Nidek Medical CP-670 Operator's Manual
  1. Manuals
  2. Brands
  3. Nidek Medical Manuals
  4. Projector
  5. CP-670
  6. Operator's manual
Nidek Medical CP-670 Operator's Manual

Nidek Medical CP-670 Operator's Manual

Chart projector
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
NIDEK
CHART PROJECTOR
Model CP-670
OPERATOR'S MANUAL

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the CP-670 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Nidek Medical CP-670

Summary of Contents for Nidek Medical CP-670

  • Page 1 NIDEK CHART PROJECTOR Model CP-670 OPERATOR’S MANUAL...
  • Page 2 * Specification and design are subject to change without notice for improvement HEAD OFFICE : 34-14, Maehama, Hiroishi-cho, Gamagori, Aichi 443-0038, Japan Telephone: (0533) 67-6611 Facsimile: (0533) 67-6610 TOKYO OFFICE : 6th Floor, Takahashi Bldg., No.2, 3-chome, Kanda-jinboucho (International Div.) Chiyoda-ku, Tokyo 101-0051, Japan Telephone: (03) 3288-0571 Facsimile: (03) 3288-0570...
  • Page 3 BEFORE USE, READ THIS MANUAL. This manual contains information necessary for correct and effective operation of NIDEK Chart Projector Model CP-670, and provides procedures for operation, cautions, specification, and procedures for maintenance. In this manual, IEC 60601 and UL standards are applied. For correct use, it is necessary that this manual, in particular the operating procedures, be thoroughly understood before using this instrument.

  • Page 4: Table Of Contents

    Table of Contents § 1 Page INTRODUCTION ......................1-1 1.1 Outline of Product ....................1-1 1.2 Classifications ......................1-1 1.3 Symbol Information ....................1-2 § 2 SAFETY ........................2-1 2.1 Operation ........................2-1 2.2 Storage ........................2-2 2.3 Installation ........................ 2-2 2.4 Wiring ........................

  • Page 5: Introduction

    The CP-670 also has many remarkable features such as a program function to present charts in a programmed order, various masking functions, etc. Also, when the instrument is synchronized with a NIDEK RT, it is possible to control whole operations with the control box.

  • Page 6: Symbol Information

    1 - 2 [Mode of operation] Continuous operation 1.3 Symbol Information This symbol means degree of protection against electric shock is for Type B instrument. This symbol on the main switch indicates that the power is ON. This symbol on the main switch indicates that the power is OFF. This symbol indicates that the alternating current should be applied to the instrument.

  • Page 7: Safety

    § 2 SAFETY In this manual, Signal Words are used to designate a degree or level of safety alerting, whose definitions are as follows. DANGER: Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. WARNING: Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

  • Page 8: Storage

    2 - 2 2.2 Storage NOTE • Do not store the instrument in a place where it may get wet or where poisonous gas or liquid is stored. • Avoid storing the instrument in an area with excessive heat, humidity or dust. To preserve the appearance or internal parts of the instrument, avoid direct exposure to sunlight.

  • Page 9: Wiring

    2 - 3 2.4 Wiring CAUTION • Be sure to use the wall outlet which meets the requirements of 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 10: Maintenance And Checks

    2 - 4 NOTE • If the instrument will not be used during an extended period of time, turn off the main switch and put the dust cover over the instrument. If dust settles on the optical parts, charts become hard to see. 2.6 Maintenance and Checks CAUTION •...

  • Page 11: Disposal

    2 - 5 2.7 Disposal NOTE • Follow local governing ordinances and recycling plans regarding disposal orrecycling of device components. Check the specified disposing method for the specific waste in advance, especially when disposing the batteries used in the remote control. •...

  • Page 12: Labels

    2 - 6 2.8 Labels The following labels provide safety information about each part. [Rear View] [Underside View] For 100V areas For 200V areas...

  • Page 13: Configurations

    § 3 CONFIGURATIONS Main Body Main Body Main Body Main Body Main Body Projection lens Remote control sensor Data transmission connector Power socket Fastener Focusing wheel Power switch Pilot lamp Fuse holders Focusing wheel Data transmission connector This is for focusing the chart on the screen. This is a connector to be used for synchro- nized operation with NIDEK AOS series or RT-2100S/U.
  • Page 14 3 - 2 Remote Control Remote Control Remote Control Remote Control Remote Control Remote control transmitter Lamp ON/OFF switch Chart changeover buttons Single letter mask button Sideward changeover buttons (Vertical line mask) Program (A, B, C) START buttons Horizontal line mask button Program NEXT button Program BACK button Visual acuity changeover buttons...
  • Page 15 3 - 3 Lamp ON/OFF button Visual acuity changeover This button turns ON and OFF the projection buttons (Horizontal line mask) lamp. These buttons change the visual acuity of the presented chart with the Horizontal line mask. Remote control transmitter When the chart is not masked, the chart will Operation commands are transmitted from automatically be masked within this opera-...

  • Page 16: Charts

    § 4 CHARTS [T-type] [T-type] [T-type] [T-type] [T-type] VA charts Astigmatism clock dial Children Letters Phoria Phoria with fixation Red/Green Vertical coincidence Snellen Schober Dots Minute stereo Binocular balance Numbers Polarized Red/Green Worth Cross grid Fixation...
  • Page 17 4 - 2 [U-type] [U-type] [U-type] [U-type] [U-type] VA charts Astigmatism clock dial Letters Snellen Numbers Vertical row of letters Horizontal row of letters Phoria Phoria with fixation Shematic eye Minute stereo Red/Green Children Vertical coincidence Dots Worth Binocular balance Fixation...
  • Page 18 4 - 3 [F-type] [F-type] [F-type] [F-type] [F-type] VA charts Cross grid Letters Snellen Children Astigmatism clock dial Vertical coincidence Horizontal coincidence Red/Green Landolt Phoria Schober Numbers Dots Minute stereo Binocular balance Worth Polarized Red/Green Fixation...
  • Page 19 4 - 4 [ISO-type] [ISO-type] [ISO-type] [ISO-type] [ISO-type] VA charts Binocular balance Snellen Landolt Polarized Red/Green Astigmatism clock dial Numbers Phoria with fixation Vertical coincidence Children Schober Minute stereo Red/Green Worth Dots Fixation...
  • Page 20 4 - 5 [UK-type] [UK-type] [UK-type] [UK-type] [UK-type] VA charts Letters Landolt Numbers Polarized Red/Green Astigmatism clock dial Children Muscle Minute stereo Red/Green Worth Dots Fixation Binocular balance...
  • Page 21 4 - 6 VA charts Use : Visual Acuity (VA) measurement Chart Varieties : TYPE T TYPE U TYPE F TYPE ISO TYPE UK Letters 0.05 - 1.5 400 - 10 0.05 - 1.2 120 - 4 Numbers 0.05 - 1.5 200 - 10 0.2 - 1.2 0.05 - 1.6...
  • Page 22 4 - 7 (a) Sharpness of all four marks ( ) are equal. Binocularly (b) Sharpness of two marks ( ) on Red side are equal. well balanced (c) Sharpness of two marks ( ) on Green side are equal. (d) Green is sharper on top and Red is sharper on bottom.
  • Page 23 4 - 8 When the patient does not see an ideal appearance, see the table below to reduce the shifting amount. Patient's vision Phoria Correction Add BO prism power until the vertical lines become Esophoria straight. Add BI prism power until the vertical lines become Exophoria straight.
  • Page 24 4 - 9 Muscle (for TYPE UK) Use : Heterophoria detecting test by fusional stimulus Auxiliary lens : Right eye 135º & left eye 45º polarizing filter Appearance : Right eye Left eye Binocular ideal (Orthophoria) For heterophoria eyes, vision deviates from the same as the test with Phoria with fixation. Phoria (for TYPE U) Use : Heterophoria detecting test Auxiliary lens : Right eye 135º...
  • Page 25 4 - 10 When the center of vertical lines and the horizontal lines are shifted, see the table below to reduce the shifting amount. Patient's vision Phoria Correction Add the BO prism power until the vertical line intersects Esophoria horizontal line at the center. Add the BI prism power until the vertical line intersects Exophoria horizontal line at the center.
  • Page 26 4 - 11 Vertical row of letters (for TYPE U) Use : Horizontal phoria detecting test (Von Graefe test) Auxiliary lens : 6 ∆ BU to the right eye Appearance : Right eye Left eye Binocular ideal When the two vertical lines do not make straight, see the table below to reduce the shifting amount.
  • Page 27 4 - 12 When the two horizontal lines do not make straight, see the table below to reduce the shifting amount. Patient's vision Phoria Correction The left row is higher. Right eye Add the BD prism power to the right eye until the two hyperphoria rows of letters are line-up.
  • Page 28 4 - 13 [Alignment of hyperphoria] Check the left frame and the right frame are positioned at the same height. When the frames are shifted, see the table below to align the frames. Patient's vision Phoria Correction The left frame is higher.
  • Page 29 4 - 14 [Alignment of hyperphoria] Check that the left frame and the right frame are horizontally set at the same position. When the frames are shifted, see the table below to align the frames. Patient's vision Phoria Correction The top frame is shifted to the left.
  • Page 30 4 - 15 When the cross is not positioned at the center of the rings, see the table below to reduce the shifting amount. Patient's vision Phoria Correction Cross is shifted to the right Add the BO prism power until the cross is positioned Esophoria at the center of rings.
  • Page 31 4 - 16 Stereoparallax between the mark and the bar with : 10’ Stereoparallax between the bar with and the bar with : 1’ Stereoparallax between the bar with and the bar with : 2’ Stereoparallax between the bar with and the bar with : 4’...
  • Page 32 4 - 17 Fixation Use : To detect horizontal phoria (Maddox test) Auxiliary lens : Horizontal maddox rod on the right eye Appearance : Right eye Left eye Binocular ideal If the white spot is shifted to the right or left of the bar, see the table below to reduce the shifting amount.
  • Page 33 4 - 18 If the white spot is shifted to the upper or lower of the bar, see the table below to reduce the shifting amount. Patient's vision Phoria Correction White dot is shifted to upper of the red Left-eye Add the BU prism power until the white dot is bar.

  • Page 34: Operating Procedures

    OPERATING PROCEDURES 5.1 Operation with Remote Control A. Turning ON the CP-670 Turn ON the power switch of CP-670. The projection lamp lights and the chart for 0.05 vision will be presented in 3 seconds. B. Changing the chart Press the appropriate chart changeover button on the remote control.* The charts have 33 varieties (See “§4 CHARTS”).
  • Page 35 5 - 2 • To use Single letter mask; Press To move the isolated letter position up or down, press To move the position right or left, press • To use Red/Green filter; Press The Red/Green filter covers the present chart.
  • Page 36 5 - 3 E. Program arrangement Program B and C has no preset program at the time of shipment. It is possible to arrange the original program in the following procedure. 1. Enter the Program arrangement mode. 1) Turn ON the power switch. 2) Press to turn OFF the lamp.

  • Page 37: Standard Program

    § 6 STANDARD PROGRAM 6.1 Program A for Operation with Remote Control Program A has the standard program as follows at the time of shipment. Program No. Chart 0.7 alphabetical chart (with masking) Red-green chart Dot chart Red-green chart 1.0 alphabetical chart (with masking) Binocular balance chart Minute stereo test chart...

  • Page 38: Maintenance

    § 7 MAINTENANCE ATTENTION: BEFORE MAINTENANCE OR CARE, READ INSTRUCTIONS. 7.1 Cleaning Main Body <Projection Lens> Blow dusts with a blower brush. If it is not clean enough, wipe with lens cleaning paper. <Cover and Screen> Wipe with a dry and soft cloth. For stubborn dirt, immerse a cloth in a neutral detergent, wring it well, and wipe the part.

  • Page 39: Replacement Of Fuses

    7 - 2 7.2 Replacement of Fuses * Be sure to use the provided spare fuses. 1. Turn OFF the power switch and pull out the power code. 2. Check the fuses. 1) P u s h a n d t u r n t h e f u s e h o l d e r s counterclockwise with a screwdriver and remove them.

  • Page 40: Replacement Of Batteries In Remote Control

    7 - 3 7.3 Replacement of Batteries in Remote Control * Use the batteries of LR6 or R6 for replacement. * The memory of programs remains even though the battery is replaced. 1. Remove the battery case cover at the back side of the remote control. 2.

  • Page 41: Common Problems And Corrections

    § 8 COMMON PROBLEMS AND CORRECTIONS If any problems occur during operation of the CP-670 or the remote control, check the following factors before putting it in for repair. Problems Contermeasure [Pilot lamp is not lit] - Check if the plug for the power cable is connected correctly.

  • Page 42: Specifications

    § 9 SPECIFICATIONS (F, T and U-types) Charts : 33 Distance of projection : 2.9 ~ 6.1m Chart magnification : 30× (when projected at 5m distance) Chart size : 275mm dia., 330 (W) × 225 (H)m (at 5m distance) Lamp : Halogen lamp (6V/20W : G4) (Life span: rated at 2000 hrs.) Masks...

  • Page 43: Appendix 1: Adjustment Of Projection Distance

    ADJUSTMENT OF PROJECTION DISTANCE APPENDIX 1 The projection distance is adjusted during installation. If the distance between the CP-670 and the screen has changed because of moving the installation place, or if you want to change the projection distance, it is necessary to adjust the projection distance with the provided test scale sheet.

  • Page 44: Appendix 2: Screen Fixing By Screen Angle Fixing Plate (Option)

    Spring Screen Spacer 2 pcs. As shown on the right, when positioning the CP-670 at 50cm left of the patient, use one Spacer 1 pc. spacer each for corners at the right top and right bottom of the fixing plate.
  • Page 45 A2 - 2 When mounting CP-670 on the pole of AOS right pole type, use two spacers for the corner of the right bottom and one each for corners on the right top and the left bottom to obtain the best angle (see the figure below).

Table of Contents