Scan Optics SO-801 Manual de usuario
SO-801
HAND-HELD SLIT LAMP
SO-801
SO-801
HAND-HELD SLIT LAMP
User Manual
Scan Optics
University of Adelaide Research Precinct
32 Stirling Street, Thebarton
SA 5031, Adelaide, Australia
Tel: 61 (8) 8234 9120
Fax: 61 (8) 8234 9417
Home Page: http//www.scanoptics.com.au
SO-801 Hand-Held Slit Lamp User Manual
PARTS LIST
Please check that all parts listed are present. In the case of any
discrepancy, advise Scan Optics immediately.
STANDARD PARTS
Slit lamp head
Battery handle
Spare lamp
Battery charger
Spare battery
User Manual (this manual)
OPTIONAL SPARE PARTS
SO-805 Spare Battery Pack
SO-803 Lamp
Version 6.0 Page 3 of 12
SO-801 Hand-Held Slit Lamp User Manual
CONTENTS
Use of Instrument ......................................................................... 5
Battery Handle ................................................................................ 8
Recharging the Battery ............................................................ 8
Battery Charging Safety ............................................................ 8
Battery Safety ................................................................................ 9
Battery Capacity .......................................................................... 9
Replacing the Battery ................................................................... 10
Lamp Replacement ................................................................... 11
Specifications.................................................................................... 12
Version 6.0 Page 4 of 12
SO-801 Hand-Held Slit Lamp User Manual
INSTRUCTIONS AND SPECIFICATIONS
Please read the following information carefully. Scan Optics is
responsible for the safety, reliability and performance of the equipment
only if it used in accordance with these instructions.
USE OF THE EQUIPMENT
1. Turn the instrument on with the lower (black) knurled ring.
2. Select the appropriate aperture. The slit lamp has three apertures
which can be selected by turning the upper (silver) knurled ring.
These apertures are:
•Disk: 3 mm diameter. This provides a high intensity beam for
maximum reflected scatter.
•Slit: 0.3 mm x 12 mm. This is used for examination of the
corneal stroma.
•Rectangle: 0.75 mm x 2.1 mm. This is used for examination of
the corneal surfaces. It also provides separated images of the
corneal and iris/lens surfaces for the detection of anterior
chamber flare.
Version 6.0 Page 5 of 12
SO-801 Hand-Held Slit Lamp User Manual
3. Check the eyepiece setting. The eyepiece consists of two optical
elements, and is designed for very high image quality. The eyepiece
is adjustable for the refractive error of the user. To adjust the
eyepiece, first move the slit lamp so that the slit itself is focussed
sharply on a white surface. (The slit image is formed approximately
40 mm from the eyepiece.)
Look through the eyepiece. Rotate the eyepiece cell to move it
forwards or backwards in its thread until the slit is clear. Take care
not to touch the surface of the eyepiece lens.
The eyepiece lens is already correctly adjusted for an emmetrope
when shipped from Scan Optics. For a myope, the eyepiece cell
should be further forward (that is, the eyepiece lens should be closer
to the slit image). For a hypermetrope, the lens barrel should be
further back from the slit image. The amount of adjustment needed is
approximately 1.3 mm for each D of refractive error.
Version 6.0 Page 6 of 12
SO-801 Hand-Held Slit Lamp User Manual
4. Rotate the eyepiece bracket for left or right eye viewing as
appropriate.
5. Place the slit image on the cornea of the patient, and then bring the
examiner’s eye to the eyepiece. This allows easier orientation than if
the instrument is brought to the examiner’s eye first.
6. Select the appropriate filter for the projected light by rotating the
thumb wheel. The options are:
Red free filter: This filter appears green
Blue filter: This filter is suitable for viewing areas which have
been treated with Fluorescein drops.
No filter
Please ensure that the filter is correctly engaged in position (a
definitive ‘click’ will be heard) otherwise the slit may be partially
obscured.
Version 6.0 Page 7 of 12
SO-801 Hand-Held Slit Lamp User Manual
BATTERY HANDLE
The battery pack in the Battery Handle will operate for approximately 45
minutes when fully charged. To preserve the life of the battery pack,
make sure the instrument is switched off when not in use.
RECHARGING THE BATTERY
The battery is recharged from a mains power supply. First check that the
mains supply voltage corresponds with the voltage marked on the battery
charger plug. If the voltage is correct, unscrew the bottom of the battery
handle and remove the battery by pulling it out. Place the battery in the
recharger unit with the black cap protruding uppermost. One or two
batteries may be recharged at the same time. The battery recharge time is
3 hours regardless of whether one or two batteries are being recharged. In
order to prolong battery life, do not recharge the battery for more than
three hours.
BATTERY CHARGING SAFETY
Scan Optics SO-805 batteries and SO-804 battery chargers should only be
used in conjunction with each other. Do not charge the battery if the
temperature is above 40 °C (105ÿF) or below 4 °C (40ÿF). Damaged
batteries or a damaged recharger should never be used. Do not
disassemble the charger. Do not immerse the charger or use the charger
in wet or damp conditions at any time. While charging, it is normal for
the transformer on the charger plug to hum and the batteries and charger
to become warm. Unplug the charger while not in use.
Version 6.0 Page 8 of 12
SO-801 Hand-Held Slit Lamp User Manual
BATTERY SAFETY
Do not store or carry the battery so that metal objects can contact the
exposed metal end. The red battery caps supplied may be used to protect
the end of the battery while it is not in use. Remove the battery cap
before placing the battery in the slit lamp or in the charger. Do not
attempt to disassemble the battery. Batteries should not be disposed of by
incineration. If battery liquid gets in your eyes, flush them with clean
water for a minimum of 10 minutes and seek immediate medical
attention. The battery liquid is a 25 - 35% solution of potassium
hydroxide.
BATTERY CAPACITY
The capacity of modern nickel cadmium batteries is not often affected by
the battery discharge “memory”, and so it is not necessary to fully
discharge the battery each time before charging. However, if the battery is
stored for a long period it may be necessary to fully discharge and
recharge it a few times to restore full capacity.
Version 6.0 Page 9 of 12
SO-801 Hand-Held Slit Lamp User Manual
REPLACING THE BATTERY
NiCad batteries are designed to be recharged for a large number of cycles.
At the end of its life, chemical changes within the cells reduce the
capacity of the battery.
If the capacity of the battery falls, the battery should first be fully
discharged and recharged two or three times as described above, as the
cause may be reversible. However, if full capacity is not restored, the
battery must be changed.
Replacement batteries can be obtained from Scan Optics. To replace the
battery pack, unscrew the cap at the bottom of the Battery Handle. The
new battery pack should be inserted by pushing firmly into the handle
until an audible ‘click’ is heard.
Version 6.0 Page 10 of 12
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