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Installing a Split/Splitless Inlet
Agilent 6850 Series II Network GC System
Accessories G2652A (Standard) and G3343B (High-Pressure)
This kit contains:
Description
®
T-20 Torx
screws, M4 x 8 mm
Machine screws M4 x 0.7 12 mm
Bottom cup insulation
Middle cup insulation
Top cup insulation
Insulation cup
Disposable wrist strap
Top block insulation
Bottom block insulation
Split/Splitless capillary inlet system
ChemStation CD (G3343B only)
6850 GC User Information CD-ROM (G3343B only)
Installation sheet (this document)
The inlet and flow module are a factory-assembled and leak-tested unit. Do
not disassemble it during installation.
Quantity
2
6
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1
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Summary of Contents for Agilent Technologies 6850 II Series
- Page 1 Installing a Split/Splitless Inlet Agilent 6850 Series II Network GC System Accessories G2652A (Standard) and G3343B (High-Pressure) This kit contains: Description Quantity ® T-20 Torx screws, M4 x 8 mm Machine screws M4 x 0.7 12 mm Bottom cup insulation Middle cup insulation Top cup insulation Insulation cup...
- Page 2 Installing a Split/Splitless Inlet Screws Top block insulation Split/Splitless Bottom block insulation capillary inlet system Insulation cup Bottom cup insulation Middle cup insulation Top cup insulation Disposable wrist strap 1 - Flow Module 2 - Split vent trap 3 - Heater/Sensor cable 4 - Inlet assembly...
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Page 3: Required Tools
Installing a Split/Splitless Inlet Required tools Required tools • Inlet wrench • T-20 Torx screwdriver Overview Caution Before starting, review the safety information listed at the end of this document. Disconnect the GC. Remove the lid top cover. Remove the existing inlet, if necessary. Install the new inlet. - Page 4 Installing a Split/Splitless Inlet Disconnect the GC Disconnect the GC WARNING Hydrogen gas is flammable and potentially explosive. Before replacing the flow module, turn off the hydrogen gas at the source. WARNING Hazardous voltages are present in the instrument whenever the power cord is connected.
- Page 5 Installing a Split/Splitless Inlet Remove the lid top cover Remove the lid top cover Lid top cover, without Remove vent tubing, valve box accessory if present Remove T-20 Torx screws (8 places) Remove detector cover, if desired Remove the existing inlet If the GC currently has an inlet installed, you must remove it.
- Page 6 Installing a Split/Splitless Inlet Remove the existing inlet Slide the cover plate off and disconnect the cable from the flow module. Disconnect the gas fitting on the back of the flow module. Remove the three screws on top of the flow module. To continue this procedure, see the following section corresponding to the type of inlet you are removing.
- Page 7 Installing a Split/Splitless Inlet Remove the existing inlet Split/Splitless inlet Use the inlet wrench to release the large nut on top of the inlet. Insert weldment (includes nut) Large nut If you do not have a gas or liquid sample valve—Remove the insert weldment and the flow module.
- Page 8 Installing a Split/Splitless Inlet Install the new inlet Install the new inlet Remove the center plug from the bottom block insulation. Place the remaining ring in the inlet hole. Place the top block insulation in the hole. Align the long sides of the hole parallel to the sides of the lid.
- Page 9 Installing a Split/Splitless Inlet Install the new inlet Plug the flow module cable into its connector. Replace the connector cover plate and tighten the screws. Tighten Connect Connect the carrier supply line to the back of the flow module. 10. Connect the heater/sensor cable to the wiring harness. Wiring harness connector Gang block fitting...
- Page 10 Installing a Split/Splitless Inlet Restore the GC to operating condition 11. If you do not have a gas or liquid sample valve—Connect the insert weldment to the inlet body and tighten the large nut with the inlet wrench. If you do have a gas or liquid sample valve—Connect the insert weldment attached to the valve to the inlet body and tighten the large nut with the inlet wrench.
- Page 11 Installing a Split/Splitless Inlet Restore the GC to operating condition...
- Page 12 Failure to comply with these precautions violates safety standards of design and the intended use of the instrument. Agilent Technologies assumes no liability for the customer’s failure to comply with these requirements.