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Please select a topic from this section below:
5890 GC
6890 / 6850 GC
7890 GC
General GC Hardware
Head Space Sampler
Low Thermal Mass (LTM)
Click a question below to see the answer:
What are the Exhaust venting requirements for the GC?
Why won't my 6890 FID automatically re-light?
Why won't my GC become ready for an injection?
Why won't my purge and trap start my 6890 GC?
What is the HP-IB address of my GC?
My FID detector signal output is 830,000 PA
My FID will not light
My 6890 GC display’s WARNING 103,104, Signal 1, or 2 BUFFER FULL, what does this mean?
If there is a sudden electrical failure to my 6890 GC, is there any possibility of damage to the GC or its detectors and inlets?
What are the specifications for the pressure/flow sensors in the 6890 EPC systems?
What are the correct part numbers for the 6890 Keyboard?
Can the 6890 Capillary Inlet or VI Inlet be used in splitless mode when using external samplers?
After changing the GC's main board, how do I re-install the GC serial number so it will be shown in the display?
What is the part number for the EPC AUX flow module for the 6890A?
What is the part number for the replacement filters currently being shipped with 6890A inlets?
What is the best way to maintain a flame ionization detector (FID)?
How can I avoid inlet contamination when analyzing dirty samples?
How do I assure optimum performance for my Agilent detectors?
Chemstation does not see the 6890 after I upgraded the firmware?
Why does my 6890 FID have spikes on the baseline?
How can I immediately start my 6890 (G1540A) GC run from a scheduler without ALS?
How do I locate the version of firmware for my 6890 and Automatic Liquid Sampler (ALS) from the keypad of the GC?
How do I locate and change the IP address on the 6890N?
Can I run my 6890GC in Splitless mode with a Headspace unit attached?
How can I change my Automatic Liquid Sampler (ALS) Tower from the Front Injection Port to the Back Injection Port of a 6890 GC without unplugging the tower from the 6890N GC, 6890Plus GC, the G1512A ALS controller or G2912A ALS Controller?
My 6890/6850GC Split/Splitless inlet builds pressure but, it rises very slow or at times doesn't reach the setpoint and shuts down. How should I troubleshoot this problem?
My 6890 Split/Splitless inlet pressure rises above the setpoint. What is the cause of this problem?
I am using non-Agilent data system to evaluate data from a 6890. What is the conversion between display units and analog output?
I have a 6890A and a 6890N connected to an another vendor's software,both Gc's will only inject one time and then stop. What would cause this problem?
My 6890 displays an error 'Hydrogen Safety Shutdown' what does this mean?
What is the correct part number for 6890 TCD replacement cell
My 6890 GC shuts down only seconds after I turn it on. The error displayed is 'Shutdown #1- Oven Shut Off', how do I troubleshoot this problem?
Are there different insert assemblies for the same split/splitless inlet? If so, how can I tell which one I need?
I suspect that the EPC module on my 6890 GC is leaking. I would like to replace the internal proportional valve. What is the part number for the valve and where can I find the instructions?
My 6890 GC EPC split/splitless inlet will not build pressure, what is the best way to troubleshoot this problem?
I have a 6890A and a 6890N connected to another vendor's autosampler, while in sequence both Gc's will inject one time only and then stop. What could be the cause of this problem?
How do I install the makeup gas adapter in ECD in 6890 GC ?
What is the term called Thermal Cleaning or Bakeout used in MicroECD?
What is meant by the term 'Thermal Cleaning' or 'Bakeout' used in ECD?
Do I need a hub to connect a G1888A and a 6890/6850 to a Chemstation PC?
Can we have two FPD 's mounted on a single 6890 GC and inject samples simultaneously ?
How do I troubleshoot FPD Flame Ignition Problems?
Is it possible to connect a TCD to a FID in series?
Can we mount a valve inside the oven?
How many valves can be installed on a 6890 GC?
Why are there high and low temperature valves?
What are the upstream and downstream valves?
Can I install a valve to my capillary inlet of GC 6890?
Is it possible to acquire data from non agilent GC Detector?
What would cause the oven to not reach the oven setpoint and shutdown with 'Warning Oven Shut Off'?
How many filaments does a 6890 GC TCD have?
Can we plumb a system with a Liquid Sampling Valve and Gas Sampling Valve in series and interfaced to a capillary inlet?
What is the pressure limit for a Gas Sampling Valve?
Can we Inject large Sample volumes with CTC PAL autosampler on Agilent 6850/6890 GC? What features are available?
Should I do OQ after an the equipment is moved to another place in the lab, to another lab in the same or in an other building ?
Should I do OQ after an instrument upgrade?
Should I do a complete OQ after an instrument repair?
Should I perform an OQ test before maintenance?
Should I do preventive maintenance before OQ?
Can a vendor, user, or a 3rd party consultant perform Operational Qualification Tests?
My instrument has many modules and for OQ should I test each module or the system as a whole?
How frequently should an Operational/Qualification be repeated?
Should each instrument of the same category have the same acceptance limit or should they be application or instrument specific?
How to choose the TEST SAMPLE for OQ?
Is it a must to use manufacturer's Operation/Qualification procedures only ?
How do I troubleshoot a noise problem in my FID chromatogram?
My 6890 GC shows inlet temperature 'NOT INSTALLED'. What could be the problem?
An 'Oven Shutoff' occurred on my 6890 GC. The measured temperature at the time of the shutoff was about 100 degrees. What could be the problem?
What is the safety shut off feature (when flame is out) on 6890 FID?
My 6890 FID flame sometimes goes out while the method is running and acquiring data. What could be the problem?
My 6890 GC shows error message 'Inlet Flow Shutdown.' What could be the problem?
My 6890 FID does not ignite. What could be the problem?
My 6890 GC FID air flow does not reach the setpoint flow rate. What could be the problem?
My method uses high split flow rate. Can I minimize carrier gas consumption on my 6890 GC?
What inlet types are available with Agilent 6890/6850 GC and what are their areaf of use?
I just received new product requirements that call for a much lower sulfur content. I am working on a 6890N GC with an old Agilent FPD that barely meets my current sensitivity requirements. What options do I have?
What is the best way to replace the FPD ignitor?
How do I install a capillary column into the split/splitless (capillary) inlet?
How do I install capillary column in the packed and purged packed inlet?
Where can I find instructions on how to install a capillary column in the Programmable Cool On Column (PCOC) inlet?
Where can I find the instructions on how to install a capillary column in The Programmable Temperature Vaporization (PTV) Inlet?
How to install capillary column in FID?
Where can I find instructions on how to install a capillary column into a NPD?
How do I install a capillary column in Electron Capture Detector and a Micro Electron Capture Detector?
How do I install a capillary column into a Flame Photometric Detector?
How do I install capillary column into a Thermal Conductivity Detector?
How do I install a capillary column into a Volatile interface (VI)?
What procedure should be followed to shut down the GC?
What is the proper way to clean my 6890 or 5890 Split/Splitless inlet to try and decrease activity within the inlet?
Which tube in my new split/splitless inlet's top insert assembly do I need to cut to connect my Head space sampler as the two tubes are different?
My 6890 GC displays Fault 261--264, Host communications. What could be the problem?
My 6890 GC displays Fault 214/215 Detector flame out. What could be the problem?
Which coolant do I need to use for my cryogenic application?
How do I load the default setpoints of my 5890 and 6890 GC through the keyboard?
What is the best way to maintain and zero the inlet EPC calibration parameters for the 6890 GC?
Can you provide us tips and consideration on method development?
What is the pin out configuration for the Remote cable used in 6890A GC?
What is the pin out configuration of Remote extender Y and H cable used in 6890 GC and what is the use of them?
How to replace the FPD multiplier tube in my 6890 GC?
How do I replace the fused silica transfer liner in my 6890 Flame Photometric Detector?
I am getting this error on my 6890 GC, Shutdown 16—Multiposition valve not switching, what could be causing this error?
Why am I getting the error message: Shutdown can't reach setpoint multiposition valve?
Why I am getting the error message shutdown2- Cryogenic shut off?
How do I install gas and liquid sampling valves in 5890 and 6890 GC?
What is the best way to leak test the valves in my GC?
How should I set my Injection Port Temperatures appropriately for GC Analyses?
What is the module compatibilty if I want to interchange old auto samplers?
What is backflush in the injection port and what is its impact on GC analysis?
Why is my 6890 GC displaying 'Fault 265 --269, Invalid inlet/Detector/Aux Module PIDs'?
What are the power requirement specifications for the 6890 GC?
What are the site preparation specifications for the 6890 GC?
How do I leak test the 6890 GC Flame Photometric Detector (FPD)?
How do we measure the gas flows in my 6890 Flame Ionization Detector (FID)?
What are the common Valve configurations for 5890 and 6890 GC's ?
What is the Re-order Part Number for 6850A Control Module?
Why there is a sudden loss of sensitivity in my FID?
My 6850 GC displays Faults 291/292, Duct fan- Inlet Fan. What could be the problem?
How to troubleshoot peak shape problems?
What are the recommendations for the gases used in GC?
What is the What is the recommended uECD (micro ECD) cleaning procedure for the Agilent 6890/6850 GC?
How do I install a 1/8 inch or 1/4 inch metal column to my Agilent 6890/6850 GC?
What are the general points to be considered while using cryogenic operation?
How so I install 1/4 inch Glass Columns to Agilent 6890 GC?
What is the recommended maintenance / cleaning procedure for the Agilent 6890/6850 programmable temperature vaporizing (PTV) inlet?
What is the recommended Maintenance / cleaning procedure for Agilent 6890/6850 Volatile Interface (VI) inlet?
How do I verify the HPIB address of my 6890 GC?
How do I configure the column parameters from my Agilent 6890 GC keypad?
What are the common cable diagram if we want to connect 6890N GC to non Agilent data system?
How do I replace the Split Vent trap a 6850 GC?
How to troubleshoot the Noise/High background in my FID?
How do I replace the firmware (eprom) chips on the mother board of my 6890A GC?
What is the best way to check for Capillary Column bleed in my 6890 GC?
Can you provide us the information on Agilent GC Column Phase selection?
How to recover the GC column catalog inventory while relaoding the ChemStation software?
What is WARNING 101/102 error with 6890 GC?
How do I execute the CHECKOUT procedure for my 6890 Electron Capture Detector - ECD?
How do I execute the CHECKOUT procedure for my 6890 Flame Ionization Detector - FID?
What is the CHECKOUT procedure for 6890 NITROGEN PHOSPHORUS DETECTOR
What is the CHECKOUT procedure for TCD (THERMAL CONDUCTIVITY DETECTOR)
How do I execute the CHECKOUT procedure for my 6890 uECD (Micro Electron Capture Detector)
How to troubleshoot peak shape problems?
How to choose right column for my GC analysis?
Where can I find the instructions to install Agilent FlipTop Inlet Sealing System?
I've noticed an interesting phenomenon when running a diesel standard on my tandem PID/FID. The hydrocarbons that elute after C16 are starting to significantly decrease and also tail very badly. What causes this?
What is the common Cable Diagrams for Connecting 6890N GC Mass Selective Detector, GC ChemStation & GC Automatic Liquid Sampler?
How to set Network Parameters (LAN) for 6890N GC?
My 6890 GC displays Fault: 259 or 260, Detector bd not the same as module. What could be the problem?
My 6890 GC displays Fault 280 --284, Front/Back Inlet /Detector- Pneu Aux read/write failure. What could be the problem?
My 6890 GC displays Fault 259 or 260, Detector bd not the same as module. What could be the problem?
My 6890 GC displays Fault 250 --258' Wrong /Invalid Inlet-Detector- Aux Module. What could be the problem?
My 6890 GC displays Fault 245 --249, F/B det- F/B inlet- Pres Aux Module: obsolete EEPROM. What could be the problem?
My 6890 GC displays Fault 242/243/244, Pneumatics aux module invalid constants. What could be the problem?
My 6890 GC displays Fault 237 - 241, referring No /Faulty Line interrupt- Mux ADX- Line sense reading Thermal shutdown. What could be the problem?
What is the procedure for 6850 Gas Chromatograph Split/Splitless Inlet Maintenance?
Do you have a tool to fix the ferrule to capillary column properly before fixing the column to split/splitless inlet?
How do you initiate a Column Compensation Run On A 6890 GC using GC Keyboard?
What are the Performance Specification for 35900E A/D Converter?
Is my 6850 GC compatible with the Agilent CTC GC PAL and Combi PAL Autosamplers?
What are the minimum firmware requirements for upgrade of my 6850 GC with a CTC PAL Autosampler?
What Gas Chromatographs support RTL?
What is the maximum injection volume of Combi PAL?
How does the Agilent Nitrogen Chemiluminescence Detector (255 NCD) function?
What needs to be done to take care of DST changes on upgraded installations to ChemStation B.02.01 and higher?
What needs to be done to take care of DST changes on ChemStation B.01.0x, with or without ChemStore B.03.02?
How can the Agilent Lab Monitor Diagnostic software help me maintain my 6890 / 7890 Gas Chromatograph?
Major differences between basic and advanced Agilent Lab Monitor and Diagnostic Software for 6890 / 6850 GC
6890 GC Agilent Sulfur Chemiluminescence Detector and Nitrogen Chemiluminescence Detector Specifications
What is Agilent Intelligent Services?
Agilent Intelligent Repair Overview - 6890 GC
Agilent Intelligent Connections Overview - 6890 GC
Agilent Intelligent Connections Plus Overview - 6890 GC
Who determines the access level to our systems while using the Agilent Intelligent Services?
Security of Agilent Intelligent Services - 6890 GC
How does Agilent Technologies compare the performance of its columns relative to competitors, and what type of tests are carried out?
How can I increase the sample throughput and analysis speed using megabore columns?
What is the significance of N, the number of theoretical plates for a given column, and why is it important?
What are the Quality Control Specifications that are available for GC Capillary Columns?
Does Combi PAL has SPME Capability?
