Agilent Technologies 8890 User manual

Agilent 8890 Gas Chromatograph
Maintaining Your Gas Chromatograph (GC)

Maintaining Your GC
Notices
© Agilent Technologies, Inc. 2019
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Manual Part Number
G3540-90015
Edition
First edition, January 2019
Printed in USA
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Wilmington, DE 19808-1610 USA
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Maintaining Your GC 3
Contents
1 About Maintaining the GC
Overview of Maintenance 10
Tools and Materials Required for Maintenance 11
Preparing for Maintenance 13
Viewing Status Data 14
Finding a Replacement Part Number 16
2 Removing Covers
To Remove the Detector Top Cover 18
To Remove the Pneumatics Cover 19
To Remove the Electronics Cover 20
3 Maintaining the GC
Consumables and Parts for General GC Maintenance 24
Parts Identification 26
To Change the Hydrogen Sensor Calibration Gas Cylinder 27
4 Maintaining Capillary Columns
Consumables and Parts for Columns 30
To Install a Capillary Column Hanger 32
To Install Capillary Column Clips 33
To Condition a Capillary Column 34
To Cut a Loop from a Column 36
To Reverse a Column and Bakeout Contaminants 37
To Attach a Capillary Column Using UltiMetal Plus Flexible Metal Fittings 39
To Remove the Ferrule From a CFT Fitting 47
5 Maintaining the Split/Splitless Inlet
Consumables and Parts for the Split/Splitless Inlet 50
Exploded Parts View of the Split/Splitless Inlet 53
To Install a Capillary Column with the Split/Splitless Inlet 54
To Change the Septum on the Split/Splitless Inlet 58
To Clean the Septum Seat in the Insert Assembly of the Split/Splitless Inlet 60

4Maintaining Your GC
To Change the Liner and O-Ring on the Split/Splitless Inlet 62
To Replace the Gold Seal on the Split/Splitless Inlet 65
To Replace the Filter in the Split Vent Trap for the Split/Splitless Inlet 67
To Clean the Split/Splitless Inlet 69
To Bakeout Contaminants from the Split/Splitless Inlet 71
6 Maintaining the Purged Packed Inlet
Consumables and Parts for the Purged Packed Inlet 74
Exploded Parts View of the Purged Packed Inlet 77
To Install a Capillary Column with the Purged Packed Inlet 78
To Change the Septum on the Purged Packed Inlet 82
To Clean the Septum Seat in the Purged Packed Inlet 84
To Install an Adapter on the Purged Packed Inlet 86
To Change the O-Ring on the Purged Packed Inlet 87
To Change the Glass Liner on the Purged Packed Inlet 88
To Clean the Purged Packed Inlet 90
To Bakeout Contaminants from the Purged Packed Inlet 92
To Install a Packed Metal Column 93
To Install a Packed Column Adapter onto a Detector 95
To Install a Packed Glass Column 97
To Condition a Packed Column 99
To Install Ferrules on a Packed Metal Column 100
7 Maintaining the COC Inlet
Consumables and Parts for the Cool On-Column Inlet 102
Exploded Parts View of the Cool On-Column Inlet 105
To Install a Capillary Column with the Cool On-Column Inlet 106
To Check the Needle-to-Column Size on the COC Inlet 109
To Change a Septum on the COC Inlet 110
To Install an Insert on the COC Inlet 112
To Clean the COC Inlet 114
To Replace the 7693A Injector Needle Support Guide 116
To Replace a Needle in a Syringe 117

Maintaining Your GC 5
To Replace the Fused Silica Needle in a Syringe for the COC Inlet 118
To Bakeout Contaminants from the COC Inlet 119
8 Maintaining the MMI
Consumables and Parts for the Multimode Inlet 122
Exploded Parts View of the MMI 124
To Install the Column Nut Adapter 125
To Install a Capillary Column with the Multimode Inlet 126
To Change the Septum on the MMI 130
To Clean the Septum Seat in the Insert Assembly of the MMI 132
To Change the Liner and O-Ring on the MMI 134
To Replace the Filter in the Split Vent Trap for the MMI 137
To Clean the Multimode Inlet 139
To Bakeout Contaminants from the MMI 141
9 Maintaining the PTV Inlet
Consumables and Parts for the Programmable Temperature Vaporization Inlet 144
Exploded Parts View of the PTV Inlet 146
To Install a Capillary Column with the Programmable Temperature Vaporization
Inlet 147
To Clean the Septumless Head on the PTV Inlet 150
To Replace the Septumless Head PTFE Ferrule on the PTV Inlet 152
To Change the Septum on the PTV Inlet 154
To Clean the Septum Seat in the Septum Head Assembly of the PTV Inlet 155
To Change the Liner on the PTV Inlet 156
To Replace the Inlet Adapter for the PTV Inlet 158
To Replace the Filter in the Split Vent Trap for the PTV Inlet 160
To Bakeout Contaminants from the PTV Inlet 162
10 Maintaining the VI
Consumables and Parts for the Volatiles Interface 164
Exploded Parts View of the VI 166
To Install a Capillary Column with the Volatiles Interface 167
To Remove the VI Interface 171

6Maintaining Your GC
To Clean the VI 173
To Install the VI Interface 174
To Replace the Filter in the Split Vent Trap for the VI 175
To Bakeout Contaminants from the VI Inlet 177
11 Maintaining the FID
Consumables and Parts for the FID 180
Exploded Parts Views of the Flame Ionization Detector 182
To Install a Capillary Column in the FID 184
To Replace an FID Jet 187
To Perform Maintenance on the FID Collector Assembly 190
To Check the FID Leakage Current 197
To Check the FID Baseline 198
To Install the Optional FID PTFE Chimney Insert 199
To Bakeout the FID 200
12 Maintaining the TCD
Consumables and Parts for the Thermal Conductivity Detector 202
To Install a Capillary Column in the TCD 204
To Bakeout Contaminants from the TCD 207
13 Maintaining the NPD
Consumables and Parts for the NPD 210
Exploded Parts View of the Nitrogen-Phosphorus Detector 212
To Install a Capillary Column in the NPD 213
To Replace the NPD Bead Assembly 216
To Maintain the NPD Collector, Ceramic Insulators, and Jet 220
To Check the NPD Leakage Current 225
To Bakeout the NPD 226
14 Maintaining the ECD
Important Safety Information About the ECD 228
Consumables and Parts for the ECD 230
Exploded Parts View of the Electron Capture Detector 232

Maintaining Your GC 7
To Replace the ECD Fused Silica Indented Mixing Liner and Install the Makeup Gas
Adapter 233
To Install a Capillary Column in the ECD 236
To Bakeout the ECD 238
15 Maintaining the FPD+
Consumables and Parts for the FPD+ 242
Exploded Parts View of the Flame Photometric Detector Plus 244
To Install a Capillary Column to the FPD+ 245
To Change the FPD+ Wavelength Filter 247
To Remove the FPD+ Cover 250
To Replace the FPD+ Ignitor 251
To Install the FPD+ Cover 253
Cleaning the FPD+ Brazement 254
16 Maintaining EPC Modules
Consumables and Parts for the Aux EPC 256
Installing or Replacing Frits in the Aux EPC 258
Consumables and Parts for the PCM 260
Calibrating the PCM Interface 261
Installing or Replacing Frits in the PCM 262
17 Maintaining a Valve
Consumables and Parts for Valves 266
Exploded Parts View of GC Rotary Valves 267
To Replace a Gas Sampling Valve Loop 268
To Align a Rotary Valve Rotor 270
To Replace a Rotary Valve in the Valve Box 271
To Remove the Upper Valve Box 274
To Install the Upper Valve Box 275
ASwagelokConnections
Making Swagelok Connections 278
Using a Swagelok Tee 281

8Maintaining Your GC

Maintaining Your GC 9
1About Maintaining the GC
Overview of Maintenance 10
Tools and Materials Required for Maintenance 11
Preparing for Maintenance 13
Viewing Status Data 14
Finding a Replacement Part Number 16
This section provides an overview of the maintenance procedures included in this document. It
also lists the tools needed for routine maintenance and the information needed to safely
perform the various maintenance task.

1 About Maintaining the GC
Overview of Maintenance
10 Maintaining Your GC
Overview of Maintenance
This manual details the routine tasks needed to maintain the Agilent 8890 Gas Chromatograph
(GC). The procedures assume a basic knowledge of tool use and of GC operation. Readers are,
for example, expected to know how to:
•Safely turn devices on and off
•Load methods
•Change component temperatures, flows, and pressures
•Make typical pneumatic connections using Swagelok and other standard fittings
•Reset GC service counters
•Use the GC touchscreen
Where to find a procedure
Included in this manual are chapters on maintaining the following GC components:
•Capillary Columns
•Split/Splitless Inlet (SSL)
•Purged Packed Inlet (PPI)
•Cool On-Column Inlet (COC)
•Multimode Inlet (MMI)
•Programmable Temperature Vaporization Inlet (PTV)
•Volatiles Interface (VI)
•Flame Ionization Detector (FID)
•Thermal Conductivity Detector (TCD)
•Electron Capture Detector (ECD)
•Nitrogen-Phosphorus Detector (NPD)
•Flame Photometric Detector Plus (FPD+)
•Auxiliary Electronic Pressure Control Module (Aux EPC)
•Pneumatics Control Module (PCM)
•Valves
Each chapter includes:
•A list of the most commonly used consumables and parts for the component
•An exploded parts view of the component
•Detailed procedures for routine maintenance tasks associated with the component