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Chapter 2--Operation 13
Manual Slit Width Adjustment
The slit width of the bilateral slit assembly is adjustable from 0.010 millimeters to 3 millimeters (10 to 3,000 µm)
by a micrometer located on the top of the slit housing. The micrometer knob is graduated in 0.010 millimeter (10
µm) increments.
Each clockwise revolution of the micrometer knob increases the slit width 0.25 millimeters (250 µm). For
maximum reproducibility, the slit width should be set in a clockwise direction (increasing slit widths) each time it
is changed. Refer to the drawing below.
The micrometer knob should not be rotated below a reading of 0.00 or above 3.00. A micrometer setting of less
than 0.010 millimeters (10 µm) should not be used, because a stop is provided to prevent the slit jaws from
contacting each other.
WARNING
Damage may be done if the slit jaws are opened more than 3.0 mm.
Figure 2-9. Slit Width Settings of 0.200 mm and 1.38 mm.