Kowa VX-10a User manual

KOWA
INSTRUCTION MANUAL
FUNDUS CAMERA
KOWA VX-10aEU

INTRODUCTION
P0-1
INTRODUCTION
This manual provides a description of the operating procedures of KOWA along with important
precautions to be observed during its use. Please read this entire manual carefully to assure that the instrument
can demonstrate its full capabilities and be used effectively. After you have nished reading it, please keep it in an
easily accessible location near the instrument for future's reference.
Operational considerations for safety
This manual describes important precautions to be observed during its use to assure that the instrument can be
used safely without causing any damage to the human body and property of its purchaser and other persons. The
designations and their pictorial symbols have the following meanings. These should be fully comprehended before
reading the text of this manual.
■Meanings of markings
Warning
If the instrument should be operated wrongly, there may occur a danger of causing death or serious injury.
Caution
If the instrument should be operated wrongly, there may result an injury to the human body (not so serious as to
cause death though)*1or damage to property*2.
*1: An injury to the human body means any 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 the house and household goods as well as the 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 it's associated message on or near a pictorial symbol.
Graphical indication of mandatory action (obligatory item). What must always done is explicitly
and pictorially indicated by a picture or it's associated message on or near a pictorial symbol.
■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 the instruction manual.
• Any damage resulting from, for instance, malfunctioning of the instrument caused by a combination of
connected devices.

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P0-2
Warning
Unplug
If any abnormal smell or sound, or overheating or smoke should be detected, be sure to turn OFF
power supply immediately and then unplug it from the power outlet. If it should continue in use, a re
may break out on the instrument resulting in its malfunctioning.
Contact your Kowa dealer where you purchased it or your nearest repair shop for inspection.
Unplug Warning
High-voltage
When replacing the ash 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. Otherwise, there may occur electrical shock.
Unplug Warning
High-voltage
When replacing the fuse, be sure to turn OFF the main switch and unplug it from
the power outlet.
If the fuse holder cover is removed with the instrument unplugged, there may
occur electrical shock.
Obligatory
Be sure to properly plug the plug or AC adapter into the power outlet.
Otherwise, there may occur a re or electrical shock.
Obligatory
Use an accessory or designated fuse.
Otherwise, the instrument may malfunction or a re may break out.
Obligatory
Make sure that the instrument is properly grounded to protect the human body. Put the plug in the
three-wire grounding socket. Otherwise, there may occur electrical shock.
Prohibitory
Install at a location away from, for instance, a cup containing liquid.
If liquid should be spilled into the instrument, there may occur electrical shock. If so, turn OFF the
instrument and then unplug it from the socket. Contact your Kowa dealer where you purchased it or
your nearest repair shop for inspection.
Disassembly
prohibited
Do not disassemble, modify or repair the instrument yourself. Otherwise, there may occur a re,
electrical shock, instrument malfunctioning or the human body may be injured.
Contact your Kowa dealer where you purchased the instrument for repair. The product assembled
by yourself will not get warranty or any other service.
Prohibitory
The socket or plug board must not be loaded in excess of its rated capacity.
If the main power cable should share an outlet with many other devices, there may occur a re or
you may get an electrical shock.
Prohibitory
Insertion of any metallic object in air vent slots may cause electrical shock resulting in malfunction,
re or electrical shock.
Obligatory
Be sure to use accessory batteries. When replacing them because of their having been in use longer
than a specied useful life, be sure to use specied ones. Because the battery contains ammable
substance such as lithium and organic solvent, there may occur heat build-up, burst or re.
1. Be sure to observe the following:
• Do not charge, short-circuit, disassemble, deform, heat or put into re, the battery.
• Do not connect the battery’s (+) and (–) poles by wire. Do not carry or store it closely together
with metal necklace or the like.
• Properly wire either of the battery’s (+) and (–) poles.
• Do not combine new batteries and used or any other types of batteries when in use.
• Do not solder a wire directly on the battery.
2. Before discarding used batteries, apply adhesive tape around their terminals for insulation. If
they jumble up with other metallic objects or batteries, there may result heat build-up, burst or
re.
3. Be sure to keep batteries off children.

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Caution
Prohibitory Pull off the plug from the power outlet without giving a pull.
Prohibitory Do not plug or unplug the power cord with wet hand.
Prohibitory
Do not install the power unit at unstable locations, for instance, on a shaky base or a tilting surface.
Otherwise, if it should drop off or fall over, the human body may be injured.
Prohibitory Warning
High-temperature
Do not replace flash tube and the observation light bulb immediately after its
service.
Otherwise, you may burn your ngers on the hot tube or lamp. Allow 30 minutes or
so of cool-off before replacing.
Obligatory
When replacing the camera back, rmly hold by hand and x it. Otherwise, it may drop off resulting
in a bodily injury.
Obligatory
The power supply must be provided for the sole use of this fundus camera. Sharing one and the
same power supply with other devices may cause a malfunction.
Obligatory
• This camera back uses two lithium batteries CR123A. Be sure to use appropriate batteries.
• Remove the batteries when the camera is expected to be kept unused for a long period of time.
• Store batteries in a dry and cool place with no direct sunlight.
Obligatory
When moving up or down the chin-rest to adjust the height of the patient’s eyes, carefully manipulate
the camera while checking the position of the patients’ head. A patient with the smaller head may
get his or her head caught between the device components.
Prohibitory
Do not increase the amount of observation light more than is required.
Otherwise, the eye may be injured.
Prohibitory
Do not increase the amount of ash level more than is required.
Otherwise, the patient’s eyes may be injured.
Prohibitory
The air vent must not be obstructed. Such obstruction will cause internal temperature to increase
resulting in occurrences of breakdown, malfunction or a re.
Prohibitory
When batteries are stored, they must not be exposed to direct sunlight, high temperature or high
humidity.
Prohibitory
Keep your ngers off the spaces between sliding base and base’s power housing when operating
the control lever.
There is a fear of your ngers being caught and injured when the sliding base moves.
Prohibitory
Keep your hand off the space between the main camera unit and the horizontal arm when tilting the
camera.
There is a fear of your ngers being caught and injured when the main camera unit is tilted.
Prohibitory
Keep your ngers off the space between the tilt arm and its sliding area.
There is a fear of your ngers being caught and injured when the tilt's sliding area is moving.

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P0-4
Caution
Prohibitory
Keep your ngers off the gap between the base’s power housing and the poles of chin-rest unit.
Therefore, instruct the patient not to hold the poles by hand because there is a fear of your ngers
being caught and injured.
Prohibitory
Keep your ngers off the gap between the base’s power housing and the horizontal arm.
There is a fear of your ngers being caught and injured. When the horizontal arm is lowered or the
sliding base is moving.
Prohibitory
Be careful about the distance between the objective lens and patient's face.
There is a fear that the end of objective lens may get in touch with the patient’s face (eye, nose, so
forth) and injure it when you bring the camera close to the patient.
Prohibitory
Keep your ngers off the space between the ocular and the 35-mm camera back when adjusting
diopter.
There is a fear of your ngers being caught and injured when you rotate the eyepiece.
Prohibitory
Do not wipe the exterior of the instrument with solvent such as benzene, alcohol, thinner and ether.
Doing so may cause discoloration or degradation.

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P0-5
Caution
Air vent
Air vent
Air vent
Air vent
Air vent
A
A
A
A
F
D
D
C
C
D
E
B
A
AG
A
A
Caution
A. Keep your ngers off the spaces between the sliding base and the base’s power housing when
operating the control lever.
There is a fear of your ngers being caught and injured when the sliding base moves.
Caution
B. Keep your hand off the space between the main camera unit and the horizontal arm when tilting
the camera.
There is a fear of your ngers being caught and injured when the main camera unit is tilted.
Caution
C. Keep your ngers off the space between the tilt arm and its sliding area.
There is a fear of your ngers being caught and injured when the tilt's sliding area is moving.
Caution
D. Keep your ngers off the gap between the base’s power housing and the poles of chin-rest unit.
Therefore, instruct the patient not to hold the poles by hand because there is a fear of your ngers
being caught and injured.
Caution
E. Keep your ngers off the gap between the base’s power housing and the horizontal arm.
There is a fear of your ngers being caught and injured when the horizontal arm is lowered or the
sliding base is moving.
Caution
F. Be careful about the distance between the objective lens and patient’s face. There is a fear that
the end of objective lens gets in touch with the patient’s face (eye, nose, so forth) and injures it when
you bring the camera close to the patient.
Caution
G. Keep your ngers off the space between the optical viewnder and the 35-mm camera back when
adjusting diopter.
There is a fear of your ngers being caught and injured when you rotate the eyepiece.
Caution
Insertion of any metallic object in air vent slots may cause electrical shock resulting in malfunction,
re or electrical shock.
Caution
The air vent must not be obstructed.
Such obstruction will cause internal temperature to increase resulting in occurrences of breakdown,
malfunction or a re.

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P0-6
Indication of caution label
Emblem list
Type B applied part
Alternative Current
OFF
ON
Warning,Caution :
See APPENDIX
Warning High-voltage
(See P7-3,P7-4)
Caution High-temperature
(See P7-3,P7-4)
Symbol for
"MANUFACTURER"
Symbol for "AUTHORISED
REPRESENTATIVE IN THE
EUROPEAN COMMUNITY"
High-temperature
Caution
High-voltage
Warning
Warning
Pull the plug of
power cable from
wallsocket when
fuses are replaced.
High-voltage
Warning
Warning
Turn off the power
switch when the
lamp or strobo is
replaced.
Wait until the lamp
or strobo has
cooled when the
lamp is replaced.
Caution

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P0-7
Precautions in operation
● Do not turn ON/OFF the main switch in succession.
There should be an interval of 5 seconds or more.
● When plugging or unplugging, turn OFF the main
switch beforehand.
● Do not change the camera back with the main switch
ON.
●The power line from the power outlet must be exclu-
sively connected to the fundus camera.
Precautions on the main camera unit and
relative systems
● If any stain, smear or scratch should exist on objective
lens, it will appear as a white spot on pictures taken.
Therefore, it is essential to always keep the lens sur-
face clean.
●Do not leave the camera mount open without camera
back mounted. In case the camera is expected to be
not used for a long period of time, be sure to seal the
mount with the accessory cap.
● Protect the optical viewnder barrel and eyepiece tube
from strong shocks or forceful pressures.
● Set a dial or knob with click(s) to its proper click index.
● If picture angle selector, lters in the observation light
system or dioptric lens for compensating the examined
eye should be incorrectly set, pictures taken will result
in failures such as vignetting, under-exposure, and so
forth.
● Securely x the camera back on the camera mount by
its lever. If not, pictures taken will result in failures such
as displaced or out-of-focus images. At worst, the cam-
era back may drop off and damaged and as a result,
you will be obliged to suspend photography.
● Because the main camera unit and camera back are
composed of precision parts, special tools will be
needed for adjustment. Do not attempt to disassemble
or adjust them by yourself.
Disposal Precautions
●LCD display of this instrument has a fluorescent
lamp that contains mercury. When disposing this
instrument, applicable federal, state, and local
regulations must be observed.
● When disposing, this instrument is categorized
as industrial waste; therefore, the disposal must
be handled by licensed industrial waste disposal
contractor.
● Only qualified personnel should operate this equip-
ment.
● When handling the fundus camera, pay special
attention not to give strong shock to it.
●Install and store the instrument in a place free from
high temperature and humidity, direct sunlight, and
avoid the dusty place. Strictly observe the following en-
vironmental conditions:
In operation In Transportation, storage
Environmental Temperature
10 to 35°C -15 to +55°C
Relative Humidity
30 to 90% 10 to 95%
● When in use, in storage or in transit, care must be used
to keep the instrument from dewing.
● Place this fundus camera in room, the luminance of
which can be lowered as low as about 5 lx (the lumi-
nance as low as you can scarcely read newspaper).
● To keep the instrument dust-free, use the cover sup-
plied with it when the camera is not in use.
Precautions on electric system
●In case the KOWA should be used after a
long ‘unused’ period of time, inspect and check the fol-
lowing before starting it:
• The objective lens is neither dusty nor stained.
• The observation light's intensity has not changed.
• The battery (for instance, camera battery) the level of
which stays within service range.
●Connect the camera with the power outlet properly so
that the plug might not be pulled out accidentally.
But if it should occur, be sure to turn OFF the main
switch before connecting the plug again.
●If irregularity should occur in the circuit in the power
unit, for instance, when you plug in with the main
switch ON, “Err 1” will appear on the display and pho-
tographing will be disabled. In this case, turn OFF the
main switch and wait for a while. Then turn it ON. If
“Err 1”does not appear on the display, you may resume
photography.
● Kowa is not responsible for any failure(s) or damage(s)
caused by improvement, repair or maintenance ren-
dered by the third party other than Kowa and its autho-
rized agent.
● Kowa is not responsible for any failure(s) or damage(s)
caused by improvement, repair, or maintenance
rendered using the part(s) other than its designated
one(s).
● The line voltage should be within ±10% of the rated
value.
● Never change the electronic flash intensity when it’s
ashing is on.
● To operate switches on the control panel, rst turn ON
the main switch and then wait for about 10 seconds
(until the power unit becomes internally stable).

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P0-8
Operational (Safety and Hazard prevention) Considerations for
hospital Grade Electrical Equipment
1. Onlyqualiedpersonnelshouldoperatethisequipment.
2. The following items shall be considered when installing equipment.
(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) Equipment 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) Make sure that all batteries are installed properly and in good working order (discharging curve, polarity, and so forth).
(7) Properly connect ground wires.
3. The following items shall be considered when using the instrument.
(1) Make sure that equipment 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 ash 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.
(6) Before operations, make sure that the camera back battery is sufciently charged.
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 equipment and patient are in good condition.
(3) When an abnormality is found on the equipment, 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 statuses following with a
specied 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.
(a) Store the instrument at locations free from splashes of water.
(b) Store 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.
(c) Take care to guard against tilt, vibration and strong impacts, for instance, during transportation.
(d) Equipment must not be stored at locations where chemicals are stored or gasses are generated.
(4) Clean and rearrange accessories, cords, cord restraints 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 it is expected to be not used for a long period of time, keep the camera back with batteries unloaded from it.
6. Ifithassometrouble,alabeldescribingthetroubleshouldbeafxedontheinstrumentandcontactarepair
shop for repair.
7. Equipmentshallnotbemodied.
8. Maintenance
(1) Periodically check the equipment and its components for any abnormality.
(2) When using again the equipment that has not been used for a while, it must be checked beforehand to assure that it is
in normal condition and operates safely.