Agilent | 6890 / 6850 GC FAQs By Usage Category

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Application issues

Valco equivalent part numbers for Agilent 6 and 10 port valves used in 6890 or 6850 GC

What is the Low Gas Alarm System? - 6890 / 6850 GC

Can you Provide Information on Agilent GC Column Phase Selection? - 6890 GC

How to Choose Right Column for a GC Analysis? - 6890 GC

What are Some Tips and Considerations for Method Development? - 6890 GC

What are Appropriate Injection Port Temperatures for an Analysis? - 6890 GC

What are the General Considerations for Using Cryogenic Operation? - 6890 GC

Chromatographic issues

What are the Possible Causes of Resolution Loss and Retention Time Shift After Installing a New Column? - 6890 / 6850 GC

Why Do PID/FID Diesel Hydrocarbon Peaks > C16 To Have Lower Sensitivity and More Tailing? - 6890 GC

Why is there a Sudden Loss of Sensitivity for the FID? - 6890 GC

What are the Steps to Check for Capillary Column Bleed? - 6890 GC

How to Troubleshoot Peak Shape Problems? - 6890 GC

What are the Steps to Troubleshoot Noise/High Background in the FID? - 6890 GC

Why does the FID have spikes on the baseline? - 6890 GC

How do I Troubleshoot ECD Contamination Problems? - 6890 GC

What Options Are Available To Increase FPD Sulfur Sensitivity? - 6890 GC

Configuration

Firmware Requirement for CTC with 6890

6850 GC Fault: 208/210, 0-1 mV Signal Path Fail/Analog Out Fail.

6850 GC: Fault 201 Pneumatics Control.

6850 GC: Fault 203-207, Signal DSP Faults.

6890GC: Shutdown 5 - Back Inlet Pressure Shutdown.

6850 GC: Shutdown 16 Valve 2 Not Switching/Shutdown 17 Valve 2 Setpt error.

6850 GC Error: Shutdown 2, Oven Cryo Shut Off.

6850 Error: Shutdown 7, 8, 9; H2 Gas, Air/Ref, Det Makeup Pressure.

6850 GC Error: Shutdown 3 Inlet Pressure/Shutdown 4 Inlet Flow.

6850 GC Shutdown Error: Shutdown 1 Oven Shut Off.

Error messages/System not ready

What does Error Message "WARNING 101/102" Indicate? - 6890 GC

What does Error Message "Fault: 259 or 260, Detector bd not the same as module" Indicate? - 6890 GC

What does Error Message "Fault 280 --284, Front/Back Inlet /Detector- Pneu Aux read/write failure" Indicate? - 6890 GC

What does Error Message "Fault 250 --258' Wrong /Invalid Inlet-Detector- Aux Module" Indicate? - 6890 GC

What does Error Message "Fault 245 --249, F/B det- F/B inlet- Pres Aux Module: obsolete EEPROM" Indicate? - 6890 GC

What does Error Message "Fault 242/243/244, Pneumatics aux module invalid constants" Indicate? - 6890 GC

What does Error Message "Faults 291/292, Duct fan- Inlet Fan" Indicate? - 6850 GC

What does Error Message "Fault 265 --269, Invalid inlet/Detector/Aux Module PIDs" Indicate? - 6890 GC

What is the Strange Noise Coming from the Injection Port? - 6890 GC

What does Error Message "Shutdown 16—Multiposition valve not switching" Indicate? - 6890 GC

What does Error Message "Shutdown: can't reach setpoint multiposition valve" Indicate? - 6890 GC

What does Error Message "Shutdown2- Cryogenic shut off" Indicate? - 6890 GC

Why does the Flame Go Out on the GC FID During a Run? - 6890 GC

What does Error Message 'Inlet Flow Shutdown.' Indicate? - 6890 GC

Why Will The GC FID Not Light? - 6890 GC

Why does the FID Air Flow Not Reach Setpoint? - 6890 GC

What does Error Message "Fault 261--264, Host communications" Indicate? - 6890 GC

What does Error Message "Fault 214/215 Detector flame out" Indicate? - 6890 GC

How do I troubleshoot FPD Flame Ignition Problems? - 6890 GC

What Does The Error Message 'Warning Oven Shut Off' Indicate? - 6890 GC

What are the Steps to Diagnose FID Noise Problems? - 6890GC

What does Inlet Temperature Message 'NOT INSTALLED' Indicate? - 6890 GC

What does the Error Message 'Oven Shutoff' Indicate? - 6890 GC

What Does Error 'Shutdown #1- Oven Shut Off' indicate? - 6890 GC

Why will the Split / Splitless EPC Inlet Not Build Pressure To Reach The Setpoint? - 6890 GC

Why won't my FID automatically re-light? - 6890 GC

Why won't my GC become ready for an injection? - 6890 GC

Why Does the Split / Splitless Inlet Pressure Build Slowly or Not Reach Setpoint? - 6890 / 6850 GC

Why does the Split / Splitess Inlet Pressure Rise Above The Setpoint? - 6890 GC

What Might Cause a 6890 Sequence To Stop After One Run When Using a non-Agilent Injector? - 6890 GC

What Does Error 'Safety Shutdown' Indicate? - 6890 GC

Why is the FID Detector Signal Output 830,000 PA? - 6890 GC

Why Will the GC FID Not Light? - 6890 GC

What Do WARNING 103,104, Signal 1, or 2 BUFFER FULL indicate? - 6890 GC

Familiarization

How can a GC Run be Started from a Scheduler Without an ALS? - 6890 GC

What are the Steps to Determine the Firmware Revision for the GC or ALS? - 6890 GC

Can the Capillary / VI Inlet be Used in Splitless Mode with External Samplers? - 6890 GC

What is the Conversion Between GC Detector Display Units and Analog Output? - 6890 GC

Can the GC run in Splitess Mode with a Headspace Unit Attached? - 6890 GC

What are the Steps to Relocate the ALS Tower to the Other Injection Port Without Communication Disconnection? - 6890 GC

What is the Safety Shut Off Feature (When Flame is Out) on the FID? - 6890 GC

How many Filaments does a TCD have? - 6890 GC

What is the Pressure Limit for a Gas Sampling Valve? - 6890 GC

Can Large Sample Volumes be Injected with the CTC PAL Autosampler? - 6890 GC

Is it possible to connect a TCD to a FID in series? - 6890 GC

Can a Valve Be Mounted Inside The GC Oven? - 6890 GC

How many valves can be installed on a 6890 GC? - 6890 GC

Why are There High and Low Temperature Valves? - 6890 GC

What are Upstream and Downstream GC Valves? - 6890 GC

Can a Valve be Installed on the Capillary Inlet of the GC? - 6890 GC

Is it Possible to Acquire Data from a Non-Agilent GC Detector? - 6890 GC

What is the HP-IB address of my GC? - 6890 GC

Can two FPD 's mounted on a 6890 GC and inject samples simultaneously? - 6890 GC

Can Carrier Gas Consumption be Minmized When Using a High Split Flow Rate? - 6890 GC

What Inlet Types Are Available For The GC? - 6890 GC

What is the Pin Out Configuration for the GC Remote Cable? - 6890 GC

What is the Pin Out Configuration of Remote Extender Y and H cables? - 6890 GC

What are the Steps to Load the Default Setpoints Through the GC Keyboard? - 6890 GC

Which of the Two Split / Splitless Tubes do I Use to Connect the Headspace Sampler? - 6890 GC

What is Injection Port Backflushing and What is the Impact on an Analysis? - 6890 GC

What are the Common Valve Configurations for the 6890 GC? - 6890 GC

What are the Steps to Install a 1/4 Inch Glass Column in the GC? - 6890 GC

What are the Steps to Configure Column Parameters from the GC Keypad? - 6890 GC

What are the Steps to Install a 1/8 inch or 1/4 inch Metal Column to the GC? - 6890 GC

What are the Steps to Execute the ECD CHECKOUT Procedure? - 6890 GC

What are the Steps to Execute the FID CHECKOUT Procedure? - 6890 GC

What are the Steps to Execute the NPD CHECKOUT Procedure? - 6890 GC

What are the Steps to Execute the TCD CHECKOUT Procedure? - 6890 GC

General

What Types of Low Gas Alarm Systems are Available? - 6890 / 6850 GC

Flip Top Inlet Sealing System-6890/6850 Gas Chromatographs.

P/N of the Flip Top Inlet Sealing for 6890/6850/6820 Gas Chromatographs.

Installation manual for Flip Top Inlet Sealing for 6890/6850 Gas Chromatographs

Spots on PLOT columns and will they affect the performance - 6890/6850 GC

GC Column Test standards - 6890/6850 GC

Link for local seminars, trade shows, customer training courses - 6890/6850 GC

Multi Mode Inlet support for 6890/6850 GC

What support is available for the Obsolete 6890/6850 GC - 6890/6850 GC?

What are the Exhaust Venting Requirements for the GC? - 6890 GC

What can be Used to Secure the Capillary Column Ferrule Befor Attaching to the Split / Splitless Inlet? - 6890 GC

Is the 6850 GC Compatible with the CTC GC PAL and Combi PAL Autosamplers? - 6850 GC

What are the Minimum Firmware Requirements for Upgrading to a CTC PAL Autosampler? - 6850 GC

What GCs Support Retention Time Locking (RTL)? - 6890 GC

What is the Maximum Injection Volume of Combi PAL? - 6890 GC

How does the Agilent Nitrogen Chemiluminescence Detector (255 NCD) Function? - 6890 GC

What are the Specifications for the SCD and NCD? - 6890 GC

Does Combi PAL have SPME Capability?

What are the Steps to Recover the GC Column Catalog Inventory Following a ChemStation Reload? - 6890 GC

What is the Re-order Part Number for the 6850A Control Module? - 6850 GC

What are the Recommendations for Gases Used in GC? - 6890 / 6850 GC

What is the Module Compatibilty for Interchange of Old Auto Samplers?

What are the Power Requirement Specifications for the GC? - 6890 GC

What are the Site Preparation Specifications for the GC? - 6890 GC

Which Coolant is Needed for a Cryogenic Application? - 6890 GC

Can a Sudden Electrial Failure Damage the GC, Detectors or Inlets? - 6890 GC

Maintenance

Stand-by mode or Not Ready mode with dirty samples- 6890/6850 GC

What are the Part Numbers for the GC Keyboard? - 6890 GC

How Do I Reset the Serial Number After Main Board Replacement? - 6890 GC

What is the EPC AUX Flow Module Part Number? - 6890 GC

What are the Part Numbers for the Inlet Filters Shipped with the GC? - 6890 GC

What is the Best Way to Maintain a Flame Ionization Detector (FID)? - 6890 GC

How Can I Avoid Inlet Contamination when Analyzing Dirty Samples? - 6890 GC

How do I Ensure Optimum Performance for Agilent Detectors? - 6890 GC

What is the Part Number for TCD Replacement Cell? - 6890 GC

What are the Steps to Install A Makeup Gas Adapter in an ECD? - 6890 GC

What are the Criteria for Determining the Insert Assembly Needed for a Split / Splitless Inlet? - 6890 GC

What are the Steps for Replacing an EPC Module Proportional Valve? - 6890 GC

What are the Steps to Perfom a Thermal Cleaning or Bakeout of a MicroECD (uECD)? - 6890 GC

What are the Steps to Perfom a Thermal Cleaning or Bakeout of an ECD? - 6890 GC

What is the Best Procedure to Replace the FPD Ignitor? - 6890 GC

What are the Steps to Install a Capillary Column into the Capillary Split/Splitless Inlet? - 6890 GC

What are the Steps to Install a Capillary Column in a Packed / Purged Packed Inlet? - 6890 GC

What are the Steps to Install a Capillary Column in the Programmable Cool On Column (PCOC) Inlet? - 6890 GC

What are the Steps to Install a Capillary Column in the Programmable Temperature Vaporization (PTV) Inlet? - 6890 GC

What are the Steps to Install a Capillary Column in a FID? - 6890 GC

What are the Steps to Install a Capillary Column into a NPD? - 6890 GC

What are the Steps to Install a Capillary Column in an ECD or uECD? - 6890 GC

What are the Steps to Install a Capillary Column into a FPD? - 6890 GC

What are the Steps to Install a Capillary Column into a TCD? - 6890 GC

What are the Steps to Install a Capillary Column into a Volatile Interface (VI)? - 6890 GC

What Procedure Should be Followed to Shut Down the GC? - 6890 GC

What are the Steps to Decrease Activity Within The GC Split/Splitless Inlet? - 6890 GC

What are the Steps to Leak Test the FPD? - 6890 GC

What are the Steps to Measure the Gas Flows in the FID? - 6890 GC

What are the Steps to Maintain and Zero the Inlet EPC Calibration Parameters? - 6890 GC

What are the Steps to Replace the FPD Multiplier Tube? - 6890 GC

What are the Steps to Replace the Fused Silica Transfer Liner in the FPD? - 6890 GC

What are the Steps to Install Gas and Liquid Sampling Valves in the GC? - 6890 GC

What are the Steps to Leak Test the Valves in a GC? - 6890 GC

What is the Recommended uECD Cleaning Procedure? - 6890 / 6850 GC

What are the Steps to Replace the Split Vent Trap? - 6850 GC

What is the Recommended Maintenance / Cleaning Procedure for the PTV Inlet? - 6890 GC

What is the Recommended Maintenance / Cleaning Procedure for the Volatile Interface (VI) inlet? - 6890 / 6850 GC

What are the Steps to Replace Firmware eproms on the GC Mother Board? - 6890 GC

What are the Steps to Execute the uECD CHECKOUT Procedure? - 6890 GC

What is the Procedure to Perform Split/Splitless Inlet Maintenance? - 6890 GC

What are the Steps to Install an Agilent FlipTop Inlet Sealing System? - 6890 GC

System communication issues

What are the Common Cabling Diagrams for Connection to a non-Agilent data system? - 6890 GC

Do I need a hub to connect a G1888A and a 6890/6850 to a Chemstation PC? - 6890 / 6850 GC

Why won't my purge and trap start my GC? - 6890GC

Why is the GC Not Found After a Firmware Upgrade? - 6890 GC

What are the Steps to Determine and/or Change the GC IP Address? - 6890N GC

What are the Common Cable Diagrams for Connecting a GC/MS with ALS System? - 6890 GC

What are the Steps to Configure the GC Network Parameters (LAN)? - 6890 GC