RETINAL CAMERA
Kowa
INSTRUCTION MANUAL
US
KOWA VX-20
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Introduction
Accept our congratulations on your purchase of KOWA VX-20.
KOWA VX-20 is a retinal camera which is capable of mydriatic and non-mydriatic photography.
This manual provides a description of the operation procedures of KOWA VX-20 and important precautions
to be observed during its use.
Please read this manual carefully to assure that the instrument can demonstrate its full capabilities and work safely.
After you have finished reading, keep this manual in an easily accessible location near the instrument for fu-
ture reference.
Operational considerations for safety
This manual describes important precautions to be observed when you use this system to assure that the
system is used safely without causing any damage to the human body or property of the purchaser and
other persons.
The designations and pictorial symbols used in this manual have the following meanings.
These should be fully comprehended before reading the text of this manual.
Meanings of designations
If the instrument should be operated wrongly, there may incur a risk
of causing death or serious injury.
Warning
If the instrument should be operated wrongly, there may result in a
bodily injury*1 or damage to property*2.
Caution
*1 A bodily injury means an injury, burn, electrical shock and so forth that will not necessitate
hospitalization or long-term outpatient treatment.
*2 Damage to property means an extensive damage to a house and/or household goods as well as a
domestic animal and pet.
Meanings of symbols
Graphical indication of any danger (including 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 fire, earthquake, third party’s action, any other accident or user’s intentional or
unintentional error, abuse or use under abnormal conditions.
•
Any damage resulting from use of the product or its malfunction (e.g. operating loss, shutdown, change/
loss of stored data and so forth).
•
•
Any damage resulting from disobedience of what is described in this manual.
Any damage resulting from, for instance, malfunctioning of instrument caused by a combination of con-
nected devices.
I
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Warning
If any abnormal smell, sound, overheating or smoke should be detected, be sure to turn
OFF the main power immediately and then unplug the instrument from the power outlet.
Continued use of the instrument may cause the instrument to malfunction or cause a
fire. Contact Kowa or your Kowa dealer for inspection immediately.
When replacing the flash lamp and observation lamp, make sure the
instrument is turned OFF and then unplugged from the power outlet.
Wait for more than 5 minutes, or more than 30 minutes if immediately
after use, before replacing. Otherwise, there may occur electrical
Unplug
shock.
Warning
High-Voltage
When replacing the fuse, make sure the instrument is turned OFF and
unplugged from the power outlet.
If the fuse holder cover is removed with the instrument unplugged,
there may occur electrical shock.
Be sure to plug into the power outlet completely and securely.
Otherwise, there may cause a fire or electrical shock.
Use a designated fuse only.
Otherwise, the instrument may malfunction or a fire may break out.
Obligatory
Make sure that the instrument is properly grounded to protect from bodily injury.
Connect the plug into the three-wire grounding type outlet with ground wire.
Otherwise, there may occur electrical shock.
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, turn OFF the main power and then unplugged from the
power outlet. Contact Kowa or your Kowa dealer for inspection.
Do not load the power outlet or cable with excess of its rated capacity.
If the main power cable should share a power outlet with other devices and the rated
capacity is exceeded, there may cause a fire or electrical shock.
Prohibitory
Do not insert any metal object into an air vent or opening of the instrument. It may
cause an instrument malfunctioning, fire or electrical shock.
Do not disassemble, modify or repair the instrument yourself.
It may cause a fire, electrical shock, instrument malfunctioning or bodily injury.
Refer all servicing to Kowa or your Kowa dealer.
The product assembled by yourself will not be covered under warranty nor any other
service.
Disassembly prohibited
II
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Caution
The power supply must be provided for the sole use of this instrument.
Sharing a same power supply with other devices may cause malfunctioning.
When operating the instrument, take good care so that the patient’s eye, nose or
face does not come in contact with the instrument.
When moving up or down the chin rest to adjust the height of the patient’s eyes,
carefully manipulate the instrument while checking the position of the patients’ head.
A patient with the smaller head may get his or her head caught between the compo-
nents.
Obligatory
Handle the flash lamps and halogen lamps and fuses made of glass with good care.
Do not pull the power supply cable when unplugging.
Doing so may damage the cable and cause a fire or electrical shock. Be sure to hold
the plug when unplugging.
Do not plug or unplug the power supply cable with wet hand.
Otherwise, there may occur electrical shock.
Do not install the instrument at unstable location such as on a shaky base or a tilting
surface.
Doing so may cause the instrument to drop or fall over and result in a bodily injury.
Do not replace the flash lamp and halogen lamp immediately after
turning the OFF the main power.
You could be burned by the lamp heated to a high temperature.
Wait for more than 30 minutes to cool the lamp down before replac-
ing.
Caution
High-temperature
Do not touch the flash lamp bulb and halogen lamp bulb with your bare hand.
Otherwise, the lamp may reduce the light intensity and longevity.
Do not increase the observation illumination light intensity more than required.
Otherwise, the eye may be injured.
Do not increase the photography light intensity more than required.
Otherwise, the patient may experience pain and his or her eye may be injured.
Prohibitory
The air vent must not be obstructed.
Obstructing the air vent may increase the internal temperature resulting in malfunc-
tioning of the instrument or a fire.
Do not insert any metal object into an air vent or opening of the instrument.
It may cause electrical shock and malfunctioning of the instrument.
When operating this instrument, keep your fingers off the gap between the optical
head base and panning arm or the tilting arm and tilting component, or the gap of
the panning arm.
Otherwise, the fingers may be pinched and injured.
Instruct the patient not to place his or her fingers on the instrument.
Do not wipe the outer surface of the instrument with solvents such as benzene, or-
ganic solvent, ether.
Doing so may cause discoloration or degradation.
Instruct the patient not to place his or her fingers on the instrument except for the
grips (optional accessory).
Otherwise, the fingers may be pinched and injured.
Do not use a sharp object to perform touch operation on the LCD monitor . It may
cause malfunctioning of the instrument.
Do not apply excess force when performing touch operation on the LCD monitor.
The optical component may move unexpectedly, resulting in an injury.
III
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Caution for fingers location
Keep your fingers off the location shown with the arrows in the illus-
tration when operating this instrument. Otherwise, the fingers may be
pinched and injured.
Instruct the patient not to place his or her fingers on the instrument.
Caution
Caution for contact
Take good care so that the patient’s eye, nose
or face does not come in contact with the loca-
tions shown with an arrow in the illustration
Caution
when operating the instrument.
Caution for air vent
The air vent shown with the arrows in
the illustration must not be obstructed.
Obstructing the air vent may increase
the instrument temperature and result-
ing in malfunction of the instrument or
a fire.
Do not insert any metal object into an
air vent or opening of the instrument,
also. It may cause electrical shock and
malfunctioning of the instrument.
Caution
IV
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Meanings of symbols
Symbol for “Power ON”.
Symbol for “Caution”.
Symbol for “Power OFF”.
Symbol for “Type B applied part”.
Symbol for “Warning High-voltage”.
Symbol for “Caution High-tempera-
ture”.
V
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Operating precautions
1. Operating environment
1) Instrument should be operated only by qualified and trained personnel.
2) Handle the instrument with care, and do not apply strong shock to the instrument.
3) Avoid high temperature and humidity, direct sunlight, and dust when installing and storing the instrument.
Strictly observe the following environmental conditions.
Operating
10 to 35 °C
30 to 90 %
Transporting and storing
Environmental temperature
Relative humidity
15 to +55 °C
─
10 to 95 %
4) Avoid condensation when using, transporting or storing the instrument.
5) Do not connect a digital camera other than that supplied with this instrument. Using other camera may
adversely affect the safety or performance of this instrument.
6) Install the instrument in a room where the lighting is 5 lux or less which you may barely manage to read a
newspaper.
2. Precautions on electric system
1) When the instrument has not been used for a long period of time, inspect the items below.
Inspect if the objective lens is free from soils.
Inspect if intensity of the lamps appropriately adjustable.
2) Install the system in a location where there is little risk of the plug being pulled out while operating. If the
plug should be pulled out accidentally, be sure to turn OFF the main power before plugging the system
back in.
3) Kowa is not liable for malfunctions and/or damages resulting from maintenance and/or repairs performed
by the third party other than an agent authorized by Kowa.
4) Kowa is not liable for malfunctions and/or damages resulting from maintenance and/or repairs using parts
other than repair parts specified by Kowa.
5) The input voltage should always be maintained within ± 10% of the rated voltage.
6) Do not turn on the flash lamp and adjust photography light intensity at the same time.
7) Wait for approx. 1 minute until the instrument has safely started up.
8) Do not turn the main power ON and OFF in succession. Allow an interval of at least 10 seconds before
turning the main power ON and OFF.
9) Be sure to turn OFF the main power before connecting an external device.
10) Do not touch the patient and connectors at the same time as it may adversely affect the safety.
11) Disinfect using alcohol the parts accessible by the patient.
12) The power supply must be provided for the sole use of this instrument.
3. Precautions when using this instrument
1) Carefully handle the objective lens as soiled or scratched part of the objective lens may be imaged as
white spots.
2) Always cover this instrument when not in use in order to protect them.
3) Do not apply strong shock or force to the objective lens.
4) Set a dial or knob with clicking positions to its designated position.
5) Do not press sharp instruments or tools against the LCD monitor or add excessive force to the monitor.
6) Never disassemble or adjust this instrument by yourself as it uses precision parts which requires special
tool for doing so.
4. Disposal precautions
When disposing this instrument, applicable federal, state, and local regulations must be observed. Ensure
that disposal is handled by a licensed industrial waste disposal contractor in accordance with the applicable
regulations and ordinances.
5. Replacement of the Aluminum Electrolytic Capacitor
The aluminum electrolytic capacitor for the flash lamp, which is used in the power supply section of this
instrument, is a component requiring regular replacements. The useful life of this type of components
may be significantly reduced depending the frequency and conditions in which this instrument is used. If
the capacitor is used beyond its useful life, its electrolytic solution may leak or drain, which can result in
abnormal odor, smoke, bursting sound, and other failures.
The design life of the capacitor is 50,000 flashes when used in an ambient temperature of 25°C.
This is, however, only a guideline, and the capacitor may need to be replaced earlier depending on the
usage environment. In order to ensure safe and stable operation of this instrument, early replacement
of the aluminum electrolytic capacitor is recommended. Replacement of components requiring regular
replacement, such as aluminum electrolytic capacitor, is supported as a paid service. For more information
about replacement of such components, please contact Kowa or your Kowa dealer.
6. Prescription device caution:
Federal law restricts this device to sale by or on the order of a Physician or Practitioner.
Caution
For US market
VI
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● Combination of medical electrical equipment and non-medical electrical equipment
IEC 60601-1-1 “Safety requirements for medical electrical systems” describes the components combination
grouped into various clinical settings. The brief overview of IEC 60601-1-1 is shown below.
Medically used room
Feasible solution
Non-medically
used room
Inside
the PATIENT
ENVIRONMENT
Outside
the PATIENT
ENVIRONMENT
Situation No.
(See clause 19 in all
situations)
1a Items A and B in
PATIENT ENVIRON-
MENT
A
B
IEC
IEC
60601
60601
For B:Additional
protective earth or
separating transform-
er
1b Items A and B in
PATIENT ENVIRON-
MENT
A
B
IEC
IEC
60601
XXXXX
1
1c Item A powerd
from specified power
supply in item B in
PATIENT ENVIRON-
MENT
A
For B:Additional
protective earth or
separating transform-
er
IEC 60601
B
IEC XXXXX
2a Item A in PATIENT
ENVIRONMENT and
item B in medically
used room
A
B
IEC
IEC
60601
60601
2
2b Item A in PATIENT
ENVIRONMENT and
item B in medically
used room
A
B
For B:See 19.201
and its rationale
IEC
IEC
60601
XXXXX
A
B
3a Item A in PATIENT
ENVIRONMENT and
item B in non-medical-
ly used room
IEC
IEC 60601
or IEC XXXXX
For B:See 19.201
and its rationale
60601
Common protective earth
3
A
B
3b Item A in PATIENT
ENVIRONMENT and
item B in non-medi-
cally used room
For B:Additional
protective earth or
SEPARATION DE-
VICE
IEC
IEC 60601
or IEC XXXXX
60601
Protective earth with
potential difference
Protective earth
KEY TO TABLE
• Additional protective earth : If necessary, provide additional protective earthing , which is permanently
connected(See also 58.201).
NOTE Equipment modification may be required.
• Separating transformer
: If necessary, limit the ENCLOSURE LEAKAGE CURRENT, by using an ad-
ditional separating transformer according to annex EEE.
NOTE1No equipment modification is required.
NOTE2A separating transformer is a transformer with one or more input winding(s) separated from the
output winding(s) by at least basic insulation [IEC 60989].
• SEPARATION DEVICE
: If necessary, apply SEPARATION DEVICE.
• IEC 60601
: MEDICAL ELECTRICAL EQUIPMENT in compliance with IEC 60601.
: Non medical equipment in compliance with relevant IEC safety standards.
• IEC XXXXX
VII
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Precautions: use of medical electrical system
1. Precautions on use of medical electrical system
1) All components of this medical electrical system may be installed within a limited patient environment (a
radius of 1.5 m around a patient) when all components are installed in accordance with the installation
instructions using “Multi-tap with Isolation Transformer”, which is one of the system components.
2) As prerequisite for installing to this system, other components (a PC, printer, video capture printer, video
monitor, or other devices) which do not comply with IEC60601-1 must be powered from Multi-tap with
Isolation Transformer. The electric power to these components supplied from an electric source other
than Multi-tap with Isolation Transformer (e.g., wall outlets) may cause increased enclosure leakage
current or potential difference between protective grounds resulting in the injury to the patient or operator.
Use Multi-tap with Isolation Transformer only for supplying the power to the components other than the
system components.
3) Any medical electrical equipment that connected to this system to compose a medical system must
comply with IEC60601-1.
4) Any non-medical electrical equipment that is connected to this system to compose a medical system
must comply with safety standards of IEC or ISO provisions applicable to such a non-medical electrical
equipment.
5) Do not use any additional multi-tap or extension power cable other than those Kowa specified to this
system.
6) Power supply to this system or “Multi-tap with Isolation Transformer” must be provided individually. (Do
not route the power supply through other multi-tap to the system or “Multi-tap with Isolation Transformer”.)
7) The power cable for an electrical equipment that compose a medical system must have durability that
meets IEC60245/IEC60227 or higher standards.
8) Assure that the power supply is turned OFF when connecting other device to the system.
9) Do not turn ON the power supply until all devices are completely connected.
10) Do not place or install the devices and the system components on the unstable or inclined table.
2. Precautions for use of “Multi-tap with Isolation Transformer”
1) Do not place “Multi-tap with Isolation Transformer” directly on the floor. Water droplets during room
cleaning may enter the multi-tap resulting in the component failure.
2) The power supply cable to “Multi-tap with Isolation Transformer” must be connected to a power
receptacle with a protective ground terminal equipotential to the protective ground of this instrument.
3) When using a multi-tap power receptacle with a protective ground terminal, read the instruction for use
attached to the receptacle to familiarize yourself with the correct use before use.
3. Daily maintenance and cleaning
1) System components
• Wipe the soiled outer surface with firmly squeezed dampened soft cloth. Use mild detergent to remove
excessive soils. Do not use chemicals or solvents such as thinner and benzene. (As the LCD monitor
screen cover easily gets scratched, lightly wipe it with soft cloth such as gauze.)
• Refer to the instruction for use provided with each device for details of device maintenance and cleaning.
2) Power cables, connecting cables, and connectors
• Visually inspect that all cables have no flaw or damage.
• Visually verify that earth leads of all components and protective ground terminals are securely connected.
• Disconnect the power cables from the power supply receptacles when you do not use the system for a
long period of time.
3) Others
• When you add a PC to the system for a filing purpose, captured images are stored in the HDD of the PC.
Back up the data stored in the HDD regularly since HDDs may have a mechanical or electrical failure.
VIII
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Operational considerations for hospital grade electrical
instrument (safety and accident prevention)
1. Only qualified 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 affected by atmospheric pressure, temperature, humidity,
ventilation, sunlight, dust, 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) Instrument must not be installed at locations where chemicals are stored or gasses are generated.
5) Be careful with the radio frequencies, voltages and allowable amperes (power consumption) of the power
supply.
6) Properly connect ground wires.
3. The following items shall be considered before using the instrument.
1) Make sure that instrument activates properly after checking switch contact, polarity, dial setting and
meters and so forth.
2) Make sure that the instrument is properly grounded.
3) Make sure that all cords are properly connected and secured.
4) Use of other instruments and appliances on the same power circuit is liable to cause errors and incorrect
flash output resulting in incorrect diagnosis or hazards.
5) External circuits and connectors that may come in direct contact with the patient must be checked
frequently for signs of wear.
4. The following items shall be considered when using the instrument.
1) Be sure to minimize the time and quantity required for diagnosis and treatment.
2) Always assure that the instrument and patient are in good condition.
3) When an abnormality is found on the instrument, take proper measures, for instance, to stop the
operation of the instrument while assuring the patient’s safety.
4) Do not allow the patient to touch any of the instrument controls.
5. The following items shall be considered after using the instrument.
1) Turn OFF the instrument after setting control switches, dials and so forth to their initial status following
with a specified procedure.
2) Do not pull cords for removal because an excessive force is exerted on them.
3) The following shall be considered regarding storage location.
•
•
Store the instrument at locations free from splashes of water.
Store at a location which will not be adversely affected by atmospheric pressure, temperature, humid-
ity, ventilation, sunlight, dust, air containing salt, sulfur and other substances, and the like.
Take care to guard against tilt, vibration and strong impacts, for instance, during transportation.
Instrument must not be stored at locations where chemicals are stored or gasses are generated.
•
•
4) Clean and rearrange accessories, cords, and the like.
5) The instrument must be cleaned prior to use so that there will be no problem when using it again.
6. In case of a problem or malfunction, stop the operation and contact Kowa or your Kowa dealer for repair.
7. Instrument shall not be modified.
8. Maintenance
1) Periodically check the instrument and its components for any abnormality.
2) When using the instrument that has not been used for a while, it must be checked beforehand to assure
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 IEC 60601-1-2.
The purpose of this standard is to keep safety against the dangerous obstacle in typical medical facilities.
When this instrument is influenced by other instrument, or when it affects other instrument or when there
is such fear, please devise to move this instrument and other apparatus or to make the distance between
those instrument.
Moreover, if there is an unknown point, please consult our company, or an agency beforehand.
IX
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Components and supplies
Main unit
Optical Component
Power supply
Accessories
USB cable 1(A─mini-B type×2):1(2.3m)
Objective lens cap holder: 1
Illumination lamp: 1
Instruction manual: 1
Setup manual: 1
Blower:1
Dust cover:1
Chin rest
paper:1
Chin rest paper Compact flash
retaining pins:2 memory card: 1
Hex wrenches: 3 Head bands: 2
Fuses:2
X
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Optional accessories
Internal fixation target: 1
K9L-PE56
Grips: 2
K9L-GR56
Forehead rest: 1
K9L-HR56
Exciter & Barrier filter set for FAF: 1
Bar code reader: 1(1.6m)
VK-CB2H
Card reader: 1(1.2m)
VK-CB2G
K9L-IF56K
LAN cable(cross):1(5m)
K9L-SC56B
USB cable 2(A-B type):1(5m)
K9L-SC56C
XI
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MENU
Introduction............................................................................................. I
Operational considerations for safety ....................................................................................I
Meanings of symbols............................................................................V
Operating precautions .........................................................................VI
Precautions: use of medical electrical system................................VIII
Operational considerations for hospital grade electrical instrument
(safety and accident prevention) ........................................................IX
Components and supplies....................................................................X
Main unit ...............................................................................................................................X
Accessories ..........................................................................................................................X
Optional accessories ...........................................................................................................XI
MENU....................................................................................................XII
1 System description.................................................................................. 1
1.1
1.2
1.3
1.4
1.5
Indication for use .......................................................................................................1
System overview........................................................................................................1
Features.....................................................................................................................1
Name and function of each component.....................................................................2
LCD monitor indications ............................................................................................6
2 Preparation............................................................................................... 8
2.1
2.2
2.3
2.4
2.5
2.6
2.7
Assembly and installation..........................................................................................8
Inserting/ removing compact flash memory card.......................................................8
System connection configuration...............................................................................9
Turning ON the power .............................................................................................10
Turning OFF the power............................................................................................10
Retinal camera preparation ..................................................................................... 11
Preparatory procedure of the examined eye ........................................................... 11
3 Basic operation...................................................................................... 12
3.1
3.2
3.3
How to use the control lever....................................................................................12
Non-mydriatic photography/ autofluorescence photography procedures................13
Mydriatic color/ Red Free photography procedures ................................................16
XII
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3.4
3.5
Mydriatic Fluorescein angiography procedures.......................................................19
Viewer mode functions and procedures ..................................................................23
4 Advanced operation .............................................................................. 30
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
Tilt and panning .......................................................................................................30
Small pupil photography..........................................................................................31
LCD Monitoring........................................................................................................33
Switching fixation target...........................................................................................34
-
Additional adjustment of the flash intensity(+5 or more, 5 or less) ........................37
Blue/Brown button ...................................................................................................37
Customize button ....................................................................................................37
Power saving function ............................................................................................38
Recalling and printing images .................................................................................38
5 Setting..................................................................................................... 39
5.1
5.2
5.3
5.4
5.5
Main.........................................................................................................................39
Capture....................................................................................................................41
Viewer .....................................................................................................................42
Advanced functions .................................................................................................43
Maintenance............................................................................................................46
6 Troubleshooting..................................................................................... 48
7 Maintenance and inspection................................................................. 52
7.1
7.2
7.3
7.4
7.5
Daily maintenance...................................................................................................52
Daily inspection .......................................................................................................53
Daily cleaning ..........................................................................................................54
Replacement of consumables .................................................................................55
Regular inspection...................................................................................................59
8 Specifications ........................................................................................ 60
9 Technical information............................................................................ 61
9.1
9.2
9.3
Folder structure and data format of the compact flash memory card......................61
Number of photographs taken using the supplied memory card.............................63
File format and name of the files generated in the Network connection setting......63
10 Light Hazard (ISO 15004-2) ................................................................... 64
11 Electromagnetic compatibility (IEC60601-1-2).................................... 68
XIII
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XIV
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1 System description
1.1 Indication for use
The KOWA VX-20 is intended for taking picture of retinal images with mydriatic or without mydriatic.
1.2 System overview
This instrument is a retinal camera, capable of capturing both non-mydriatic and mydriatic, has two photog-
raphy field angles of 50º and 30º (45º and 27º for non-mydriatic), with ability to perform various photography
such as Red Free photography and Fluorescence angiography and FAF photography (optionally available).
1.3 Features
•
•
•
•
•
•
•
Provides filmless photography with full computerization
Large screen touch the LCD monitor
Significantly lowered eye level; as much as 75mm compared with the previous model
Equipped with simplified filing function
Finer flash compensation
Gathering operations to close at hand
Offers wide range of photography modes
1
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1 System description
1.4 Name and function of each component
Main unit
External fixation target
It freely moves patient’s fixation.
Optical viewfinder (eyepiece)
This is an optical viewfinder (eye-
piece) capable of using in mydri-
atic color photography, Red Free
photography, and Fluorescence
angiography. It is equipped with
the diopter adjust function to use
for observing retinal images with
unaided eye.
Eye level mark
indicating lamp
Located on the both sides.
LCD monitor
It displays an alignment image
used for aligning the anterior seg-
ment or retinal, and focusing in
black-and-white live image. Also, it
displays simplified filing or photog-
raphy information.
Panning arm
It helps to move the optical head
leftward/rightward.
There is a lock lever on the left.
For selecting the methods for pa-
tient’s fixation, and changing the
position of the internal fixation tar-
get, select the buttons on the LCD
monitor with the touch panel.
Instrument label
Shutter button
It is a button to fire the flash light
for photography.
Control lever
It is a stick to move the optical
head lengthwise or crosswise. By
rotating the stick, the optical head
is moved upward/downward.
Air vent
Wind generated by the internal cool-
ing fan blows out.
Operation panel
(See the next page for details)
Adjusters
They can adjust the retinal camera
to be level. There are four of them.
2
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1 System description
Field angle selection button
It is a button to switch the field angles between 50º/30º in mydri-
atic, and between 45º/27º in nonmydriatic.
Photography mode switching buttons
FA button
Observation light intensity con-
trol knob
It is a button to switch the photography mode to FA.
RF/FAF button
It is a knob to adjust the intensity of the
It is a button to switch the photography mode to
illumination during observation.
Red Free or FAF.
Mydriatic color button
It is a button to switch the photography
mode to mydriatic color.
Flash intensity compensation knob
It is a knob to adjust the intensity of the
illumination when photographing.
Non-mydriatic color button
It is a button to switch the photog-
raphy mode to non-mydriatic color.
Lock lever
Diopter compensation buttons
Lock the optical head base by op-
They are buttons to insert a lens to
erating the lever.
correct the diopter of the patient’s eye.
LCD monitoring button
It is a button to observe on the LCD moni-
tor in mydriatic color photography, Red
Free photography, Fluorescence angiog-
raphy (mydriatic fluorescence), and auto-
fluorescence photography (FAF [optionally
available]) modes.
Chin rest buttons
They are buttons used for raising or lowering the chin rest.
Timer button
S.P. button
It is a button to starts counting the timer in FA.
By using this button when the mydriatic state is
insufficient, brighter photography images can
be captured.
Barrier filter button
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1 System description
Lamp cover
W.D. switch
It turns on/off the illuminating dots
for detecting the alignment position
of the retinal camera. It can be
Air vent
Wind generated by the internal
used for mydriatic color photogra-
phy, Red Free photography, Fluo-
rescence angiography, and auto-
fluorescence photography (FAF).
cooling fan blows out.
Forehead rest
Used for resting the pa-
tient’s forehead against it.
Head band mounts
F.D. switch
Mount to attach the head
band. Located on the both
sides.
It turns on/off the luminous bar for
detecting the focus. It can be used
for mydriatic color photography,
Red Free photography, Fluores-
cence angiography, and autofluo-
rescence photography (FAF).
Objective lens
Internal fixation target
socket
Chin rest
Used for sustaining the pa-
tient’s chin position.
Focusing knobs
Knobs located on both sides of the
optical head base, used for focusing.
Tilting handle
This is a handle to tilt the optical head.
There is a lock mechanism.
Tilting arm
Grip socket
It helps to move the optical head
Located on the both sides.
upward/downward.
Power supply unit
(See the next page for details)
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1 System description
I/O port
Power supply unit
Power switch
Compact flash memory card insert slot
It is a switch to turn on/off the power
Accepts a compact flash memory card [supplied].
of this instrument.
I: ON, : OFF
Cable clamps
Ejector button
Used for holding cables to keep
When pressed, the compact flash
them from being disconnected
memory card comes off.
Fuse holder
Image output terminal
Photography condition output terminal
Ethernet connector
Used in the VK connection mode.
Used for connecting an external PC
in the Network connection mode.
Data output terminal
Used to connect an external PC with a USB cable in
the Network connection mode.
USB connector
Used for connecting a numerical keypad,
ID card reader, printer to the instrument.
5
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1 System description
1.5 LCD monitor indications
In this section, the information and buttons displayed on the LCD monitor are described.
1.5.1 Capture mode screen
1
q
w
e
r
t
2
4
6
3
5
7
8
9
0
-
^
\
Timer
Flash intensity compensation buttons
1
-
By pressing the timer button in the Fluorescence angiogra-
phy mode, it will be displayed on the LCD monitor and start
counting. It counts up to 59:59 in Minute:Second display.
It appears when the flash intensity compensation knob on
the panel is at the position of +5 or 5. It enables a wider
─
range of light intensity compensation.
Photography mode
This indicates the photography mode currently selected.
EXIT button
It is a button to terminate this instrument. Press it to termi-
nate the instrument before turning off the power switch.
2
3
4
5
6
7
^
\
q
w
LCD monitoring mode
Used for the LCD monitoring mode.
ID
The current patient's is indicated. Do not appear in VK con-
nection mode.
Field angle
This indicates the current field angle.
VIEWER button
It is a button to go to the Viewer mode from the Capture
mode.
Left or right eye
This indicates which eye will be photographed.
Fixation target selection button
Diopter compensation
This indicates the state of the diopter compensation lens.
It is a button to select the fixation target. When this button
is pressed, each fixation target is displayed in a button, and
becomes selectable.
Fixation target information
This indicates the information of the fixation target currently
selected.
STILL/VIEW selection button
e
It is a button to hide or display an image immediately after it
is photographed. It is not displayed when VK connection is
selected.
Filter
8
9
0
It indicates whether the filter for fluorescent is inserted.
Customize button
It is a user-defined button in the setting.
r
t
Aperture
This indicates that a large value is selected in the aperture.
Blue/Brown button
Used to adjust the intensity which is suitable for blue eyes.
Flash intensity
The intensity of light emitting from the photography flash
lamp is indicated.
6
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1 System description
When you press the “Fixation target selection button”, particular bottons appear shown below.
y
u
i
o
p
VIEWER
US
When you press the “PERIPHERAL button”, particular
bottons below appear.
USER2 STILL VIEW
USER3
RERI
BLUE
BROWN
@ [
EXT button
PERIPHERAL button
BACK button
y
u
i
o
p
@
[
CENTRAL button
DISC button
NEXT button
MACULA button
1.5.2 Viewer mode screen
s
d
f
g
h
j
k
a
Setting button
It is a button to set various settings.
VIEW button
Used to display a next image of the currently played image.
a
s
d
f
g
h
j
k
CAPTURE button
Used for changing to the Capture mode.
MULT button
Used to display an image of the same ID in four sections.
Input ID button
It is a button to input IDs.
PRINT button
Used to print out the currently displayed image.
REVIEW button
TRASH button
Used to display a previous image of the currently played im-
Used to delete the currently displayed image from the com-
age.
pact flash memory card.
7
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2 Preparation
2.1 Assembly and installation
Following the assembly manual provided separately, assemble the power supply unit and the optical
component. Assembly must be done by qualified personnel who have received assembly training pro-
vided by Kowa or a Kowa dealer.
1
Place the retinal camera on a stable surface, such as a powered optical table (optional device).
As needed, adjust the adjuster so that the retinal camera will be level.
2
3
Make sure that the power switch is in the OFF position, and connect
the power supply cable plug to a 120VAC power outlet.
If you want to attach the objective lens cap holder, attach it directly on
or near the instrument.
4
5
Recommended location
2.2 Inserting/ removing compact flash memory card
When using the instrument in the Stand-alone setting (see “2.3.1 Stand-alone”) , make sure that the com-
pact flash memory card is inserted. To transfer data from compact flash memory card to a computer, follow
the procedures and notice below to remove the card.
2.2.1 Inserting a compact flash memory card
Slowly insert the supplied compact flash memory card, Kowa logo
facing up, in the compact flash memory card insert slot as far as it
goes.
Check that the ejector button comes out.
Notice
¿
Do not use a compact flash memory card other than the one supplied with the instrument.
¿
Do not use any compact flash memory card other than the one supplied with this instrument or
designated by Kowa.
8
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2 Preparation
2.2.2 Removing a compact flash memory card
Slowly press the ejector button to eject the compact flash memory
card.
Then, hold and slowly pull out the card.
Notice
¿
Do not attempt to remove the compact flash memory card without using the ejector button.
Do not remove the compact flash memory card immediately after an image is photographed.
¿
2.3 System connection configuration
This instrument may be used in 3 connection configurations.
• Stand-alone: Images taken by the instrument are acquired by the instrument itself as a stand-alone system.
• VK connection: Images taken by the instrument are acquired directly by Kowa filing system.
• Network connection: Images taken by the instrument are acquired by a computer via a network.
Important
◇ When you use a peripheral device and/or other device connected to the peripheral device, it must
meet all applicable EN(IEC) standards.
◇ Data processing device must meet IEC60601-1 or IEC60950.
The system that combines such data processing device must meet IEC60601-1-1. The system admin-
istrator who builds such system bears all responsibility to have the system comply with requirement of
IEC60601-1-1. Should you have any question, contact Kowa or your Kowa dealership.
2.3.1 Stand-alone (factory default)
Following the procedure described in Section 2.2.1, insert the com-
pact flash memory card.
As needed, connect a USB-enabled printer to “USB connector” port.
¿
The maximum power that may be supplied through a USB port is
500 mA.
Notice
¿
In the Stand-alone setting, photographed images are saved in the compact flash memory card in-
serted to this instrument. Photography function is disabled when the compact flash memory card
becomes full. Damage to the compact flash memory card may result in an inability to access to the
data saved in the card. Transfer data in the card to a computer on a regular basis.
9
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2 Preparation
2.3.2 VK connection
In order to use this instrument in the VK connection setting, Kowa VK series (optional device) and the
USB cable 1 are required.
For information on the installation and use of the VK series, refer to the installation and the user manuals
supplied with the VK series.
Use the USB cable 1 to connect “Image output terminal” and “photography condition output terminal”
of this instrument and USB ports of the VK series. Use a designated USB port to connect if you are in-
structed to do so.
After starting up this instrument, change the connection configuration to “VK connection” following the
procedure described in Section 5.1.5. After the instrument is started up, a message “No compact flash
memory card” appears as you switch to the viewer mode; press “OK” and continue.
When the instrument is connected to the VK series and the correct settings are made on both the instru-
ment and the VK series, be sure to photograph images as a trial and check that images and photograph-
ing conditions are correctly acquired.
USB cable 1
2.3.3 Network connection
In order to use this instrument in the Network connection setting, a computer (optional device) with image
acquisition software installed is required along with K9L-SC56B (optional accessory) or K9L-SC56C (op-
tional accessory).
To use the instrument in this setting, you must establish a network containing this instrument and other
external devices. The network must be established by Kowa or a Kowa dealer representative and quali-
fied personnel knowledgeable in network configuration; therefore, please contact Kowa or a Kowa dealer
in advance.
K9L-SC56C
K9L-SC56B
2.4 Turning ON the power
Turn ON power switch.
1
2
It takes approximately 40 seconds for the instrument to be fully ready for operation. Wait until the start-up
logo disappears and photography information is displayed on the LCD monitor.
2.5 Turning OFF the power
Make sure that the the instrument is in the capture mode. If it is in the viewer mode, press “CAPTURE
button” to go to the capture mode.
Press “EXIT button”. A message appears asking whether you want to end the operation; if there is no
problem, press “OK” to turn off the optical head.
The LCD monitor goes dark and all panel lamps except for the Power lamp go off. When the Power lamp
turns orange, switch the power switch to the OFF position.
1
2
3
10
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2 Preparation
Notice
¿
Turning OFF the instrument without following the above procedures may result in a loss of data or
damage to the instrument. With an exception of emergency situations, follow the above procedures to
turn OFF the instrument.
¿
The power switch does not go OFF automatically. Do not forget to turn OFF the power switch.
2.6 Retinal camera preparation
Following the daily inspection list in “7.2 Daily inspection”, prepare the retinal camera for operation.
2.7 Preparatory procedure of the examined eye
In case of mydriatic photography, apply mydriatic eye drops to the examined eye. After it dilates fully,
guide the patient to the retinal camera. In case of non-mydriatic photography, take the patient to a dark
room and let the examined eye dilate spontaneously.
1
Make sure that the pupil is sufficiently open.
2
Sufficient diameter of the pupil is 5.5 mm or more in mydriatic mode, 4.0 mm or more in small pupil mode
and 4.0 mm or more in non-mydriatic mode.
Mydriatic photography is
enabled if 5.5 mm or more
in diameter.
Small pupil or non-mydriatic
photography is enabled if 4.0
mm in diameter.
3) Fixing the patient
1. Instruct the patient whose eyes are dilated sufficiently, to be seat-
ed in front of the retinal camera.
2. Adjust the height of a powered optical table to let the chin on the
chin rest and the forehead on the forehead rest in a natural pos-
ture.
3. The height of chin rest can be adjusted with the chin rest buttons.
4. Set the examined eye at the eye level mark indicating lamp. (See
illustration on the right.)
Important
◇ When using mydriatic eye drops, be sure to follow the instruction of the eye drops.
11
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3 Basic operation
3.1 How to use the control lever
The control lever is used to move the optical component of the retinal camera lengthwise or crosswise, and
upward/downward. When roughly divided, there are three ways to use it:
• Coarse motion:
• Fine motion:
• Upward/downward motion:
moves the optical component lengthwise or crosswise broadly.
moves the optical component lengthwise or crosswise finely.
moves the optical component upward/downward.
For coarse motion control
Grab the control lever completely in a hand.
While holding the control lever in upright position, move it lengthwise
or crosswise so that the entire panel will move.
1
2
For fine motion control
Hold the control lever with your finger tips.
Tilt the control lever lengthwise or crosswise.
The optical component is moved to the direction where the control le-
ver is tilted.
1
2
For upward/downward motion control
Hold the control lever with your finger tips.
Rotate the control lever, the optical component is moved upward/
downward.
1
2
Rotate clockwise:
Rotate counterclockwise: the optical component is moved downward.
the optical component is moved upward.
Downward
Upward
12
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3 Basic usage
3.2 Non-mydriatic photography/ autofluorescence photography procedures
This section describes the basic operation procedures for non-mydriatic and autofluorescence photography.
The operation of buttons explained in the procedures is based on the factory default. If the settings have been
changed, operate the buttons according to the modified settings. In order to photograph images with natural
dilation, dim the illumination of the room so that you may barely manage to read a newspaper (approx. 5 lx.)
Enter, switch, or check the ID.
1
According to the system connection configuration, enter, switch, or check the patient’s ID.
In the Stand-alone setting, the patient’s ID may be entered or switched. Refer to 3.5.1 to enter an ID or
switch between IDs.
In the VK connection setting, IDs are managed through the VK series connected to this instrument.
Please read the user manual supplied with the VK series for operational procedures.
In the Network connection setting, the function depends on the external device connected to the instru-
ment. Follow the user manual of the external device for the details on available functions and operational
procedures.
Select a photography mode.
2
With the “photography mode switching buttons” on the right side panel, press the “Non-mydriatic button”
once for non-mydriatic photography; press the “RF/FAF button” twice for autofluorescence photography.
Adjust the flash intensity.
3
The flash intensity is automatically set according to the photography
mode. If it is necessary to adjust flash intensity, you may do so with
the flash intensity compensation knob.
Select a field angle.
4
Press the “field angle selection button” to select a field angle.
13
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3 Basic usage
Select a fixation target.
5
Press the “fixation target selection button” on the LCD monitor to select a fixation target and the position
of the patient's eye fixation.
Compensate the diopter.
6
As needed, press the “diopter compensation buttons” on the right side
panel and use the diopter compensation lens.
The diopter range of each button is shown below.
+:+10 to +35D
0:
─
─
12 to +13D
32 to 10D
─
:
─
Pull the main unit towards you as far as it goes, and move the optical
head base horizontally and/or the optical component vertically so that
the patient's eye is displayed in the center of the LCD monitor.
7
Adjust the working length.
8
Slowly move the optical head base forward until the working dot is shown on the retinal image. (Coarse
motion)
Adjust the position of the main unit so that the working dot shown on the retinal image becomes the
brightest on the working dot aid. (Fine motion)
VIEWER
VIEWER
NON-MYD
NON-MYD
ࠋ ꢀ ࠋ ꢀ 45
L
45
L
FIXATION
FIXATION
USER1
USER2
USER3
USER1
USER2
USER3
Central
Central
12.5W
12.5W
EXIT
EXIT
ID: 123
ID: 123
Notice
¿
Maintain a sufficient distance to avoid hitting the patient while moving the instrument in a coarse mo-
tion.
14
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3 Basic usage
Adjust the focus.
9
Turn the “focusing knob” to adjust the focus. When you turn the focusing knob, the focus dots on the
LCD monitor move left and right. Turn the focusing knob so that the upper and lower focus dots come to
form a straight line.
Notice
¿
The focus dots are not displayed when using the diopter compensation lens. Adjust the focus as you
view the retinal image on the LCD monitor.
Photograph the image.
0
Press the “shutter button” to activate the flash and photograph the im-
age.
When the connection configuration in “Stand-alone” or “Network con-
nection”, images are displayed in the preview window immediately
after they are photographed
15
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3 Basic usage
3.3 Mydriatic color/ Red Free photography procedures
This section describes the basic operation procedures for mydriatic color photography and Red Free pho-
tography.
Notice
¿
¿
In some cases, the use of mydriatics may aggravate patient's medical conditions or cause some pa-
tients to go into shock. Be sure to read the instruction for use carefully before using mydriatics, and
follow the instruction.
After photography using mydriatics, patient's pupils are dilated; therefore, patients may experience
glaring or blurred vision. Instruct patient to be careful when they walk or move around and refrain
from driving.
Enter, switch, or check the ID.
1
According to the system connection configuration, enter, switch, or check the patient’s ID.
In the Stand-alone setting, the patient’s ID may be entered or switched. Refer to 3.5.1 to enter an ID or
switch between IDs.
In the VK connection setting, IDs are managed through the VK series connected to this instrument.
Please read the user manual supplied with the VK series for operational procedures.
In the Network connection setting, the function depends on the external device connected to the instru-
ment. Follow the user manual of the external device for the details on available functions and operational
procedures.
Select a photography mode.
2
With the “photography mode switching buttons” on the right side panel, press the “Mydriatic color button”
for mydriatic photography; press the “RF/FAF button” for Red Free photography.
Compensate the diopter of the optical viewfinder. (eyepiece)
Clear of all objects within the distance of 3m from the objective lens.
Look through the optical viewfinder (eyepiece) and rotate the diopter
adjuster ring until the double lines become clear.
3
16
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3 Basic usage
Adjust the flash intensity.
4
The flash intensity is automatically set according to the photography
mode. If it is necessary to adjust flash intensity, you may do so with
the flash intensity compensation knob.
Select a field angle.
5
Press the “field angle selection button” to select a field angle.
Compensate the diopter.
6
As needed, press the “diopter compensation buttons” on the right side
panel and use the diopter compensation lens.
The diopter range of each button is shown below.
+:+10 to +35D
0:
─
─
12 to +13D
32 to 10D
─
:
─
Pull the main unit towards you as far as it goes, and move the optical
head base horizontally and/or the optical component vertically so that
the patient's eye is displayed in the center of the LCD monitor.
7
Adjust the working length.
8
Move the optical head base forward until the patient's pupil and the
ring illumination coincide. (Coarse motion)
Adjust the position of the main unit so that the working dot shown on
the retinal image becomes the brightest over the working dot aid. (Fine
motion)
Notice
¿
Maintain a sufficient distance to avoid hitting the patient while moving the instrument in a coarse mo-
tion.
17
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3 Basic usage
Guide the patient's fixation.
9
Use the external fixation target to guide the patient's fixation position
until the part you want to photograph becomes visible through the op-
tical viewfinder (eyepiece).
¿
¿
Position the external fixation target where the patient can fix the vi-
sion with the eye not examined.
If the patient's fixation cannot be achieved with the eye not pho-
tographed, press the “LCD monitoring button”; then, select an
internal fixation target using the “fixation target selection button”,
or use the internal fixation target (optional accessory) to guide the
patient's fixation.
Adjust the focus.
0
Turn the “focusing knob” to adjust the focus. When you turn the fo-
cusing knob, the focus dots on the LCD monitor move left and right.
Turn focusing knob so that the upper and lower focus dots come to
form a straight line.
Notice
¿
The focus dots are not displayed when using the diopter compensation lens. Adjust the focus as you
view the retinal image on the LCD monitor.
Photograph the image.
-
Press the “shutter button” to activate the flash and photograph the im-
age.
When the connection configuration is in “Stand-alone” or the “Network
connection”, images are displayed in the preview window.
18
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3 Basic usage
3.4 Mydriatic Fluorescein angiography procedures
This section describes the basic operation procedures for mydriatic Fluorescein angiography.
Notice
¿
¿
¿
In some cases, the use of mydriatics may aggravate patient's medical conditions or cause some pa-
tients to go into shock. Be sure to read the instruction for use carefully before using mydriatics, and
follow the instruction.
After photography using mydriatics, patient's pupils are dilated; therefore, patients may experience
glaring or blurred vision. Instruct patient to be careful when they walk or move around and refrain
from driving.
In some cases, the use of fluorescent agent may aggravate patient's medical conditions or cause
some patients to go into shock . Monitor the patient closely during photography and make sure that
there are no abnormal changes in the patient. Be sure to read the instruction for use carefully before
using fluorescent agent, and follow the instruction.
Enter, switch, or check the ID.
1
According to the system connection configuration, enter, switch, or check the patient’s ID.
In the Stand-alone setting, the patient’s ID may be entered or switched. Refer to 3.5.1 to enter an ID or
switch between IDs.
In the VK connection setting, IDs are managed through the VK series connected to this instrument.
Please read the user manual supplied with the VK series for operational procedures.
In the Network connection setting, the function depends on the external device connected to the instru-
ment. Follow the user manual of the external device for the details on available functions and operational
procedures.
Select a photography mode.
2
With the “photography mode switching buttons” on the right side pan-
el, press the “FA button”.
Compensate the diopter of the optical viewfinder (eyepiece)
Clear of all objects within the distance of 3m from the objective lens.
Look through the optical viewfinder (eyepiece) and rotate the diopter
adjuster ring until the double lines becomes clear.
3
19
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3 Basic usage
Adjust the flash intensity.
4
5
6
The flash intensity is automatically set according to the photography
mode. If it is necessary to adjust flash intensity, you may do so with
the flash intensity compensation knob.
Select a field angle.
Press the “field angle selection button” to select a field angle.
Compensate diopter.
As needed, press the “diopter compensation buttons” on the right side
panel and use the diopter compensation lens.
The diopter range of each button is shown below.
+:+10 to +35D
0:
─
─
12 to +13D
32 to 10D
─
:
─
Pull the main unit towards you as far as it goes, and move the optical
head base horizontally and/or the optical component vertically so that
the patient's eye is displayed in the center of the LCD monitor.
7
Adjust the working length.
8
Move the optical head base forward until the patient's pupil and the
ring illumination coincide. (Coarse motion)
Adjust the position of the main unit so that the working dot shown on
the retinal image becomes the brightest over the working dot aid. (Fine
motion)
Notice
¿
Maintain a sufficient distance to avoid hitting the patient while moving the instrument in a coarse mo-
tion.
20
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3 Basic usage
Guide the patient's fixation.
9
Use the external fixation target to guide the patient's visual fixation
until the part you want to photograph becomes visible through the op-
tical viewfinder (eyepiece).
¿
¿
Position the external fixation target where the patient can fix the vi-
sion with the eye not examined.
If the patient's fixation cannot be achieved with the eye not pho-
tographed, press the “LCD monitoring button”; then, select an
internal fixation target using the “fixation target selection button”,
or use the internal fixation target (optional accessory) to guide the
patient's fixation.
Adjust the focus.
0
Turn the “focusing knob” to adjust the focus. When you turn the focus-
ing knob, the focus dots on the LCD monitor move left and right. Turn
focusing knob so that the upper and lower focus dots come to form a
straight line.
Notice
¿
The focus dots are not displayed when using the diopter compensation lens. Adjust the focus as you
view the retinal image on the LCD monitor.
Start the timer.
-
Press the “Timer button” on the right side panel at the same time that
fluorescein is intravenously injected to the patient.
Elapsed time is indicated on the LCD monitor. The elapsed time at the
time of photography is also recorded in the photographed image.
Insert the barrier filter.
^
Press the “Barrier filter button” on the right side panel and insert the
barrier filter into the light path.
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3 Basic usage
Photograph the image.
\
Press the “Shutter button” to activate the flash and photograph the
image.
When the connection configuration in “Stand-alone” or “Network con-
nection”, images are displayed in the preview window immediately
after they are photographed.
¿
¿
Holding down the shutter button allows you to con-
secutively take one photograph per second. This
function is useful during the initial period of the
fluorescence angiography.
Preview cannot be displayed quickly enough when
consecutively taking a photograph each second.
If you want to use this function frequently, it is rec-
ommended to set the connection configuration to
“VK connection.”
¿
With the flash intensity of 300W, you may take up
to 20 consecutive photographs at a speed of one
image per second. After taking 20 photographs
consecutively, allow approx. 1 minute without us-
ing the photography flash lamp. Otherwise the in-
strument may be damaged.
22
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3 Basic usage
3.5 Viewer mode functions and procedures
This section describes various functions of the viewer mode.
You may go to the viewer mode by pressing the “VIEWER button” on the LCD monitor while in the capture
mode.
You cannot take photograph in the viewer mode. Also, all buttons on the panel become disabled in this
mode.
If you go to the viewer mode during Fluorescence angiography, the timer indication disappears; however, the
timer continues and the timer indication resumes at the actual elapsed time when you return to the capture
mode.
23
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3 Basic usage
3.5.1 Entering an ID and switching between IDs
─
─
Entering an ID
This function is enabled while the connection configuration is in “Stand-alone” or “Network connection.”
Enter a new ID.
Numbers 0 through 9 and the hyphen (“─”) may be used for ID.
You may enter an ID directly with the keypad on the screen or read it through a designated card reader
(optional accessory) or bar code reader (optional accessory).
Procedure 1: Directly entering an ID
Press the “Input ID button”.
1
2
The current ID appears in the ID field. Check that all digits in the field are highlighted or delete the
current ID using the BS/Del key; then, use the keypad and enter a new ID. Check that the new ID
is displayed in the ID field and press “OK button”.
Procedure 2: Reading the ID through a card reader/ bar code reader
Press the “Input ID button”.
Read the ID through a card reader/ bar code reader.
Check the new ID is displayed in the ID field and press “OK button”.
1
2
3
1
2
3
Notice
¿
The last ID entered will be the Save/ View ID of the instrument. If you want to save or view images
under a different ID, follow the procedures in “Switching to another ID” and switch to the ID you
want to use.
¿
¿
Connect a card reader or bar code reader to the instrument before pressing the “Input ID button”.
A card reader or bar code reader must be configured according to its usage environment. If you
are to use a card reader or bar code reader, contact Kowa or your Kowa dealer in advance.
24
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3 Basic usage
─
─
Switching to another ID
This function is enabled while the connection configuration is “Stand-alone.”
You may switch from the current ID to an existing ID under which you want to save or view.
Procedure
Press the “Input ID button” to go to the ID screen.
Select an ID from the ID list shown in the ** section of the screen. The selected ID becomes high-
1
2
lighted.
Press “OK button”.
3
When more than 10 IDs are registered, use the list switching buttons to change IDs to view.
ID : N0 ID
2
LastVisited
ID
Today
-
7 8 9
4 5 6
1 2 3
CANCEL
OK
BS Del
0
3
3.5.2 Single image display
This function is enabled while the connection configuration is “Stand-alone.”
You may view the images saved under an ID one at a time.
This function is enabled immediately after you go to the viewer mode. The most recent image saved un-
der the selected ID is displayed.
Use the arrows on the LCD monitor to switch images; “VIEW button” for the next image and “REVIEW
button” for the previous image.
When you press “VIEW button” while the most current image is displayed, the oldest image appears.
When you press “REVIEW button” while the oldest image is displayed, the most current image appears.
The total number of images saved under the ID and the photography sequence number of the image dis-
played are indicated on the upper left of the image.
25
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3 Basic usage
3.5.3 Multiple image display
This function is enabled while the connection configuration is “Stand-alone.”
You may view the images saved under an ID, up to four images at a time.
─
─
Four-image display
CAPTURE
IN ID/LIST
REVIEW
VIEW
Press the “MULT button” on the LCD monitor while on
the single image display to show the four most cur-
rent images saved under the same ID.
MULT
PRINT
No ID
SETTING
TRASH
When you press “VIEW button” while on the four-image display, the four oldest images appear in one
window. When you press “REVIEW button”, the next four images, including the one immediately older to
the four previously on display, appear.
The total number of pages and the current page number, both of which are based on four-image display,
are indicated on the upper left of the four-image display window.
When you press the “MULT button”, four images indicated “A” in the illustration appear in a window.
Press “VIEW button” while the images A are displayed:
Press “REVIEW button” while the images A are displayed: Four images “D” appear in the window.
Press “VIEW button” while the images B are displayed: Four images “C” appear in the window.
Four images “B” appear in the window.
Press “REVIEW button” while the images B are displayed: Four images “A” appear in the window.
When the total number of images saved is not the multiples of 4, one to three most current images ap-
pear when you press the “MULT button.”
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3 Basic usage
─
─
Selected image display
While on the four-image display, press any of the images to view. “Select ” is indicated on the corner of
the selected images ( is a number of your selection).
After making your selection, press the “MULT button” again to view only the selected images.
Example: When 7, 3, 11, and 14 are selected in this order
The selected images are displayed as shown above.
Example: When two images, 7 and 3, are selected in this order
The selected images are displayed as shown above.
─
─
Switching back to the single image display
While on the four-image display, tap on an image twice, to go to the single image display of the selected
image.
If you press the “MULT button, while on the four-image display but there are no selected images, the
most current image of the four is shown.
¿
You may select up to four images.
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3 Basic usage
3.5.4 Deleting photographed images
This function is enabled while the connection configuration is “Stand-alone.”
You may delete images while viewing them.
─
─
While on the single image display
When you press the “TRASH button” while the image you want to delete is displayed, an alarm message
appears. If you are certain that you want to delete the image, press “Yes”. If not, press “No.”
─
─
While on the four-image display
Press the images you want to delete. “Select ” is indicated on the corner of the selected images ( is a
number of your selection).
When you press the “TRASH button”, an alarm message appears. If you are certain that you want to de-
lete the images, press “Yes”. If not, press “No.”
Notice
¿
Deleted images may not be recovered.
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3 Basic usage
3.5.5 Printing photographed images
This function is enabled while the connection configuration is “Stand-alone.”
You may print photographed images that are saved.
CAPTURE
IN ID/LIST
REVIEW
VIEW
MULT
PRINT
No ID
SETTING
TRASH
While on the single-image or multiple-image display, press the “PRINT button” to print the images that
are shown. If on the multiple image display, the photographed images are printed as shown in the LCD
monitor.
Notice
¿
A designated printer (optional device) is required to print photographed images.
3.5.6 Switching to the capture mode
You may switch from the viewer mode to the capture mode.
While in the viewer mode, press the “CAPTURE button” on the LCD monitor to go to the capture mode.
CAPTURE
IN ID/LIST
REVIEW
VIEW
MULT
PRINT
No ID
SETTING
TRASH
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4 Advanced operation
4.1 Tilt and panning
This instrument has the tilt and panning mechanism, which is used to photograph more surrounding field in
mydriatic color photography and fluorescence angiography.
4.1.1 Tilt
Rotate the tilt lock knob to the left as you face directly to the tilt lock knob to release the lock.
Turning the tilting handle to the right (as you face directly to the tilting handle) allows you to tilt the op-
tical component in an angle of depression.
1
2
Turning the tilting handle to the left (as you face directly to the tilting handle) allows you to tilt the opti-
cal component in an angle of elevation.
3
Point
The tilting mechanism has a level position, where you feel a
;
“click” when moving the instrument. When you have finished
photographing the surrounding field and return to the standard
photography, return the instrument to this position.
Tilting handle
When the tilting angle of elevation is insufficient in order to
;
photograph a surrounding field, you may use a higher forehead
rest K9L-HR56 (optional accessory), which moves back the pa-
tient's forehead and increase the angle of elevation,
Tilt lock knob
4.1.2 Panning
Rotate the panning lock lever to the left as you face directly to the panning lock lever to release the
lock.
Hold the area under the focusing knobs and slowly panning it to right or left.
1
2
Point
The panning mechanism has a reference position, where you feel a “click” when moving the instru-
ment. When you have finished photographing the surrounding field and return to the standard pho-
tography, return the instrument to this position.
;
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4 Other functions
4.2 Small pupil photography
This section describes how to photograph patients with a small pupil diameter.
While this method allows you to photograph patients with a small pupil diameter, there are such disadvan-
tages as smaller field angles or easier occurrence of a flare.
Press the “S.P. button” on the right side panel to change the pupil diameter that can be photographed.
The pupil diameter that can be photographed under each photography mode is shown below.
Photography mode
Mydriatic color
Standard
Φ5.5 mm
Φ4.0 mm
Φ5.5 mm
Φ4.0 mm
Φ4.0 mm
Φ5.5 mm
S.P.
S.S.P
Φ4.0 mm
×
Φ3.5 mm
Red Free
×
FA
Φ4.0 mm
Φ3.5 mm
Φ3.5 mm
Φ4.0 mm
Φ3.5 mm
Non-mydriatic color
FAF (Non-mydriatic monitoring)
FAF (Mydriatic monitoring)
×
×
Φ3.5 mm
¿
pupil of the diameter shown in the table or larger may be photographed.
Two levels of the S.P. mode is available for mydriatic color photography, fluorescence angiography, and
mydriatic monitoring in FAF.
The S.P. button on the right side panel is indicated as shown below:
Normal pupil diameter : Off
S.P.
: Lit
S.S.P.
: Flashing
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4 Other functions
The LCD monitor shows the approximate pupil diameter that may be photographed.
The outer circle of the double circles shown in the illustrations below is the approximate pupil diameter that
may be sufficiently photographed in the current diameter setting. The inner circle is the pupil diameter that
may barely be photographed in the current diameter setting. Use these circles as reference to select the
suitable pupil diameter for photography.
When you select Φ3.5mm as the pupil diameter to be photographed, a green line appears outside the outer
circle. This circle shows an area where a flare may occur during photography. Align the pupil so that the part
to be photographed is within the green line.
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4 Other functions
4.3 LCD Monitoring
This section describes how to perform alignment on the LCD monitor without using the optical viewfinder
(eyepiece) during mydriatic color photography, Red Free photography, fluorescence angiography, and mydri-
atic monitoring in FAF.
This function eliminates the need of diopter adjustment of the optical viewfinder (eyepiece).
Also, this mode uses infrared rays instead of visible light to observe patients; therefore, patients are relieved
of glaring, which facilitate smooth photography.
Pressing the “LCD monitoring button” on the right side panel switches
to the LCD monitoring mode.
Pressing the “LCD monitoring button” once again switches back to the
viewfinder monitoring mode.
Point
When the patient's pupil in natural dialation is 5.5 mm or more in diameter, mydriatic color observation
allows you to photograph with field angle of 50 degrees without using mydriatics .
The field angle for the standard non-mydriatic color photography is 47 degrees.
;
Important
◇ Images on the LCD monitor are not as clear as the ones in the viewfinder monitoring mode; therefore,
it becomes more difficult to remove a flare or adjust focus.
◇ Notice that when performing LCD monitoring in the FA mode, not only a fluorescence image but also
an actual captured image with infrared rays; therefore, the photographed fluorescence image differs
from the image seen while performing alignment.
Point
The LCD monitor angle may be changed. Adjust the angle if the LCD monitor is hard to see during the
viewfinder observation or while the optical head is tilted.
;
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4 Other functions
4.4 Switching fixation target
This instrument automatically switches to an appropriate fixation target and the position of patient’s eye fixa-
tion when the photography modes are changed.
Please note that fixation targets are automatically switched according to the photography mode, not accord-
ing to the state of the patient or the part required to be photographed.
This section describes how to change the fixation target and the position of the patient’s eye fixation.
Procedure
Press the “FIXATION button” on the LCD monitor.
Select a button from “EXT”, “CENTRAL”, “DISC”, “MACULA”, and “PERIPHERAL” buttons, which ap-
pear on the LCD monitor.
1
2
VIEWER
FIXTION
VIEWER
NON-MYD
50
D+
NON-MYD
50
D+
ࠋ ࠋ EXT
FIXATION
USER1
USER2
USER3
CENTRAL
DISC
Central
Central
SP4.0
SP4.0
MACULA
Blue
50W
Blue
50W
PERI
PHERAL
FLASHDOWN
EXIT
FLASH UP
FLASHDOWN
EXIT
FLASH UP
ID: No ID
R
ID: No ID
R
1
2
The function and main intended use of each button are shown below.
Button
Fixation target and its position
Common use
When you are observing under
visible light or want to guide the
patient's fixation to a part to be
photographed.
EXT
External fixation target
Internal fixation target: center of
posterior
When you want to guide the pa-
tient's fixation under infrared ray
observation. The position of the
fixation target is internally fixed in
the instrument; therefore, stability
is increased when photographing
repeatedly.
CENTRAL
DISC
Internal fixation target: center of
optic disc
Internal fixation target: center of
macula
MACULA
When you want to perform mosa-
ic mode photography with macula
in the center under non-mydriatic
observation.
You may configure the settings to
specify an area and sequence of
photography.
Internal fixation target: center of
macula, and one of eight periph-
eral points (according to the set-
ting)
PERIPHERAL
For all of the above fixation targets, a red and a green lamp alternatively turns on.
Important
◇ The internal fixation target is unavailable for mydriatic color photography, Red Free photography, or
fluorescence angiography (observation with visible light). To use the internal fixation target in these
photography mode, switch to the “LCD monitoring” mode.
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4 Other functions
─
─
About “Peripheral” photography
This section describes how to switch the light position of the fixation target and how to guide the patient's
fixation when “Peripheral” photography is selected.
Go to [Settings\Internal Fixation Target] to specify a photography sequence for a part to be photographed.
When “Peripheral” is selected, the fixation targets turn on to guide you through the specified sequence.
The fixation target applicable for the first part to be photographed is lit immediately after selecting “Pe-
ripheral”. The screen shows the guiding direction for the patient's fixation; guide the patient in the direc-
tion exactly as indicated.
Example:
1) To photograph the part No.1, “Center” is indicated on the LCD monitor.
You would say to the patient, “Please look at the luminous dot in the center.”
2) To photograph the part No.2, “Up” is indicated on the LCD monitor.
You would say to the patient, “Please look at the luminous dot above the center.”
3) To photograph the part No.3, “Left up” is indicated on the LCD monitor.
You would say to the patient, “Please look at the luminous dot on upper left.”
Once an image is photographed, the fixation target changes according to the next part to be photo-
graphed. Continue to guide the patient's fixation and photograph images.
VIEWER
NON-MYD
50
D+
ࠋ FIXATION
Ext
SP4.0
50W
RERI
PHERAL
FLASHDOWN
EXIT
FLASH UP
BACK
NEXT
ID: No ID
R
If the currently set photography sequence includes parts unnecessary to be photographed or if you want
to recapture an already-photographed part, you may use the arrow buttons (“NEXT button” and “BACK
button”) on the LCD monitor to change the sequence.
Press “NEXT button” to switch to the fixation target for the part to be photographed next.
Press “BACK button” to switch to the fixation target for the part previously photographed.
Point
The internal fixation target may not be visible to the patient immediately after switching the position.
First, guide the patient's fixation to the general area indicated on your monitor; then, instruct the pa-
tient to look at the luminous dot as it becomes visible during the alignment process.
;
35
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4 Other functions
─
─
About the internal fixation target (optional accessory)
Use the internal fixation target (optional accessory) if you want to record the patient's fixation position in
the photographed images.
Attaching the internal fixation target
1) Remove the cover of the internal fixation target socket on the optical component.
2) Remove the protective tube of the internal fixation target.
3) Screw the internal fixation target into the socket on the optical component.
Notice
¿
When removing the cover from the internal fixation target, be careful not to bend the body of the
fixation target.
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4 Other functions
-
4.5 Additional adjustment of the flash intensity(+5 or more, 5 or less)
You may use this function to compensate the flash in-
tensity beyond the compensation range allowed with the
flash intensity compensation knob.
When the flash intensity compensation knob is turned to
+5, a FLASH UP button” appears on the LCD monitor
"
that allows adjustment to higher flash intensity. Pressing
the button once increases the flash intensity by one level.
Similarly, when the flash intensity compensation knob is
turned to
─5, a “FLASH DOWN button” appears on the
LCD monitor that allows adjustment to lower flash inten-
sity.
These buttons allow adjustment to the maximum flash in-
tensity of 300W and the minimum flash intensity of 0.6W.
If you change the setting on the flash intensity compen-
sation knob while making an additional adjustment to
flash intensity, the adjustment made with the flash inten-
sity compensation knob precedes.
4.6 Blue/Brown button
The Blue/Brown button allows you to set the flash inten-
sity suitable for the iris pigment.
The standard setting at the factory default is “Brown”.
When you press the Blue/Brown button, “Blue” appear
on the screen and the flash intensity reduces by approxi-
mately 2.5 EV.
The new setting is enabled until you press the button
again.
4.7 Customize button
“Customize buttons” allow you to easily switch to pre-
set camera sensitivity, aperture size, and flash intensity
magnification.
Three customize buttons are available. For the methods
for changing the defaults, effects and targets, and setting
values, refer to 5.4.2 Customize button.
VIEWER
NON-MYD
50
D+
。
FIXATION
USER1
USER2
USER3
Central
SP4.0
Blue
50W
“Customize buttons” are enabled at any time during the
capture mode.
FLASHDOWN FLASH UP
Some photography modes, however, may not allow cer-
tain settings.
EXIT
ID: No ID
R
37
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4 Other functions
4.8 Power saving function
When the buttons on the operation panel and LCD monitor are not operated for a certain period of time (ap-
proximately 10 minutes), the instrument goes into the power saving mode.
During the power saving mode, the Power lamp is lit in green while all other lamps, such as LED lamps, ob-
servation lamps, photography lamps, and LCD monitor backlight, are turned off. All internal functions, except
for the ones required at minimum, are also turned off during this time.
The instrument recovers from the power saving mode when you press a panel button or touch the LCD
monitor.
4.9 Recalling and printing images
This function is enabled while the connection configuration is “Stand-alone.”
─
─
Recalling an image
When you want to examine an image closely after
preview is complete, you may recall the previewed
image by pressing the “STILL/VIEW button” on the
LCD monitor.
The recalled image remains on the LCD monitor until
the “STILL/VIEW button” is pressed again.
VIEWER
FIXATION
USER1
USER2
USER3
EXIT
No ID
─
─
Printing an image
A recalled image may be printed through a printer
connected to the instrument.
Press the “PRINT button” that appears in the recalled
image to print.
Notice
¿
Deleted images may not be recovered.
38
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5 Setting
5.1 Main
5.1.1 Monitor brightness
In this tab, you may adjust the brightness of the LCD
monitor,from level 1 through 10 with an increment of
one.
Main Capture Viewer Extension Maintenance
LCD Bright Date Power Saving Sound System
Adiust the moniter brightness.
5
APPLY
CANCEL
OK
5.1.2 Date
In this tab, you may set the date format and delimiter as well as adjust the date and time.
Main Capture Viewer Extension Maintenance
LCD Bright Date Power Saving Sound System
Main Capture Viewer Extension Maintenance
LCD Bright Date Power Saving Sound System
Set the display format and delimiter.
Set the display fo
Date 2011
/
5
/
:
27
28
Display Format
YYYYMMDD
Delimiter
/ (Slash)
(Hyphen)
Display Form
11
:
4
Time
APPLY
YYYYMM
MMDDYY
DDMMYYYY
test
APPLY
CANCEL
OK
APPLY
CANCEL
OK
datetime setting
g
CANCEL
MMDDYYYY
DDMMYYYY
-
OK
Select “YY(Year)MM(Month)DD(Day)” as the format.
You may select a slash or a hyphen as the delimiter
to separate year, month, and day.
When you press “Date button”, the setting dialog box
appears. When you press the “Change the setting
button”, control buttons appear next to each field. Use
the control buttons to set the date and time.
Main Capture Viewer Extension Maintenance
LCD Bright Date Power Saving Sound System
Set the display fo
Date 2011
/
5
/
:
27
28
Display Form
11
:
4
Time
APPLY
YYYYMM
MMDDYY
DDMMYYYY
APPLY
CANCEL
OK
g
CANCEL
Set
OK
5.1.3. Power saving mode
In this tab, you may configure the settings for the
power saving mode.
Main Capture Viewer Extension Maintenance
LCD Bright Date Power Saving Sound System
ON: When this instrument is not operated for ap-
proximately 10 minutes, it will resume the power
saving mode (LCD backlight is turned off; halogen
lamp, panel LED, and other lamps are turned off, and
charging function is suspended).
Set power saving mode.
OFF
APPLY
CANCEL
OK
※The Setting is applied when you pushed Apply or OK button.
OFF: The instrument will not resume the power sav-
ing mode.
39
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5 Setting
5.1.4 Operation sound
In this tab, you may enable or disable the operation
sound used in functions such as timer and alarm.
Main Capture Viewer Extension Maintenance
LCD Bright Date Power Saving Sound System
Timer
ON
Warning
OFF
APPLY
CANCEL
OK
5.1.5 System connection configuration
In this tab, you may set the system connection configuration of this instrument.
Stand-alone:
The instrument is used in stand-alone.
VK connection:
The instrument is connected to Kowa VX series.
Network connection: The instrument is connected to external equipment.
Select a button that suits the use of the instrument.
Main Capture Viewer Extension Maintenance
Date Power Saving Sound System
※The system logoff and logon, when you changed the system constitution.
Stand Alone
APPLY
CANCEL
OK
VK Connection
Reset the communication at VK Connection
D:\VX-20\Image
Network Connection
※Kowa serviceman set a directory of the
network and the setting of the TCP/IP.
Notice
¿
When using the instrument in Stand-alone, be sure to insert a compact flash memory card.
¿
When using the instrument in VK connection, use USB cable 1(A─mini-B type)(K9L-SC56A) to
connect this instrument and a VK series model.
¿
When using the instrument in Network connection, make sure a network path is specified. If a net-
work path is not specified, please contact Kowa or Kowa dealer representative.
40
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5 Setting
5.2 Capture
5.2.1 Flash intensity
Increments of flash intensity: You may set 0.3EV or 0.5EV to calibrate the increment of increase/de-
crease of the flash intensity compensation knob.
Flash intensity indication: The flash intensity may be
displayed on the LCD monitor as the position of the
flash intensity compensation knob (in ±) or as a value
in watt.
Main Capture Viewer Extension Maintenance
Start up
Image Quarity
Flash Intensity
Default Value
STEP
Select the compensation step value for Flash Intensity.
APPLY
CANCEL
OK
0.3EV
0.5EV
Reference flash intensity: You may set the reference
flash intensity of each photography mode, which is
the flash intensity at the zero (0) position of the flash
intensity compensation knob, at ±4 levels.
5.2.2 Start-up mode
In this tab, you may set the “photography mode set-
tings button” operation regarding the photography
mode at the time of start-up.
Main Capture Viewer Extension Maintenance
Start up
Image Quarity
Flash Intensity
Select priority capture mode when you
pushed caputure mode button after the
system starts up for the first time.
Select the detault capture mode
whea the system starts up.
Start-up photography mode: The instrument is in
either mydriatic or non-
FAF/RF
MYD
Non-MYD
FAF
RF
Color
APPLY
CANCEL
OK
mydriatic photography
mode at start-up.
RF/FAF button: The instrument is in either Red Free
or FAF photography mode when the
“RF/FAF switching button” is pressed
for the first time after start-up.
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5 Setting
5.2.3 Image quality/color
This function is enabled while the connection configuration is in “Stand-alone” or “Network connection.”
¿
In “VK connection”, the image quality and color settings for the photographed images are configured
in the VK series, which allows more detailed settings. To achieve images that are close to what you
want, using the instrument in VK connection is recommended.
Image quality/color:
You may adjust the quality and color of the photographed images in color
(mydriatic color and non-mydriatic color) photography.
Size and compression rate: You may set the size and compression rate of the photographed images.
A common size and compression rate settings are used for color photogra-
phy, Red Free photography, and FAF photography.
A separate set of settings are available for Fluorescence angiography.
Main Capture Viewer Extension Maintenance
Start up
Image Quarity
Flash Intensity
Color/RF/FAF
FA
Size
S
Hue(Color)
Size
S
Compression
Compression
Basic
Basic
APPLY
CANCEL
OK
M
L
Normal
-3
M
L
Normal
Fine
Fine
S Basic : 310KB
S Basic : 90KB
5.3 Viewer
5.3.1 Preview
You may set the length of time during which preview
is displayed on the LCD monitor immediately after
photographing when the instrument is in Stand-alone
or Network connection.
A set of settings for color, Red Free, and FAF photog-
raphy and another set for Fluorescence angiography
are available.
Main Capture Viewer Extension Maintenance
Print
Preview
Set the image preview time.
Available Range: 0,0.5,1～10 second
Color/RF/FAF
FA
5
1
APPLY
CANCEL
OK
5.3.2 Print
When Stand-alone is selected for the connection con-
figuration, you may print photographed images using
a printer connected to this instrument.
You may set whether photographing conditions are
printed in the margin.
Main Capture Viewer Extension Maintenance
Print
Preview
Select the items to be printed on the image.
Count
Flash intensity
Camera Sensitivity
Fixation
APPLY
CANCEL
OK
Items that may be set: number of images (Image No.
within an ID/total number of
Angle
L / R
images within an ID), flash in-
tensity (W), field angle, right or
ID
Date . Time
left eye, ID, photographed date
and time, internal fixation target
42
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5 Setting
5.4 Advanced functions
5.4.1 Internal fixation target
In this tab, you may configure the internal fixation target settings regarding “Peripheral”.
You may set the lighting sequence of the fixation targets to be lit and whether the sequence for the right
eye should be mirrored for the left eye.
─
─
Setting the photographing sequence
The lighting sequence is specified by setting the parts
to be photographed in the right eye.
Main Capture Viewer Extension Maintenance
Int Fix Custom FA Filter Blue/Brown FAF Obsr
(Left eye)
Present order(Right eye)
A: Current sequence in the right eye
B: Current sequence in the left eye
C: Numerical pad for entering a new sequence
D: Mirror button
Select the order for the right(R).
8
8
9
7
9
7
*
*
*
*
*
*
*
*
*
6
5
4 6
5
2
4
APPLY
CANCEL
OK
3
3
1
1
2
The numbers shown in “C: Numerical pad for enter-
ing a new sequence” signifies the parts to be pho-
tographed. Press the numbers in the sequence you
want to register a new photographing sequence. You
may enter any number of digits up to nine. When you
have entered the sequence, press “OK”. The new se-
quences will be reflected in A and B.
Mirror Setting
OFF
Set
Reset
A
D
B
C
─
─
Setting the mirror function
When the “mirror button (D)” is pressed, the sequence entered for the left eye will be mirrored for the
right eye photography.
When the “mirror button (D)” is not pressed, exactly the same sequence entered for the left eye will be
copied for the right eye photography.
5.4.2
Customize button
“Customize buttons” allow you to easily switch to a
preset combination of camera sensitivity, aperture
size, and reference flash intensity.
Main Capture Viewer Extension Maintenance
Int Fix Custom FA Filter Blue/Brown FAF Obsv
Custom1 Custom2 Custom3
Sensitivity
Flash Intensity
Iris
Standard
Large
In this menu, you may specify a separate set of set-
tings for each customize button.
Press a button number for which you want to set and
press the items you want to specify. If the button
looks “pressed down”, it is selected.
x1
x1
APPLY
CANCEL
OK
x2
x4
x1/2
x1/4
※‘Large’ setting is enable when the capture mode is FA and FAF.
※”Large” setting is that the optical system become the brightness of half
apperture (about 1.5 times).
Press “APPLY button” or “OK button” to store the set-
tings in memory.
43
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5 Setting
Items to set
Camera sensitivity : photography sensitivity of the camera. X1: Standard, X2: two fold, X4: four fold
As the setting is changed from X1 to X4, photography with low flash intensity be-
comes possible, but the image quality is compromised.
Aperture size
Standard
Large
: the size of the camera aperture.
: When the customize buttons is pressed, the aperture remains the standard size.
: When the customize buttons is pressed, the aperture is switched to a size larger
than the standard aperture. When the photography mode is in non-mydriatic, myd-
riatic color, or Red Free, however, the aperture size remains in the standard size.
Flash intensity
: Reference flash intensity.
: Remains in the standard setting.
: 1/2 of the standard setting.
: 1/4 of the standard setting.
X1
X1/2
X1/4
Examples of customize buttons (target use of the factory default settings)
Settings of each button and its effects and target use are shown below.
Camera
sensitivity
Flash
intensity
Button
Aperture
Effect and target use
Relatively bright-color images are achieved without
increasing glaring for patients. The image quality is
not overly compromised.
Custom 1
×2
Standard
×1
Very bright-color images are achieved without
increasing the glaring for patients, but the image
quality is compromised and a flare increases. This
setting is effective when the flash intensity is insuf-
ficient during fluorescence photography.
Images as bright as the standard mode are
achieved while reducing glaring for patients. The im-
age quality is compromised. This setting is effective
when you want to separately photograph images in
the low flash intensity.
Large aper-
ture
Custom 2
Custom 3
×4
×4
×1
Standard
×1/4
5.4.3 FA filter
With the standard setting, when FA photography
mode is selected, the exciter filter is inserted in the
light path; when the filter button is pressed, the barrier
filter is inserted. The setting is “After” as the factory
default.
Main Capture Viewer Extension Maintenance
Int Fix Custom FA Filter Blue/Brown FAF Obsv
Select the timing to insert the Barrier Filter (First or Next).
Next
APPLY
If you want to insert the barrier filter first and then ex-
citer filter as the FA button is pressed, select “Before”
to change the setting.
First
CANCEL
OK
44
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5 Setting
5.4.4 Blue/Brown
You may select whether “Blue” or “Brown” is enabled
at the time of start-up.
Main Capture Viewer Extension Maintenance
Int Fix Custom FA Filter Blue/Brown FAF Obsv
Set the initial setting (Blue or Brown).
Brown
APPLY
Blue
CANCEL
OK
5.4.5 FAF observation
The FAF observation mode, which is usually used for
the LCD monitoring of non-mydriatic state, also al-
lows observation of mydriatic state through the optical
viewfinder (eyepiece).
Main Capture Viewer Extension Maintenance
Int Fix Custom FA Filter Blue/Brown FAF Observe
Select Observation method.
Finder
This function may be set when you purchase and ap-
ply the FAF options.
APPLY
Monitor
CANCEL
OK
45
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5 Setting
5.5 Maintenance
5.5.1 Making a backup copy of compact flash memory card
You may make a backup copy of the data saved in
the compact flash memory card.
Main Capture Viewer Extension Maintenance
BackUp Format Version Password
Backup at CF card
APPLY
CANCEL
OK
※Connect the USB memory for backup.
If you connected more then two, copy it the first
connected USBmemory.
Notice
¿
When more than two backup media are connected, the one connected to the instrument first pre-
cedes the other.
¿
This function is enabled while the connection configuration is in “Stand-alone” or “Network connec-
tion.”
5.5.2 Formatting a compact flash memory card
In this tab, you may format a compact flash memory
card connected to the instrument.
Main Capture Viewer Extension Maintenance
BackUp Format Version Password
¿
This function is enabled while the connection con-
figuration is in “Stand-alone” or “Network connec-
tion.”
Format at CF card
APPLY
CANCEL
OK
If a password is set according to “5.5.4 Setting a
password”, you will be asked to enter the password
5.5.3 Version information
This tab shows the instrument's serial number and the versions of applications installed.
46
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5 Setting
5.5.4 Setting a password
You may set so that a password is required when
making a backup copy or formatting a compact flash
memory card.
Select “Password” tab.5.5.4_1
Press “Set a password” button.
5.5.4_1
The window shown in 5.5.4_2 appears.
Enter a password in the “New Password” field and
press “OK” next to it.
Enter the same password for confirmation in the “New
Password (Again)” field and press “OK” next to it.
If the confirmation password is entered correctly, the
new password is set.
5.5.4_2
Once the password is set, the window shown in
5.5.4_3 appears whenever the “Backup tab” or the
“Format” tab is pressed. The backup and formatting
functions are enabled only when the correct password
is entered.
5.5.4_3
47
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6 Troubleshooting
This section describes troubleshooting procedures to solve problems you may encounter. Look for the
applicable symptom from those shown in the following list and apply the applicable remedy. When the described
remedy did not eliminate the symptom or you encountered a symptom that is not listed, please contact Kowa or
your Kowa dealer.
Abnormal performance of the instrument
Symptom
What to check · State of equipment
Non- mydriatic mode is enabled.
LCD monitoring mode is enabled.
Remedy
Change to mydriatic mode.
Change to viewfinder observation.
Turn the observation light intensity
control knob to the 10 o'clock posi-
tion.
Observation light intensity control
knob is in the minimum position.
The observation illumination
lamp does not illuminate.
Press any button on the operation
panel.
It is in the power saving mode.
Is the illumination lamp properly at- Review if the illumination lamp is
tached?
attached properly.
Replace the illumination lamp. See
7.4.1.
The illumination lamp is burned out.
Compact flash memory card is not Insert the compact flash memory
inserted (in stand- alone).
card.
The shutter button cannot be
pressed.
The cable is pulled out (inVK con-
nection).
Connect the cable.
Enable capture mode.
Viewer mode is enabled.
Review the attachment of the flash
lamp.
Is the flash lamp properly attached?
The flash lamp is white and cloudy.
The photography flash lamp
does not illuminate.
Replace the flash lamp. See 7.4.2.
Is mydriatic color mode/ RF mode/
FA mode/ finder observation mode
for FAF enabled?
Enable non-mydriatic mode or
LCD monitoring mode.
Turn the observation light intensity
control knob to the 10 o'clock posi-
tion.
Is observation light intensity control
knob at the minimum position?
The observation image is not
displayed on the LCD monitor.
Wait until boot-up completes. (It
takes about 40 seconds from turn-
ing on the power.)
Is it soon after the power is turned
on?
Press the button on the operation
panel.
It is in power saving mode.
The error message EPC02 was dis-
played.
Turn off the power and stop using.
Press a button on the panel.
Nothing is displayed on the
LCD monitor.
Is it in the power saving mode?
Many functions in Viewer mode is
disabled during “VK connection”
and “Network connection”.
The system configuration is not
“Stand-alone”.
Operation from the LCD monitor
is disabled.
The error message EPC09 is dis-
played.
Turn off the power and stop using.
48
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6 Troubleshooting
Abnormal performance of the instrument
Symptom
What to check · State of equipment
Remedy
The button different from the
pressed button reacts during It is out of calibration.
LCD monitor operation.
Calibration must be performed.
You cannot observe from the view-
finder in non-mydriatic mode.
Non-mydriatic mode is enabled.
You see nothing when you look
into the viewfinder.
Press the LCD monitoring button
to change to the viewfinder moni-
toring mode.
LCD monitoring mode is enabled.
Alignment of the retinal camera is not
correctly adjusted.
Align the retinal camera correctly.
Turn on the focus dot switch or the
working dot switch.
The ON/OFF switch is off.
Focus dots and working dots are
not displayed when the diopter
compensation lens is inserted.
The focus dot and the working
dot are not displayed.
The diopter compensation button is
turned to “+” or “ ”.
When the retinal image is bright,
Is illumination light for monitoring too focus dots and working dots may
bright?
be lost. Decrease the amount of
illumination light for monitoring.
The external fixation target and
the internal fixation target do not
illuminate at the same time. Select
the external fixation target at the
fixation target selection button.
Is internal fixation target enabled?
It is in the power saving mode.
The external fixation target
does not illuminate.
Press a button on the operation
panel to cancel the power saving
mode.
Is alarm sound of the timer turned Turn on the alarm sound of the
The alarm does not sound.
off?
timer in the setting. See 5.1.4.
All LED on the operation panel
turn on and off.
EHD07 or EHD08 is displayed.
Turn off the power and stop using.
49
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6 Troubleshooting
Abnormality in captured images
Images show white shadow spots Is there dust on the objective Clean the objective lens. See
at the same places.
lens?
7.3.1.
Is the objective lens contaminated Clean the objective lens. See
by tears etc.? 7.3.1.
Are the eyelashes of the patient in Make sure that the eyelashes do
front of the eye?
not come in front of the pupil.
Image’s peripheral area becomes
darkened.
Is the digital camera located too
far from the patient’s eye?
Align the retinal camera correctly.
Image’s peripheral area becomes
whitened.
Is the digital camera located too
close to the patient’s eye?
Align the retinal camera correctly.
Image is locally too dark.
Try small pupil mode. If it is less
Is the pupil of the patient’s eye than the pupil diameter guideline,
sufficiently dilated?
the center of the images becomes
dark.
Images show black shadow spots
at the same places.
It is necessary to clean the inside
of the camera. Contact Kowa or
your Kowa dealer.
50
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6 Troubleshooting
Error message
Error code
EPC01
Description
Remedy
Failure of the camera for image capturing
Failure of the camera for observation
Failure of the CF memory card
Turn off the power and stop using.
Turn off the power and stop using.
Replace the CF memory card.
Insert the CF memory card.
EPC02
EPC03
EPC04
The CF memory card is not inserted.
Insufficient capacity of the CF memory
card
EPC05
EPC06
EPC07
Replace or format the CF memory card.
Replace the CF memory card.
Failure of the CF memory card
Abnormality of the internal circuit (commu-
nication)
Turn off the power and stop using.
EPC08
EPC09
EPR01
Abnormality of the internal circuit (battery) Turn off the power and stop using.
Abnormality of the touch panel
The printer is not connected.
Turn off the power and stop using.
Connect the specified printer.
Replenish the printer paper. (Replenish according
to the manual of the printer.)
EPR02
EPR03
EPE01
Out of paper
Out of ink
Replenish the printer ink. (Replenish according to
the manual of the printer.)
Connection of any uncertain peripheral Do not connect equipment which is not specified
equipment
by Kowa.
EPE02
EHW01
EHD07
Insufficient capacity of backup memory
Failure of an optical unit (ring slit)
Abnormality of the internal circuit
Replace the backup memory.
Turn off the power and stop using.
Turn off the power and stop using.
Turn off the power and provide the power supply
for the sole use of this instrument. If this error oc-
curs after restart, stop using.
EHD08
EHD09
Abnormality of the internal circuit
Abnormality in communication with out-
side PC
Reconfirm the connection of the system.
51
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7 Maintenance and inspection
The retinal camera is a precision instrument and daily maintenance and inspection may affect the imaging
results. Please read this section carefully in order to use this instrument correctly and safely.
7.1 Daily maintenance
1) Close the application of the main unit when the photographing is finished, and make sure to turn off the
power switch. Place the lens cap on the objective lens, set the panning lock and the optical head base
lock, and place the dust cover over the instrument.
2) Check that no dust, debris, finger print, or body fluid is found on the objective lens. Confirm that the ob-
jective lens is clean before you use the instrument. Confirmation of dirt is easier in mydriatic color mode
with observation light intensity adjusted to visible light.
3) Clean the dirt of this instrument according to routine cleaning method.
4) If it is not used for a long period, unplug the power code for safety. When the instrument has not been
used for a long period of time, confirm if any errors are in each setting of this instrument.
Important
◇ If the retinal camera in a cool room is suddenly moved to a warmer room, or if the room in which the
instrument is located is heated rapidly, the objective lens and/or internal lens may be fogged. Wait for
a while until the lens is clearly defogged before starting photographing. Or, images may be out of fo-
cus.
◇ When condensation occurs repeatedly, lenses may get moldy. When such a case has occurred to
you, contact Kowa or your Kowa dealer.
52
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7 Maintenance and inspection
7.2 Daily inspection
Inspect this instrument in accordance with “KOWA VX-20 daily inspection table” below.
KOWA VX-20 daily inspection table
Inspection items
Plates and labels
Procedure
Acceptability criteria
Visually verify that plates and la-
bels are readily readable and not Plates and labels are readable
contaminated.
Visually verify that exterior compo-
There is no flaw, crack, deforma-
nents have no flaw, crack, defor-
tion or rust.
Exterior
mation or rust.
Power supply cable
Cable between Power supply unit
and optical component
Cable between the panel and the
panning arm
Visually verify that there is no flaw
There is no flaw or damage.
or damage.
Cable between the panning arm
and optical component
Cable between the panning arm
and LCD
Visually verify that there is no flaw
There is no flaw or damage.
or damage.
USB cable 1 (only during operation)
Visually verify that the connector
The connector is plugged.
is not unplugged.
Visually verify that there is no flaw
There is no flaw or damage.
or damage.
K9L-SC56B (only during opera-
tion)
Visually verify that the connector
The connector is plugged.
is not unplugged.
Visually verify that there is no flaw
There is no flaw or damage.
or damage.
K9L-SC56C (only during opera-
tion)
Visually verify that the connector
The connector is plugged.
is not unplugged.
Visually verify that the power sup- The power supply cable is indi-
ply cable is individually connected vidually connected to commercial
Power supply connection
to commercial power supply.
power supply.
Start this instrument.
Select mydriatic mode for the
photography mode, and turn the
Observation light intensity control
knob to 10 o'clock position.
Confirm that the objective lens cap Observation light illuminates.
is removed.
Observation illumination lamp
Place a hand in front of the objec-
tive lens and visually verify that
the observation light illuminates
the hand.
53
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7 Maintenance and inspection
(Perform the following after in-
specting the observation illumina-
tion lamp.)
Turn the observation light intensity
control knob to maximum, and No dust, debris, teardrop must be
visually verify the objective lens found.
from oblique angle.
Objective lens
Return the observation light inten-
sity control knob to the 10 o'clock
position after the confirmation.
(Perform the following after in-
specting the objective lens.)
Make the instrument ready for
photography according to the sys-
tem configuration.
Place a hand in front of the objec-
Flash light is emitted.
The image is saved.
Internal circuit
tive lens, and push the shutter but-
ton to verify that the flash light is
emitted and the image is saved.
7.3 Daily cleaning
7.3.1 Cleaning the objective lens
Images may show white shadow spots at the same places if the objective lens is contaminated with fin-
gerprints, etc. Clean the objective lens according to the procedure below.
1) Turn on the power.
2) Set the photography mode to “mydriatic color” after the instrument has started up.
3) Set the observation illumination light intensity to maximum.
4) Blow off debris or dust using the attached blower.
5) When it is not cleaned by the procedure 4), moisten soft cloth or cleaning paper with cleaning solution
made from ethyl alcohol and ether (1:1) and lightly wipe the lens starting from its center in a circular
motion. Repeat this step several times.
6) If any soil is left out after cleaning according to the step 5), gently wipe off the soiled area with a cot-
ton swab soaked with a little amount of water. If you have done this procedure, repeat the step 4).
7) Should you have any soil that cannot be removed by the steps above, contact Kowa or your Kowa
dealer.
Point
Change the cleaning paper or the soft cloth to new one every time you wipe.
;
Important
◇ Cleaning the lens without removing dusts and debris when wiping may scratch the lens surface.
◇ Do not use chamois leather, silicon cloth etc.
◇ Carefully store and handle the flammable and combustible cleaning solution.
54
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7 Maintenance and inspection
7.3.2 Cleaning and disinfection of the parts where patients contact the instrument (the
forehead base, the chin rest, and the grip (optional accessory))
Wipe the forehead rest (including K9L-HR56 (optional accessory)), head bands, the chin rest (in case not
using the chin paper), and the grip (K9L-GR56 (optional accessory)) with rubbing alcohol as soon as a
patient completes the examination.
7.3.3 Cleaning the exterior and the LCD monitor
When exterior of this instrument other than described above is dirty, follow the steps below to clean it.
1) Wipe the surface with firmly squeezed dampened soft cloth.
2) Wipe off the obstinate dirt with soft cloth, after dampening it in water or lukewarm water with diluted
small amount of neutral detergent and firmly squeezing it.
¿
Do not use solvents such as thinner and benzene for cleaning the exterior.
When the LCD monitor is dirty, clean according to the following steps.
1) Wipe the LCD monitor with soft cloth, after dampening in water and firmly squeezing it
2) Lightly wipe the LCD monitor with dry and soft cloth before the surface becomes completely dry.
¿
Do not wipe all the surface at a time, and finish area by area
Water drops leave spots when they are dried.
¿
Do not use any liquid other than water or rubbing alcohol for cleaning the LCD monitor..
7.4 Replacement of consumables
7.4.1 Replacement of observation illumination lamps
1) Turn off the power switch and unplug the power plug from the electrical outlet.
Wait for about 30 minutes and cool the lamp unit.
2) Loosen the lamp cover screws with a flat-head screwdriver, and
remove the lamp cover.
Hold a hand toward the internal black lamp cover, and touch it if
you do not feel the heat to confirm it is cool enough.
3) Loosen the inside lamp cover screws with a flat-head screwdriver.
Loosen the 3 screws bit by bit, and remove the lamp cover when
all screws are loosened. The observation illumination lamp comes
out with the cover from the lamp house.
4) Hold a hand toward the illumination lamp, and lightly touch it if you do not feel the heat to confirm it is
cool enough.
55
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7 Maintenance and inspection
5) Hold the shade of the illumination lamp, pull the flat spring which
fixes the lamp cover, and remove the lamp with the lamp socket
from the lamp cover.
6) Hold the shade of the illumination lamp and pull it straight and
slowly from the lamp socket
7) Attach a new illumination lamp to the lamp socket. Push tightly until the bottom of the lamp and the
socket surface adheres.
8) Fix the lamp to the cover so that the hollow of the illumination lamp pedestal and the projection of the
lamp and the shade are not misaligned.
9) Pay attention not to place the socket cable forward of the lamp shade when attaching the cover. Fix
the cover by fastening the 3 screws successively with a flat-head screwdriver. Make sure there is no
gap between the lamp house and the cover.
10)
Insert the light source cover to the exterior of the optical head, and fix it with screws.
Important
◇ Do not turn the illumination lamp.
◇ Push the illumination lamp to the end of the socket.
◇ When attaching the lamp cover, handle it so that the cable of the socket is not get caught or
stressed.
◇ If the pedestal and the shade and the projection are misaligned, the lamp may be damaged.
◇ If you touch the lamp in the shade directly, it may shorten the life of the lamp.
◇ Pay attention not to drop the lamp or bump against the optical head.
When replacing with new flash lamp and observation
lamp, be sure to turn OFF the power switch before un-
plugging from the power outlet. Otherwise, there is a fear
of electrical shock.
Warning
Warning
High-voltage
Unplug
Do not replace the flash lamp tube or observation light
bulb immediately after use.
When replacing the flash tube or observation light bulb,
be sure to turn OFF the main power switch and unplug it
from the power outlet, and wait for 30 minutes or more.
Do not touch the flash lamp tube with your bare hands.
Otherwise, the lamp may have a lower quantity of light
and a shorter useful life.
Caution
Warning
High-temperature
Prohibitory
56
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7 Maintenance and inspection
7.4.2 Replacement of the lamp for photography
1) Turn off the power switch and unplug the power plug from the electrical outlet.
Wait for about 30 minutes and cool the lamp unit.
2) Remove the internal black lamp cover when replacing the illumina-
tion lamp.
3) Insert the pulling tool attached to the replacement lamp for pho-
tography into the grooves at the top and the bottom of the lamp for
photography in the lamp house.
4) With the pulling tool inserted at the socket of the
lamp for photography, pull it straight and slowly.
5) Hold the replacement lamp for photography with
the pulling tool, and insert it into the lamp house
straightly.
6) Take out the pulling tool from the lamp house.
7) Push the peripheral part of the lamp socket using the pulling tool or the protection cover of the re-
placement lamp for photography until the bottom of the lamp socket and the lamp house adhere to
each other.
8) Attach the inside lamp cover and the light source cover as you replaced the illumination lamp.
Important
◇ Do not turn the lamp for photography.
◇ Do not replace the lamp for photography directly holding it with hands. It may cause electrical
shock or damage.
◇ Pay attention not to drop the lamp or bump against the optical head.
When replacing with new flash lamp and observation
lamp, be sure to turn OFF the power switch before un-
plugging from the power outlet. Otherwise, there is a fear
of electrical shock.
Warning
Warning
High-voltage
Unplug
57
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7 Maintenance and inspection
Do not replace the flash lamp tube or observation light
bulb immediately after use.
When replacing the flash tube or observation light bulb,
be sure to turn OFF the main power switch and unplug it
from the power outlet, and wait for 30 minutes or more.
Do not touch the flash lamp tube with your bare hands.
Otherwise, the lamp may have a lower quantity of light
and a shorter useful life.
Caution
Warning
High-temperature
Prohibitory
7.4.3 Fuse replacement
1) Turn off the power switch and unplug the power plug from the electrical outlet.
2) Turn the fuse holder at the power supply counterclockwise with a flat-head screwdriver.
3) When the head of the old fuse comes out, hold it with a hand to pull it out.
4) Replace the fuse and place it in the fuse holder.
5) Press down the fuse holder with a flat-head screwdriver and turn the screwdriver clockwise.
When replacing with new fuses, turn OFF the power
switch and unplug from the power outlet. Otherwise,
there is a fear of electrical shock.
Use accessory or designated fuses. If other than
designated ones should be used, there may occur
failure or a fire on the equipment.
Warning
Warning
High-voltage
Unplug
The fuse differs according to the voltage which is used. Make sure to
use a correct fuse when replacing one.
Warning
Obligatory
7.4.4 List of consumables
Following is the list of consumables used on this instrument. Please contact Kowa or your Kowa dealer
for purchase or any inquiry. It is recommended that you always stock the illumination lamp and the fuse
for replacement.
Part name
Flash lamp
Purchase order number
K9L56 FU3A
Illumination lamp K9L52 A26
Fuse
0218010.MXP
58
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7 Maintenance and inspection
7.5 Regular inspection
In order to use this instrument safely over its useful life, we recommend you to have it inspected annually.
1. Records of each setting
2. External components and their installation
3. Optical components
4. Operations and functions of the components
5. Switching operations of photography mode
6. Observation image using Standard Model Eye (OD)
7. Photography using Standard Model Eye (OD)
8. Photography light intensity
9. Electrical safety test
Contact Kowa or your Kowa dealer for specific detail and cost of inspections.
59
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8 Specifications
Mydriatic: 50º/30º
Field angle
Non- mydriatic: 45º/27º
39mm (between the patient’s eye and the front of the ob-
jective lens)
Working distance
0
─12D - +13D
Diopter compensation range of patient’s eye
─
─10D - ─32D
+
+10D - +35D
Focusing
Split luminous bars coincidence (with ON/OFF function)
Luminous dots indication (with ON/OFF function)
Working distance adjustment
Optical viewfinder (eyepiece) diopter
compensation range
─8D - +5D
Observation illumination light
Photography flash lamp
Halogen lamp
Xenon flash lamp
Lengthwise (coarse motion) --- 90mm
(fine motion) --- approximately 17.5mm
Horizontal optical head base moving distance
Crosswise (coarse motion) --- 140mm
(fine motion) --- approximately 17.5mm
Vertical optical head base moving distance
Tilting operation range
Rotating arm operation range
Power supply voltage
Power supply frequency
Power supply input
30mm
Elevation --- 11º, depression --- 15º
30° each for left and right
AC120V
50/60Hz
Normal: 250VA, Maximum: 1500VA
394mm (W) x 562mm(D) x 724mm(H)
39kg
Dimensions
Weight
Compliance standard
• IEC 60601-1:1988+A1:1991+A2:1995
• IEC 60601-1-2:2007
Safety standard and classification
• According to the type of protection against electric shock
(Class I device)
• According to the degree of protection against electric shock
(Type B applied part)
• According to the type of protection against ingress of water as detailed in the current edition of IEC60529.
(IPX0)
• According to the degree of safety of application in the presence of a flammable anaesthetic mixture with
air or with oxygen or nitrous oxide.
(Equipment not suitable for use in the presence of a flammable anesthetic mixture with air or with
oxygen or nitrous oxide)
• According to the mode of operation.
(continuous operation)
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9 Technical information
9.1 Folder structure and data format of the compact flash
memory card
Image files (JPEG) and photography condition files (XML) are generated and saved in each of ID folders.
File name
[ID]_[YYMMDD]_[HHMMSS]_KOWA_[Photography type]_[Photographed eye]_[Timer elapsed time].Jpg
[ID]_[YYMMDD]_[HHMMSS]_KOWA_ [Timer elapsed time].XML
ID:
Patient's ID
YYMMDD:
HHMMSS:
Photography type:
Date of photograph taken
Time of photograph taken
COLOR:
REDFREE:
FA:
Color photography
Red free photography
Fluorescent photography
AF:
Autoflorescent photography
Photographed eye: Right eye:
Left eye:
R
L
Timer elapsed time: Elapsed time on the timer at the time of FA photography 00MMSSmmm
01 or 02 is indicated if photography other than FA was performed.
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9 Technical information
The structure of the photography condition files is as shown below.
<?xml version=“1.0” encoding=“UTF-8”?>
<?xml-stylesheet type=“text/xsl” href=“Fundus_Stylesheet.xsl”?>
<Ophthalmology xmlns:xsi=“http://www.w3.org/2001/XMLSchema-instance”
xmlns:nsCommon=“http://www.joia.or.jp/standardized/namespaces/Common”
xmlns:nsFUNDUS=“http://www.joia.or.jp/standardized/namespaces/Fundus”
<nsCommon:Common>
<nsCommon:Company>KOWA</nsCommon:Company>
<nsCommon:ModelName>VX-20</nsCommon:ModelName>
<nsCommon:MachineNo> [11-digit serial number] </nsCommon:MachineNo>
<nsCommon:ROMVersion></nsCommon:ROMVersion>
<nsCommon:Version>1.0</nsCommon:Version>
<nsCommon:Date>YYYY-MM-DD</nsCommon:Date>
<nsCommon:Time>HH:MM:SS</nsCommon:Time>
<nsCommon:Patient>
<nsCommon:No.> [4-digit test number] </nsCommon:No.>
<nsCommon:ID> [Patient’s ID] </nsCommon:ID>
<nsCommon:FirstName> </nsCommon:FirstName>
<nsCommon:MiddleName></nsCommon:MiddleName>
<nsCommon:LastName></nsCommon:LastName>
<nsCommon:Sex></nsCommon:Sex>
<nsCommon:Age></nsCommon:Age>
<nsCommon:DOB></nsCommon:DOB>
<nsCommon:NameJ1></nsCommon:NameJ1>
<nsCommon:NameJ2></nsCommon:NameJ2>
</nsCommon:Patient>
<nsCommon:Operator>
<nsCommon:No.></nsCommon:No.>
<nsCommon:ID></nsCommon:ID>
</nsCommon:Operator>
<nsCommon:Parts> [2-digit maintenance code for Kowa] </nsCommon:Parts>
</nsCommon:Common>
<nsFUNDUS:Measure type=“FUNDUS”>
<nsFUNDUS:FUNDUS>
<nsFUNDUS:List No=“1”>
<nsFUNDUS:ImageType> [Photography type] </nsFUNDUS:ImageType>
<nsFUNDUS:AcquisitionDate> YYYY-MM-DD </nsFUNDUS:AcquisitionDate>
<nsFUNDUS:AcquisitionTime> HH:MM:SS </nsFUNDUS:AcquisitionTime>
<nsFUNDUS:Timer> [Timer elapsed time 00MMSSmmm] </nsFUNDUS:Timer>
<nsFUNDUS:HorizontalFieldOfView unit=“deg”> [Field angle] </nsFUNDUS:HorizontalFieldOfView>
<nsFUNDUS:ImageLaterality> [Photographed eye] </nsFUNDUS:ImageLaterality>
<nsFUNDUS:PixelSpacing unit=“mm”></nsFUNDUS:PixelSpacing>
<nsFUNDUS:FileName> [Image file name] </nsFUNDUS:FileName>
</nsFUNDUS:List>
<nsFUNDUS:FUNDUS>
<nsStatus:Status>
<nsStatus:ImageTypeEx>[Photography type extension]</nsStatus:ImageTypeEx>
<nsStatus:FlashIntensity>[Flash intensity]</nsStatus:FlashIntensity>
<nsStatus:ISOSensitivity>[Sensitivity]</nsStatus: ISOSensitivity >
<nsStatus:Apperture>[Aperture size]</nsStatus:Apperture>
<nsStatus:Fixation>[Fixation target position]</nsStatus:Fixation>
<nsStatus:Diopter>[Diopter compensation]</nsStatus:Diopter>
<nsStatus:Pupil>[Pupil diameter]</nsStatus:Pupil>
<nsStatus:ImageSize>[Image size]</nsStatus:ImageSize>
<nsStatus:ImageLevel>[Compression rate]</nsStatus:ImageLevel>
</nsStatus:Status>
</nsFUNDUS:Measure>
</Ophthalmology>
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9 Technical information
9.2 Number of photographs taken using the supplied memory
card
The number of photographs you may take using the supplied 2-GB memory card depends on the photogra-
phy mode as well as size and compression rate that are set according to 5.2.3. Image quality/color.
The table below shows approximate number of photographs that may be taken with each setting.
Number of photographs
Size
Compression rate
Other than FA
5800
FA
Basic
Normal
Fine
S
M
L
2200
1500
3400
1150
800
18500
9300
5350
Basic
Normal
Fine
Basic
Normal
Fine
2200
700
500
¿
Based on the number of photographs taken with a model eye. The file sizes of actual photographs
vary. Please note the above numbers are only approximate numbers.
9.3 File format and name of the files generated in the Network
connection setting
In the Network connection setting, image files (JPEG) and photography condition files (XML) are generated
and saved in a designated folder.
The rules on assigning a file name and the file structure of photography condition files are the same as those
of the compact flash memory card.
63
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10 Light Hazard (ISO 15004-2)
“Caution – The light emitted from this instrument is potentially hazardous. The longer the duration of exposure,
the greater the risk of ocular damage. Exposure to light form this instrument when operated at maximum inten-
sity will exceed the safety guideline after 1874 pulses for image capturing light, 206 min for illumination light,
30 min for working dots lights(visible), 7 hour for working dots light(IR), 43 hour for focus dots light(visible), 43
hour for focus dots light(IR), 7 hour for internal fixation light(red), 7 hour for internal fixation light(green), 440662
pulses for external fixation light(red), 536139 pulses for external fixation light(green).”
㻵㼙㼍㼓㼑㻌㼏㼍㼜㼠㼡㼞㼕㼚㼓㻌㼘㼕㼓㼔㼠
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64
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10 Light Hazard (ISO 15004-2)
㼃㼛㼞㼗㼕㼚㼓㻌㼐㼛㼠㼟㻌㼘㼕㼓㼔㼠㻔㼢㼕㼟㼕㼎㼘㼑㻕
㻜㻚㻜㻜㻢
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㻜㻚㻜㻜㻞
㻜㻚㻜㻜㻝
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㼃㼛㼞㼗㼕㼚㼓㻌㼐㼛㼠㼟㻌㼘㼕㼓㼔㼠㻔㻵㻾㻕
㻜㻚㻜㻝㻢
㻜㻚㻜㻝㻠
㻜㻚㻜㻝㻞
㻜㻚㻜㻝
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㻲㼛㼏㼡㼟㻌㼐㼛㼠㼟㻌㼘㼕㼓㼔㼠㻔㼢㼕㼟㼕㼎㼘㼑㻕
㻜㻚㻜㻝㻠
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㻜㻚㻜㻜㻢
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㻜㻚㻜㻜㻞
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㼣㼍㼢㼑㼘㼑㼚㼓㼠㼔㻔㼚㼙㻕
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10 Light Hazard (ISO 15004-2)
㻲㼛㼏㼡㼟㻌㼐㼛㼠㼟㻌㼘㼕㼓㼔㼠㻔㻵㻾㻕
㻜㻚㻜㻜㻡
㻜㻚㻜㻜㻠㻡
㻜㻚㻜㻜㻠
㻜㻚㻜㻜㻟㻡
㻜㻚㻜㻜㻟
㻜㻚㻜㻜㻞㻡
㻜㻚㻜㻜㻞
㻜㻚㻜㻜㻝㻡
㻜㻚㻜㻜㻝
㻜㻚㻜㻜㻜㻡
㻜
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㻡㻜㻜
㻢㻜㻜
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㻵㼚㼠㼑㼞㼚㼍㼘㻌㼒㼕㼤㼍㼠㼕㼛㼚㻌㼘㼕㼓㼔㼠㻔㼞㼑㼐㻕
㻜㻚㻜㻟
㻜㻚㻜㻞㻡
㻜㻚㻜㻞
㻜㻚㻜㻝㻡
㻜㻚㻜㻝
㻜㻚㻜㻜㻡
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10 Light Hazard (ISO 15004-2)
㻱㼤㼠㼑㼞㼚㼍㼘㻌㼒㼕㼤㼍㼠㼕㼛㼚㻌㼘㼕㼓㼔㼠㻔㼞㼑㼐㻕
㻜㻚㻜㻞
㻜㻚㻜㻝㻤
㻜㻚㻜㻝㻢
㻜㻚㻜㻝㻠
㻜㻚㻜㻝㻞
㻜㻚㻜㻝
㻜㻚㻜㻜㻤
㻜㻚㻜㻜㻢
㻜㻚㻜㻜㻠
㻜㻚㻜㻜㻞
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㻱㼤㼠㼑㼞㼚㼍㼘㻌㼒㼕㼤㼍㼠㼕㼛㼚㻌㼘㼕㼓㼔㼠㻔㼓㼞㼑㼑㼚㻕
㻜㻚㻜㻞㻡
㻜㻚㻜㻞
㻜㻚㻜㻝㻡
㻜㻚㻜㻝
㻜㻚㻜㻜㻡
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㻠㻜㻜
㻡㻜㻜
㻢㻜㻜
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11 Electromagnetic compatibility (IEC60601-1-2)
This instrument is a medical electrical instrument. Medical electrical instruments are requireed special
attention to the electromagnetic compatibility (EMC). The following section describes the EMC and precautions
regarding 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 IEC60601-1-2.)
1. Please note that portable- or mobile-type radio frequency communication devices (RF communications
instrument) may adversely affect this instrument resulting in malfunctioning.
2. The electromagnetic compatibility (EMC) of this instrument was tested with the options and accessories
shown below.
Since using an option or accessory other than those specified may cause malfunctioning of this
instrument due to interferences of other device or cause malfunctioning of other device, use only the
options or accessories specified for this instrument.
● Power cable: 3 m maximum
● USB cable (Type A
● USB cable (TypeA
● USB cable (TypeA
─
─
─
B): 5 m maximum
Mini-B): 3 m maximum
Mini-B): 5 m maximum
● LAN cable: 5 m maximum
● Coaxial cable: 5 m maximum
● Personal computer: CE Marking and VCCI approved PC
3. This instrument is not designed such that it can be used adjacent to other instrument or placing one on
top of another. Therefore, do not apply such use. Nevertheless, if such use is inevitable, it is necessary to
monitor constantly if the instrument is functioning normally after such use has been adopted.
4. We specified the functions listed in the table blow as the basic performance of this instrument to
determine EMC of this instrument.
Function
Essential performance
Adjusting observation light intensity
Adjusting photography light intensity
Emission of photography light
Chin rest vertical movement
Field angle selection
Photography functions
Switching of ring slit
Functions concerning operation
of the instrument
Switching of diopter compensation
Switching of optical viewfinder (eyepiece),
switching of black and white camera
Captured image output
Touch panel input
LCD monitor display functions
LCD monitor display
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11 Electromagnetic compatibility (IEC60601-1-2)
[Compliance verification and guidance]
Guidance and manufacturer’s declaration - electromagnetic emissions
KOWA VX-20 is intended for use in the electromagnetic environment specified below.
The customer or the user of KOWA VX-20 should assure that it is used in such an environment.
Emissions test
RF emissions
Compliance
Group 1
Electromagnetic environment - guidance
KOWA VX-20 uses RF energy only for its internal function. Therefore, its RF
emissions are very low and are not likely to cause any interference in nearby
electronic instrument.
CISPR 11
EN 55011
RF emissions
CISPR 11
EN 55011
Class B
Class A
Harmonic emissions
IEC 61000-3-2
KOWA VX-20 is acceptable in all types of facilities without any limitation to
the electrical supply network connected to KOWA VX-20.
EN 61000-3-2
Voltage fluctuations/
flicker emissions
IEC 61000-3-3
Complies
EN 61000-3-3
Guidance and manufacturer’s declaration - electromagnetic immunity
KOWA VX-20 is intended for use in the electromagnetic environment specified below.
The customer or the user of tKOWA VX-20 should assure that it is used in such an environment.
Immunity test
IEC60601 test level
±6kV contact
±8kV air
Compliance level
±6kV contact
±8kV air
Electromagnetic environment - guidance
Electrostatic
Floors should be wood, concrete or ceramic tile.
If floors are covered with synthetic material, the
relative humidity should be at least 30%.
discharge(ESD)
IEC 61000-4-2
EN 61000-4-2
Electrical fast
transient/burst
IEC 61000-4-4
EN 61000-4-4
±2kV for power
supply lines
±1kV for
±2kV for power
supply lines
±1kV for
Mains power quality should be that of a typical
commercial or hospital environment.
input/output lines
input/output lines
±1kV
differential mode
±2kV
±1kV
differential mode
±2kV
Surge
IEC 61000-4-5
EN 61000-4-5
Mains power quality should be that of a typical
commercial or hospital environment.
common mode
common mode
<5% UT
<5% UT
(>95% dip in UT)
for 0.5 cycle
(>95% dip in UT)
for 0.5 cycle
Voltage dips, short
interruptions and
voltage variations
on power supply
input lines
40% UT
40% UT
Mains power quality should be that of a typical
commercial or hospital environment. If the user of
KOWA VX-20 requires continued operation during
power mains interruptions, it is recommended that
KOWA VX-20 be powered from an uninterruptible
power supply.
(60% dip in UT)
for 5 cycles
(60% dip in UT)
for 5 cycle
70% UT
70% UT
(30% dip in UT)
for 25 cycles
(30% dip in UT)
for 25 cycle
IEC 61000-4-11
EN 61000-4-11
<5% UT
<5% UT
(>95% dip in UT)
for 5 sec
(>95% dip in UT)
for 5 sec
Power frequency
(50/60Hz)
magnetic field
IEC 61000-4-8
EN 61000-4-8
Power frequency magnetic fields should be at lev-
els characteristic of a typical location in a typical
commercial or hospital environment.
3 A/m
3 A/m
NOTE UT is the a.c. mains voltage prior to application of the test level.
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11 Electromagnetic compatibility (IEC60601-1-2)
Guidance and manufacturer’s declaration - electromagnetic immunity
KOWA VX-20 is intended for use in the electromagnetic environment specified below.
The customer or the user of KOWA VX-20 should assure that it is used in such an environment.
Immunity test
IEC 60601 test level Compliance level
Electromagnetic environment– guidance
Portable and mobile RF communications
instrument should be used no closer to any
part of KOWA VX-20, including cables, than
the recommended separation distance cal-
culated from the equation applicable to the
frequency of the transmitter.
Recommended separation distance
Conducted RF
IEC 61000-4-6
EN 61000-4-6
3 Vrms
3 Vrms
3 V/m
d=1.2
P
150 kHz to 80 MHz
d=1.2 P 80 MHz to 800 MHz
d=2.3 P 800 MHz to 2.5 GHz
Radiated RF
IEC 61000-4-3
EN 61000-4-3
3 V/m
80 MHz to 2.5 GHz
where P is the maximum output power rat-
ing of the transmitter in watts (W) according
to the transmitter manufacturer and d is the
recommended separation distance in metres
(m).
Field strengths from fixed RF transmitters,
as determined by an electromagnetic site
a
survey , should be less than the compliance
b
level in each frequency range .
Interference may occur in the vicinity of in-
strument marked with the following symbol:
NOTE 1 At 80MHz and 800MHz, the higher frequency range applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from
structures, objects and people.
a
Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and land mobile radios,
amateur radio, AM and FM radio broadcast and TV broadcast cannot be predicted theoretically with accuracy. To assess the elec-
tromagnetic environment due to fixed RF transmitters, an electromagnetic site survey should be considered. If the measured field
strength in the location in which KOWA VX-20 is used exceeds the applicable RF compliance level above, KOWA VX-20 should
be observed to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as re-
configuring or relocating KOWA VX-20
b
Over the frequency range 150kHz to 80MHz, field strengths should be less than 3 V/m.
Recommended separation distances between
portable and mobile RF communications instrument and KOWA VX-20
KOWA VX-20 is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The
customer or the user of KOWA VX-20 can help prevent electromagnetic interference by maintaining a minimum distance
between portable and mobile RF communications instrument (transmitters) and KOWA VX-20 as recommended below,
according to the maximum output power of the communications instrument.
Separation distance according to frequency of transmitter
Rated maximum output
power of transmitter
W
m
150 kHz to 80 MHz
d=1.2
80 MHz to 800 MHz
800 MHz to 2.5 GHz
d=2.3
P
d=1.2
P
P
0.01
0.1
1
0.12
0.12
0.23
0.37
1.2
3.7
12
0.37
1.2
3.7
12
0.74
2.3
7.4
23
10
100
For transmitters rated at a maximum output power not listed above, the recommended separation distance d in metres (m)
can be estimated using the equation applicable to the frequency of the transmitter, where P is the maximum output power
rating of the transmitter in watts (W) according to the transmitter manufacturer.
NOTE 1 80MHz and 800MHz, the separation distance for the higher frequency range applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from
structures, objects and people.
70
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World Sales Headquarters
4-14, Nihonbashi-honcho 3-chome, Chuo-ku, Tokyo 103-8433 Japan
Phone : 81(3) 3279-7639
Facsimile : 81(3) 3279-7541
20001 So.Vermont Ave.Torrance, CA 90502, U.S.A.
Phone: 1(310)327-1913
Facsimile:1(310)327-4177
Kowa Company, Ltd. Hamamatsu Factory
3-1, Shinmiyakoda 1-chome, Kita-ku, Hamamatsu city, Shizuoka Pref., 431-2103 Japan
© 2011 Kowa Company, Ltd. All rights reserved.
K9L56 V1.0K 110629 MS
Printed on recycled paper.
Printed in Japan
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