Replacing The Em And Ex Grating - Agilent Technologies 1100 Series Reference Manual

Replacing the EM and EX Grating

When required
Tools required
Parts required
When working on the optical unit, a clean workbench with ESD protection mat must be
CAU TI O N
available. Otherwise optical components or electronic boards may be damaged.
The grating assembly is shipped with a special transport packaging and includes a
NO TE
protection ring. DO NOT touch the grating surface and DO NOT bend the protection ring.
Preparations for this procedure:
• Optical unit has been removed as described in
"Removing the Optical Unit"
• The cables from the position encoders (at the rear of
the EM or EX grating assembly) should be
disconnected.
• Disconnect the encoder cable of the
EX-monochromator from FLF board.
1100 Series FD Reference Manual
If defective
Screwdriver POZI 1 PT3
Hexagonal key, 4 mm and 2.5 mm
EM Grating assembly G1321-60004 (includes protection ring)
EX Grating assembly G1321-60003 (includes protection ring)
on page 178.
Repairing the Fluorescence Detector
1 Place the optical on the ESD protection mat and remove
the front foam (A). Locate the EM and EX grating
assembly.
EM
A
A A
A
B
EX
5
B
187