20
X-Cite
®
120PC Q User Guide
035-00328R rev. 4
9
Adjusting the Light Output Intensity
9.1.1 Your X-Cite
®
120PC Q system includes an iris adjustment to control the amount
of light output from the unit. Adjustments to the output can only be made when
the X-Cite
®
120PC Q unit is in Intensity Mode.
9.1.2 Set your X-Cite
®
120PC Q to Intensity Mode by pressing the Mode button until
the LED display shows 3 digits “XXX”. The three digit number shown will indicate
the iris setting as a percentage of maximum.
9.1.3 Press the
START
/
STOP
button to manually open the shutter. The open LED
indicator on the front panel will illuminate.
9.1.4 Press the up button to increase the light output or press the down button to
decrease the light output. The percentage of the iris opening displayed will
increase or decrease to 0%, 12%, 25%, 50% or 100% each time the up or down
button is pressed.
9.1.5 Press the start /stop button to manually close the shutter. The open indicator
LED will turn off once the shutter has closed.
Warning:
UV light and high levels of visible light will be emitted from the light guide.
Opening the shutter on the X-Cite 120 PC without the light guide properly
installed in the unit and in the microscope can increase your risk of
exposure to UV light.
Note:
No light will be emitted from the unit when the iris opening is set to 0%
or if the
START
/
STOP
button has not been pressed to activate the
shutter.
Note:
While in Intensity Mode, pressing the
START
/
STOP
button will manually
open the shutter. The shutter will remain open until the
START
/
STOP
button is pressed once again to close the shutter. Use this mode to
override the timer function if manual operation of the shutter is required.
Note:
When the unit is connected to a PC or the front panel has been
manually locked, exposure settings can not be adjusted from the
X-Cite 120 PC front panel buttons.
