Princeton SP-300i, SP-500i User Manual

15 Discovery Way, Acton, MA 01720

Phone: [phone], Fax: [phone]

Web Site:

www.piacton.com

Operating Instructions

for

Triple Grating Turrets

SP-300i/500i

Ver 2.0

Supplemental Instructions for Acton Models

With Kinematically Mounted Triple Grating Turret

This Acton series monochromator/spectrograph is supplied with two kinematically mounted triple
grating turret assemblies that are interchangeable in the monochromator/spectrograph without
re-alignment.

To interchange the triple grating turrets in the monochromator/spectrograph, refer to the section
below labeled “Grating Turret Interchange”. For general operation of the Acton series

monochromator/spectrograph, refer to the enclosed standard Acton monochromator/
spectrograph manual.

CAUTION: THE OPTICAL SURFACES IN THE MONOCHROMATOR/SEPCTROGRAPH
ARE EXTREMELY DELICATE AND CAN BE PERMANENTLY DAMAGED BY CONTACT
WITH ANYTHING. DO NOT TOUCH, TALK OR BREATHE ON THE OPTICAL SURFACES.

Grating Turret Interchange
A) Changing Grating Turrets:

The following procedure is recommended for interchanging grating turrets.
Observe proper optical handling procedures.

1. Locate the storage container with the grating turret to be installed. The turrets
are marked

Turret I contains the following 3 gratings:
Position 1: G/mm @

Position 2: G/mm @
Position 3: G/mm @

Turret
Position 1: G/mm @

Position 2: G/mm @
Position 3: G/mm @

Turret
Position 1: G/mm @

Position 2: G/mm @
Position 3: G/mm @

I, II & III as indicated in Figure 1 in this section.

II contains the following 3 gratings:

III contains the following 3 gratings:

Become familiar with the components as labeled on Figures 1, 2 and 3 in this
section.

2. Scan the instrument to grating #1 and the highest wavelength position.

3. Place the monochromator in a clean, dust free area.

4. Remove the screws from the monochromator access cover and remove the
access cover. Become familiar with the grating turret and its components.

5. Locate a 9/64 ball end hex driver (Bondhus #9/64)*. Refer to Figure #3 and
with the 9/64 ball end hex driver, loosen the turret clamping screw #1.
(NOTE: All 3 turret clamping screws are captive). Loosen the turret clamp
screw #2 and then #3.

6. Use extreme care so as not to touch the grating surfaces and grasp the top
plates of the grating turret, refer to Figure 2. Lift the grating turret straight up
off the grating spindle assembly. If the turret cannot be lifted up, assure the 3
clamping screws are disengaged from the grating spindle assembly.

7. Place the removed grating turret assembly on a clean surface.

8. Remove the plastic cover from the grating turret storage container. Loosen
the 3 grating turret clamping screws. NOTE: These screws are captive.

CAUTION: Do not hit the grating surfaces as permanent damage will be
caused.

9. Carefully grasp the grating turret by the top plates. CAUTION: Do not touch

the grating surfaces. Lift the grating turret out of the storage container.

10. Locate the grating turret # on the grating turret assembly. Assure the

monochromator is as grating #1 and highest wavelength position. Refer to
Figure #1 and place the grating turret on the grating spindle with the turret #

located as shown.

11. Assure the turret is properly seated, the ball in the cone hole and the rod in

the vee groove.

12. Lightly tighten clamp screw #1, then #2 and #3. (NOTE: To assure maximum

reproducibility, the clamping screws must be tightened in this sequence and
to 3 inch pounds of torque.) Tighten screw #1, to 3 inch pounds of torque,
then #2 and #3. The grating turret is now installed.

13. Place the access cover on the monochromator. Replace and tighten the 8
cover screws.

14. Install the removed grating turret into the storage container and tighten the 3

clamp screws. Replace the plastic cover.

IN T E R C H A N G I N G TU R R E T S

FIGURE 1

Top Plate (1 of 3)

Grating (1 of 3)

Cone Hole

Location of Turret #1 or #2,

or red dot

FIGURE 2

Turret Clamping Screw (1 of 3)

Turret Clamping

Screws

Ball

Rod

Vee

Groove

Flat

Grating Spindle

Assembly

Optional Filter

Wheel Assembly

FIGURE 3

Location of Turret #

or Red Dot

Location of Clamp

Screw #2

Location of Clamp

Screw #1

Location of Clamp

Screw #3