270M
Rapid
Scanning Imaging Spectrograph
5.3
226MCD Shutter:
This is an internal mount shutter that is intended for exposure control on Spectrum
One CCD and QuikScan PDA detector systems. It attaches
to
the detector mounting
cup of the 270MCA multichannel array adapter, fitting into the spectrograph exit port
of
the 270M.
To
Install it, see Figure 6: 226MCD Installation. There are four holes
in
the
cup. Use only three
of
these holes, leaving the top hole unused. Insert 3
of
the 2-56
screws provided, screwing on the three 0.5 inch spacers, followed by three set
screws. Place the shutter on the set screws and fasten it in place using the three
0.375 inch spacers. Fasten the baffle plate over the shutter with three phillips head 2-
56 screws. Remove the plug from the purge port on the back
of
the 270M, and
replace it with the BNC connector provided. the wiring on the BNC connector should
pass through the purge port and under the circuit board(s) inside and should be
routed neatly with the existing wiring towards the spectrograph exit. When the
detector/
cup/
shutter assembly
is
inserted into the multichannel adapter flange,
connect the shutter wiring to the BNC and neatly secure any slack wiring with the
existing wire retainers.
The BNC connector on the back of the 270M connects to the shutter cable of a
Spectrum One
or
QuikScan detection system.
20
PURCJE
PORT
LOCATED
ON
BACK OF
270M
BAFFLE
PLATE
SHUTTER
/
--o--~-c=>-1
0
PAN HEAD
SCREW
Figure 5: 226MCD Shutter Installation
MAN0054
FLAT
HEAD
SCREW
Revised November
30,
1992
Leica Microsystems, Inc.'s Ex. 1033
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