Topcon TRC-50DX Instruction Manual

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INSTRUCTION MANUAL

RETINAL CAMERA

TRC-50DX

TRC

50DX

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INTRODUCTION

Thank you for purchasing the TOPCON TRC-50DX Retinal Camera.

This instrument is used to observe, take pictures or record pictures of the posterior segment of the eye through the pupil. In Type IA of this instrument, the fluorescein angiography with indocyanine green is possible.

This instrument has the following features:

• This instrument assists the user in obtaining pictures of exceptional and stable quality.

• The instrument is easier to use and operate than previous models.

• A wide variety of optional accessories are available for diverse photographic and

imaging purposes.

This manual outlines the TRC-50DX Retinal Camera, including operating procedures, troubleshooting, maintenance and cleaning. Before using the instrument, carefully read the "DISPLAY FOR SAFE USE" and the "SAFETY CAUTION S" to fam iliariz e yoursel f with the feat ures of th e TRC-50D X Retinal Camera and to ensure that you operate it in an efficient and safe manner. Always keep this Instruction Manual at hand.

CAUTIONS FOR USE

Basic caution

When taking a picture, m ake sur e that the patient keeps hi s/h er hand s aw ay fr om the mo va ble parts to avoid possible injury.

Disposal

When disposing of TRC-50DX parts, follow the local regulations for disposal and recycling.

"Because prolonged intense light exposure can damage the retina, the use of the device for ocular examination should not be unnecessarily prolonged, and the brightness setting should not exceed what is needed to prov ide clea r visua liza tion of the target stru ctures . This de vice shoul d be used with filters that eliminate UV radiation (<400nm) and, whenever possible, filters that eliminate short-wavelength blue light (<420nm).

[Warning]

Be careful not to b ump the patient’s eyes or nose with the instrument dur ing operation.

[The patient may be injured.]

This symbol is applicable for EU member countries only. To avoid potential negative consequences for the environment and possibly human health, this instrument should be disposed of (i) for EU member countries - in accordance with WEEE (Directive on Waste Electrical and Electronic Equipment), or (ii) for all other countries, in accordance with local disposal and recycling laws.

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The retinal exposure do se for a photoche mical haz ard is a product of the radiance and th e exposure time. If the value of radiance were r educed in hal f, twice the time would be neede d to reach the maximum exposure limit.

While no acute optical radiation hazards have been identified for fundus cameras, it is recommended that the intensi ty of light directed into the patient's eye b e limited to the minimum level which is necessary for diagnosis. Infants, aphakes an d persons with diseased eyes will be at greater risk. The ri sk m ay al so be inc reas ed if the p e rso n b ein g ex am in ed has had any expo su re with the same instrument or any other ophthalmic instrument using a visible light source during the previous 24 hours. This will apply particularly if the eye has been exposed to retinal photography."

"Caution: Federal laws restricts this device to the sale by or on the order of a physician."

ENVIRONMENTAL CONDITIONS FOR USE

Temperature: 10°C ~ 40°C Humidity: 30% ~ 75% (Non-condensing) Air pressure: 700hPa ~ 1060hPa

STORAGE, USAGE PERIOD AND OTHERS

1. Environmental condi tio ns (with out packa ge) Temperature: 10°C ~ 40°C Humidity: 30% ~ 75% (Non-condensing) Air pressure: 700hPa ~ 1060hPa

2. When storing the instrument, ensure that the following conditions are met: (1) The instrument must not be splashed with water. (2) Store the instrument away from envi ronments where a ir pressure, te mperatur e, humid-

ity, ventilation, sunlight, dust, salty/sulfurous air, etc. could cause damage.

(3) Do not store or transport the in strument on a s lanted or uneven surface or in an area

where it is subject to vibrations or instability.

(4) Do not store the instrument where chemicals are stored or gas is generated.

3. Normal life span of the instrument: 8 years from delivery providing regular maintenance is performed [TOPCON data]

ENVIRONMENTAL CONDITIONS FOR PACKAGING IN TRANSPORTATION

Temperature: -20°C ~ 50°C Humidity: 10% ~ 95%

CHECKPOINTS FOR MAINTENANCE

1. Periodically inspect the instrument and its parts.

2. Before using the instrument after a long period of inactivity, make sure that it operates safely and normally.

3. Be careful not to s tain the objective lens with fin gerprints, dirt, etc., as this will affect the coatings and quality of pictures that the instrument takes.

4. When the instrument is not in use, cap the ob jecti ve lens and co ver the instrumen t with the dust cover.

5. If the object ive lens is stained, clean it accor ding to "CLE ANING THE O BJECTIVE LENS" on page 58 of this manual.

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DISPLAY FOR SAFE USE

To encourage safe and pro per use and to pr event injuri es to the operator and others or potential damage to property, important messages are put on the instrument body and inserted in the instruction manual. We suggest that everyone understand the meaning of the following displays, icons and text before reading the "SAFETY CAUTIONS" and observe all listed instructions.

DISPLAYS

Display Meaning

ICONS

WARNING

CAUTION

• Injury refers to cuts, bruises, burns, electric shock, etc. which do not require hospitalization or extended medical treatment.

• Physical damage refers to extensive damage to the building, nearby equipment and/ or surrounding furnitur e.

Icon Meaning

Incorrect handling by ignoring this d isplay may lead to a r isk of death or serious injury.

Incorrect handling by ignoring this display may lead to personal injury or physical damage.

Prohibition. Specific content is expressed with words or a picture near the icon.

Mandatory Action Specific content is expressed with words or a picture near the icon.

Caution Specific content is expressed with words or a picture near the icon.

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SAFETY CAUTIONS

Icon Prevention item Page

To avoid fire and ele ctric shock i n cas e of le akage, be su re to u se a grounded receptacle. Do not connect to receptacles that are not grounded.

WARNINGS

To avoid electric shock, do not attempt disassemblin g, rebuilding and/or repairs on your own. Ask your dealer for repairs.

Do not remove the external covers from the main unit, chinrest unit or power supply uni t except for the lamp house co ver. You may receive an electric shock.

To avoid electric shock when replacing the fuse, be sure to unplug the instrument before removing the fuse cover. Do not use ungrounded outlets. Do not plug in the instrument without the fuse cover.

To avoid fire in the ev ent of an instrument malfunction, use onl y the fuses that are marked with the label at the side of the fuse holder.

To avoid fire and electric shock, install the instrument in a dry place free of water and other liquids.

To avoid fi re and elec tric shock, do not put cu ps or other containers with liquids near the instrument.

To avoid electric shock, do not insert metal objects into any vents and/or slots.

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37, 39,

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Disconnect the power plug from the outlet before removing the lamp house cover. Electric shock may occur if you remove the lamp house cover without di sconnecting the power plug. Do not connect the power plug to the outlet while the lamp house cover is not set on the instrument.

To avoid fire in the event of an instrument malfunction, immediately turn OFF th e power switch and unplug the cable if you see smoke coming from the instrument, etc. Ask your dealer for repairs.

To avoid injury, remove the accessories of the UPPER mount before carrying the instrument. The instrument may tip over.

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CAUTIONS

Icon Prevention item Page

To prevent damage and injuries, do not install the instrument on an uneven, unsteady or sloped surface.

To avoid electric shock, do not handle the plugs with wet fingers. 20

To avoid discomfort or damage to the patient's eye, do not brighten the illumination lamp more than necessary.

To avoid discomfort or damage to the patient's eye, do not make a flash intensity level higher than necessary.

To avoid injury while inclining the instrument body, do not place your fingers in to th e g ap b etwe en t he i ns trum ent body a nd t he 1st arm.

To avoid injury while moving the instrument body, do not place your fingers into the gap between the 1st/2nd arm and the chinrest column. *Please give proper instructions to the patient.

To avoid burns, do not replace the lamp with a new one immediately after it goes off. Allow time for it to cool.

To avoid electric shock, do n ot r ep lace t he x en on l am p wi th a new one immediately after it goes off.

To avoid inju ry while moving the base, do not place yo ur fingers into the gap between the instrument base and the power supply unit.

Pay attention to the clear ance betwee n the object ive lens an d the patient. When the main body is moved, the objective lens may bump against the patient's eye or nose inflicting a minor injury.

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CAUTIONS

Icon Prevention item Page

To prevent falls and in jury during tr ansportation of the instrument, be sure to lock the base and arm by using the lock ing lev ers. This will prevent the instrument from moving and sliding.

To avoid injury during carrying, be sure to hold the instrument body at the bottom with two people. Carrying by one person may cause backache or injury by falling. Holding at areas other than the bottom may also caus e pinched fingers and injury, as well as falling, thereby causing damage to the instrument.

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To avoid falli ng and in jury while moving the instrument on a r ol li ng table, be sure to use an approved instrument table.

To avoid injury while moving the chinrest up and down, instruct the patient to keep hands away from moving parts.

Be careful not to let the patient hold the column. His/her finger may be pinched between the column and 1st/2nd arm causing injury.

To avoid elec tric shock, be sure to turn the pow er switch off and unplug the power cord before replacing the lamp.

Ensure that the 35 mm camera is installed firm ly by fastening the 35mm camera body locking lever. If installed loosely, the camera may fall off, resulting in severe damage to the unit and bodily injury.

When installing accessories, secure them firmly by fastening the accessory locki ng lever. If installed loosely, the accessories may f all off, leading to bodily injury.

This instrument has been tested (with 100-120V/200-240V) and found to comply with IEC60601- 1-2: 2001 . This instrument radi ates radio frequency energy within standards and may affect other devices in the vicinity. If you have discovered that turning on/off the instrument affects other devices, we recommend that you change its position, keep a proper distance from other devices, or plug it into a different outlet. Please consult your authorized dealer if you have any ad ditional questions.

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54, 55

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USAGE AND MAINTENANCE

USAGE

• The TRC-50DX Retinal Camera is an electric instrument for medical use. Use this instrument under a doctor's guidance.

USER MAINTENANCE

To ensure the safety and performance of the instrument, all maintenance work, unless specified in this manual, shall be conducted by trained service engineers. The following maintenance tasks may be done by the user. For details, see the relevant part of this manual.

Replacing lamps:

The illumination lamp and Xenon lamp may be replaced by the user. For details, see "REPLACING THE ILLUMINATION LAMP" on page 54 and "REPLACING THE XENON LAMP" on page 55.

Replacing fuses:

The fuses on the instrument body may be replaced by the user. For details, see "REPLACING THE FUSE" on page 57.

Cleaning the objective lens:

The objective l ens may be cleaned by the user. For details, see "CLEANING THE OBJECTIVE LENS" on page 60.

ESCAPE CLAUSES

• TOPCON shall not take any responsibility for damage due to fire, earthquakes, actions by third persons and other accidents, or damage due to negligence and misuse by the user and any use under unusual conditions.

• TOPCON shall not take any responsibility for damage derived from inability to properly use this instrument, such as loss of business profit and suspension of business.

• TOPCON shall not take any res ponsibility for damage caus ed from using this instrument in a manner other than that described in this Instruction Manual.

• Diagnoses made shal l be the responsibilit y of pertaining doctors and TOPCON shall not take any responsibility for the results of such diagnoses.

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WARNING DISPLAYS AND POSITIONS

To ensure safety , this machin e provides warning displays. Use the instrument corre ctly by observi ng the di splay instru ctions. If any of the fo llowing display lab els are missing, cont act yo ur TOPCON dealer at the address li sted o n the b ack cover of t his man ual .

CAUTION

y To a void injury while operating the instru-

ment, be carefu l to preve nt you r han d from being pinched by the movable parts.

CAUTION

y To avoid injury to the patient while operat-

ing the instrument, be careful not to hit his/ her face with the ins trument body.

WARNING

y Before replacing the fuse with a new one, to

avoid electric shock and fire, turn off the power switch and remove the power cable from the outlet. Be sure to use the correctly rated fuse for replacement.

TRC

WARNING

y To avoid injury, remove the accessories of

the UPPER mount before carrying the instrument. The instrument may tip over.

WARNING

y Before replacing the lamp unit with a new

one, turn off the power switch and remove the power cable from the outlet to avoid electric shock.

50DX

CAUTION

y To avoid burns, do not replace the lamp

with a new one immediately after it goes off because it is still very hot and can cause burns.

CAUTION

y To avoid electric shock, do not open the

covers. Ask your service personnel for repairs.

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CONTENTS

INTRODUCTION ................................................................................................................1

CAUTIONS FOR USE ........................................................................................................1

ENVIRONMENTAL CONDITIONS FOR USE......................... ...... ...... ....... ...... ....... ...... ......2

STORAGE, USAGE PERIOD AND OTHERS.....................................................................2

ENVIRONMENTAL CONDITIONS FOR PACKAGING IN TRANSPORTATION.................2

CHECKPOINTS FOR MAINTENANCE..............................................................................2

DISPLAY FOR SAFE USE..................................................................................................3

SAFETY CAUTIONS ..........................................................................................................4

USAGE AND MAINTENANCE............................................................................................7

USAGE ...............................................................................................................................7

USER MAINTENANCE.......................................................................................................7

ESCAPE CLAUSES............................................................................................................7

WARNING DISPLAYS AND POSITIONS ...........................................................................8

NOMENCLATURE

COMPONENTS OF MAIN UNIT.......................................................................................12

COMPOSITION OF PARTS WHICH CONTACT WITH THE HUMAN BODY...................14

COMPONENTS OF BASE UNIT......................................................................................15

COMPONENTS ON CONTROL PANEL SCREEN...........................................................16

NAMES IN OPTICAL FINDER..........................................................................................18

STANDARD ACCESSORIES ...........................................................................................19

SETUP

CONNECTING THE POWER CORD ...............................................................................20

CONNECTING THE EXTERNAL DEVICE .......................................................................21

RESET FROM POWER SAVE STATE .............................................................................22

SETTING ON THE SET MENU DISPLAY........................................................................23

BASIC OPERATIONS

PREPARATION FOR PHOTOGRAPHY ...........................................................................28

PREPARATION OF THE PATIENT...................................................................................30

COLOR PHOTOGRAPHY ................................................................................................32

FAG PHOTOGRAPHY......................................................................................................37

ICG FLUORESCEIN PHOTOGRAPHY (ONLY IN TYPE IA)............................................39

RED FREE PHOTOGRAPHY WITH GREEN FILTER

(ONL Y IN RELEVANT PRODUCTS).................................................................................40

AUTO FLUO (AUTO FLUORESCENCE) PHOTOGRAPHY

(ONL Y IN RELEVANT PRODUCTS).................................................................................40

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OBJECTIVE OPERATIONS

PHOTOGRAPHY BY INCLINATION AND SWINGING.....................................................42

BLUE FILTER PHOTOGRAPHY.......................................................................................43

PHOTOGRAPHY WITH ALTERNATIVE FILTER (EXCLUDING TYPE IA).......................43

STEREO PHOTOGRAPHY ..............................................................................................44

INTERNAL FIXATION TARGET MOUNT (ONLY IN TYPE IA).........................................45

BEFORE REQUESTING SERVICE

TROUBLESHOOTING......................................................................................................46

ERROR CODE LIST.........................................................................................................49

SPECIFICATIONS AND PERFORMANCE

SPECIFICATIONS............................................................................................................50

ELECTRIC RATING..........................................................................................................50

SYSTEM CLASSIFICATION.............................................................................................51

DIMENSIONS AND WEIGHT ...........................................................................................51

PURPOSE OF USE..........................................................................................................51

OPERATION PRINCIPLE.................................................................................................52

MAINTENANCE

DAILY CHECKUPS...........................................................................................................53

ORDERING CONSUMABLES..........................................................................................53

MAINTENANCE BY THE DEALER ..................................................................................53

REPLACING THE ILLUMINATION LAMP ........................................................................54

REPLACING THE XENON LAMP ....................................................................................55

REPLACING THE FUSE ..................................................................................................57

REFILLING THE CHINREST TISSUE PAPER.................................................................58

THE FAG FLUORESCEIN FILTER...................................................................................58

CLEANING

CLEANING THE EXTERNAL COVER, CONTROL PANEL AND OTHERS.....................60

CLEANING THE PARTS WHICH COME INTO CONTACT WITH THE PATIENT ............60

CLEANING THE OBJECTIVE LENS................................................................................60

CLEANING THE LENS WHICH IS SEEN IN UPPER MOUNT ........................................61

OPTIONAL ACCESSORIES

OPTIONAL ACCESSORY MOUNTING/DETACHING METHODS...................................63

ACCESSORY LENS CLEANING METHODS...................................................................67

1× RELAY LENS ADAPTER OR-2 ...................................................................................68

TV RELAY LENS ADAPTER.............................................................................................69

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REFERENCE MATERIAL

SHAPE OF PLUG.............................................................................................................71

SYMBOL...........................................................................................................................71

USABLE AUTOMATIC INSTRUMENT TABLE .................................................................72

ELECTROMAGNETIC COMPATIBILITY ..........................................................................73

RELATION BETWEEN SETTING OF ILLUMINATION/FLA SH LEVEL

AND MAXIMUM RADIANCE..............................................................................................77

INFORMATION ABOUT THE OPTICAL RADIATION HAZARD

FOR THE USER....................................................................................................................78

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NOMENCLATURE

COMPONENTS OF MAIN UNIT

Main unit

Astigmatic correction knob External Cover Objective lens barrel

Objective lens Cable holder

Internal fixation target mount Internal fixation target mount

(TYPE IA with split lines)

Swing arm locking lever

TRC

50DX

UPPER mount UPPER mount locking lever

Diopter compensation lens selector Shading compensation cover Optical finder LOWER mount LOWER mount locking lever

Angle changing lever Focusing knob Barrier filter cover

Filter switching knob Lamp house cover

Angle changing lever........ ...................... 50°, 35° or 20° ma y be selected as the angle of cover-

age.

Diopter compensation lens selector.......Used to compensate the di optric power o f strong myo pia

and hyperopia in the patient and also used for ocular

anterior photography.

Filter switching knob...............................Changed for different kinds of photography.

UPPER mount ........................ ................ Optional accessories (different types of relay l enses) are

mounted here.

Internal fixation target mount..................Usable when the split lines are OFF. (Only in Type IA with

split lines)

Shading compensation cover .............. ...Open thi s cover when cleani ng the lens which i s seen in

the UPPER mount.

Astigmatic correction knob..................... Used when correcting the astigmatism degree of the

patient. (Only in relevant produc ts)

Internal fixation target mount......... ...... ...Th e internal fixat ion target can b e mounte d. (This c an be

installed as an optional accessory in Type IA (without

split lines), and as a standard a ccessory in Type IA (with

split lines).)

NOMENCLATURE

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Tilting unit

Inclination brake knob

Base unit

"Horizontal" index window Inclination handle

Inclination rail

2nd arm

Control panel Photography switch Illumination level knob

Control lever Cover

Level adjuster

External connection terminal

USB terminal DATA terminal

1st arm Base Main unit connecting cord

Base unit connecting cord Power cord Fuse holder

Power switch

DATA

CONTROL

TIMER

TIMER terminal CONTROL terminal

Photography switch ........................ Press this switch, and the xenon lamp flashes and different

Inclination handle...........................Performs inclination in upper 15° and lower 10°.

Inclination brake knob....................Inclination is set to "free" or "lock" by turning this knob.

2nd arm..........................................Swings up to 30° to the right and left.

CONTROL terminal........................Used to connect to IMAGEnet.

DATA terminal ................................Used to communicate with IMAGEnet.

TIMER terminal ..............................Used to connect with the video timer.

USB terminal..................................Used to connect to IMAGEnet.

types of photography are possible.

NOMENCLATURE

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NOMENCLATURE

Headband...................Used when fixing the patient's head. (Only in relevant products)

COMPOSITION OF PARTS WHICH CONTACT THE HUMAN BODY

Forehead rest : Polyamide resin Chinrest : Polyamide resin Headband : Polyvinyl chloride resin Chinrest adjusting knob : Polyacetal resin Chinrest tissue pin : Polyamide resin Chinrest tissue : Paper

Chinrest unit

External fixation target

Forehead rest

Canthus marker

Headband Chinrest tissue pin Chinrest

Chinrest adjusting knob Column

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COMPONENTS OF BASE UNIT

Control panel

TIME (Timer) switch Ba (Barrier) switch Ex (exciter) switch SPLIT switch

Operation panel

Illumination level knob

STEREO lever Base fixing lever

SPLIT

UPPER/LOWER selector switch

Flash correction switches

Flash selector panel

Flash selector switch

TIME

LOCK LOCK STEREO STEREO

FREE FREE FREE FREE

Control panel..................................On this touch panel, the set data are displayed and a variety of

setting is done.

Illumination level knob....................Adjusts the illumination level according to the patient's eye.

Ba (Barrier) switch..........................Sets the barrier fil ter. Press this switch again, and th e barrier

filter is removed.

TIME (Timer) switch......... ...... ....... .Press this s witc h, an d th e tim er s tarts. Pr ess i t a gai n, and the

timer stops.

Ex (exciter) switch ........... ..............Sets the ex citer filter. Press this sw itch again, a nd the exci ter

filter is removed.

SPLIT switch.................................. Sets the internal fixation target to "OFF". Press this switch,

and the split lines are set. Press this switch again, and the

split lines are removed. (Only in relevant products)

STEREO le ver................................ Us ed for stereo photography. Refer to "STEREO PHOTOG-

RAPHY" on page 44 for details.

Base fixing lever.............................Used to lock the base.

UPPER/LOWER selector switch ....When UPPER is selected, photography by the UPPER set

camera is possible.

When in POW ER SAVE mode , push this switch t o reset the

instrument.

Flash selector switch...................... Photography light intensity can be selected in 11 steps. NF

means no light emission from the xenon flash lamp.

Flash correction switches...............Increase or decrease the preset light intensity. (It can be

changed by 21 steps.) Press the

bu tton to increase i t or

the button to decrea se it. For example, when th e preset

light quantity is 36W·s, one press of the button changes the

setting to a value between 36W·s and 50W·s and turns on

both switches (36) and (50).

NOMENCLATURE

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COMPONENTS ON CONTROL PANEL SCREEN

(

)

Setting operation display (Example of the photography mode color)

Photography mode indication

Timer ind i cation

Angle of coverage indication

FLASH (flash level) indication

ALIGNMENT switch SMALL PUPIL switch FILTER switch

Menu switch

APERTURE (photography aperture) indication

Right/left detection indication

Illumination level indication

Photography mode in dication ... Indicates the currently set photography mode. The modes, "COL

(Color)", "GRE (Green)", "FA (FAG)", "F1, F2, AF (AUTO FLUO)" and "IA (ICG fluorescein)" ("AF, IA" in use only in Type IA) are changed by o perat ing "F ilter s witch ing kn ob" on t he ma in uni t, "Ex

switch" and "Ba switch".

ALIGNMENT switch ..................Turns on/off the alignment bright spot.

SMALL PUPIL switch................Changes the current mode to the microcoria mode.

FILT ER switc h ........................... Ba (barrier) fi lter or Ex (exciter) filter is set in the link operation

with the photography switch. When the link operation is OFF, it is

possible to take a picture as regarding the Ex (exciter) filter as the

blue filter.

Menu switch........ ......................Indicates the set menu. Wh ile the TIME switch is operating, th is

switch disappears on the screen to prevent a wrong operation.

Timer indication .........................Press the TIME (timer) switch on the base unit, and the timer

starts. Press the switch again, and the timer stops.

Angle of coverage indication.....Indicates the angle of co verage, w hich i s set by the a ngle chan g-

ing lever on the main unit. FLASH (flash level) indication...Indi cates th e FLAS H (flas h level ), whic h is s et by the flas h selec -

tor switch and the flash correction switches on the base unit.

APERTURE ............... ............ ...By using the switch, it is po ssible to adjus t the f ocus easily

photography aperture

(increased depth of field). By using the switch, it is possible

SMALL

LARGE

to take a picture with low flas h level. This can be used in col or

photography and ICG fluorescein photography (only in Type IA).

Right/left detection indication ...."L" (left eye) or "R" (right eye) is indicated.

Illumination level indication .......Indicates the illumina tion level (halog en), which is set b y the illu-

mination level knob on the base unit.

NOMENCLATURE

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SET MENU display

Carries out a variety of settings. Press the MENU button on the setting operation display, and "SET MENU" will be displayed. Refer to "SETTING ON THE SET MENU DISPLAY" on page 23.

FLASH LEVEL (Flash level standard setting)

FIX COLOR (External fixation color selection)

FLICK (External fixation blinking selection)

FILTER IN/OUT (Filter link operation method)

I/F (Interface selection)

EXIT switch

FLASH LEVEL (Flash level standard setting) .... Sets the flash intensity level standard value for

each photography mode.

FIX COLOR (External fixation color selection)... Selects the color of the external fixation lamp,

"AUTO" (automatic), "GREEN" or "RED".

FLICK (External fixation blinking selection)........ Selects the status of the external fixation lamp,

"ON" (blinking) or "OFF" (lighting)

FILTER IN/OUT (Filter link operation method)... Selects the link operation method for the photog-

raphy switch and Ba (barrier) filter.

I/F (Interface) switch........................................... Changes the interface.

EXIT switch ........................................................ Returns to the setting operation display.

NOMENCLATURE

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NAMES IN OPTICAL FINDER

00.00.0

TIMER

R 50

Reticles

Alignment bright spot Split lines

"With split" type

Reticles

"Without split" type

Alignment bright spot

NOMENCLATURE

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STANDARD ACCESSORIES

Upon unpacking, make sure that all the following standard accessories are included. Numbers in ( ) are the quantities.

Spare parts case (1) Fuse (2)

Chinrest tissue paper (1) Chinrest tissue pin (2)

External fixation target (1) Allen wrench (2)

Large: (2.5)

Small (1.5)

Dust cover (1) Screw (for main unit connecting cord) (3)

Instruction manual (1) Unpacking and assembly manual (1)

Phillips screwdriver (1) Inclination brake lever (1)

Internal fixation target mount (1) (Only in relevant products)

NOMENCLATURE

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SETUP

CONNECTING THE POWER CORD

To avoid fire and electri c shock in case of leakage, be sure to use a

WARNING

grounded receptacle. Do not connect to receptacles that are not grounded.

CAUTION

1 Make sure that the on the instrument is in the "OFF" ( ) position.

To avoid electric shock, do not handle the plugs with wet fingers.

POWER SWITCH

2 Connect the power cord into a grounded outlet.

SETUP

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CONNECTING THE EXTERNAL DEVICE

Consult your dealer for connection with external devices.

Use the external device complying with IEC 60950.

Connecting to IMAGEnet

This instrument can be connected to IMAGEnet (optional accessory) by two methods. Connecting method 1: when using the USB term ina l

1 Connect one end o f the USB cable (optional accessory) to the USB te rminal. Connect

another end of the USB cable to IMAGEnet. Send the data (right/left eye detection indication, angle of coverage indication, etc.) of the instrument from the USB terminal and receive the data (timer, flash level, etc.) of IMAGEnet.

2 Connect one end of the co nnecting cord (op tional accessory) to the CONTROL termi nal.

Connect another end to IMAGEnet. Performs synchronization.

Connecting method 2: when using the DATA terminal

1 Connect one end of the conne cting cord (optiona l acces sory) to the DATA terminal . Con-

nect another end of the connecting cord to IMAGEnet. Send the data (right/left eye detection indication, angle of coverage indication, etc.) of the instrument from the DATA terminal.

2 Connect one end of the co nnecting cord (op tional accessory) to the CONTROL termi nal.

Connect another end to IMAGEnet. Performs synchronization.

DATA

CONTROL

USB terminal

DATA terminal CONTROL terminal TIMER terminal

In the U.S. and Canada, use PC which complies with UL60950 or IEC60950.

Connecting to the video timer

TIMER

1 Connect the timer cable (optional accessory) to the TIMER terminal. 2 Connect the timer cable (optional accessory) to the input terminal of the video timer

(optional a ccessory).

3 Connect the video signal cable to the input terminal of the external monitor.

Consult your dealer for the details. In the U.S. and Canada , use video timer or monitor which co mplies with UL60950 or IEC60950.

SETUP

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RESET FROM POWER SAVE STATE

This instrument has a power saving feature to save energy. After 30 minutes of non-use, the instrument switches to power save mode. In ICG fluorescein photo graphy (only in Type IA), after 60 minutes of non-us e, the instrument switches to power save mode. In the power saving state, "SLEEP" is indicated on the control panel.

SLEEP

Control panel

1 Press the of the on the base unit.

After a few seconds, operation is possible.

PHOTOGRAPHY SWITCH

JOYSTICK

SETUP

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SETTING ON THE SET MENU DISPLAY

Setting for the followi ng items can be do ne on the "SET MENU" di splay on the contro l panel: "FLASH LEVEL" (flash level standard setting), "FIX COLOR" (external fixation color selection), "FLICK" (external fixation blinking selection) and "FILTER IN/OUT" (filter link operation method).

1 Press the MENU switch on the setting operation display on the control panel.

2 The "SET MENU" display appears.

FLASH LEVEL (Flash level standard setting)

FIX COLOR (External fixation color selection)

FLICK (External fixation blinking selection)

FILTER IN/OUT (Filter link operation method)

I/F (Interface selection)

EXIT switch

3 Press the switch, and the setting operation display appears again.

EXIT

SETUP

Page 26

FLASH LEVEL (Flash level standard setting)

You can set the flash level standard value for each photography mode. The following table shows the data of the factory default.

1 Press the on the "SET MENU" display.

The "FLASH LEVEL" setting display appears.

FLASH LEVEL

2 Touch the value indication window to be changed in each

photography mode. Black numbers will appear against a white background.

3 Change the numeral wit h th e and switches. Use the

switch to return to the initial value.

4 Press the switch, to store the data. The "SET

MENU" display will appear again.

If you press the switch, the data will not be stored. The data is reset as before and the "SET MENU" display will appear again.

MEMORIZE

RETURN

Type IA

Initial values

UPPER LOWER UPPER LOWER COLOR 18 50 COLOR 18 50 GREEN 25 50 GREEN 25 50 FA 36 200 FA 36 200 BLUE 18 150 BLUE 18 150 FREE1 9.0 9.0 AF 36 200 FREE2 9.0 9.0 IA NF ---

Type IA

SETUP

Page 27

FIX COLOR (External fixation color selection)

You can select "AUTO" (automatic) or "GREEN" or "RED" for the external fixation lamp. "AUTO" is the factory default.

1 Press the on the "SET MENU" display.

The "FIX COLOR A UTO/GREEN/ R ED" s el ec ti on displ ay w il l appear.

2 Press and select , or .

When you select "AUTO", color is automatically selected according to the photography mode.

3 Press the switch, to store the data. The "SET

MENU" display will appear again.

If you press the switch, the data will not be stored. The data is reset as before and the "SET MENU" display will appear again.

Press the swit ch, and "GREE N" is set in ICG fluorescein photography and "RED" is set in other photography modes.

FLICK (External fixation blinking selection)

You can set the external fixation lamp to "blinking" (ON) or "lighting" (OFF). "OFF" is the factory default.

FIX COLOR

AUTO GREEN RED

MEMORIZE

RETURN

AUTO

1 Press the switch on the "SET MENU" display.

The "FLICK ON/OFF" selection display will appear.

2 Press and select or . 3 Press the switch, to store the data. The "SET

MENU" display will appear again.

If you press the switch, the data will not be stored. The data is reset as before and the "SET MENU" display will appear again.

FLICK

ON OFF

MEMORIZE

RETURN

SETUP

Page 28

FILT ER IN/OUT

Decide the Ba (barrier) filter or Ex (exciter) filter link operation method. "OUT" is the factory default.

1 Press the switch on the "SET MENU" display.

The "FILTER IN/OUT" selection display will appear.

2 Press and select or . (Refer to the table below.) 3 Press the switch, to store the data. The "SET

MENU" display will appear again.

If you press the switch, the data will not be stored. The data is reset as before and the "SET MENU" display will appear again.

When you set the link operation of the Ba (barrier) filter and the , the relevant un its will operate as shown in the fol lowing table because of the rela tion between the setting for "FILTER IN/OUT" on the "SET MENU " display and the switch on the control panel.

FILTER IN/OUT

IN OUT

MEMORIZE

RETURN

PHOTOGRAPHY SWITCH

FILTER

SET MENU FILTER IN/OUT

The switch is displayed when the filter for fluorescein photography is set.

OUT

FILTER

FILTER switch

(The background of switch is black.)

Press the , and the Ba (barrier) filter is inserted and it stays there.

Each time you press the

PHOTOGRAPHY SWITCH

rier) filter is inserted and removed.

PHOTOGRAPHY SWITCH

, the Ba (bar-

OFF

(The background of switch is white.)

The Ba (barrier) filter is not linked with the . If you press the Ba (barrier) filter switch, photograph y with blue filter is possible.

PHOTOGRAPHY SWITCH

SETUP

Page 29

I/F

Set the interface to "USB" or "NORMAL". "NORMAL" is the factory default.

1 Press the switch on the "SET MENU" display. The

"USB/NORMAL" selection display will appear.

I/F

2 Press and select "USB" or "NORMAL". 3 Press the switch, to store the data. The "SET

MENU" display will appear again.

If you press the switch, the data will not be stored. The data is reset as before and the "SET MENU" display will appear again.

Refer to "CONNECTING THE EXTERNAL DEVICE" on page 21. Select " USB" for the connec ting method 1, and "NORMAL" for the connecting method 2.

MEMORIZE

RETURN

SETUP

Page 30

BASIC OPERATIONS

PREPARATION FOR PHOTOGRAPHY

1 Check the connection of the power cord . Refer to "CONNECTING THE POWER CORD"

on page 20 for the connection procedure.

2 Set each POWER SWIT CH on the in strument and the exte rnal reco rd device t o the "ON"

(I) position.

3 Make sure that the instrument is position ed horiz on tally.

If the instrument is not set horizontally, incline it up and down until the "Horizontal" index window is red. Swing the instrument right and left and stop it where the direction of the 1st arm is fit to that of the 2nd arm. Refer to "PHOTOGRAPHY BY INCLINATION AND SWINGING" on page 42.

"Horizontal" index window

Inclination brake knob

Swing arm locking lever

Inclination handle

To fix the instrument, tighten the inclination brake knob and swing arm locking lever.

Fit the direction of 1st arm to that of 2nd arm.

4 Adjust the dioptric power of the optical finder.

How to adjust the dioptric power:

Place a white paper i n tigh t contact with the objec tive lens ba rrel. (Be careful not to touch the lens.) Turn the eyepiece lens counterc lockwise to put it o ut fully. Then, gradually turn the eyepiece lens clockwise and, when the reticles (double cross-hairs) are seen clearly, stop turning.

Dioptric power of optical finder

Out of focus In focus

Inaccurate dioptric power adjustment results in unfocused photos.

Refer to "NAMES IN OPTICAL FINDER" on page 18.

BASIC OPERATIONS

Page 31

5 How to move the instrument by the control lever.

• To move the base unit sligh tly back an d forth or right and left, tilt the control lever in the proper direction.

Operation of control lever (back and forth/right and left)

Guiding the ba se c over wi th on e hand , push th e con trol leve r with t he oth er ha nd in the desired direction. You will move the instrument easily.

• To move the instrument body up and down, turn the control lever clockwise to move it up and counterclockwise to move it down.

Operation of control lever (up and down)

BASIC OPERATIONS

Page 32

PREPARATION OF THE PATIENT

CAUTION

NOTE

To avoid injury while moving the chinrest up and down, instruct the patient to keep hands away from moving parts.

Be careful not to l et the patient hold the colu mn. His/her finger m ay be pinched between the column and 1st/2nd arm causing injury.

Ask the patient to remove any glasses or contact lenses.

1 Drop the mydriatic age nt in the patient's e yes to achiev e full dila tion. Make su re that the

patient's pupils are fully dilated before beginning photography.

If dilation is inadequate: When the pupils are only dilated from 4.5mm to 5.5mm, press the . (If the pupils are dilate d to 4.5mm or less, photography is not pos sible.) Also, photograph at an angle of coverage of 35° or 20°. When photo graphed at the 50° angle, it may not be possible to eliminate flare completely.

* Do not use the in other cases except when dilation of the pupil is

inadequate.

SMALL PUPIL SWITCH

4.5~5.5mm 5.5mm or more

2 Lead the patient to the photography room. 3 Pull the instrument properly to the operator side. 4 Let the patient sit down in front of the instrument. 5 Adjust the height of the table o r the chair so that the patient can relax with his/her chin

placed centrally on the chinrest. Then, let the patient rest his/her chin on the chinrest.

BASIC OPERATIONS

Page 33

6 Adjust the chinrest hei ght by tur ni ng the chinr es t adj ustin g kn ob s o that the outsid e co rn er

of the patient's eye is leve l with th e Canthus marker on the chin re st col um n. The n, l et the patient rest his/her forehead on the forehead rest. Use the headband if necessary. (The headband is installed only in the relevant products.)

Canthus marker

7 Guide the patient's eye so that the target part of the fundus can be photographed.

Guide the patient's eye appropriately by moving the external fixation target. If it is difficult to fix the patient's eye on the target due to myopia or others, turn ON the "FLICK" (External fixation blinking selection) on the "SET MENU" display to blink the external fixation target for fixing the patient's eye more easily. Refer to "FLICK (External fixation blinking selection)" on page 25.

BASIC OPERATIONS

Page 34

COLOR PHOTOGRAPHY

CAUTION

To avoid di scomfort or damage to the patient's eye, do not brighten the illumination lamp more than necessary.

To avoid discomfort or damage to the patient's eye, do not make a flash intensity level higher than necessary.

To avoid injury wh ile moving the base, do not plac e your fingers into the gap between the instrument base and the power supp ly unit.

To avoid inju ry while inclining the in strument body, do not place your fingers into the gap between the instrument body and the 1st arm.

To avoid injury wh ile moving the instrument body, do not place your fingers into the gap between the 1st/2nd arm and the chinrest column. * Please give proper instructions to the patient.

Pay attention to the clearance between the objective lens and the patient. When the main body is m oved, the objective le ns may b ump agains t the patient's eye or nose inflicting a minor injury.

To ensure corre ct imaging, adjust the height of the automatic instru-

NOTE

1 Set the to "N".

FILTER SWITCHING KNOB

2 Select the camera with the of the base unit.

• In the case of the 35mm camera, check the film.

• In the case of the video camera, check the recording condition of the camera.

ment table so that the patient ca n relax with his/her chin placed ce ntrally on the chinrest.

UPPER/LOWER SELECTOR SWITCH

LOCK LOCK

FREE FREE

BASIC OPERATIONS

Page 35

3 The flash level is automatically changed according to photography modes.

Set the flash level. Set flash level with the and the .

FLASH SELECTOR SWITCH FLASH CORRECTION SWITCH

Flash correction switch

Flash selector switch

4 Tell the patient to watch the external fixation target or the inter-

nal fixation target (only in Type IA).

5 Align the illumination light with the patient's pupil.

Set the illumination level with the . You can c heck the s et leve l by lo oking at the illum inatio n leve l display on the control panel.

ILLUMINATION LEVEL KNOB

How to properly align the illumination light:

First look at the patie nt's pupil from th e side of the i nstrument. To make the illumination light coaxial to the patient 's pupi l, move r oughly the ma in body to a po sitio n about 4 0mm in front o f the patient's eye with the joystick positioned straight, and then, adjust the joystick up and down/ right and left. Then, fin ely a dju st the joystick to image the r in g sli t o n th e c or nea c oaxia ll y with the patient's pupil.

• Ring slit images on cornea

• Images observed by viewfinder

• Images acquired by camera

BASIC OPERATIONS

Page 36

6 Push the base unit toward the patient side slowly, and the retinal image is seen in the opti-

cal finder.

7 Watching the observed image in the optical finder, adjust its brightness with the

ILLUMINATION LEVEL KNOB

8 Finely adjust the main body forward and backward to illuminate the retina evenly.

• When the alignment bright spots are used:

Press the on the control panel.

Move roughly the main body in to a posit ion abou t 40 mm in f ront of t he patient's eye with the joystick positioned st raig ht. T hen ad just t he j oysti ck u p and d own / righ t an d left until the illumination light becomes coaxial wi th the patient 's pupil. The alignment brig ht spots will app ear on the right and left sides in th e optical fi nder. Make these spots as small as possible.

If the patient moves the eyes or when photographing the periphery by tilting or swinging, sometimes the alignment bright spots on the right and left disappear.

ALIGNMENT SWITCH

• Adjust alignment so that flares cannot be seen.

• The instrument can be used as mentioned above for the front of 50°.

• When the angle of c ov erage is ch ange d or whe n pho togr ap hi ng the perip her y, it is not

possible to use the alignment bright spots.

9 Focus the retina.

• How to focus the retinal image with the split lines* (Only in "With split" type)

Set the internal fixation target (only in Type IA) to the "OFF" posi tion, and turn on the

SPLIT SWITCH

Turn the focusing knob to align the right and left split lines. * The split lines cannot be used if the is set

other than "0".

DIOPTER COMPENSATION LENS SELECTOR

SPLIT

TIME

BASIC OPERATIONS

Page 37

If you cannot align the split lines into one line by operating the focusing knob, change the diopter compensation lens by the diopter compensation lens selector.

If the split lines are not easily visible, lower the illumination level. If one of the split lines cannot be seen, check if dilation is sufficient or if the eye is obstructed by eyelashes or the eyelid, interrupting the light.

When the split lines are not necessary, they can be deleted from the optical finder. Press the , and the split lines disappear from the optical finder. Press the again, and the split lines are displayed in the optical finder.

• How to sharply focus the retinal image:

While looking in to th e op tic al fin der, turn the focusi ng k no b s o th at th e r etinal im age and the reticles are observed sharply and distinctly in the field at the same time.

SPLIT SWITCH SPLIT SWITCH

How to adjust focus easily Press the switch of "APERTURE" (p hotography aperture). (Th is can be used in

color photography and ICG fluorescein photography (only in Type IA).)

How to photograph retinal peripheries Have the patient watch the external fixation target correctly with the eye that is not being

photographed. Then, photograph the peripheries. It will be pos sible to photo graph the perip heries of the retina, by tilt ing and/or sw inging the main body. (Refer to P. 42.) When photograph ing the r etinal peripheri es, the s plit lines are de viated. Take a pictu re so that retina may be in focus.

SMALL

10 Set the angle of coverage.

Move the to set the angle of coverage to 50°, 35° or 20°. To check the angle in use, see the picture angle display on the control panel screen.

Pay attention to the relationship between fla re and focus due to difference in a ngle of coverage. If flare is elimi nated at the 50° angle of coverage, no fla re occurs at 35° or 20°. Furthermore, refocusing is unnecessary at 50° if the retinal image has already been properly focused at 35° or 20°.

ANGLE CHANGING LEVER

BASIC OPERATIONS

Page 38

11 Make sure that the split line is aligned with the alignment bright spot. Press the

PHOTOGRAPHY SWITCH

If the light intensity of the photography image is not correct, adjust it with the

FLASH CORRECTION SWITCH

How to change the dioptric power compensation

To adjust the dioptric power, turn the according to the patient's eye condition.

Diopter compensation lens selector

when the patient's eye is fully open. Instruct him/her not to blink.

Photography switch

and repeat the alignment and photography procedure.

DIOPTER COMPENSATION LENS SELECTOR

50DX

TRC

Compensation range 0 : -10D ~ +6D

- : -23D ~ -9D +: +5D ~+23D A : +22D ~ +41D

When the diopter comp ens ati on len s i s se t to any ot her v alues ex c ept "0", the split lines are OFF. (Only in "With split" type)

How to change the dioptric power compensation (This correction unit is installed in one type and not installed in another type.)

According to the astigmatism degree of the patient's eye, pull out th e astigmatism correc tion knob and turn the dial to adjust the astigmatism.

The astigmatism c orrection is cla ssified into two st eps, "3D" and "6D". Pu sh the astigmatism correction kn ob to the inne rmost, and the instrument doe s not correc t the astigmatism. Pull out the astigmatism correction knob and set it at "3". The instrument performs the 3D astigma tism correction. Set it at "6", and the instrument performs the 6D astigmatism correction.

BASIC OPERATIONS

Page 39

F AG PHOTOGRAPHY

WARNING

To avoid fire an d electric shock, do not put c ups or other containers with liquids near the instrument.

To ensure corre ct imaging, adjust the height of the automatic instru-

NOTE

ment table so that the patient ca n relax with his/her chin placed ce ntrally on the chinrest.

The basic operatio n is the same as "COLOR PHOTOGRAPHY". The only di fference is the insertion of the fluorescein filters and intravenous injection of fluorescein to the patient.

Preparation

1 Set the to "N".

2 Select the camera with the

FILTER SWITCHING KNOB

UPPER/LOWER SELECTOR SWITCH

of the base unit.

• In the case of the 35mm camera, check the film.

• In the case of the digi tal camera, ch eck the recording condition of the camera.

3 Press the .

Ex SWITCH

When the barrier filter sh ould be operated in the link condition with the , press the on the control panel.

FILTER SWITCH

The barrier filter will be inserted in a link operation with the .

PHOTOGRAPHY SWITCH

The link operation is classified into two types. You can select one type on the "SET MENU" display on the control panel. (1) is the factory default. Re fer to "F ILTER IN/OUT" on page 26 for the details o f the s etting ch ange method.

(1) Press the while "IN" is selected for "FILTER IN/OUT" on the

"SET MENU" display. The barrier filter is inserted when pressing the shutter first and it stays.

(2) Press the while "OUT" is selected for "FILTER I N/OUT" on the

FILTER SWITCH

"SET MENU" display. The barrier filter is inserted and removed each time you press the shutter.

PHOTOGRAPHY SWITCH

FILTER SWITCH

SPLIT

TIME

BASIC OPERATIONS

Page 40

4 Make the same a djustments, as 3~10 fo r "COLO R PHOTOGRAPHY ", and f ocus th e reti-

nal image properly.

5 Prepare for the intravenous injection of fluorescein.

How to take distinct fluorescein photographs:

If too much time is taken in giving the intrave nous injection, the fl uorescein will be diffused in the blood vessels and diagnostic quality photographs will not be possible.

6 Press the at the same time as an intrave-

nous injection of fluorescein is given to the patient.

• When the time r starts, it will beep every seco nd up to 20 seconds.

• Also, the will blink simultaneously every second until the timer goes OFF.

7 Press the .

When the is ON (white letters on b lack ba ckgrou nd), th e bar rier filte r is inserted into the photography unit in a link operation with the .

8 Press the .

TIME SWITCH

Ba (BARRIER) SWITCH

FILTER SWITCH

PHOTOGRAPHY SWITCH

Photography switch

SPLIT

PHOTOGRAPHY SWITCH

TIME

When you keep pressing the , it is possible t o take one (1) pic ture per second.

9 When you have finished photographing, press the to stop the timer.

BASIC OPERATIONS

PHOTOGRAPHY SWITCH

TIME SWITCH

Page 41

ICG FLUORESCEIN PHOTOGRAPHY (ONLY IN TYPE IA)

WARNING

NOTE

The basic operation is the same as "FAG PHOTOGRAPHY". The difference is tha t observation of the retina is done with the monitor.

1 Set the to "IA".

The ICG observation infrared camera is automatically selected.

FILTER SWITCHING KNOB

To avoid fire an d electric shock, do not put c ups or other containers with liquids near the instrument.

To ensure corre ct imaging, adjust the height of the automatic instrument table so that the patient ca n relax with his/her chin placed ce ntrally on the chinrest.

2 Make the same adjustments, as 3~10 for "COLOR PHOTOGRAPHY", and focus the reti-

nal image properly.

Select "AUTO" or " GREEN" with the (External fixatio n color selection) on the "SET MENU " display of the co ntrol panel to set the external fixation target color to "green". Near in frared light is used as the illumi nation light so urce. So, it is easy to fix the eye on the target by selecting a green fixation target.

FIX COLOR

The split lines and alignment bright spot are turned off.

3 Prepare for the intravenous injection of ICG fluorescein. 4 Press the at the same time as an intrave-

nous injection of fluorescein is given to the patient.

• The timer starts.

5 Press the .

When the fluorescein retinal image is fully bright:

• Press the switch of "APERTURE" (photography

aperture), and you can adjust focus easily.

6 Press the . 7 When you have finished photographing, press the to stop the timer.

TIME SWITCH

Ba (BARRIER) SWITCH

SMALL

PHOTOGRAPHY SWITCH

TIME SWITCH

SPLIT

TIME

BASIC OPERATIONS

Page 42

RED FREE PHOTOGRAPHY WITH GREEN FILTER (ONLY IN RELEVANT PRODUCTS)

WARNING

NOTE

1 Set the to "G".

FILTER SWITCHING KNOB

To avoid fire an d electric shock, do not put c ups or other containers with liquids near the instrument.

To ensure corre ct imaging, adjust the height of the automatic instrument table so that the patient ca n relax with his/her chin placed ce ntrally on the chinrest.

2 Take a picture according to the same procedure as "COLOR PHOTOGRAPHY".

AUTO FLUO (AUTO FLUORESCENCE) PHOTOGRAPHY (ONLY IN RELEVANT PRODUCTS)

WARNING

NOTE

To avoid fire an d electric shock, do not put c ups or other containers with liquids near the instrument.

To ensure corre ct imaging, adjust the height of the automatic instrument table so that the patient ca n relax with his/her chin placed ce ntrally on the chinrest.

In the type w ithout the AU TO FLUO filter, this filter can be installed as an option al accessor y. The intravenous injection of fluorescein is not done.

1 Set the to "AF".

FILTER SWITCHING KNOB

2 Take a picture ac cording to the same procedure as 2~9 for "FLUORESCEIN PHOTOG-

RAPHY".

3 Press the .

When the is "ON" (white letters on black background), the barrier filter is inserted into the photography unit by a link operation with the .

Ba (BARRIER) SWITCH

FILTER SWITCH

PHOTOGRAPHY SWITCH

BASIC OPERATIONS

Page 43

4 Press the .

PHOTOGRAPHY SWITCH

Photography switch

When you keep pressing the , it is possible t o take one (1) pic ture per second.

PHOTOGRAPHY SWITCH

BASIC OPERATIONS

Page 44

OBJECTIVE OPERATIONS

PHOTOGRAPHY BY INCLINATION AND SWINGING

To prevent the instrument from malfunctioning, do not perform inclina-

NOTE

tion and base swinging ( right and left) while h olding the camera connected to UPPER or LOWER mount.

1 When performing incli nation, loo sen the gradually until you can

move the .

INCLINATION HANDLE

2 Change the inclined angle of the instrument with the .

The allowable inclined angle is u p to 15° in the upp er directi on and up to 1 0° in the lo wer direction.

Inclination brake knob

Inclination handle

3 When performing swinging, loosen the on the .

INCLINATION BRAKE KN OB

INCLINATION HANDLE

SWING ARM LOCKING LEVER 2ND ARM

4 Push the side of the instrumen t lightly or pull the focus in g kno b to ch ange the swi ng angle

of the instrument. The allowable swing angle is up to 30° in the right and left direction.

Swing arm locking lever

5 Perform inclination and swinging until you get a desired position and then take a picture. 6 Perform alignment and photography for the eye according to the same procedure as

"COLOR PHOTOGRAPHY".

When performing inclination and swinging, the split lines and alignment bright spot should be regarded as standard.

OBJECTIVE OPERATIONS

Page 45

BLUE FILTER PHOTOGRAPHY

To ensure corre ct imaging, adjust the height of the automatic instru-

NOTE

The basic operation i s the same as "COL OR PHOTOGRAPHY". It is p ossible to photograph with the EXCITER filer as the blue filter by setting the to "OFF".

ment table so that the patient ca n relax with his/her chin placed ce ntrally on the chinrest.

FILTER SWITCH

1 Set the to "N". 2 Press the to "OFF" on the control panel. (Black letters will appear on

white background.)

The barrier filter is not linked with the shutter.

3 Press the .

FILTER SWITCHING KNOB

FILTER SWITCH

EXCITER SWITCH

4 Perform alignment and photography for the eye according to the same procedure as

"COLOR PHOTOGRAPHY".

Press the , and the barrier filter is inserted. Press it again, and the barrier filter retreats.

PHOTOGRAPHY WITH ALTERNATIVE FILTER (EXCLUDING TYPE IA)

The filter frames F1/F2, which can be installed/removed, are available. Set an alternative filter and take a picture. The bas ic operation is the s ame as "RED FREE PHO TOGRAPHY WITH GREEN FILTER" on page 40.

Ba (BARRIER) SWITCH

Use a filter which cuts off the ultraviolet rays and infrared rays.

Refer to "How to install the AUTO FLUO Ex filter" on page 63 for changing the filter.

OBJECTIVE OPERATIONS

Page 46

STEREO PHOTOGRAPHY

Allow the illumina tion light to come into the patient's pupil so that uniform b rightness can be kept on the eye. Then, take a picture using the . The basic operation is the same as "COLOR PHOTOGRAPHY".

STEREO LEVER

1 Align the patient's pupil and the instrument in proper positions.

Unless the instrumen t's optical axis aligns with the pupi l's optica l axis in the up-an d-down and right-and-left directions, flares will occur on one side. Be careful. Refer to "How to properly align the illumination light" on page 31. As flares easily appea r at an a ngle of c overag e of 50°, i t is s uggest ed that s tereo photo graphy is taken at an angle of coverage of 35° or 20°.

2 Affix the .

STEREO LEVER

STEREO STEREO

FREE FREE

3 Move the instrument gently until it stops in the right and left direction and press the

PHOTOGRAPHY SWITCH

Unless you mov e the ins trument unti l it stops, the effect of the stereo separ ation will be reduced.

(SHUTTER) in each position.

OBJECTIVE OPERATIONS

Page 47

INTERNAL FIXATION TARGET MOUNT (ONLY IN TYPE IA)

Internal fixation target mount (in "With split" type of Type IA)

1 Look into the optical finder and focus the retinal image. 2 Turn off the .

* If the is turned on, the knob will be

locked.

SPLIT SWITCH

SPLIT

TIME

3 Move the knob to guide the patient's eye.

The knob can be pushed and pulled and moved ba ck and forth. The fixation point will move left/right and ba ck/forth by operati ng the kn ob. Focus ing is not n ecessar y. Move it slowly to guide the patient's eye.

4 Perform alignment and photography for the eye according to the same procedure as

"COLOR PHOTOGRAPHY". * The fixation point will also be photographed with the retinal image. * When using the SPLIT lines, br ing the knob to the "OF F" position and then tu rn on the

SPLIT SWITCH SPLIT SWITCH

graphs cannot be taken. Be sure to set the knob to the "OFF" position.

Knob

. If the is ON without setting the knob to "OFF", photo-

Move back and forth.

Internal fixation target mount (in "Without split" type of Type IA)

• Operating procedures (1) Move the knob and guide the patient's eye with the fixation point, while checking

movement through the finder.

The knob moves in every direction. Up-and-down movement is used for o btaining proper foc us, while ri ght-andleft and back-and-forth movements are used to move the fixation point in the finder. Movement should be done slowly, in order not to confuse the patient when guiding the patient's eye.

• Along with the ret inal image, the fixation point is also recorded. (Present in the photograph)

Push and pull.

Fixation point

OBJECTIVE OPERATIONS

Page 48

BEFORE REQUESTING SERVICE

TROUBLESHOOTING

WARNING

To avoid electric s hoc k, do not attem pt di sa ss em bli ng, rebu il ding and/ or repairs on your own. Ask your dealer for repairs.

Do not remove the external co ve rs from th e mai n un it, c hi nres t uni t or

WARNING

power supply u nit ex cept for the lamp hous e co ve r. You m ay r eceive an electric shock.

When an error is found, review the Check List below. If, after following the instr uctions below, you still have pr oblems or if t he problem does not fall into any of the categories below, contact your dealer or TOPCON (see the back cover).

Check List

Problem Condition Check Page

Periphery of photograp hed image is dark.

Photographed image is flared all over. (The whole image is covered by light.)

Photographed image is whitened.

Photographed image has a dim white spot.

Photographic image is dark all over.

Illumination lamp does not turn on.

The external fixation target does not light/blink.

• Operation distance (alignment) is incorrect.

• Focusing is incorrect. Adjust focus. 35

• Patient's pupil is not large enough. Darken room and thoroughly dilate

• Operation distance (alignment) is incorrect.

• Focusing is incorrect. Adjust focus. 35

• Opacity in patient's eye Flare caused by opacity cannot be

• Patient blinked the moment the photograph was taken.

• Objective lens is stained. Clean lens. 60

• Eyelashes were in patient's eye the moment the photograph was taken. (Dim light was seen at screen bottom the moment the alignment was done.)

• Flash level is insufficient. Adjust the flash level with the flash cor-

• Xenon lamp set screw is loose. Fix xenon lamp securely. 55

• Xenon lamp has served its life. Change xenon lamp. 55

• Power save function is on. ("SLEEP" is indicated on the control panel.)

• Lamp terminal is loose. Refasten lamp terminal. 54

• Fuse is burnt. Change fuse. 57

• Lamp is burnt. Change lamp. 54

• Lamp house cover is not set. Set Lamp house cover properly. 55

• Fuse is burnt. Change fuse. 57

Adjust operation distance (alignment). 29

patient's pupil. Adjust operation distance (alignment). 29

removed. Take another picture. ---

Let patient open eye wider and take the picture again. If not wide enough, open the eyelid (i.e., Take picture holding eyelid open).

rection switch or flash selector switch.

Press photography switch and cancel power save function.

---

BEFORE REQUESTING SERVICE

Page 49

Problem Condition Check Page

Split lines cannot be seen. • SPLIT switch is set to OFF. Turn SPLIT line ON with Split switch. 15

Xenon lamp does not turn on.

Cannot get patient's pupil at center.

Nothing is recorded in external recording device.

The 35mm UPPER camera does not work.

Black dots are seen in the photographed image.

Flare cannot be eliminated at angle of coverage 50°.

Correct focus is not possible.

• Diopter compensation lens selector is not set to "0".

• Patient's pupil is not large enough. Darken room and thoroughly dilate

• The internal fixation target is not set to "OFF".

• Power save function is on. ("SLEEP" is indicated on the control panel.)

• Xenon lamp has served its life. Change xenon lamp. 55

• Fuse is burnt. Change fuse. 57

• Xenon lamp set screw is loose. Refasten lamp terminal. 54

• The NF switch on the base unit is pressed.

• Patient's face position is incorrect. (The chin and forehead are not correctly on the rests, or the patient faces sideways.)

• Patient's face height is incorrect. Adjust face height with Chinrest adjust-

• Anomaly in external recording device. Check power supply, settings, etc. ---

• Cable connections are incorrect. Check and correct cable connections. 21

• Power save function is on ("SLEEP" is indicated on the control panel.)

• The battery for camera is dead. Replace the battery. ---

• Fuse is burnt. Change fuse. 57

• UPPER/LOWER se lector swi tch on the base unit is not set to "UPPER".

• The 1× relay lens is not attached firmly. Attach the 1× relay lens firmly. 68

• The camera is not fixed properly to the 1× relay lens.

• The shading compensation cover is stained.

• Angle changing lever is not set at the "click" position.

• The microcoria mode is set because SMALL PUPIL switch is pressed.

• The patient's eye and instrument are not positioned correctly.

• The patient's eye is not fully dilated. Dilate the patient's eye fully. 30

• The optical finder dioptric power is not adjusted.

• Diopter compensation lens selector is not adjusted properly for the dioptric power of the patient's eye.

• The patient's eye is clouded due to cataract.

• The patient's eye is filled with tears. ---

• The patient's eye and instrument are not positioned correctly.

Return Diopter compensation lens selector to "0".

patient's pupil. Set the internal fixation target to "OFF". 45

Press photography switch and cancel power save function.

Press Flash selector switch to set the flash level.

Have patient keep his/her position correctly.

ing knob.

Press the photography switch to cancel power save function.

Press UPPER/LOWER selector switch to set it to "UPPER" .

Fix the camera on the 1× relay lens properly.

Perform cleaning with a blower, etc. ---

Turn Angle changing lever to the "click" position.

Press SMALL PUPIL switch to cancel the microcoria mode.

Set the patient's eye and instrument correctly.

Adjust the optical finder dioptric power. 28

Adjust Diopter compensation lens selector to the dioptric power of the patient's eye properly.

Set the patient's eye and instrument correctly.

---

BEFORE REQUESTING SERVICE

Page 50

Problem Condition Check Page

Operator cannot see the patient's eye.

Internal fixation target mount does not work.

Photograph of the retinal peripheries is dark.

• Illumination light is not ON. Adjust the illumination level. 33

• The objective lens cap is set. Remove the objective lens cap. ---

• BARRIER filter and EXCITER filter are set to "IN".

• Angle changing lever stops in the middle of the "click" process.

• Diopter compensation lens selector stops in the middle of the "click" process.

• SPLIT switch is not set to "OFF". Set SPLIT switch to "OFF". 15

• The distance between the patient's eye and the instrument is longer than the proper working distance.

Set BARRIER filter and EXCITER filter to "OFF".

Turn Angle changing lever to the "click" position.

Turn Diopter compensation lens selector to the "click" position.

Set the patient's eye closer to the instrument and then take a picture.

Photograph of retinal center is dark.

Photograph is influenced by overall flare.

V ague white dots are seen through the finder and also appear on the photograph.

• The pupil of the patient's eye is not fully dilated.

• The distance between the patient's eye and instrument is shorter than the proper working distance.

• SMALL PUPIL switch is pressed in angle of coverage 50°.

• Flash level is higher than necessary. Set the flash level to a low value. 33

• Tears or others adhere to the objec tive lens.

Dilate the patient's eye fully. 30

Set the patient's eye far away from the instrument and then take a picture.

Press SMALL PUPIL switch to cancel the microcoria mode.

Clean the objective lens. 60

BEFORE REQUESTING SERVICE

Page 51

ERROR CODE LIST

When "Err " ( mea ns an err or num ber ) is dis pl ayed i n the blinking status on th e co ntrol panel screen with a beep sound due to an operat ion error or a malfunct ion of the instrument, correct the error according to the table below.

Display Cause How to correct

Err0 The lamp house cover is opened. Close the lamp house cover firmly. Err1 Overcharge or undercharge of charge

voltage.

Err2 USB cable is not connected properly. Check the connection of the USB

Err3 FAG exciter filter does not work properly. Consult your dealer. Err4 Nothing (Not used) Nothing (NA) Err5 Photography aperture original point sensor

does not work properly.

Err6 Barrier filter motor sensor does not work

properly. Err7 Angle sensor does not work properly. Operate the angle changing lever again. Err8 The mirror and filter of the T V relay lens do

not work properly. Err9 Desired filter does not work properly. Operate the desired filter again. Err10 Illumination aperture does not work properly. Consult your dealer. Err1 1 Internal fixation target does not work

properly.

Consult your dealer.

connector.

Consult your dealer.

Move the internal fixation target to the "OFF" side.

When any other err or except "Err0", "Err2" , "Err7", "Err9" and "Err11" is displayed, co nsult your dealer.

BEFORE REQUESTING SERVICE

Page 52

SPECIFICATIONS AND PERFORMANCE

SPECIFICATIONS

• Resolving power of the fundus camera (Examined eyes 0D, on 35mm film surface)

• Angle of coverage : 50°/35°/20°

• Photography magnification : When the patient's eye is 0D, 35mm film is used:

50°: 1.84× 35°: 2.45× 20°: 4.28×

• Dioptric power adjustment range of optical finder : -6D ~ +5D

• Focus range to compensate the refraction trouble of the patient's eye :

0 : -10D ~ +6D

- : -23D ~ -9D

+: +5D~+23D

A : +22D ~ +41D

• Operating distance : 39.0mm

• Base movement

Back and forth : 80mm Right and left : 110mm Fine movement : 12mm Up and down : 30mm

• Up-and-down inclined angle : Upper 15°/Lower 10°

* The specifications and design are subject to change without prior notice for improvement.

ELECTRIC RATING

Source voltage : 100-120V/200-240V FREQ. 50-60Hz Power : 1500VA

unit : lp/mm

angle part radial tangential

50°

center 63 63

middle (r/2) 50 50

periphery (r) 40 40

35°

center 80 80

middle (r/2) 63 63

periphery (r) 50 50

20°

center 100 100

middle (r/2) 80 80

periphery (r) 63 63

Page 53

SYSTEM CLASSIFICATION

• Types of protection against electric shocks: This instrument is classified as Class I equipment. Class I equipme nt does not depend only on bas ic insulation for protection ag ainst electric shocks, but also provide s a means of connec tion to a prote ctive earth sy stem of facili ties so that metal parts that come into contact do not become conductive while the basic insulation is in failure.

• Degree of protection against electric shocks: Type B applied part Type B applied part is the applied part complying with the specified requirements of the Standard IEC 60601-1 to prov ide protection against electric shock , particularly regarding allowable LEAKAGE CURRENT.

• Degree of protection against harmful ingress of water: IPx0 The TRC-50DX has no protection against ingress of water. (The degree of protection against harmful ingress of water defined in IEC 60529 is IPx0.)

• Classificat ion ac cordin g to the met hod(s) of ste riliza tion o r disin fecti on recom mended by the manufacturer: not applicable. The TRC-50DX has no part to be sterilized or to be disinfected.

• Classification according to the degree of safety of application in the presence of a flammable anesthetic mixtu re wit h air or with ox ygen o r nitrou s oxi de: Equ ipmen t not su itable f or use in the presence of a flammable anesthetic mixture with air or with oxygen or nitrous oxide. The TRC-50DX should be used in environments where no flammable anesthetics and/or flammable gases are present.

• Classification according to the mode of operation: Continuous operation. Continuous opera tion i s the o peration under normal load f or an unlim ited pe riod, wi thout the specified limits of temperature being exceeded.

DIMENSIONS AND WEIGHT

Dimensions : 340mm (W) × 505mm (D) × 506~715mm (H) Weight : 35kg (only the instrument)

PURPOSE OF USE

To observe, take pictures or record pictures of the posterior segment of the eye through the pupil.

SPECIFICATIONS AND PERFORMANCE

Page 54

OPERATION PRINCIPLE

The observation lig ht emitted from the illumination opti cal system ill uminates the patient's eye (the eye to be photographed), and the image formed by the observation/photography optical systems is observed. By operating the photography switch on the instrument, the photography light is emitted from the illu mination optical syste m to illuminate the patient's eye. The image formed by the o bservation/ph otography o ptical syst ems is ph otographed a nd recorded by the 35mm film camer a (a prod uct in the mar ket) or an elect ronic photo graph y dev ice (a pr oduct in the market). The following fi lters, which can be installe d/removed, are built in the illumination optical s ystem: One is the Ex filter and this selects and transmits the light that excites the fluorescent coloring matter in FAG photography. The other is the ICG-Ex filter and thi s selec ts and transm its the infrared ligh t that excites the fluore scent coloring matter in ICG fluorescein photography. (The ICG-Ex filter is built in only Type IA.) The following fil ters a re bu il t i n the ob servation/photograp hy o pti cal systems: On e is th e Ba fi lter and this selects and filtrates the fluores cent wavele ngth in FAG photography. The other is the ICG-Ba filter and this selects and filtrates the fluorescent wa velength in ICG fluorescein photography. (The ICG-Ba filter is built in only Type IA.) The angle of coverag e can be changed by chan ging the lens located in the observation/photography optical systems. The illumination aperture located in the illumination optical system is changed in the li nk operation with the chan ge of the angle of coverag e. So, the illumination level is adjusted properly for photography. The photography ape rture located in the obs ervation/photo graphy optical s ystems is changed properly for photography according to the photography technique.

SPECIFICATIONS AND PERFORMANCE

Page 55

MAINTENANCE

CAUTION

To prevent damag e and injuries, do not install the instrument on an uneven, unsteady or sloped surface.

DAILY CHECKUPS

• Before using this instrument, always inspect it.

• Each time you use this instrument, clean it according to "CLEANING" on page 60.

• Dust is a formidable foe to the instrument.

• To ensure the production of fine images, care should be taken not to allow fingerprints and/or dirt on the objective lens.

• When not in use , be sure to cap the objective len s and cover the instrument with the dust cover.

• Before using the instrument, check if the objective lens is clean. If the objective lens is stained, clean it foll owing the inst ructi ons for "CLEA NING THE OBJE CTIVE LENS" on page

60.

• When not in use, always turn the OFF.

POWER SWITCH

ORDERING CONSUMABLES

• When ordering consumables and spare parts, contact your dealer or TOPCON (see the back cover) and tell them the article name, article code and quantity.

Article name Article code Article name Article code

Illumination lamp 40535 40200 Fuse 15A 125V (for 100V/120V) T24000086A Xenon lamp 40413 16200 8A 250V (for 230V) T24000085A Chinrest tissue paper 40310 4082 Dust cover 40488 1007

MAINTENANCE BY THE DEALER

Item Inspection interval Details

Cleaning each unit Within 12 months from

the last maintenance

Checking the operation Within 12 months from

the last maintenance

Checking photography Within 12 months from

the last maintenance

• Cleaning the external section

• Cleaning the optical system

• Cleaning the base unit

• Operation of the main body

• Operation of the switches

• Focus, flare, center ghost and dust

• Checking the xenon light intensity (by the special tool)

MAINTENANCE

Page 56

REPLACING THE ILLUMINATION LAMP

CAUTION

NOTE

• The service life of the illumination lamp is approx. 2000 hours. Replace the illumination lamp if it is burned out or becomes whitened.

1 Turn the OFF and unplug the power cord.

POWER SWITCH

To avoid electric shock, be sure to turn the power switch off and unplug the power cord before replacing the lamp.

To avoid burns, d o not replace the lam p with a new one imm ediately after it goes off. Allow time for it to cool.

To avoid whitening due to fingerprints, do not touch the lamp with bare fingers.

Since the lamp is not resistible to shocks, handle it with particular care. Do not drop.

2 Turn the control lever to raise the instrument body to its limit. 3 Remove the screw. Then, push the bottom of the l amp ho use cov er and pull it for ward to

remove it.

4 Loosen the two fixing screws and pull out the illumination lamp unit straight.

MAINTENANCE

Screw

Illumination lamp unit

Illumination lamp unit fixing screw

Page 57

5 Insert the new illuminat ion lamp straig ht and tighten s ecurely the two fix ing screws of the

illumination lamp.

6 Attach the lamp house cover by matching the projection at t he bottom part of the lamp

house cover with the groove of the body cover.

If the lamp house cov er is left unfixed, an error is displayed on the contro l panel and operations, includi ng phot ogr ap hy, cannot be done.

REPLACING THE XENON LAMP

CAUTION

NOTE

• The service life of the xenon lamp is approx. 10000 flashes. Replace the xenon lamp if it is burned out or becomes whitened.

1 Turn the OFF and unplug the power cord, then wait for more than 5 min-

utes for the natural electrical discharge.

POWER SWITCH

To avoid electric shock, be sure to turn the power switch off and unplug the power cord before replacing the lamp.

To avoid electric shock, do not replace the xenon lamp with a new one immediately after it goes off.

To avoid whitening due to fingerprints, do not touch the lamp with bare fingers.

Since the lamp is not resistible to shocks, handle it with particular care. Do not drop.

2 Push the bottom of the lamp house cover and pull it forward to remove it. 3 Remove the xenon lamp set screw by turning it counterclockwise with a coin.

Xenon lamp set screw

MAINTENANCE

Page 58

4 Slowly pull the xenon lamp straight out. 5 Insert the new xenon lamp straight in the receptacle until it reaches the end. 6 Tighten the xenon lamp set screw fully with a coin clockwise. 7 Attach the lamp house cover by matching the projection at t he bottom part of the lamp

house cover with the groove of the body cover.

If the lamp house cov er is left unfixed, an error is displayed on the contro l panel and operations, includi ng phot ogr ap hy, cannot be done.

MAINTENANCE

Page 59

REPLACING THE FUSE

To avoid electric shock when replacing the fuse, be sure to unplug the

WARNING

instrument before rem oving the fuse cover. Do not use ungrounded outlets. Do not plug in the instrument without the fuse cover.

WARNING

1 Turn the OFF and unplug the power cord.

POWER SWITCH

To avoid fire in the event of an instrument malfunction, use only the fuses that are marked with the label at the side of the fuse holder.

2 With a slotted screwdriver, press and turn the fuse holder counterclockwise and remove it.

Fuse holder

3 Replace the fuse with a new fuse of the same capacity.

4 With a slotted screwdriver, lightly press and turn the fuse holder clockwise and fasten it.

If the fuse has blown out, the whole instrument will not operate. Replace the fuse with a new one.

Changing the fuse

MAINTENANCE

Page 60

REFILLING THE CHINREST TISSUE PAPER

• When the chi nrest tis sue paper is used up , pull o ut the ch inrest tissue pins and r efill the tissue paper.

Chinrest tissue pin(s)

THE FAG FLUORESCEIN FILTER

CAUTION

NOTE

How to install the Ex (exciter) filter

1 Turn the ON ( ). 2 Set the to "N". 3 Press the . 4 Turn the OFF ( ).

POWER SWITCH

FILTER SWITCHING KNOB

Ex SWITCH

POWER SWITCH

To avoid electric shock, be sure to turn the power switch off and unplug the power cord before replacing the filter.

To avoid bur ns due to the hot fil ter u ni t, do no t r epl ace the filter with a new one immediately after the power goes off.

To prevent the glass fr om whitening due to fingerprints, do not tou ch the filter with bare fingers.

Since the filter is not resistible to shocks, handle it with particular care.

5 Turn the control lever to raise the instrument body to its limit. 6 Remove the lamp house cover screw. Then, push the bottom of the lamp house cover and

pull it forward to remove it.

7 Hold the grip of the filter frame with fingers and pull it out straight.

MAINTENANCE

Page 61

8 Install the filter into the filter frame.

It is not necessary to distinguish between the front and rear of the filter.

After installing the filter int o the filter frame, apply the adhesive to the outer circumference of the filter. Consult your dealer for the adhesive.

9 Insert the filter firmly.

Hold the filter mounting metal plate to prevent it from moving.

Be careful not to damage or stain the filter with fingerprint.

10 Set the lamp house cover in the reversed procedure of the removal.

How to install the Ba (barrier) filter

The method is the same a s "How to install the AUTO FLUO Ba filter" on page 64. The difference is that the filter frame display is "FA".

Be careful not to mistake it as "AF" (AUTO FLUO).

MAINTENANCE

Page 62

CLEANING

• Before using this instrument, always clean it.

CLEANING THE EXTERNAL COVER, CONTROL PANEL AND OTHERS

• To prevent the plastic parts of the instrument body from dis coloring

NOTE

and deteriorating, do not us e v ola til e solv en ts for clea ni ng, i ncl ud ing benzine, thinner, ether, gasoline, etc.

1 When the external cover and control panel become stained, clean them with a dry cloth. 2 If the external cover is badly stained, prepare a tepid solution of neutral detergent for kitch-

enware. Moisten the cloth with the aforementioned solution and wring it thoroughly. Then wipe the cover with the cloth.

CLEANING THE PARTS WHICH COME INTO CONTACT WITH THE P ATIENT

• Stain on forehead rest and chinrest Mix the neutral detergent for kitchenware in tepid water. Moisten the cloth with the aforementioned solution and wring it thoroughly. Then, wipe the forehead and chinrest with the cloth.

CLEANING THE OBJECTIVE LENS

• To check the objective lens, set the to "ON" (I) and turn the illumination lamp ON. Darken the room. Turn the to adjust the light intensity. Examine the objective lens diagonally from the front. The lens condition can be seen clearly.

How to wipe the objective lens

The wiping method is different from the conventional coated lens. The resistance against wiping is very low and the lens is smooth.

• When dust and dirt adhere to the surface: Blow them off using a blower. Be careful to prevent the blower end from touching the objective lens.

• When the stain is simple such as dust, tears or saliva:

ILLUMINATION LEVEL KNOB

POWER SWITCH

1 Breathe toward the objective lens and wipe it with a lens cleaning paper carefully. 2 If your lens cleaning paper is dirty, replace it with a clean one and repeat step 1. 3 Repeat steps 1 and 2 until no stain is seen on the lens.

CLEANING

Page 63

• When the stain is persistent:

1 Moisten a lens cleaning paper with reagent ethanol properly. Wipe the objective le ns with

the lens cleaning paper by rubbing lightly.

2 If your lens cleaning paper is dirty, replace it with clean one and repeat step 1. 3 Repeat steps 1 and 2 until no stain is seen on the lens. 4 Finally, wipe the objective lens with a dry lens clean ing paper which is not moi stened with

solvent until it is clean. It is permitted to wipe the lens after breathing on it.

Don't use the following methods because the lens can be damaged.

• Wiping the lens by grasping with fingernails

• Using a lens cleaning paper wound around a hard tool (for example, a metallic tool)

Use a soft lens cleaning paper without fiber.

• For example, BEMCOT (Asahikasei)

Don't let any strong-alkaline liquid adhere to the objective lens. If such liquid adheres to the lens, immediately wipe it off.

If it is difficult to r em ov e a stain fr o m the obj ec ti ve len s, co ntact y our d eal er or TOPC ON (see the back cover).

CLEANING THE LENS WHICH IS SEEN IN UPPER MOUNT

Dust or other impurit ies adhering to th e lens, which is s een in the mount, may b e reflected in the retinal images photographed. In this case, clean the lens by the following method.

Cleaning the outside of lens

1 Blow dust or other impurities using a blower. 2 If stain is persistent, wipe the lens with a lens cleaner.

a) Prepare a mixed solution with a ratio of 2 (ethyl alcohol) to 8 (ether). b) Moisten a clean gauze (already washed and dried) with this solution. By using this

gauze, gently wipe the lens in a circular direction from its center to outside. c) If stain still remains, wipe the lens repeatedly. If you wipe or rub the dirty lens vi ol entl y, its surface will be damaged. During cleaning, be careful not to damage the mask.

Cleaning the inside of the lens

1 If the inside of the lens i s stained, remove the shad ing compensati on cover screw with a

slotted screwdriver. Remove the shading compensation cover and then clean the lens.

CLEANING

Page 64

OPTIONAL ACCESSORIES

The optional accessories for TRC-50DX enable a variety of photography.

Ensure that the 35mm camera is installed firmly by fastening the

CAUTION

35mm camera body locking lever. If installed loosely, the camera may fall off, resulting in severe damage to the unit and bodily injury.

When installing accessories, secure them firmly by fastening the accessory locking lever. If installed loosely, the accessories may fall off, leading to bodily injury.

CAUTION

NOTE

1× relay lens adapter OR-2

Used when installing the 35mm film camera (a product in the market) onto the UPPER mount.

TV relay lens adapter

Refer to "Video relay lens list" on P.70. Used when installing the commercial electronic photography device onto the UPPER mount.

TM conversion adapter MD-2

Used when installing the commercial electronic photography device onto the LOWER mount.

AUTO FLUO filter attachment AF-1

This set consists of the exciter filter and barrier filter for auto fluorescence photography.

To avoid injury, remove the accessor ies of the UPPER mount befo re carrying the instrument. The instrument may tip over.

Before installing/re movin g the ac cessorie s, lock the incl inatio n mechanism. If removing an acce ss ory wi thou t l oc king it, the opt ic al uni t m ov es up . Moreover, when installing an accessory, the optical unit moves and so it is dif ficult to install it.

Internal fixation target mount

Used in the "Without split" type.

OPTIONAL ACCESSORIES

Page 65

OPTIONAL ACCESSORY MOUNTING/DETACHING METHODS

How to install/remove the 1× relay lens adapter/video relay lens adapter

Mounting method

1 Lock the base fixing lever and the inclination brake knob. 2 Turn the UPPER mount locking lever to remove the cap. 3 Remove the cap from the optional accessory and install it onto the instrument body.

Stand next to the instrument body and install the optional acc essory straight from above with both hands. Turn the UPPER mount locking lever to fix it.

4 Install the commercial 35mm film camera or electronic photography device. 5 Connect the cables.

Detaching method

1 Remove the lens adapter in the reversed procedure of "Mounting method".

How to install/remove the TM conversion adapter

Mounting method

1 Lock the base fixing lever and the inclination brake knob. 2 Turn the LOWER mount locking lever to remove the cap. 3 Install the commercial electronic photography device onto the TM conversion adapter.

Then, install the TM conversion adapter onto the LOWER mount. Turn the LOWER mount locking lever to fix it.

4 Connect the cables.

Detaching method

1 Remove the TM conversion adapter in the reversed procedure of "Mounting method".

OPTIONAL ACCESSORIES

Page 66

Installing/removing the AUTO FLUO filter attachment

CAUTION

NOTE

How to install the AUTO FLUO Ex filter

1 Turn the OFF ( ) and unplug the power cord.

POWER SWITCH

To avoid electric shock, be sure to turn the power switch off and unplug the power cord before replacing the filter.

To avoid bur ns due to the hot fil ter u ni t, do no t r epl ace the filter with a new one immediately after the power goes off.

To prevent the glass fr om whitening due to fingerprints, do not tou ch the filter with bare fingers.

Since the filter is not resistible to shocks, handle it with particular care.

2 Turn the control lever to raise the instrument body to its limit. 3 Remove the lamp house cover screw. Then, push the bottom of the lamp house cover and

pull it forward to remove it.

4 Set the to "F1".

At this time, the filter frame "F1" is positioned at the lowest section of the turret.

The oil adheres on the outer circumference of the turret. Do not touch it.

5 To take out the filter frame easily, turn the in approx. 45° counter-

clockwise.

FILTER SWITCHING KNOB

6 Hold the projection of the filter frame with r adio plie rs,

etc. and pull it out straight.

7 Hold the projection of the frame on th e AUTO FLUO

Ex filter (optional accessory) with radio pliers, etc. and put it into the turret.

It is not necess ary to distinguish between the front and rear of the filter.

Set the filter frame to the innermost correctly. Turn the to make sure that it is not caught by anything.

FILTER SWITCHING KNOB

Be careful not to damage or stain the filter with fingerprint.

8 Set the lamp house cover in the reversed procedure of the removal.

OPTIONAL ACCESSORIES

Page 67

How to install the AUTO FLUO Ba filter

1 Turn the OFF ( ) and unplug the power cord.

POWER SWITCH

2 Remove the barrier filter cover screw. Then, remove the barrier filter cover. 3 Turn the turret by fingers. Hold the filter frame showing "F" with your fingers or radio pliers

and pull it out straight.

4 Hold the frame of the AUTO FLUO Ba fil ter (opti onal acce ssor y) with yo ur fing ers or radio

pliers and put it into the turret.

It is not necessary to distinguish between the front and rear of the filter.

Set the filter frame to the innermost c orrectly. Tu rn the turret wit h your fingers to make sure that it is not caught by anything.

Be careful not to damage or stain the filter with fingerprint.

Be careful not to touch the wires.

5 Set the barrier filter cover in the reversed procedure of the removal.

Check after installing the AUTO FLUO filter attachment

1 Plug in the power cord and turn the ON ( ). 2 Set the to "F1".

FILTER SWITCHING KNOB

POWER SWITCH

3 Make sure that the yellow illumination light is emitted from the objective lens. 4 Press the to make su re that the b ackgro und which i s seen t hrough

the optical finder is dark.

Ba (BARRIER) SWITCH

OPTIONAL ACCESSORIES

Page 68

How to install the internal fixation target mount

(for "without split" type)

• Nomenclature

Fixation point

Protective cap

Fixation target

• How to attach the Internal Fixation Target (1) Take off the cov er of t he in ternal fixati on target mount

on the main body of retinal camera.

(2) Take off the protective cap, align the fixation target

with pin of the internal fix ati on target mount and insert straightly into the main body. In the above case, great care must be exercised because the fixation po int is slender and easily bent. For attachment, the fixation point sh ould be pu lled out as fully as possible, and the mount should be screwed in slowly and carefully, with the fixation point maintained vertically. And, until the locking cap is attached, the fixation point should not be moved.

Knob

Locking cap

Cove

(3) Tighten the locking cap.

OPTIONAL ACCESSORIES

Page 69

ACCESSORY LENS CLEANING METHODS

Dust or other impurit ies adhering to th e lens, which is s een in the mount, may b e reflected in the retinal images photographed. In the presence of such impurities, the lens must be cleaned according to the methods specified below.

Cleaning the outer side of the lens:

1 Blow off dust or other impurities with a hand blower. 2 If stain is persistent, wipe it off with a lens cleaner.

a) Prepare a mixed solution at the ratio of 2 (ethyl alcohol) to 8 (ether). b) Moisten a clean gauze ( already washed an d dried) with th e mixed solution. B y using

this gauze, gently wipe the lens in a circular direction from its center to outside.

c) If stain still remains, wipe the lens repeatedly. If you wipe or rub the dirty lens vi ol entl y, its surface will be damaged. During cleaning, be

careful not to damage the mask.

Cleaning the inside of the lens:

1 Loosen the machi ne scr ews (3 pc s.) f ro m the mou nt and pu ll the m ount s tr aig ht out in the

arrow direction. In the case of the TV relay lens adapter, one of the three machine screws is located inside the side cover.

2 Blow off dust or other impurities with a hand blower or wipe it with a lens cleaner.

When cleaning the TV relay lens adapter, the cover glass on the lens must be cleaned.

3 Reinstall the mount.

Insert the mount straight, so that the mount positioning pin aligns with the slot. Tighten the machine screws.

Side cover

Screw

Mount

Lens

Mask

Mount positioning pin

Slot

OPTIONAL ACCESSORIES

Page 70

1× RELAY LENS ADAPTER OR-2

Fixing ring

35mm camera body locking lever

35mm camera mount

Mount

Mount cap

Connector

Photography method

1 Set the to "UPPER" on the control panel.

UPPER/LOWER SELECTOR SWITCH

Cap

2 Perform alignmen t and photography for retin a in the same procedure as "COLOR PHO-

TOGRAPHY" or "FAG PHOTOGRAPHY".

• Size..................................... 106 (W) × 140 (D) × 141 (H) mm

Set the shutter speed to "1/30 sec." for the 35mm film camera (a product in the market).

OPTIONAL ACCESSORIES

Page 71

TV RELAY LENS ADAPTER

• Precautions and suggestions to use

Be careful not to use an improper video camera.

Cap

Mount

Cap

Video camera mount

• How to attach the video camera

See the instruction manual for video camera.

Cap

Mount

Cap

Connector

• Cable connection

Insert the cable into the cable holder on the main body.

• Do not pull up the cable holder.

• When connecti ng the cable, assure a sufficient length so that the oper ation of retinal c amera is not limited.

• The cable hol der position is adjustable wi th the quantity of cables.

How to adjust

Remove the tilting cover (1 lower screw). Loosen the screw of the cable holder for adjusting.

Screw

Cable holde

Tilting cover

OPTIONAL ACCESSORIES

Page 72

• How to take a picture

1 Set the to " UPP ER " on

UPPER/LOWER SELECTOR SWITCH

the control panel.

2 Perform alignment and photography for retina in the

same procedure as "COLOR PHOTOGRAPHY", "FAG PHOTOGRAPNY" or "ICG FLUORESCEIN PHOTOGRAPHY".

Press the on the joystick, an d the ret inal i mage is reco rded in the

PHOTOGRAPHY SWITCH

image recorder.

Set the shutter spee d to "1/30 sec." f or the F moun t single-lens r eflex digital came ra (a product in the market).

TV relay lens list

Model

TL-207 C, G, F F F 85×124×234 TL-208 C, G, F Bayonet B 85×145×238 TL-209 F, G, (I), A C D 85×140×236 TL-210D C G, F, (I), A Bayonet C B D 85×173×238 TL-211 C, G, F F F 85×123×228 TL-230T C G, F, I, A I Bayonet C C B D A 85×226×255 TL-231 I C A 85×161×246 TL-232D C, G, F I Bayonet C B A 85×185×238 TL-233D I G, F, I, A C C A D 85×173×246 TL-234D C, G, F, I I C C C A 85×185×234 TL-235T C G, F, I, A I F C C F D A 85×226×255 TL-236D C, G, F I F C F A 85×198×228

Type of photography (*1) Mount Video camera (*2) Size (mm)

1PORT 2PORT 3PORT 1PORT 2PORT 3PORT 1PORT 2PORT 3PORT

LOCK LOCK

FREE FREE

W×D×H

(*1) (*2)

C COLOR A 1/2 C mount single-plate infrared camera G GREEN (RED FREE) B 1/2 three-plate bayonet mount F FAG C 1/2 C mount three-plate type

I ICG D 2/3 C mount single-plate type

A AUTO FLUO F F mount single-lens reflex digital camera

Consult your dealer for the camera.

One electronic photography Two electronic photography Three electronic photography device can be connected. devices can be connected. devices can be connected.

1PORT

2PORT 2PO RT

1PORT

3POR

OPTIONAL ACCESSORIES

Page 73

REFERENCE MATERIAL

SHAPE OF PLUG

Country Voltage/frequency Shape of plug

Mexico 110 V/ 50Hz Type C&E Argentina 220V/60Hz Type A Peru 22 0V/ 60Hz Type A Venezuela 110V/50Hz Type C&E Bolivia & Paraguay

Chile 22 0V/ 60Hz Type A Colombia 110V/50Hz Type C Brazil 220V/60Hz

Ecuador 110V/50Hz Type C&E USA 120V/60Hz Type A (Hospital Grade) Canada 120V/60Hz Type A (Hospital Grade)

220V/60Hz

127V/60Hz

Type A (Most common) Type H (Infrequently)

Type A Type C

SYMBOL

Symbol IEC Publicatio n Description Description (French)

60417-5032 Alternating current Courant alternatif

60348

60417-5008

60417-5007

60878-02-02 Type B applied part Partie appliquée du Type B

Attention, consult accompanying documents

Off (power: disconnection from the mains)

On (power: connection of the mains)

Attention, consulter les documents d'accompagnement

Éteint (courant: coupure avec le secteur)

Allumé (courant: raccordement sur le secteur)

REFERENCE MATERIAL

Page 74

USABLE AUTOMATIC INSTRUMENT TABLE

Automatic instrument table AIT-15S

Because the instrum ent height can be adjust ed to the desi red positio n, you can take a pictu re more easily.

Specifications

• Dimensions ..................510(W) × 490(D) mm

• Table height..................600 ~ 820mm

• Table size .....................490 × 500mm

• Weight..........................Approx. 23kg (only the instrument body)

• Power consumption .....270VA

• Maximum loadage........50kg

REFERENCE MATERIAL

Page 75

ELECTROMAGNETIC COMP ATIBILITY

This product conforms to the EMC standard (IEC 60601-1-2 : 2001). a) MEDIC AL ELECTRICAL EQUIPMENT needs special precautions regarding EMC and ne eds

to be installed and put into serv ice acc ording to th e EMC in format ion pr ovide d in the A CCOMPANYING DOCUMENTS.

b) Portable and mobile RF communications equipment can affect MEDICAL ELECTRICAL

EQUIPMENT.

c) The use of ACCESSORIES, transducers and cables other than those specified, with the

exception of transducers and cables sold by the manufacturer of the EQUIPMENT or SYSTEM as replacement parts for internal components, may result in increased EMISSIONS or decreased IMMUNITY of the EQUIPMENT or SYSTEM.

d) The EQUIPMENT or SYSTEM sh ould not be used adjacent to or stacked with other equip-

ment. If adjacent or stacked use is necessary, the EQUIPMENT or SYSTEM should be observed to verify normal operation in the configuration in which it will be used.

e) The use of the ACCESSORY, transducer or cable with EQUIPMENT and SYSTEMS other than

those sepecified may resul t in increased EMISSION or dec reased IMMUNITY of the EQUIPMENT or SYSTEM.

Item Article code Model No. Length (m)

CBL_D1X-TRC-D15 445104200 — 5.0 CABLE_VS200-D2 445102300 — 1.0 CBL_D1X-TRC-VS2 445105200 — 5.0

Guidance and manufacturer's declaration - electromagnetic emissions

The TRC-50DX is intended for use in the electromagnetic environment specified below. The customer or th e user of the TRC-50DX should assure that i t is used in such an env ironment.

Emissions test Compliance Electromagnetic environment - guidance

The TRC-50DX uses RF energy only for its internal RF emissions CISPR 11

RF emissions CISPR 11

Harmonic emissions IEC61000-3-2

Voltage fluctuations/ flicker emissions IEC61000-3-3

Group 1

Class B

Class A

Complies

function. Therefore, its RF emissi ons are very low and

are not likely to cause any interference in nearby elec-

tronic equipment.

The TRC-50DX is suitable for use in all establish-

ments, including domestic establishments and those

directly connected to the public low-voltage power sup-

ply network that sup plies buildings used for d omestic

purposes.

REFERENCE MATERIAL

Page 76

Guidance and manufacturer's declaration - electromagnetic immunity

The TRC-50DX is intended for use in the electromagnetic environment specified below. The customer or th e user of the TRC-50DX should assure that i t is used in such an environment.

Immunity test

IEC 60601

test level

Compliance

level

Electromagnetic environment

- guidance

Floors should be wood, conElectrostatic discharge (ESD) IEC 61000-4-2

± 6 kV contact ± 8 kV air

crete or ceramic tile. If floors are

covered with synthetic material,

the relative humidity should be

at least 30%.

Mains power quality should be

that of a typical commercial or

hospital environment.

Mains power quality should be

that of a typical commercial or

hospital environment.

Mains power quality should be

that of a typical commercial or

hospital environment. If the user

or the TRC-50DX requires con-

tinued operation during power

mains interruptions, it is recom-

mended that the T RC-50DX be

powered from an uninterruptible

power supply or battery.

Power frequency magnetic

fields should be at levels char-

acteristic of a ty pical location in

a typical com mercial or hos pital

environment.

Electrical fast transient/burst IEC 61000-4-4

Surge IEC 61000-4-5

Voltage dips, short interruptions and Voltage variations on power supply input lines IEC 61000-4-11

Power frequency (50/60 Hz) magnetic field IEC 61000-4-8

± 2 kV for power supply lines

± 1 kV for input/output lines

± 1 kV differential mode

± 2 kV common mode

<5% U

(>95% dip in Ut) for 0.5 cycle 40% U

(60% dip in Ut) for 5 cycles 70% U

(30% dip in Ut) for 25 cycles <5% U

(>95% dip in Ut) for 5 sec

± 2 kV for power supply lines

± 1 kV for input/output lines

± 1 kV differential mode

± 2 kV common mode

<5% U (>95% dip in Ut) for 0.5 cycle 40% U (60% dip in Ut) for 5 cycles 70% U (30% dip in Ut) for 25 cycles <5% U (>95% dip in Ut) for 5 sec

3 A/m 3 A/m

NOTE U

is the a.c. mains voltage prior to application of the test level.

REFERENCE MATERIAL

Page 77

Guidance and manufacturer's declaration - electromagnetic immunity

PPP

The TRC-50DX is intended for use in the electromagnetic environment specified below. The customer or th e user of the TRC-50DX should assure that i t is used in such an env ironment.

Immunity test IEC 60601

test level

Compliance

level

Electromagnetic environment -

guidance

Portable and mobile RF communications equipment should be used no closer to any part of the TRC-50DX, including cables, than the recommended separation distance calculated from the equation applicable to the frequency of the transmitter.

Conducted RF IEC 61000-4-6

Radiated RF IEC 61000-4-3

3 Vrms 150kHz to 80MHz

3 V/m 80MHz to 2.5GHz

3 V

3 V/m

Recommended separation distance

d = 1.2

d = 1.2 80MHz to 800MHz d = 2.3 800MHz to 2.5GHz

where P is the maximum output power rating of the transmitter in watts (W) according to the tr ansmitte r manufactu rer and d is the recommended separation distance in meters (m).

Field strengths from fixed RF transmitters, as determined by an electromagnetic site survey , ance level in each frequency range.

should be less than the compli-

Interference may occur in the vicinity of equipment marked with the following symbol:

NOTE 1 NOTE 2

abField 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 electromagnetic environment due to fixed RF transmitters, an electromagnetic site survey should be considered. If the measured field strength in the location in which the TR C-50 DX is use d exce eds the ap plica ble RF comp li ance level above, the TRC50DX should be observed to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as reorienting or relocating the TRC-50DX.

Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.

At 80 MHz and 800 MHz, the higher frequency range applies. These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from structures, objects and people.

REFERENCE MATERIAL

Page 78

Recommended separation distance between

PPP

portable and mobile RF communications equipment and the TRC-50DX

The TRC-50DX is intended for use in an electromagnetic environment in which radiated RF disturbances are contro lled. Th e custo mer or the user of the TRC- 50DX ca n help pre vent el ectromagnetic interference by maintaining a minimum distance between portable and mobile RF communications e qui pme nt (t rans mit ter s) a nd the T RC-50D X as recommende d b elo w, according to the maximum output power of the communications equipment.

Separation distance according to frequency of transmitter

Rated maximum output

power of transmitter

0.01 0.12 0.12 0.23

0.1 0.38 0.38 0.73 1 1.2 1.2 2.3

10 3.8 3.8 7.3

100 12 12 23

For transmitters r ated at a max imum output powe r not list ed ab ove, the rec ommen ded 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 wa tts (W) according to the transmitter manufacturer.

150kHz to 80MHz

d = 1.2

80MHz to 800MHz

d = 1.2

800MHz to 2.5GHz

d = 2.3

NOTE 1 NOTE 2

At 80 MHz and 800 M Hz, the separation distance for the higher fr equency range applies. These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from structures, objects and people.

REFERENCE MATERIAL

Page 79

RELATION BETWEEN SETTIN G OF ILLUMINATION/ FLASH LEVEL AND MAXIMUM RADIANCE

When the maximum radiance is "1", t he r atio of radiance is show n be low i n setting of illuminat ion / flash level.

Illumination level (Observation light) Flash level (Photographing light)

Indicated set

value

00.00 90.03 1 0.02 12 0.04 2 0.03 18 0.06 3 0.04 21 0.07 4 0.06 25 0.08 5 0.10 30 0.10 6 0.15 36 0.12 7 0.20 43 0.14 8 0.25 50 0.17 9 0.35 62 0.21

10 0.50 75 0.25

11 0.70 86 0.29

12 1.00 100 0.33

Level ratio

Indicated set

value

125 0.42 150 0.50 175 0.58 200 0.67 250 0.83 300 1.00

Level ratio

Ratio of maximum level in photography conditions

Conditions Level ratio Color photography 20°, SMALL PUPIL 1.00 Color photography 20° 0.65 Color photography 35°/50°, SMALL PUPIL 0.56 Color photography 35°/50° 0.36 FAG photography, SMALL PUPIL 0.04 FAG photography 0.03

Refer to P.33 for setting the illumination level indication, and P.24 for setting the flash level indication.

RELATION BETWEEN SETTING OF ILLUMINATION/ FLASH LEVEL AND MAXIMUM RADIANCE

Page 80

INFORMATION ABOUT THE OPTICAL RADIATION HAZARD FOR THE USER

Relative spectral output of this instrument

Relative radiance

300 400 500 600 700 800 900 1000 1100

TRC-50DX Observation Light

Wavelength (nm)

Photochemical light source radiance of this instrument

A (without crystalline lens) : 6.4 mW/(cm

B (with crystalline lens) : 6.2 mW/(cm

Meaning of L

A and LB

2 2

·sr)

Halogen

• Spectrally weighted photochemical radiances LB and LA give a measurement of the potential that exists for a beam of li ght to cause photochemic al hazard to the retina. L surement for eyes in which the cry stalline len s is in plac e. L

A gives this measurem ent either for

B gives the mea-

eyes in which the c rystalli ne l ens h as been removed (aphak es) and ha s n ot b een replaced by a UV-blocking lens or for eyes of very young children.

• The value stated for TRC-50DX gives a measurement of hazard potential when the instrument is operated at maximu m intensity and maximum a perture. Values of L

B or LA over 80mW/(cm

·sr)

are considered high for beams which wholly fill a dilated pupil.

• Because prolonged intense light exposure can damage the retina, the use of the device for ocular examinatio n should not be unneces sarily prolonged, and the brightness setting s hould not exceed what is needed to provi de c lear visua li za tion of the targe t str uct ure s. Th is de vi ce sho uld be used with filter that eliminate UV radiation (<400 nm) a nd, whenever possible, filters that eliminate short-wavelength blue light (<420 nm).

• The retinal exposure dose for a photochemical hazard is a product of the radiance and the exposure time. If the value of radiance were reduced in half, twice the time would be needed to reach the maximum exposure limit.

• While no acute o ptical radiation haz ards have been ide ntified for fundus ca meras, it is reco mmended that the in tensity of light directed i nto the patien t's eye b e limited t o the m inimum lev el which is necessa ry for diagnosis. Infants, apha kes and persons with disea sed eyes will be at greater risk. The risk may also be increased if the person being examined has had any exposure with the same ins trument or any othe r opthal mic instr uments using a visible light s ource dur ing the previous 24 hours.This will apply particularly if the eye has been exposed to retinal photography.

INFORMATION ABOUT THE OPTICAL RADIATION HAZARD FOR THE USER

Page 81

Please provide the following information when contacting us regarding question s about this instrument:

• Model name: TRC-50DX

• Serial No.: This is described on the rating nameplate on the right

side of the power supply unit.

• Period of use: Please inform us of the date of purchase.

• Defective condition: Please provide us with as much detail as possible on the

problem.

RETINAL CAMERA TRC-50DX

INSTRUCTION MANUAL 2006 version (2006.07-50TH ) Date of issue: Aug. 1st, 2006

Published by TOPCON CORPORATION

75-1 Hasunuma-cho, Itabashi-ku, Tokyo, 174-8580 Japan.

Page 82

RETINAL CAMERA

TRC-50DX

75-1 Hasunuma-cho,Itabashi-ku,Tokyo,174-8580 Japan.

Phone:3-3558-2520 Fax:3-3960-4214 www.topcon.co.jp

7 West Century Road,Paramus,New Jersey 07652,U.S.A. Phone:201-261-9450 Fax:201-387-2710 www.topcon.com

OPCON MEDICAL SYSTEMS, INC

(

European Representative)

ssebaan 11, 2908 LJ Capelle a/d IJssel,THE NETHERLANDS Phone:010-4585077 Fax:010-4585045 www.topcon.eu

OPCON EUROPE B.V.

Giesserallee 31-33 D-47877 Willich GERMANY Phone:02154-8850 Fax:02154-885111 www.topcon.de Med@topcon.de

TOPCON DEUTSCHLAND G.m.b.H.

110 Provencher Avenue, Boisbriand, QC J7G 1N1 CANADA Phone:450-430-7771 Fax:450-430-6457 www.topcon.ca

TOPCON CANAD A INC.

HEAD OFFICE:Frederic Mompou 5, ED. Euro 3, 08960,Sant Just Desvern Barcelona,SPAIN Phone:93-4734057 Fax:93-4733932 www.topconesp.com MADRID OFFICE:Avenida Burgos, 16E,1˚ 28036,Madrid,SPAIN Phone:91-302-4129 Fax:91-383-3890

TOPCON ESPAÑA S.A.

Neongatan 2 S-43151 Mölndal, SWEDEN Phone:031-7109200 Fax:031-7109249 info@topcon.se

TOPCON SCANDINAVIA A.B.

Topcon House,Kennet Side,Bone Lane,Newbury,Berkshire RG14 5PX United Kingdom Phone:01635-551120 Fax:01635-551170

TOPCON (GREAT BRITAIN) LTD.

lk 192 Pandan Loop, #07-01 Pantech Industrial Complex, SINGAPORE 128381 Phone:62780222 Fax:62733540 www.topcon.com.sg

OPCON SOUTH ASIA PTE.L TD.

Excella Business Park Block C,1st Floor,Jalan Ampang Putra,Taman Ampang Hillir, 55100 Kuala Lumpur,MALAYSIA Phone:03-42701192 Fax:03-42704508

TOPCON INSTRUMENTS (MALAYSIA) SDN.BHD.

77/162 Sinn Sathorn Tower, 37th Fl.,Krungdhonburi Rd.,Klongtonsai, Klongsarn, Bangkok 10600,THAILAND Phone:440-1152~7 Fax:440-1158

TOPCON INSTRUMENTS (THAILAND) CO.,LTD.

F Yooseoung Bldg., 1595-3, Seocho-Dong, Seocho-Gu, Seoul, 137-876 KOREA Phone:02-2055-0321 Fax:02-2055-0319 www.topcon.co.kr

OPCON KOREA CORPORATION

/F.,Meeco Industrial Bldg.,No.53-55 Au Pui Wan Street,Fo Tan Road,Shatin,N.T.,Hong Kong Phone:2690-1328 Fax:2690-2221 E-mail:sales@topcon.com.hk

OPCON OPTICAL (H.K.) L TD.

lock No.9, Kangding Street Beijing Economic-Technological Development Area, Beijing,100176,CHINA Phone:10-6780-2799 Fax:10-6780-2790

OPCON CORPORA TION BEIJING OFFICE

.O.Box 70-1002 Antelias,BEIRUT-LEBANON Phone:961-4-523525/523526 Fax:961-4-521119

OPCON CORPORA TION BEIR UT OFFICE

/O Atlas Medical FZCO., P.O.Box 54304 C-25, Dubai Airport Free Zone, UAE Phone:971-4-2995900 Fax:971-4-2995901

OPCON CORPORA TION DUBAI OFFICE

89, rue de Paris 92585 Clichy, Cedex,FRANCE Phone:01-4106-9494 Fax:01-4739-0251

TOPCON S.A.R.L.

(

European Sole Sales Company)



ssebaan 11, 2908 LJ Capelle a/d IJssel,THE NETHERLANDS Phone:010-4585077 Fax:010-2844940 www.topcon.eu

OPCON EUROPE MEDICAL B.V.

ITALY OFFICE:Via Dell' Industria n.60, 20037 Paderno Dugnano, (Milano), ITALY Phone:02-61-25-583 E-mail:info.topconitaly@tiscali.it www.topcon.it

40594 9207

Printed in Japan 0607-50TH