Huvitz CR-9000 Operation Manual
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Huvitz CR-9000 Operation Manual

Auto ref/keratometer
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Operation Manual
CR-9000/CRK-9000/CRK-9000P Auto Ref/Keratometer

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  • Page 1 Operation Manual CR-9000/CRK-9000/CRK-9000P Auto Ref/Keratometer...
  • Page 2 The information in this publication has been carefully checked and is believed to be entirely accurate at the time of publication. SHANGHAI HUVITZ assumes no responsibility, however, for possible errors or omissions, or for any consequences...
  • Page 3 Building 2, No. 58, Lane 450, Xiaonan Road, Fengxian, Shanghai, 201401, China All rights are reserved. Under copyright laws, this manual may not be copied, in whole or in part, without the prior written consent of SHANGHAI HUVITZ Co., Ltd.
  • Page 4 Auto Ref/Keratometer CRK-9000P CAUTION Provision of information on the avoidance of light hazard from the optical device is required in ISO 15004-2:2007 “Ophthalmic instruments-Fundamental requirements and test methods” The light emitted from this instrument is potentially hazardous. The longer the duration of exposure, the greater the risk of ocular damage.

  • Page 5: Table Of Contents

    Auto Ref/Keratometer CRK-9000P Contents Introduction ......................7 1.1. Overview ......................7 1.2. Classificaiton ....................8 Safety Information ....................9 2.1. Overview ......................9 2.2. Safety Symbol ..................... 10 2.3. Environmental Considerations ..............12 2.4. Safety Precaution ..................14 Characteristics ....................... 17 Note for Use ......................18 Names and functions of each part ..............
  • Page 6 Auto Ref/Keratometer CRK-9000P 8.2. Keratometry (KER Mode) ................39 8.2.1. Manual Measurement Mode............... 39 8.2.2. Auto Measurement Mode ................42 8.3. Corneal Curvature / Refractive Power Measurement Mode (K&R Mode) 43 8.3.1. Manual Measurement Mode............... 43 8.3.2. Auto Measurement Mode ................46 8.3.3.
  • Page 7 Auto Ref/Keratometer CRK-9000P 9.5.2. Blue LED ...................... 75 9.5.3. Yellow Filter ....................76 9.5.4. Capture Screen .................... 77 9.5.5. Selected Capture Screen ................77 9.5.6. Return to measure mode................81 9.6. DISPLAY Mode .................... 82 9.7. User SETUP Mode ..................84 9.8.

  • Page 8: Introduction

    Auto Ref/Keratometer CRK-9000P Introduction 1.1. Overview Auto Ref/Keratometer CRK-9000P is the equipment to provide the information of Spherical, Cylindrical and Axis while measuring the refraction of examinee‟s eyes. Auto Ref/Keratometer CRK-9000P is the equipment that can measure the corneal curvature of examinee.

  • Page 9: Classificaiton

    Auto Ref/Keratometer CRK-9000P 1.2. Classificaiton 1) Classification of product : -. EU - Class Im (with a measuring function) according to Annex IX (Rule 12) of the Medical Device Directive 93/42/EEC as amended by 2007/47/EC -. KFDA – Class II 2) Resistance against electric shock : Class I (earthed) 3) Protection class against electric : Type B 4) Protection against harmful ingress of water : Ordinary, IPX0...

  • Page 10: Safety Information

    Auto Ref/Keratometer CRK-9000P Safety Information 2.1. Overview Safety is everyone‟s responsibility. The safe use of this equipment is largely dependent upon the installer, user, operator, and maintainer. It is imperative that personnel study and become familiar with this entire manual before attempting to install use, clean, service or adjust this equipment and any associated accessories.

  • Page 11: Safety Symbol

    Auto Ref/Keratometer CRK-9000P 2.2. Safety Symbol The International Electrotechnical Commission (IEC) has established a set of symbols for medical electronic equipment which classify a connection or warn of any potential hazards. The classifications and symbols are shown below. I and O on power switch represent ON and OFF respectively.
  • Page 12 Auto Ref/Keratometer CRK-9000P Identifies the point where the system safety ground is fastened to the chassis. Protective earth connected to conductive parts of Class I equipment for safety purposes. Hot surface. Temperature Limitation Keep DRY Medical Equipment with respect to electric shock Fire and Mechanical Hazards only in accordance IEC 60601-1 with IEC60601-1 and EN60601-1...

  • Page 13: Environmental Considerations

    Auto Ref/Keratometer CRK-9000P 2.3. Environmental Considerations Please avoid the environment below for the operation and storage of the equipment. Where the equipment is exposed to water vapor. Don‟t operate the equipment with wet hands. Where the machine is exposed directly to the sunlight. Where the temperature changes frequently (Normal temperature for operation of the machine is at the range of 10C ~ 35C, and the humidity is at the range of...
  • Page 14 Auto Ref/Keratometer CRK-9000P Where the machine can be exposed to the chemical or flammable substances. Please keep the equipment out of dust and do not let inserted any metal parts such as coins, clips, etc. Do not disassemble or open the machine. The manufacture shall have no responsibility for any problems caused by these.

  • Page 15: Safety Precaution

    Customer maintenance of this equipment may only be performed as stated in the User‟s Manual and Service Manual. Any additional maintenance may only be performed by SHANGHAI HUVITZ‟s service technicians or other authorized persons. The manufacturer is only responsible for effects on safety, reliability, and...
  • Page 16 The equipment may only be used together with accessories supplied by SHANGHAI HUVITZ‟s. If the customer makes use of other accessories, use them only if there are usability under technical safety aspects has been proved and confirmed by SHANGHAI HUVITZ or the manufacturer of the accessory.
  • Page 17 Auto Ref/Keratometer CRK-9000P all such combination-system-shall comply with the standard IEC60601-1 and/or IEC60601-1-1 harmonized national standard or the combination. If, in doubt, contact qualified technician or your local representative the operator should not touch the patient and accessible male parts of the SIP/SOP connectors simultaneously.

  • Page 18: Characteristics

    Auto Ref/Keratometer CRK-9000P Characteristics It is possible to measure the refractive power and corneal curvature with one(1) set of the machine: Refractometry and Keratometry As the measurement range of refractive power is wide from-30D to +25D, it can measure the severe myopia. As measuring the curvature, the minimum measurable pupil diameter is Ø...

  • Page 19: Note For Use

    Auto Ref/Keratometer CRK-9000P Note for Use Do not hit or drop the instrument. The instrument may be damaged by the strong impact. The impact may damage the function of this instrument. Handle it with care. The precision of measurement can be affected when the machine is exposed to the direct sunlight or too bright indoor illumination.

  • Page 20: Names And Functions Of Each Part

    Auto Ref/Keratometer CRK-9000P Names and functions of each part 5.1. Main parts [ Figure 5-1. Front ] 1. Height Adjustment Mark: Adjusts the eyes‟ height of examinees 2. Display Monitor: Monitor for measurement 3. Print Button: Button for printing of measuring results. 4.
  • Page 21 Auto Ref/Keratometer CRK-9000P [ Figure 5-2. Back Section ] 1. Forehead Rest: Preventing the vibration by fixing the forehead 2. Measuring Object Lens: Measuring the image imaging on the retina of eyes. 3. Chin Rest: Preventing the vibration by fixing the chin 4.
  • Page 22 Auto Ref/Keratometer CRK-9000P ③ ① ④ ② ⑤ [ Figure 5-3. Bottom Section ] 1. Power Supply Socket: A socket connecting to exterior power plug 2. Fuse Holder: 250V T3.15L 3. Exterior Monitor Connection Connector: Connecting into the exterior monitor 4.

  • Page 23: Explanation On Switches In Front

    Auto Ref/Keratometer CRK-9000P 5.2. Explanation on Switches in Front ❶ ❷ ❸ ❹ ❺ ❻ [Figure 5-4. Front Section Switches] (SETUP) Button: A switch to change the User setup mode (MODE) Button: A switch to change the mode (REF, KER, K&R, KER-P, CLBC) for measurement.

  • Page 24: Installation Of Equipment & Preparation Of Measurement

    Auto Ref/Keratometer CRK-9000P Installation of Equipment & Preparation of Measurement 1. Release of Lock on Stage Section Unlock the clamping bolt at the button of the machine by rotating it counterclockwise, and change the stage fixing lever behind the joystick to the direction of UNLOCK.
  • Page 25 In case of transmitting the measured results to other machines, prepare other machines while connecting the cable into the interface connector of this machine. The device conncected to Auto Ref/Keratometer is SHANGHAI HUVITZ Digital Refractor, Lens meter and PC with a software supplied by 3th-party.

  • Page 26: Exercise Through Model Eye

    Auto Ref/Keratometer CRK-9000P Exercise through Model Eye 1. Power On of Main Body Connect the power plug appropriately as shown in the picture. Let the power switch on. Measuring screen appears as system check is completed. [Figure 7-1. Power Cable Connection] 2.
  • Page 27 Auto Ref/Keratometer CRK-9000P Tilt the operation lever over the model eye until the mire image appear around the external alignment ring. Adjust so that the mire image shall come coincide the external alignment ring while watching the monitor. Adjust the focus so that the focus-adjustment focus symbol shall appear on the internal alignment ring.
  • Page 28 Auto Ref/Keratometer CRK-9000P Too close to the patient‟s eye. Optimal condition. Too far from the patient‟s eye <Focusing Indicator>...
  • Page 29 Auto Ref/Keratometer CRK-9000P External Alignment Ring Internal Alignment Ring [ Figure 7-4. Adjustment of Measuring Position & Focus ] 6. Measurement Manual Adjustment ① Adjust the focus and position of model eye as like in the procedure of adjusting measurement position & focus explained in the previous page. ②...

  • Page 30: Measurement

    WARNING If the following situations happen, contact to the agents of SHANGHAI HUVITZ after immediately pushing the power switch off, and pulling the power cord out of AC Power connection part. ● In case that smoke comes, or strange smell or sound is heard from the equipment.

  • Page 31: Refractometry (Ref Mode)

    “ON” again in 10 seconds after switching it off. If the measurement screen continues not to appear either, please contact to the agents of SHANGHAI HUVITZ. 3. Check the user Setup mode. Check and select the diverse functions relating to measurement including VD value or printing condition.

  • Page 32: Manual Measurement Mode

    Auto Ref/Keratometer CRK-9000P 8.1.1. Manual Measurement Mode As changing AF mode to the MF/AF mode, it changes to the manual measurement mode. If you select the MANUAL mode, the auto measurement function can be stopped. (refer to section user setup mode). ①...
  • Page 33 Auto Ref/Keratometer CRK-9000P CAUTION Do not insert your hands or fingers between stage and base. Also, make sure that the examinee should not put his or her hands or fingers there. Hands or fingers can get injured. - Pull the body of equipment to the front of user by using the operation lever. - Let the right-side eye of examinee appear at the center of monitor screen by slowly pushing and rotating the operation lever forward.
  • Page 34 Auto Ref/Keratometer CRK-9000P Manual/Auto Pupil Iris External Array Ring (Min. Radius of Iris Φ2.0 mm) [ Figure 8-1-3. REF Manual Mode Screen ] NOTE ● As it is not enough to adjust it by tilting the operation lever, adjust it by pushing the stage to the directions of left/right.
  • Page 35 Auto Ref/Keratometer CRK-9000P - In case of the consecutive measurement, the result of the previous measurement is indicated. ④ Repeated Measurement - Measure repeatedly if necessary. - The latest measured value is to be indicated every time new measurement is performed.
  • Page 36 Auto Ref/Keratometer CRK-9000P ⑥ Print - Print the measured result by pushing the PRINT button. - The contents selected in SETUP mode is to be printed.(Refer to section user setup mode) - Pull the printing paper. ( Auto Cutting ) - Put the name of examinee in the blank of NAME if necessary.

  • Page 37: Auto Measurement Mode

    Auto Ref/Keratometer CRK-9000P 8.1.2. Auto Measurement Mode As touching MANUAL button in Manual Measurement mode, it automatically changes to the Auto measurement mode. As the condition of good array between the machine and the measured eye is reached, the measurement is to be performed automatically without pushing the Measurement button.
  • Page 38 Auto Ref/Keratometer CRK-9000P ③ Measurement of Another Eye - Measure the left eye according to the same procedure by moving the stage to the right side. - As the measurement to both eyes is completed, the value of PD is to be indicated automatically on the screen of monitor.
  • Page 39 Auto Ref/Keratometer CRK-9000P - As the message of TRY AGAIN happens, please refer to the explanation below. In case of TRY AGAIN Management Measure it after adjusting the exact position Poor position adjustment again. Let the examinee open the eye wide, or measure As eyelid or eyelashes hide it while pushing the upper eyelid of examinee the pupil...

  • Page 40: Keratometry (Ker Mode)

    Auto Ref/Keratometer CRK-9000P 8.2. Keratometry (KER Mode) It is the mode to measure the corneal curvature solely. Do not measure the base curve of hard contact lens in this mode. Please refer to CLBC mode in section 8.5 regarding the base curve of hard contact lens. Check whether or not the screen of monitor is in measurement mode.
  • Page 41 Auto Ref/Keratometer CRK-9000P Perform the same 4, 5 procedure of section 8.1.1. ③ Print the measured result through the same 6 procedure of section 8.1.1. ④...
  • Page 42 Auto Ref/Keratometer CRK-9000P [ Figure 8-2-2. Example of Print ]...

  • Page 43: Auto Measurement Mode

    Auto Ref/Keratometer CRK-9000P 8.2.2. Auto Measurement Mode As touching MANUAL button in Manual measurement mode, it is to be changed to Auto measurement mode. As the condition of good array between the machine and measured eye is reached, the measurement is to be performed without pushing the measurement button.

  • Page 44: Corneal Curvature / Refractive Power Measurement Mode (K&R Mode)

    Auto Ref/Keratometer CRK-9000P 8.3. Corneal Curvature / Refractive Power Measurement Mode (K&R Mode) This is the mode to consecutively perform the measurement of corneal curvature and refractive power. Check whether or not the measurement screen appears on the screen of monitor. Set K&R measurement mode, You can see K&R mode on the upper left side of the screen.
  • Page 45 Auto Ref/Keratometer CRK-9000P Iris Pupil Alignment Ring Mire Image [ Figure 8-3-1. Screen indicating K&R Mode ] Perform the same procedure as like in procedure 4, 5 of section 8.1.1. ③ Print the measured result through the same procedure as like in procedure 6 of ④...
  • Page 46 Auto Ref/Keratometer CRK-9000P [ Figure 8-3-2. Example of Print ]...

  • Page 47: Auto Measurement Mode

    Auto Ref/Keratometer CRK-9000P Selection of Screen Indication Type ⑤ - In the measurement mode including the refractive power measurement, you can designate the sign of astigmatic refractive power in SETUP mode. - Also, you can indicate the measured data of refractive power on the screen according to VD value in the measurement mode including the refractive power measurement.

  • Page 48: Diverse Indications

    Auto Ref/Keratometer CRK-9000P 8.3.3. Diverse Indications Meaning of Kind Name Measures Signs Indicating Measured Measure value of low again reliability reliability Exceeding SPH exceeds measurabl +25 D Measurement of e range Refraction Exceeding SPH exceeds Impossible to measurabl –30 D measure e range Exceeding...

  • Page 49: Keratometry Peripheral Measurement (Ker-P Mode)

    Auto Ref/Keratometer CRK-9000P 8.4. Keratometry Peripheral Measurement (KER-P Mode) It is the mode to measure the curvature of part around cornea. Based upon the center of cornea, measure the curvature of part around cornea from the positions of up/down and left/right direction. It is to indicate the relative eccentricity while comparing the curvature of part around cornea with the curvature of corneal center.
  • Page 50 Auto Ref/Keratometer CRK-9000P [ Figure 8-4-1. Screen indicating KER-P mode ] In case of corneal center, R1 : Radius of curvature on maximum meridian R2 : Radius of curvature on minimum meridian AX : Axis on the radius of curvature on maximum meridian HEC : Eccentricity of horizontal direction in the entire eyeball VEC : Eccentricity of perpendicular direction in the entire eyeball AEC : Average eccentricity of the entire eyeball...
  • Page 51 Auto Ref/Keratometer CRK-9000P empty box. The relevant box indicated at the part around cornea which is measured now is to flicker. Direction of part around cornea Superior (SUP) : Upside from corneal center Inferior (INF) : Downside from corneal center Temple (TEM) : To the temple of examinee from corneal center Nasal (NAS) : To the nose of examinee from corneal center Sequence to measure the part around cornea...
  • Page 52 Auto Ref/Keratometer CRK-9000P In case of part around cornea (SUP, INF, TEM, NAS), R1 : Radius of curvature on maximum meridian in periphery R2 : Radius of curvature on minimum meridian in periphery AX : Axis on the radius of curvature on maximum meridian in periphery RM : Average curvature in periphery EQ : Difference between diopter and corneal center EC : Eccentricity of periphery...

  • Page 53: Measurement Of Contact Lens Base Curve(Clbc Mode)

    Auto Ref/Keratometer CRK-9000P 8.5. Measurement of Contact Lens Base Curve(CLBC Mode) It is the mode to measure base curve of contact lens (concave surface). Check whether or not the measurement screen appears on the screen of monitor. Set CLBC mode, You can see CLBC mode on the upper left side of the screen. Adhesion of Contact Lens - Put the surface of contact lens to be measured to the upward direction.
  • Page 54 Auto Ref/Keratometer CRK-9000P Measurement - Push the measurement button. - As you keep pushing the measurement button, the measurement is to be performed consecutively. - As the measurement is completed, the measured result is to be indicated on the screen of monitor. NOTE The measure result of astigmatic axis in base curve(concave surface) of contact lens has the difference of 90°...

  • Page 55: Other Modes

    Auto Ref/Keratometer CRK-9000P K1 : Rrefractive power on minimum meridian K2 : Rrefractive power on minimum meridian KC : corneal astigmatism Print - Press Print button. Other Modes 9.1. ILLUMINATION Measurement Mode (ILLUM Mode) Illum measurement mode is the measuring function to use usefully in the following cases.

  • Page 56: Adjustment Of Array And Focus

    Auto Ref/Keratometer CRK-9000P 9.1.1. Adjustment of Array and Focus ① Perform the adjustment of array and focus according to procedure 1, 2 of section 8.1.1. ② As pushing ILLUM button after pushing button while selecting Illum mode, the Illumination measurement mode screen. [Observe] ...
  • Page 57 Auto Ref/Keratometer CRK-9000P [Measure]  - If you push Measure button in [Observe] window, it is changed to [Measure] window.[Measure] window is to consecutively measure the sight refractive power, astigmatism and astigmatic angle, and to show them together with Illumination image on the screen at the same time. [ Figure 9-1-2.

  • Page 58: Observation On Illumination

    Auto Ref/Keratometer CRK-9000P Measurement Mode Return: As pushing button, it is to finish Illumination mode, and to return to the ordinary measurement mode. 9.1.2. Observation on Illumination ① Adjustment of brightness of LED to measure refractive power - In order to take a close look at Illumination image, change the intensity of LED to measure refractive power by one (1) level using ↓...

  • Page 59: Storage

    Auto Ref/Keratometer CRK-9000P NOTE The opacity of crystalline lens caused by cataract can lead in errors of measured value while causing the aberration by the decenteredness. 9.1.3. Storage If you want to store the stopped image in memory, push the measure button. You can store max of two (2) images for each eye.

  • Page 60: Return To Measurement Mode

    Auto Ref/Keratometer CRK-9000P In order to call the stored Ret-Illumination image for two eyes on the screen of ① monitor, enter Display mode by pushing button. For magnify image which is save in DISPLAY mode by touch it. ② As pushing button, it shall return from the enlarged window to the Display ③...

  • Page 61: Zernike Mode

    Auto Ref/Keratometer CRK-9000P 9.2. ZERNIKE Mode Zernike Mode indicates the distribution of refractive power in pupil area. Based upon the wavefront of emmetropes, Z-Map is drawn as a kind of topographical map having the elevation according the degree of distortion(aberration) of wavefront come from myopia or hypermetropia.
  • Page 62 Auto Ref/Keratometer CRK-9000P - RMS(Low) : aberration (low order aberration average) - RMS(High) : aberration (high order aberration average) [ Figure 9-2-2. Zernike mode Window (Map) ] [ Figure 9-2-3. Zernike mode Window (Map) ]...
  • Page 63 Auto Ref/Keratometer CRK-9000P Map Level on the left side in window is the aberration value of wavefront, and it is the color table to draw map. The max and min value of the aberration of measured wavefront is indicated by the unit of micrometer(um). The wavefront aberration of emmetropes is 0, and the severer the myopia and hypermetropia is, it is to have higher wavefront aberration of (+) and (-) sign respectively.
  • Page 64 Auto Ref/Keratometer CRK-9000P : Graph [ Figure 9-2-4. Zernike mode Window (Graph) ] The graph shows coefficients of individual aberration compoments included in a group. (combination of aberration components). A side-by-side display of the preoperative and postoperative coefficient graphs tells differences in each aberration component. : PSF image...

  • Page 65: Change Of Window

    Auto Ref/Keratometer CRK-9000P [ Figure 9-2-5. Zernike mode Window (PSF image) ] PSF image information items indicated on bottom of window are as follows : E type chart : Grid type chart : Radiation type chart : ETDRS type chart 9.2.2.
  • Page 66 Auto Ref/Keratometer CRK-9000P [ Figure 9-2-6. Zernike mode (Map, PSF image) Window Change ]...

  • Page 67: Measurement Of Corneal Radius(Size Mode)

    Auto Ref/Keratometer CRK-9000P 9.3. Measurement of Corneal Radius(SIZE Mode) It is the mode to measure the corneal radius. Check the measurement window on the screen of monitor. Adjust the position and focus so that the image of eye to be measured can be seen apparently.
  • Page 68 Auto Ref/Keratometer CRK-9000P Iris Perpendicular Pupil Right eye Corneal outline [ Figure 9-3-2. Window indicating Size Mode (2) ] Adjustment of measurement position and focus - Ask the examinee to look at the internal fixed target. - Adjust the position so that the pupil shall be in between two(2) perpendicular bars by moving the operation lever.
  • Page 69 Auto Ref/Keratometer CRK-9000P C. Move the relevant bar to left/right sides by pushing button or button. D. The measured value shall be indicated on the screen of monitor. E. Store the measured value by pushing the measurement button. F. Measured pupil size “R” or “L”show in bottom-center of display. Measured Average value AVG SIZE show in next.
  • Page 70 Auto Ref/Keratometer CRK-9000P Repetition of Measurement Repeat the measurement in the entry of measured value as many times as you need. Repeat the procedure of 2~4 as performing the measurement again. Measured value Average [ Figure 9-3-4. Window indicating repletion of Size Mode Measurement ] Measurement of the other eye Move stage to opposite side, then change Pupil size “R”...

  • Page 71: Virtual Comparison Mode

    Auto Ref/Keratometer CRK-9000P 9.4. VIRTUAL COMPARISON Mode A Virtual comparison Function allows the patient to compare the current uncorrected eye view with the corrected view. By changing the distance to the chart, the patient can experience the virtual comparison. 1. Perform AR measurement. 2.
  • Page 72 Auto Ref/Keratometer CRK-9000P [ Figure 9-4-1. Display of VIRTUAL COMPARISON Mode ] The item of data information which are indicated in screen. A. REF/FAR or NEAR(40 mm) : AUTO REK/KERATOMETER DATA B. LENS : Lensmeter DATA C. S (Spherical) : Spherical data. D.

  • Page 73: Color View Mode

    Auto Ref/Keratometer CRK-9000P 9.5. COLOR VIEW MODE Measures the radius of curvature of the cormea and see the condition which wears contact lens in White LED / Blue LED / Yellow Filter mode. [ Figure 9-5-1. Display of Color View mode ] The item of data information which are indicated in screen.
  • Page 74 Auto Ref/Keratometer CRK-9000P : Select to Yellow Filter. : Select to White LED. : Select to Blue LED. : capture image displayed on the screen. (maximum LEFT 2, RIGHT 2 ) : Measurement data displayed on the screen. ↑ button : Up of LED Power : Indicates current LED.

  • Page 75: White Led

    Auto Ref/Keratometer CRK-9000P 9.5.1. White LED It is the function to observe of the patient eye by using White LED lighting in the color image. 1. After when pressing buttons in measure mode, presses COLOR buttons then COLOR VIEW MODE screen appear. 2.

  • Page 76: Blue Led

    Auto Ref/Keratometer CRK-9000P 9.5.2. Blue LED It is the function to observe the level of the fitness of contact lens with the patient eye using Blue LED and fluorescent solution. 1. Put in the fluorescent solution into the patient eye and wear the contact lens. 2.

  • Page 77: Yellow Filter

    Auto Ref/Keratometer CRK-9000P 9.5.3. Yellow Filter The operator can see the level of the fitness of contact lens more clearly and definitely with this function. 1. Perform the same procedure as like in procedure 2, 3 of section 9.5.2 and press the button.

  • Page 78: Capture Screen

    Auto Ref/Keratometer CRK-9000P 9.5.4. Capture Screen 1. After when pressing buttons in measure mode, presses COLOR buttons then COLOR VIEW MODE screen appear. 2. Press measurement button (joystick) to capture the image of examinee. button is pressed, capture image is displayed on the screen. (Max LEFT 2, RIGHT 2 ) [ Figure 9-5-5.
  • Page 79 Auto Ref/Keratometer CRK-9000P [ Figure 9-5-6. Color View mode – selected capture image ] < User Menu > : Emphasizing the green contrast of the measurement image. (Check more easily with contrast emphasis of the measurement image.)
  • Page 80 Auto Ref/Keratometer CRK-9000P : Angle measurement. (The angle of three points on the touch screen is measured) : Length measurement. (The length of two points on the touch screen is measured.)
  • Page 81 Auto Ref/Keratometer CRK-9000P : Guide Line(3 mm, 5 mm, 7 mm) display. : fitting state display. (The curvatures of the cormea and the contact lens displayed in screen. Automatically which are flat or normal or steep)

  • Page 82: Return To Measure Mode

    Auto Ref/Keratometer CRK-9000P [ Figure 9-5-7. Flat, Normal, Steep icon screen ] : Reverting to the previous screen. (Displayed on the LCD screen to remove all things revert to the initial screen.) ⇒ 9.5.6. Return to measure mode. Presses button in Color View mode then turns back [REF], [KER], [K&R], [KER-P] or [CLBC] mode.

  • Page 83: Display Mode

    Auto Ref/Keratometer CRK-9000P 9.6. DISPLAY Mode You can see the measured results (Max ten(10) units of data) stored in memory in this mode. As pushing DISPLAY mode in the measurement mode, it changes to DISPLAY Mode. It returns to the measurement mode as pushing button again.
  • Page 84 Auto Ref/Keratometer CRK-9000P Measured Result of Keratometry - It indicates the latest measured result of max amount of ten(10) times(refractive power of left/right eyes). As pushing button, the stored data is to be removed and returns to the measurement mode. [ FIgure 9-6-2.

  • Page 85: User Setup Mode

    Auto Ref/Keratometer CRK-9000P 9.7. User SETUP Mode It is to perform many setups relating to measurement, print-out, etc. As pushing (SETUP MODE) button, it enters USER SETUP mode. [How to change page] Select the wanted page while pushing , button. : it is to enter the previous page.
  • Page 86 Auto Ref/Keratometer CRK-9000P [ Figure 9-7-1. Setup Mode Information (page 1) ] [Content of Item] : 1/6Page REF ( Refractometry measurement ) VD : Corneal Vertex Distance CYL : Astigmatism Indication Type INC-R : Indication Unit of SPH and CYL FOGG : The number of times fogging system in continuous measure mode.
  • Page 87 Auto Ref/Keratometer CRK-9000P [ Figure 9-7-2. Setup Mode Information (page 2) ] [Content of Item] : 2/6 Page KER ( Keratometry measurement ) mm/D : Indication Type of Corneal Measurement R1 · · · · · Radius of curvature on maximum meridian R2 ·...
  • Page 88 Auto Ref/Keratometer CRK-9000P PATIENT NUMBER ( Setup of Serial Number ) COUNT : Selection whether or not to use serial number NO. : Setup of Serial Number ( range : 0 ~ 9999 ) [ Figure 9-7-3. Setup Mode Information (page 3) ] [Content of Item] : 3/6 Page AUTO START ( Output format ) MODE :...
  • Page 89 Auto Ref/Keratometer CRK-9000P BPS : Select the one among 9600, 57600, and 112500bps as its data transfer rate. RS232 : Setup of transmission method.(method and version of other equipment) MODE : Data format setup of transmission method. [ Figure 9-7-4. Setup Mode Information (page 4) ] [Content of Item] : 4/6 Page PRINT (Print Setup) A-PRT : In case of measuring in AUTO START Mode, it is to print out the...
  • Page 90 Auto Ref/Keratometer CRK-9000P result of Refractometry. Off : It is not to be printed out. Std : The measured result & average value of max ten(10) times are to be printed out. Avg : Only average value is to be outputted printed out. K-PRT : Output type of built-in printer for the measured result of Keratometry.
  • Page 91 Auto Ref/Keratometer CRK-9000P [ Figure 9-7-5. Setup Mode Information (page 5) ] [Content of Item] : 5/6 Page PRINT MESSAGE ( Input the measured data and message to be outputted through printer by using the function of internal printer message input. It can print characters on two(2) lines.
  • Page 92 Auto Ref/Keratometer CRK-9000P DATE : Setting of date(year/menth/date) ( range : Y = 00 ~ 99 , M = 01 ~ 12, D = 01 ~ 31 ) TIME : Setting of time(hour/minute/second) ( range : H = 00 ~ 23 , M = 00 ~ 59, S = 00 ~ 59 ) [ Figure 9-7-6.
  • Page 93 Auto Ref/Keratometer CRK-9000P ETC. ( Other Setup ) LANG : You can select the language characters indicated on the screen and the print output. BEEP : Setup of Beep sound. INIT-M : Select of initial mode. [ Figure 9-7-7. Other (Character) Input ] - Character Input –...
  • Page 94 Auto Ref/Keratometer CRK-9000P (Enter) : Change of line. : Save of information. [ Figure 9-7-8. Other (Number) Input ] - Number Input – Range : Minimum ~ Maximum range which is possible of input. (If it will escape a range then will not save and displayed warning message “Out of Range!”.) : Erase of number.

  • Page 95: Power Saving Function

    Auto Ref/Keratometer CRK-9000P 9.8. Power saving Function The power saving function begins to operate if you do not operate the machine atall fo r three(3) minutes or so. It is to return to the measurement mode as pushing any butto n optionally in saving mode.

  • Page 96: Self Diagnosis & Maintenance

    Auto Ref/Keratometer CRK-9000P 10. Self diagnosis & Maintenance 10.1. Before calling for serviceman In case that abnormality happens or the machine operates abnormally, a warning sign is to be indicated. In this case, perform the settlements below. If the machine does not return to the normal condition in spite of the measures below, contact to the agent where you bought the machine after switching the power off.
  • Page 97 Auto Ref/Keratometer CRK-9000P Message Cause Method of Settlement Refer to page 15 Refer to page 15 TRY AGAIN Objective glass in the measurement Clean the glass window is polluted Sphere of examinee‟s eye exceeds +25 D Impossible to Curvature radius of examinee‟s eye measure + OUT exceeds 13.0 mm...

  • Page 98: Replacement

    Auto Ref/Keratometer CRK-9000P Message Cause Method of settlement -There is no printer paper or Install printer paper or close CHECK PAPER lever is not closed. the lever. ④ Checking the calibratin of instrument Message Cause Method of settlement Measure and check the value Unit seems having of model eye that provided wrong measurement...

  • Page 99: Chin Rest Paper

    Auto Ref/Keratometer CRK-9000P As red line appears on the paper, immediately change the print paper with new one. Presses the button in the printer side, open the cover. ① Cut the paper inserted in the printer, and take it away ②...
  • Page 100 Auto Ref/Keratometer CRK-9000P Remove the Power cord ② Pick the fuse holder out from the Power inlet ③ Exchange the fuses ④ Insert the fuse folder ⑤ [ Figure 10-2. Replacing Fuse ] INFORMATION Use 250V, T3.15L fuse for the Auto Ref/Keratometer CRK-9000P.

  • Page 101: Cleaning Equipment

    Auto Ref/Keratometer CRK-9000P 10.3. Cleaning Equipment The equipment should be kept as clean basically. Do not use the solvents such as ① strongly volatile substance, thinner, benzene, etc. Put some soapy water to the soft cloth, and twist the water out of the cloth. Then, ②...

  • Page 102: Service Information

    11. Service Information Repair: If the problem is not solved in spite of the settlement according to the contents of chapter 10, please contact to SHANGHAI HUVITZ‟s agent with the information on the following items. Name of Equipment Type : CRK-9000P Typical No.

  • Page 103: Main Specifications

    Auto Ref/Keratometer CRK-9000P 12. Main Specifications Measurement Mode Continuous Keratometry & Refractometry (K/R Mode) Refractometry (REF Mode), Keratometry (KER Mode) Keratometry Peripheral (KER-P Mode) Base Curve of Contact Lens(CLBC Mode) Refractometry Vertex Distance(VD) 0.0, 12, 13.5, 15.0 - 30.00 ~ +25.00 D (In case of VD = 12 mm) 0.00 ~ ±...
  • Page 104 Auto Ref/Keratometer CRK-9000P Corneal diameter 2.0 ~ 14.0 mm (0.1 mm Unit) Working range of auto-tracking Up & Down ± 15 mm Right & Left ± 5 ± 2 mm Back & Forth ± 5 ± 2 mm Working range of auto-shooting Up &...

  • Page 105: Accessories

    Auto Ref/Keratometer CRK-9000P 13. Accessories [ Figure 13-1. Accessories ] 1. Power Cable(AC100-240V, 50 / 60 Hz Power plug or other)· · · · · · · · · · · · · · · · · · 1 unit 2 .

  • Page 106: Emc Information

    Auto Ref/Keratometer CRK-9000P 14. EMC Information Table 1:Guidance and manufacturer‟s declaration – electromagnetic emissions The CRK-9000P is intended for use in the electromagnetic environment specified below. The customer or the user of the CRK-9000P should assure that it is used in such an environment. Emissions test Compliance Electromagnetic environment - guidance...
  • Page 107 Auto Ref/Keratometer CRK-9000P IEC 61000-4-5 to lines of a typical commercial or hospital ±2 kV lines to eart ±2 kV lines environment. to earth Voltage dips, short <5% U <5% U Mains power quality should be that interruptions (>95% dip in U (>95% dip of a typical commercial or hospital voltage...
  • Page 108 Auto Ref/Keratometer CRK-9000P Portable and mobile RF communications equipment should be used no closer to any part of the SYSTEM, including cables, than recommended separation distance calculated from the Conducted RF 3 Vrms equation applicable to the frequency of IEC 61000-4-6 150 kHz to 80MHz the transmitter.
  • Page 109 Auto Ref/Keratometer CRK-9000P Recommended separation distances between portable and mobile RF communications equipment and the CRK-9000P The CRK-9000P is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The customer or the user of the CRK-9000P can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications equipment ( transmitters ) and the CRK-9000P as recommended below, according to the maximum output power of the communications equipment.

  • Page 110: Service Information

     Descriptions of Problem: In detail Date of Purchase: Dealer’s Name: Dealer Address: Dealer Phone No.: Model No.: Serial No.: ( SHANGHAI HUVITZ recommends customers to fill up the following form after purchase and retain this manual as a permanent record of purchase.)
  • Page 111 Auto Ref/Keratometer CRK-9000P SHANGHAI HUVITZ Co., Ltd. Building 2, NO. 58, Lane 450, Xiaon Tel: +86-21-3630-7061 an Road, Fengxian, Shanghai, 20140 Fax: +86-21-3630-7064 1, China http://www.huvitz.com e-mail: svc@huvitz.com EU Representative Lotus Global Co., Ltd. 1 Four Seasons Terrace Tel: +0044-20-75868010 West Drayton，Middlesex...

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