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Agilent Technologies Intuvo 9000 Series Maintaining

Agilent Technologies Intuvo 9000 Series Maintaining

Gas chromatograph
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Agilent Intuvo 9000 
Gas Chromatograph
Maintaining Your GC
Agilent Technologies

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Summary of Contents for Agilent Technologies Intuvo 9000 Series

  • Page 1 Agilent Intuvo 9000  Gas Chromatograph Maintaining Your GC Agilent Technologies...
  • Page 2 Further, to the without prior agreement and written hazard. It calls attention to an maximum extent permitted by appli- consent from Agilent Technologies, Inc. as operating procedure, practice, cable law, Agilent disclaims all war- governed by United States and...

  • Page 3: Table Of Contents

    Contents 1 About Maintaining the GC Overview of Maintenance Tools and Materials Required for Maintenance Preparing for Maintenance Bus Temperature Indicator Viewing Status Data Safety Information Consumables and Parts for General GC Maintenance 2 Maintaining Columns and Bus Components Consumables and Replacement Parts Part Views of Intuvo Bus Components Handling Column and Bus Components Replace an Intuvo 9000 GC Nickel or Polyimide Gasket...
  • Page 4 To Change the Liner and O-Ring on the Split/Splitless Inlet To Bakeout Contaminants from the Split/Splitless Inlet 4 Maintaining the MMI Consumables and Parts for the MMI Exploded Parts View of the MMI To Change the Septum on the MMI To Clean the Septum Seat in the Insert Assembly of the MMI To Change the Liner and O-Ring on the MMI To Bakeout Contaminants from the MMI...
  • Page 5 8 Maintaining the ECD Important Safety Information About the ECD Consumables and Parts for the ECD Exploded Parts View of the ECD To Bakeout the ECD 9 Maintaining the NPD Consumables and Parts for the NPD Exploded Parts View of the NPD To Replace the NPD Bead Assembly To Maintain the NPD Collector, Ceramic Insulators, and Jet To Check the NPD Leakage Current...
  • Page 6 Maintaining Your GC...
  • Page 7 Bus Temperature Indicator Viewing Status Data Safety Information Consumables and Parts for General GC Maintenance This section provides an overview of the maintenance procedures included in this document. It also lists the tools and safety information needed for routine maintenance. Agilent Technologies...

  • Page 8: About Maintaining The Gc

    About Maintaining the GC Overview of Maintenance This manual details the routine tasks needed to maintain the 9000 Series Gas Chromatograph (GC). The procedures assume a basic knowledge of tool use and of GC operation. Readers are, for example, expected to know how to: •...

  • Page 9: Tools And Materials Required For Maintenance

    About Maintaining the GC Tools and Materials Required for Maintenance Table 1 lists the tools needed for most GC maintenance procedures. The specific tools required to perform a maintenance procedure are listed in step 1 of the procedure. Table 1 Tools and materials for GC maintenance Common tools Wrench, angled, septum nut (19251-00100)

  • Page 10: Preparing For Maintenance

    About Maintaining the GC Preparing for Maintenance Before routine maintenance procedures, the GC must be made ready. This process can include: • Setting low temperatures to avoid burns and other injuries • Setting reduced flows to avoid safety hazards and to prevent damage to the instrument •...

  • Page 11: Bus Temperature Indicator

    About Maintaining the GC Bus Temperature Indicator The bus can be hot even when the installed column is cool. Make WA RNING sure the bus is cool prior to handling bus components. Failure to do so may result in personal injury. The bus temperature indicator provides a quick status display of the temperature of the Intuvo bus.

  • Page 12: Viewing Status Data

    About Maintaining the GC Viewing Status Data The GC can display signal and other data that can be very useful during maintenance, for example, by displaying current temperatures or flows. Add an item to the GC status listing as follows: Select the desired item from the drop-down list, then touch Add.

  • Page 13: Safety Information

    About Maintaining the GC Safety Information Before performing a maintenance task, read the important safety and regulatory information found in the Intuvo 9000 GC Safety Manual. Maintaining Your GC...

  • Page 14: Consumables And Parts For General Gc Maintenance

    About Maintaining the GC Consumables and Parts for General GC Maintenance Table 2 lists consumable parts for general GC maintenance. Table 2 Consumables and parts for general GC maintenance Description Part number Fittings and hardware Fittings kit, 1/8-in. brass, 20/pk 5080-8750 Plug, 1/8-in.
  • Page 15 About Maintaining the GC Table 2 Consumables and parts for general GC maintenance (continued) Description Part number Gas Clean Filter Kits Intuvo Gas Clean filter kit CP17995 For additional general parts and filters, refer to the Agilent web site and the Agilent Parts Finder software. For additional information about choosing the correct gas line filters, see the GC, GC/MS, and ALS Site Preparation Guide and visit the Agilent web site.
  • Page 16 About Maintaining the GC Maintaining Your GC...

  • Page 17: Maintaining Columns And Bus Components

    Replace a Detector Tail (D2 Detectors) Replace a Swaged MS Tail Replace a D2 Flow Chip (Bus Jumper) Replace the Filter in the Split Vent Line This chapter describes how to remove and install Intuvo columns, chips, gaskets, and detector tails. Agilent Technologies...

  • Page 18: Consumables And Replacement Parts

    Maintaining Columns and Bus Components Consumables and Replacement Parts Table 3 below lists the Intuvo 9000 replacement parts for Guard chips, gaskets, compression bolts, and specialized Intuvo tools. Table 3 Intuvo 9000 replacement parts Description Part number Guard and Jumper Chips Split/Splitless Intuvo Guard chip (2/pk) G4587-60565 Split/Splitless Intuvo jumper chip (2/pk)
  • Page 19 Maintaining Columns and Bus Components Table 4 below lists replacement part numbers for inlet chips. If changing from the standard chip to the splitter chip, order the accessory kit. Table 4 Intuvo inlet chips Description Replacement Accessory kit  part number part number Intuvo Inlet Chip Connects the Guard chip to the...
  • Page 20 Maintaining Columns and Bus Components Table 5 Intuvo detector chips (continued) Description Replacement Accessory kit  part number part number Intuvo Mid Column Backflush to D2 Chip Connects the Guard chip to a G4588-60721 G7323A precolumn, then to an analytical column, and then to the D2 flow chip or MS detector tail.

  • Page 21: Part Views Of Intuvo Bus Components

    Maintaining Columns and Bus Components Part Views of Intuvo Bus Components Guard chip, multimode inlet Guard chip, split/splitless inlet Jumper chip, multimode inlet Jumper chip, split/splitless inlet Figure 1 Intuvo Guard chips and jumper chips 5190-9072 5190-9073 5190-9074 5190-9072 5190-9073 5190-9074 Polyimide gasket Nickel gasket...
  • Page 22 Maintaining Columns and Bus Components Intuvo compression Detector tail Compression bolt, bolt compression bolt guard chip Torque extension Torque driver, pre-set MMI sealing screw SSL sealing screw Torque driver kit Figure 3 Intuvo Compression bolts and torque driver Inlet chip (standard) Inlet splitter chip (accessory G7326A) Figure 4 Intuvo inlet chips Maintaining Your GC...
  • Page 23 Maintaining Columns and Bus Components Intuvo D1 Chip (standard) Intuvo D2-MS Chip (standard for systems configured for an MS) Intuvo D2 Flow Chip (Bus jumper) Figure 5 Single detector flow chips and D2 flow chip (bus jumper) Intuvo D1 Post Column Backflush Chip Intuvo D2/MS Post Column Backflush Chip (accessory G7324A) (accessory G7325A)

  • Page 24: Handling Column And Bus Components

    Maintaining Columns and Bus Components Handling Column and Bus Components The Intuvo 9000 GC does not use traditional ferrules and nuts for most column and flow path seals. In a traditional gas chromatography connection, the seal is made by deforming a soft ferrule around the periphery of a column or tube, with a second seal made between the ferrule and the fitting.

  • Page 25: Replace An Intuvo 9000 Gc Nickel Or Polyimide Gasket

    Maintaining Columns and Bus Components Replace an Intuvo 9000 GC Nickel or Polyimide Gasket Use Intuvo gaskets when replacing a column, detector chips, inlet chips, and detector tails. The gasket sits between the Intuvo 9000 GC inlet or detector chip and the GC column or other component.
  • Page 26 Maintaining Columns and Bus Components If needed, install any inlet or detector chips. These chips must be installed before installing the new gasket. (The inlet and detector flow chips provide the bottom sealing surface.) Flow chips installed Carefully remove the new gasket from its packaging. Inspect the gasket to be sure it is not deformed.
  • Page 27 Maintaining Columns and Bus Components Check that the gasket’s round lobes remain be flat, with no wrinkles, and are centered on top of the mating flow chip sealing surfaces. See the figure below. The gasket is ready for use. Continue with the maintenance task being performed.

  • Page 28: Replace A Column - Single Column Gcs

    Maintaining Columns and Bus Components Replace a Column – Single Column GCs This procedure applies to GCs using a single column. A single column is always installed in the right-side position. The inlet, detector, bus components, and column can be hot WA RNING enough to cause burns.
  • Page 29 Maintaining Columns and Bus Components Remove the two compression bolts and store for later use. Open the column clamps and remove the column. Use the Intuvo torque driver to open the four column clamps. Unplug the column Smart ID Key. Remove the column.
  • Page 30 Maintaining Columns and Bus Components Replace the gasket. See “Replace an Intuvo 9000 GC Nickel or Polyimide Gasket” on page 25. Maintaining Your GC...
  • Page 31 Maintaining Columns and Bus Components If the GC includes a left-side column connector heater, remove the column frame knock-out from the right (inner) column by twisting it back and forth until it breaks loose. Optional column connector Column connector heater, left side heater, right side Place the column.
  • Page 32 Maintaining Columns and Bus Components Tilt the column up so the click and run connectors mate into the right-side bus fitting. Grasp the column ring as shown in the figure and insert the column click and run connectors into the bus fitting. The column connectors should rest flat on top of both gasket lobes, so that the flow chip, gasket, and column connector lobes all align concentrically.
  • Page 33 Maintaining Columns and Bus Components Install the compression bolts finger-tight. Check that the column connectors lie flat against the gasket and flow chips. If the compression bolts protrude from the bus fitting by more than about 1 thread, the column may not be properly seated.
  • Page 34 Maintaining Columns and Bus Components Check column placement and use the Intuvo torque driver to tighten the compression bolts. Tighten the compression bolts until you hear one click (approximately 1/4-turn). Secure the column. Do not tighten the column clamps until after the column connections are N O T E properly tightened with the Intuvo torque driver.
  • Page 35 Maintaining Columns and Bus Components If you did not use the GC maintenance wizard, use the GC touch screen to perform any necessary checks and to reset the maintenance counters. Store unused columns in accordance with the column manufacturer’s recommendations. Maintaining Your GC...

  • Page 36: Replace A Column - Two Column Gcs

    Maintaining Columns and Bus Components Replace a Column – Two Column GCs Replacing columns in a two-column GC is similar to replacing a column in a single-column GC, but requires a change to the column support ring for the right-side column. When using a flow chip designed for two columns, you must always have both columns installed to run the GC.
  • Page 37 Maintaining Columns and Bus Components The inlet, detector, bus components, and column can be hot WA RNING enough to cause burns. Cool heated zones to a safe handling temperature before continuing. Launch the GC maintenance wizard: Maintenance > Columns > Perform Maintenance >...
  • Page 38 Maintaining Columns and Bus Components If any columns are already installed, remove them. See “Replace a Column – Single Column GCs”. Install a new gasket for each column. See “Replace an Intuvo 9000 GC Nickel or Polyimide Gasket”. If present, remove any column compression bolts from the bus’s column click and run fittings.
  • Page 39 Maintaining Columns and Bus Components flow chip, gasket, and column connector lobes all align concentrically. See the figure below. Check column placement. The center hub of the column connector heater should fit in the slot in the column neck as shown below. Maintaining Your GC...
  • Page 40 Maintaining Columns and Bus Components Install the compression bolts finger-tight. Check that the column connectors lie flat against the gasket and flow chips. If the compression bolts protrude from the bus fitting by more than about 1 thread, the column may not be properly seated.
  • Page 41 Maintaining Columns and Bus Components Check column placement and tighten the compression bolts. Tighten the compression bolts until you hear one click (approximately 1/4-turn). Insert the right column’s Intuvo Smart ID Key into the lower USB connection along the right side of the oven. Install the left column.

  • Page 42: Replace The Intuvo Guard Chip

    Maintaining Columns and Bus Components Replace the Intuvo Guard Chip The Guard chip is a single-use, consumable part. Installation deforms part of the Guard chip to make a good seal, so that a mis-installed Guard chip cannot be re-used. The Guard chip cannot be cleaned or conditioned.
  • Page 43 Maintaining Columns and Bus Components If present, a G3969A Intuvo 9000 Transfer Line Interface Assembly will cover the access hole for the Guard chip compression bolt. Move the accessory away from the access hole. Slide forward the locking tab on the inlet insert assembly. Lift the insert assembly from the inlet body and gently move the transfer line out of the way.
  • Page 44 Maintaining Columns and Bus Components Loosen the sealing screw at the base of the inlet: • Split-splitless inlet: Use a 7/16-inch open-end wrench to loosen the sealing screw at the base of the inlet. • Multimode inlet: Use a 5/16-inch wrench on the inlet base and a 1/4-inch wrench to loosen the sealing screw at the base of the inlet.
  • Page 45 Maintaining Columns and Bus Components Use your finger to gently depress the front of the Guard chip heater and expose the Guard chip. Guard chip compression bolt Sealing screw Guard chip Sealing screw Guard chip heater Split/splitless inlet Multimode inlet Using the Intuvo torque driver, loosen the Guard chip compression bolt until there is a clear space between the bottom of the bolt and the little bus.
  • Page 46 Maintaining Columns and Bus Components Remove the Guard chip. Lift the right side connector from the pocket in the little bus, then pull the right side out of the GC. Remove the left side of the Guard chip from the inlet base. (For a multimode inlet, you need to carefully align the upright tube with the slot in the inlet body.) Maintaining Your GC...
  • Page 47 Maintaining Columns and Bus Components Install a new Guard chip. Figure 12 Guard chip orientation (split/splitless inlet shown) Place the Guard chip left end into the inlet base. For an MMI Guard chip, avoid touching the upright tube against the sides of the opening. Rotate the body of the Guard chip into the GC, lifting the Guard chip right end over the little bus and into the pocket.
  • Page 48 Maintaining Columns and Bus Components Tighten the inlet sealing screw. For MMI, use two wrenches. Guard chip compression bolt Inlet sealing screw Split/splitless Multimode Tighten the Guard chip compression bolt using the Intuvo torque driver until you hear one click. At this point, Agilent strongly recommends replacing the inlet liner and liner O-ring.

  • Page 49: Replace An Intuvo Inlet Chip

    Maintaining Columns and Bus Components Replace an Intuvo Inlet Chip Figure 13 shows the Intuvo major bus components. Guard chip Clips Smart ID key connectors: Inlet Detector Intuvo gasket Inlet chip Detector chip Intuvo gasket Figure 13 Intuvo bus components The inlet and detector flow chips (see Figure 13) must be...
  • Page 50 Maintaining Columns and Bus Components Prepare for maintenance. On the GC touch display, go to Maintenance > Instrument > Perform Maintenance > Maintenance Mode> Start Maintenance. Remove the Guard chip. See “Replace the Intuvo Guard Chip” on page 42. Remove each column and its gasket. See “Replace a Column –...

  • Page 51: Replace An Inlet Splitter Chip

    Maintaining Columns and Bus Components Replace an Inlet Splitter Chip This procedure applies to replacement of an existing inlet splitter flow chip accessory G7326A. Replacement of a midcolumn backflush chip is similar. Figure 14 shows the Intuvo major bus components. Clips Little bus Little bus...
  • Page 52 Maintaining Columns and Bus Components The inlet, detector, bus, oven, and other accessories can be hot WA RNING enough to cause burns. Cool heated zones to a safe handling temperature before continuing. If needed wear heat-resistant gloves. Prepare for maintenance. On the GC touch display, go to Maintenance >...
  • Page 53 Maintaining Columns and Bus Components connections into their fittings. The connection for the Guard chip should fit into the pocket in the little bus. Slide the little bus back into place, and check that each splitter chip connector is seated in its fitting. Secure the little bus using its mounting screw.

  • Page 54: Replacing An Intuvo Detector Chip

    Maintaining Columns and Bus Components Replacing an Intuvo Detector Chip This procedure applies to all detector flow chips. Figure 15 shows the Intuvo major bus components. Guard chip Clips Smart ID key connectors: Inlet Detector Intuvo gasket Inlet chip Detector chip Intuvo gasket Figure 15 Intuvo bus components This procedure assumes that a detector is already installed and...
  • Page 55 Maintaining Columns and Bus Components Prepare the GC for maintenance. On the GC touch display, go to Maintenance > Instrument > Perform Maintenance > Maintenance Mode > Start Maintenance. If replacing a detector flow chip for an MS, you must also prepare C A U T I O N and vent the MS.
  • Page 56 Maintaining Columns and Bus Components Remove the ALS support bracket. Remove the compression bolts in the bus detector fitting. (D1 configuration shown.) The D1 fitting only needs a compression bolt for installed components. N O T E The left position is for a detector tail, and the right position is for a PSD. If there is only a detector tail installed, you can leave out the PSD compression bolt and save it as a spare.
  • Page 57 Maintaining Columns and Bus Components If your GC does not include hardware for a D1 detector, for example, when replacing a D2-MS Chip (G4581-60033) or a D2/MS Post Column Backflush Chip (G4588-60322, G7325A), skip to step Loosen the two thumbscrews that secure the detector module.
  • Page 58 Maintaining Columns and Bus Components • If the detector does not pivot up, completely loosen the rear-most thumb screw on the detector module assembly. If a PSD is present, remove its connector from the D1 bus fitting. Remove the old gaskets using tweezers. Use a Intuvo torque driver to open the clips that hold the detector chip to the bus.
  • Page 59 Maintaining Columns and Bus Components round sealing surfaces rest flat on the click and run connectors. See “Replace an Intuvo 9000 GC Nickel or Polyimide Gasket” on page 25. If your GC does not include hardware for a D1 detector, for example, when replacing a D2-MS Chip (G4581-60033) or a D2/MS Post Column Backflush Chip (G4588-60322, G7325A), skip to...
  • Page 60 Maintaining Columns and Bus Components mating surfaces of the gasket and detector flow chip. If misaligned, lift the detector and retry. Once the detector tail is correctly seated, slide the detector back until it stops (about 3 mm). If a PSD is present, install its connector into the D1 bus fitting.
  • Page 61 Maintaining Columns and Bus Components If present, reinstall the D2 jumper bus or MS detector tail. Reinstall the bus door. Close the GC front door. Reinstall the ALS support bracket. Reinstall the GC covers. When installing the GC top cover, start with the front two screws.

  • Page 62: Replace A Detector Tail (D1 Detectors)

    Maintaining Columns and Bus Components Replace a Detector Tail (D1 Detectors) Gather the following materials: • New detector tail • Intuvo torque wrench • T-20 Torx driver • New gasket (polyimide 5190-9072, or nickel 5190-9073 for temperatures > 350 °C) Launch the GC maintenance wizard (Figure 16) and follow...
  • Page 63 Maintaining Columns and Bus Components Cool all heated zones to < 40 °C. After everything cools, turn off detector gas flows and set a low column purge flow. If using a flammable carrier gas, instead turn it off. Remove the top cover, inlet cover, detector cover, and split vent trap cover.
  • Page 64 Maintaining Columns and Bus Components Remove the left side compression bolt from the D1 bus fitting. Open the GC front door. Open the bus door 90 °, then lift and remove. Remove the left side compression bolt from the bus D1 fitting.
  • Page 65 Maintaining Columns and Bus Components Using the black handle, slide the detector module forward until it stops (about 3 mm). Locked position Unlocked (forward) position Raise the detector module and secure in place using the S-hook. Maintaining Your GC...
  • Page 66 Maintaining Columns and Bus Components Replace the gasket. Remove the old gasket using tweezers. Press the new gasket flat against the bus so the round sealing surfaces rest flat on the detector bus click and run connectors. Open the detector tail housing and remove the compression bolt.
  • Page 67 Maintaining Columns and Bus Components Free the ferrule from the fitting. Use a T-20 Torx driver to press against the ferrule through the open hole shown. This may require some force. Open the clips that hold the tail in the housing. Remove the detector tail.
  • Page 68 Maintaining Columns and Bus Components When the tail is fully rotated, slide it out from the detector tail housing. Normally it is not necessary to loosen the detector tail block (which protrudes below the detector insulation cup). If the tail block was loosened during tail removal, it is important to be sure it is properly seated.
  • Page 69 Maintaining Columns and Bus Components Install the new detector tail. Slide the detector tail into the detector tail housing, then rotate it up and into place. Close the clips to hold it in place. Install and tighten the compression bolt until you hear one click.
  • Page 70 Maintaining Columns and Bus Components Release the safety catch and set the detector fully down. While holding the handle, press the clip and lower the detector. As you lower the detector, check that the detector tail click and run connection fits into the detector bus fitting.
  • Page 71 Maintaining Columns and Bus Components Reinstall the ALS support bracket. Reinstall the GC covers. When installing the GC top cover, start with the front two screws. If you performed this procedure using the GC’s maintenance feature, then the GC will perform checks at the appropriate times, and will automatically reset the maintenance counters.

  • Page 72: Replace A Detector Tail (D2 Detectors)

    Maintaining Columns and Bus Components Replace a Detector Tail (D2 Detectors) Gather the following materials: • New detector tail • Intuvo torque wrench • T-20 Torx driver • New gasket (polyimide 5190-9072, or nickel 5190-9073 for temperatures > 350 °C) Launch the GC maintenance wizard (Figure 17) and follow...
  • Page 73 Maintaining Columns and Bus Components Lower the D2 front panel. Loosen the two thumbscrews securing the D2 top cover assembly to the D2, and remove the D2 top cover assembly. D2 Top cover assembly Remove the D2 bus door. Remove the detector tail’s compression bolt in the bus detector fitting.
  • Page 74 Maintaining Columns and Bus Components Loosen the two thumbscrews that secure the detector module. (FID shown below. Other detectors are similar.) Completely loosen Should already be loose Using the black handle, slide the detector module forward until it stops (about 3 mm). Locked position Unlocked (forward) position...
  • Page 75 Maintaining Columns and Bus Components Raise the detector module and secure in place using the S-hook. Replace the gasket. Remove the old gasket using tweezers. Press the new gasket flat against the bus so the round sealing surfaces rest flat on the detector bus click and run connectors.
  • Page 76 Maintaining Columns and Bus Components Open the detector tail housing and remove the compression bolt. Free the ferrule from the fitting. Use a T-20 Torx driver to press against the ferrule through the open hole shown. This may require some force. Maintaining Your GC...
  • Page 77 Maintaining Columns and Bus Components Open the clips that hold the tail in the housing. Remove the detector tail. Rotate the tail 90 degrees out of the housing. The tail should move freely. If you feel resistance, again use a T-20 Torx driver to side-load the ferrule. Rotating the detector tail if the ferrule sticks can damage the tail.
  • Page 78 Maintaining Columns and Bus Components be sure it is properly seated. Tighten the small set screw first, then the larger set screw. Large set Small set screw screw Install the new detector tail. Slide the detector tail into the detector tail housing, then rotate it up and into place.
  • Page 79 Maintaining Columns and Bus Components Reassemble the detector. Close and secure the tail housing. While holding the detector by its handle, unclip the S hook. Store the S hook in its clips. Gently lower the detector until it rests on the safety catch. Release the safety catch and set the detector fully down.
  • Page 80 Maintaining Columns and Bus Components gasket and detector flow chip. If misaligned, lift the detector and retry. Once the detector tail is correctly seated, slide the detector back until it stops (about 3 mm). Tighten the thumbscrews. Check that the sealing surface of the detector tail is centered over the mating surfaces of the gasket and detector flow chip.
  • Page 81 Maintaining Columns and Bus Components times, and will automatically reset the maintenance counters. If you did not use the GC maintenance wizard, use the GC touch screen to perform any necessary checks and to reset the maintenance counters. Maintaining Your GC...

  • Page 82: Replace A Swaged Ms Tail

    Maintaining Columns and Bus Components Replace a Swaged MS Tail When connected to a mass selective detector, the Intuvo GC uses a short transfer line, the swaged MS tail, to transfer the sample from the GC detector chip to the MS. Refer to the documentation for the connected MSD for the latest procedure.

  • Page 83: Replace A D2 Flow Chip (Bus Jumper)

    Maintaining Columns and Bus Components Replace a D2 Flow Chip (Bus Jumper) Gather the following: • New gaskets • New D2 Flow chip (bus jumper) Prepare for maintenance. On the GC touch display, go to Maintenance > Instrument > Perform Maintenance > Maintenance Mode>...
  • Page 84 Maintaining Columns and Bus Components Loosen the two thumbscrews securing the D2 top cover assembly to the D2, and remove the D2 top cover assembly. D2 Top cover assembly Remove the Intuvo compression bolt from the detector side of the D2 jumper chip and from the GC side. D2 Flow Chip (bus jumper) Gasket D2 Bus...
  • Page 85 Maintaining Columns and Bus Components Loosen the two thumbscrews that secure the detector module. (FID shown below. Other detectors are similar.) Completely loosen Should already be loose Using the black handle, slide the detector module forward until it stops (about 3 mm). Locked position Unlocked (forward) position...
  • Page 86 Maintaining Columns and Bus Components Raise the detector module and secure in place using the S-hook. Use tweezers to remove the gasket from the detector tail fitting. Rotate the retaining clips to free the D2 flow chip. Grasp the old D2 flow chip in the D2 bus side, lift, and remove it.
  • Page 87 Maintaining Columns and Bus Components detector bus fitting. The sealing surface of the tail connector should align over the mating surfaces of the gasket and detector flow chip. If misaligned, lift the detector and retry. Once the detector tail is correctly seated, slide the detector back until it stops (about 3 mm).

  • Page 88: Replace The Filter In The Split Vent Line

    Maintaining Columns and Bus Components Replace the Filter in the Split Vent Line Gather the following: • New filter cartridge. Prepare for maintenance. • Cool down any hot, exposed component that is on top of the GC that you might contact when accessing the split vent filter.
  • Page 89 Maintaining Columns and Bus Components Loosen the large knurled nut that secures the filter cartridge in place. Filter cartridge Knurled nut Remove the old filter cartridge and insert a new one. The flared (wider) end of the filter faces forward; the narrower end faces towards the threaded exhaust fitting.
  • Page 90 Maintaining Columns and Bus Components Maintaining Your GC...
  • Page 91 To Change the Septum on the Split/Splitless Inlet To Clean the Septum Seat in the Insert Assembly of the Split/Splitless Inlet To Change the Liner and O-Ring on the Split/Splitless Inlet To Bakeout Contaminants from the Split/Splitless Inlet Agilent Technologies...

  • Page 92: Maintaining The Split/Splitless Inlet

    Maintaining the Split/Splitless Inlet Consumables and Parts for the Split/Splitless Inlet See the Agilent catalog for consumables and supplies for a more complete listing, or visit the Agilent Web site for the latest information (www.agilent.com/chem/supplies). Table 6 Split, splitless, direct, and direct connect inlet liners \<space>...
  • Page 93 Maintaining the Split/Splitless Inlet Table 7 Other consumables and parts for the split/splitless inlet Description/quantity Part number 11-mm septum, high-temperature, low-bleed, 50/pk 5183-4757 11-mm septum, pre-pierced, long life, 50/pk 5183-4761 Merlin Microseal septum (high-pressure) 5182-3444 Merlin Microseal septum (30 psi) 5181-8815 Nonstick fluorocarbon liner O-ring (for temperatures up to 5188-5365...

  • Page 94: Exploded Parts View Of The Split/Splitless Inlet

    Maintaining the Split/Splitless Inlet Exploded Parts View of the Split/Splitless Inlet Septum retainer nut Merlin cap Septum Merlin Microseal Insert assembly O-ring Liner Split vent line Split/splitless inlet body Maintaining Your GC...

  • Page 95: To Change The Septum On The Split/Splitless Inlet

    Maintaining the Split/Splitless Inlet To Change the Septum on the Split/Splitless Inlet Gather the following: • Replacement septum. (See “Consumables and Parts for the Split/Splitless Inlet” on page 92.) • Wrench, hex for changing septum • 0- or 00-grade steel wool (optional) •...
  • Page 96 Maintaining the Split/Splitless Inlet Install the septum retainer nut or Merlin cap and finger-tighten. Tighten the septum retainer nut until the C-ring is about 1 mm above the nut. Overtightening the septum nut can cause contamination. C A U T I O N 1 mm Restore the analytical method.

  • Page 97: To Clean The Septum Seat In The Insert Assembly Of The Split/Splitless Inlet

    Maintaining the Split/Splitless Inlet To Clean the Septum Seat in the Insert Assembly of the Split/Splitless Inlet Gather the following: • Replacement septum (See “Consumables and Parts for the Split/Splitless Inlet” on page 92.) • Wrench, hex for changing septum •...

  • Page 98: Inlet

    Maintaining the Split/Splitless Inlet Scrub the residue from the retainer nut and septum holder with a small piece of rolled-up steel wool and tweezers. Do not do this over the inlet. Use compressed air or nitrogen to blow away the pieces of steel wool and septum.

  • Page 99: To Change The Liner And O-Ring On The Split/Splitless Inlet

    Maintaining the Split/Splitless Inlet To Change the Liner and O-Ring on the Split/Splitless Inlet Verify that a Guard chip or jumper chip is installed. If not install it N O T E before installing the liner. Gather the following: • Replacement O-ring (See “Consumables and Parts for the Split/Splitless Inlet”...
  • Page 100 Maintaining the Split/Splitless Inlet Loosen the O-ring from the sealing surface with tweezers. Grasp the liner with tweezers and pull it out. Clean the inlet if there is visible or suspected contamination. Clean O-ring residue from sealing surface. If installing an Agilent Ultra Inert liner, the new liner includes a pre-installed O-ring.
  • Page 101 Maintaining the Split/Splitless Inlet For other liner types, place an O-ring onto the liner and place the liner into the inlet. Wear clean, lint-free gloves to prevent contamination of parts with C A U T I O N dirt and skin oils. Slide a new O-ring onto the replacement liner.
  • Page 102 Maintaining the Split/Splitless Inlet Turn on the inlet. Allow the inlet and column to purge with carrier gas for 15 minutes before heating the inlet or the column oven. Bakeout contaminants. (See “To Bakeout Contaminants from the Split/Splitless Inlet” on page 103.) Restore the analytical method.

  • Page 103: To Bakeout Contaminants From The Split/Splitless Inlet

    Maintaining the Split/Splitless Inlet To Bakeout Contaminants from the Split/Splitless Inlet It is recommended to perform an inlet bakeout with the column installed. Put the inlet into split mode. Set the column flow to the normal operating value. Set the inlet split vent flow to 200 mL/min. Purge the column with carrier flow for at least 10 minutes before heating the oven.
  • Page 104 Maintaining the Split/Splitless Inlet Maintaining Your GC...
  • Page 105 Exploded Parts View of the MMI To Change the Septum on the MMI To Clean the Septum Seat in the Insert Assembly of the MMI To Change the Liner and O-Ring on the MMI To Bakeout Contaminants from the MMI Agilent Technologies...

  • Page 106: Maintaining The Mmi

    Maintaining the MMI Consumables and Parts for the MMI See the Agilent catalog for consumables and supplies for a more complete listing, or visit the Agilent Web site for the latest information (www.agilent.com/chem/supplies). Table 8 Split, splitless, direct, and direct connect inlet liners Mode Description Deactivated...
  • Page 107 Maintaining the MMI Table 9 Other consumables and parts for the multimode inlet (MMI) Description/quantity Part number Nonstick fluorocarbon liner O-ring (for temperatures up to 5188-5365 350 °C), 10/pk Graphite O-ring for split liner (for temperatures above 5180-4168 350 °C), 10/pk Graphite O-ring for splitless liner (for temperatures above 5180-4173 350 °C), 10/pk...

  • Page 108: Exploded Parts View Of The Mmi

    Maintaining the MMI Exploded Parts View of the MMI Septum retainer nut Merlin cap Septum Merlin Microseal Insert assembly O-ring Liner Split vent line Cryo Inlet base Maintaining Your GC...

  • Page 109: To Change The Septum On The Mmi

    Maintaining the MMI To Change the Septum on the MMI Gather the following: • Replacement septum. (See “Consumables and Parts for the MMI” on page 106.) • Wrench, hex for changing septum • 0- or 00-grade steel wool (optional) • Tweezers •...
  • Page 110 Maintaining the MMI Install the septum retainer nut or Merlin cap and finger-tighten. Tighten the septum retainer nut until the C-ring is about 1 mm above the nut. Overtightening the septum nut can cause contamination. C A U T I O N 1 mm Restore the analytical method.

  • Page 111: To Clean The Septum Seat In The Insert Assembly Of The Mmi

    Maintaining the MMI To Clean the Septum Seat in the Insert Assembly of the MMI Gather the following: • Replacement septum (See “Consumables and Parts for the MMI” on page 106.) • Wrench, hex for changing septum • 0- or 00-grade steel wool (optional) •...
  • Page 112 Maintaining the MMI Use compressed air or nitrogen to blow away the pieces of steel wool and septum. Line up the tab on the bottom of the septum assembly with the slot on the insert assembly and push down to connect. Slide the locking tab to the left.

  • Page 113: To Change The Liner And O-Ring On The Mmi

    Maintaining the MMI To Change the Liner and O-Ring on the MMI Gather the following: • Replacement O-ring (See “Consumables and Parts for the MMI” on page 106.) • Replacement liner • Tweezers • Wrench, hex for changing septum • Lint-free gloves Launch the GC maintenance wizard: Maintenance >...
  • Page 114 Maintaining the MMI Loosen the O-ring from the sealing surface with tweezers. Grasp the liner with tweezers and pull it out. Clean the inlet if there is visible or suspected contamination. Clean O-ring residue from sealing surface. If installing an Agilent Ultra Inert liner, the new liner includes a pre-installed O-ring.
  • Page 115 Maintaining the MMI For other liner types, place an O-ring onto the liner and place the liner into the inlet. Wear clean, lint-free gloves to prevent contamination of parts with C A U T I O N dirt and skin oils. Slide a new O-ring onto the replacement liner.
  • Page 116 Maintaining the MMI Turn on the inlet. Allow the inlet and column to purge with carrier gas for 15 minutes before heating the inlet or the column oven. Bakeout contaminants. (See “To Bakeout Contaminants from the MMI” on page 117.) Restore the analytical method.

  • Page 117: To Bakeout Contaminants From The Mmi

    Maintaining the MMI To Bakeout Contaminants from the MMI It is recommended to perform an inlet bakeout with the column installed. Put the inlet into split mode. Set the column flow to the normal operating value. Set the inlet split vent flow to 200 mL/min. Purge the column with carrier flow for at least 10 minutes before heating the oven.
  • Page 118 Maintaining the MMI Maintaining Your GC...

  • Page 119: Maintaining The Fid

    Exploded Parts Views of the FID To Replace an FID Jet To Perform Maintenance on the FID Collector Assembly To Check the FID Leakage Current To Check the FID Baseline To Install the Optional FID Vent Chimney To Bakeout the FID Agilent Technologies...

  • Page 120: Consumables And Parts For The Fid

    Maintaining the FID Consumables and Parts for the FID See the Agilent catalog for consumables and supplies for a more complete listing, or visit the Agilent Web site for the latest information (www.agilent.com/chem/supplies). Table 10 FID parts and subassemblies Description Part number/quantity Screw, M4 ×...

  • Page 121: Exploded Parts Views Of The Fid

    Maintaining the FID Exploded Parts Views of the FID FID Vent chimney 25-mm screws Collector assembly Gasket Intuvo FID-TCD Tail Maintaining Your GC...
  • Page 122 Maintaining the FID Collector nut Spring washer 25-mm screws Ignitor (glow plug) Ignitor assembly with O-ring Collector Upper collector assembly insulator Collector body Spanner nut Ignitor cable (collector) assembly Collector mount Lower collector insulator Collector housing Gasket Maintaining Your GC...

  • Page 123: To Replace The Fid Collector Assembly

    Maintaining the FID To Replace the FID Collector Assembly Gather the following: • New FID collector assembly. (See “Consumables and Parts for the FID” on page 120.) • Intuvo torque driver • T-20 Torx screwdriver • T-10 Torx screwdriver • 1/4-inch nut driver •...
  • Page 124 Maintaining the FID Remove the three screws holding the collector assembly to the mounting pallet. This step exposes the interconnect spring. Be careful not to touch C A U T I O N or disfigure the spring while working on the FID. Any dirt or bending will reduce the sensitivity of your detector.
  • Page 125 Maintaining the FID Exit maintenance. On the GC touch display, touch Finished. (If needed, go to Maintenance > Instrument > Perform Maintenance > Maintenance Mode > Finish.). Verify assembly: Check the FID leakage current. (See “To Check the FID Leakage Current” on page 137.) Check the FID baseline.

  • Page 126: To Replace An Fid Jet

    Maintaining the FID To Replace an FID Jet Gather the following: • Replacement jet • T-20 Torx screwdriver • 1/4-inch nut driver • Tweezers • Compressed, filtered, dry air or nitrogen • Solvent that will clean the type of deposits in your detector •...
  • Page 127 Maintaining the FID Locate the jet inside the housing. Handle the clean or new jet only with tweezers, or wear gloves. C A U T I O N Loosen the jet, then lift it out of the housing with tweezers. Interconnector spring Clean the detector base cavity using solvent, a swab, and compressed air or nitrogen.
  • Page 128 Maintaining the FID Install the collector assembly. (See “To Replace the FID Collector Assembly” on page 123.) Exit maintenance. Touch Finished. (If needed, go to Maintenance > Detector > Perform Maintenance > Replace FID Jet > Finished). Reset the jet counter. See the Operation Manual. Establish a flow of carrier gas and purge as recommended by the column manufacturer.

  • Page 129: To Perform Maintenance On The Fid Collector Assembly

    Maintaining the FID To Perform Maintenance on the FID Collector Assembly Perform only the steps and gather only the parts that apply to the desired N O T E maintenance task(s). Gather the following: • Replacement ignitor assembly (See “Consumables and Parts for the FID”...
  • Page 130 Maintaining the FID Remove the FID ignitor. Disconnect the ignitor cable assembly. Loosen the ignitor with a wrench. Turn the nut counterclockwise by hand. Remove the ignitor and copper washer. If replacing only the FID ignitor assembly with copper washer, skip to step 16 for assembly.
  • Page 131 Maintaining the FID This step exposes the interconnect spring. Be careful not to touch C A U T I O N or disfigure the spring while working on the FID. Any dirt or bending will reduce the sensitivity of your detector. Remove the collector assembly.
  • Page 132 Maintaining the FID If only replacing the FID castle, skip to step 15 reassembly. Remove the collector and insulators. If needed, remove the collector and upper insulator from the FID housing. The lower insulator may come out with the collector, but often remains in the FID housing. Place the parts on a clean cloth.
  • Page 133 Maintaining the FID Remove the collector housing from the mount, if necessary. Use tweezers to remove the gasket from the bottom of the housing. The collector assembly is now completely disassembled. Reassemble as follows: Use tweezers to install a new gasket onto the housing, being sure that it lays flat on the brass surface.
  • Page 134 Maintaining the FID Insert the other insulator onto the top of the collector, with the flat surface facing towards the housing. Install the FID ignitor castle. Orient the castle so that the threaded hole for the ignitor faces toward the electronics. Insert the FID castle into the collector housing.
  • Page 135 Maintaining the FID Install the collector nut over the castle and tighten firmly. The seal should be airtight. Maintain the orientation of the ignitor hole with the base as shown below. Install the FID ignitor. Insert the ignitor and copper seal into the threaded hole of the castle.
  • Page 136 Maintaining the FID Lower the collector assembly into the housing. Insert the three screws and tighten (to 18 inch-pounds). Connect the ignitor extension cable. Exit maintenance mode. On the GC touch display, touch Finished. (If needed, go to Maintenance > Instrument > Perform Maintenance >...

  • Page 137: To Check The Fid Leakage Current

    Maintaining the FID To Check the FID Leakage Current Load the analytical method. • Make sure flows are acceptable for ignition. • Heat the detector to operating temperature or 300 °C. Turn off the FID flame. Show the detector output signal in Status. On the GC touch screen go to Home >...

  • Page 138: To Check The Fid Baseline

    Maintaining the FID To Check the FID Baseline Load the checkout method. Set the oven temperature to 35 °C. Show the detector output signal in Status. On the GC touch screen go to Home > Status listing > +Add. Select Detector 1 Output (or Detector 2 Output) from the drop-down list, then touch Add.

  • Page 139: To Install The Optional Fid Vent Chimney

    Maintaining the FID To Install the Optional FID Vent Chimney Be careful! The detector may be hot enough to cause burns. If the WA RNING detector is hot, wear heat-resistant gloves to protect your hands. Use if methylene chloride solvent or other sample produces C A U T I O N corrosive byproducts.

  • Page 140: To Bakeout The Fid

    Maintaining the FID To Bakeout the FID Set the detector temperature at 350 to 375 °C. Set normal operating flows. Light the FID flame. Set the oven temperature to 250 °C or 25 °C above the normal maximum operating temperature. Do not exceed the column’s temperature limit.

  • Page 141: Maintaining The Tcd

    Agilent Intuvo 9000 Gas Chromatograph Maintaining Your GC Maintaining the TCD Consumables and Parts for the TCD To Bakeout Contaminants from the TCD Agilent Technologies...

  • Page 142: Consumables And Parts For The Tcd

    Maintaining the TCD Consumables and Parts for the TCD See the Agilent catalog for consumables and supplies for a more complete listing, or visit the Agilent Web site for the latest information (www.agilent.com/chem/supplies). Table 12 TCD parts and subassemblies Description Part number/quantity Intuvo FID-TCD Tail G4583-60331...

  • Page 143: To Bakeout Contaminants From The Tcd

    Maintaining the TCD To Bakeout Contaminants from the TCD Turn off the TCD filament. Set the reference gas flow rate between 20 and 30 mL/min. Set the detector temperature to 375 °C. Hold at 375 °C for several hours. Load the analytical method. Allow the oven, inlet, and detector to equilibrate at operating temperature, then re-tighten the fittings.
  • Page 144 Maintaining the TCD Maintaining Your GC...

  • Page 145: Maintaining The Fpd

    Maintaining the FPD Consumables and Parts for the FPD Exploded Parts View of the FPD To Change the FPD Wavelength Filter To Remove the FPD Cover To Replace the FPD Ignitor To Install the FPD Cover Cleaning the FPD Brazement Agilent Technologies...

  • Page 146: Consumables And Parts For The Fpd

    Maintaining the FPD Consumables and Parts for the FPD See the Agilent catalog for consumables and supplies for a more complete listing, or visit the Agilent Web site for the latest information (www.agilent.com/chem/supplies). Table 13 FPD supplies Description Part number/quantity Sulfur filter 1000-1437 Sulfur filter spacer...

  • Page 147: Exploded Parts View Of The Fpd

    Maintaining the FPD Exploded Parts View of the FPD Single wavelength cover Filter Spacer (for sulfur filter) Ignitor (glow plug) Spring Collar Screw PMT assembly Ignitor cable assembly Column ferrule Adapter ferrule Intuvo FPD Tail Maintaining Your GC...

  • Page 148: To Change The Fpd + Wavelength Filter

    Maintaining the FPD To Change the FPD Wavelength Filter Do not touch the filter with your bare hands. For optimum C A U T I O N performance and to avoid scratches, use lint-free gloves for assembling and inserting the filter into the assembly. Gather the following: •...
  • Page 149 Maintaining the FPD The photomultiplier tube (PMT) is extremely sensitive to light. C A U T I O N Always turn off the electrometer (which turns off the high voltage to the PMT) before removing the PMT housing or opening the emissions chamber.
  • Page 150 Maintaining the FPD Clean the new filter with lens tissue. Filters are designed for the light of the flame to pass through in a C A U T I O N specific direction. The triangle (on the edge of the phosphorus filter) and the arrow (on the edge of the sulfur filter) should face away from the flame and toward the PMT.

  • Page 151: To Remove The Fpd Cover

    Maintaining the FPD To Remove the FPD Cover Gather the following: • T-20 Torx screwdriver Prepare for maintenance. On the GC touch display, go to Maintenance > Instrument > Perform Maintenance > Maintenance Mode> Start Maintenance. Wait for the GC to become ready. When turning off the GC, first turn off the flame to prevent C A U T I O N condensation from dripping into the jet and column.
  • Page 152 Maintaining the FPD For a single wavelength FPD, remove the two screws at the bottom left of the cover. Lift the cover off the detector. Maintaining Your GC...

  • Page 153: To Replace The Fpd + Ignitor

    Maintaining the FPD To Replace the FPD Ignitor Gather the following: • Ignitor replacement kit. (See “Consumables and Parts for +” the FPD on page 146.) • Torx screwdrivers, T-20 and T-10 • 5/16-inch nut driver (or wrench) Prepare for maintenance. Maintenance > Instrument > Perform Maintenance >...
  • Page 154 Maintaining the FPD Install the new ignitor assembly and tighten with the nut driver. Do not overtighten. (If the ignitor comes with a copper washer, discard the copper washer.) Replace the ignitor collet and cable assembly and tighten the screw. Align the collet set screw as shown. Do not let the collet screw touch metal parts, such as the emission block or PMT bracket (dual wavelength detector).

  • Page 155: To Install The Fpd + Cover

    Maintaining the FPD To Install the FPD Cover Gather the following: • T-20 Torx screwdriver Install the cover. Single-wavelength detector: Start the two screws on the right side of the cover. Start and tighten the screws at the base on the left side. Tighten the screws on the right side.

  • Page 156: Cleaning The Fpd + Brazement

    Maintaining the FPD Cleaning the FPD Brazement The brazement uses an inert coating layer. Abrasives may scratch this layer. Hard C A U T I O N scrubbing can scratch this layer. Solutions or soaps with a pH > 8 can also damage this layer.
  • Page 157 To Bakeout the ECD This section describes the routine maintenance tasks for the Electron Capture Detector (ECD). For important regulatory and safety information for this detector, refer to the general information booklet and CD provided with the detector. Agilent Technologies...

  • Page 158: Maintaining The Ecd

    Maintaining the ECD Important Safety Information About the ECD The ECD contains a cell plated with Ni, a radioactive isotope. The beta particles released at the energy level in the detector have little penetrating power—the surface layer of the skin or a few sheets of paper will stop most of them—but they may be hazardous if the isotope is ingested or inhaled.
  • Page 159 (including Appendix B), or the applicable state regulation. For other countries, consult with the appropriate agency for equivalent requirements. Agilent Technologies recommends a vent line internal diameter of 6 mm (1/4-inch) or greater. With a line of this diameter, the length is not critical.
  • Page 160 Maintaining the ECD To prevent possible hazardous contamination of the area with C A U T I O N radioactive material, the detector exhaust vent always must be connected to a fume hood or otherwise vented in compliance with the latest revision of 10 CFR Part 20, or with state regulations with which the Nuclear Regulatory Commission has entered into an agreement (USA only).

  • Page 161: Consumables And Parts For The Ecd

    Maintaining the ECD Consumables and Parts for the ECD See the Agilent catalog for consumables and supplies for a more complete listing, or visit the Agilent Web site for the latest information (www.agilent.com/chem/supplies). Table 14 ECD consumables and parts Description Part number/quantity ECD wipe test kit 18713-60050...

  • Page 162: Exploded Parts View Of The Ecd

    Maintaining the ECD Exploded Parts View of the ECD Warning tag Perforated cover Vent line Electrometer Intuvo ECD Tail Maintaining Your GC...

  • Page 163: To Bakeout The Ecd

    Maintaining the ECD To Bakeout the ECD With the detector oven at normal operating temperatures, show the detector output signal in Status. Note the value of the Output for later comparison. On the GC touch screen go to Home > Status listing > +Add. Select Detector 1 Output (or Detector 2 Output) from the drop-down list.
  • Page 164 Maintaining the ECD Maintaining Your GC...
  • Page 165 Maintaining the NPD Consumables and Parts for the NPD Exploded Parts View of the NPD To Replace the NPD Bead Assembly To Maintain the NPD Collector, Ceramic Insulators, and Jet To Check the NPD Leakage Current To Bakeout the NPD Agilent Technologies...

  • Page 166: Maintaining The Npd

    Maintaining the NPD Consumables and Parts for the NPD See the Agilent catalog for consumables and supplies for a more complete listing, or visit the Agilent Web site for the latest information (www.agilent.com/chem/supplies). Table 15 NPD parts Description Part number/quantity Collector G1534-20530 Screw, M3 ×...

  • Page 167: Exploded Parts View Of The Npd

    Maintaining the NPD Exploded Parts View of the NPD Bead assembly cable NPD cover Bead assembly Metal C-ring, top NPD Cover base Ceramic insulator, upper Collector Metal C-ring, bottom Interconnect cover Ceramic insulator Metal C-ring, bottom NPD lid standoff Electrometer Interconnect J-clamp Intuvo NPD tail...

  • Page 168: To Replace The Npd Bead Assembly

    Maintaining the NPD To Replace the NPD Bead Assembly Gather the following: • Replacement NPD bead assembly. (See “Consumables and Parts for the NPD” on page 166.) • Lint-free gloves • T-10 Torx screwdriver Set GC options for a new bead. Enable Dry Bead and Auto Adjust.
  • Page 169 Maintaining the NPD Remove the T-20 Torx screw that secures the NPD cover, and remove the NPD cover. Lift the NPB bead cable out of the NPD cover base. Twist the ring to disconnect the bead assembly cable. Push and twist the lock so that the button slides up in the groove, then pull the cable ends apart.
  • Page 170 Maintaining the NPD Remove the 3 T-10 Torx screws from the bead assembly. Bead assembly Gently lift up and remove the old bead assembly. Avoid bumping the bead on the sides of the collector. Remove the protective cap covering the new bead. Mount the new bead assembly on the NPD lid.
  • Page 171 Maintaining the NPD Install the NPD cover and the dark plastic detector cover. All covers must be closed to get a stable NPD baseline. Exit maintenance mode. On the GC touch display, touch Finished. (If needed, go to Maintenance > Instrument > Perform Maintenance >...

  • Page 172: To Maintain The Npd Collector, Ceramic Insulators, And Jet

    Maintaining the NPD To Maintain the NPD Collector, Ceramic Insulators, and Jet When replacing the jet, always install a new collector, ceramic insulators, and metal C-rings. When replacing the collector, Agilent recommends replacing the ceramic insulators and metal C-rings. Gather the following: •...
  • Page 173 Maintaining the NPD Be careful! The detector fittings may be hot enough to cause WA RNING burns. Remove any installed injector or tray and set aside. Remove the top cover, inlet cover, detector cover, and split vent trap cover. Remove the top cover screws in the order shown.
  • Page 174 Maintaining the NPD NPD cover base Remove screws This step exposes the interconnect spring. Be careful not to touch C A U T I O N or disfigure the spring while working on the NPD. Any dirt or bending will reduce the sensitivity of your detector. Remove the screws that secure the lid, and remove it.
  • Page 175 Maintaining the NPD Remove one screw and completely loosen the captive screw that secure the interconnect cover, and remove the cover. Remove Loosen Interconnect cover Loosen the screw that secures the J-clamp and turn the J-clamp to the side, exposing the interconnect. Loosen J-Clamp Remove the 2 screws and loosen the third screw until you...
  • Page 176 Maintaining the NPD Loosen Remove Collector Remove the large metal C-ring and the upper ceramic insulator if they were not attached to the lid. Remove the collector. If the detector is operated at high temperatures, the collector parts may stick inside the detector.
  • Page 177 Maintaining the NPD Use tweezers to remove the lower ceramic insulator and the two small metal C-rings located above and below the collector. If these parts are stuck together, do not separate them. If they are not stuck, remember which metal ring was on top of the insulator and which was below it.
  • Page 178 Maintaining the NPD Install the NPD cover. Reinstall the GC covers. When installing the GC top cover, start with the front two screws. Reinstall any tray and injector. Exit maintenance mode. On the GC touch display, touch Finished. (If needed, go to Maintenance > Instrument > Perform Maintenance >...

  • Page 179: To Check The Npd Leakage Current

    Maintaining the NPD To Check the NPD Leakage Current Load the analytical method. Set the NPD Adjust Offset to Off and the Bead Voltage to 0.00 V. • Leave the NPD at operating temperature • Leave flows on or off Show the detector output signal in Status.

  • Page 180: To Bakeout The Npd

    Maintaining the NPD To Bakeout the NPD Set the bead voltage to 0, then turn it Off. Set normal operating flows. Set the detector temperature at 25 °C above the typical method setpoint temperature. Set the oven temperature to 250 °C or 25 °C above the normal maximum operating temperature.

  • Page 181: Swagelok Connections

    Agilent Intuvo 9000 Gas Chromatograph Maintaining Your GC Swagelok Connections Making Swagelok Connections Using a Swagelok Tee The gas supply tubing is attached with Swagelok fittings. If you are not familiar with Swagelok connections, review the following procedures. Agilent Technologies...

  • Page 182: Making Swagelok Connections

    Swagelok Connections Making Swagelok Connections Objective To make a tubing connection that does not leak and that can be taken apart without damaging the fitting Materials needed: • 1/8-inch (or 1/4-inch, if used) preconditioned copper tubing • 1/8-inch (or 1/4-inch, if used) Swagelok nuts •...
  • Page 183 Swagelok Connections Nut and ferrules Plug or fitting Tubing held in a vise Figure 20 Assembling the fitting Push the tube fully into the plug, then withdraw it approximately 1 to 2 mm (Figure 21). Front ferrule Insert tubing fully Back ferrule Withdraw tubing 1—2 mm...
  • Page 184 Swagelok Connections Pencil line Figure 22 Marking the fitting For 1/8-inch Swagelok fittings, use a pair of 7/16-inch wrenches to tighten the fitting 3/4 of a turn (Figure 23). For 1/4-inch fittings, use a pair of 9/16-inch wrenches to tighten them 1-1/4 turn (Figure 23).
  • Page 185 Swagelok Connections Figure 24 Completed fitting Maintaining Your GC...

  • Page 186: Using A Swagelok Tee

    Tee with a Swagelok fitting. See Figure Tee fitting Nut and ferrules Figure 25 Swagelok tee Measure the distance from the Tee to the GC inlets. Attach copper tubing to the open Tee ends with Swagelok fittings. © Agilent Technologies, Inc. 2021...

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