Agilent Technologies G3440-68011 Bedienungsanleitung

Agilent Technologies

Agilent G3440-68011 Micro Electron

Capture (µECD) 3rd Detector

For the Agilent 7890B Gas Chromatograph

Installation Instructions

Parts Supplied

1/8-inch

Table 1 Parts supplied

Description Quantity Part number

Electron Capture Detector (µECD) 1 G2397-65506

µECD 3rd detector box assembly 1 G3440-60011

µECD board (included with µECD Module) 1 G3433-61020

µECD Caution label 1 19233-90730

3rd µECD supply tube weldment 200 mm 1 G3433-81000

Third detector EPC communication cable 1 G3432-60505

Third detector heated zone cable 1 G3432-60506

Third detector PCA frame assembly 1 G3430-00122

Frame 3rd EPC 1 G3430-00062

Third detector adaptor plate 1 G3497-00001

Solenoid valve bracket 1 G1580-00070

AUX Zone/VLV box cable 1 G1530-60660

MSD HTD Zone 1 G1530-60790

Nutwarmer cup assembly 1 19234-60700

Nutwarmer insulation 3 19234-60715

Scr-Mach M4X0.7 25 mm 2 0515-2712

M4 x 12 mm screws 11 0515-2496

Nameplate (attached to detector) 1 7120-1454

1/8-inch nut & ferrule set brass swagelok 1 5181-7481

Bulkhead fitting retainer, 316 SST 1 0100-0137

1/8-inch bulkhead union 1 0100-0133

M 4 captive screw 2 1390-1023

2Installation Instructions

Agilent G3440-68011 Micro Electron Capture (µECD) 3rd Detector

Parts Identification

Figure 1 µECD Parts identification

µECD

EPC module

µECD board

µECD Caution

label

µECD module

Agilent G3440-68011 Micro Electron Capture (µECD) 3rd Detector

Installation Instructions 3

Figure 2 Brackets and cables

Figure 3 Pneumatic parts

Detector PCA

frame assembly

Third detector adapter plate

Third detector EPC frame

Third detector EPC

communication cable

Grommet

MSD heated zone cable

Third detector heated

zone cable

3rd µECD supply tube weldment 200 mm Bulkhead fitting retainer

Not used (discard)

Bulkhead union

4Installation Instructions

Agilent G3440-68011 Micro Electron Capture (µECD) 3rd Detector

Figure 4 Solenoid valve bracket and aux zone/valve box cable

Tools Required

•T-20 Torx driver

•Flat screwdriver

•7/16-inch and 1/2-inch Open-end wrench

•Phillips head screwdriver

•ESD wrist strap

Aux zone/valve box

cable connector

Solenoid valve bracket

Agilent G3440-68011 Micro Electron Capture (µECD) 3rd Detector

Installation Instructions 5

Installation Procedure

This procedure explains how to install the Side-Mounted Electron Capture

Detector (μECD) accessory on the Agilent 7890B Gas Chromatograph (GC).

Prepare the GC

1If the GC is connected to a mass spectrometer (MS), vent the MS and shut it

down. Refer to the MS Operation manual.

2If a headspace sampler (HS) is installed to a GC inlet, disconnect it. Refer to

the HS documentation.

3Set the GC oven temperature to 40 °C. Turn off the inlet, detector, valve

box, and other heaters.

4When the oven cools, turn off the GC and unplug the power cord.

5Allow time for the detector(s) and other heated zones to cool.

6Remove the pneumatics cover. Two large buttons on each side of the GC

secure the cover to the detector frame. Press both buttons and lift the cover

off.

WARNING

Refer to the Safety Manual that came with your Agilent 7890B Gas

Chromatograph for hazards that may exist when maintaining your instrument.

WARNING

All versions of µECD cells contain radioactive material. Exposure to radioactive

material is hazardous to human health. Under no circumstances should an µECD

cell be disassembled, as this is in violation of the General License agreement.

µECDs must be returned to a licensed facility. Agilent will accept only µECDs

manufactured by either Hewlett-Packard or Agilent Technologies, Inc.

WARNING

Before proceeding, turn off the column heater and other heated zones and let

them cool down. When they have cooled, turn off any detector gases at their

supply, then turn off the main power switch and unplug the power cord.

CAUTION

Always allow time for the column heater and other heated zones, to cool before

turning off the gas supplies. Failure to allow cooling may damage the flow path.

CAUTION

Make sure you are properly grounded with an ESD wrist strap before continuing.

6Installation Instructions

Agilent G3440-68011 Micro Electron Capture (µECD) 3rd Detector

7Remove the detector cover by raising the cover vertically (until it is

perpendicular to the GC oven) and then firmly lifting up on the right side of

the cover to free it from the hinge pin. Slide the cover’s hinge pin out of the

hole on the inlet side and set the cover aside.

8Remove the electronics cover. Loosen the screw on the left side of the

electronics cover. Open the cover 90 degrees and lift up on the right side.

Slide the cover off of the left side hinge.

9Remove the GC right side cover. Loosen the single top screw, then slide the

cover towards the back of the GC and remove.

10 Remove the top back cover by loosening the four screws. Slide the top back

cover to the left until free, gently tilting out the lower end of the cover as

needed for removal.

11 Remove the GC left side cover by loosening the top screw, sliding the panel

towards the back, and lifting off the cover.

12 Put on an ESD wrist strap, and attach the ground to the GC sheet metal

frame for electrostatic protection.

Install the solenoid valve bracket and cables

1Skip to step 6 if the solenoid valve bracket is already installed on your GC.

2Insert the four smaller valve plugs and two larger aux heater plugs into the

slots in the solenoid valve bracket. Match the labels on each plug to its

correct location as shown in Figure 5.

Figure 5 Connector installation for the solenoid valve bracket

3Connect the aux zone/valve box cable connector into the analog and power

(A&P) board at P22. See Figure 6.

V1 V2 V3 V4

Agilent G3440-68011 Micro Electron Capture (µECD) 3rd Detector

Installation Instructions 7

Figure 6 Aux zone/valve box cable and solenoid valve bracket install

4Align the solenoid valve bracket so the cables are coming from the bottom

of the bracket and the screws are located at the top over the screw holes in

the frame. See Figure 6.

5Tighten the captive screws into the frame.

6Connect the MSD heated zone cable (long) to the bracket in the first (A1) or

last (A2) position. Record its position for use during configuration.

7Route the MSD heated zone cable (long) across the top of the GC oven. Pass

it under any detector gas lines and through the channels to the right side of

the instrument. See Figure 7.

Figure 7 Route the MSD heater cable across the GC oven top (view from front of GC)

8On the left side of the oven top, unfasten the grommet and include the MSD

heated zone long cable. See Figure 8. Refasten the grommet.

AI V1

V4 A2

Solenoid valve

bracket

Bracket captive

screws

MSD heated zone

cable (installed in

first position)

Aux zone/valve box

cable connection at P22

8Installation Instructions

Agilent G3440-68011 Micro Electron Capture (µECD) 3rd Detector

Figure 8 MSD heated zone cable included in main communication grommet

9Route the MSD heated zone cable behind the inlet fan and down the left

side of the GC. Include it in the grommet as shown in Figure 10 on page 10.

10 Connect the third detector heated zone cable to the open end of the MSD

heated zone cable (on the side of the GC). See Figure 10 on page 10.

11 Connect the EPC5 female connector of the third detector communications

cable to the matching EPC5 connector on the main communications harness.

The EPC5 connector is typically located in EPC bay 5. See Figure 9 on

page 9. You may need to lift any PCM or Aux EPC module to access EPC5 on

the main harness.

12 Connect the Aux Det1 female connector of the third detector

communications cable to the matching Aux Det1 connector on the main

communications harness. Aux Det1 is located in the back inlet EPC bay.

As an example, shown in Figure 9, is a TCD EPC communications cable

connection and routing.

MSD heated zone

cable

Grommet

Agilent G3440-68011 Micro Electron Capture (µECD) 3rd Detector

Installation Instructions 9

Figure 9 Third detector EPC communications cable connections and routing

13 Route the third detector EPC communications cable along the outside edge

of the EPC carrier, back and through the slot near the inlet fan, then behind

the inlet fan and down the left side of the GC. See Figure 9 and Figure 10.

Figure 10 Route the third detector EPC communications cable

EPC5 connector located in bay 5 Route cable between inlet fan and EPC

chassis split vent trap area

Route cable along back edge of

EPC chassis

Aux Det1 connection Route cable along side

of EPC bays

Grommet

MSD heated zone

cable

Third detector EPC

communications cable

10 Installation Instructions

Agilent G3440-68011 Micro Electron Capture (µECD) 3rd Detector

Prepare the GC left side

1Use a flat-head screwdriver to remove the sheet metal knockout on the left

side of the GC. See Figure 11.

Figure 11 Remove sheetmetal knockout

2Remove the circular insulation plug and any excess insulation. Use a

flat-bladed screwdriver to create a 1/4-inch hole through the oven

insulation and into the oven. See Figure 12.

Figure 12 Prepare mounting hole for the µECD

3Install the 3rd detector adaptor plate to the side of the GC using four

12 mm M4 screws. See Figure 13.

Hole for 3rd µECD installation

Insulation removed

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