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© Haag-Streit AG, CH-3098 Koeniz, Switzerland
1500.7200631.04040
4
Operating the equipment
CAUTION
It is imperative to read the chapter "Operating
safety" before operating the equipment and to
observe its precautions.
• The height of the table must be selected to enable the patient
to obtain a firm rest for the forehead and chin.
• In order to ensure that only that part of the eye to be examined
is illuminated and to avoid disturbing glare, the height of the
light beam should be appropriately adjusted.
NOTICE
• Only use as much light intensity as required.
• The light intensity should be reduced to a minimum on
completion of each examination. This extends the life of the
light bulb and protects the patient from severe glare at the
beginning of an examination.
• Those parts of the equipment coming into contact with
patients should be cleaned with a dry cloth before each ex-
amination.
4.1 Illumination
unit
Slit width
The slit width is set with either of the control knobs (63). The
division on the left hand knob enables any given slit width setting
to be subsequently recovered; but provides no information on
the actual width of the slit light.
Slit length
The slit length is set with the lever (61).
Slit positioning
The slit image can be positioned by turning the upper part of
the illumination unit (60) from the vertical, through a range of
any given oblique positions, to the horizontal.
A scale (62) and (64) indicates the angle of the slit.
60
61
62
63
64
