Agilent Technologies 7820A User Manual

Agilent Technologies
Agilent 7820A
Gas Chromatograph
Maintaining Your GC

Agilent Technologies 7820A Specifications

General

Type	Gas Chromatograph
Temperature Range	Ambient +4 °C to 450 °C
Detector Options	FID, TCD, ECD, NPD, FPD
Inlet Options	Split/Splitless, PTV
Data Handling	Agilent OpenLab CDS
Power Requirements	100-240 V, 50/60 Hz

Summary

About Maintaining the GC

Overview of Maintenance

Details routine tasks for maintaining the 7820A GC, assuming basic operational knowledge.

Tools and Materials Required for Maintenance

Lists common tools and materials needed for most GC maintenance procedures.

Maintenance Methods for the 7820A GC

Describes recommended maintenance methods for preparing the GC before procedures.

Safety Information

Provides guidance on important safety and regulatory information to read before maintenance.

Finding a Replacement Part Number

Explains how to use Agilent's Parts Finder tool to locate part numbers.

Removing Covers

To Remove the Detector Top Cover

Step-by-step instructions for removing the detector top cover.

To Remove the Pneumatics Cover

Step-by-step instructions for removing the pneumatics cover.

To Remove the Side Cover

Step-by-step instructions for removing the side cover.

To Remove the Electronics Cover

Step-by-step instructions for removing the electronics cover.

Maintaining Capillary Columns

Consumables and Parts for Columns

Lists consumables and parts required for maintaining capillary columns.

To Install a Capillary Column Hanger

Provides instructions for installing a capillary column hanger.

To Install Capillary Column Clips

Provides instructions for installing capillary column clips.

To Condition a Capillary Column

Step-by-step guide for conditioning a capillary column.

To Cut a Loop from a Column

Instructions for cutting a loop from a capillary column.

To Reverse a Column and Bakeout Contaminants

Procedure for reversing a column and baking out contaminants.

Maintaining the Split/Splitless Inlet

Consumables and Parts for the Split/Splitless Inlet

Lists consumables and parts for the split/splitless inlet.

Exploded Parts View of the Split/Splitless Inlet

Diagram showing exploded parts of the split/splitless inlet.

To Install a Capillary Column with the Split/Splitless Inlet

Instructions for installing a capillary column into the split/splitless inlet.

To Change the Septum on the Split/Splitless Inlet

Procedure for changing the septum on the split/splitless inlet.

To Clean the Septum Seat in the Insert Assembly of the Split/Splitless Inlet

Steps to clean the septum seat in the insert assembly.

To Change the Liner and O-Ring on the Split/Splitless Inlet

Instructions for changing the liner and O-ring on the inlet.

To Replace the Gold Seal on the Split/Splitless Inlet

Procedure for replacing the gold seal in the split/splitless inlet.

Check for leaks

Procedure for checking for leaks in the split/splitless inlet.

To Replace the Filter in the Split Vent Line

Steps to replace the filter in the split vent line.

To Clean the Split/Splitless Inlet

Instructions for cleaning the split/splitless inlet.

To Bakeout Contaminants from the Split/Splitless Inlet

Procedure for baking out contaminants from the split/splitless inlet.

Maintaining the Purged Packed Inlet

Consumables and Parts for the Purged Packed Inlet

Lists consumables and parts for the purged packed inlet.

Exploded Parts View of the Purged Packed Inlet

Diagram showing exploded parts of the purged packed inlet.

To Install a Capillary Column with the Purged Packed Inlet

Instructions for installing a capillary column into the purged packed inlet.

To Change the Septum on the Purged Packed Inlet

Procedure for changing the septum on the purged packed inlet.

To Clean the Septum Seat in the Purged Packed Inlet

Steps to clean the septum seat in the purged packed inlet.

To Install an Adapter on the Purged Packed Inlet

Instructions for installing an adapter on the purged packed inlet.

To Change the O-Ring on the Purged Packed Inlet

Procedure for changing the O-ring on the purged packed inlet.

To Change the Glass Liner on the Purged Packed Inlet

Instructions for changing the glass liner on the purged packed inlet.

To Install an Insulation Cup on the Purged Packed Inlet

Steps for installing an insulation cup on the purged packed inlet.

To Clean the Purged Packed Inlet

Instructions for cleaning the purged packed inlet.

To Bakeout Contaminants from the Purged Packed Inlet

Procedure for baking out contaminants from the purged packed inlet.

To Install a Packed Metal Column

Instructions for installing a packed metal column.

To Install a Packed Column Adapter on a Detector Fitting

Steps to install a packed column adapter on a detector fitting.

To Install a Packed Glass Column

Instructions for installing a packed glass column.

To Condition a Packed Column

Procedure for conditioning a packed column.

To Install Ferrules on a Packed Metal Column

Steps for installing ferrules on a packed metal column.

Maintaining the Packed Column Inlet

Consumables and Parts for the Packed Column Inlet

Lists consumables and parts for the packed column inlet.

Exploded Parts View of the Packed Column Inlet

Diagram showing exploded parts of the packed column inlet.

To Change the Septum on the Packed Column Inlet

Procedure for changing the septum on the packed column inlet.

To Clean the Septum Seat in the Packed Column Inlet

Steps to clean the septum seat in the packed column inlet.

To Install an Adapter on the Packed Column Inlet

Instructions for installing an adapter on the packed column inlet.

To Change the O-Ring on the Packed Column Inlet

Procedure for changing the O-ring on the packed column inlet.

To Change the Glass Liner on the Packed Column Inlet

Instructions for changing the glass liner on the packed column inlet.

To Install an Insulation Cup on the Packed Column Inlet

Steps for installing an insulation cup on the packed column inlet.

To Clean the Packed Column Inlet

Instructions for cleaning the packed column inlet.

To Bakeout Contaminants from the Packed Column Inlet

Procedure for baking out contaminants from the packed column inlet.

To Install a Packed Metal Column

Instructions for installing a packed metal column.

To Install a Packed Column Adapter on a Detector Fitting

Steps to install a packed column adapter on a detector fitting.

To Install a Packed Glass Column

Instructions for installing a packed glass column.

To Condition a Packed Column

Procedure for conditioning a packed column.

To Install Ferrules on a Packed Metal Column

Steps for installing ferrules on a packed metal column.

Maintaining the COC Inlet

Consumables and Parts for the COC Inlet

Lists consumables and parts for the COC inlet.

Exploded Parts View of the COC Inlet

Diagram showing exploded parts of the COC inlet.

To Install a Capillary Column with the COC Inlet

Instructions for installing a capillary column with the COC inlet.

To Check the Needle-to-Column Size on the COC Inlet

Procedure to check needle-to-column size on the COC inlet.

To Change a Septum on the COC Inlet

Instructions for changing the septum on the COC inlet.

To Install an Insert on the COC Inlet

Steps for installing an insert on the COC inlet.

To Clean the COC Inlet

Instructions for cleaning the COC inlet.

To Replace the 7693A Injector Needle Support Guide

Procedure to replace the 7693A injector needle support guide.

To Replace the Needle Support Assembly in a 7683B Injector

Instructions for replacing the needle support assembly in a 7683B injector.

To Replace a Needle in a Syringe

Procedure for replacing a needle in a syringe.

To Replace the Fused Silica Needle in a Syringe for the COC Inlet

Instructions for replacing a fused silica needle in a syringe for the COC inlet.

To Bakeout Contaminants from the COC Inlet

Procedure for baking out contaminants from the COC inlet.

Maintaining the FID

Consumables and Parts for the FID

Lists consumables and parts for the FID detector.

Exploded Parts Views of the FID

Diagrams showing exploded parts of the FID detector.

Selecting an FID Jet

Guide for selecting the correct FID jet.

To Attach a Capillary Column Adapter on an Adaptable FID

Instructions for attaching a capillary column adapter to an adaptable FID.

To Install a Capillary Column in the FID

Steps for installing a capillary column in the FID.

To Replace the FID Collector Assembly

Procedure for replacing the FID collector assembly.

To Replace an FID Jet

Instructions for replacing an FID jet.

To Perform Maintenance on the FID Collector Assembly

Steps for performing maintenance on the FID collector assembly.

To Check the FID Leakage Current

Procedure for checking the FID leakage current.

To Check the FID Baseline

Steps for checking the FID baseline.

To Install the FID Insulation Cup Assembly (Adaptable FID Only)

Instructions for installing the FID insulation cup assembly.

To Install the Optional FID PTFE Chimney Insert

Steps for installing the optional FID PTFE chimney insert.

To Bakeout the FID

Procedure for baking out the FID detector.

Maintaining the TCD

Consumables and Parts for the TCD

Lists consumables and parts for the TCD detector.

To Install a Capillary Column in the TCD

Instructions for installing a capillary column in the TCD.

To Install the Optional TCD Capillary Column Adapter

Steps for installing the optional TCD capillary column adapter.

To Install a Capillary Column with the Optional TCD Capillary Column Adapter

Instructions for installing a capillary column with the adapter.

To Bakeout Contaminants from the TCD

Procedure for baking out contaminants from the TCD.

Maintaining the µECD

Important Safety Information About the µECD

Provides critical safety information regarding the µECD and its radioactive Ni-63 source.

Consumables and Parts for the µECD

Lists consumables and parts for the µECD detector.

Exploded Parts View of the µECD

Diagram showing exploded parts of the µECD detector.

To Replace the µECD Fused Silica Indented Mixing Liner and Install the Makeup Gas Adapter

Instructions for replacing the liner and installing the makeup gas adapter.

To Install a Capillary Column in the µECD

Steps for installing a capillary column in the µECD.

To Install the Insulating Cup for the µECD

Instructions for installing the insulating cup for the µECD.

To Bakeout the µECD

Procedure for baking out the µECD detector.

Maintaining the NPD

Consumables and Parts for the NPD

Lists consumables and parts for the NPD detector.

Exploded Parts View of the NPD

Diagram showing exploded parts of the NPD detector.

Selecting an NPD Jet

Guide for selecting the correct NPD jet.

To Attach a Capillary Column Adapter on an Adaptable NPD

Instructions for attaching a capillary column adapter to an adaptable NPD.

To Install a Capillary Column in the NPD

Steps for installing a capillary column in the NPD.

To Replace the NPD Bead Assembly

Procedure for replacing the NPD bead assembly.

To Maintain the NPD Collector, Ceramic Insulators, and Jet

Instructions for maintaining NPD collector, insulators, and jet.

To Check the NPD Leakage Current

Procedure for checking NPD leakage current.

To Bakeout the NPD

Procedure for baking out the NPD detector.

Maintaining the FPD+

Consumables and Parts for the FPD+

Lists consumables and parts for the FPD+ detector.

Exploded Parts View of the FPD+

Diagram showing exploded parts of the FPD+ detector.

To Install a Packed Column Adapter in the FPD+

Instructions for installing a packed column adapter in the FPD+.

To Attach a Capillary Column to the FPD+

Steps for attaching a capillary column to the FPD+.

To Change the FPD+ Wavelength Filter

Procedure for changing the FPD+ wavelength filter.

To Remove the FPD+ Cover

Instructions for removing the FPD+ cover.

To Replace the FPD+ Ignitor

Procedure for replacing the FPD+ ignitor.

To Install the FPD+ Cover

Steps for installing the FPD+ cover.

Cleaning the FPD+ Brazement

Instructions for cleaning the FPD+ brazement.

Maintaining the G3435A/G3436A FPD

Consumables and Parts for the FPD

Lists consumables and parts for the G3435A/G3436A FPD.

Exploded Parts View of the FPD

Diagram showing exploded parts of the FPD.

To Install a Capillary Column Adapter in the FPD

Instructions for installing a capillary column adapter in the FPD.

To Attach a Capillary Column to the FPD

Steps for attaching a capillary column to the FPD.

To Change the FPD Wavelength Filter

Procedure for changing the FPD wavelength filter.

To Remove the FPD Vent Tube

Instructions for removing the FPD vent tube.

To Replace the FPD Ignitor

Procedure for replacing the FPD ignitor.

To Install the FPD Vent Tube and Cover

Steps for installing the FPD vent tube and cover.

Maintaining the PCM

Consumables and Parts for the PCM

Lists consumables and parts for the PCM.

Calibrating the PCM Interface

Procedure for calibrating the PCM interface.

Installing or Replacing Frits in the PCM

Instructions for installing or replacing frits in the PCM.

Maintaining a Valve

Consumables and Parts for Valves

Lists consumables and parts for valves.

Exploded Parts View of GC Rotary Valves

Diagram showing exploded parts of GC rotary valves.

To Replace a Gas Sampling Valve Loop

Procedure for replacing a gas sampling valve loop.

To Align a Rotary Valve Rotor

Instructions for aligning a rotary valve rotor.

To Replace a Rotary Valve in the Valve Box

Procedure for replacing a rotary valve in the valve box.

To Remove the Upper Valve Box

Instructions for removing the upper valve box.

To Install the Upper Valve Box

Steps for installing the upper valve box.

Swagelok Connections

Making Swagelok Connections

Objective and materials for making leak-free tubing connections.

Using a Swagelok Tee

Instructions for using a Swagelok Tee to supply gas from one source to multiple inputs.