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PBL200051, Rev J
72 Operation
4 Verify that the laser is in standby mode.
5 Turn on the slit lamp illumination.
6 Look through the slit lamp eyepieces at the paper target.
7 Set the slit to vertical.
8 Focus each eyepiece until the target is seen clearly.
9 With the illumination set to the narrowest slit, swing the illumination tower
from side to side and verify that the slit does not move on the target.
10 Open the slit and set the illumination to the smallest round aperture.
11 Set the magnification to the middle setting and view the target through the
binoculars. The aiming beam should be centered in the field of view and in
the center of the illumination aperture.
At high magnification settings, the spot may not appear exactly in the center
of the field of view, but this will not affect the beam positioning accuracy.
WARNING - Ensure that there are no reflective surfaces behind the paper
mounted on the forehead assembly.
12 Select SLT mode.
13 Select an energy of approximately 1 to 2 mJ.
14 Select the Ready mode.
15 Depress the joystick pushbutton or the footswitch to activate the laser.
16 Inspect the burn mark through the binoculars. Verify that the burn mark on
the target photographic paper is coincident with the aiming beam spot. A
round, 400 µm burn spot should be visible if the microscope is properly
focused on the target.
WARNING - If the laser burn mark and the aiming beams are not coincident,
do not use the laser on patients as it may cause serious injury. Contact your
local Lumenis representative.
17 Repeat the test as necessary.
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