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INSTRUCTIONS FOR USE (continued)
OPERATION
NOTE: Lock the base whenever the lamp is not in use.
12. The slit width can be adjusted by rotating the Slit Width/
Rotation Knob on either side of the instrument. Refer to
figure-15.
13. The angle between the illumination system and the micro-
scope can be varied between 0° and 90° to either the left
or to right. Refer to figure-16.
14. The illumination angle is indicated in the scale of the slit lamp
arm. Refer to figure-17.
15. Magnification is altered by using lever on the Magnichanger.
Refer to figure-16.
SLIT LENGTH
The Slit length is adjusted by rotating the Slit Length Dial.
The dial has seven stops for adjustments. They are 1, 2, 3, 5, 8, 10
and 14. They index into place. Refer to figure-18.
FILTER DIAL
The Filter Dial has four positions that index into place, and
are color coded to indicate the active filter. Refer to figure-18.
The color coded index stops are as follows:
Blue dot = Cobalt Blue
Yellow dot = Open
Green dot = Red-free
SLIT ROTATION
Slit Rotation is achieved by Rotating the Slit Rotation Ring. Refer
item no. 29 on Page 8. The degree of rotation is indicated by the
Slit Rotation Scale above the slit body. Refer to figure-19.
8126700-795
Figure-16 Illumination Angle
Figure-17 Illumination Angle Scale
SL 20i
Magnification
Lever
Slit Length Dial
Figure-18 Filters and Slit Length
Slit Rotation
Scale
Figure-19 Slit Rotation Scale
Issue 1.0
Printed on June,2019
SL 20i
Filter
Dial
13
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