Nidek Medical AR-600 User manual

NIDEK
AUTO REFRACTOMETER
Model AR-600
OPERATOR’S
MANUAL

NIDEK CO., LTD. : 34-14, Maehama, Hiroishi-cho, Gamagori, Aichi 443-0038, Japan
(Manufacturer) Telephone: [phone]
Facsimile: (0533) 67-6610
NIDEK CO., LTD : 6th Floor, Takahashi Bldg., No.2, 3-chome, Kanda-jinboucho
(Tokyo Office) Chiyoda-ku, Tokyo 101-0051, Japan
Telephone: [phone]
Facsimile: [phone]
Telex: 2226647 NIDEK J
NIDEK INCORPORATED : 47651 Westinghouse Drive, Fremont, California 94539, U. S. A.
(United States Agent) Telephone: [phone]
Facsimile: [phone]
NIDEK SOCIETE ANONYME : Europarc 13, rue Auguste Perret, 94042 CRETEIL, France
(Authorized Representative) Telephone: [phone]
Facsimile: (01) 49 80 32 08 2005. 1
32906-P902O
Printed in JAPAN

BEFORE USE OR MAINTENANCE, READ THIS MANUAL.
This Operator’s Manual contains information necessary for the operation of the NIDEK
AUTO REFRACTOMETER Model AR-600.
This manual includes the operating procedures, safety precautions, specifications, and
information about accessories and maintenance.
The device complies with ISO 10342 (Ophthalmic devices—Eye Refractometers). IEC
60601-1 and UL 60601-1 standards are applied in this manual. The dioptric powers are
indicated with a reference of wavelength λd = 587.56 nm. This manual is necessary for
proper use. Especially, the safety precautions and operating procedures must be
thoroughly understood prior to operation of the device. Keep this manual handy for
reference.
There are no user-serviceable parts inside the device except printer paper and fuses.
Therefore, if you encounter any problems or have questions about the device, please
contact NIDEK or your authorized distributor.
(This applies to products whose power source is 100/120 Vac.)
MEDICAL ELECTRICAL EQUIPMENT
34VK
UL60601-1
CAN/CSA C22.2 NO. 601.1
WITH RESPECT TO ELECTRICAL SHOCK, FIRE AND
MECHANICAL HAZARDS ONLY IN ACCORDANCE WITH
UL6060l-1 AND CAN/CSA C22.2 NO. 601.1

Page
Table of Contents
§
1INTRODUCTION .........................................................................................................1-1
1.1Outline of the Product ............................................................................................... 1-1
1.2 Indications for Use ................................................................................................... 1-1
1.3 Classifications .......................................................................................................... 1-1
1.4 Symbol Information ................................................................................................. 1-2
§
2SAFETY..........................................................................................................................2-1
2.1 Operation..................................................................................................................2-1
2.2 Storage......................................................................................................................2-2
2.3 Transportation...........................................................................................................2-3
2.4 Installation ................................................................................................................2-3
2.5 Wiring.......................................................................................................................2-5
2.6 After Use ..................................................................................................................2-5
2.7 Maintenance and Checks..........................................................................................2-9
2.8 Disposal.................................................................................................................... 2-9
2.9 Labels ..................................................................................................................... 2-10
§
3CONFIGURATION.......................................................................................................3-1
§
4OPERATING PROCEDURES ....................................................................................4-1
4.1 Operation Flow.........................................................................................................4-1
4.2 Preparation for Measurement ................................................................................... 4-1
4.3 AR (refractive error) Measurement .......................................................................... 4-6
4.4 PD (Pupillary Distance) Measurement.....................................................................4-8
§
5PRINTOUT ...................................................................................................................5-1
5.1 Printing Measurement Results .................................................................................5-1
5.2 Eyeprint .................................................................................................................... 5-4
§
6OTHER FUNCTIONS .................................................................................................. 6-1
6.1 System Setup ............................................................................................................6-1
6.2 Setting Date and Time .............................................................................................. 6-8
6.3 Entering Comments.................................................................................................. 6-9
§
7TROUBLESHOOTING ................................................................................................7-1

Page
§
8MAINTENANCE........................................................................................................... 8-1
8.1 Replacing the Printer Paper...................................................................................... 8-1
8.2 Setting a Stack of Chinrest Paper ............................................................................. 8-3
8.3 Replacing Fuses........................................................................................................8-4
8.4 Cleaning the Measuring Window.............................................................................8-6
8.5 Cleaning the Exterior ...............................................................................................8-7
8.6 List of Replacement Parts ........................................................................................ 8-7
§
9IC CARD SYSTEM (OPTIONAL) ............................................................................9-1
§
10SPECIFICATIONS ....................................................................................................10-1
§
11ACCESSORIES.......................................................................................................... 11-1
11.1 Standard Accessories ............................................................................................ 11-1
11.2 Optional Accessories ............................................................................................ 11-1
§
12EMC (ELECTROMAGNETIC COMPATIBILITY) .............................................12-1
APPENDIX A. GLOSSARY .................................................................................................. A-1
INDEX ...........................................................................................................End of this manual

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§1
INTRODUCTION
1.1 Outline of the Product
The NIDEK AR-600 is an auto refractometer which objectively measures refractive errors of
sphere, cylinder, and axis for the lens that corrects the patient’s vision into emmetropia. Weak
infrared rays are used for the measurement.
This device has a main body and a measuring unit integrated on one base. On the base are a chin
rest on the patient’s side and a printer on the operator’s side which outputs measured results. On
the main body is a TV monitor, a control panel, and a joystick, which are used to make alignment
and perform operations. The measuring unit has a measuring window into which the patient
looks and where the infrared ray radiates on the patient’s eye.
1.2 Indications for Use
The Model AR-600 Auto Refractometer is a diagnostic device that is indicated for use in the
automated measurement of refractive errors of the eye.
1.3 Classifications
[Form of protection against electric shock] Class I
The AR-600 is classified as a Class I device.
A Class I is a device in which the protection against electric shock does not rely on basic
insulation only, but which includes an additional safety precaution in such a way that means
are provided for the connection of the device to the protective (ground) conductor in the fixed
wiring of the installation in such a way that accessible metal parts cannot become live in the
event of a failure in the basic insulation.
Use a power outlet which is equipped with a grounding terminal.
[Degree of protection against electric shock] Type BApplied Part
The AR-600 is classified as a device with a Type BApplied Part.
A Type B Applied Part provides a particular degree of protection against electric shock,
particularly regarding the following:
- allowable leakage currents
- reliability of the protective earth connection (if present)
[Degree of protection against ingress of liquids] IP 20
The AR-600 is classified as IP20*1.
TheAR-600 is an ordinary device, as such does not provide protection with respect to harmful
effects due to the ingress of water although it is protected against access to hazardous parts
with a solid matter such as a finger of 12.5 mm in diameter.
Avoid exposing water to the device.
*1 In accordance with IEC 60529

1 - 2
[Degree of protection against flammability]
The AR-600 is classified as a device not suitable to be used in a potentially flammable
environment.
Do not use near flammable materials.
[Method(s) of sterilization or disinfection recommended by the manufacturer]
The forehead rest and chinrest should be wiped using a cloth dampened with alcohol as
necessary.
[Mode of operation]
Classification of theAR-600: continuous operation
1.4 Symbol Information
This symbol indicates that important descriptions are contained in the operator’s manual
and that the operator must refer to the operator’s manual prior to operation or maintenance.
This symbol indicates that the degree of protection against electric shock is of a Type B
Applied Part.
This symbol of the power switch indicates that when the switch is pressed to this symbol
side, power is supplied to the device.
This symbol of the power switch indicates that when the switch is pressed to this symbol
side, power is not supplied to the device.
This symbol indicates the fuse rating.
This symbol indicates the input port.
This symbol indicates the output port.
This indicates that the device must be supplied only with alternating current.
This indicates the knob for adjusting the contrast.
This indicates the knob for adjusting the brightness.

§2
SAFETY
In this manual, a signal word is used to designate the degree or level of safety alerting.
The definition is as follows:
CAUTION: Indicates a potentially hazardous situation which, if not avoided,
may result in minor or moderate injury or property damage accident.
Even situations indicated by CAUTION may result in serious injury under certain
conditions. Safety precautions must be strictly followed at all times.
2.1 Operation
CAUTION
• Never disassemble nor touch the inside of the device.
This may result in electric shock or device malfunction.
• Do not hold the power cord, but hold the mains plug to disconnect it from an outlet.
A break in the internal wiring of the cord may result in short circuit or electric shock.
• Never put a heavy object on the power cord nor catch the cord between any objects.
The cover of the cord may become worn and may cause fire or electric shock.
• If the metal core of the power cord is exposed, power turns on and off by shaking the cord,
or the cord/plug gets so heated that one cannot hold it, it means that the cord is damaged.
Exchange the cord immediately.
This may cause electric shock or fire.
• Do not use the device for other than the intended purpose.
NIDEK will not be responsible for accidents or malfunctions caused by such carelessness.
• Wipe between the prongs of the mains plug with a dry cloth every once in a while.
If dust settles between the prongs, the dust easily takes up moisture, and it may cause
short circuit and fire.
• The measured values of objective refractive power obtained by theAR-600 are intended
to be used as a reference for lens prescription for the correction of visual acuity with
spectacle or contact lenses. Manifest refraction must be used as the basis for spectacle or
contact lens prescription.

2 - 2
CAUTION
• In advance of measurement of each patient, wipe the forehead rest and chinrest with a
clean cloth. Moreover, remove one piece of chinrest paper for each patient if a stack of
the chinrest paper is fixed to the chinrest. If necessary, wipe the forehead rest and chinrest
using a cloth dampened with rubbing alcohol.
• In the event a failure occurs in the device, do not touch the inside of the device, but
remove the power cord from the outlet and contact your authorized distributor.
• Keep fingerprints and dust off of the measuring window.
The measurement accuracy may deteriorate substantially.
• In advance of a measurement of each patient, wipe the forehead rest and chinrest with a
clean cloth. Moreover, remove one chinrest paper for each patient if a bunch of the
chinrest paper is fixed to the chinrest. If necessary, wipe the forehead rest and chinrest
using a cloth dampened with rubbing alcohol.
• In the event a failure occurs in the device, do not touch the inside of the device, but
remove the power cord from the outlet and contact your authorized distributor.
• Keep fingerprints and dust off of the measuring window.
The measurement accuracy may deteriorate substantially.
2.2 Storage
CAUTION
• Do not store the device in a place where it may get wet or where poisonous gas or liquid
is stored.
• Avoid storing the device in an area with excessive heat, humidity, or dust.
To preserve the appearance and internal parts of the device, avoid direct exposure to
sunlight.