................................................... 295
Gases ............................................................................................................ 295
Flame Ignition.............................................................................................. 296
Contents
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