Eickemeyer KOWA SL-19 User manual

USER MANUAL
KOWA SL-19
PORTABLE SLIT LAMP
Art. No. 173690
Art. No. 173690Art. No. 173690
TELEPHONE [phone]
www.eickemeyer.com

I
Congratulations on your purchase of the KOWA SL-19 (Basic Model).
This manual provides a description of the operating procedures and important precautions to be observed
during its use.
Please read this manual carefully to ensure that the instrument can perform to its full capabilities and work
safely. After you have nished reading, keep this manual in an easily accessible location for future reference.
Safety Precautions
This manual describes important precautions to be observed when you use the instrument to ensure that the
instrument is used safely without causing any damage to the human body or property of the purchaser and
other persons.
The following designations and pictorial symbols should be fully comprehended before reading the manual.
Meanings of Designations
Warning Improper operation may result in serious injury*1 or death.
Caution Improper operation may result in bodily injury*2 or property damage*3.
*1 Serious injury means vision loss, an injury, high- or low-temperature burn, electrical shock, fracture, or poisoning that
causes a subsequent complication or requires hospitalization or long-term outpatient treatment.
*2 Bodily injury means an injury, burn, electrical shock and so forth that will not necessitate hospitalization or long-term
outpatient treatment.
*3 Damage to property means extensive damage to a house and/or household goods as well as a domestic animal and pet.
Meanings of Symbols
Graphical indication of any warning and caution.
What is warned is explicitly and pictorially indicated by a picture or its associated
message on or near a pictorial symbol.
Graphical indication of prohibited operation (prohibitive item).
What is prohibited is explicitly and pictorially indicated by a picture or its associated
message on or near a pictorial symbol.
Graphical indication of any mandatory action (obligatory item).
What must always be done is explicitly and pictorially indicated by a picture or its
associated message on or near a pictorial symbol.
Disclaimer
KOWA is not responsible for:
• Any damage caused by re, earthquake, third party action, abuse or use under abnormal conditions, or
any accident caused by a user's intentional or unintentional error.
• Any incidental damage resulting from use of the product or its malfunction (e.g. loss of operating prot,
business disruption, change/loss of stored data and so forth).
• Any damage resulting from disregarding what is described in this manual.
• Any damage resulting from malfunctioning caused by a combination of connected devices.
 Introduction

II
WarningWarning
Prohibitory
Do not place a container or cup containing liquid near the instrument. Spilled liquid
entering into the instrument may cause electrical shock. If liquid should be spilled into the
instrument, contact KOWA or an authorized KOWA dealer for inspection.
Do not touch the battery box with a wet hand. Otherwise, it may cause electrical shock.
Do not short-circuit the terminals of the instrument or battery box. Otherwise, it may
cause re or electrical shock.
Do not disassemble, modify or repair the instrument by yourself. Otherwise, re, electrical
shock, bodily injury, or instrument malfunction may occur. Refer all servicing to KOWA or
authorized KOWA dealer. The instrument disassembled, modied or repaired by anyone
other than a KOWA designated repair facility will void the warranty.
Obligatory
If an unusual smell, unusual noise, overheating, or smoke is generated when the slit
button is turned on, turn o󰀨 the slit button immediately. Continuous use may result in re
or instrument damage. Contact KOWA or authorized Kowa dealer for inspection.
Use the designated battery box.
Use of a battery box other than the designated one may cause re or malfunction.
Remove the batteries when they are exhausted or when the unit will not be used for a
long period of time (more than three months). Leaving the battery in the unit for a long
time may cause battery uid leakage.
Remove used batteries and replace them with new ones at the same time.
The Ni-MH battery and its charger are not medical devices.
Please contact the battery/charger manufacturer for trouble with the nickel metal hydride
battery or its charger.
CautionCaution
Prohibitory
Do not wipe the exterior with benzene, thinner, or ethanol. It may lead to discoloration or
deterioration. If the terminals are soiled, wipe with a dry soft cloth containing.
Do not place your hands between the revolving arm and the coupled arm. It may lead to
injury if the hand is caught when the arms move.
Do not put your ngers between the prism boxes. The hand may be caught and lead to
injury when
adjusting interpupillary distance.
Do not place this device or charger on an unstable surface, such as a wobbly or tilted
surface.
The device may fall and could cause injury.
Do not use the product in humid, dusty, oily smoke, or steamy locations.
Using the device in such environments could lead to re or electric shock.
Attach the battery box properly. A dropped battery box may cause damage or injury.
Obligatory
When using or carrying the instrument, hold it rmly. Dropping the instrument may lead to
injury.
Do not use this device in a low-temperature environment below 10°C or in a high-
temperature environment above 35°C.
It may cause damage to the device.
When using the forehead rest, securely tighten the tting screws and fastening screws
to prevent them from loosening and install them correctly. Loose or detached parts may
cause injury.

III
 Components and Supplies
Main unit and standard items
Main unit (including battery box): 1
Dust cover: 1 Other
Instruction Manual: 1
Documentation CD: 1
Optional items
Forehead rest
(Model: SL-HR150): 1

IV
 Meanings of Symbols
Main unit

V
Meanings of Symbols
Symbol for “Follow instruction man-
ual for use” Symbol for “To Recycle”
Symbolfor“DATEOFMANUFACTURE” Indicates the size of the battery and
the polarity when it is used.
Symbol for “MANUFACTURER” Symbol for “Serial number”
Symbol for “Authorised Representa-
tive in the European Community” Symbol for “Type B applied part”
Symbol for “Importer”
For EU Market
Forehead rest
(optional item)
2022-02
11513800001
SL-HR150
This symbol is used only for member countries of the EU. The products with this
symbol must be handled in accordance with the WEEE Directive and domestic laws of
individual countries. With improper handling, harmful materials may adversely a󰀨ect the
environment and humans. By handling them properly, they can be reused, recycled,
or reborn in another form, leading to environment conservation and effective use of
resources.

VI
1. Operating environment
1) Avoid high temperature and humidity, direct sunlight, and dust when transporting, installing and storing the instrument.
Strictly observe the following environmental conditions.
Operational Transport and storage
Environmental temperature 10 to 35℃-10 to +55℃
Relative humidity 30 to 90% 10 to 95%
Atmospheric pressure 800 to 1,060 hPa 700 to 1,060 hPa
2) Avoid condensation when using, transporting or storing the instrument.
2. Precautions for maintenance and repair
1) Disinfect all parts accessible by the patient with alcohol.
2) Handle the instrument carefully and do not subject it to strong impact. Do not operate the instrument after it has been
dropped or has been subjected to any other kind of strong impact.
3) When the instrument has not been used for a long period of time, inspect the items below.
・Severe damage or deterioration of the exterior
・Deterioration or leaking of batteries
4) Never disassemble or adjust this instrument by yourself as it involves precision parts which require special tools.
5) KOWA is not liable for malfunction and/or damages resulting from maintenance and/or repairs performed by a third
party other than an agent authorized by KOWA.
6) KOWA is not liable for malfunction and/or damages resulting from maintenance and/or repairs using parts other than
repair parts specied by KOWA.
7) Always cover this instrument with the dust cover when not in use.
8) Prevent running out of batteries by having new batteries prepared.
3. Disposal precautions
Disposal of this device, battery is subject to local laws concerning waste treatment and cleaning. When disposing, be
sure to contact a licensed industrial waste disposal contractor in accordance with local government ordinances and
regulations if applicable.
4. Notes on Batteries and Rechargeable Batteries
1) This device uses three AA batteries. Please follow the guidelines below.
・For dry cell batteries (primary batteries), use Alkaline batteries.
・When using a rechargeable battery, use a rechargeable nickel metal hydride battery.
・Do not use new and old batteries together, or batteries of di󰀨erent brands or types together.
・Make sure that batteries are inserted in the battery box in correct polarity positions. Batteries inserted in the wrong
direction may lead to failure.
・ For dry batteries and rechargeable batteries that we recommend, please contact Kowa or your local Kowa dealer.
・When using rechargeable batteries, always use the charger recommended by the battery manufacturer.
・Read respective instruction manuals for precautions on batteries and chargers.
2) Always take the following precautions to avoid serious injury or re caused by overheating, ignition, explosion, or uid
leakage.
・ If overheating occurs, immediately move away from the instrument. Leaked uid or the instrument may catch re
and explode.
・ If battery uid gets into the eyes, ush with clean water and see a doctor immediately.
・ If your body or clothes are contaminated with battery uid, wash thoroughly .
 Operating Precautions
WarningWarning
Obligatory
Remove batteries when the batteries have run out, or when the instrument will not be used for
extended periods (three months or longer).
Leaving the batteries inside the instrument for extended periods may cause leakage of battery
uid.
When batteries have run out, remove all the batteries inside and replace with new ones.
The Ni-MH battery and its charger are not medical devices.
Please contact the battery/charger manufacturer for problems with the nickel metal hydride
battery and its charger.

VII
Operational Considerations for a Hospital Grade Electrical
Instrument (safety and accident prevention)
1. Onlyqualiedpersonnelshouldoperatethisinstrument.
2. The following items shall be considered when installing the instrument.
1) Install at a location away from water or accidental splashing.
2) Install at a location which will not be adversely a󰀨ected by atmospheric pressure, temperature, humidity,
ventilation, sunlight, dust, and air containing salt, sulfur and other substances, and the like.
3) Take care to guard against tilt, vibration, and strong impacts, for instance, during transportation.
4) The instrument must not be installed at locations where chemicals are stored or gasses are generated.
5) Check the status of the batteries (electrical discharge, polarity, etc.).
3. The following items shall be considered before using the instrument.
1) Make sure that the instrument activates properly after checking switch contact, polarity, dial setting and so forth.
2) Use of other instruments and appliances on the same power outlet is liable to cause errors and incorrect
output resulting in incorrect diagnosis or hazards.
3) Before operation, make sure that the battery is su󰀩ciently charged.
4. The following items shall be considered when using the instrument.
1) Make sure to minimize the time required for diagnosis.
2) Always ensure that the instrument and patient are in good condition.
3) When an abnormality is found on the instrument, take proper measures. For instance, stop the operation
of the instrument while assuring the patient’s safety.
4) Do not allow the patient to touch any part of the instrument except for the forehead rest.
5. The following items shall be considered after using the instrument.
1) The following shall be considered regarding storage location.
(ⅰ) Store at a location away from water or accidental splashing.
(ⅱ) Store at a location which will not be adversely a󰀨ected by atmospheric pressure, temperature, humidity,
ventilation, sunlight, dust, air containing salt, sulfur and other substances, and the like.
(ⅲ) Take care to guard against tilt, vibration, and strong impacts, for instance, during transportation.
(ⅳ) The instrument must not be stored at locations where chemicals are stored or gasses are generated.
2) Clean and rearrange items, and the like.
3) The instrument must be cleaned after use so that there will be no problems when using it again.
6. In case of a problem or malfunction, do not attempt to repair the instrument by yourself. Appropriately
labeltheinstrumentas“outoforder”andcontactaqualiedtechnicianforrepair.
7. Theinstrumentshallnotbemodied.
8. Maintenance
1) Periodically check the instrument and its components for any abnormality.
2) When using the instrument after it has not been used for a while, check beforehand to ensure that it is in
normal condition and operates safely.
9. Be careful of the possibility that incorrect operation may be caused by strong electromagnetic waves.
This instrument is examined based on IEC60601-1-2.
The purpose of this standard is to keep safety against the dangerous obstacle in typical medical facilities.
In case this instrument is inuenced by other instrument, or it a󰀨ects other instrument or there is such fear,
relocate this instrument and other apparatus or extend the distance between those instruments.
If you have any questions, please consult KOWA or an authorized KOWA dealer.

VIII
memo

IX
This instrument is a medical electrical instrument. Medical electrical instruments require special attention to
electromagnetic compatibility (EMC).
The following section describes the conformity to EMC and precautions for this instrument. When installing or
using this instrument, read the description carefully and follow the directions described.
(The EMC of this instrument was tested based on IEC 60601-1-2.)
○ The environment for which this instrument is suitable: Home healthcare facility environment.
○ The performance in the following table is veried to determine electromagnetic compatibility (EMC) of this
instrument.
Performance Switching ON/OFF the lamp
 Electromagnetic Compatibility
WarningWarning
What can be anticipated if the performance is lost or degraded due to electromagnetic disturbances:
The lamp is not turned on. Use of this instrument adjacent to or stacked with other instrument may
lead to the improper functioning. If such use is necessary, this instrument and the other instrument
should be observed to verify that they are operating normally.
WarningWarning
This device has been tested for electromagnetic compatibility (EMC) in conjunction with
the following items and peripheral devices. Use of non-designated items may increase the
electromagnetic emission of this device or reduce the electromagnetic immunity, resulting in
improper operation. Do not attach and use substances that are not designated.
・Forehead rest (SL-HR150)
・KOWA SL-19 charger (SL-CB191)*
・KOWA SL-19 power pack (SL-PP191)*
・AC adaptor (adapted from IEC62368) (GCF312S-0520 manufactured by GUCF)
・USB cable (not more than 1.5m) (Elecom U2C-AC15NBK)
WarningWarning
Portable RF communications instrument (including peripherals such as antenna cables and external
antennas) should be used no closer than 30 cm (12 inches) to any part of this instrument, including
cables specied. Otherwise, degradation of the performance of this instrument could result.
*Depending on the country / region, these may not be available.

X
Electromagnetic Compatibility
<Main body and Forehead rest>
Compliance for each emissions
Emissions Test Compliance
RF emissions
CISPR 11 Group 1 Class B
Conductive emission
CISPR 11 Not applicable
Harmonic distortion
IEC 61000-3-2 Not applicable
Voltage uctuations and icker
IEC 61000-3-3 Not applicable
Compliance for each immunity
Immunity Test Immunity Test Levels
Electrostatic Discharge
IEC 61000-4-2
±8 kV contact
±2 kV, ±4 kV, ±8 kV, ±15 kV air
Radiated RF EM elds
IEC 61000-4-3
10 V/m
80 MHz – 2.7 GHz
80 % AM at 1 kHz
Rated power frequency magnetic elds
IEC 61000-4-8
30 A/m
50 Hz or 60 Hz
Electrical fast transients/bursts
IEC 61000-4-4 Not applicable
Surges
IEC 61000-4-5 Not applicable
Conducted disturbances induced by RF elds
IEC 61000-4-6 Not applicable
Voltage dips
IEC 61000-4-11 Not applicable
Voltage interruptions
IEC 61000-4-11 Not applicable
Electrical transient conduction along supply lines
ISO 7637-2 Not applicable
Proximity elds from RF wireless communications
equipment
IEC 61000-4-3
See “Test specications for enclosure port immunity
to RF wireless communications equipment”.

XI
Electromagnetic Compatibility
Test specications for enclosure port immunity to RF wireless communications equipment
Test
Frequency
(MHz)
Band
(MHz) Service Modulation
Maximum
Power
(W)
Distance
(m)
Immunity
Test Level
(V/m)
385 380 – 390 TETRA 400
Pulse
modulation
18Hz
1.8 0.3 27
450 430 – 470 GMRS 460,
FRS 460
FM
±5 kHz
deviation
1 kHz sine
2 0.3 28
710
704 – 787 LTE Band 13, 17
Pulse
modulation
217 Hz
0.2 0.3 9745
780
810
800 – 960
GSM 800/900,
TETRA 800,
iDEN 820,
CDMA 850,
LTE Band 5
Pulse
modulation
18 Hz
2 0.3 28
870
930
1720
1700 – 1990
GSM 1800;
CDMA 1900;
GSM 1900;
DECT;
LTE Band 1, 3, 4, 25;
UMTS
Pulse
modulation
217 Hz
2 0.3 28
1845
1790
2450 2400 – 2570
Bluetooth,
WLAN,
802.11 b/g/n,
RFID 2450,
LTE Band 7
Pulse
modulation
217 Hz
2 0.3 28
5240
5100 – 5800 WLAN 802.11
a/n
Pulse
modulation
217 Hz
0.2 0.3 9
5500
5785

XII
 Contents
Introduction ................................................................................................. I
Components and Supplies.............................................................III
Meanings of Symbols ...............................................................................IV
Operating Precautions ..............................................................................VI
Operational Considerations for a Hospital Grade Electrical Instrument
(safety and accident prevention)..............................................................VII
Electromagnetic Compatibility ..................................................................IX
Contents ..................................................................................................XII
1 Instrument Description............................................................................... 1
1.1 Intended Use .............................................................................................................1
1.2 Overview....................................................................................................................1
1.3 Operator.....................................................................................................................1
1.4 Features.....................................................................................................................1
1.5 Name and Function of Each Part ..............................................................................2
2 Preparation ................................................................................................ 4
2.1 Installing batteries in the main unit ............................................................................4
2.2 Adjusting Interpupillary Distance and Diopter............................................................5
3 How to Use ................................................................................................ 6
3.1 Basic instruction.........................................................................................................6
3.2 How to Operate Other Functions...............................................................................6
3.3 Optional items............................................................................................................8
4 Maintenance and Inspection ........................................................... 9
4.1 Regular Maintenance ................................................................................................9
4.2 Daily Inspection .........................................................................................................9
4.3 Replacing Batteries .......................................................................................................... 10
4.4 Cleaning .................................................................................................................. 11
5 Troubleshooting ....................................................................................... 12
6 Specications........................................................................................... 13

1
1.1 Intended Use
The KOWA SL-19 is intended for use in animal's eye examinations of the anterior eye segment, from the
cornea epithelium to the posterior capsule. It is used to aid in the diagnosis of diseases or trauma which
a󰀨ect the structural properties of the anterior eye segment.
1.2 Overview
The KOWA SL-19 (basic model) is a hand-held slit lamp powered by three AA batteries.
1.3 Operator
Persons with specialized knowledge of ophthalmic care and who received introductory education of slit lamp
observation are required to operate this instrument.
1.4 Features
● Slit lamp button that allows the operator to turn on the slit lamp easily with simple action
● White LED used as the light source
● Light intensity dial that can freely change the brightness of the slit illumination
● Equipped with background illumination separately used from the slit light
● Equipped with blue color light for uorescent staining observation
●
One-action lever to change observation magnication between 10x and 16x
● Easy-to-grip shape
● Lighter than conventional models
● Power-saving LED for longer operating time
● Indicator blinks orange when the battery level is low
● Can also be used as an indirect ophthalmoscope light source
1 Instrument Description

2
1 Instrument Description
1.5 Name and Function of Each Part
②
①
⑧
④
③
⑮
⑬
⑭
⑯
⑪
⑥
⑨
⑩
⑰
⑤
⑫
⑱
⑲
⑳
㉑
㉒
⑦

3
1 Instrument Description
Name Function and performance
①Slit dial Select slit width and spot. Three slit widths are available: 0.1 mm, 0.2 mm, and 0.8 mm.
②Spot dial
Select the light diameter of the spot and determine the length of the slit light. Three spot
diameters (φ1mm, φ5mm and φ12mm) can be selected and slit lengths can be changed
from 1.5mm to 12mm continuously.
③Magnifying power
select lever 2 di󰀨erent magnications (10x and 16x) are selectable by shifting the lever left and right.
④Eyepiece Ocular lenses are included in the eyepiece. The user observes patient eye through the
ocular lens.
⑤Eye cup Attached to the eyepiece and can be used as guide to adjust the distance of the eye from
the ocular lens.
⑥Dioptric correction
scale Continuously adjust the dioptric power of the eyepiece.
⑦Prism box Rotate left and right to adjust interpupillary distance.
⑧Illumination angle
scale Indicates the swing angle of the illumination light.
⑨Slit lamp button Press to turn ON the light, and release to turn OFF.
⑩Projection prism Part of prism where the illumination light passes through.
⑪Objective lens At 10x magnification, the objective lens stays inside the microscope unit and at 16x
magnication, the objective lens pops out forward.
⑫Upper cover Remove the upper cover when installing the forehead rest.
⑬Back light button When pressed, the background illumination light turns on. The light intensity can be
switched between three levels.
⑭Main unit indicator Illuminated in green when the unit is turned on. Flashes orange when the battery level is
low.
⑮Blue light button Press to turn on the blue light for fluorescence observation. The light intensity can be
switched between three levels.
⑯Light intensity dial The brightness of the illumination light can be continuously adjusted. Turn to the right to
make it brighter, turn to the left to make it darker.
⑰Battery box Can contain batteries to be attached to insert the battery into the main unit.
⑱Revolving arm ―
⑲Coupled arm Supporting connection between the grip unit and the illumination unit.
⑳Grip ―
㉑Illumination unit ―
㉒Microscope unit ―

4
2 Preparation
2.1 Installing batteries in the main unit
When using alkaline dry batteries or Ni-MH rechargeable batteries
(1) While pressing the tab, pull the battery box to remove it from the
main unit.
(2) Firmly insert batteries in correct polarity positions as written on the
battery box.
Recommended Batteries
Shape AA
Type Alkaline dry batteries or Ni-MH rechargeable batteries
(3) Return the battery box to the main unit.
Insert the battery box until the tab makes a click sound.
(4) Press the slit lamp button and conrm that the main unit indicator lights in green.
CautionCaution
Prohibitory
Do not mix di󰀨erent types of batteries.
Do not mix batteries with di󰀨erent residual volumes.
CautionCaution
Obligatory
If this device is used with the battery box not inserted securely, the battery box may
fall, resulting in damage or injury.

5
2 Preparation
2.2 Adjusting Interpupillary Distance and Diopter
(1) Adjusting interpupillary distance
Adjust the interpupillary distance by rotating the prism box left or right to obtain an appropriate eld of
view through the eyepieces.
(2) Adjustment of the diopter
Make adjustment for each eye according to the following procedure.
・
Turn the dioptric correction scale all the way to the “+” side.
・
Looking in the nder, slowly turn the dioptric correction scale
toward the “–“ side until the reticle is clearly visible.
When you are wearing eyeglasses, you may fold back the eye cups.
CautionCaution
Prohibitory
Do not adjust the interpupillary distance with
ngers placed between the prism boxes.
Left Right
Reticle Visibility

6
3 How to Use
3.1 Basic instruction
(1) Using the grip, hold the main unit securely in your hand.
(2) Place the thumb of the other hand on the side of the microscope unit
and place the other ngers on the patient's forehead.
(3) Stabilize slit width indication by adjusting the distance between the
examined eye and the objective lens, depending on how wide the
opening is between the thumb and the other ngers when put on
the patient's forehead.
Use of the forehead rest (optional item) to x the position of the patient and the device, and makes it
possible to observe the patient eye.
(4) Press the slit lamp button and irradiate the light for various observations of the eye.
3.2 How to Operate Other Functions
● Changing observation magnication
Turn the magnifying power select lever to the left as indicated by the
arrow to select a magnifying power of 16x.
Turn it to the right to select a magnifying power of 10x.
● Changing slit-width
Types of slit width: 0.1 mm, 0.2 mm, 0.8 mm and spot (circular).
Turn the slit dial and set at the click stops.
● Select the slit length and spot diameter
The slit length/spot diameter can be switched between φ 1 mm, φ 5
mm and φ 12 mm.
The slit length can also be varied continuously from 1.5mm to 12 mm.
Turn the spot dial and set it at the click stops or adjust it to the
appropriate slit length.
List of slit dial and spot dial settings
No. 123456
Illumination
irradiated
Slit dial 0.1, 0.2, 0.8 0.1, 0.2, 0.8 0.1, 0.2, 0.8 〇 〇 〇
Spot dial 12 φ1, φ5 1.5↔12 12 φ1, φ5 1.5↔12
○ Light other than slits and spots may be irradiated as shown in No.6. This is not a malfunction.
×10
×16
0.8
0.8
IMPORTANT
1.5↔12
1.5↔12
1.5↔12
1.5↔12
1.5↔12
1.5↔12