BestScope BS-6000A - Operation

BestScope International Limited
10
BS-6000A/AT
3.2 Operation
3.2.1 Open Lamp-House (Fig.20)
Connect the power, turn on the main switch (figure
15) to “-”(on).
3.2.2 Adjusting the brightness(Fig.21)
T urning the brightness adjustment knob
anti-clockwise, the voltage raise, and the brightness
strengthen; turning it clockwise, the voltage decline,
and the brightness weaken.
 Using the lamp in a low voltage condition, will
prolong the use life.
3.3.3 Adjusting the Illumination Set (Fig.22)
1. Make sure the ray brightness in view field is even,
have no filament shadow. If there is filament shadow,
please adjust the Condenser Knob③ to proper
position.
2. Adjust the View field Diaphragm① and Aperture
Diaphragm② until the two Diaphragm open size is
properly. Then you can get clear image. When in
using, you need to adjust simultaneously, part
observe until to the high-point.
★ Aperture Diaphragm: The aperture diaphragm
(iris diaphragm) is designed for matching the
objective's numberical aperture, not use for
adjusting brightness. When the objective is
adjusted full of light, the Aperture Diaphragm is
in best state and the image is clear. What to be
notice is that when switch objective, the Aperture
Diaphragm size should change along with the
adjusting.
★ View field Diaphragm : Used to control view field
size, to reduce Anti- cast light and Dizzled light.
When the objective is adjusted full of light, the
ima
g
eisclearandinhi
g
h-
p
oint state.
Fig.20
Fig.22
Fig.21