100 Before Servicing the Instrument - UMass Amherst the tri-column assembly.....5 Replacing the pre-column assembly.....6 6 of 24 Jun 2001 Contents Contents Agilent 6890 Gas Chromatograph

Contents

100 Before Servicing the Instrument

110 Safety

Cautions .......................................................................................................1Printed circuit boards .........................................................................1Voltage carrying components ............................................................1Columns................................................................................................1TCD Detector.......................................................................................1

Warnings.......................................................................................................2Heated components ............................................................................2Voltage carrying components ............................................................2Insulation..............................................................................................3Gases.....................................................................................................3

120 Tools Required

Tools required..............................................................................................1Basic......................................................................................................1Specialized ...........................................................................................2

130 Calibration Notes

Calibrating the 6890 GC..............................................................................1Calibration options .............................................................................1Factory calibrations ............................................................................2

200 Inlets

210 Split/Splitless Inlet

Theory of operation ....................................................................................1EPC inlet ......................................................................................................2

Split mode operation ..........................................................................2Pulsed split mode ................................................................................2Splitless mode......................................................................................3Pulsed splitless mode .........................................................................4Gas saver mode ...................................................................................4

Jun 2001 1 of 24Contents

Agilent 6890 Gas Chromatograph Service Manual

Contents

Manually controlled inlet ........................................................................... 5Split mode ............................................................................................ 5Splitless mode ..................................................................................... 6

Replacement procedures ........................................................................... 8Removing the inlet .............................................................................. 8Top insert assembly replacement ..................................................... 9Heater/sensor assembly replacement ............................................ 11Reinstalling the inlet ......................................................................... 11Replacing the split vent trap............................................................ 13Replacing the split vent trap filter cartridge.................................. 15Replacing the inlet EPC flow manifold .......................................... 17Replacing the supply fitting on a Type 1 flow manifold............... 18

Leak testing—EPC and manual inlets.................................................... 19Preparation ........................................................................................ 19Performing the leak test—EPC inlets ............................................ 21Performing the leak test—manual inlets ....................................... 24

Leak testing the EPC module only.......................................................... 26Forward pressure valve leaks ......................................................... 27Locating leaks on the flow manifold .............................................. 27Correcting leaks ................................................................................ 29Potential leak points ......................................................................... 30

220 Purged/Packed Inlet

Theory of operation.................................................................................... 1EPC inlet .............................................................................................. 1Manually controlled inlet ................................................................... 3

Replacement procedures ........................................................................... 4Replacing the inlet .............................................................................. 4Replacing an EPC flow manifold ...................................................... 8Replacing the supply fitting on a Type 1 EPC manifold................. 9

2 of 24 Jun 2001Contents


Contents

Leak testing—EPC and manual inlets ....................................................10Preparation ........................................................................................10Performing the leak test—EPC inlets.............................................12Performing the leak test—manual inlets........................................14Leak testing the EPC module only ..................................................15Forward pressure valve leaks..........................................................16Locating leaks on the flow manifold...............................................16Correcting leaks ................................................................................18Potential leak points .........................................................................19

230 Cool On-Column Inlet

Theory of operation ....................................................................................1EPC inlet...............................................................................................2Manually controlled inlet ...................................................................3

Replacement procedures ...........................................................................4Replacing the inlet ..............................................................................4Replacing the heater/sensor assembly .............................................7Replacing the inlet EPC flow manifold ............................................8Replacing the supply fitting on a Type 1 EPC flow manifold ........9

Leak testing EPC and manual inlets .......................................................10Preparation ........................................................................................10Performing the leak test—EPC inlets.............................................12Performing the leak test—manual inlets........................................14Leak testing the EPC module only ..................................................15Forward pressure valve leaks..........................................................15Locating leaks....................................................................................16Correcting leaks ................................................................................18Potential leak points .........................................................................19

240 Programmed Temperature Vaporization Inlet (PTV)

Theory of operation ....................................................................................1Operating modes .................................................................................1Sampling heads....................................................................................2



Contents

Split modes .................................................................................................. 3Septum head installed ........................................................................ 3Septumless head installed.................................................................. 4Pulsed split modes .............................................................................. 5

Splitless modes............................................................................................ 6Pulsed splitless mode ......................................................................... 8

Solvent vent mode ...................................................................................... 9Stage 1: Sample and vent ................................................................... 9Stage 2: Sample transfer................................................................... 11Stage 3: Purge and cleanup.............................................................. 12

Replacement procedures ......................................................................... 13Replacing the PTV inlet, pneumatics, and manifold..................... 13Replacing the PTV with cooling assembly..................................... 16Replacing the CO2 or LN2 inlet cryo assembly.............................. 18Replacing the PTV manifold assembly........................................... 19Removing both the manifold and plumbing assemblies .............. 22Replacing the plumbing assemblies ............................................... 23Replacing a gang fitting restrictor or O-ring.................................. 25Replacing the PTV thermocouple PCB .......................................... 25Replacing the filter............................................................................ 26Replacing the inlet adapter .............................................................. 27Installing the column ........................................................................ 28Removing the septumless head....................................................... 29Cleaning the septumless head ......................................................... 30Replacing the Teflon ferrule............................................................ 32Removing/replacing the septum head ............................................ 33Replacing the septum ....................................................................... 35Replacing the liner ............................................................................ 35

Diagnostics ................................................................................................ 38Shutdown behavior........................................................................... 38

Leak testing................................................................................................ 39Preparation ........................................................................................ 39Performing the leak test................................................................... 40



Contents

Leak testing the PTV module only ..........................................................42Forward pressure valve leaks..........................................................43Locating leaks on the flow manifold...............................................43Correcting leaks ................................................................................45Potential leak points .........................................................................45

250 Volatiles Interface

Theory of operation ....................................................................................1Split mode ............................................................................................1 Splitless mode.....................................................................................2Direct mode .........................................................................................4Gas saver ..............................................................................................7

Replacement procedures ...........................................................................8Replacing or cleaning the interface ..................................................8Replacing the heater/sensor assembly ...........................................11Replacing the EPC manifold............................................................14Calibrating your interface ................................................................18Replacing the filter............................................................................19Replacing or cleaning restrictors ....................................................20Replacing the gang fitting.................................................................21

Leak testing the volatiles interface .........................................................22Leak checking....................................................................................22Preparing the interface for a leak test ............................................25

Leak testing the EPC module only..........................................................26Forward pressure valve leaks..........................................................27Locating leaks on the flow manifold...............................................27Correcting leaks ................................................................................29Potential leak areas...........................................................................30

260 Solvent Vapor Exit Accessory

Theory of operation ....................................................................................1Replacement procedures ...........................................................................2

Replacing the valve/fitting assembly ................................................2Replacing the bleed restrictor column .............................................4Replacing the tri-column assembly...................................................5Replacing the pre-column assembly .................................................6



Contents

Leak testing.................................................................................................. 7Potential leak points ........................................................................... 7Leak testing the tri-column assembly............................................... 7Leak testing the SVE assembly.......................................................... 9

270 Pneumatics Control Module

Theory of operation.................................................................................... 1Replacement procedures ........................................................................... 2

Replacing the PCM.............................................................................. 2Replacing the PCM gang weldment .................................................. 4Calibrating the PCM interface ........................................................... 5

Leak testing the PCM.................................................................................. 7Forward pressure valve leaks ........................................................... 8Locating leaks on the flow manifold ................................................ 8Correcting leaks ................................................................................ 10Potential leak areas .......................................................................... 10

300 Detectors

310 Flame Ionization Detector (FID)

Theory of operation.................................................................................... 1EPC detector ....................................................................................... 1Manually controlled detector ............................................................ 2

Replacement procedures ........................................................................... 4Replacing the entire detector ............................................................ 4Replacing the detector weldment ..................................................... 8Replacing the collector assembly ..................................................... 9Replacing the FID jet ........................................................................ 11Removing the electrometer ............................................................. 13Removing a flow manifold ............................................................... 14Installing a manifold ......................................................................... 16Removing the FID interface board ................................................. 20

Diagnostics ................................................................................................ 22FID ignition problems ...................................................................... 22



Contents

Cleaning an FID jet and collector ...........................................................23Cleaning the collector.......................................................................23Cleaning the jet..................................................................................23

320 Nitrogen Phosphorus Detector (NPD)

Theory of operation ....................................................................................1EPC detector........................................................................................1Manually controlled detector ............................................................3

Recommended settings ..............................................................................4Equilibration time ...............................................................................4Turning hydrogen off during a solvent peak....................................4Turning hydrogen off between runs .................................................4Bead voltage.........................................................................................4Extending the life of the bead ...........................................................4Temperature programming ................................................................5Jets and collectors ..............................................................................5

Correcting NPD hardware problems ........................................................7Replacement procedures .........................................................................10

Software .............................................................................................10Replacing the entire detector ..........................................................10Replacing the active element (bead) ..............................................13Removing the collector assembly ...................................................16Replacing the jet................................................................................18Removing the electrometer..............................................................19Removing an EPC flow manifold ....................................................20Installing a Type 2 manifold.............................................................22Replacing the detector interface board..........................................28

Cleaning the NPD jet and collector ........................................................30Cleaning the collector.......................................................................30Cleaning the jet..................................................................................31



Contents

330 Thermal Conductivity Detector (TCD)

Theory of operation.................................................................................... 1Delta PRT ............................................................................................. 3Error messages.................................................................................... 4EPC detector ....................................................................................... 5Manually controlled detector ............................................................ 5

Replacement procedures ........................................................................... 7Replacing the entire detector ............................................................ 7Replacing the detector cell .............................................................. 10Removing an EPC flow manifold .................................................... 13Installing a Type 2 manifold ............................................................ 15Replacing the detector interface card ............................................ 21

Cleaning the Thermal Conductivity Detector ....................................... 23

340 Electron Capture Detector (ECD)

Theory of operation.................................................................................... 1EPC detector ....................................................................................... 2Manually controlled detector ............................................................ 2

Replacement procedures ........................................................................... 4Replacing the entire detector/detector cell ..................................... 4Replacing the heater/sensor assembly ............................................. 8Replacing the makeup gas adapter................................................. 10Removing the EPC flow manifold................................................... 11Removing the signal board .............................................................. 14Replacing the detector interface card ............................................ 16

Diagnostics ................................................................................................ 17Frequency test ................................................................................... 17Leak test ............................................................................................. 18

Troubleshooting contamination problems ............................................ 20Ensure clean gas supplies ................................................................ 20Isolate problem to carrier or makeup gas supplies ...................... 20Evaluate the makeup side................................................................ 21Evaluate the carrier side .................................................................. 22

Maintaining an ECD detector .................................................................. 23ECD bakeout ..................................................................................... 23Performing a radioactivity leak test (wipe test) ........................... 24



Contents

341 Micro-cell Electron Capture Detector (µ-ECD)

Theory of operation ....................................................................................1EPC detector........................................................................................2

Replacement procedures ...........................................................................3Replacing the entire detector/detector cell .....................................3Replacing the heater/sensor assembly .............................................6Replacing the makeup gas adapter ...................................................9Removing an EPC flow manifold ....................................................11Installing a Type 2 manifold.............................................................13Removing the signal board...............................................................18Replacing the detector interface card ............................................20

Diagnostics.................................................................................................22Frequency test ...................................................................................22Leak test .............................................................................................23

Maintaining a µ-ECD detector .................................................................25µ-ECD bakeout (thermal cleaning) .................................................25Performing a radioactivity leak test (wipe test)............................26

350 Flame Photometric Detector (FPD)

Theory of operation ....................................................................................1Single wavelength FPD.......................................................................2Dual wavelength FPD .........................................................................3Operating conditions ..........................................................................3

Replacement procedures ...........................................................................4Replacing the entire detector ............................................................4Column installation.............................................................................6Cleaning/replacing windows, filters, and seals ...............................8Cleaning/replacing the jet ................................................................12Replacing the transfer line fused silica liner .................................15Replacing the photomultiplier tube ................................................18Replacing the heater/sensor assemblies ........................................20Replacing the ignitor glow plug.......................................................22Removing an FPD flow manifold ....................................................24Installing a Type 2 manifold.............................................................25



Contents

Diagnostics ................................................................................................ 32Quenching effects ............................................................................. 32PMT saturation.................................................................................. 32Detector temperature considerations ............................................ 32Flame ignition problems .................................................................. 33

Leak testing................................................................................................ 35Potential leaks areas......................................................................... 35

360 Auxiliary EPC

Theory of operation.................................................................................... 1External flow restrictor (Type 2 manifold) ..................................... 1

Replacement procedures ........................................................................... 4Removing the auxiliary manifold (type 1 or type 2)....................... 4Installing a type 2 manifold................................................................ 6Changing an auxiliary channel frit.................................................. 14

400 Mainframe

410 Covers and Fans

Plastic covers .............................................................................................. 1Metal covers ................................................................................................ 2Removing the electronics cover................................................................ 3Removing the detector cover .................................................................... 4Replacing the detector top cover.............................................................. 6Removing the pneumatics top cover........................................................ 8Removing the pneumatics RFI shielding ................................................. 8Removing the left side cover ..................................................................... 9Removing the right side cover................................................................. 10Removing the ALS tray bracket .............................................................. 11Removing the inlet carrier cover ............................................................ 12Removing the inlet carrier ....................................................................... 13Removing the rear covers ........................................................................ 14

Removing the top rear cover ........................................................... 14Removing the bottom rear cover .................................................... 15

Removing the injection port fan cover................................................... 16



Contents

Removing the injection port fan..............................................................16Removing the keyboard ...........................................................................17Removing the pneumatics area fan.........................................................18

Chassis mounted fan.........................................................................18Bracket mounted fan ........................................................................19

420 Oven and Temperature Control

Heated zones................................................................................................1Oven ramp rates ..................................................................................1Configuring the GC for an MSD.........................................................2

Oven temperature troubleshooting...........................................................3Testing resistance of the heater coil.........................................................4Cryo valve installation/replacement .........................................................5

Installing a new cryo valve.................................................................5Replacing an existing cryo valve .......................................................7

Replacing the oven shroud assembly .....................................................10Replacing the oven sensor .......................................................................13Replacing the oven fan .............................................................................14Replacing the oven fan motor .................................................................15Replacing the oven flap motor ................................................................17Converting the oven type .........................................................................19

Configuring the oven ........................................................................19

430 Power/Electronics Replacement

Replacing the main board ..........................................................................1Installing an MIO card (6890A and 6890 Plus) .......................................7Replacing ROMs on the main board (6890A and 6890 Plus) ...............11

Removing a ROM...............................................................................11Inserting a ROM.................................................................................12

Replacing the battery................................................................................13Replacing the pneumatics board.............................................................14

Replacing the PCB bracket ..............................................................15Replacing the transformer—GC serial number < 10225 ......................17Replacing the transformer—GC serial number ≥ 10225 ......................19Replacing the ALS Interface Board.........................................................23



Contents

500 Site Preparation

510 Environmental

Temperature and humidity ranges............................................................ 1Ventilation requirements............................................................................ 1

Venting oven exhaust ......................................................................... 1Venting toxic or noxious gases ......................................................... 2

Benchtop space requirements................................................................... 2

520 Gases

Gas requirements ........................................................................................ 1Gases for packed columns................................................................. 1Gases for capillary columns .............................................................. 2Gas purity............................................................................................. 4

The gas plumbing........................................................................................ 5Supply tubing for carrier and detector gases .................................. 6Two-stage pressure regulators .......................................................... 7Pressure regulator-gas supply tubing connections......................... 7Traps..................................................................................................... 8

Cryogenic cooling requirements ............................................................... 9Choosing a coolant ............................................................................. 9Using carbon dioxide........................................................................ 10Using liquid nitrogen ........................................................................ 12

Supplying valve actuator air .................................................................... 13

530 Power

Grounding .................................................................................................... 1Line voltage.......................................................................................... 1USA fast heating oven ........................................................................ 2Canadian installation.......................................................................... 3



Contents

540 Instrument Specifications

Physical specifications ...............................................................................1Dimensions and average weight........................................................1Laboratory environmental conditions ..............................................1Safety certifications ............................................................................1Data communications.........................................................................1Heated zones........................................................................................1

Column oven................................................................................................2Inlets .............................................................................................................3Detectors ......................................................................................................4

FID ........................................................................................................4NPD.......................................................................................................4TCD .......................................................................................................5ECD.......................................................................................................5µ-ECD....................................................................................................5FPD .......................................................................................................5AED.......................................................................................................5MSD.......................................................................................................5

600 Performance Verification

610 Checkout Chromatograms

FID checkout conditions and chromatogram .........................................2Typical values ......................................................................................5

NPD checkout conditions and chromatogram........................................6Typical values ......................................................................................9

TCD checkout conditions and chromatogram ......................................10Typical values ....................................................................................13

ECD checkout conditions and chromatogram......................................14Typical values ....................................................................................17

Microcell ECD checkout conditions and chromatogram ....................18Typical values ....................................................................................21

FPD checkout conditions and chromatogram ......................................22Typical values ....................................................................................25



Contents

700 Preventive Maintenance

800 Error Codes and Internal Diagnostics

810 Overview

Error message types ................................................................................... 1Not ready.............................................................................................. 1Method mismatch ............................................................................... 1Warnings .............................................................................................. 2Shutdowns ........................................................................................... 2Faults .................................................................................................... 2Bad mainboard and fatal errors ........................................................ 2

820 Not Ready Messages

Oven temperature not ready...................................................................... 1Temperature zone not ready ..................................................................... 2Pressure and/or flow not ready................................................................. 3Detector not ready...................................................................................... 4Valve not ready............................................................................................ 7Miscellaneous messages ............................................................................ 8



Contents

830 Warning Codes

840 Shutdowns

850 Faults

860 Bad Mainboard and Fatal Errors

900 Remote Access

1000 Cabling Configuration and Electronics

1010 Cabling Diagrams, 6890A and 6890 Plus

Overview of 6890 GC cable connections..................................................16890 GCGC ChemStationGC Automatic Liquid Sampler ...................................................................26890 GCMass Selective DetectorGC ChemStationGC Automatic Liquid Sampler ...................................................................36890 GCGC Automatic Liquid SamplerNon-Agilent Data System ...........................................................................46890 GC3396B/C INET IntegratorGC Automatic Liquid SamplerModem..........................................................................................................56890 GC3395A/3396B IntegratorGC Automatic Liquid Sampler ...................................................................66890 GC3395B/3396C IntegratorGC Automatic Liquid Sampler ...................................................................7



Contents

6890 GC35900C/D/E Analog-to-Digital ConverterGC Automatic Liquid Sampler................................................................... 86890 GC7694 Headspace SamplerGC ChemStation.......................................................................................... 96890 GC7694 Headspace Sampler3396B/C INET Integrator ......................................................................... 106890 GC7694 Headspace SamplerNon-INET Integrator ................................................................................ 116890 GC7694 Headspace Sampler ......................................................................... 126890 GCExternal Events (an unspecified, non-Agilent instrument)................. 136890 GCG1900A Purge and Trap ........................................................................... 14

1015 Cabling Diagrams, 6890N

Overview of 6890N GC cable connections .............................................. 16890N GCGC ChemStation/CerityGC Automatic Liquid Sampler................................................................... 26890N GCMass Selective DetectorGC ChemStationGC Automatic Liquid Sampler................................................................... 36890N GCGC Automatic Liquid SamplerNon-Agilent Data System........................................................................... 46890N GC3395A/3396B IntegratorGC Automatic Liquid Sampler................................................................... 5



Contents

6890N GC3395B/3396C IntegratorGC Automatic Liquid Sampler ...................................................................66890N GC35900C/D/E Analog-to-Digital ConverterGC Automatic Liquid Sampler ...................................................................76890N GC7694 Headspace SamplerGC ChemStation..........................................................................................86890N GC7694 Headspace SamplerNon-INET Integrator...................................................................................96890N GC7694 Headspace Sampler .........................................................................106890N GCExternal Events (an unspecified, non-Agilent instrument) .................116890N GCG1900A Purge and Trap............................................................................136890N GCMass Selective DetectorGC ChemStation/CerityHeadspace Sampler ..................................................................................14

1020 Cable Electronics

Analog signal outputs .................................................................................1Analog cable — GC to 3395A/B or 3396B/C Integrators and

35900 C/D/E Analog to Digital Interface instrument....................1Analog cable — general use ..............................................................2

Automatic sampler, 6890A GC...................................................................3Cable pinouts, 6890 GC to Automatic Liquid Sampler ..................3

Automatic sampler, 6890 Plus and 6890N GCs........................................46890 Plus...............................................................................................46890N ....................................................................................................4

BCD Inputs...................................................................................................66890A and 6890 Plus ...........................................................................66890N ....................................................................................................7



Contents

External event ............................................................................................. 8Modem/RS-232C.......................................................................................... 9

Cable pinouts, 6890 GC to Computer via RS-232, 9-pin/9-pin ....... 9Cable pinouts, 6890 GC to Computer via RS-232, 9-pin/25-pin ... 10Cable pinouts, 6890 GC to Modem, 9 pin/9-pin ............................ 11Cable pinouts, 6890 GC to Modem, 9-pin/25-pin .......................... 12

Remote ....................................................................................................... 13Cable pinouts, remote start/stop, general use .............................. 13Cable pinouts, GC to 35900C, D, E/MSD/Sampler, 2 meters ...... 14Cable pinouts, 6890 GC to 3395A/3396B Integrator ..................... 15Cable pinouts, 6890 GC to 3395B/3396C Integrator ..................... 16Cable pinouts, 6890 GC to 7694 Headspace Sampler .................. 17Cable pinouts, APG Remote Y-cable ............................................. 18

1100 Valves

1110 Valves

Introduction................................................................................................. 1Valco W-series minivalves ......................................................................... 2

Valve bodies......................................................................................... 3Valve rotors.......................................................................................... 3

General purpose valves.............................................................................. 4Gas sample valves....................................................................................... 4

Gas sample loops ................................................................................ 4Adjustable restrictor valves............................................................... 4

Liquid sample valves................................................................................... 5Temperature ranges............................................................................ 5Adjustable restrictor valve................................................................. 5

1120 Valve Box

Installing the valve box .............................................................................. 1Removing the valve box assembly............................................................ 8

1130 Actuators

Installing the actuators............................................................................... 1



Contents

Valve drivers ................................................................................................4Installing the valve actuator drivers .........................................................5

Assemble the valve driver block .......................................................5Install the bracket and cabling ..........................................................7Install the valve driver block .............................................................8Valve actuator alignment..................................................................10

1140 Typical Valve Configurations

1150 Troubleshooting

Chromatographic symptoms .....................................................................1Loss of sensitivity or excessive drift.................................................2Loss of peaks in specific areas of the chromatogram ....................2Extraneous peaks................................................................................3Peak broadening and tailing ..............................................................3Baseline shifts......................................................................................3Baseline upsets ....................................................................................4Variation in peak area and retention time........................................4

Pressure check ............................................................................................5

1200 Electrical

1210 External Connectors, 6890A and 6890 Plus

Overview ......................................................................................................1Signal 1/Signal 2 analog out .......................................................................3APG remote start/stop................................................................................4

Signal descriptions..............................................................................5APG remote control ............................................................................5

RS-232 ..........................................................................................................7Signal descriptions..............................................................................8

External event .............................................................................................9BCD inputs.................................................................................................10GPIB ...........................................................................................................11Modular Input/Output (MIO) INET.........................................................12Modular Input/Output (MIO) LAN ..........................................................13



Contents

Sampler injector or tray ........................................................................... 14

1215 External Connectors, 6890N

Overview ...................................................................................................... 1Samplers and Tray ..................................................................................... 2Signal 1/Signal 2 analog out ....................................................................... 3Local Area Network (LAN)........................................................................ 4RS-232........................................................................................................... 5

Signal descriptions.............................................................................. 6Remote start/stop........................................................................................ 7

Signal descriptions.............................................................................. 7Remote control.................................................................................... 8

External event ............................................................................................ 9BCD inputs................................................................................................. 10

1220 Main Board, 6890A and 6890 Plus

Test points ................................................................................................... 1Connector electronics ................................................................................ 2Fuses............................................................................................................. 5Circuitry diagrams ...................................................................................... 6

1225 Main Board, 6890N

General board layout.................................................................................. 1Connectors................................................................................................... 3Fuses............................................................................................................. 5

1230 Power Supply

Setting the instrument power configuration ........................................... 1Line voltage configuration plug......................................................... 2Ceramic fuses ...................................................................................... 2Oven shroud......................................................................................... 3

Replaceable AC board fuses...................................................................... 4AC power board connectors...................................................................... 5AC power board circuitry .......................................................................... 7Testing resistance of the heater coil ........................................................ 9



Contents

1240 Wiring Harnesses

Inlet/Detector harness (G1530-60640)......................................................2Auxiliary Zone/Valve Box Harness (G1530-60660) .................................4PTV TC-PCB Cable Assembly....................................................................6Temperature sensor resistance .................................................................7

1300 Illustrated Parts Breakdown

1310 Inlets

Split/splitless inlet ......................................................................................2Split/splitless inlet column liners .............................................................5Split/splitless inlet EPC pneumatic module.............................................5Pneumatic carrier assembly G1585A .......................................................7Pneumatic carrier assembly ......................................................................8Split/splitless inlet manual pneumatic module .......................................9Capillary injection port (0 to 30 psig).....................................................11Capillary injection port subassembly (0 to 30 psig) .............................11Purged/packed inlet .................................................................................12Purged/packed inlet EPC pneumatic module........................................14Purged/packed inlet manual pneumatic module and inlet ..................16

Packed Inlet Optional Flow Restrictors .........................................16Packed column injection port supplies .................................................18Programmable cool on-column capillary inlet .....................................19Programmable cool on-column EPC pneumatic module.....................21Programmed temperature vaporization inlet ........................................22Programmed temperature vaporization inlet calibrated manifold assembly ....................................................................................24PTV LCO2 cryo assembly .........................................................................26PTV LN2 cryo assembly ............................................................................27Volatiles interface .....................................................................................28Volatiles interface calibrated manifold assembly .................................30Solvent vapor exit accessory...................................................................32Pneumatics control module.....................................................................34



Contents

1320 Detectors

Electron Capture Detector (ECD) ........................................................... 2Electron Capture Detector manifold assembly ...................................... 4Flame Ionization Detector (FID) .............................................................. 6Flame Ionization Detector manifold assemblys ..................................... 8Nitrogen Phosphorus Detector (NPD) .................................................. 10Nitrogen Phosphorus Detector manifold assembly ............................. 12Thermal Conductivity Detector (TCD) .................................................. 14Thermal Conductivity Detector manifold assembly............................. 16Microcell Electron Capture Detector (µECD) ...................................... 18Microcell Electron Capture Detector manifold assembly ................... 20Flame Photometric Detector (FPD)....................................................... 22Flame Photometric Detector jet and transfer tube assemblies .......... 24Flame Photometric Detector PMT and bracket assemblies................ 26Flame Photometric Detector covers, manifolds, and electronics ...... 28Auxiliary flow block ................................................................................. 30

1330 Covers

Metal covers ................................................................................................ 2Plastic covers .............................................................................................. 4Manual inlet flow manifold carrier (G1585A accessory) ....................... 6

1340 Oven

Oven assembly ............................................................................................ 2Oven flapper assembly .............................................................................. 4CO2 cryogenic cooling................................................................................ 6Liquid nitrogen cryogenic cooling ............................................................ 8

1350 Valves

Valve box assembly ................................................................................... 2Valve driver assembly ................................................................................ 4Valve actuator assembly (1 of 2) .............................................................. 6Valve actuator assembly (2 of 2) .............................................................. 8Valco W-series minivalve ......................................................................... 10Nickel catalyst assembly ......................................................................... 12



Contents

1360 Electrical

AC Power components ..............................................................................2AC Power circuit board ...........................................................................4Main circuit board, 6890A and 6890 Plus ...............................................6Main circuit board, 6890N ........................................................................8Modular input/output (MIO) components (6890A and 6890 Plus) .......9

INET components ...............................................................................9LAN components.................................................................................9

Pneumatics circuit boards ......................................................................11Analog input board (G1556A accessory) ...............................................13LAN board, 6890N .....................................................................................14Chassis fans ..............................................................................................15

Chassis fans .......................................................................................15ALS interface board (G2612A accessory, 6890 Plus only) ...................16

Index



Contents



Documents

100 Before Servicing the Instrument - UMass Amherst the tri-column assembly.....5 Replacing the pre-column assembly.....6 6 of 24 Jun 2001 Contents Contents Agilent 6890 Gas Chromatograph