OPTO-EDU A16.2615-L, Инструкция по эксплуатации, Страница: 8 / 23

7
3.1.1 Turn On Light Source
(
Fig.5
)
a.
Turn potentiometer knob
②
to the minimum, turn on power switch to
①
position I
(ON).
b.
Rotating potentiometer knob
②
to increase and decrease brightness for good
illumination .
c.
Push button
○
4 to open
infrared sensors switch,if you leaving the Infrared sensors
window for 10 minutes , it will be off automatically. If someone closing to it ,the
bulb will turn to bright again.
Fig.5 Power Switch
3.1.2 Aperture Diaphragm ( Fig.6 )
Gently moving diaphragm lever ① to adjust aperture diaphragm for best image contrast .
Fig.6 Adjustment of Aperture Diaphragm and Placement Fig.7 Adjustment of Field Diaphragm and filament
Of filter
3.1.3 Adjustment of Field Diaphragm and Lamp Filament
a
．
Adjust field diaphragm lever
○
1
to make diaphragm smaller until see the field.
( Fig.7
)
b
．
Adjust phase contrast condenser liftable knob
○
3
( Fig.4 )
for for clear field image.
3. Operation
3.1 Main Body