Part
Item
Standard
Method
Coarse / fine
focus
adjustment knob
knob
<CKX31/CKX41>
6N - 25N ( 600g - 2500gf)
Tie a string around the knob and then
measure the tension when the knob
is rotated.
Tension gauge (30N): OT3223
adjustment
Coarse focus
Fine focus
adjustment knob
tension
0.3N - 1.2N ( 30g - 120gf)
Tie a string around the knob and then
measure the tension when the knob
is rotated.
Tension gauge (3N): OT3225
Coarse / fine
adjustment knob
movement
Confirm that there is no rough feeling.
Focusing guide
unit
Working force
0.2N - 0.5N ( 20g - 50gf)
difference
Working force
Confirm the working force while
pushing inner guide.
Tension gauge (3N): OT3225
in moving range
0.2N (20gf)
Confirm the working force difference
in moving range.
Movement
Cashing or roller should not be stopped.
There is no play between the inner
guide and the outer guide.
Stage
Squareness against
optical axis
0.3/75mm
Set the SKN0003 to the revolving
nosepiece and confirm the front-back,
left-right squareness of the stage.
(Not go through 0.3mm thickness)
Thickness gauge: OT1949
Part
Item
Standard
Method
Exit pupil center
Within 10% of objective’s
exit pupil diameter
Combining the centering telescope (KN0023),
an objective (PlanC10X), UIS observation tube
(BXKN001) and microscope frame (product),
read the displacement between the exit pupil
center of the objective and cross hairs center
of centering telescope (KN0023).
Pafocality
+ / - 0.3mm
Combine the standard eyepiece (KN0048; with
adapter-1and adapter-2 ), 3mm ring adapter
(KC2040), the focusing telescope (FT-36),
the standard objective(KN0041), BXKN001
and microscope frame (product).
Focus on the specimen in KN0041 and check
the parfocality using the helicoid scale
(1 graduation = 0.1mm) of the KN0048.
Absolute optical axis
Combine the standard eyepiece (KN0048; with
adapter-1and adapter-2 ), 3mm ring adapter
Frame
section
BXKN001 and microscope frame (product).
Read the displacement between specimen center
in KN0041 and the visual field center using
the reticle scale (1 graduation = 0.1mm) of
KN0048.
0.1mm or less on the image
surface
* In parfocality adjusument, the washer (selection: 6 pcs. available) is used for CKX41 (same as CKX31).
B-2
CKX31/CKX41
B. INSPECTION STANDARD
tension
<CKX41>
(KC2040), the standard objective (KN0041),
