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© Haag-Streit AG, CH-3098 Koeniz, Switzerland
1500.7200631.04040
Summary operating instructions
1. Move the chinrest (6) up or down with the adjustment screw
(7) until the eyes of the patient are level with the black mark
on the headrest column (4).
2. Tighten the fixing screw of the eye-piece (25). Focus the
eye-pieces to suit your refraction by turning the knurled rings
and then set to your interpupillary distance.
3. Turn on illumination with the green toggle-switch on the
power supply.
4. The brightness can be progressively set and adjusted by
means of the potentiometer (18).
5. Rotate the control lever (31) until the light beam is at eye
level.
6. Holding the control lever (31), inclined towards yourself, move
the instrument base until the slit appears to be approximately
in focus on the cornea. This coarse setting is achieved with
the naked eye. Fine adjustments are obtained by rotating
and tilting the lever while observing the image through the
microscope (24).
7. The slit width is adjusted to the left or right by means of the
knob (17), which also adjusts the angle between the microscope
and the illumination unit.
8. The slit image can be shown in the vertical, horizontal or
slanted positions, as required, by turning the illumination unit
(lock engagement at 90°; stop engagements at 0° and 180°).
The number of degrees can be read-off on the scale (11).
9. The magnification of the microscope in the Slit Lamp BD
900
®
is altered by changing the lens with the lever (26) or by
exchanging the eye-pieces.
10. For general observations over a wide field the grey filter
is placed in position by means of lever (9), and the slit is
opened wide.
11. The video output facility (14) can be used for documen-
tation.
12. The contrast enhancing filter, yellow (22) can be engaged
to obtain the fluo-image display.
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6
7
9
11
22
24
25
26
14
17
18
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