Agilent Technologies 6890 Series - Page 286

Agilent Technologies 6890 Series

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274

Index

Table of Contents

Default Chapter3
- Table of Contents3
Chapter 1. The 6890 Series Gas Chromatograph13
- Manuals14
- Control Tables15
- Using Control Tables16
- Some Specifics18
- Strategy20
- Maintenance Information21
  - Fuses and Batteries21
  - Maintenance Schedule22
- General Warnings23
- Shutting down the GC25
  - For Less than One Week25
  - For more than One Week25
Chapter 2. The Keyboard and Display the Display30
- The Status Board32
- The Keyboard33
- Instant Action Keys [Start], [Stop], and [Prep Run]34
- Function Keys35
- Short-Cut Keys [Temp], [Pres], [Flow], [Det Control], [Ramp #]36
- [Info]39
- [Status]40
- Miscellaneous Keys42
- Modifier Keys48
- Storage and Automation51
- Default Parameters52
  - Procedure: Loading the Default Parameters52
Chapter 3. Flow and Pressure Control Hydrogen Shutdown55
- Column Shutdown55
- Turning Gas Flows on and off56
  - EPC-Controlled Streams56
  - Nonepc-Controlled Streams56
Part 1. Electronic Pneumatic Control (EPC)57
- Interpreting Flow and Pressure Readings57
- Configuration58
- Columns and Inlets59
- Configure the Column60
  - Procedure: Configuring a Capillary Column61
  - Additional Notes on Column Configuration62
- Configure the Carrier Gas63
  - Procedure: Configuring the Carrier Gas63
- Select a Column Mode64
- Enter the Initial Flow or Pressure or Average Linear Velocity66
  - Procedure: Setting Initial Flow or Pressure or Average Linear Velocity68
- Enter a Flow or Pressure Program (Optional)69
  - Procedure: Programming Column Pressure or Flow69
- Enter the Rest of the Inlet Parameters71
  - Procedure: Setting the Rest of the Inlet Parameters72
- Detectors74
  - Gas Configuration77
  - Makeup Gas77
- Auxiliary Channels78
  - Procedure: Changing an Auxiliary Channel Frit81
- Maintaining EPC Calibration82
Part 2. Nonepc Control84
- Inlets84
  - Septum Purge84
- Detectors85
Part 3. Measuring Flow Rates88
- Measuring Flow Rates with a Bubble Meter88
- Where to Measure Flows89
  - Adapters for Measuring Flow Rates89
  - Procedure: Measuring Gas Flows with a Bubble Meter90
- Interpreting Flow Meter Measurements91
Part 4. Flow and Pressure Problems92
- A Gas Does Not Reach the Setpoint Pressure or Flow92
- A Gas Exceeds the Setpoint Pressure or Flow93
- The Inlet Pressure or Flow Fluctuates93
- The Measured Flow Is Not Equal to the Displayed Flow94
Chapter 4. The Column Oven95
- Oven Capabilities96
- Oven Safety97
- Configuring the Oven98
- Procedure: Setting up an Isothermal Run99
- Making a Temperature-Programmed Run100
  - Oven Temperature Programming Setpoints101
  - Oven Ramp Rates102
- Procedure: Setting up a Single-Ramp Program103
- Procedure: Setting up a Multiple-Ramp Program104
- Fast Chromatography105
  - Fast-Heating Oven105
  - Configuring the Oven105
- Using the Oven Insert for Fast Chromatography106
  - To Install the Oven Insert106
  - Removing the Insert108
- Cryogenic Operation109
  - Cryogenic Control Setpoints109
Chapter 5. Columns and Traps111
Part 1. Capillary Columns112
- Column Hanger112
- Procedure: Preparing Capillary Columns113
- Procedure: Installing Capillary Columns in the Split/Splitless Inlet115
- Procedure: Installing Capillary Columns in the Cool On-Column Inlet117
- Procedure: Installing Capillary Columns in the Purged Packed Inlet118
- Procedure: Installing Capillary Columns in the PTV Inlet and Volatiles Interface121
- Procedure: Installing Capillary Columns in NPD and FID Detectors121
- Procedure: Installing Capillary Columns in the TCD125
- Procedure: Installing Capillary Columns in the ECD and Μ-ECD126
- Procedure: Installing Capillary Columns in the FPD130
- Ferrules for Capillary Columns133
  - Graphite and Graphitized-Vespel Ferrules133
  - Vespel Ferrules133
Part 2. Packed Metal Columns134
- Overview: Installing Packed Metal Columns134
- Fittings135
- Preparing Packed Metal Columns136
- Procedure: Making a Spacer from Teflon Tubing137
- Procedure: Installing Ferrules on a Metal Column139
- Procedure: Installing an Adapter in a Detector Fitting140
- Procedure: Installing Packed Metal Columns141
- Ferrules for Packed Metal Columns142
Part 3. Packed Glass Columns143
- Overview: Installing Glass Packed Columns143
- Procedure: Installing Glass Packed Columns145
- Ferrules and O-Rings for Glass Packed Columns147
Part 4. Conditioning Columns148
- Procedure: Preliminary Column Conditioning Steps149
- Procedure: Conditioning a Capillary Column150
- Procedure: Conditioning Packed Columns151
Part 5. Conditioning Chemical Traps152
Part 6. Calibrating Your Capillary Column (Optional)153
- Calibration Modes153
- Column Calibration Procedures154
Chapter 6. Signal Handling161
- Using the Signal Control Tables162
  - Signal Type162
  - Value162
- Analog Output Settings-Zero, Range, and Attenuation166
- Digital Data Handling169
- Column Compensation172
- Test Plot176
Chapter 7. Instrument Automation179
- Executing Events During the Run180
- Run Time Programming180
- Using Run Time Events181
  - Procedure: Programming Run Time Events182
- The Run Table183
- Clock Time Programming185
- Using Clock Time Events186
Chapter 8. Analytical Methods191
- What Is a Method192
- What Can You Do with It192
- Creating a Method193
- Method Mismatch197
  - User-Entered Configuration Changes197
  - Hardware Configuration Changes197
- Procedure: Modifying a Previously Stored Method198
- Procedure: Deleting a Stored Method199
- Method Listings199
Chapter 9. Valve Control201
- The Valve Box202
- Valve Control204
  - The Valve Drivers204
- The Internal Valve Drivers204
- The External Valve Drivers205
- Valve Configurations206
  - Procedure: Configuring a Valve207
- Valve Control208
  - Procedure: Controlling Valves from the Keyboard208
  - From the Run or Clock Time Tables208
- Valve Control Examples209
Chapter 10. The Automatic Liquid Sampler213
Part 1. the 7673 als214
- Injector Control Table216
  - Procedure: Editing Injector Setpoints217
- Configuring the Injector217
  - Procedure: Configuring the Injector218
- Sample Tray Setpoints218
  - Procedure: Editing the Sample Tray Setpoints218
  - Procedure: Configuring the Bar Code Reader219
- Storing Injector Setpoints220
Part 2. the 7683 als221
- Injector Control Table223
  - Procedure: Editing Injector Setpoints224
- Configuring the Injector225
  - Procedure: Configuring the Injector226
- Sample Tray Setpoints226
  - Procedure: Editing the Sample Tray Setpoints226
  - Procedure: Configuring the Bar Code Reader227
- Storing Injector Setpoints227
Chapter 11. Analytical Sequences229
- What Is a Sequence230
- What Can You Do with It230
- Defining a Sequence232
- Procedure: Creating a Sequence234
- Procedure: Storing a Sequence237
- Procedure: Loading a Previously Stored Sequence238
- Procedure: Modifying a Previously Stored Sequence239
- Procedure: Deleting a Sequence240
- Sequence Control240
- Special Considerations When Using an Integrator244
Chapter 12. Messages245
- Not Ready246
- Method Mismatches246
- Warning247
- Shutdown247
- Faults247
- Bad Mainboard and Fatal Error Messages247
Part 1. Not Ready Messages249
- Temperature Zone Not Ready252
- Pressure And/Or Flow Not Ready253
- Detector Not Ready253
- Valve Not Ready255
- Other Not Ready Messages256
Part 2. Shutdown Messages258
Part 3. Warning Messages264
Part 4. Fault Messages268

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