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Operating Instructions for IARC-446-070 Raman Filter Chamber
2
Mounting the IARC-446-070 to Acton Series Monochromators or
Spectrographs:
Refer to Figure 3 when mounting the IARC-446-070 to Acton series monochromators or spectrographs.
1. Unpack the IARC-446-070 Raman Filter Chamber.
2. Using the 3/32” Hex wrench provided, remove the cover of the IARC-446-070.
3. Position the IARC-446-070 against the ENTRANCE SLIT of the Acton Series monochromator or
spectrograph as shown Figure 3. Align the mounting holes of the IARC-446-070 with the tapped holes in
the slit assembly.
4. Insert the four (4) 8-32 screws provided through the mounting holes and into the tapped holes of the slit
assembly. Tighten to secure the IARC-446-070 to the entrance slit.
5. The IARC-446-070 is now mounted to the Acton Series monochromator or spectrograph.
6. If there is a filter already mounted in the filter holder, re-install the cover. If a filter installation is
necessary, continue to Step 2 of the next procedure and make the installation before closing up the
chamber.
Figure 3. IARC-446-070 Layout (Top View)
Mounting a Filter inside the IARC-446-070:
Refer to Figure 4 on page 3 and the Filter Holder Assembly drawing on page 4 when completing these steps.
The standard filter holder inside the IARC-446-070 accepts 1.0” (25.4 mm) diameter filters. Use the following
procedure to mount filters:
1. Remove the IARC-446-070 access cover.
2. After loosening the two captive screws securing the filter holder, remove the filter holder from the
chamber.
3. Using the .050” Hex Wrench provided, loosen the set screw on the top of the filter holder and slide the
filter adapter out.
4. If installing a 1.750” outside diameter filter/filter assembly, proceed to Step 6. If installing a 1.0” outside
diameter filter proceed to Step 5.
5. Remove one of the retaining rings from the adapter. Install the filter/filter assembly. Replace the
retaining ring and tighten. Use care not to cause any damage to the filter when tightening the set screw.
6. Install the filter/filter assembly into the filter holder and tighten with the set screw.
7. Re-install the filter holder tightening the two captive screws.
8. Replace the access cover.