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Operation Manual

Summary of Contents for LRK-7000

Page 1: ...LRK 7000 Autorefractor Keratometer Operation Manual LRK 7000 ...

Page 2: ...are accurate in overall since they were reviewed carefully However US Ophthalmic LLC does not assume any kind of responsibility for the latent mistake or omission that results from the use of information included in this user manual US Ophthalmic LLC has the right to make any kind of modification to this product or product specs anytime without prior notice and modification may not be renewed on t...

Page 3: ... 1 100 nm when the instrument is operating at maximum light intensity and maximum aperture The spectral output shall be shown for the beam after it exits the instrument LRK 7000 Spectrum output of all light source during measurement maximum light intensity 2 CAUTION The light emitted from this instrument is potentially hazardous The longer the duration of exposure the greater the risk of ocular da...

Page 4: ...part 20 5 1 Key part 20 5 2 Main measurement screen button explanation 24 6 Equipment installation and preparation for measurement 26 7 Measurement Method 30 8 Measurement 37 8 1 Refractive power measurement mode REF mode 37 8 1 1 Manual measurement mode 37 8 1 2 Automatic measurement mode 41 8 1 3 Message List 42 8 2 Corneal curvature measurement mode KER mode 43 8 2 1 Manual measurement mode 43 ...

Page 5: ... 68 10 1 REF KER Accuracy check 68 10 2 Replacing 69 10 2 1 69 10 2 2 Chin rest paper 70 10 3 Cleaning Equipment 70 10 4 Cleaning 72 10 4 1 Cleaning the measuring window 72 10 4 2 Cleaning the mire ring 72 10 4 3 Cleaning the forehead rest and chin rest 73 10 5 Prior to contact with preferred distributor 73 10 6 When moving equipment installation place 74 11 Information needed for servicing 75 12 ...

Page 6: ...orneal curvature and it enables accurate prescription since it is possible to know the information of the cornea s center and periphery curvature individually 1 3 Grade classification and mentioned items 1 Classification of product EU Class I with a measuring function according to Annex IX Rule 12 of the Medical Device Directive 93 42 EEC KFDA Class II 2 Resistance against electric shock Class I e...

Page 7: ...reason the following safety warning chart is included at the adequate place on this manual in order to highlight information that requires special precaution or safety related information in particular All the users or managers need to pay special attention in addition to mastering WARNING or CAUTION in the manual WARNING Warning cautions against the existence of calamity that can cause severe per...

Page 8: ... Service Manual Ce symbole identifie une note de sécurité Assurez vous de comprendre la fonction de ce contrôle avant de l utiliser La fonction de contrôle est décrite dans le manuel d utilisation ou d entretien approprié It indicates the year of manufacture and the manufacturer Il indique l année de fabrication et le fabricant Manufacturer Fabricant Authorised Representative in the European Commu...

Page 9: ... about disposal of your old appliance please contact your city office waste disposal service or the shop where you purchased the product Mise au rebut de votre ancien appareil Lorsque ce symbole de poubelle barrée est joint à un produit cela signifie que le produit est couvert par la directive européenne 2002 96 CE Tous les produits électriques et électroniques doivent être éliminés séparément du ...

Page 10: ...r RoHS Conformité à la directive RoHS 2011 65 UE Atmospheric pressure limitation Limitation de pression atmosphérique Humidity limitation Limite d humidité Stack direction Direction de la pile Fragile handle with care Frágil manipuler avec soin Keep away from sunlight Tenir à l écart de la lumière du soleil Stack layer limitation Limiter la couche de pile ...

Page 11: ...ment related matters The following environment for 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 A place where the equipment can be exposed to direct ultraviolet Place with severe temperature change temperature for normal operation ranges from 10 C to 40 C while humidity ...

Page 12: ...ike dust and metal do not fall inside the machine Don t disassemble or open the product US Ophthalmic LLC does not take responsibility for the possible problems Be careful not to block the fan of the machine Don t plug the AC power cord into the outlet unless all parts of the machine are completely connected Otherwise it will cause severe damage on the machine To avoid risk of electric shock this ...

Page 13: ... of 800 1060 hpa As for the environment when transporting the device maintain temperature of 40 70 humidity level of 10 95 and atmospheric pressure of 500 1060 hpa As for the environment when storing the device maintain temperature of 10 55 humidity level of 30 75 and atmospheric pressure of 700 1060 hpa Take precaution so that the device won t be subjected to excessive shock or vibration ...

Page 14: ...l is mandatory for safety sake Thus read the instructions in the manual sufficiently and understand prior to turning on the power For many more information inquire the distributor where you purchased the device 1 Do not store or install this device at the following places a place that runs the risk of exploding or b place that has volatile chemical substance such as alcohol benzene or inflammable ...

Page 15: ...arranty period 8 This device is utilized with the accessories provided by US Ophthalmic LLC If consumer wants to use other manufacturers accessories safety of use must be proven and confirmed by US Ophthalmic LLC or by the accessories manufacturer 9 Only a person who completed adequate training or education program can install operate and maintain this device 10 Store user or service manual at a p...

Page 16: ...y be generated or used and energy may be released when the device is not installed or used according to the guideline However there is no guarantee that edge does not result when carrying out specific installation If this device leads to hazardous interception on other device when the equipment is turned on off user needs to solve the interception issue by using one of the following measures Chang...

Page 17: ...inated with blade attachment plug HAR Type NEMA 6 15P This equipment must be installed and operated in accordance with provided instructions and the antenna s used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co located or operating in conjunction with any other antenna or transmitter End users and installers must be pro...

Page 18: ...lied to the internal fixation Target enables increasingly accurate measurement by ensuring natural and comforting feel for the patient s eyes 5 Cornea measurement s marking form and cornea equivalence curve rate can be selected 6 Distance between pupils PD measurement is enabled 7 It is possible to observe the state of cataract patient s eyes or scratch on the contact lens surface through light ob...

Page 19: ...ar 5 Main the object lens from the customer side that is subjected to the test clean at all times Error may result or precision measurement may be affected if tainted with dust or alien substance 6 Take out the power plug to separate the power when there is smoke smell or noise during use Then follow the instructions of the place of purchase 7 Do not use alcohol thinner benzene and organic solvent...

Page 20: ...20 5 Name and function of each part 5 1 Key part 1 6 4 5 7 3 2 Front part ...

Page 21: ...cator lamp indicates whether the device power is turned on 4 Display monitor indicates measurement screen and movement state 5 Printer printer for printing out measurement results 6 Measurement button button pressed on to measure 7 Joystick Operation lever lever for moving object lens to the front and back left and right and up and down ...

Page 22: ...s for measuring the image that is formed in the eye retina 3 Chin rest location for placing the chin to prevent test subject from moving the face Chin rest paper Type B attachment part 4 Chin rest control knob the chin rest s height adjustment knob 5 Measuring head Optical head of mearing 6 Eye height mark of measuring window indicates the position of the measuring window ...

Page 23: ...onnector 3 RGB connector Connector for connecting with the outside monitor of the RGB method 4 Power switch switch for turning the power on or off 5 Clamping bolt Fixate system stage NOTE Noise may appear on the screen when connecting with outside monitor due to the length and type of the cable and monitor quality Use signal amplifier if the distance with the outside monitor is significant ...

Page 24: ... Front part s switch 1 MODE button Main measurement mode Button for modifying REF KER K R 2 MANUAL button Button for selecting whether to carry out automatic measurement Number is frequency MANUAL AUTO 3 AUTO 5 AUTO A 3 COLOR Button Button for viewing to color observation mode ...

Page 25: ...tton Button that deletes measurement result 8 PRINT Button Button that prints measurement result 9 SETUP button Button for converting to the user SETUP screen 10 MEASURE Button Button that measures DATA 11 CYLINDER Display Show current cylinder selected in 7 Cylinder button Displayed only in REF K R mode 12 VD button Button for converting VD to one of the following set up value Default value 12 0 ...

Page 26: ...ing it to the counter clock wise direction and convert the stage fixation lever that is at the joystick s backside into the UNLOCK direction Unlocking stage part s lock1 Stage fixation lever Clamping bolt 2 Unlocking stage part s lock 2 Body locks As shown in the figure the stage is forced to the right Turn the body lock clockwise until it stops Lock the body lock in the same way on the left ...

Page 27: ...er cable Place LRK 7000 on a table Make sure the POWER switch of the instrument is OFF Put in the power cable into the power connector at the main body s lower part Put in the power plug into the AC socket Access to the power cable 4 Fitting in the chin rest paper ...

Page 28: ...here pressing pin was fit in onto the slip Chin rest paper 5 Print paper attachment Refer to 10 2 Replacing part for print paper attachment sequence 6 Setting confirmation Check and select various functions related to measurement including VD value or printer conditions Print any message that you want to print along with the measurement data refer to 9 5 User Setup mode part ...

Page 29: ...uipment that is connected to set up this eye examination device s transmission speed BPS and protocol RS232 Refer to the 9 5 user SETUP mode for this eye examination device s communication transmission speed and protocol Ask the distributor where you purchased this device for details WARNING When the following type of situation results turn off the power switch immediately Then contact the US Opht...

Page 30: ...appears when system check is completed NOTE If the measurement screen that is shown below does not appear on the monitor screen turn off the power and turn on the power switch on again after 10 seconds If the measurement screen does not appear contact the US Ophthalmic LLC distributor Measurement screen ...

Page 31: ...rement K R KER REF continuous measurement Measurement mode 3 Height adjustment of patient Have patient sit at the front part of the device Adjust device s electric table or chair s height so that the patient can sit comfortably Make sure place the patient s chin on the chin rest and check that his her forehead is touching to the forehead rests ...

Page 32: ...ne Eye height mark Eye height mark of Measuring window Chin rest control knob Height adjustment of patient CAUTION Do not have patient place his or her hand or finger on top of the chin rest s lower part Hand or finger may get injured Cleanse forehead rest with solvent such as ethanol every time patient changes to prevent infection Replace chin rest paper every time patient changes to maintain cle...

Page 33: ...ng the operation lever to the front slowly so that patient s right eyes appear at the monitor screen s center At this time ensure that the shining Mire Ring and outer arrangement ring becomes concentric circle Ask patient to watch the fixating target at the inside Adjust the focus so that the Mire Ring s outline becomes clear When the focus is adequate Circle symbol appears at the inner side arran...

Page 34: ...e left and right to adjust so that the outer arrangement ring gets aligned to the Mire Ring s location Focus adjustment Lean the operation lever front and back to adjust the focus so that the Mire Ring becomes clear Operating the joystick for up down adjustment Operating the joystick for left right focus adjustment ...

Page 35: ... easy Measurement margin of error may result when the Mire Ring and outer arrangement ring fails to maintain same axle during continuous measurement NOTE Do not allow the eyelash and eyelid to cover the smallest measurable pupil diameter mark to ensure stable measurement If the device is too near to the patient in comparison with the optimal alignment position the alignment indicators are displaye...

Page 36: ...36 Too far Location and Focus are correct ...

Page 37: ...or section on the screen turns into REF mode Right side measurement Left side measurement Measurement mode indication REF mode screen 8 1 1 Manual measurement mode NOTE The manual measurement mode has a minimum limit set to allow measurement even in unusual situations Therefore data errors may occur depending on the user s skill level In general automatic measurement mode is recommended ...

Page 38: ...UP mode part Eye height adjustment Measurement location and focusing Outer line arrangement ring Pupil Minimum pupilloscope Φ2 0mm Manual Automatic Iris REF manual measurement mode screen Measurement Press on the measurement button Measurement is carried out continuously when measurement button is pressed on continually Measurement result is indicated on the monitor when measurement is completed P...

Page 39: ...urement of the opposite eyes Measures the left eyes while pushing the stage to the right side while holding the operation lever PD value distance between pupils Pupillary Distance gets indicated on the monitor when the left and right eyes are measured Distance between pupils Screen indicating distance between pupils Printing Print measurement result by pressing on the print button Contents selecte...

Page 40: ...measured until now is removed when printing is carried out Printed text changes in a light manner since print is a thermal record Copy when you want to keep measurement data for a long time Example of a printed page ...

Page 41: ...pressed on when the state reaches a state in which arrangement in the device and measurement is realized effectively Eye height adjustment measurement location and focusing process is carried out just like the manual measurement mode Measurement Measurement is carried out automatically when the location arrangement and focusing are completed Value for new measurement result appears on the monitor ...

Page 42: ...ment result gets printed automatically when the measurement of the two eyes gets completed when the A PRT category was selected as ON while in the user Setup mode Print by pressing on the print button when only one eye was measured or when the A PRT category was selected as OFF Gets printed along with the message input while in the user Setup mode with the measurement data 8 1 3 Message List MOVE ...

Page 43: ...N There is too big difference from the previous measurement value 8 2 Corneal curvature measurement mode KER mode This is the mode for measuring the radius of cornea s curvature on its own KER mode selection Set so that the measurement mode indicator section on the screen becomes KER mode 8 2 1 Manual measurement mode The manual measurement mode has a minimum limit set to allow measurement even in...

Page 44: ...ry out the process using the same process as that of the repetitive measurement measurement of the opposite eyes in the 8 1 1 refractive power measurement mode Print the measurement result using the process that is like the printing process while at the 8 1 2 refractive power measurement mode ...

Page 45: ...45 Example of a printed page ...

Page 46: ...surement process while in the 8 1 2 refractive power measurement mode Measurement result is printed using a method that is same as that of the printing process while in the 8 1 2 refractive power measurement mode 8 2 2 Message List MOVE RIGHT Move stage to right MOVE LEFT Move stage to left CHINREST DOWN Move chinrest down CHINREST UP Move chinrest up DATA TRANSMITTING Measurement data of LRK is b...

Page 47: ... situations Therefore data errors may occur depending on the user s skill level In general automatic measurement mode is recommended 1 Eye height adjustment measurement location and focusing process is carried out just like the 8 1 1 refractive power measurement mode 2 Measurement Press on the measurement button Measurement is carried out continuously when measurement button is pressed on continua...

Page 48: ...rement of the opposite eyes was executed in the 8 1 1 refractive power measurement mode Prints measurement result through the process that is the same as that of the printing in the 8 1 1 refractive power measurement mode Example of a printed page Screen indication format selection ...

Page 49: ... composed of optimum measurement conditions and can be measured reliably If the patient s eyes move and it is difficult to measure press the measurement button on the joystick The mode gets converted to automatic measurement mode when MANUAL button is pressed on while in the manual measurement mode While in the automatic measurement mode measurement is carried out automatically even when the measu...

Page 50: ...is is the mode that measures pupil s diameter 1 Press on the button in the main measurement mode Then SIZE mode gets selected when the SIZE button is pressed on 2 Adjust location and focus the image of the eye to be measured clearly Size mode indicator screen 1 ...

Page 51: ...atient to watch fixating target at the inside Move the operation lever to adjust the location so that the pupil is in between two vertical bars Focus is adjusted so that the cornea s corners are clearly visible NOTE It is not possible to measure the pupil diameter accurately when focus is adjusted to the iris 4 Measurement When the measurement button is pressed on current state gets filmed and the...

Page 52: ...ement values is indicated in the Avg Size below Stopped screen is undone when you press on the measurement button 5 Measurement repetition It is possible to measure up to two measurement values when the measurement is repeated Repeat the operation of 2 5 when measuring again 6 Measurement of the eye on the opposite side Measure the eye on the opposite side using the same method after moving the st...

Page 53: ...rt even when the measured value indicated on the screen s left and right sides is touched after measuring refractive power NOTE Page changes when the REF button or KER button is pressed on in case of the K R mode Measurement result that is saved in the memory when pressing on the PRINT button is printed out via built in printer and the result is deleted completely for the new measurement Data meas...

Page 54: ...urement result Button for deleting saved DATA and that returns to the measurement mode Button for printing saved DATA 1 Refractometry measurement result Indicates the latest 10 measurement results refractive power 2 Keratometry measurement result Indicates the latest 10 measurement results cornea curvature value ...

Page 55: ...MODE button in the main measurement screen 9 3 1 List of setup items Initial Setup items are categorized in to 8 large indexes REF KER AUTO START COMMUNICATION PRINT DISPLAY PATIENT NUMBER ETC 9 3 2 Initial setting Items Descriptions Options Initial value REF VD 0 0 12 0 13 75 15 0 12 CYLINDER STEP 0 01 0 125 0 25 0 25 FOGGING 1TIME Always 1Time DIOPTER SHIFT Input value 0 00 ...

Page 56: ...d HLM PRINT Off On Off BPS COM2 9600 57600 115200 115200 RS232 PROTOCOL COM2 Off On Off MODE COM2 Mate HLM HLM PRINT AUTO PRINT Off On Off REF PRINT Off Std Avg Std KER PRINT Off Std Avg Std EYE EMAGE Off On Off MESSAGE Input text US Ophthalmi c LLC R CYL Off On Off DATE TIME DISPLAY YMD MDY DMY YMD DATE YY MM DD Input date China date TIME HH MM SS Input time China time DISPLAY EXT OUTPUT Off On O...

Page 57: ...NFIRM DIALOG Off On Off 9 3 3 Detailed description of setting Method for changing page Moves to the previous page Moves to the next page Method for changing contents It is possible to select the desired tab to indicate the set value on the screen and to change the setting by touching on the category to be modified NOTE Some need to be modified by using a different method This setting modification ...

Page 58: ...58 Method for entering into the measurement mode Press on the button to save the contents automatically and the mode returns to the main measurement mode Setup mode information ...

Page 59: ...tion FOGGING 1Time Always Select whether to carry out the mist execution frequency once or every time when carrying out continuous measurement DIOPTER SHIFT 0 00 Set up the applicable value to correct the diopter measurement value Scope 5 00 5 00 2 KER curve measurement mm D mm D AVG cornea measurement 의 marking form mm R1 major axis rad ius R2 minor axis rad ius AX maj or axis s angle D K1 minimu...

Page 60: ...1 336 1 3375 Selection of cornea equivalence s refractive power 3 AUTO START automatic function AUTO MEASUREMENT Off On 3 On 5 On A Select whether to use the automatic measurement function when the arrangement and focus are correct ON 3 Measure three times in a row ON 5 Measure five times in a row ON A Continue to measure OFF automatic measurement function is not used 4 COMMUNICATION setting up th...

Page 61: ... of the lensmeter BPS COM2 9600 57600 115200 Select data transmission speed with other device 9600 57600 115200bps RS232 PROTOCOL COM2 Off On Set on if your system use second communication port To use second port RS232 Y CABLE must be connected to your device MODE COM2 Mate LM Select the target of second communication port NOTE For the users who want LRK 7000 is connected with two devices at the s...

Page 62: ... COM2 Case 2 Digital refractor LRK Mate 1 Connect a digital refractor to COM1 of the RS232 Y CABLE 2 Connect LRK Mate to COM2 of RS232 Y CABLE 3 Set BPS COM1 RS232 PROTOCOL COM1 and MODE COM1 for the target digital refractor 4 Set LM PRINT off 5 Set RS232 PROTOCOL COM2 on 6 Set BPS COM2 for the target LRK Mate 7 Select Mate for MODE COM2 Case 3 Mate LM 1 Connect LRK Mate to COM1 of the RS232 Y CAB...

Page 63: ...R PRINT Off Std Avg Built in printer output form for Keratometry measurement result Off Did not get output Std Outputs only the most recent 10 measurement results and average values Avg Outputs only the average value EYE IMAGE Off On Selects output of the eyeball and curve figures following REF measurement result Off Did not get output On Selects output of the eyeball and curve figures following R...

Page 64: ...t whether to use external display output EXT OUTPUT RATIO 4 3 16 9 5 4 16 10 Select resolution of external display output LCD BRIGHTNESS 10 100 Adjust brightness of LCD display LCD COLOR TEMPERATURE COOL WARM Adjust color temperature of LCD display EXT LED RETRO ILL Off On Select whether to use external LED 7 PATIENT NUMBER serial number COUNT Off On select whether to use the serial number or not ...

Page 65: ...all average and large INITIAL MODE REF KER K R selection of initial measurement mode SLEEP MODE Off 3min 5min 10min Sets up the time required for entering into the power saving mode AIMMING DOT Off On The center position of the patient s eye is indicated by a yellow dot DELETE CONFIRM DIALOG Off On The confirmation dialog box is displayed by pressing the delete button of the measurement screen ...

Page 66: ...ext input Text input Converts capital letter small letter input mode Deletes all the input texts Back Space deletes only one letter in front of the cursor Converts the space in between the first and second lines Saves input text ...

Page 67: ...ut Range Minimum maximum scope that can be input Does not get saved when the scope is deviated from and the warning message Out of Range appears Deletes the last number Deletes all the numbers Saves number and exists number input mode ...

Page 68: ...ing the hole at the Model Eye s lower part with chin rest s hole Perform the measurement and compare with the display value at the bottom of the model eye STEP 0 01 Perform the accuracy check at regular intervals Daily checkup CAUTION If the measurement result is widely different from the value shown on the model eye call your dealer ...

Page 69: ...nter And adjust the length to a degree that can be discharged as the paper gets fit into the paper discharge of the cover 10 15cm 4 Close the printer cover and make sure the printer paper is in the center of the printer cover Printer paper CAUTION Be sure to use only the printer paper 9010A000001 A W 57mm D 50mm specified by US Ophthalmic LLC If printer paper other than those specified is used the...

Page 70: ...ent should be kept as clean basically Do not use the solvents such as strongly volatile substance thinner benzene etc Put some soapy water to the soft cloth and twist the water out of the cloth Then polish each part of the equipment As polishing the parts of lens or glass get rid of dusts on the surface of lens with wind blower and use a dry cloth Always keep it clean for a patient to use chinrest...

Page 71: ...oxide and Merthiolate Soaking in chnicals like 70 isopropyl alcohol 1 1000 Merthiolate 3 hydrogen peroxide and 1 10 diluted house hold bleach sodium hypochlorite Solution Manufacturer Cleaner Disinfectant Active ingredient Cleared Approved for use in Alkazyme Alkapharm Cleaner Proteolytic enzyme Quat Ammonia Europe Klenzyme Steis Calgon Corp Cleaner Enzymes USA Europe For high level disinfection i...

Page 72: ...hopstick or cotton swab and wipe the lens of the measuring window with a material moistened with alcohol CAUTION Use a thin stick that will not scratch glass lenses Wipe lightly from the center of the measuring window to the outside in a circular motion Measuring window Mire ring 10 4 2 Cleaning the mire ring When the mire ring gets fingerprints or dust on it the reliability of the measured values...

Page 73: ... sales distributor Contact a sales distributor after turning off the power when the device does not resume normal operation even after taking the following measures 1 When power switch is turned on Warning appears on the screen when there is a problem or when this device malfunctions Take the following measures in case of the following Message Root causes Measures FRAM INIT FAIL Abnormality at the...

Page 74: ...k may be locked Unlock the body lock on both sides of the main body Refer to 6 phase The clamping bolt may be locked Unlock the clamping bolt on the bottom of the device Refer to 6 phase Print does not start Check the printer paper If the paper has been used up load new printer paper The printer does operate however printed results cannot be obtained The printer paper may be loaded with the incorr...

Page 75: ... contact number Model number Serial number Supply of parts needed for repair Parts needed to repair for this device will be keep for 7 years Parts that the service personnel need to repair The following parts are consumables by nature and quality tends to decrease after using for a long time But the user must not replace it in person When the parts are consumed or deteriorated due to long time use...

Page 76: ...S Ophthalmic LLC or local distributor for service with the following information Name of the instrument Auto Ref Keratometer LRK 7000 Serial number of the instrument refer to the 9 digit number on its product label or name plate Descriptions of Problem In detail Date of Purchase Dealer s Name Dealer Address Dealer Phone No Model No Serial No US Ophthalmic recommends customers to fill up the follow...

Page 77: ...To discard outsource to a specialized waste disposal company US Ophthalmic LLC Tel 786 621 1842 9990 NW 14th ST STE 105 Doral FL 33172 Fax 786 621 0521 http www usophthalmic com e mail info usophthalmic com Lotus Global Co Ltd 1 Four Seasons Terrace Tel 0044 20 75868010 West Drayton Middlesex 0044 20 709961611 London UB7 9GG Fax 0044 20 7906187 United Kingdom ...

Page 78: ...01 0 12 0 25 D unit Astigmatism axis angle AX 0 180 1 unit Astigmatism indication MIX Pupil distance PD 10 85 mm Minimum pupil diameter that can be measured Ø2 0 mm The accuracy specifications are based on the results of eye model testing preformed in accordance with ISO10342 Cornea measurement Corneal curvature radius 5 0 13 0 mm 0 01 mm unit Cornea refractive power measurement unit 25 96D 67 50D...

Page 79: ... rest travel distance Up and down 60 mm 5 mm Data memory 10 session worth of measurement values for each of the eyes on the left and right Interface RS 232C in Out Ext VIDEO Analog RGB Hardware specs Built in printer Thermoelectric line printer power saving function Key power is blocked when the measurement is stopped up the set time Recovered when pressing on the button or when the screen is touc...

Page 80: ...Refractometry VD Distance between vertex of cornea PD Pupil distance SIZE Pupil diameter measurement Retro ILL The mode that can observe eye lens by using Retro illumination method X COLOR Color View X DISP It is possible to see the measurement results AT Automatic tracking for up down X PRINT Prints measurement result ...

Page 81: ...ISO 8429 2 Keratometry NO Criterion Requirement 1 Measuring range 6 5 to 9 4 2 Radii readings for Continuously indicating instruments Scale interval of 0 5 Digitally indicating instruments Increment 0 02 3 Measurement accuracy twice the standard deviation i e 2σ 0 025 3 Measurement of direction of principal meridians NO Criterion Requirement 1 Measuring range 0 to 180 2 Meridian direction reading ...

Page 82: ...00 R2 7 78 7 83 3 Chin rest paper 100 pages 1 4 Printer page roll 2 5 Dust cover 1 6 Fuse 250 V 3 15 A 2 WARNING Fuse must be replaced with the fuse of the same type and grade to prevent fire Fuse 250 V T3 15 AL 7 RS232 Y CABLE Optional 1 NOTE This cable is used to connect the Digital Refractor and LM 1 simultaneously as shown below ...

Page 83: ...83 LRK 7000 LM 1 8 Wind blower 1 ...

Page 84: ...stic purposes Harmonic emissions IEC 61000 3 2 N A Voltage fluctuations flicker emissions IEC 61000 3 3 N A Guidance and manufacturer s declaration electromagnetic immunity The Model LRK 7000 is intended for use in the electromagnetic environment specified below The customer or the user of the Model LRK 7000 should assure that it is used in such an environmen t Immunity test IEC 60601 test level C...

Page 85: ...for 250 300 cycle at 0 Mains power quality should be that of a typical commercial or hospital environment If the user of the Model LRK 7000 product name requires continue d operation during power mains interruptions it is recommended that the Model LRK 7000 be powered from an uninterruptible power supply or a battery Power frequency 50 60 Hz magnetic field IEC 61000 4 8 30 A m 50 60Hz 30 A m 50 60...

Page 86: ...ansmitter Recommended separation distance d 3 5 𝑉1 𝑃 d 3 5 𝐸1 𝑃 80MHz to 800MHZ d 3 5 𝐸1 𝑃 80MHz to 2 7GHz Where P is the maximum output power rating of the transmitter in watts W according to the transmitter manufacturer and d is the recommended separation distance in meters m Field strengths from fixed RF transmitters as determined by an electromagnetic site survey a should be less than the comp...

Page 87: ...bile radios amateur radio AM and FM radio broadcast and TV broadcast ca nnot be predicted theoretically with accuracy To assess the electromagnetic environment due to fixed RF transmitters an electromagnetic site survey should be considered If the measured fiel d strength in the location in which the Model LRK 7000 is used exceeds the applicable RF complia nce level above the Model LRK 7000 should...

Page 88: ...cy 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 Recommended separation distances between RF wireless communications equipment The device is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled The customer or the user of the...

Page 89: ...ating of the transmitter in watts W according to the transmitter manufacturer and d is the recommended separation distance in meters m Field strengths from fixed RF transmitter as determined by an electromagnetic site survey should be less than the compliance level in each frequency range Interference may occur in the vicinity of equipment marked with the following symbol 710 0 2 0 3 9 9 745 780 8...

Page 90: ... equipment such as cell phone transceiver or radio control products If you have to do so the device should be observed to verify normal operation The use of accessories and power cord other than those specified with the exception of cables sold by the manufacturer of the equipment or system as replacement parts for internal components may result in increased emissions or decreased immunity of the ...

Page 91: ...LRK 7000 Autorefractor Keratometer 9990 NW 14 Street Suite 105 Doral FL 33172 Telephone 888 334 4640 ...

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