Section 5 Operating Instructions
5-7
5.14 Brightness Settings and Memory
There are nine levels of brightness which can be selected using the and buttons while the power is on.
The level of brightness is indicated by the green indicator lights located on the keypad/control panel. An
indicator light will light up for each increase in brightness. See Figure 5-6.
The button is used to increase brightness setting. Each press will increase light source brightness. Any
additional press of will have no effect once the highest setting is reached.
The button is used to decrease brightness setting. Each press will decrease light source brightness. Any
additional press of will have no effect once the lowest setting is reached.
Each button performs its intended function when the button is pressed. Holding a button has no effect. For
example to increase the brightness from minimum to maximum, the user must press and release the
button eight times. Pressing and holding the button will only increase the brightness to the next higher
setting.
The light source has a recall feature. This feature remembers the last level of brightness used before being
powered off. Any time the light source is powered on, the brightness level will be at the last level used.
5.15 Filter
The LED light source emits white light, which includes all the colors of light combined in the visible light
spectrum. Depending on what area of the patient is illuminated, a lter may be used to enhance the
observation through the microscope. The LED light source has two kinds of lters: an amber lter (composite)
and a green lter.
The use of the amber lter (composite) helps reduce the emissions of wavelengths below 520 nm (blue light)
which are used to cure dental resins.
The use of the green lter provides a higher contrast of tissue by reducing the emissions of wavelengths
around 650 nm (red light).
See M A801-LED Owner’s Manual 110-013-081 for operation information.
Figure 5-7 LED Filter
Filter Lever DOWN
for
NO FILTER
Filter Lever UP
for
GREEN FILTER
Filter Lever CENTER
for
AMBER DENTAL COMPOSITE
FILTER
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