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Huvitz CDC-1 User Manual

Huvitz CDC-1 User Manual

Automatic visual acuity tester
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--------------------------------------------------------------------------------------------------------------------- CDC-1
User
Manual
1
USER MANUAL
Automatic Visual Acuity Tester
CDC-1

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Summary of Contents for Huvitz CDC-1

  • Page 1 --------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual USER MANUAL Automatic Visual Acuity Tester CDC-1...
  • Page 2 SHANGHAI HUVITZ reserves the right to make changes in its products or product specifications at any time and without prior notice, and is not required to update this documentation to reflect such changes.

  • Page 3: Table Of Contents

    --------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual CONTENTS INTRODUCTION ........................6 ..........................6 1.1. UTLINE OF RODUCT ............................6 1.2. NTENDED ............................6 1.3. LASSIFICATION ..........................6 1.4. ATIENT ESTRICTION ........................... 6 1.5. ATIENT EQUIREMENT ..........................7 1.6. PPLIED TANDARD INFORMATION REGARDING SAFETY................. 8 ............................
  • Page 4 CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- ....................... 28 7.2. NSTALLING THE ............................. 29 7.3. ONFIGURATION ..................29 7.4. ONNECTION WITH IGITAL EFRACTOR USING MENU MODE AND FUNCTIONS ................29 ................29 8.1. XECUTING AND PERATING THE ......................30 8.2. UNCTIONS IN THE ............................ 31 8.2.1.
  • Page 5 --------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual ........................48 9.19. INUTE TEREO MAINTENANCE ......................... 49 ........................49 10.1. EPLACEMENT BATTERY ............................49 10.2. LEANING ............................49 10.3. ISPOSAL TROUBLE SHOOTING ...................... 50 ..........50 11.1. ’ RESSED POWER SWITCH BUT THE SCREEN DOESN T WORK ..................

  • Page 6: Introduction

    Outline of Product 1.1. The Shanghai Huvitz Automatic Visual Acuity Tester (CDC-1) is a computerized chart presenting device that provides charts for refractive correction test and various functional tests such as cross cylinder, red/green, binocular balance, fusion and suppression, heterophoria, associated phoria, aniseikonia, stereopsis, and dominant eye test for heterophoria.

  • Page 7: Applied Standard

    --------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual - During the test, understand and follow instructions. When patient comply above conditions, would get a correct test result. 1.6. Applied Standard • IEC/EN 60601-1: MEDICAL ELECTRICAL EQUIPMENT – Part 1: General requirements for safety •...

  • Page 8: Information Regarding Safety

    CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- Information regarding Safety Introduction 2.1. Safety is everyone’s obligation and responsibility. Safe use of this device is important for everyone involved - installers, users, operators and device managers. It is a must to study and to master this user manual individually prior to installing, using, cleaning, repairing or controlling this device and its accessories.

  • Page 9: Safety Symbols

    --------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual Safety Symbols 2.2. The International Electro technical Commission (IEC) announced the symbols that warn when connecting electric medical device’s power or that warn against calamity that may occur. Classification and symbol are as follows. It indicates the year of manufacture and the manufacturer.
  • Page 10 CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- Stack direction (Direction de la pile) Fragile , handle with care (Fragile, manipuler avec soin) Stack layer limitation (Limiter la couche de pile) Use no hooks (N'utilisez aucun crochet) Alternating Current (Courant alternative) Direct Current (Courant continu) Consult instructions for use...

  • Page 11: Environmenta Related Matters

    --------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual UDI Information 2.3. UDI structure: (01) Manufacturer prefix number: 697046148; (11) manufacture date; (21) S/N code Environmenta related Matters 2.4. The environment to avoid in operation and storage. Place where device comes directly into contact with moisture (do not operate the device with wet hand) Place where device is exposed directly to sunlight.
  • Page 12 Where the machine is exposed to chemical material or explosive gas. Be cautious so that things like dust and metal do not fall inside the machine. Don’t disassemble or open the product. HUVITZ does not take responsibility for the possible problems Be careful not to block the fan of the machine.

  • Page 13: Safety Precautions

    For more information, inquire the distributor where you purchased the device. This device is utilized with the accessories provided by Huvitz. If consumer wants to use other manufacturers’ accessories, safety of use must be proven and confirmed by Huvitz or by the accessories’ manufacturer.

  • Page 14: Fcc Warnning

    CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- 17. Do not touch both signal input, output or other connectors, and the patient at the same time. 18. Use DC adapter and power cable supplied together to keep the reliability of the device. 19. IEC standard needs to be satisfied with in order to connect an outside device with input/output signal or other connector.

  • Page 15: Characteristics

    This device provides chart reverse. User can select white or black background color. ◼ This device can connect to Shanghai HUVITZ digital refractor in wired or wireless. Once they are connected, phoropter control panel can control charts and lens of phoropter conveniently.
  • Page 16 CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- WARNING Use only DC adapter and power cable provide by Shanghai HUVITZ. DC adapter provided by Shanghai HUVITZ is qualified for medical device. Manufacturer is NOT liable to any problem caused by using DC adapter or power cable which are not...

  • Page 17: After Using The Device

    --------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual Using the Device 4.2. Operation procedures may differ from users. Followings are the most basic operation sequence. ◼ Connect DC adapter to the device. Fix the adapter cable with cable tie to prevent it pulled off.

  • Page 18: Precautions

    CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- ◼ Do not use organic solutions such as alcohol, thinner, benzene, etc. to clean a surface of this product. It may damage the product ◼ In case of not using the device for a long time, please put a dust cover on the device after plugging off.
  • Page 19 --------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual ◼ Avoid places where the device could be affected by atmospheric pressure, humidity, temperature, ventilation, sunlight or by the air containing dust, salinity, sulfur and etc.. ◼ Install the device on a place stable and leveled ◼...

  • Page 20: Precautions For Stroage

    CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- Precautions for Stroage 5.3. When sotre this device, please note the belowings. ◼ Avoid places where the instrument is exposed to water vapor or moisture directly. ◼ Avoid places where the instrument is exposed to direct sunlight. ◼...

  • Page 21: Configration

    --------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual Configration Main Body 6.1. ① ② ③ ④ LCD WINDOW It displays charts, menu and other information. IR Signal Receiver Window Receive remote controller signal through this window (Do not block this window. Remote signal will be affected) OPERATION LED Indicates the operating status of the device.
  • Page 22 USB PORT Display images or video clips of USB stick insertecd on this port. Maximum 396 images/Video clips are available. CAN PORT Connect other devices such as Shanghai HUVITZ auto phoropter. POWER INPUT Connect DC adaptor for main power...

  • Page 23: Remote Controller

    --------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual WARNING Do not cover ventilation slits. Overheating can cause a product malfunction. Remote Controller 6.2. BUTTONS Buttons to excute chart, mask, program, menu, etc. IR SIGNAL WINDOW IR signal is transmitted through this window. (Do not block this window for normal operation)
  • Page 24 CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- BATTERY It is in the back of the remote controller. Open the battery cover to replace battery (AA 1.5V, 2ea). After change batteries the IR channel of remote controller reset to default cahnnel 1. ④ ⑤ ⑪ ⑩...
  • Page 25 --------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual Function Chart Charts for polarizing test are displayed differently on the display panel depending on the chart model BUTTON FUNCION LENS CHART Red/Green Filter Red/Green Test, Polar, Cross Cross grid Test for Cylinder distance Astigmatism Test...
  • Page 26 CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- Program Button BUTTON FUNCTION Executes the previous step of executing program ◀ Executes the next step of executing program ▶ ▪ Executes the first step of the program PGM 1 ▪ Pressing the button 3 times in a row executes programming PGM1 ▪...
  • Page 27 --------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual BUTTON FUNCTION Press this button to adjust up/down angle of the screen. Arrows appear to indicate tilting mode is activated. Use mask up/down button to move the screen. When it is aligned with a patient, press this button again to exit from the tilting mode. New screen angle is saved automatically when exit.

  • Page 28: Installiation

    CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- Installiation Preparation 7.1. Before installing this device, carefully check the followings in advance. ◼ Product’s model name ◼ Accessories – refer accessory list ◼ Foreign material on the screen After complete checking, fully understand user manual then begin install by following procedure.

  • Page 29: Configuration

    Connection with Digital Refractor 7.4. This device can be connected to Shanghai HUVITZ or HUVITZ Digital Refractor. For wure connection it supports CAN communication. For wireless connection it supports IR, WIFI and BLUE TOOTH connection. For more information refer Digital Refractor user manual.

  • Page 30: Functions In The Meun Mode

    CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- ② Selecting the Menu Press button to set or select the menu item. ③ Back to the Previous Page When there is no back button, press button instead. It will exit the current menu or back to the previous page.

  • Page 31: Vision Test

    3 second, and can draw a curved line in 10 second, it can be considered as correct answers. CDC-1 Color Vision Test would not produce the same result owing to the property of LCD panel. Use CDC-1 test result as examinee’s guide and if necessary consult with an eye specialist.
  • Page 32 CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- ▪ Screening Test Start to find color vision abnormality. Ask a question on the screen After the examinee answers, press button to see a list of possible answers button to select patient’s answer from the list. And press to confirm.
  • Page 33 --------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual ◼ Contrast Test This test is designed to measure the ability of recognizing an object in surroundings having a low illumination or similar colors. Usual acuity test uses charts consist of black dark letters seen clearly against high illumination of white background.

  • Page 34: Movie/Photo

    CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- Movie/Photo 8.2.2. In this mode you can load image/video clip from internal memory or external USB. Use arrow buttons of remote controller select this function and press to execute. Use arrow buttons to select image/video file want to play and press to select.

  • Page 35: Setting

    --------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual Setting 8.2.3. ◼ IR Channel ✓ Change IR channel ✓ If changed IR channel in the device, need to change the channel of remote controller too. ✓ To change remote controller IR channel, while pressing button, press button.
  • Page 36 ▪ By pressing a button of remote contorller or control panel of digital refractor, it exits from sleep mode ◼ Wi-Fi Set Wi-Fi to connect to Huvitz Co. Ltd Phoropter Press “Scan” button to find Wi-Fi supporting devcie around. NOTE ▪...
  • Page 37 Adjust the size of polarized chart in % NOTE ▪ When use CAN port to connect with Huvitz Digital Refractor, need to select correct refractor type. ▪ Use CAN cable provided by Shanghai HUVITZ ▪ For more information, please refer user manual of digital refractor.

  • Page 38: Other Functions

    CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- Other functions 8.3. Adjusting Contrast Sensitivity 8.3.1. Charts are displayed with default contrast set in contrast menu. To change contrast during test, press CONTRAST button on remote controller When press contrast button, new contrast value appears for a short time.

  • Page 39: Set Remote Controller Ir Channel

    --------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual How to edit P2 program ① Press P2 button 3 times, the screen displays “Programming PGM2” ② Select one chart then press right side button of ◀PROGRAM▶ to save. ③ Select the next chart then save it in the same way with ②...

  • Page 40: Optometric Test Using The Acuity Tester

    CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- Optometric Test Using the Acuity Tester Cylinder Axis Test 9.1. Title Content Purpose To determine the correcting astigmatic axis roughly. Chart Aux. Lens None ① Occlude one eye that’s not to be examined. ② Add spherical lens power as much as the patient can read numbers around the chart.

  • Page 41: Binocular Cylinder Axis Test

    --------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual Binocular Cylinder Axis Test 9.3. Title Content Purpose To determine the correcting astigmatic axis roughly. Chart Aux. Lens Polarized filter ① Add spherical lens power as much as the patient can read numbers around the chart.

  • Page 42: Red/Green Test

    CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- Red/Green Test 9.5. Title Content Purpose To determine the correcting spherical power Chart None Aux. Lens Polarized Filter Cross Cylinder(Fixed at 90) ① (Occlude one eye that’s not to be examined). ② Add about 0.5D for fogging if necessary.

  • Page 43: Cross Cylinder Test For Power

    --------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual Cross Cylinder Test for Power 9.7. Title Content Purpose To refine the correcting cylinder power Chart Aux. Lens Jackson Cross Cylinder(±0.25 or ±0.50) ① Occlude one eye that’s not to be examined. ② Place the JCC lens before the eye such that its axes straddle at 90 degrees angles the correcting cylinder axis.

  • Page 44: Worth 4 Dot Test

    CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- 9.10. Worth 4 Dot Test Title Content Purpose To Check the fusion and suppression Chart Aux. Lens Red/Green ① Open the both eyes. ② Procedure Place the red filter before the right eye and the green filter before the left eye.

  • Page 45: Coincidence Test

    --------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual 9.13. Coincidence Test Title Content Purpose To check the aniseikonia and measure the lateral and vertical phoria Chart Aux. Lens Polar ① Open the both eyes. ② Place the polarizing filters before the eyes, 135 degree on the right and 45 degree on the Procedure left.

  • Page 46: Maddox Rod Test & Thorington Test

    CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- 9.16. Maddox Rod Test & Thorington Test Title Content Purpose To measure the phoria Chart Vertical Maddox Rod Test Vertical Maddox Rod on right Aux. Lens Horizontal Maddox Rod Test Horizontal Maddox Rod on left ① Open the both eyes.

  • Page 47: Zeiger Test

    --------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual 9.17. Zeiger Test Title Content Purpose To measure the phoria Chart Aux. Lens Polar ① Open the both eyes. ② Place the polarizing filters before the eyes, 135 degree on the right and 45 degree on the Procedure left.

  • Page 48: Minute Stereo Test

    CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- 9.19. Minute Stereo Test Title Content Purpose To measure the fine depth perception of stereoscopic vision. Chart Aux. Lens Polar ① Open the both eyes. ② Place the polarizing filters before the eyes, 135 degree on the right and 45 degree on the Procedure left.

  • Page 49: Maintenance

    --------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual 10. Maintenance 10.1. Replacement battery ① Slide open the battery cover of remote controller. ② Replace old battery to the new one and close cover. NOTE Please make sure the direction of (+), (-). Use battery LR6(AA) 1.5V .

  • Page 50: Trouble Shooting

    CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- 11. Trouble Shooting 11.1. Pressed power switch but the screen doesn’t work ① Check DC adapter cable to the device. When the cable is not completely pluged in, it doesn’t turn on. ② Check AC cable is pluged on power outlet. Check power outlet swtich if it has one.

  • Page 51: Visual Acuity Test Results In Overcorrection Or Undercorrection

    --------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual 11.5. Visual acuity test results in overcorrection or undercorrection ① The test distance could be changed. Measure the test distance and adjust it to within the specification of this device. 11.6. Red/Green test is overcorrection or undercorrection When it is possible to adjust the brightness of inspection room.

  • Page 52: Accessories

    CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- 12. Accessories ② ③ ④ ① ⑤ ① Remote Controller ② Batteries(AA) ③ DC Adapter and Power Cable 1ea each ④ User Manual ⑤ Dust Cover...

  • Page 53: Product Specification

    --------------------------------------------------------------------------------------------------------------------- CDC-1 User Manual 13. Product Specification LCD Type Color TFT-LCD Resolution 800x3(RGB) x 480 White Luminance 200+-20 Chart window size 178*130 Input:100-250 V~, 1.5-0.75 A, 50-60 Hz DC Adapter Output:12V 5A Power Consumption 12.5W Max Size 640(L)*580(W)*780(H) Weight 22kg Test Distance 0.85m +- 0.2m...
  • Page 54 CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- ▪ Dot, Row, Column Masking Filter ▪ Red/Green Filter Software version V1.0.0 Hardware version V100A...

  • Page 55: Service Information

    14. EMC information Manufacturer announcement – electromagnetic waves trouble Electromagnetic waves trouble CDC-1 should be used in the below mentioned electromagnetic wave environment. CDC-1 purchaser or user needs to confirm whether CVS is used in this type of environment. Trouble test...
  • Page 56 CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- Electromagnetic waves tolerance CVS is to be used in the below mentioned electromagnetic wave environment. CVS purchaser or user needs to confirm whether CVS issued at this environment. Tolerance test IEC 60601 Appropriateness level test conditions Conductivity RF...
  • Page 57 Repair parts for this device will be kept for 7 years. When couldn’t reach to the distributor where you purchased the product, please contact to Shanghai Huvitz’s service team directly by referring to the address and telephone numbers below. Tel: +86-21-3630-7061 Shanghai Huvitz Co., Ltd.
  • Page 58 CDC-1 ----------------------------------------------------------------------------------------------------------------------------------- Revision History Date Version Content 2021.09 V1.0 First Issue 2022.6.28 V1.1 Adding explanation of symbols, applied standardand, EMC information, update EU Rep. address.

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