ViewLight KOWA SL-19 User manual

INSTRUCTION MANUAL
Hand-Held Slit Lamp
KOWA
EU
KOWA SL-19

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
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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.
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causes a subsequent complication or requires hospitalization or long-term outpatient treatment.
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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:
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any accident caused by a user's intentional or unintentional error.
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• 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
Warning
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
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other than a KOWA designated repair facility will void the warranty.
Obligatory
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or instrument damage. Contact KOWA or authorized Kowa dealer for inspection.
Use the designated battery box.
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long period of time (more than three months). Leaving the battery in the unit for a long
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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.
Caution
Prohibitory
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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.
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injury when
adjusting interpupillary distance.
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surface.
The device may fall and could cause injury.
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Attach the battery box properly. A dropped battery box may cause damage or injury.
Obligatory
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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.
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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
Optional items
Forehead rest
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IV
 Meanings of Symbols
Main unit

V
MeaningsofSymbols
Symbol for “Follow instruction man-
ual for use” Symbol for “To Recycle”
Symbolfor“DATEOFMANUFACTURE” Symbol for “Medical Decive”
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” Indicates the size of the battery and
the polarity when it is used.
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
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resources.

VI
1. Operating environment
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Strictly observe the following environmental conditions.
Operational Transport and storage
Environmental temperature 10 to 35℃-10 to +55℃
5HODWLYHKXPLGLW\ 30 to 90% 10 to 95%
Atmospheric pressure WRK3D WRK3D
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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.
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・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.
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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
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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.
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・Make sure that batteries are inserted in the battery box in correct polarity positions. Batteries inserted in the wrong
direction may lead to failure.
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・:KHQXVLQJUHFKDUJHDEOHEDWWHULHVDOZD\VXVHWKHFKDUJHUUHFRPPHQGHGE\WKHEDWWHU\PDQXIDFWXUHU
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leakage.
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and explode.
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.
 Operating Precautions
Warning
Obligatory
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extended periods (three months or longer).
Leaving the batteries inside the instrument for extended periods may cause leakage of battery
ÀXLG
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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)
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2. The following items shall be considered when installing the instrument.
1) Install at a location away from water or accidental splashing.
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4) The instrument must not be installed at locations where chemicals are stored or gasses are generated.
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3. The following items shall be considered before using the instrument.
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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.
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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.
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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.
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(ⅳ) The instrument must not be stored at locations where chemicals are stored or gasses are generated.
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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
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8. Maintenance
1) Periodically check the instrument and its components for any abnormality.
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normal condition and operates safely.
9. Be careful of the possibility that incorrect operation may be caused by strong electromagnetic waves.
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The purpose of this standard is to keep safety against the dangerous obstacle in typical medical facilities.
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relocate this instrument and other apparatus or extend the distance between those instruments.
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Serious incident reporting
Any serious incident that has occurred in relation to the device should be reported to the manufacturer and the
competent authority of the Member State in which the user and/or patient is established.

VIII
Light intensity dial display 12345
Light intensity ratio 0.01 0.03 0.18 0.55 1.00
Background illumination stage 123
Light intensity ratio 0.14 0.50 1.00
Blue illumination stage 123
Light intensity ratio 0.21 0.50 1.00
Light Hazard
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for a thorough understanding.
CAUTION −The light emitted from this instrument is potentially hazardous. The longer the duration of
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maximum output will exceed the safety guideline after 475 seconds for all light sources.
NOTE 1 The exposure from all light sources is cumulative and additive.
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time for that light sources to reach the exposure guideline is doubled. This linear relationship can be used to
determine the time to reach the exposure guideline for the combination of light sources at various intensity
settings.
NOTE3 The weighted retinal radiant exposure guideline is 10 J/cm2.
Blue illumination light(source3)
Slit light(source1) Background illumination light(source2)