Princeton Instruments HRS-300, Operating Instructions Manual

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Note: Certain light sources limit the access to the bottom mounting holes. In this instance,
PI provides special slotted holes in the light source housing to facilitate mounting of
the l i g h t source to the slit.
NOTE:
Check the focal plane b a c k f o c a l distance of the array detector you plan to
install. This is the distance from the front mounting surface of the array detector to
the actual CCD or diode array element. Because array detector focal distances vary, the
correct distance is crucial in order to determine if a spacer is required for proper
focus. A spacer is provided with HRS-300 spectrographs. If the detector back focal plane
distance is 0.67” or less, then the spacer should be used. If the detector back focal plane
distance falls between 0.67” and 1.00”, then no spacer is required.
Light sources fitted with light collection/focusing optics are normally factory aligned to the standard
slit.
D. Mounting Focal Plane Detectors to the HRS-300 Spectrograph
The standard mounting flange for CCDs and other array detectors accommodates detectors with a
standard PI spec-mount. As an option, PI can provide a C-Mount adapter. To mount an array detector
to the HRS-300, use the following procedure:
SPEC-MOUNT: The standard PI Spec-Mount includes three hex head bolts for securing the camera to
the HRS-300. The camera flange includes three keyhole slots that fit over the hex head bolts.
1. The HRS-300 includes a sliding tube detector that fits inside the front or side ports of the
HRS-300. A split clamp secures the sliding tube. Refer to the picture below and note the access
location for the 9/64
th
Allen wrench to loosen or tighten the split clamp.
a. Loosening or tightening the split clamp should only require ½-turn of the screw.
2. Using a 9/64
th
allen wrench, loosen split clamp screw approximately ½-turn. Gently slide
the array detector mounting flange all the way out of the HRS-300 housing. Make sure that
the sliding tube and O-ring are kept clean.
9/64
th
Allen wrench secures the split clamp