H. Product Conversions
Changing Slits
To change the entrance slit, pull the slit out from the slit mount. When sliding the slit in, you should feel the slit snap in place
by the force of the ball spring plunger in the slit flange. Check and make sure that the slit is centered within the slit flange
aperture.
Converting to a Spectrograph
The CM110/112 can be used in spectrograph mode when using a CCD camera. This unit has significant design differences,
such as a different focusing mirror and exit port adapter (see below). Call Spectral Products for a quote on converting your
CM110/112 to a CMSpectral Products110/112 or vice versa.
Optical Configuration of the CM110/112
Changing the Optical Path
Optical configuration may be changed to allow for either a right angle or a straight-through optical path. The Digikröm
CM110/112 is factory assembled with a removable folding mirror in place, unless otherwise requested by the customer.
Therefore, the instrument is usually configured for a straight-through optical path.
NOTE: only one of the two folding mirrors in the CM110/112 is removable
.
Before
you attempt to remove the mirror, refer to
page 28, and
follow directions below:
The conversion of the monochromator from the straight-through optical configuration to the right angle optical configuration
is a six-step process.
1.
The folding mirror assembly is held in place by two 4-40 screws (items #1) located at the exit flange side. Remove the
two screws, and gently pull the folding mirror mount assembly out of the CM110/112 housing.
2.
To remove the folding mirror from its mount, remove the center 4-40 screw (item #2) that holds the mirror in place.
Gently pull the mirror off of the mount.
Be careful
not to touch the mirror’s surface because it can be easily scratched or
damaged.
3.
Reinsert the middle screw into the mirror mount assembly and attach with a 4-40 nut. This is necessary in order to keep
stray light to a minimum.
4.
Move the exit flange from the side position to the position where you removed the folding mirror.
5.
Install the mirror mount (which you disassembled in step 2) into the opening where you removed the exit flange.
6.
The monochromator should be re-zeroed. NOTE: do not proceed with this step until you
understand
Calibrating Zero
with a Handheld Controller and Calibrating at a Wavelength on pages 24 and 25.
Changing Gratings
To change gratings, please contact the Spectral Products Group at Spectral Products at (505) 296-9541.
Spectral Products
2659-A Pan American Frwy., NE Albuquerque, NM 87107 Tel (505) 343-9700 Fax (505) 343-9705
www.spectralproducts.com
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Motor 1
Motor 2
ENTRANCE
EXIT
ENTRANCE
EXIT
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