Auto Ref/Keratometer GRK-8000
Contents
1. 5 Prepare the patient 1 Wipe the forehead rest and chinrest that A ji Description Indicates cylindrical power by reading Indicates cylindrical power by reading Cylinder data is indicated by reading when the refractive error is positive for any axis angle Indicates the cylindrical power by reading in other cases contact the patient with clean absorbent oneadrest wa cotton or gauze dampened with rubbing lt alcohol If a stack of chinrest paper is fixed onthe chinrest remove one sheetof paper Chinrest 2 Instruct the patient to take off glasses or contact lenses and sit on a chair 10 3 Have the patient place his her chin on the chinrest as deeply as possible and his her forehead on the forehead rest lightly 4 Adjust the height of the chinrest by pressing the chinrest up down button until the center level of the patient s eye aligns with the eye level marker Before adjusting the height of the chinrest let the patient know that the chinrest moves up and down When the chinrest is at the upper or lower mechanical limit the upper limit indicator or lower limit indicator is displayed on the screen 6 Start measurement See 2 3 AR refractive error Measurements for details of measurements Instruct the patient not to blink during measurement Additionally instruct the patient not to blink or open his her eyes Immediately before measurement to avoid measurement failure Instru2. Clean the chinrest for each patient 13 Eye level marker Used as a guide for the patient s eye level during measurement The height of the chinrest should be adjusted so that the center level of the patient s eye roughly aligns with this line 14 Chinrest up down button Moves the chinrest up or down 15 PD window An LED is provided to detect the PD value Underside view 16 Power inlet 16 Power inlet Adetachable power cord is connected here 1 5 Measurement Screen Layout 19 Auto 17 Measure 20 Auto measure icon mode 16 CYL mode Facts tracking icon dapallontseye 15 Focusing indicator 2 Reset button 14 Menu button 13 Measuring window limit 3 Fundus circle 4 Circle display button 5 Chinrest limit 12 Measure mode button 6 Auto tracking button 11 CYL mode button 7 History button 8 Measured 10 Print button values 9 PD 1 Patient s eye Indicates the right or left eye of the patient 2 Reset button 65 Rest the device to initial state 3 Fundus circle After a measurement you can observe the stored retina image by pressing the circle display key If the image is an incomplete circle the measurement is not reliable and should be made once again Incomplete retina images may be caused by eye blinking or by eye movement Sometimes it is because the signal reflected from the retina is too weak or the pupil diameter is less than 2 0mm or the dust in t
3. Corp nS 232 Move the amp or ip arrow to the item Date nmi i Tine a and pressor to adjust the data press 4 or to save data A SPECIFICATIONS AND ACCESSORIES 2 10 Setting the company Press to enter the interface of company setting setting the company Mosh Ce SE LCS 2 tem Time Corp RS 232 AS i jk Imnopgrstuvw tes SO shift Company address Entry Left click Current entry moves towards left by one character Entry Right click Current entry moves towards right by one character Characters Left click amp Characters box moves to left by one Characters right click a Characters box moves right by one Line Feed Cursor in characters box moves down by one line Save MM Save the settings data Exit Save data and exit to the measurement interface 3 1 Specifications 18 Measurement of refractive error AR measurement Spherical power S 20 00 to 20 00D VD 12mm 0 12 0 25D increments Cylindrical power C Oto 10D 0 12 0 25D increments Cylinder axis A 0 to180 1 increments Vertex distance VD 0 12 13 75 15mm Minimum pupil diameter measurable 2mm Chart Auto fogging system Accuracy The accuracy specifications are based on the results of eye model testing performed in accordance with 010342 Ophthalmic Instruments Eye Refractometers Item Measurement range Step Tolerance 0 10 00D 0 25D Spherica
4. Increase the separation between the devices Connect the device to an outlet on a circuit different from that to which the other device s are connected Consult the manufacturer or field service technician for help The device is Class A CISPR11 classification It is allowed in domestic establishments when used under jurisdiction of a health care professional Never use the device with cables or accessories other than the designated ones Malfunction caused by improper electromagnetic compatibility EMC characteristics may result Never use portable or mobile radio frequency RF devices in the vicinity of this device These devices may adversely affect medical electrical equipment and malfunction may result After use CAUTION This device uses a heat sensitive printer paper To keep the printed data for along period of time make copies of the printouts The paper degrades over time and the printed data may become illegible When the device is not in use turn off the power switch and put the dust cover over the device If not dust may affect the measurement accuracy Donotyank the power cord to disconnect it from a wall outlet but hold the plug This can damage the metal core of the cord and may result in fire short circuit or electric shock Occasionally clean the prongs of the main plug with a dry cloth If dust settles between the prongs the dust will collect moisture and short circuit or fire may occ
5. D with a hard object such as a ball point pen Keep magnetic objects away from the LCD The device may be damaged Do not operate the LCD with wet hands Water seeping into the device may result in failure of the device There may be a few dead or constantly lit pixels in your LCD This does not represent failure of the LCD This is due to the structure of the LCD CAUTION This device has been tested and found to comply with the limits for medical devices to the IEC 60601 1 2 2001 am1 2004 and Medical Device Directive 93 42 EEC These limits are designed to provide reasonable protection against harmful interference in a standard medical installation This device generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to other devices in the vicinity However there is no guarantee that interference will not occur in a particular installation If this device does cause harmful interference to other devices which can be determined by turning the device off and on the user is encouraged to try to correct the interference by one or more of the following measures If this device does cause harmful interference to other devices which canbe determined by turning the device off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving device
6. User s Manual Auto Ref Keratometer GRK 6000 pen Tr GILRAS ORK 6000 S N W N i Usage precautions Before use CAUTION Do not use the device for other than the intended purpose We are not responsible for accidents or malfunctions caused by careless use Be sure to read the manual prior to operation of the device to understand the safety precautions and operating procedures thoroughly Using the device for purposes other than specified in this manual may cause unexpected malfunctions and or adverse events Never disassemble nor touch the inside of the device This may result in electric shock or malfunction Install the device in an environment that meets the following conditions The following conditions must be maintained during use Use conditions Temperature 10 to 35 C 50 to 95 F Humidity 30 to 90 Non condensing Pressure 800 to 1060 hPa Aplace with low dust Aplace with little external light Alevel and stable surface free from vibration and shock If the device is not installed and used under the above conditions the reliability of measured results is impaired and malfunction may result In addition there is a possibility of injury if the device receives shock and falls down Avoid storing the device where it is exposed to rain or water or poisonous gas or liquid is present Corrosion or malfunction of the device may occur Avoid installing the device where it is exposed to direct
7. air conditioning flow Changes in temperature may result in condensation inside the device or adversely affect measurements Be sure to use a HOSPITAL GRADE wall outlet which meets the power specification requirements If the line voltage is too high or too low the device may not perform properly Malfunction or fire may occur Connect the power plug to a ground outlet Or connect a grounding wire toa ground terminal Electric shock or fire may occur in the event of device malfunction or power leakage Never use a power strip or extension cable to supply the device with power The electrical safety may be lowered CAUTION Do not use a power cord other than the one provided Also do not connect the provided power cord to any other device Failure or fire may result Do not place heavy objects on the power cord The damaged power cord may cause fire or electric shock Before connecting the cable turn off the power switch and disconnect the power cord from the outlet Malfunction of the device may result When the device is carried two persons should hold it at the front and the back both right and left sides Avoid lifting by the forehead rest or main body instead hold it by the bottom of the base If only one person carries the device or areas other than the base are used for lifting and the device falls there is a possibility of injury or malfunction To transport the device use the special packing materials to p
8. ce is best aligned and in focus Amotorized up and down chinrest allows the operator to easily adjust the height of the chinrest Printer has a paper auto cut feature 1 2 Intended Use The Auto Refractometer is a diagnostic device that is indicated for use in the automated measurement of refractive errors of the eye The Auto Ref Keratometer is a medical appliance which performs measurement of the refractive errors of the eye and corneal radius of curvature 1 3 Principles Fine measurement beams are projected on the fundus of the patient s eye by a projecting optical system and then computation is performed by capturing the reflected beams as a ring image to measure the refractive errors SPH CYL and AXIS of the patient s eye 1 4 Configuration Front view 1 Function buttons 2 LCD 3 Power Light 4 Measure button 5 Joystick __ 6 Locking lever 7 Power switch 8 Printer cover 9 Cover open button 1 Function buttons Set the device and switch the screen Functions assigned to the function buttons are displayed by icons on the screen Two buttons in the lower left corner of the screen have unique functions when the measurement screen is displayed Clear button 65 Erases measured data When the clear button is held for about a second all the measured data is erased Print button Pressing this button can print out the measured data 2 LCD 5 7 inch LCD P
9. cing Printer Paper When the paper is running short please stop using the printer and replace printer paper withnewone Note Donotrun the printer when printer paper is not loaded It may ruin the printer head Do not pull the paper in the printer forcefully This may cause malfunction of the printer 1 Press the cover open button ESES to open the printer cover a 2 insert new printer paper T 7 Load printer paper as shown in the picture on the right Set printer paper so that its end is ad i exposed from the cover 3 Push the printer cover toward Ne _ the main body e 2 7 Parameter Settings 2 8 Main Parameters Settings Title Option vD Omm 12mm 13 75mm 15mm __ 0 12D 0 25D Printer OFF ON eL elses PD __OFF ON REF Print STD ALL AVG OFF M Speed HIGH MID LOW M Mode __REF KER R amp K SIZE K Index 1 3375 1 336 1 332 KER Print STD ALL AVG OFF EYE Print OFF ON KER INC mm D AVG R amp K Disp Left Mid M Auto OFF Auto Print amp Clear_ Clear Reserve Astigmatism AUTO lift OFF Auto Brightness ERAAN Note Options in bold font style are factory defaults Choose the parameter you need according to the arrow direction then press 4 or jam the parameters can be saved Other keys don t work 2 9 Setting the date and time Press to enter the interface of time setting setting the date and time OTOT O lten Time
10. ct the patient to keep both eyes wide open during measurement Closing one eye may cause an unstable fixation and the other eye may not open wide 7 Print the measured results Printing operation varies according to the parameter setting 2 2 1 Sleep mode The device goes into sleep mode automatically to save power if no operation is performed for a certain period of time The time that the device goes into sleep mode can be selected from 5 minutes 15 minutes or NO no sleep mode factory setting 5 minutes Sleep mode places the device into the following conditions The LCD goes off The working status LED blinks LCD has been in screen protection always The working status LED blinks The device recovers to normal mode from sleep mode by the following methods Press any button Manipulate the joystick to move the base R or L 2 2 2 Finishing the measurement 1 To finish the measurement turn off the power switch It is allowed to turn off the power with any screen displayed 2 Check the measuring window and clean the lens if necessary 3 Clean the forehead rest and chinrest and put the supplied dust cover on the device Always keep them clean for the next use 11 2 3 AR refractive error Measurements 1 Instruct the patient to Look through the measuring window As you will see the picture watch the center of it without straining 2 Manipulate the joystick to display the patient s eye on the screen By
11. e printer paper A OPERATING PROCEDURES 2 1 Operation Flow Power ON 2 2 Preparation for Measurement Turn on the power switch and set measurement conditions if necessary Prepare the patient Measurement 2 3 AR refractive error Measurements 2 4 KM corneal curvature radius Measurement KER Series 2 5 SIZE Measurement KER Series 2 6 Printing 2 2 3 Finishing the measurement For lens prescription for correction of visual acuity of glasses or such subjectively test the patient s visual acuity with reference to AR measured data 2 2 Preparation for Measurement 1 Turn on the power switch power switch The initial screen is displayed and the device is initialized AUTO AUTO Refractometer Ref Keratometer ope gh 201 2012 ver 3 74 Aino ReltiXeratome ter At Reracioma or Copytlgn 2011 2012 Ver 121 Initial screen REF Initial screen REF KER Wait for a while until the screen is switched to the measurement screen When the power to the device is turned on the main body makes small right left movements in order to determine the initial setting position for auto tracking This does not mean that the device has been broken 2 The measurement screen is displayed Measurement screen 3 Perform checks before use Perform the following checks before use No error message is displayed The main body moves smoothly using the joystick The chinrest moves up and down by pressin
12. en the auto measure function is turned on When the auto measure function is turned off press the start button to start measurement Measurement completes When the specified number of AR measurements is performed and the data is stable no a 12 variations the measurement automatically completes 6 Measure the other eye in the same manner When the eye to be measured is switched the measuring unit returns to the origin in the forward and backward and side to side directions 7 Let the patient know that the measurement is completed and instruct him or her to rest comfortably 8 Print the measured results 2 4 KM corneal curvature radius Measurement KER Series Preferences mm D AVG Mm the horizontal and vertical corneal radius D the horizontal and vertical corneal diopter AVG the average of corneal radius 1 For the Keratometer measurement mode1 please refer to the same procedures of 2 3 2 For the Ref amp Keratomer measurement mode please refer to the same procedures of 2 3 2 5 SIZE Measurement KER Series Press oO button to select Size main interface Press o button to enter corneal radius measurement interface please to the lower right diagram LEES ETE o on m 2 o Jj WF en m a re 346m 2 0 00 SIZE main Corneal radius measurement interface measurement interface 13 2 6 Printing 2 6 1 Printing measured data Measured data is printed out by pressing the p
13. g the chinrest up down button Printer supply is adequate The measurement accuracy satisfies the specifications 4 Establish measurement conditions The following conditions should be specified No Focus Focus 1 Measure mode Press the auto tracking button to selectauto tracking and select the auto measure on the menu Auto Auto Screen tracking measure display ON ma Up and Down OFF ore ON OFF OFF Auto tracking in the up and down directions is turned on Manually Manually align the device and bring the eye into focus and focused Description Auto tracking in the up and down directions is turned on Manually align the device in the left and right Measurement starts automatically when the eye is best aligned and focused align the device in the left and right and bring the eye into focus Press the measure button to start measurement Measurement starts automatically when the eye is best aligned Manually align the device and bring the eye into focus Press the measure button to start measurement 2 Measurement conditions set by parameters Various device conditions can be set by parameters 3 CYL mode The cylinder mode reading direction of cylinder data in which cylinder data cylindrical power is represented during measurement is selected by pressing the CYL mode button Screen display CYL mode CYL reading CYL reading CYL Mix reading
14. he surface of the lens 4 Circle display button After pressing measurement key a window will popup on the left upper LCD Eyegroud parameter image cycle measured by instrument displays which is used to judge the validity of measurement Pressing the key again it will close the window 5 Chinrest limit When the chinrest is at the upper or lower mechanical limit the upper limit indicator amp or lower limit indicator is displayed on the screen 6 Auto tracking button Selects the auto tracking function 7 History button Show the all measurements 8 Measured values Displays the latest measured results 9 PD 10 Print button Print the measured results 11 CYL mode button Switches cylinder mode CYL Indicates cylindrical power by reading CYL Indicates cylindrical power by reading CYL Cylinder data is indicated by reading when the refractive error is positive for any axis angle Indicates the cylindrical power by reading in other cases Cylinder mode can be switched even after measurement Data is printed out with the mode status at the time of printing 12 Measure mode button KER Series Select the mode of REF KER R amp K SIZE 43 Measuring window limit When the measuring window at the upper or lower mechanical limit the upper limit indicator or lower limit indicator A is displayed on the screen 14 Menu button i Set parameters date and time and enter comments 15 Focusing indica
15. ic environment Before use perform visual and operation checks If abnormal conditions are encountered stop using the device If the device is used under abnormal conditions intended results may not occur Also unexpected malfunctions or health hazards may occur due to improper measurement Before treating each patient clean the patient s contact area chin rest and forehead rest with clean absorbent cotton or gauze dampened with rubbing alcohol If chinrest paper is used remove one piece for each patient For severe stains wipe the area not with a dry cloth but with gauze dampened with alcohol Keep the measuring window free of fingerprints and dust The measurement accuracy may decrease substantially In the event of smoke or strange odors immediately turn off the device and disconnect the power plug from the outlet After you are sure that the smoke has stopped then contact us or your authorized distributor Usage of the device under such abnormal conditions may cause fire or electric shock In case of fire use a dry chemical ABC extinguisher to extinguish the fire Immediately replace the power cord if the internal wires are exposed the device turns on or off when the power cord is moved or the cord and or plug are too hot to be held with hands This may result in electric shock or fire In the event of malfunction disconnect the power cord from the wall outlet Never touch the inside of the device Never press on the LC
16. iguration 2 1 5 Measurement Screen Layout 5 1 6 Checking Contents T 14 7 Before First Use j 2 OPERATING PROCEDURES 8 2 1 Operation Flow 8 2 2 Preparation for Measurement 8 2 2 1 Sleep mode 11 2 2 2 Finish measurement 11 2 3 AR refractive error Measurements 12 2 4 KM corneal curvature radius Measurement KER Series 13 2 5 SIZE Measurement KER Series 13 2 6 Printing id 2 6 1 Printing measured data 2 6 2 Printing parameter settings 14 2 6 3 Replacing Printer Paper 15 2 7 Parameter tables 16 2 8 Main Parameter tables 17 2 9 Setting the date and time 17 2 10 Setting the company 18 3 SPECIFICATIONS AND ACCESSORIES 18 3 1 Specifications 18 3 2 Standard Configuration 49 E BEFORE USE 1 1 Outline of the Device The device which objectively measures refractive errors of sphere cylinder and axis Refraction is mainly performed as a reference for lens prescription to correct the visual acuity using glasses or contact lenses This device is a single unit with the main body mounted on a base The base is provided with a chinrest on the patient side and an LCD panel operating buttons joystick and printer to facilitate alignment and other operations The device offers the following features in addition to the above features The device is provided with an auto tracking mechanism that achieves alignment in the up and down direction An auto shot function is provided measurements to be taken automatically when the devi
17. l s 20 00 20 000 0 12 0 250 rE re 0 50D Cylindrical C 10 00 10 00D 0 12 0 25D 0 25D Axis AX 0 180 1 3 KM corneal curvature radius Measurement KER Series Ker index K index Radius of Curvature Corneal Power Corneal Diameter PD measurement Measurement range 1 3375 1 336 1 332 5 0 t010 00mm 0 01mm increments 33 00 to 67 5D 0 12 0 25D increments 2 00 to 14 00mm 0 01mm increments 40 to 85 mm 1 00mm increments Movable range of horizontal direction by joystick Forward and backward 36mm Right and left 85mm Working range of auto tracking Up and down Other functions Auto shot Display Printer Dimensions and weight Dimensions Weight Power source Power consumption 16mm Measurement starts automatically when the device is best aligned and focused 5 7 inch color LCD Thermal line printer with auto cutter Width 58 mm 480 L 270 W 445 H mm 17kg AC100 AC240V 10 50 60Hz 100VA Environmental conditions during use Temperature Humidity 10 to 35 C 50 to 95 F 30 to 90 Pressure Atmospheric pressure 800 to 1060 hPa 3 2 Standard accessories Main body Printer paper Power cord Dusts cover Operator s manual Note Text in this manual is subject to changes without notice 1 unit 2rolls 1 unit 1 unit 1 volume 19
18. moving the joystick laterally the main body moves right left forward and backward By turning the upper part of the joystick the main body moves up and down Align the eye position to the measuring point with right left up and down movements Adjust the focus with forward and backward movements 3 Perform alignment and focusing The methods of alignment and focusing vary according to the settings of the auto tracking and auto shot Up and down auto tracking 1 Perform rough alignment and focusing by manipulating the joystick to place in the working range of auto tracking 2 When the device is placed within the working range of auto tracking it automatically starts alignment in the up and down direction 3 Manipulate the joystick to move the mire ring reflected on the patient s eye within the target Auto tracking OFF 1 Manipulate the joystick to perform rough alignment and focusing 2 As the focusing indicator is displayed manipulate the joystick until the optimum focusing indicator is displayed During the focusing maintain alignment between the device and the patient s eye When main body is not within the working range of auto tracking As the limit indicator is displayed manipulate the joystick or chinrest up down button in the direction of the arrows A Move the chinrest up v Move the chinrest down 4 Measurement starts Measurements are taken automatically when the device is best aligned and focused on the eye wh
19. rint button after measurement Sample printout Company Add Name vD Right Sphere Cylinder Left Axis Pupil distance Manufacturer Model 11 08 08 Dateand time DATE 2012 05 3 XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX NAME MF VD 1i2mm A 70 69 Results of Right eye last 3 results is printed 70 70 Average L s c A 4 00 90 92 Results of Left eye 3 75 0 50 91 lle last 3 results is printed 400 0 25 91 Average PD 63 mm 7 XXXXXXXXXXXXXXK XXXxxx VD vertex distance from lens to cornea PD Distance between two pupils 14 Data ie Average EYE Print DATE 2012 05 8 11 08 08 XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX NAME M F REF VD 2mm CYL lt R gt SPH CYL AX 3 25 0 25 7 3 00 0 25 69 3 25 0 25 70 t AVG 3 25 0 25 70 lt L gt SPH CYL AX 4 00 0 25 90 4 00 0 25 92 AVG 4 00 0 25 91 2 6 2 Printing parameter settings The settings of the printing parameter s options are as follow Continuous to the left diagram IKER Index 1 3375 R2 lt R gt 1B 7 74 i 7 58mm 2 478mm AVG lt gt i 7 53mm 2 483mm AVG 6 18mm PD 63 mm XXXXXXXXXXXXXXX XXXXXX Data Average gt Data Average Printer OFF ON REF print STD ALL AVG OFF KER print STD ALL AVG OFF EYE print OFF ON Print amp Clear Clear Reserve 15 2 6 3 Repla
20. rotect the device from impact of dropping Excessive vibration or impact to the device may cause malfunction During installation and operation of the device observe the following instructions about EMC electromagnetic compatibility Do not use the device simultaneously with other electronic equipment to avoid electromagnetic interference with the operation of the device Do not use the device near on or under other electronic equipment to avoid electromagnetic interference with the operation of the device Do not use the device in the same room with other equipment such as life support equipment other equipment that has major affects on the life of the patient and results of treatment or other measurement or treatment equipment that involves small electric current Do not use the device simultaneously with portable and mobile radio frequency communication systems because it may have an adverse effect on operation of the device Do not use cables and accessories that are not specified for the device because that may increase the emission of electromagnetic waves from the device or the system and decrease the immunity of the device to electromagnetic disturbance The Electromagnetic Compatibility Directive sets the essential requirements for electrical and electronic equipment that may disturb or be disturbed by During use CAUTION other equipment Follow the guidance in the tables for use of the device in an electromagnet
21. tor Indicates the distance between the main body and the patient s eye Operate the joystick until the optimum condition is displayed 16 CYL mode Represents the selected cylinder mode 17 Measure mode Represents the selected cylinder mode 18 VD Represents the selected VD value 19 Auto measure icon Represents the setting of the auto measure function 20 Auto tracking icon Represents the setting of the auto tracking function alignment in the up down directions 1 6 Checking Contents Unpack the contents from the shipping carton and check them The following are included in the standard configuration Main body Printer paper 2 rolls Power cord Dust cover Operator s manual this book Model eye 1 7 Before First Use Place the device on a stable table and connect the power cord 1 Place the main body to a stable table 2 Lock the main body to the base unit with the locking lever and lay the device down gently Connect the power cord to the power inlet Stand the device upright Confirm that the power switch is turned OFF and plug the power cord into a wall outlet Be sure to use an outlet equipped with a ground terminal Electric shock or fire may anew occur in the event of device malfunction or power leakage 6 Turn ON the power switch The initial screen is displayed on the LCD and the device starts initializing Confirm that the measurement screen is displayed 8 Loadth
22. ulling the bottom of the display panel provides an adjustable viewing angle For measurement in a standing posture set the panel at a suitable angle The panel is reset to its original position by magnet bad Power Light The power light is on indicating that the device powers on properly 4 Measure button When the measure button is pressed measurement is taken regardless of the alignment or focusing condition of the device 5 Joystick Used for alignment and focusing Alignment in the right and left directions can be performed by moving the joystick to the right and left Rotating the joystick is for alignment in the up and down directions For focusing move the joystick forward and backward Locking lever Secures the main body to the base To lock the main body press the locking lever down 7 Power switch Turns on the power to the device 8 Printer cover kad Protects a printer equipped with an auto cutter Open the printer cover to replace printer paper by pressing the cover open button 9 Cover open button Opens the printer cover Rear view 10 Forehead rest 13 Eye level marker 11 Measuring window 12 Chinrest 14 Chinrest up down button 15 PD window 10 Forehead rest During measurement the patient s forehead should be gently rest against the forehead rest Clean the chinrest for each patient 11 Measuring window Check the window cleanliness before measurement 12 Chinrest
23. ur If the device will not be used for a long time disconnect the power cord from the wall outlet Fire may occur Maintain the surrounding temperature and humidity in the following ranges during transport and storage of the device Environmental conditions Temperature 10 to 55 C 14 to 131 F Humidity 10 to 95 non condensing Atmospheric pressure 700 to 1060 hPa Aplace with low dust Aplace not exposed to direct sunlight When transporting pack the main body in the original packing material with the fixing lever unlocked Excessive vibration or impact may cause device malfunction Maintenance and check CAUTION Only service technicians properly trained by us can repair the device We are not responsible for any accidents resulted from improper servicing When performing maintenance work secure sufficient maintenance space Maintenance work in an insufficient space may result in injury When the device is sent back for repair or maintenance wipe the surfaces especially the area where patients contact of the device with aclean cloth dampened with ethyl alcohol for disinfection Contact us or your authorized distributor to check whether the device needs measurement accuracy calibration if the AR measured results are substantially different from subjectively measured results Table of Contents 1 BEFORE USE 1 1 Outline of the Device 1 1 2 Intended Use 1 1 3 Principles 1 1 4 Conf
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