Ametek Reichert ClearChart 4P User Manual Download

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13785-101 Rev. F

Introduction

Congratulations on your purchase of the Reichert

ClearChart

4P.

The ClearChart 4P is a remote controlled digital acuity system that has been designed to provide a

comprehensive, versatile, and convenient system for measuring visual acuity.

This User’s Guide is designed as a training and reference manual for operation, maintenance, and

troubleshooting. We recommend that you read it carefully prior to use and follow the instructions

in the guide to ensure optimum performance of your new instrument. Properly trained eyecare

professionals such as ophthalmologists, optometrists, opticians and eye care technicians should

operate this instrument.

Please retain this manual for future reference and to share with other users. For additional copies of this

manual or questions related to the ClearChart 4P contact your local authorized Reichert dealer or contact

our Customer Service department directly at:

Tel: 716-686-4500

Fax: 716-686-4555

E-mail: [email protected]

Indications for Use

The device provides images and charts, including those with letters and symbols in graduated sizes,

intended for measuring visual acuity and determining patient subjective refraction.

Contraindications

None.

Summary of Contents for Reichert ClearChart 4P

Page 1: ...ClearChart 4P Polarized Digital Acuity System User s Guide ...

Page 2: ...hert Inc reserves the right to make changes in the product described in this manual without notice and without incorporating those changes in any products already sold ISO 13485 Certified Reichert products are designed and manufactured under quality processes meeting ISO 13485 requirements No part of this publication may be reproduced stored in a retrieval system or transmitted in any form or by a...

Page 3: ...17 Remote Control 18 Remote Power 18 Remote Control Layout 19 Configuring the ClearChart 4P 20 Optotypes 24 Size Progressions 25 Remote Control Functions 27 Video and Image Files 36 Video and Image File Feature 36 Video and Image File Parameters 36 Video Files 36 Importing and Accessing Video Files 36 Organizing Video Files 37 Deleting Video Files 37 Image Files 38 Importing and Accessing Image Fi...

Page 4: ...PMENT MUST ONLY BE CONNECTED TO A SUPPLY MAINS WITH PROTECTIVE EARTH OR DAMAGE TO THIS INSTRUMENT AND OR INJURY TO THE OPERATOR OR PATIENT MAY OCCUR WARNING ENSURE THAT THE VOLTAGE APPLIED TO THE UNIT IS WITHIN THE RANGE AS THE VOLTAGE INDICATED ON THE DATA PLATE OR DAMAGE TO THE UNIT MAY OCCUR WARNING THIS INSTRUMENT MUST BE PLUGGED INTO AN OUTLET WITH AN EARTH GROUND DO NOT REMOVE OR DEFEAT THE ...

Page 5: ...N ANY PART OF THIS INSTRUMENT AS DAMAGE TO THE UNIT MAY OCCUR SEE MAINTENANCE SECTION FOR DETAILED CLEANING INSTRUCTION CAUTION USE OF AMMONIA BASED CLEANERS ON THE LIQUID CRYSTAL DISPLAY LCD MAY CAUSE DAMAGE TO THE DISPLAY SEE MAINTENANCE SECTION FOR DETAILED CLEANING INSTRUCTION CAUTION PORTABLE AND MOBILE RF COMMUNICATIONS EQUIPMENT CAN EFFECT MEDICAL ELECTRICAL EQUIPMENT CAUTION THE INTERNAL C...

Page 6: ...ture Manufacturer Waste of Electrical and Electronic Equipment Compliance to Medical Device Directive 93 42 EEC Authorized to mark given by Intertek ETL Semko for conformance with electrical standards Fragile Contents in Shipping Container handle with care Keep Dry Package shall be kept away from rain This Way Up Indicates correct upright position of package Authorized Representative in European C...

Page 7: ...new instrument Properly trained eyecare professionals such as ophthalmologists optometrists opticians and eye care technicians should operate this instrument Please retain this manual for future reference and to share with other users For additional copies of this manual or questions related to the ClearChart 4P contact your local authorized Reichert dealer or contact our Customer Service departme...

Page 8: ...P N 13785DL and remote control P N 13783 with Lin ear Decimal progression and Decimal Notation The items listed below should be included in the packaging container ClearChart 4P 13785AG 13785SE or 13785DL Remote Control P N 13781 13782 or 13783 Two AAA batteries P N 13950000 902 Power Cords P N WCBL10018 and P N 13375 409 or P N WCBL10027 and P N 13775 410 Articulating Wall Mount with Screws P N 1...

Page 9: ...ce saving device to increase the patient testing distance when the room does not permit a direct throw arrangement Typically your ClearChart 4P will be positioned higher than patient eye level so that the examiner will not interfere with the patient s view of the ClearChart 4P Arrange the ClearChart 4P and mirror so that the ClearChart 4P can be seen by the patient through the mirror 1 Find an app...

Page 10: ...AT PANEL DISPLAYS THE MAXIMUM LOAD CA PACITY IS 30 POUNDS WARNING IF MOUNTING TO A WALL OF WOOD STUD CONSTRUCTION BE SURE THAT MOUNTING BOLTS ARE ANCHORED TO THE CENTER OF THE STUDS WARNING ALWAYS HAVE SOMEONE ASSIST YOU TO LIFT AND POSITION YOUR EQUIPMENT WARNING TIGHTEN SCREWS AND BOLTS FIRMLY BUT DO NOT OVER TIGHTEN OVER TIGHTENING CAN DAMAGE THE ITEMS AND GREATLY REDUCE THEIR ABILITY TO HOLD P...

Page 11: ... edge to edge stud finder is highly recommended Use a level to draw a vertical line down the center of the stud Refer to Figure SU 06 3 Place the wall plate on the wall as a template and mark the center of the three mounting holes Make sure the mounting holes are on the stud center line Refer to Figure SU 06 4 Drill three 3 mm 1 8 in diameter holes 50 mm 2 in deep Make sure that the wall plate is ...

Page 12: ...ad of the equipment and all attached hardware and components 1 Remove the part of the mount that attaches to the back of the ClearChart 4P from the part of the mount that attaches to the wall by sliding that part up and removing it Refer to Figure SU 05 2 Use the Wall Plate as a template to mark the mounting holes on the wall Refer to Figure SU 09 3 Drill two 6 mm 1 4 in diameter holes 70 mm 2 in ...

Page 13: ...ClearChart 4P by hand tightening the 4 screws into the outer screw holes on the back of the case of the ClearChart 4P Refer to Figure SU 10 Note The screws must make at least three full turns into the mounting hole and fit snugly into place Do not over tighten 3 Slide the ClearChart 4P onto the mounting bracket that is already attached to the wall so the square slides into the slot on the mount Re...

Page 14: ...Refer to Figure SU 14 Figure SU 14 Angling Bracket 120 15º Maintenance Once you have mounted the bracket and the ClearChart 4P check that they are secure and safe to use Check that the screws are fixed well every two months If you have any concerns about the installation contact Reichert Technical Service Contact information can be found on the back cover of this User s Guide Installation Features...

Page 15: ...ure SU 15 Power Cord and On Off Switch Power Cord On Off Switch Disconnection of Input Power At any time the power switch can be set to OFF The unit does not have a power down sequence To terminate operation of the ClearChart 4 press the ON OFF switch to the OFF position O Note If the ClearChart 4P is intended to be OFF for an extended period of time the ClearChart 4P can be disconnected from powe...

Page 16: ...elessly connected using a Bluetooth serial adapter Wired communication between the ClearChart 4P and the digital refraction system requires connection of a cable between the serial port on the ClearChart 4P and the digital refraction system Bluetooth Connection Wireless communication between the ClearChart 4P and a Reichert digital refraction system requires connection of a Bluetooth device Either...

Page 17: ...nect the other end of the Null Modem Cable to the port on the bottom of the ClearChart 4P If using the USB Power Adaptor connect it to the USB port on the bottom Refer to Figure SU 19 Figure SU 19 Connect USB Power and Null Modem Cable Null Modem Cable USB Power Adaptor If using an A C power adaptor plug the adaptor to a properly volted outlet Connect the power cord to the Bluetooth Dongle Refer t...

Page 18: ...ate each remote control by presenting a specific optotype size progression and notation ClearChart 4P P N 13785AG Acuity Grade remote control with LogMAR Progression and Decimal Notation ClearChart 4P P N 13785SE Snellen remote control with Standard progression and Snellen English Notation ClearChart 4P P N 13785DL Decimal Linear with Linear progression and Decimal Notation 13781 Decimal LogMAR 13...

Page 19: ...hart LEFT ARROW Function depends on test chart DOWN ARROW Function depends on test chart MENU Menu options and settings CHILD Optotypes for Children OPTO Change Optotype Selection CONT Contrast Sensitivity Testing Sine Wave Grating ILLUM Change Background Illumination COLOR Color Tests PLATE License Plate Tests U K License Plate Style MAX Increase Contrast MIN Decrease Contrast ETDRS ETDRS Test Ch...

Page 20: ...and Russian The default language is English When you are finished press the DOWN arrow ROOM Using the LEFT RIGHT arrows on your remote select DIRECT THROW or MIRRORED based on the configuration of your office When you are finished press the DOWN arrow UNITS Using the LEFT RIGHT arrows on your remote select METRIC or ENGLISH units based on which units you use to measure your refraction distance Whe...

Page 21: ...tance from the mirror to the screen Press the DOWN arrow after each distance is entered OPTOTYPES The EDIT LIST option allows the user to select the Optotypes that will be readily available when pressing the OPTO button on the remote Use the UP DOWN arrow buttons to navigate through the list Press the OPTO button to select or deselect the optotypes that you wish to display An asterisk will indicat...

Page 22: ...is 5 characters When you are finished press DOWN arrow RED GREEN ADJUST Using the LEFT RIGHT arrows on the remote select No Change Recalibrate or Factory Default If you choose Recalibrate press the DOWN button to enter the adjustment mode The R G and B blocks on the left side of the screen are used for the Red color adjustment To adjust red R use the MIN and MAX buttons to acquire the desired tone...

Page 23: ...ow a black screen to extend the lifetime of the display Pressing any button will re activate the screen MADDOX LIGHT ADJUSTMENT CAUTION DO NOT ADJUST THE BACKGROUND ILLUMINATION BACKGROUND ILLUMINATION SHOULD BE ADJUSTED ONLY BY A TRAINED TECHNICIAN AND WITH THE USE OF A LIGHT ME TER TO VERIFY CALIBRATION OF ILLUMINATION LEVELS The Maddox LED light intensity can be adjusted by accessing the defaul...

Page 24: ...he letter set do not pose a problem of memorization The Sloan Letter Set consists of these letters C D H K N O R S V Z HOTV is an additional letter set offered in the ClearChart 4P The Cyrillic letters are representative of the characters used in the Golovin Svitsev Acuity Chart Ш Б М Н К Ы И The tumbling E s are presented in four positions g e f h Landolt C s are presented in eight positions g f ...

Page 25: ...1 60 1 25 1 00 0 80 0 63 0 50 0 40 0 32 0 25 0 20 0 16 0 125 0 10 0 08 0 063 0 05 20 10 20 12 5 20 16 20 20 20 25 20 32 20 40 20 50 20 63 20 80 20 100 20 125 20 160 20 200 20 250 20 320 20 400 6 3 0 6 3 8 6 4 8 6 6 0 6 6 75 6 9 5 6 12 6 15 6 19 6 24 6 30 6 38 6 48 6 60 6 76 6 96 6 120 The Standard Progression presents visual acuity sizes as Snellen fractions Snellen Snellen Decimal Snellen Metric ...

Page 26: ...6 Size Progressions continued The Linear Decimal progression is based on a 10 10 scale Linear Decimal 0 05 0 10 0 15 0 20 0 30 0 40 0 50 0 60 0 70 0 80 0 90 1 00 1 20 1 50 2 00 Installation Features Functions continued ...

Page 27: ...l be able to change optotypes sizes lines and line presentation by pressing other buttons on the remote To exit the RED GREEN mode simply press this button again HOV HOV Note At larger optotype sizes there will be a limit of how many lines can be displayed This is the LEFT ARROW button It has multiple functions It can be used to scroll through a sequence of optotypes similar to randomization displ...

Page 28: ...YPES Kolt Type Symbols Children s Shapes Allen Symbols Pigassou Osterberg Sheridan Gardener Lower Case Letters 4 PRESENTATION Single Line Double Same Double Decreasing Triple Same Triple Decreasing Quadruple Same Quadruple Decreasing Single Letter Column Column Uneven 5 PROGRESSION LogMAR Standard Decimal 6 MAX CHARACTERS 1 2 3 4 5 6 7 DISPLAY OPTOTYPE SIZE No Display Display 8 SCREEN SAVER 1 TO 3...

Page 29: ...The number in the upper right corner displays the frequency Level of contrast in the sine wave target can be adjusted using the MIN and MAX buttons Contrast can be adjusted to fifteen different levels 100 63 45 32 22 16 11 7 9 5 6 4 0 2 8 2 0 1 4 1 0 0 7 The lower left num ber displays the contrast level by percentage RIGHT LEFT arrow buttons can be used to rotate the image angle Pressing the CONT...

Page 30: ...cal H R R Psuedoisochromatic Plates developed by Le Grand H Hardy M D Gertrude Rand PH D and M Catherine Rittler B A in 1955 The H R R images can be used as a tool to identify the need for further color vision screen ing Press the RIGHT arrow button to display each chart in the sequence Press the COLOR button again to exit the test The first four charts in the sequence A B C and D are demonstratio...

Page 31: ...e used during the initial set up of the ClearChart 4P to enter the refracting distance and adjust red green colors for filters and suppression tests These buttons are also used to adjust contrast levels of the sine wave grating chart for contrast sensitivity testing and to adjust contrast levels of optotypes ETDRS The ETDRS button accesses optotypes with sloan letters and logmar progression that m...

Page 32: ...the UP DOWN arrow buttons Pressing the ASTIG button again exits the astigmatism tests MKH The MKH button displays a series of eleven different test charts used for phoria and stereo vision testing Two examples of the MKH charts are presented below Press the RIGHT arrow button to move through the sequence of charts Press the MKH button again to exit the MKH test charts Installation Features Functio...

Page 33: ...functions that have a se quence of two charts by pressing any of the line presentation buttons at the bottom of the remote The test charts this feature applies to are Schober Fixation Dot and Lines and Crowding Bars SCHO The Schober tests for binocular balance and suppression testing can be accessed by pressing the SCHO button Press the button once to display the first chart in the se quence and p...

Page 34: ...n again SUPP The SUPP button presents an alternative suppression test with white letters on a black background The first button press will display a line of 5 letter optotypes with the first and last optotypes in red and green reading from left to right A second button press will change the position of the red and green opotytpes Press SUPP again to exit the test P MUSC The P MUSC button displays ...

Page 35: ... will change the number of lines presented on the screen from 1 to 4 Note At larger optotype sizes there will be a limit of how many lines can be dis played This button will present lines of optotypes descending in size Multiple presses of this button will change the number of lines presented on the screen from 1 to 4 Note At larger optotype sizes there will be a limit of how many lines can be dis...

Page 36: ... framerate is 30 fps The maximum bitrate is 50 Mbps A total of 290 MB of space is available for uploadable video files Video Files Importing and Accessing Video Files With the ClearChart 4P powered on press the MENU button on the remote Then press the MOVIE button Two selections will be presented on the display Video Files and Video List To import a video select Video Files using the right arrow b...

Page 37: ...e selected videos and scroll through them using the left and right arrow buttons Organizing Video Files The MAX and MIN buttons on the remote can be used to move the position of a video file in the Video List Pressing the MAX button will move a video file up in the list and the MIN button will move the video file down the list Deleting Video Files Video files may be deleted by pressing the MENU an...

Page 38: ...eturn to the screen with the image file management options Image Files Image List Screen Saver Logo Use the UP or DOWN arrow buttons to scroll to Image List and then press the right arrow to open the list Use the up down arrows to highlight the image file you wish to display Press the EDU button to select or deselect an image An asterisk will appear next to the name of the image files that have be...

Page 39: ... be named sslogo jpg Go to the image management menu using the MENU and EDU buttons and select the Screen Saver Logo option Three selections accessible with the left right arrow buttons will be displayed Image Files Image List and Screen Saver Logo The Logo option displays the screen saver image most recently selected whether it was a new image that was imported or the ClearChart 4P default screen...

Page 40: ... safe for plastic lenses Refer to Figure MM 01 Fuse Replacement WARNING DISCONNECT POWER BEFORE ATTEMPTING TO REMOVE THE FUSES OR SERIOUS INJURY OR DEATH MAY OCCUR Replace the fuses in the Power Input Module with the fuses indicated in the Specifications section of this manual 1 Turn the power to the unit off and unplug the device 2 Press down on the tab in the middle of the Fuse Holder to release...

Page 41: ... on Not plugged into an outlet with power Plug unit into a properly volted outlet Power cord not fully pushed into the power input receptacle Fully install power cord Fuse s is blown Replace the fuse s Unit will not respond to remote control IR Detector is dirty Clean the IR detector Refer to the Cleaning Mainte nance section of this manual Batteries in remote are low Replace the batteries in the ...

Page 42: ... 4 F to 50 C 122 F Relative Humidity 10 to 80 non condensing Atmospheric Pressure 70 20 7 in Hg to 106 kPa 31 3 in Hg Exposure to extreme temperature conditions indicated above must not exceed 15 weeks Expected Service Life The expected service life for this instrument is 7 years Disposal This product does not generate any environmentally hazardous residues At the end of its product ser vice life ...

Page 43: ...shock particularly regarding allowable leakage currents and reliability of the protective earth connection No applied parts per the noted standards The ClearChart 4P is classified as IPX0 Equipment IPX0 equipment is equipment enclosed without protection against ingress of water According to the mode of operation the ClearChart 4P is a continuous operation instrument The ClearChart 4Pdoes not have ...

Page 44: ...y interference in nearby electronic equipment Harmonics IEC 61000 3 2 Class A The ClearChart 4P is suitable for use in all establish ments including domestic establishments and those directly connected to the public low voltage power sup ply network that supplies building for domestic power Flicker IEC 61000 3 3 Complies Note The emissions characteristics of this equipment make it suitable for use...

Page 45: ...00 4 2 Floors should be wood concrete or ceramic tile If floors are synthetic the r h should be at least 30 2kV 4kV 8kV Contact 2kV 4kV 8kV 15kV Air 2kV 4kV 8kV Contact 2kV 4kV 8kV 15kV Air Compliance Level Surge IEC 61000 4 5 Mains power quality should be that of a typical residential commercial or hospital environment 0 5kV 1kV Differential 0 5kV 1kV 2kV Common 0 5kV 1kV Differential 0 5kV 1kV 2...

Page 46: ...equipment marked with the following symbol Radiated RF IEC 61000 4 3 80 MHz to 2 7 GHz 3V m 80 MHz to 2 7 GHz 10V m E1 3 V m E1 10 V m Note 1 At 80 MHz and 800 MHz the higher frequency range applies Note 2 These guidelines may not apply in all situations Electromagnetic propagation is affected by absorption and reflection from structures objects and people Field strengths from fixed transmitters s...

Page 47: ...w according to the maximum output power of the communications equipment Max Output Power of Trans mitter W Separation m 150kHz to 80 MHz d 3 5 V1 Sqrt P Separation m 80 to 800 MHz d 3 5 E1 Sqrt P Separation m 800MHz to 2 5GHz d 7 E1 Sqrt P 0 01 0 1166 0 1166 0 2333 0 1 0 3689 0 3689 0 7378 1 1 1666 1 1666 2 3333 10 3 6893 3 6893 7 3786 100 11 6666 11 6666 23 3333 For transmitters rated at a maximu...

Page 48: ...he recommended separa tion distance calculated from the equation ap plicable to the frequency of the transmitter Recommended Separa tion Distance d 6 E Sqrt P Where P is the maxi mum power in watts d is the minimum separation distance in meters and E is the immunity level 385 380 390 TETRA 400 Pulse Modulation 18 Hz 1 8 0 3 27 27 V m at 0 3 m 450 430 470 GMRS 460 FRS 460 FM 5 kHz deviation 1 kHs s...

Page 49: ...luetooth Frequency Band 2 4020 2 4800 GHz Modulation Method GFSK Basic Mode 4 DQPSK 8 DPSK EDR Mode Channel Access Protocol FHSS Frequency Hopping Spread Spectrum RF Output Power Class 1 18 dBm typical up to 20dBm Care must be taken when using other equipment operating under the same frequency band above or any other RF band The ClearChart 4P may affect or be affected by other equipment while oper...

Page 50: ...NT USED WITH THE CLEARCHART 4P MUST BE COMPLIANT WITH AN APPLICABLE IEC OR ISO SAFETY STANDARD Cable Reference Length Description 16200 440 11m 35ft DB9 M F Null Modem Cable shielded Any 15m 49 ft 2500 pF MAX Capacitance DB9 M F Null Modem Cable shielded 13785 101 Rev F 50 ...

Page 51: ...dling of the product Patent Warranty If notified promptly in writing of any action brought against the purchaser based on a claim that the instrument infringes a U S Patent Reichert will defend such action at its expense and will pay costs and damages awarded in any such action provided that Reichert shall have sole control of the defense of any such action with information and assistance at Reich...

Page 52: ...6 686 4555 Email reichert information ametek com www reichert com Authorized European Representative AMETEK GmbH Business Unit Reichert Carl von Linde Strasse 42 85716 Unterschleissheim Munich Germany Email info reichert de ametek com Tel 49 89 315 8911 0 Fax 49 89 315 891 99 ISO 13485 Certified 13785 101 Rev F 2018 08 30 ...

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