Kowa RB-525-B04 User Manual

Auto Refkeratometer

Operations Manual

RB-525-B04

INTRODUCTION

This manual contains information on correct handling and operational procedures as well as safety consideration pertinent to KW-2000 Before carrying out measurement and/or adjustment, read the instructions thoroughly so that effective operation is ensured. As this constitutes an important reference and user guide, keep it on hand at all times.

NOTE

 The information contained in this manual is subject to change without notice.  While reasonable efforts have been made in the preparation of this document to ensure its accuracy,

you should contact your local distributor immediately, if any quarries arise due to editorial errors or omissions etc.

 If you find any imperfect collating or missing pages, contact your local distributor for replacement.

SAFETY CONSIDERATION

KW-2000 is a Class I, Type B medical instrument as well as LED Class 2 product. This instrument complies with Medical Device Directive 93/42/EEC.

A great deal of consideration has gone into the design and manufacturing of this instrument with regard to its operational ease, the patient's safety and well-being as well as to the reliability of the product. For safer and more effective use, however, follow the points described in this manual.

This instrument is designed for professional use.

~ General Definitions of Safety Symbols ~

Personal injury or physical damage may occur when this warning

CAUTION

LED Class 2 Product

NOTE

is ignored. General warning. Caution. Risk of danger.

Denotes general ban or prohibition.

General mandatory action.

Caution of invisible LED radiation. Avoid exposure to beam. Indicated inside of the device.

This device is an LED class 2 product.

Additional information which is important to the text or is useful/convenient to know.

RB-525-B041

CAUTION

 Always take great care when operating KW-2000. Malfunction or damage to the instrument could

occur.

 Cut the power immediately if malfunction occurs during operation. Damage to the equipment or

personal injury will result. Consult your dealer, if repair work needs to be carried out.

 At no time attempt to remodel or disassemble KW-2000. Damage to the instrument or personal injury

will result.

 As KW-2000 is a precision optical instrument, operations must be carried out at all times by

experienced, authorized personnel. Damage to the equipment or personal injury will result.

 Avoid installation near TV or radio. The reception can be disturbed by electrical noise. Follow the

manual for the proper installation.

 Never remove the plug from the outlet if your hands are wet. Electric shock or personal injury could

result.

 Make sure the power cord is not damaged. Fire or electric shock may occur.  Do not touch the optical parts. Measurement accuracy will be adversely affected.

 The power cord must be firmly connected to an electrical ground (safety ground) at the power outlet.

Personal injury may result form electric shock, etc.

 If the instrument fails to work properly, you should not try to repair the fault. Consult your dealer

immediately.

 The instruction in this manual ensures correct operations.  Observe the following environmental conditions for used and storage. Avoid dew condensation at all

time.

Temperature Relative humidity Use +10°C to +40°C 30% to 85% Storage –10°C to +60°C below 70%

Avoid the following conditions for storage and use of the instrument. Where noxious gases or air pollutants are present.

 Where dust and grit may occur.  Where oil fumes or greasy substances are emitted.  Where there are atmospheric concentrations of salt.  Near gas generation areas and places where dust accumulates.  Keep in a secure, stable situation. Do not expose to strong vibrations (areas of seismic activity) and

sudden shocks (this includes transportation) etc.

 Where there is an inclination of more than 10 degrees.  Where voltage from the power sources rises or falls sharply during loading.  Where fluctuations in the voltage of the power source occurs.  Direct contact with sunlight.

If the instructions above are not followed, damage to the equipment or personal injury will ensue.

RB-525-B042

Contents

Introduction............................................................................................................................. 1

Safety Consideration............................................................................................................... 1

Contents.................................................................................................................................. 2

Accessories............................................................................................................................. 4

1. Parts Identification............................................................................................................ 5

2. Conveyance and Handling Procedure ............................................................................. 6

3. Installation Environment................................................................................................... 6

4. Safeguard Summary........................................................................................................ 7

5. Preparation....................................................................................................................... 8

5.1 Setting ...........................................................................................................................................8

5.2 Applying Power .............................................................................................................................9

5.3 Standby.......................................................................................................................................10

5.4 Switch Function............................................................................................................ ...............11

6. Measurement................................................................................................................. 12

6.1 Measurement Flow......................................................................................................................12

6.2 Alignment ....................................................................................................................................13

6.3 Measurement Results .................................................................................................................14

6.4 Print Out......................................................................................................................................15

6.5 Kerato-Peripheral Measurement.................................................................................................16

6.6 IOL Measurement........................................................................................................................18

6.7 Menu Screen Setting...................................................................................................................19

6.7.1 Each Item Description....................................................................................................20

6.7.2 Optional Functions .........................................................................................................23

6.8 Auto Start Function......................................................................................................................27

6.9 Data Screen Function..................................................................................................................29

6.10 Power Saving Function .............................................................................................................30

6.11 Output Terminal.........................................................................................................................30

7. Tips for Effective Measurement......................................................................................31

8. Error Messages.............................................................................................................. 32

9. Contact Lens: Base Curve Measurement...................................................................... 33

10. Troubleshooting............................................................................................................. 34

11. Storage and Maintenance.............................................................................................. 35

11.1 Reloading Printer Paper............................................................................................................35

11.2 Fuse Replacement....................................................................................................................36

11.3 Storage......................................................................................................................................36

11.4 Confirmation of Measurement Accuracy...................................................................................37

11.5 Periodical Inspection and Maintenance ....................................................................................37

12. Specifications................................................................................................................. 38

RB-525-B043

Accessories

Model eye: 1

(with a contact lens holder)

Fuse: 2

(T2A 250V)

Dustproof cover: 1 Operations manual: 1

Power cord: 1

(2.5m)

Pack of chin rest liners: 1

(1,000 sheets)

Printer paper role: 3

(width 57mm)

Two packed and o ne

installed into the body

Chine rest liner pin: 2

Use accessories specified by us to avoid any malfunction or failure.

 Extra care should be taken for storage of a model eye. Avoid where the lens of the

model eye may be damaged as well as any dusty or humid/steamy environments.

 Avoid direct sunlight, humidity and high temperature when storing printer paper

which is a thermal paper.

RB-525-B044

1. Parts Identification

IOL switch

Measurement mode selection switch

LCD monitor

Power indicator

Menu switch

Print switch

Anti-sliding lock

Printer

Bod

Base

Head rest

Eye mark

View window

Measurement start switch

Joystick

Power switch

Fuse holder

Power plug connector

External interface connector

External monitor output terminal

Chin rest

Rating plate

RB-525-B045

2. Conveyance and Handling Procedure

When transporting the instrument, make sure that the body has been securely locked.

Center the body onto the base so that their edges are aligned. Push down the lock while turning right until both body and base are firmly fixed to each other.

3. Installation Environment

1) Do not expose the instrument's view window directly to the sunlight or bright lighting from other

sources.

Great care should be taken and avoid that the examinee is exposed to strong light or glare. The pupil will contract too much for measurement to be carried out.

2) Do not operate in places where either dust or rubbish

accumulates. Environment with extremes in heat and humidity should also be avoided. Always follow the environmental requirements below for installation.

Temperature Relative Humidity

3) Keep away from inflammable or explosive gases as

well as storage areas housing medical supplies and chemicals.

+10 °C ~ – 40°C

30 % ~ 85 %

Gases

Dust

4) Avoid installing where dew condensation may

accumulate. Also, avoid where the radical temperature changes may occur.

5) Keep away from sites that may experience strong

vibrations or sudden shocks.

6) Malfunction is likely to occur if the instrument is improperly stabilized or accidentally overturns.

To prevent internal/external damage caused by sudden impact, set the instrument on a solid and secure surface. Do not store in high, 'out of reach' places.

RB-525-B046

4. Safeguard Summary

1. KW-2000 is a precision optical instrument. Always handle with care and avoid dropping it

accidentally.

2. Ensure that the instrument is properly grounded when connected to the power source.

3. Do not touch the optical parts with fingers and be sure to avoid dust, as their measuring accuracy

could be adversely affected and incorrect values may result.

When dust or fingerprints appear on the optical part, use a soft cloth to wipe off the build-up. In case that the build-up is hard to remove, absolute alcohol is recommended. Take great care when cleaning these parts as they are particularly sensitive and fragile.

4. If the surfaces of the measuring unit and main unit including

the control panel are dirty, gently wipe with a dry cloth. For hard to remove stains, a damp cloth or neutral cleanser is recommended.

Avoid using organic solvents that will damage the water based paint finish of the instrument.

5. Clean the chin rest and head rest with the neutral cleanser.

For disinfecting them, especially where the examinee may contact, hydrogen peroxide (Oxydol) is recommended.

6. If the instrument is not used for any length of time, remove

the power cord from the outlet.

7. When not in use, protect the instrument with a supplied

dustproof cover.

8. When the instrument fails to function properly, never

attempt to perform internal service or adjustment. Contact your nearest registered agent, distributor or retail outlet.

Benzene

Thinner

RB-525-B047

5. Preparation

5.1 Setting

(1) Set a roll of printer paper in the printer. Refer to '11.1 Reloading Printer Paper' for the procedure.

(2) Set and fix the chin rest liners with the chin rest liner pins on the chin rest.

Refer to the figure on the right.

Chin Rest Liner Pins

For sanitary consideration, disposing

NOTE

a sheet of the used chin rest liners after every measurement is recommended.

Chin Rest Liners

Chin Rest

 Always use the chin rest liners following above.  For sanitary consideration, disinfecting the chin rest with Oxydol is

recommended.

RB-525-B048

5.2 Applying Power

(1) Confirm that the power is 'OFF' ( ).

POWER

T 2A 250V

(2) Insert the power cord into the instrument's power plug

connector. Then insert the plug into a general-purpose outlet.

(3) Turn the power switch 'ON' ( ).

Always make sure that the cable is grounded.

POWER

T 2A 250V

RB-525-B049

5.3 Standby

When the power is turned on, the screen as shown below appears on the LCD monitor, which is ready to take measurements.

Vertex distance

Increment o

measurement values

Refraction data

display area

Icon Description

Cylindrical mark

( 0 )

／

K MENU

0.25

Ref.

(Normal measurement)

Eye selection indication

0 )

(

Ker.

Icon Description

0.25 0.25

Indicates increment of refraction data.

Reticle mark

Number of measurement

Keratometry data display area

Minimum pupil diameter measurable

0.12

12 10 1513.512

Indicates corneal vertex distance. Selection is available among 0, 10, 12, 13.5 and 15mm.

Indicates a mark for a cylindrical value.

Indicates an eye currently measured.

Ref.

Refractive measurement result is displayed in this area. Indicated values are S, C, and A. Keratometry result is displayed in this area.

Indicated values are R1, R2, and A.

Ker.

K1, K2 and KC can be also indicated when the setting of KERATO in the menu screen is changed.

Shifts to IOL measurement mode. Measurement mode is switched. There are four measurement modes: Ref/Kerato

／

continuous measurement, Ref single measurement, Kerato single measurement, and measurement corneal periphery.

Shifts to MENU screen.

Displays the measurement result on the screen and prints it out.

＋ ±

RB-525-B0410

5.4 Switch Function

Operating switches below a LCD monitor correspond to the icons displayed on the bottom of the screen. For normal measurement, each icon functions as below.

／

K MENU

Down

Left

IOL switch

Measurement mode selection switch

Forward

Measurement start switch: starts the measurement.

Right

Backward

Operation of Joystick

• Forward: the body moves toward an examinee.

• Backward: the body moves toward an operator.

• Right/Left: the body moves to the right or left

respectively.

• The measurement unit moves up when the joystick

is rotated to the right, and moves down when rotated to the left.

Power indicator

(It blinks when the saving function is activated.)

Print switch

Menu switch

RB-525-B0411

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