Chapter 2
Individual Operations
37
Chapter 2
Individual
Operations
2.3
Adjusting the Rotating Torque of the Coarse Focus Knob
Adjust the rotation torque of the coarse focus knob (rotation
resistance) by turning the torque adjustment knob (TORQUE)
located at the base of the coarse focus knob. If the torque is set
too low, the stage may descend under its own weight.
Adjusting the Rotating Torque of the Coarse Focus Knob
Operation of torque
adjustment knob
Rotation torque
When turned in the
direction of the arrow
Rotation torque is increased.
When turned in the
direction opposite to the
arrow
Rotation torque is decreased.
T
O
RQ
UE
CLAMP
POWER
0
90
80
70
60
50
4
0
30
20
10
Adjusting the torque of the focus knobs
2.4
Refocusing
By turning the coarse focus clamp ring after focusing on the
specimen, you can prevent the stage from being raised further
with the coarse focus knob. The movement of the stage with the
fine focus knob will not be locked.
Using this function, you can refocus with ease by simply turning
the coarse focus knob to the limit. This is helpful when switching
between similar specimens during the observation.
(1) With the focus set on the specimen, tighten the coarse focus
clamp ring by turning it approximately 3/4 of a rotation in the
direction of the arrow on the base of the microscope. This will
clamp the movement of the coarse focus knob.
(2) When replacing the specimen, lower the stage by using only
the coarse focus knob.
(3) After replacing the specimen, use only the coarse focus knob
to raise the stage slowly until it reaches the upper limit.
At the upper limit, the focus should be more or less on the
specimen. Use the fine focus knob for finer adjustment.
If you do not wish to use the refocusing function, be sure to
loosen the coarse focus clamp ring to the limit (turn it in the
direction opposite to the arrow on the base of the
microscope until it hits the limit).
CLAMP
T
O
RQ
UE
ND4
ND8
OUT
IN
Refocusing
Coarse focus clamp ring
Coarse focus torque adjustment knob
Makes knob
harder to turn.
