Advanced Maintenance . 83
9. Align the notches of the holder with the indents in the filter wheel. You must twist the
holder clockwise to lock it to the filter wheel.
When fitted correctly, the small hole in the filter holder is close to the outer edge of the
filter wheel.
10. Refit the filter wheel to its spindle and secure it with the set screw.
CAUTION
Make sure that you tighten the set screw onto the flat of the shaft.
If the set screw is tightened onto a round portion of the shaft the filter
wheel may loosen.
11. Refit the sample holder onto the baseplate with the knurled screw.
12. Close and secure the main cover.
Refer to page 72, steps 10 to 15.
13. Select the filter you would like to use in the beam path from the Filter Wheel
drop-down list on the Setup Instrument BeamPath tab in Spectrum Software.
NOTE: If you wish to run a background scan with a filter in place, you must set the Scan
Type to Background on the Setup Instrument Basic tab, rather than using the
Background toolbar button . See the Spectrum on-screen Help for more
information.
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