Optika Italy B-150V Serie Manuel D'instructions page 12

9. Use of the microscope
9.1 Light intensity adjustment
Operate on the light intensity adjustment dial
OFF the microscope and to increase / decrease the illumination
voltage. (Fig. 8)
9.2 Coarse focus tension adjustment
• Adjust the tension using the provided tool.
The coarse knob tension is pre-set in the factory.
1. To modify the tension according to personal's needs, rotate
the ring using the provided tool (Fig. 9).
②
• Clockwise rotation increases the tension.
• If the tension is too loose, the stage could go lower by itself or
the focus easily lost after fine adjustment. In this case, rotate
the knob in order to increase the tension.
9.3 Stage
All models except B-151 series
Stage accepts standard slides 26 x 76 mm, thickness 1,2 mm
with coverslide 0,17mm. (Fig. 10)
1. Open the spring arm of the slide holder
from the front on the stage.
2. Gently release the spring arm of the slide holder.
• A sudden release of the spring arm could cause the fall-
ing of the slide.
9.4 Use of diffusing filter
All models with Digital head
In order to ensure an even illumination with low magnification
objectives, it is strongly suggested to use a diffusing filter to be
placed in the filter holder placed under the condenser.
1. Rotate the filter holder
2. Insert the diffusing filter
3. Put the filter holder into the light path.
①
and place the slide
③
placed below the condenser.
④
in its place. (Fig. 11)
⑤
to turn ON /
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②
③
④
⑤
①
F ig. 8 F ig. 8
F ig. 9 F ig. 9
F ig. 10 F ig. 10
F ig. 11 F ig. 11