AQ-00275-000, Rev. 3
5
Installation
Your DRA-CA-3300 accessory comes already assembled - all you have to do is load the unit into
the sample compartment of your spectrophotometer.
WARNING:
Do not touch the mirrors of the accessory. Fingerprints will induce optical scattering
and may reduce reflectance or transmittance of these components at certain wavelengths. Only
qualified service personnel should install reflectance accessories.
1. Turn the power to the instrument
OFF
. Remove any cell holders or other accessories
from the instrument sample compartment.
2. Slide the instrument sample compartment cover back. Remove the compartment front
panel. Note the position of the detector DB connector inside the compartment.
3. Install the alignment pin into the threaded mounting hole located at the back, right-
hand corner of the instrument sample compartment as shown in Figure 2.
4. Remove the optics dust cover from the DRA-CA-3300 by first loosening the top two
thumbscrews and then lifting the cover off. The cover should be reinstalled over the
Alignment Pin
Front Mounting Screws
Rear Mounting Screw
Sample Compartment
Accessory Base Plate
Figure 2. Mounting the accessory onto the sample compartment floor.