Coarse/Fine Focus Knobs - Nikon eclipse lv150 Instruction Manual

3

Coarse/Fine Focus Knobs

Relationship between focus knob rotation and stage vertical movement
The relationship between the direction of coarse/fine
focus knob rotation and the stage vertical movement is
shown in the figure.
• The stage moves approximately 14.0 mm per one
full rotation of the coarse focus knob.
• The stage moves 0.1 mm per one full rotation of
the fine focus knob.
• The stage moves 1 µm per one step of the fine
focus knob graduations.
• The stroke (range) of stage vertical movement is
30 mm.
Reference)
Never attempt either of the following actions, as these will damage the microscope.
• Rotating the left and right knobs in opposite directions at the same time.
• Continuing to rotate the coarse focus knob after the stage has reached the limit of its
motion.
Adjusting the torque of the coarse focus knob
The torque of the coarse focus knob can be adjusted.
To increase the torque, turn the coarse torque
adjustment ring (labeled "TORQUE→", located at
the root of the coarse focus knob) in the direction
shown by the arrow on the microscope base.
To decrease the torque, turn it opposite to the arrow.
When observing with the combination of "6x6
inch stage" and "ESD plate", the stage vertical
movement range is 11.5 mm up and 28.5 mm
down.
III. Operation of Each Part
OUT
IN 100
0
0
100
BF
DF
To increase the torque
OB J.
OF F
Torque adjustment ring
A ST OP
F. ST OP
27