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Chapter 3 SCT 320 Operation 23
2.13.2 Removing an Internal Shutter
If you are planning to use a PI-MAX detector (or other detector without an external shutter
control connector) and the IsoPlane has an internal shutter, you will either have to remove the
shutter or control the shutter via a Princeton Instruments SHC-EXT external shutter control box
if one is available. This is because there is no way for these detectors to keep the shutter open or
to open the shutter during an acquisition. The following instructions step through the removal
process.
1. Using the 9/64” hex wrench, unscrew the four
socket head screws that secure the Turret
Compartment cover to the top of the IsoPlane.
Lift the cover and screws off of the IsoPlane
and set them aside.
2. Remove the grating turret. If you are not sure
how to do this, refer to Section 2.14 Turret
Removal on page 24.
3. Use extreme care so as not to touch the
grating surfaces.
4. After removing the turret and placing it in a safe location, reach
into the compartment and unplug the connector on the shutter
cable from the connector mounted to the base of the IsoPlane by
pulling it straight up.
5. Using the 9/64” hex wrench, loosen but do not remove the two
hex head socket screws that secure the shutter housing to the wall
of the IsoPlane.
6. Lift up and pull out on the shutter to remove it.
7. Store it in a safe location.
8. Re-install the grating turret. If you are not sure how to do this, refer to Section 2.7 Turret
Installation on page 12.
9. Place the Turret Compartment cover on the spectrograph. Replace and tighten all of the
cover screws.
Shutter
Shutter Cable
Connector
Screws