Use Of The Microscope In Brightfield (Transmitted Light); General Switch On; Control Keyboard; Brightness Adjustment - Optika B-1000 Series Instruction Manual

10. Use of the microscope in Brightfield (transmitted light)

10.1 General switch on

To activate the transmitted light illuminator, put the main switch
①, located on the left side of the stand, to the position "1". (Fig.
18)

10.2 Control keyboard

B-1000 illumination can be managed through the keyboard
placed on the left of the stand. (Fig. 19)
• ON-OFF (②): press this key (after switching the main switch
on "1") to turn ON or OFF the microscope LED.
• BOOST (③): press this button in order to increase the bright-
ness (useful for high-magnification objectives or very opaque
specimens).
Do not enable boost mode while observing with low mag-
nification objectives (4x, 10x) with fully open diaphragm:
the high brightness may hurt user's eyes.
• AUTO OFF (④): if you want the illuminator to switch off auto-
matically, press this button until 15, 30 or 60 minutes delay is
set. After this period of time, the light will turn off. You have to
press the ON-OFF button to turn it on again.
• The control keyboard only works with transmitted light. It
has no effect on fluorescence reflected light illumination.

10.3 Brightness adjustment

Use the brightness adjustment dial ⑤ on the left side of the mi-
croscope to increase or decrease the light intensity on the spec-
imen. (Fig. 20)
②
④
⑤
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①
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③
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