Applied Photophysics Chirascan LD, User Manual

Page: 13 / 30

Document 4207Q258 V3.00 January 2018 Page 13 of 30
Chirascan Couette Cell LD Accessory User Manual
Figure 2.2: The linear dichroism alignment jig
The calibration jig is shown in Figure 2.2 . The jig consists of the mounting assembly and the removable holder
for the silica plate (Figure 2.3 ). The plate holder can be mounted in the assembly in five positions: vertically up
or down, horizontally left or right, and the neutral position.
Figure 2.3: The holder for the silica plate
To install the alignment jig, remove any installed accessories (Section
2.1 ), including the detector, although
not the locking ring.
Do not allow any item, including any component of the alignment jig or the accessory to come
into contact with the front end of the detector while the detector is connected and powered up,
as this may cause an electrical short leading to serious injury to the user and damage to the
detector.
Install the alignment jig as in Figure
2.4 . Place the mounting plate of the jig over the support plate in the sample
chamber. The plate seats down with the holes at the front left and rear right locating over the corresponding
pegs on the support plate. When the plate is seated down, secure it in place by tightening the two captive
thumbscrews positioned at the right front and left rear of the mounting plate. Reinstall the detector, ensuring
that the tip of the detector is at least 35 mm from the plate holder (the shoulder of the detector should be flush
with the front of the locking ring).