Nidek Medical AR-600 Operator's Manual
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Nidek Medical AR-600 Operator's Manual

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NIDEK
AUTO REFRACTOMETER
Model AR-600
OPERATOR'S
MANUAL

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  • Page 1 NIDEK AUTO REFRACTOMETER Model AR-600 OPERATOR’S MANUAL...
  • Page 2 BEFORE USE OR MAINTENANCE, READ THIS MANUAL. This Operator’s Manual contains information on operating procedures of the NIDEK AUTO REFRACTOMETER Model AR-600, cautions for safety, specifications, accessories, and maintenance suggestion. The instrument complies with ISO 10342 (Ophthalmic instruments - Eye Refractometers).
  • Page 3 Table of Contents Page § 1 INTRODUCTION ......................1-1 1.1 Outline of the Product ....................1-1 1.2 Indications for use ....................1-1 1.3 Classification ......................1-1 1.4 Symbol Information ....................1-2 § 2 SAFETY.......................... 2-1 2.1 Operation ........................2-1 2.2 Storage ........................2-2 2.3 Transference ......................
  • Page 4 Page § 8 MAINTENANCE ......................8-1 8.1 Replacing Printer Roll ....................8-1 8.2 Fixing a Batch of Chin Rest Paper ................8-3 8.3 Replacing Fuses......................8-4 8.4 Cleaning the Measuring Window ................8-6 8.5 Cleaning Exterior ..................... 8-7 8.6 List of Parts for Replacement ................... 8-7 §...
  • Page 5 [This page is intentionally left blank.]...

  • Page 6: Outline Of The Product

    1.2 Indications for use The Model AR-600 Auto Refractometer is a diagnostic instrument that is indicated for use in the automated measurement of refractive errors of the eye.

  • Page 7: Symbol Information

    AR-600 is a normal instrument, which is provided with an enclosure not completely waterproof. Avoid splashing water on the instrument. [Degree of protection against flammability] The AR-600 is classified as an instrument not suitable to be used in a potentially flammable environment. Do not use near flammable materials.

  • Page 8: Operation

    If a dust settles between the prongs, the dust easily takes up moisture, and the damp dust may cause a short circuit and a fire. • The measured values of objective refractive power obtained by the AR-600 are intended to be used as a reference of lens prescription for the correction of visual acuity with spectacle or contact lenses.
  • Page 9 Governmental Industrial Hygienists (ACGIH) - Threshold Limit Values for Chemical Substances and Physical Agents (1995 - 1996 edition). The following page shows the graph of spectrum output for the AR-600. Patients will be at low risk of acute optical radiation with the AR-600. However, it is recommended that the intensity of light directed into the patient’s eye be limited to the minimum level which is necessary...
  • Page 10 2 - 3 CAUTION Spectrum output of all light source during AR measurement (maximum light intensity) AR-630A 1000 Wavelength: 波長：(nm) Spectrum irradiance (µW/cm /sr) 380 - 700 nm 1.158 (µW/cm /sr) 305 - 700 nm 0.089 : Spectrally weighted photochemical aphakic source radiance : Spectrally weighted photochemical phakic source radiance...
  • Page 11 2 - 4 Patient environment           The patient environment represents a space where there is a possibility of direct contact between the patient or the operator and third person. When another type of device is used in the patient environment, use a device that complies with IEC 60601-1.
  • Page 12 2 - 5 CAUTION • In advance of a measurement of each patient, wipe the forehead rest and chin rest with a clean cloth. Moreover, remove one chin rest paper for each patient if a bunch of the chin rest paper is fixed on the chin rest. If necessary, wipe the forehead rest and chin rest using a cloth dampened with rubbing alcohol.

  • Page 13: Installation

    2 - 6 2.4 Installation CAUTION • Before connecting power cord or interface cable, provide a stable, level, and open space. Since receptacles are under the base unit, the instrument may fall down and may cause injury or instrument malfunction. •...

  • Page 14: After Use

    2 - 7 2.5 Wiring CAUTION • Be sure to use the power outlet which meets the requirements of the power specification. If the line voltage is too high or too low, the instrument may not give full performance. Malfunction or a fire also may occur. •...
  • Page 15 2 - 8 CAUTION • When the instrument is sent back to NIDEK for repair or maintenance, wipe the surface (specially, the area where the patient’s skin contacts) of the instrument with a clean cloth immersed in ethyl alcohol for disinfection. •...
  • Page 16 2 - 9 2.9 Labels The following labels provide safety information about each part.
  • Page 17 CONFIGURATIONS § 3 If optionally ordered: IC Card System Measuring Unit Knob TV Monitor Start Button Joystick Display Panel Memory Indicator Print Button Cover for Switches Changing Button Locking knob IOL Button Printer Power Switch...
  • Page 18 3 - 2 IC Card System (Optional) IOL Button If the optional IC card system has been or- Should be pressed to turn on IOL mode when dered, the IC card Reader/Writer should have measuring an IOL-implanted eye or an eye been factory-built in this part.
  • Page 19 3 - 3 Min. Pupil Mark Cylinder Mode Indication Target Measuring Count Indication Alignment Light Indications on the TV monitor during measurement Contrast Control Brightness Control Setting Switch Eyeprint Switch CYL Mode Changing Switch Auxiliary Switches...

  • Page 20: Brightness Control

    3 - 4 Min. Pupil Mark CYL Mode Changing Switch Indicates the minimum pupil size measurable. Changes the cylinder mode, the reading di- The instrument may not perform measure- rection of cylinder data. ment when the measuring eye is smaller than + mode ..
  • Page 21 3 - 5 Forehead Rest Measuring Window Eye Level Marker LED for Corneal Illumination Chin Rest PD Window Chin Rest Knob From-the-top view V Control of TV Monitor Underside view H Control of TV Monitor Fuses Power Inlet Interface Connectors...

  • Page 22: Measuring Window

    A guide for the patient’s eye level for mea- lensmeter to import measured results from the surement. The height of the chin rest should lensmeter. If the AR-600 is equipped with an be adjusted so that the center level of the IC card system, the connector on side can patient’s eye almost aligns with this line.

  • Page 23: Operating Procedures

    OPERATING PROCEDURES § 4 4.1 Operation Flow Power ON 4.2 Preparation for Measurement (p. 4-1) Measurements → 4.3 AR (Refractive Power) Measurement (p. 4-6) → 4.4 PD (Pupil Distance) Measurement (p. 4-8) 5. PRINTOUT (p. 5-1) Power OFF (Determine final prescription by subjective refraction.) 4.2 Preparation for Measurement 1.
  • Page 24 4 - 2 NOTE • If “< PD ERR >” message is on the left of the TV monitor, the instrument may not recognize left and right (measurement may not be performed binocularly), and also PD (pupil distance) may not be measured.
  • Page 25 4 - 3 3. If you are measuring an IOL-implanted eye or an eye with a Contact Lens (CL) on, turn on the IOL mode by pressing The IOL ON mark appears on the top left of the TV monitor. IOL ON Mark NOTE •...
  • Page 26 4 - 4 4. Prepare the patient’s condition. 1) Clean the forehead rest and chin rest with a clean gauze. If a bunch of chin rest paper is fixed on the chin rest, remove one paper. 2) Instruct the patient to take off his/her glasses or contact lenses and to have a seat.
  • Page 27 4 - 5 2) Manipulate the joystick to place the patient’s eye on the TV monitor. By moving the joystick laterally, the main body moves right, left , back and forth. By turning the measuring unit knob, the measuring unit moves up and down. Align the eye position to the measuring point with right, left, up and down movements.
  • Page 28 4 - 6 4.3 AR (Refractive Power) Measurement 1. Perform measurement. Press the start button. NOTE • Instruct the patient not to blink during measurement. You will hear a short beep, and the alignment light will stop blinking. The patient’s view will be fogged. AR measurement will take place.
  • Page 29 4 - 7 NOTE • The instrument can memorize up to 10 measurements each for right and left eyes. If the measurements exceed 10, older data will be cleared in turn. • If the AI Mode parameter is set to “NO”, take about three shots for AR measurement. If the measurement result is not stable, take some additional shots.
  • Page 30 4 - 8 4.4 PD (Pupil Distance) Measurement A. Auto-PD measurement (When Auto-PD parameter is set to “YES”) The PD measurement will have been completed when AR measurement is finished. NOTE • The PD measurement will not be on the display but will be printed out together with AR results.
  • Page 31 4 - 9 NOTE • If the patient’s head is tilted, straighten it before starting measurement. • To measure monocular PD at the same time as the normal binocular PD measurement, press the start button each time at the right-eye, center, and the left-eye, after careful alignment for each.

  • Page 32: Printing Measurement Results

    PRINTOUT § 5 5.1 Printing Measurement Results Measured data will be printed out as soon as the AR measurement is completed. NOTE • When Print parameter is set to “Manu.”, should be manually pressed to print data. • Do not touch the printer paper while printing out. This may cause loss of text and light printed text.
  • Page 33 5 - 2 < Sample Printout 2 > Description of printing contents Patient number ’ ) Space for name and sex Measuring date and time Vertex distance * Near work distance* AR measurement ’ ), Confidence index* ’ ) S = Sphere, C = Cylinder, A = Axis Selected value* SE value* ’...
  • Page 34 5 - 3 *1 < Vertex distance > The distance between the corneal vertex to the posterior surface of the spectacle lens. *2 < Near work distance > Used for near PD calculation. Selectable between 35 - 70 cm in the system parameter. *3 <...
  • Page 35 5 - 4 *7 < Measurable range over error > Err +o ..The spherical power is over the measurable limit of + side. Err -o ..The spherical power is over the measurable limit of - side. Err co ..The cylindrical power is over the measurable limit. When the Error Code parameter is set to “YES”, the error code will be printed out as soon as error occurs.

  • Page 36: Other Functions

    OTHER FUNCTIONS § 6 6.1 System Setups The AR-600 is equipped with a function to change parameters of several system conditions according to the operator’s use. The way of confirming and changing each parameter are described as follows. 1. Press button.
  • Page 37 6 - 2 3. In the selected mode, press Each content will be printed as follows. Item Content...
  • Page 38 6 - 3 4. Make the desired item number appear on the display panel. For each press of the start button, the item number increases. NOTE • Pressing the start button on the condition that the last number of the mode is shown makes the first item number of that mode appear again.
  • Page 39 6 - 4 Parameter Table < Setting Mode 1 > * The underlined items indicate factory-settings. Items Contents Step 0.01D / 0.12D / 0.25D Vertex D. 0mm / 10.5mm / 12mm / 13.75mm / 15mm / 16.5mm Axis Step 1° / 5° Meas.
  • Page 40 6 - 5 < Setting Mode 2 > * The underlined items indicate factory-settings. Items Contents Patient No. YES / NO Patient No. 0001 / 9999 Name Print YES / NO Date Format Y.M.D / M.D.Y / D.M.Y / NO AR Print All / Short SE Print...
  • Page 41 6 - 6 < Setting Mode 3 > * The underlined items indicate factory-settings. Items Contents Conf. Index YES / NO Near PD YES / NO Working D. 35-70cm / 14-28 inch Auto PD YES / NO Chart Scene I/F Mode NIDEK I/F Format All / Short...
  • Page 42 6 - 7 < Setting Mode 4 > * The underlined items indicate factory-settings. Items Contents TV Auto-OFF YES / NO Error Print YES / NO Error Code YES / NO Error Data YES / NO IN port (LM) NIDEK LM Data Prt.

  • Page 43: Setting Date And Time

    6 - 8 6.2 Setting Date and Time 1. Press 2. Press four times so that the date and time setting mode will be established. The TV monitor shows “CLOCK SET” while the display panel shows the data with the “year” blinking.

  • Page 44: Entering Comments

    6 - 9 6.3 Entering Comments 1. Turn off the power switch. 2. While pressing down , turn on the power. The following will be printed out. < Sample Printout > P a r a m e t e r s for servicing Parameters Date &...
  • Page 45 6 - 10 3. Press five times to establish the mode for entering comments. The following appears on the TV monitor. Character code Line No. Figure No. NOTE • It is possible to input up to 24×2 characters. Figure No. 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Line No.
  • Page 46 6 - 11 Character Code Table The following characters (marks) are available to input. First digit of character code “ & Second digit of ‘ character code ∗ < ¥ > < Example > 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 •...

  • Page 47: Troubleshooting

    TROUBLESHOOTING § 7 In the event that the instrument does not work correctly, correct the problem according to the following table before contacting your authorized distributor. Symptom Suggestion ・ The power cord may not be well connected to the outlet. Reconnect it securely.
  • Page 48 7 - 2 Symptom Suggestion ・ The printer roll may be set with the wrong side up. Set it The printer does operate, however, with the correct side up. printed results cannot be obtained. ・ The patient may have blinked during measurement. Instruct the patient not to blink, and try again.

  • Page 49: Maintenance

    MAINTENANCE § 8 8.1 Replacing Printer Roll When a red line appears on the side of the printer paper, it means that the paper is running short. In such a case, stop using the printer and replace the roll with a new one. NOTE •...
  • Page 50 8 - 2 4. Insert the shaft in the new printer roll. 5. Set the roll into the printer housing. NOTE • If the roll is set in such a way that the paper becomes upside down, it is not possible to print data on the paper.
  • Page 51 8 - 3 8.2 Fixing a Batch of Chin Rest Paper 1. Pull out two fixing pins from the chin rest. 2. Take out proper numbers of chinrest papers from a pack of chin rest paper. It is impossible to fix a whole batch of chin rest paper. Be sure to fix the batch with 6mm width or less.

  • Page 52: Replacing Fuses

    8 - 4 8.3 Replacing Fuses If the instrument does not work even though the power switch is ON, fuses may be burnt out. In such a case, replace them. CAUTION • Perform replacement work in a stable and open space. If the instrument falls, it may malfunction or hurt somebody.
  • Page 53 8 - 5 5. Remove the used fuses from the fuse holders. 6. Insert new fuses into the fuse holders. 7. Turn the fuse holders clockwise while pressing them down with the screwdriver and set it into the main body. CAUTION •...

  • Page 54: Cleaning The Measuring Window

    8 - 6 8.4 Cleaning the Measuring Window When the measuring window gets fingerprints or dust on it, the reliability of the measured value will be lowered substantially. Check the dirt on the measuring window before use, and then clean it if it is dirty. 1.

  • Page 55: Cleaning Exterior

    8 - 7 8.5 Cleaning Exterior When covers or panels become dirty, wipe with a dry and soft cloth. For stubborn dirt, immerse the cloth in a neutral detergent, wring well, and wipe. Finally wipe with a dry and soft cloth. NOTE •...

  • Page 56: Ic Card System (Optional)

    Data will be printed out and at the same time written in the card. The card then will come out automatically. NOTE • In this case, data in the AR-600 will not be cleared. *1 When the AR-600 is equipped with an IC card system, the interface connector on side can not be used.

  • Page 57: Specifications

    SPECIFICATIONS § 10 Measurement of refractive power (AR measurement) (VD=12 mm) Measurable range Sphere: -18.00 D - +23.00 D Cylinder: 0 D - ±8.00 D Axis: 0º - 180º [Accuracy* The measurement accuracy of the instrument satisfies the following requirement set by ISO10342.* ISO10342 Deviation from the Criterion...
  • Page 58 10 - 2 Printout Date and time of measurement, and Patient number AR measurements Maximum 10 stored measurements for right and left eyes each, Selected value (when there are 3 or more measurements), Latest value (When there are 2 or less measurements), PD measurements Measured value of Distance PD Calculated value of Near PD...

  • Page 59: Power Source

    10 - 3 Power source* A. 100/120 Vac ±10 % 50/60 Hz B. 200 - 220/230 - 240 Vac ±10 % 50/60 Hz Dimensions 260 (W) × 485 (D) × 451 (H) mm 19.5 kg Environmental conditions (In transference and storage) Temperature - 40 - 70 ºC Humidity...

  • Page 60: Standard Accessories

    ACCESSORIES § 11 11.1 Standard Accessories 4 Fuses (2 of them are located in the body.) 4 rolls of Printer paper (One of them is set in the printer.) 1 Power cord 1 Dust cover 1 sheaf of Chin rest paper 11.2 Optional Accessories IC card system (Factory-built option) Video output (Factory-built option)

  • Page 61: Appendix. Aglossary

    GLOSSARY APPENDIX. A · AI Mode A mode where the instrument completes AR measurement as soon as selected value is obtained. But if “Error Data” of the parameter is set to “YES” and there are not any variations in the three measurements, measurement ends.
  • Page 62 A - 2 · Trial Lens Data The data where the selected value (or the latest value when the selected value has not been obtained) is examined and indicated by the cylinder mode (cylinder reading direction), which would make the sphere trial lens have lower power for convenience.
  • Page 63 INDEX AI mode ............4-6 Alignment Light........3-3, 4-5 Forehead Rest ..........3-5 Alignment observation ......10-2 Fuses ............3-5 AR Measurements ........4-6 Auto IOL ............. 4-3 Auto-PD measurement ....... 4-8 H Control of TV Monitor ......3-5 Auxiliary Switches ........3-3 Highspeed mode .........
  • Page 64 Index - 2 Index - 2 Index - 2 Index - 2 Index - 2 Operation Flow ........... 4-1 Parameter Table .......... 6-4 PD ERR ............4-2 PD Measurements ......4-8, 10-1 PD Window ..........3-5 Power Inlet ..........3-5 Power source..........
  • Page 66 * Specifications are subject to change without notice for improvement. NIDEK CO., LTD. : 34-14, Maehama, Hiroishi-cho, Gamagori, Aichi 443-0038, Japan (Manufacturer) Telephone: (0533) 67-6611 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: (03) 3288-0571 Facsimile: (03) 3288-0570...

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