Fluorolog-3 v. 2.2 (11 Jul 2002)
System Maintenance
5-16
Warning:
Never touch the
diffraction surface of a
grating.
Warning:
Do not loosen
the mirror mounts.
Gratings
The excitation and emission spectrometer gratings are 1200 grooves/mm, and are blazed at
330 nm and 500 nm, respectively. If an application requires that the system be optimized for
a particular region, the gratings can be changed by following a simple procedure.
Required tools
Tool Size
Purpose
Phillips screwdriver
medium
Top cover.
Lid support
--
Supports the lid in an open position.
Replacement
Gratings require no routine maintenance. To use a grating with different specifications than
those installed in the system, replace the existing ones.
Jobin Yvon Inc. recommends that you never attempt
to clean off any dust on the gratings and mirrors. The
effect of cleaning may cause more problems than the
dust. The surface is easily marred and cannot be
cleaned the way a mirror can.
Mirrors in the spectrometers have been aligned at the
factory. If mirror realignment is necessary, contact
the Spex
®
Fluorescence Service Department.
Typically, mirror realignment requires special targets
and fixtures, and a laser.
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