Agilent Technologies 55 AA User manual

Fitting Deuterium Lamp Background Correction to
Agilent 50/55 AA Instruments
This instruction sheet describes how to install a deuterium lamp background
correction upgrade to an Agilent 50/55 AA.
Parts List
Description Part Number Description Part Number
Assembly, mirror M5D2 0110598890 Screw (2 off) M5x30 countersunk 1510187300
Assembly, beamsplitter 0110599390 Screw (3 off) M4x12 pan 1510108200
Assembly, D2lamp 0110602800 Set screw (2 off) M4x16 cone point 1510180800
Assembly, loom D2lamp 0110613000 Set screw (2 off) M4x16 oval point 1510180900
Ball bearing 0310031100 Washer 1510126900
Bracket 0410293800 Hex nut M5 1510110200
Bracket, microswitch cover 0410309700 Window, UV silica 2010082600
Microswitch mounting plate 0810018700 Label, D2interlock 3110050300
Cover, D2lamp 0910106900 Spring (2 off) 4610016600
Mount plate 0910110700 Adhesive pad 4910012700
Screw (2 off) 8 BA 1510062600 Installation instructions 8510160900
Screw M4x30 1510109300 Insulating washer 21100002
Installation
To fit the deuterium lamp background correction upgrade:
1Unpack the contents of the kit (part number 9910092500).
2Unplug the 50/55 AA instrument.
WARNING
Electrical Shock Hazard
The instrument contains electrical circuits, devices and components that operate at dangerous
voltages. Contact with these circuits, devices or components can cause death, serious injury or
painful electric shock.
3Remove external covers and the optics cover as described in the Agilent
50/55/140/240/280 AA Service Manual.

Fitting Deuterium Lamp Background Correction to Agilent 50/55 AA Instruments
2
4Using the supplied 8 BA screws, fit the D2interlock microswitch, its insulating
washer and its cover plate to the lamp panel. Fit the supplied D2interlock label
(part number 3110050300) to the supplied D2lamp cover (part number
0910106900). Fit the D2cover to the rear of the lamp panel.
5Fit the supplied D2lamp assembly to the lamp panel. Connect the supplied D2
loom to 2PL18 on the Control PWB.
6Remove the blanking plate from the floor of the optics chassis above the D2
lamp. It is fixed with double-sided adhesive tape and may be difficult to
remove. Take care to avoid damage to the optics chassis casting. Fit the
supplied adhesive pad (part number 4910012700), to the UV silica window
(part number 2010082600). Fit the silica window to the optics chassis floor in
place of the blanking plate.
7Build the M5D2 assembly from these supplied parts:
assembly M5D2 mirror (part number 0110598890),
ball bearing (part number 0310031100),
mount plate (part number 0910110700),
screw M5x30 countersunk (part number 1510187300),
screw M4x12 pan (part number 1510108200),
washer (part number 1510126900),
hex nut M5 (part number 1510110200), and
spring (part number 4610016600).
8Fit the M5D2 mirror assembly to the optics chassis.
9If you are upgrading a 50 AA, remove the ‘beamsplitter’ (it is really a flat
mirror) assembly from its bracket. Fit the replacement beamsplitter assembly
(part number 0110599390) to the bracket. If you are upgrading a 55 AA, you do
not need to do anything to the fitted beamsplitter, as it is already the right type.
10 You may need to fit a back-lighting assembly to align the M5D2 mirror and
beamsplitter assemblies as described in Section 10.8 of the Agilent
50/55/140/240/280 AA Service Manual.
11 Refit all covers and power the instrument.
Testing the Installation
Exercise the D2lamp using SpectrAA software or service diagnostics SVD.exe.
You have now finished installing this upgrade.
This information is subject to change without notice.
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8510160900
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*8510160900*
8510160900
Part Number: 8510160900
Edition 04/12
Issue 3
© Agilent Technologies, Inc. 1998, 2010
and 2012
Agilent Technologies
679 Springvale Road
Mulgrave, VIC 3170