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Agilent Technologies

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

1

Manual flow bezel

1

Blank Label Plate

2

Third detector flow

1

Third detector box cover assembly

1

Frame support

1

Corner bracket

1

Bolt and nuts (for corner bracket)

2

1/8" Bulkhead Union, 316 SST (with 2 Swagelok nut and ferrule)

1

Bulkhead Fitting Retainer, 316 SST

1

Screw, flathead, M4 × 0.7 10mm (long, for side cover)

2

Screw, machine, M4 × 0.7 12mm (for bezel, frame support, bulkhead fitting 
retainer, flow frame, TCD module, EPC module, PCB cover)

18

Captive screw, M4 × 0.7 12mm (long, for flow frame top)

2

Captive screw, M4 × 0.7 (for solenoid valve bracket)

2

1/8" nut and ferrule set brass, Swagelok (for EPC module and T-manifold)

2

Wrist strap, disposable 4-LG 1-W

1

T-manifold assembly

1

AUXZONE/VLV BOX cable

1

MSD HTD ZONE cable

1

Cable, switching valve

1

Solenoid valve bracket

1

Summary of Contents for G3437A

Page 1: ...acket 2 1 8 Bulkhead Union 316 SST with 2 Swagelok nut and ferrule 1 Bulkhead Fitting Retainer 316 SST 1 Screw flathead M4 0 7 10mm long for side cover 2 Screw machine M4 0 7 12mm for bezel frame support bulkhead fitting retainer flow frame TCD module EPC module PCB cover 18 Captive screw M4 0 7 12mm long for flow frame top 2 Captive screw M4 0 7 for solenoid valve bracket 2 1 8 nut and ferrule se...

Page 2: ...able 1 Third detector heated zone cable 1 Third TCD module 1 TCD PCB 1 TCD Ship Kit 1 TCD back ferrule 1 8 inlet 1 TCD front ferrule 0 787 mm 2 pk 2 TCD front ferrule for 0 53 mm 2 TCD front ferrule for 0 43 OD col 2 TCD packed column adapter for 1 4 packed column 1 Table 1 Parts supplied continued Description Quantity Third detector flow Manual flow bezel Third detector heated zone cable Bulkhead...

Page 3: ...nted Thermal Conductivity Detector Installation Instructions 3 Figure 2 TCD module parts identification i Figure 3 TCD board assembly T manifold assembly Bracket 3rd EPC TCD module Frame 3rd TCD PCB TCD PCB PCB cover 3rd TCD ...

Page 4: ... Installation Instructions Agilent G3437A Side Mounted Thermal Conductivity Detector Figure 4 Solenoid valve bracket and aux zone valve box cable Solenoid valve bracket Aux zone valve box cable connector ...

Page 5: ... out of the hole on the left side hinge and put the cover aside 4 Remove the top right electronics cover by loosening one screw located in the left front side Open the cover 90 degrees and lift up on the right side Slide the cover off the pin on the left side 5 Detach the rear top cover by removing the four screws Slide the top cover to the left until free gently tilting out the lower cover when i...

Page 6: ... the bracket and the screws are located at the top over the screw holes in the frame See Figure 5 5 Tighten the captive screws into the frame 6 Connect the MSD heated zone cable long to the bracket in the first A1 or last A2 position Record its position for use in the final configuration Figure 5 Aux zone valve box cable and solenoid valve bracket installed Install the MSD heated zone cable long 1...

Page 7: ... 3 On the left side unfasten the grommet and include the MSD heated zone long cable Leave the grommet unfastened until the communication cable is routed at the end of the installation procedure Assemble the TCD frame 1 Attach the manual flow bezel to the third detector flow frame with three M4 12 mm screws Figure 7 Attaching the manual flow bezel to the third detector flow frame Grommet MSD heated...

Page 8: ...ttach the frame support by screwing four screws through the bezel into the support Figure 8 Frame support installed 3 Attach the corner bracket using bolts and nuts between the bezel and frame Figure 9 Corner bracket installed M4 x 12 mm screws M4 x 12 mm screws Frame support Corner bracket ...

Page 9: ...ng the cable plug into the sheet metal notch inserting the cable into the grommet and sliding the grommet into the cutout on the frame Figure 11 Third detector heated zone cable installed in frame 6 Attach the bulkhead fitting retainer to the rear facing side of the frame by tightening the screw See Figure 12 7 Insert the bulkhead fitting through the frame so that the fixed nut is positioned in th...

Page 10: ...n the side of the GC for the detector Remove the round metal cutout at this location using diagonal cutters Make the cuts so that the metal nubs remain attached to the discarded metal circle 2 Remove and discard the circular insulation plug 3 Using the flat screwdriver punch a hole approximately in ID in the oven insulation Figure 13 Metal cutout removed and hole punched in oven insulation Bulkhea...

Page 11: ...the GC in a previous step 2 Orient the third detector flow frame with the GC by positioning the circular cutouts at the bottom edge of the frame with the four screw holes at bottom edge of the GC 3 Using a Torx driver attach the frame first with two 4 mm 12 captive screws at the top edge of the frame and then with four screws through the circular cut outs at the bottom edge of the frame Figure 14 ...

Page 12: ...ule Figure 15 Removing the two Torx screws from the module 2 Position the bracket 3rd EPC on the top of the module with the switching valve wire passing through the bracket cutout 3 Attach the bracket 3rd EPC to the module with the screws Figure 16 Attaching the bracket 3rd EPC to the module Torx screws Bracket 3rd EPC Screws Switching valve routed through cutout ...

Page 13: ...ing sure that it is not pinched when the module is in place against the instrument See Figure 17 3 Attach the EPC module to the frame at the two upper screws Figure 17 Installed EPC module 4 Place the detector over the circular detector cut out 5 Attach the detector to the GC by using three Torx screws 6 Connect the TCD heater cable to the third detector heated zone cable plug located on the third...

Page 14: ...re 18 TCD module installed Attach the T manifold assembly 1 Using a 1 8 nut and ferrule attach one end of the T manifold assembly short tubing arms to the EPC module reference gas fitting 2 Using a 1 8 nut and ferrule attach one end of the T manifold assembly short tubing arms to the EPC module makeup gas fitting Pneumatic tubing Heater cable connected and tucked behind bezel Screw locations ...

Page 15: ...ad fitting Figure 19 T manifold assembly installed Attach the frame 3rd TCD Position the frame with the flat surface facing up and the captive screws below Align the frame with the holes in the GC and tighten the captive screws Figure 20 Frame 3rd TCD installed Connection at bulkhead fitting Connection at Reference gas fitting Connection at Makeup gas fitting Captive screws Frame 3rd TCD ...

Page 16: ...e hooks 3 Slide the TCD board under the hooks so that all the slots engage all the hooks and the board lies flat and evenly on the frame Align the thumb screw directly over the screw hole 4 Attach the TCD board to the frame by tightening the thumb screw Figure 21 TCD board attached to frame 3rd TCD Attach the PCB cover 1 Insert the PCB cover tabs into the frame 3rd TCD slots and tilt the cover int...

Page 17: ...ush away from the connector hole insert the appropriate lead into the connector hole and release the tab to complete the connection Figure 22 TCD connected to TCD board Route the communication bus cable 1 Connect the plug on the communication cable labeled Aux DET2 to the plug labeled AuxDET2 in the EPC module area 2 Connect the plug on the communication cable labeled EPC5 to the plug labeled EPC5...

Page 18: ... grommet located in the side carrier frame directly above the EPC module Refasten the grommet in the cutout Figure 24 MSD heated zone cable included in left side grommet 5 Connect the TCD switching valve cable to the switching valve lead on the EPC module Connect the other end of the TCD switching valve cable to the board in the back left connector See Figure 25 6 Connect the Third DET EPC cable t...

Page 19: ...nels 4 Plug in the GC and turn on the power 5 Unlock the GC keypad a Press Options b Select Keyboard Display c Select Hard Configuration lock then press No Off 6 On the GC keypad press Configure then Aux Det 7 Select the Aux Detector and press Enter 8 On the keypad press Mode Type 9 Scroll to select the Aux Heater and press Enter The GC displays a prompt to select a heater to install Select Aux 1 ...

Page 20: ...covering the material in this document that conflict with these terms the warranty terms in the separate agreement shall control Agilent Technologies Inc 2007 Printed in USA and China Second edition June 2007 Agilent Technologies Inc 2850 Centerville Road Wilmington DE 19808 1610 USA 10 Reboot the GC a Press Options b Scroll to Communications and press Enter c Scroll to Reboot the GC and press On ...

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