Haag-Streit BI 900 Instructions For Use Manual - page 13
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DEUTSCH
ENGLISH
FRANÇAIS
ITALIANO
ESPAÑOL
NEDERLANDS
PORTUGUÊS
SVENSKA
DEUTSCH
ENGLISH
FRANÇAIS
ITALIANO
ESPAÑOL
NEDERLANDS
PORTUGUÊS
SVENSKA
© HAAG-STREIT AG, 3098 Koeniz, Switzerland - HS Doc. no. 1500.7220505-04010 – 2015 – 08
5.7 Settingthefilters&diaphragms
a. Open
b. Greyfilter(10%)
c. Redremovalfilter
d. Reserveopeningforfilterofchoiceø15mm(0/–0.2),thickness2.5mm
e. Fixation star
f. Aperturesof8,5,3,2,1and0.2mminø
g. Display of slit length adjustment from 1 to 14 mm
h. Bluefilter
(a)
(e)
(f)
(g)
(h)
(b)
(c)
(d)
8 5 3 2 1 0.2
5.8 Fixation star
•
Turning the diaphragm disc as far as it will go to the left switches on
thefixationstarandthesymbol"S"appearsinthewindow.Thisstaris
projected onto the fundus at the back of the eye in certain examinations
and is visible to the patient at the same time, who is asked to focus on
the hole in the center of the star. This allows the examiner to see where
the patient's vision is most focused.
•
Atypicalapplicationofthefixationstarisduringlasertreatmentsclose
to the macula. Similarly, it is also possible to identify microstrabismus
withtheprojectionofthefixationstar.Thefixationstarisusuallyused
witharedremovalfilter.
5.9 Microscope and eyepiece
95. Two objective-lens pairs
96. Leverforyellowfilter
97. Cover cap for the accessories base
98. Serial number microscope
99. 10x or 25x eyepiece
100. Lens-changing lever
101. Eyepiece retaining screw
95 96
97
98
99
100
101
5.10 Reduced operation
In order to ensure that the light sources will have a long lifespan, the power of the
periphery or background illumination is reduced somewhat once the maximum op-
erating temperature has been reached. Full power can be used again after a short
period of time for it to cool down. This operating state is only reached if both light
sourcesareswitchedontogetherforalongperiodoftimeoutsidethespecified
temperature range.
5.11 LED display
Illumination head
a)
b)
c)
Periphery or back- ground illumination
Polarity
Slit lamp illumination
a) b) c)
Operating status
Standby mode
Green, short
flashes
X
Green,shortflash-
es
Normal operation
Slit and periphery or background illumi-
nation on
Green
X
Green
Only slit illumination on
Green, short
flashes
X
Green
Only periphery or background illumina-
tion on
Green
X
Green, short
flashes
Reduced periphery of background il-
lumination operation
High LED temperature, thus reducing
periphery or background illumination
operation
Green,flashing
X
Green,flashing
5.12 LED display power supply
Normal operation
Green
01-IFU_BI900-7220505-04010_eng.indd 13
12.08.2015 14:38:02