Table of Contents
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Parts Supplied
Table 1
Description
Third Detector Box Kit Assembly
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•
•
•
•
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1/8" Bulkhead Union, 316 SST (with 2 Swagelok nut and ferrule)
Bulkhead Fitting Retainer, 316 SST
Screw, flathead, M4 × 0.7 10mm (long, for side cover)
Screw, machine, M4 × 0.7 12mm (for bezel, frame support, bulkhead fitting
retainer, flow frame, TCD module, EPC module, PCB cover)
Captive screw, M4 × 0.7 12mm (long, for flow frame top)
Captive screw, M4 × 0.7 (for solenoid valve bracket)
1/8" nut and ferrule set brass, Swagelok (for EPC module and T-manifold)
Wrist strap, disposable 4-LG 1-W
T-manifold assembly
AUXZONE/VLV BOX cable
MSD HTD ZONE cable
Cable, switching valve
Solenoid valve bracket
Agilent G3437A Side-Mounted Thermal
Conductivity Detector
For the Agilent 7890A Gas Chromatograph
Installation Instructions
Parts supplied
Manual flow bezel
Blank Label Plate
Third detector flow
Third detector box cover assembly
Frame support
Corner bracket
Bolt and nuts (for corner bracket)
Agilent Technologies
Quantity
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18
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Table of Contents
Related Manuals for Agilent Technologies G3437A
Summary of Contents for Agilent Technologies G3437A
- Page 1 Agilent G3437A Side-Mounted Thermal Conductivity Detector For the Agilent 7890A Gas Chromatograph Installation Instructions Parts Supplied Table 1 Parts supplied Description Quantity Third Detector Box Kit Assembly • Manual flow bezel • Blank Label Plate • Third detector flow •...
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Page 2: Parts Identification
Agilent G3437A Side-Mounted Thermal Conductivity Detector Table 1 Parts supplied (continued) Description Quantity Bracket (3rd EPC) Frame (3rd TCD) PCB Cover (3rd TCD) Third detector EPC communication cable Third detector heated zone cable Third TCD module TCD PCB TCD Ship Kit •... - Page 3 Agilent G3437A Side-Mounted Thermal Conductivity Detector Bracket (3rd EPC) TCD module T-manifold assembly Figure 2 TCD module parts identification Frame (3rd TCD PCB) TCD PCB PCB cover (3rd TCD) Figure 3 TCD board assembly Installation Instructions...
- Page 4 Agilent G3437A Side-Mounted Thermal Conductivity Detector Solenoid valve bracket Aux zone/valve box cable connector Figure 4 Solenoid valve bracket and aux zone/valve box cable Installation Instructions...
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Page 5: Tools Required
Agilent G3437A Side-Mounted Thermal Conductivity Detector Tools Required • T-10 and T-15 Torx drivers • Phillips head screwdriver • Small, flat-blade screwdriver • 1/8” wrench Installation Procedure This procedure explains how to install the thermal conductivity detector (TCD) accessory as a third detector on the Agilent 7890A Gas Chromatograph (GC). -
Page 6: Install The Solenoid Valve Bracket
Agilent G3437A Side-Mounted Thermal Conductivity Detector Install the solenoid valve bracket Skip to step 6 if the solenoid valve bracket is already installed on your GC. Insert the four smaller valve plugs and two larger aux heater plugs into the slots in the solenoid valve bracket. -
Page 7: Assemble The Tcd Frame
Agilent G3437A Side-Mounted Thermal Conductivity Detector Unfasten the main communication grommet and include the MSD heated zone cable in the bundle. Refasten the grommet. MSD heated zone cable Grommet Figure 6 MSD heated zone cable included in main communication grommet On the left side, unfasten the grommet and include the MSD heated zone long cable. - Page 8 Agilent G3437A Side-Mounted Thermal Conductivity Detector Attach the frame support by screwing four screws through the bezel into the support. M4 x 12 mm screws Frame support M4 x 12 mm screws Figure 8 Frame support installed Attach the corner bracket, using bolts and nuts, between the bezel and frame.
- Page 9 Agilent G3437A Side-Mounted Thermal Conductivity Detector Attach the two blank label plates to the front side of the bezel to completely cover the holes. Blank label plate Front side of bezel Figure 10 Attaching the two blank label plates Attach the third detector heated zone cable (short) to the frame by inserting the cable plug into the sheet metal notch, inserting the cable into the grommet, and sliding the grommet into the cutout on the frame.
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Page 10: Prepare The Detector Mounting
Agilent G3437A Side-Mounted Thermal Conductivity Detector Secure the fitting by attaching and tightening the backing nut. Screw for bulkhead retainer Bulkhead fitting (without ferrule) Figure 12 Bulkhead fitting installed in frame Prepare the detector mounting Locate the position on the side of the GC for the detector. Remove the round metal cutout at this location using diagonal cutters. -
Page 11: Attach The Third Detector Flow Frame
Agilent G3437A Side-Mounted Thermal Conductivity Detector Attach the third detector flow frame Connect the third detector heated zone cable (attached to the back of the third detector flow frame) to the MSD heated zone cable (long), which was attached to the GC in a previous step. -
Page 12: Attach The Frame (3Rd Epc)
Agilent G3437A Side-Mounted Thermal Conductivity Detector Attach the frame (3rd EPC) Remove the two Torx screws from the top of the module. Torx screws Figure 15 Removing the two Torx screws from the module Position the bracket (3rd EPC) on the top of the module with the switching valve wire passing through the bracket cutout. -
Page 13: Install The Tcd Module
Agilent G3437A Side-Mounted Thermal Conductivity Detector Install the TCD module Temporarily rest the detector module on the floor of the third detector flow frame. Slide the bottom cage of the EPC module into the supporting slots on the frame. Tilt the EPC module forward slightly and position the switching valve wire in the frame cut out slot, making sure that it is not pinched when the module is in place against the instrument. -
Page 14: Attach The T-Manifold Assembly
Agilent G3437A Side-Mounted Thermal Conductivity Detector Orient the pneumatics tubing downwards so that it doesn’t interfere with the TCD board installation. Heater cable connected and tucked behind bezel Screw locations Pneumatic tubing Figure 18 TCD module installed Attach the T-manifold assembly Using a 1/8”... -
Page 15: Attach The Frame (3Rd Tcd)
Agilent G3437A Side-Mounted Thermal Conductivity Detector Using a 1/8” nut and ferrule, attach the long end of the T-manifold assembly tubing arm to the bulkhead fitting. Connection at bulkhead fitting Connection at Makeup gas fitting Connection at Reference gas fitting... -
Page 16: Attach The Tcd Board
Agilent G3437A Side-Mounted Thermal Conductivity Detector Attach the TCD board Remove the TCD logic board from its static control bag. Align the TCD board with the frame (3rd TCD) so the board circuits are facing up and the board notches are to the left of the frame hooks. -
Page 17: Route The Communication Bus Cable
Agilent G3437A Side-Mounted Thermal Conductivity Detector Δ Attach the filament leads (thick black wire sheath) and the PRT leads (thin white wire sheath) from the TCD to the TCD board as the configuration shown in Figure 22. Using a small flat-blade screwdriver to... - Page 18 Agilent G3437A Side-Mounted Thermal Conductivity Detector Thread the cables from the EPC module area behind the pneumatics area to the third detector flow frame. Bundle the MSD heated zone cable and the communication cable with the existing cables using the grommet located in the side carrier frame directly above the EPC module.
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Page 19: Restore The Gc To Operating Condition
Agilent G3437A Side-Mounted Thermal Conductivity Detector Connect the Third DET cable to the TCD board in the bottom connector. Switching valve connections Third DET connection Figure 25 TCD module cable connections Restore the GC to operating condition If installed, remove the red TCD cap on the TCD exhaust. -
Page 20: Agilent Technologies
© Agilent Technologies, Inc. 2007 Printed in USA and China Second edition, June 2007 Agilent Technologies, Inc.