CH10/CH20
B. INSPECTION STANDARD
B-1
1. Inspection Items and Methods
1-1 Microscope frame and stage
Part
Item
Standard
Method
Illumination
Illumination center
Deviation to
optical axis of
collector lens:
within 10%
Set the centering telescope (KN0029)
to the right sleeve, and read the
displacement between the optical axis
of collector lens and the cross hairs
center of centering telescope.
Coarse/fine
adjustment
Coarse adjustment
knob rotation
force
5.9 N {600g} or
less
Tie a string around the knob, rotate it to
measure the working force with a
tension gauge.
Fine adjustment
knob rotation
force
0.14 -0.44N
{15 - 45g}
Condenser
holder
Condenser knob
rotation force
2.5 - 5N {250 -
500g}
Tie a string around the knob, rotate it to
measure the working force with a
tension gauge.
Revolving
nosepiece
Rotation force
0.78
±
0.57N {80
±
60g}
Attach an objective to the revolving
nosepiece, and measure the rotation
Click removing
force
3.92
±
1.96N
{400
±
200g}
force with a tension gauge.
Stage
X/Y-knob rotation
force
X = 0.2 - 0.98N
{20 - 100g}
Y = 0.49 - 1.96N
{50 - 200g}
Tie a string around the knob, rotate it to
measure the working force with a
tension gauge.
Clip holder
clearance
Pass through 0.2
mm thickness
Stop at 0.7 mm
thickness
Measure the clearance between the
stage and the clip holder with a
thickness gauge.