Varian 450-GC, User Manual

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Table of Contents Table of Contents
Page: Page: XVIII XVIII User User Manual Manual 450-GC 450-GC Varian, Varian, Inc. Inc.
Two trap sizes Two trap sizes available available .... ................................................................................................... ...............................................................................................253 253
Using the SPT.... Using the SPT................................................................................................................... ...............................................................................................................253 253
Trapping Methodology.... Trapping Methodology.................................................................................................. ..............................................................................................253 253
Trap Trapping Med ping Media ia .... ............................................................................................................ ........................................................................................................253 253
Trap Trap Dimensions Dimensions .... .......................................................................................................... ......................................................................................................254 254
Trap Temp Trap Temperatu erature re .... ........................................................................................................ ....................................................................................................254 254
Trapping and Desorption.... Trapping and Desorption.............................................................................................. ..........................................................................................254 254
Electrical Electrical System System .... .............................................................................................................. ..........................................................................................................255 255
Circuit Circuit breaker breaker .... .............................................................................................................. ..........................................................................................................256 256
LCO LCO
2 2
Option.... Option...................................................................................................................... ..................................................................................................................257 257
Syste System m Desc Descripti ription on .... ...................................................................................................... ..................................................................................................257 257
Theory Theory of O of Operation peration .... ..................................................................................................... .................................................................................................258 258
Characteristics of LCO Characteristics of LCO
2 2
as a Coolant.... as a Coolant........................................................................... .......................................................................258 258
Inadequa Inadequate Coo te Cooling ling .... ...................................................................................................... ..................................................................................................258 258
Tran Transfer Line sfer Line .... ................................................................................................................ ............................................................................................................259 259
Recommen Recommended Supply Conditions ded Supply Conditions.... ............................................................................... ...........................................................................259 259
LN LN
2 2
Option .... Option ........................................................................................................................ ....................................................................................................................260 260
Description.... Description.................................................................................................................... ................................................................................................................260 260
Recommen Recommended Supply Conditions ded Supply Conditions.... ............................................................................... ...........................................................................261 261
Recommend Recommended temp ed temperature ran erature ranges ges .... ............................................................................ ........................................................................261 261
Configuring the SPT .... Configuring the SPT ......................................................................................................... .....................................................................................................262 262
Building an SPT metho Building an SPT method d .... ................................................................................................... ...............................................................................................263 263
Replacing the Trap Assembly.... Replacing the Trap Assembly........................................................................................... .......................................................................................264 264
SPT System SPT System Compon Components ents .... ................................................................................................ ............................................................................................265 265
Remove the SPT Cover.... Remove the SPT Cover.................................................................................................... ................................................................................................266 266
Detach Trap Assembly .... Detach Trap Assembly ..................................................................................................... .................................................................................................267 267
Remove Cryo No Remove Cryo Nozzle Assembly zzle Assembly .... ....................................................................................... ...................................................................................268 268
Installing the Trap Assembly .... Installing the Trap Assembly ............................................................................................ ........................................................................................269 269
Trap Conditioning .... Trap Conditioning ............................................................................................................. .........................................................................................................273 273
Replaceme Replacement SPT nt SPT traps.... traps.................................................................................................... ................................................................................................274 274
SPT replacement parts.... SPT replacement parts..................................................................................................... .................................................................................................275 275
Trouble Troubleshooting.... shooting.... ............................................................................................................ ............................................................................................................276 276
DETE DETECTOR CTORS S .... ............................................................................................................................ ........................................................................................................................279 279
II
NTRODUCTION NTRODUCTION
.... ........................................................................................................................ ....................................................................................................................279 279
A A
NALOG NALOG
O O
UTPUT UTPUT
.... .................................................................................................................... ................................................................................................................280 280
FLAME IONIZATIO FLAME IONIZATION DETECTOR (FID) N DETECTOR (FID).... .................................................................................. ..............................................................................283 283
Initi Initial Set-Up al Set-Up .... ..................................................................................................................... .................................................................................................................284 284
Operatio Operation n .... .......................................................................................................................... ......................................................................................................................285 285
FID auto-Ignite flow diagram .... FID auto-Ignite flow diagram ............................................................................................ ........................................................................................287 287
Installation Installation/Disassembly /Disassembly .... ................................................................................................... ...............................................................................................288 288
Exploded View.... Exploded View.............................................................................................................. ..........................................................................................................288 288
Disassemble Disassemble the FID the FID .... .................................................................................................... ................................................................................................289 289
Reassemble the FID.... Reassemble the FID..................................................................................................... .................................................................................................290 290
M M
AINTENANCE AINTENANCE
.... ......................................................................................................................... .....................................................................................................................292 292
Clean the Flame Tip and Internal Parts.... Clean the Flame Tip and Internal Parts.... ........................................................................ ........................................................................292 292
Replace the Flame-Tip Ferrule.... Replace the Flame-Tip Ferrule......................................................................................... .....................................................................................293 293
FID Test Chromatogr FID Test Chromatogram am.... ................................................................................................... ...............................................................................................293 293