Agilent Technologies G4565A User manual

Agilent Technologies
Agilent 7697A Headspace Sampler
G4565A Cooling Plate Accessory Installation Guide
Parts Supplied 1
Parts Identification 2
Required Tools 3
Installation 4
To prepare the GC and 7697A 111-Vial Headspace Sampler 4
To remove the 111-vial tray assembly from the headspace sampler 5
To install the G4565A Cooling Plate Accessory 7
To power on the headspace sampler 11
To update the headspace firmware 11
Features and Specifications 13
Operation 15
Periodic Maintenance 16
Replacement Parts 17
Parts Supplied
The contents of the G4556- 64002 Cooling Plate Accessory Kit are
described in Table 1.
Table 1 G4556-64002 Cooling Plate Accessory Kit
Part Number Description Quantity
G4556-60600 Metal vial rack assembly (3) 1
G4522-20540 Cooler drip tube 1
G4556-40680 Secondary drip tray 1
5080-8752 Nut and ferrule set, 1/4-in, brass 1
0100-0056 Nut, 1/4-in, brass 1
G4522-20500 Bulkhead union, 1/4-in 1
1400-3298 Clamp, hose, 0.468-0.531-in od, 0.22-in wd 1

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Parts Identification
Figure 1 Metal vial racks, secondary drip tray, and cooler drip tube
Figure 2 Top cooling accessory base plate

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G4565A Cooling Plate Accessory Installation Guide 3
Required Tools
•T- 20 Torx driver
•Agilent Instrument Utilities software, version B.01.05 SP1 or later
•Lint- free gloves
•Lint- free cloth
Figure 3 Cooling plate assembly

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Installation
Read the Agilent 7697A Headspace Sampler Safety Manual before installing
the cooling plate accessory, and whenever needed. The safety manual
describes precautions to follow when performing maintenance and using
the headspace sampler, as well as important regulatory information.
Confirm that all parts have been received. Refer to “Parts Supplied” and
“Parts Identification” for information.
To prepare the GC and 7697A 111-Vial Headspace Sampler
1Set your GC oven, GC inlet, headspace oven, and transfer line to
ambient temperatures and wait for them to cool.
2Once the GC oven, headspace oven, and transfer line have cooled to
ambient temperature, turn off the headspace and unplug the power
cord.
3Turn off all gas flows at their sources.
4Remove all sample vials and vial racks from the headspace tray area.
CAUTION
Wear clean, lint-free gloves to prevent contamination of parts with dirt and skin oils.

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G4565A Cooling Plate Accessory Installation Guide 5
To remove the 111-vial tray assembly from the headspace sampler
1Lift the front of the tray assembly up and disconnect the two cable
connections underneath the tray (Figure 4).
2Slide the cables out of the tray cable clip (Figure 5).
Figure 4 Tray cable connections
Figure 5 Tray cable clip
Cable in clip
Cable connections
Tray cable clip

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3Lift the tray assembly off of the headspace and place it aside on a flat
surface.
4Using a T- 20 Torx driver, remove the six screws that secure the top
tray base plate to the headspace (Figure 6), then lift the top tray base
plate from the headspace.
Figure 6 Remove six T-20 Torx screws

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5Disconnect the three cables from the wire harness on the underside of
the top tray base plate (Figure 7).
6Remove the top tray base plate from the headspace.
To install the G4565A Cooling Plate Accessory
1Install the new top base plate.
aConnect the three cables to the wire harness on the underside of the
top cooling accessory base plate.
bInstall six T- 20 screws to secure the top cooling accessory base plate
to the headspace chassis.
Figure 8 shows the new top base plate installed on the headspace.
Figure 7 Disconnect the three cables from wire harness
Figure 8 Top base plate installed

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2Install the secondary drip tray on the right side of the base plate.
Align the hole in the base plate with the knob on the secondary drip
tray (Figure 9).
3On the underside of the cooling plate assembly, check that all plastic
wrapping is intact, especially for the three LED electronics boards on
the underside of the front edge (see Figure 10).
Figure 9 Install the secondary drip tray
Secondary drip tray
Base plate hole
Knob
CAUTION
Moisture-sensitive components on the cooling plate assembly are wrapped in
plastic. Do not remove the wrapping. Removing the wrapping will result in
premature failure of the electronic components.
Figure 10 Plastic wrapping covering the LED electronics board on underside of front edge
LED electronics board
Plastic wrapping

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G4565A Cooling Plate Accessory Installation Guide 9
4Lower the back of the cooling plate assembly onto the top instrument
cover while holding the front of the assembly above the headspace.
5Slide the cables into the plate cable clip (Figure 11).
6Connect the cooling plate cables to the cable connections (Figure 12).
7Lower the front of the cooling plate assembly onto the headspace. Be
sure it sits level on the headspace sampler.
8Install the metal vial rack assemblies. Take note of the vial position
numbering on the top of vial racks when placing them into the cooling
plate assembly.
Figure 11 Slide cables into the cable clip
Figure 12 Cable connections on top base plate
Cooling plate cable clip

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9Install the cooler drip tube to the back of the headspace.
aInstall the clamp onto the tube end.
bInstall the clamp and tube into the fitting shown in Figure 13.
10 Cut the cooler drip tube to length. The tube must allow for
condensate to drain easily with no back pressure. Otherwise, water
will not drain properly. See “Periodic Maintenance” on page 16 for
information about the drip tube.
11 Remove the orange shipping clamp from the cooling plate gantry using
a T- 20 Torx driver. Refer to the instruction sheet provided with the
cooling plate.
12 Plug in the headspace power cord, and restore the headspace and GC to
operating conditions.
Figure 13 Drip tube and clamp installed on the back of the cooling plate

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G4565A Cooling Plate Accessory Installation Guide 11
To power on the headspace sampler
1Power on the headspace sampler (Figure 14).
2Press [Status] > [Clear] on the headspace keypad to display the firmware
revision. If the firmware revision is lower than A.01.05.1, you must
update the headspace firmware. See “To update the headspace
firmware” for details.
To update the headspace firmware
The 7697A Headspace Sampler firmware version must be A.01.05.1 or
greater to control the G4565A Cooling Plate Accessory.
Use Agilent Instrument Utilities software, version B.01.05 SP1 or later to
update the headspace firmware.
1Load Agilent Instrument Utilities.
2Select Firmware Update from the explorer pane.
3Select the Agilent 7697A Headspace Sampler from the Instruments list
and click Connect.
If the Agilent 7697A Headspace Sampler is not available, click Add New
Instrument to open Configure Instruments. Add the new instrument, then
return to firmware update.
Figure 14 Power on the headspace sampler

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4If your 7697A Headspace Sampler firmware revision is not A.01.05.1 or
greater, update to the latest version of the firmware.
aContact your local Agilent service representative to acquire a copy of
the latest firmware.
bIf necessary, unzip the firmware file(s).
cIn the Firmware Update utility, click Add. Browse to and select the files
unzipped in the previous step. The new firmware version appears in
the Available drop- down list.
dClick Update.
eWhen prompted, save the active method and configuration data. You
will restore the data from this file in a later step.
fWhen the process completes, the instrument reboots. Reconnect to
the instrument, then click Restore. Select the previously- saved data
file to restore the active method.
5When complete, power cycle the 7697A Headspace Sampler.
WARNING
Do not turn off power to the device during firmware update.

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G4565A Cooling Plate Accessory Installation Guide 13
Features and Specifications
This section describes some of the features and specifications of the
cooling accessory.
Temperat ur e
All 108 vial positions in the vial racks can be cooled to 4 °C or heated to
80 °C.
The center of each vial location temperature can vary within +1 to -3 °C
of the cooling plate sensor reading.
Cooling source
Depending on your lab conditions, you may need to set your cooling
source to a lower temperature value than the desired temperature setpoint,
as coolant temperature losses can occur between the cooling source and
cooling plate.
Coolant
Use only distilled water, ethylene glycol, or propylene glycol as coolant.
Water bath and pump specifications
The water bath and pump system used to control the sample vial
temperatures must meet the following specifications:
•The components must meet national standards for safety requirements,
be suitable for unattended operation, be suitable for continuous
operation, and be controllable for high- temperature protection.
•The recommended coolant temperature range is 4 to 80 °C.
•If you use a built- in pump, it must be suitable for external circulation
of liquid and for connection of 1/4- in od (6.35 mm) tubing or larger.
•If you use a pressure pump, it must maintain a pressure from 1.5 to
2.5 psi.
•If you use a suction pump, the pump vacuum cannot exceed –4 psi.
•Typical recirculator cooling power capacity varies from 1000 to
2000 watts.
NOTE
The three priority sample positions on the cooling plate assembly are not
temperature controlled.

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Condensate and environmental conditions
To avoid excess condensate, keep the humidity level below 65% and the
temperature below 23 °C. If either value increases above its limit, excess
condensate will form and cause drainage overflow.
Be sure your cooling plate operating temperature remains above 4 °C.
Temperatures at 4 °C and lower may cause condensate to freeze and
drainage problems may occur.
If operating in a non- air conditioned environment, shut off the cooling
plate source or raise its temperature to a value above the expected dew
point temperature when not in use.
Occasional excess condensate will not cause permanent damage to your
instrument. If the condensate management system overflows, unplug the
power source to the headspace as soon as possible and dry the affected
areas before use.

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G4565A Cooling Plate Accessory Installation Guide 15
Operation
This section describes how to operate the cooling plate with the Agilent
7697A Headspace Sampler.
The 7697A Headspace Sampler firmware version must be A.01.05.1 or
later. If it is an earlier version, you must update to the latest version. See
“To update the headspace firmware” on page 11 for information.
To configure the cooling plate:
1Using the headspace front keypad, press [Temps] to access the
Temperature configuration.
2Scroll to Use Cool Plate Rdy then press [On/Yes] to include the cooling
plate as part of instrument readiness.
When Use Cool Plate Rdy is set to On, the Cooling plate and Cooling plate
Error-band parameters appear below (Figure 15).
3Scroll to Cooling plate and set the desired temperature setpoint for
instrument readiness. The first number is the actual cooling plate
temperature. The second number is the configurable target temperature
setpoint.
4Scroll to Cooling plate Error-band and set the allowable temperature margin
of error before the instrument declares the cooling plate not ready.
Figure 15 7697A Headspace Sampler front display
TEMPERATURE
Use Cool Plate Rdy 15.5 On
Cooling plate 15.5 25
Cooling plate Error-band 1

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Periodic Maintenance
This section contains some suggestions for ensuring good performance of
your cooling plate. The maintenance interval varies with the use of the
instrument.
On an occasional basis:
•Check for condensation buildup in the secondary drip tray. Use a towel
or sponge to remove the excess condensate.
•Check that the drainage tubing drains condensate easily and has no
back pressure. Be sure that:
•The tubing slopes downward towards the drainage container.
•The tubing is kept straight without kinks that may block the flow.
•The tubing does not become clogged or dirty. Replace tubing if
necessary.
•The open end of the tubing is not submerged in the drainage
container (Figure 16).
Figure 16 Drip tube correctly hung (left) and incorrectly submersed (right)

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G4565A Cooling Plate Accessory Installation Guide 17
Replacement Parts
Table 2 describes the available replacement parts for the G4565A Cooling
Plate accessory.
Table 2 Replacement parts
Part Number Description Quantity
G4556-60600 Metal vial rack assembly (3) 1
G4522-20540 Cooler drip tube 1
G4556-40680 Secondary drip tray 1
5080-8752 Nut and ferrule set, 1/4-in, brass 1
0100-0056 Nut, 1/4-in, brass 1
G4522-20500 Bulkhead union, 1/4-in 1
1400-3298 Clamp, hose, 0.468-0.531-in od, 0.22-in wd 1

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© Agilent Technologies, Inc. 2012
Printed in USA
First Edition, September 2012
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