9
CX31-P
Fig. 7
Fig. 6
2 Using the Simplified Pre-focusing Knob
(Fig. 7)
# This mechanism does not work when the U-CTAD centering adapter
for objective lens is used.
}The pre-focusing knob controls the mechanism for preventing collision
between the specimen and objective.
1. After bringing the specimen into focus, turn the pre-focusing knob 1 of the
focusing module so that the pre-focusing mechanism hits the stage holder.
2. To provide a certain margin for focusing, turn the knob by about a half
turn backward from the stopped position.
# If the function of this mechanism is not required, set the pre-focusing
knob 1 at the UP-end position.
1
3
1
4-2 Focusing Module
1
Adjusting the Coarse Adjustment Knob Rotation Tension
(Fig. 6)
1. The tension of the coarse focus adjustment knob is adjustable. Insert
the tip of a large flat-blade screwdriver into the groove 2 on the tension
adjustment ring 1 and rotate the ring. Rotating it clockwise (in the direction
of the arrow) increases the tension and counterclockwise decreases the
tension.
2. If the stage descends on its own or if the specimen gets out of focus
quickly even when it is brought into focus using the fine adjustment
knob 3, it means that the tension of the coarse adjustment knob is too
low. Turn the ring 1 in the direction of the arrow to increase the tension.
4-3 Observation Tube
1
Adjusting the Interpupillary Distance
(Fig. 8)
While looking through the eyepieces, move both eyepieces until the left
and right fields of view coincide completely. The position of index dot ·
indicates the interpupillary distance value.
}Note your interpupillary distance so that it can be quickly duplicated.
Fig. 8
2
Fig. 9
2
Adjusting the Diopter
(Fig. 9)
1. While looking through the right eyepiece with your right eye, turn the
coarse and fine focus adjustment knobs to bring the specimen into
focus.
2. While looking through the left eyepiece with your left eye, rotate only the
diopter adjustment ring 1 to focus on the specimen.
1
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