9
CX23
Adjust the focus
Face to the microscope from the side and rotate the coarse adjustment
knob a in the direction of the arrow so that the objective c is as
close as possible to the specimen.
While observing the specimen through the eyepieces, slowly rotate the
coarse adjustment knob a in the opposite direction to the arrow to
lower the stage, and adjust to the appropriate brightness.
When the specimen comes into view, rotate the fine adjustment knob
b to obtain the precise focus.
1
2
3
3
Adjusting the focus
Specimen position scale
} By reading and taking a note of the X-axis and Y-axis scales
(coordinates), the original position once observed in the specimen can
be retrieved even after the movement of the specimen.
The X-axis scale should be read at the position a on the specimen
holder.
The Y-axis scale should be read at the position of index line b .
1
2
Working distance (WD)
} The WD means the distance between the objective and the
specimen when precise focus of the specimen is obtained.
Objective
magnification
4X
10X
40X
100X
WD (mm)
27.8
8.0
0.6
0.13
Adjusting the tension of the coarse adjustment knob
The tension of the coarse focus adjustment knob can be adjusted.
Insert the tip of a large flat-blade screwdriver into the groove b on
the tension adjustment ring a and rotate the ring.
Rotating it clockwise (in the direction of the arrow) increases the tension
and counterclockwise decreases the tension.
If the stage descends by its own weight or the focus obtained with the
fine adjustment knob c is lost soon, the tension is set too loose. In
this case, turn the tension adjustment ring a in the direction of the
arrow to increase the tension.
1
2
c
WD
a
c
b
b
a
b
a
Содержание CX23
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