Zeiss SL 120 Operator's manual

SL 120
Slit lamp
Documentation set

© 2018, Carl Zeiss Meditec AG, Jena
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Contents
User manual
SL 120 Slit lamp
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SL 120
Slit lamp
User manual

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Contents
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Contents
Contents.....................................................................................1
Notes on the user manual ..........................................................3
Purpose and availability of documentation ....................................................3
Questions and comments................................................................................3
Explanation of symbols used ..........................................................................4
Package check list......................................................................5
Country-specific information and labels.....................................6
Classification/Manufacturer's declaration ...................................................... 6
Intended Use ...................................................................................................7
Intended user profile.......................................................................................8
Disposal of the product ..................................................................................9
External labels...............................................................................................10
Performance specifications ......................................................14
Functional description...................................................................................14
Service life.....................................................................................................15
Description of the instrument ..................................................16
Installation ...............................................................................20
Notes on installation and use .......................................................................20
Unpacking .....................................................................................................21
Assembly of the SL 120 Slit Lamp ................................................................22
Electrical connection .....................................................................................24
Power supply unit .....................................................................................................24
Daily use...................................................................................25
Switching on .................................................................................................25
Operation of the instrument ....................................................26
Preparations..................................................................................................28
Slit lamp....................................................................................................................28
Setting the slit brightness .........................................................................................29
Positioning the patient..............................................................................................29
General notes on instrument operation....................................................................29
Adjusting the illumination.........................................................................................31
Tonometry ................................................................................................................31
Gonioscopy...............................................................................................................32

Contents
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Shutting down ......................................................................... 33
Switching off the instrument ....................................................................... 33
Maintenance and care ............................................................. 34
Replacing the lamp....................................................................................... 35
Maintenance................................................................................................. 36
Care and cleaning .....................................................................................................36
Safety inspections ........................................................................................ 37
Optional accessories ................................................................ 38
Mounting the beam splitter ......................................................................... 39
Mounting a filter changer with barrier filter (yellow) .................................. 40
Mounting the ACCENTO Ergotube ............................................................... 41
DigiCam Adapter .......................................................................................... 42
DigiCam Illuminator ..................................................................................... 43
Focusing rod................................................................................................. 44
Fixation lamp................................................................................................ 45
AT 020/AT 030 applanation tonometer ....................................................... 45
Special eyepieces.......................................................................................... 46
10x micrometer eyepiece with linear and angular scales..........................................46
Angular measurement ..............................................................................................47
Length measurement................................................................................................47
Breathing shield ........................................................................................... 48
Paper pads ................................................................................................... 48
Fender plate ................................................................................................. 48
Technical data.......................................................................... 49
Electromagnetic compatibility ................................................. 51
Ambient conditions for intended use........................................................... 51
Restrictions on essential performance ......................................................... 51
Abbreviations/Glossary ............................................................ 55
Figures ..................................................................................... 56
Index........................................................................................ 57

Notes on the user manual
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Notes on the user manual
Purpose and availability of documentation
This user manual explains the safety precautions, functions, usage,
performance parameters and measures for care and maintenance of the
SL 120 Slit Lamp.
Correct operation of the system is imperative for its safe and successful
functioning. You should therefore ensure that you are thoroughly familiar
with this user manual before setting up and using the SL 120 Slit Lamp for
the first time.
The user manuals and other documentation enclosed with the SL 120 Slit
Lamp should be kept accessible to users at all times to ensure that the
information required for the use of the SL 120 Slit Lamp is readily available.
Questions and comments
If you have any questions or comments concerning this user manual or the
SL 120 Slit Lamp, please contact ZEISS Service or your local dealer (Contact
details see reverse).

Notes on the user manual
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Explanation of symbols used
The symbols used in this user manual refer to important safety information
which may warn against possible health risks or fatal injuries and contain
useful notes. Whenever you see these symbols, read the accompanying
information carefully and observe all safety notes and information in this
user manual and on instrument labels.
WARNING
Indicates a hazardous situation which could result in death or serious injury
if the appropriate safety precautions are not heeded.
CAUTION
Indicates a hazardous situation which could result in minor or moderate
injury if the appropriate safety precautions are not heeded.
CAUTION - PROPERTY DAMAGE
Indicates possible device damage if the appropriate safety precautions are
not heeded.

Information, hints and advice for better understanding of the
instructions to be observed in the operation of the device.

Package check list
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Package check list
The following components are included in the delivery scope:
•SL 120 Slit Lamp
•Halogen bulb
•Eyepieces
•Dust cover
•Power supply unit
•Power cable
•Documentation set

Country-specific information and labels
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Country-specific information and
labels
Classification/Manufacturer's declaration
WARNING - GENERAL HAZARDS
This device may only be set up, operated and used for the specified purpose
and according to national regulations, applicable industry standards and
occupational safety and accident prevention regulations. Further notes on
classification are to be found in section Technical data, page 49 and
following.
This device complies with EU Medical Device Directive 93/42/EEC.
Device class according to MPG: I
Device group: 2 pursuant to ISO 15004-2:2007
EMC: See chapter Electromagnetic
compatibility, page 51 and following.
N° UMDNS: 12-281
The product is RoHS-compliant according to directive 2011/65/EU.
This declaration shall be rendered invalid if changes are made to the product
without the manufacturer’s authorization.

Country-specific information and labels
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Intended Use
The SL 120 Slit Lamp is a powerful universal instrument for observation,
diagnosis, measurement and documentation of the anterior eye segment.
Responsibility for using the device other than as intended lies with the user.
CAUTION - RISKS ARISING FROM OPERATING ERRORS
Do not use the SL 120 Slit Lamp in patients with the following conditions:
•Unable to follow the instructions of the user
•Unable to sit upright in front of the instrument
•Forehead or chin injuries that prevent the head from being supported on
the head/chin rest

Country-specific information and labels
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Intended user profile
CAUTION - RISKS ARISING FROM OPERATING ERRORS
This device may only be installed, operated, used and maintained by
persons who have been properly trained or who have the required
knowledge and experience to do so. Please also adhere to the national
qualification guidelines applicable in your country.
Persons who operate the SL 120 Slit Lamp must have completed the
following training:
•Ophthalmologist
•Optician
•Optometrist

Country-specific information and labels
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Disposal of the product
CAUTION - RISK OF ENVIRONMENTAL POLLUTION
Packaging materials should be retained for future relocation or repair.
If you decide to dispose of the packaging material, submit it to a recognized
collection system for recycling.
The device contains electronic components. At the end of its lifetime, the
product should be disposed of in accordance with the relevant national
regulations.
Disposal of the product within the EU
In accordance with applicable EU guidelines and national regulations at the
time at which the product was brought onto the market, the product
specified on the consignment note is not to be disposed of via the domestic
waste disposal system or communal waste disposal facilities.
For further information on disposing of this product please contact your
local dealer or the manufacturer or its legal successor company. Please read
the latest information provided on the manufacturer's website.
If the product or its components are resold, the seller must inform the buyer
that the product must be disposed of in accordance with the currently
applicable national regulations.

Country-specific information and labels
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External labels
Fig. 1 Labeling of the SL 120 Slit Lamp

Country-specific information and labels
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Fig. 2 Labeling of the power supply unit

Country-specific information and labels
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Item Label Explanation
1
SL 120 Slit Lamp type label
Manufacturer
Date of manufacture
Application part type B
conforming to IEC 60601-1
DC voltage
IP20 Ingress protection rating for
housing (protected against
solid foreign bodies of
12.5 mm in diameter and
larger, no protection against
penetration of water)
2
SL 120 identification label for
instrument tables
(000000-2014-901)
and SL 120 for ophthalmic units
(000000-2014-902)
SN Serial number
3 Sign with date of manufacture
4
CE approval label and disposal advise
for EU
(for device with 2006-387 NAG SL 6V)
EU conformity symbol
Disposal advise for EU
5 Not applicable Not applicable
6
Identification sign for the focusing rod
as accessory of SL 120 Slit Lamp
7
Power supply unit type label
EU conformity symbol
NRTL approval for USA and
Canada
Application part type B
conforming to IEC 60601-1
IP20 Ingress protection rating for
housing (protected against
solid foreign bodies of
12.5 mm in diameter and
larger, no protection against
penetration of water)

Country-specific information and labels
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Item Label Explanation
8
Information label
"Disconnect device from the power
supply before opening"
9
Information label
"Observe user manual"

Performance specifications
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Performance specifications
Functional description
The SL 120 Slit Lamp allows observation, diagnosis, measurement and
documentation of the anterior eye segment, including the lens and vitreous
body. Additional optical elements such as contact or correction lenses also
render the deeper regions of the eye and the chamber angle visible. The
SL 120 Slit Lamp is designed for the complete application area of a typical
slit lamp. It is used by ophthalmologists, optometrists and opticians.
The slit lamp consists of an instrument base (with joystick) onto which an
illumination system (slit projector) and an observation unit (stereomicroscope
with binocular tube and eyepieces) are mounted. The illumination system
and the observation unit can be swiveled independently of each other
around the same vertical axis. The head of the patient lies on the head rest.
Using a fixation lamp, the user can direct the patient's eye as desired. The
illumination system generates a slit image which can be modified in length,
width, position and brightness and which has a specified distance from the
slit lamp. The user can adjust each of the modifiable parameters of the slit
image using the controls. The observation unit allows the user to observe
the eye segment to be examined in five selectable magnification steps. The
magnification changer is a Galilean system with telecentric beam path. The
user can position the slit lamp in relation to the examined object in all three
axes using the joystick of the instrument base so that the desired
observation area of the eye is in focus. Using different illumination methods,
variable slit images and filters, it is possible to view almost all eye segments.
The SL 120 Slit Lamp can be enhanced by optional accessories. With the
AT 020 and AT 030 Goldmann applanation tonometer the user can precisely
measure the intraocular pressure. The micrometer eyepiece enables the user
to measure angles and lengths in a simple process. Various documentation
accessories help the user capture images of the diagnosis.