Kowa RB-525-B04 manual

RB-525-B04 Operations Manual Auto Refkeratometer[...]

RB-525-B04 1 INTRODUCTION This manual co ntains inform ation on correct handli ng and op erational proced ures as well as safety consideration pert inent to KW -2000 Before carrying out measurement and/or adjustm ent, re ad the instruct ions thoroughly so that ef fective operation is ensure d. As this consti tutes an im portant reference and us er [...]

RB-525-B04 2 CAUTION  Always take great care when op erating KW-2000. Malfunction or damage to the i nstrument coul d occur .  Cut the power im mediately if m alfunction occ urs during operatio n. Damage to the equipm ent or personal injury will result. Consult y our dealer , if repair work needs to be carried out.  At no tim e attempt to [...]

RB-525-B04 3 Contents Introduction ............................................................................................................................. 1 Safety Consideration ............................................................................................................... 1 Contents ...........................................[...]

RB-525-B04 4 Accessories Model eye: 1 (with a contact lens holder) Power cord: 1 (2.5m) Printer paper rol e: 3 (width 57mm) T wo packed and one installed into the body Fuse: 2 (T2A 250V) Pack of chin rest line rs: 1 (1,000 sheet s) Chine rest liner pin: 2 Dustproof cover: 1 Operations manual: 1 Use accessories specifie d by us to avoid any malfu nc[...]

RB-525-B04 5 1. Parts Identification Head rest Eye mar k Chin re s t View w i ndow External interf ace co nnector External monitor ou tput terminal Power plug conn ector Fuse holder Power sw it c h Joys ti ck Measure ment st art sw it ch Rating p late Printer LCD monitor Bod y Base Anti-sliding lock IOL switch Measurement mode selection switch Menu[...]

RB-525-B04 6 2. Conveyance and Handling Procedure When transporting the instrume nt, make sur e that the body has been secur ely locked. Center the body on to the base so that their edge s are aligned. Push dow n the lock while turni ng right until both body and base are firmly fixed to each oth er . 3. Installation Environment 1) Do not exp ose th[...]

RB-525-B04 7 4. Safeguard Summary 1. KW-2000 is a precisi on optical instr ument. Always handle wi th care and a void dropping i t accidentally . 2. Ensure that the ins trument is properly grounded when connected to the power source. 3. Do not touch the optical parts with fingers an d be sure to avoid dust, as th eir measuring acc uracy could be ad[...]

RB-525-B04 8 5. Preparation 5.1 Setting (1) Set a roll of printer paper in the printer . Refer to ' 1 1.1 Reloadin g Printer Paper ' for the procedure. (2) Set and fix the chin rest liners wi th the chin rest liner pins on the c hin rest. Refer to the figure on the right.  Always use the chin rest liners following ab ove.  For sanit[...]

RB-525-B04 9 5.2 Applying P o we r (1) Confirm that the power is 'OFF' ( ). (2) Insert the power c ord into the instrument' s power plug connector . Then in sert the plug int o a general-purpose outlet. (3) T urn the power switch 'ON' ( ). I O POW ER T 2A 250V I O POW ER T 2A 250V Always make sure that the cable is grounded[...]

RB-525-B04 10 5.3 Standby When the power is turned on, the s creen as shown below appears on the LCD m onitor, which is re ady to take measurem ents. Increm ent o f me asurem ent values V er tex distan ce Cylindrical mark Eye sel ectio n indicatio n Refrac tion data displa y area Reticle m ark Minim um pupil diamet er meas urable Kerat om etr y dat[...]

RB-525-B04 11 5.4 Switch Fu n c ti o n Operating switc hes below a L CD monitor corres pond to the ic ons display ed on the b ottom of the scree n. For normal measurem ent, each icon functions as bel ow . Measurement start switch : starts the m easure ment. Menu switc h Measure ment m ode select ion switch Print sw itch IOL switc h Powe r indica to[...]

RB-525-B04 12 6. Measurement 6.1 Measurem e n t Flow (1) Rotate an anti-sliding lo ck clo ckwis e to release it. (2) Have the exam inee place his/her chi n on the chin rest and his/her forehead ag ainst th e head rest . Then, have him/her see a tar get. (3) Check from the side and adjust the chin rest so that t he examinee' s eye level is in l[...]

RB-525-B04 13 6.2 Alignmen t (1) Operate a joystick t o bring a ce nter of the subject eye onto a reticle mark. When the subject eye is focused on, a kerato ring appears. (2) Keeping the reticl e mark in the center of the subject eye, try to focus the subject eye, and t hen, an alignm ent mark ( ) will appear . Then, operate the joystick to bri ng [...]

RB-525-B04 14 6.3 Measurem e n t Results R1 7 . 8 5 R2 7 . 7 4 A9 0 S- 4 . 7 5 C- 0 . 2 5 A9 0 A9 0 PD= 6 7 NP D = 2 ( 63 0 ) 12 K er. Re f. 0. 25 ( 1 ) ( 1 ) R R ／ K MEN U Pupil l a ry Dist an ce K er at om et ry me as ur eme n t r esul t Ax is An g l e N ear p u pil l ar y dist an ce R ad iu s of Cu rv at ur e( mi n mu m ) R e f r ac t ive m e [...]

RB-525-B04 15 6.4 Print Out Normally y ou can print out th e m easurem ent result by pressing PR INT switch after the m easurement. (The icon of PRINT switch in the m onitor turns into bl ue during printi ng.) A maxim um of ten data is recor ded for each eye and the most reliab le among them is indicated as an optimum value. The optimum value is in[...]

RB-525-B04 16 6.5 Kerato-Pe r i pheral Measurement KW-2000 incorporat es a function to measure not on ly a cent er but also periph eries of a cornea. (1) Press a measurement m ode selection switch to switch over to P .K. mode. P .K. measurem ent screen will appear and a 'measurement gui ding mark' which i ndicates the measurement posi tio[...]

RB-525-B04 17 (3) Measure the corneal periphery . Have the examinee look at the fixati on tar get that is illuminating. A m easure ment position in the gui ding mark is indicated in blue. C arry out alignment and press the measurement switch. When the m easurement is completed, t he guiding m ark changes blue to light b lue and th e next m easureme[...]

RB-525-B04 18 6.6 IOL Meas u r ement KW-2000 has the fu nction to m easure the IOL (intraocular lens) implanted eye. When measuring the IOL implante d ey e, press IOL swit ch on the front panel of the body to ac tivate the function. At this time, the icon for IOL switch as well as S, C, and A on the LCD monitor t urns to purple . No. 00001 NAME 200[...]

RB-525-B04 19 6.7 Menu Scr e e n Setting Standard measurem ent mode is preset to be ready to use. Howev er , you can easily a lter the setting if necessary . T o enter the menu screen, press a menu switc h below the LCD monitor . 【 Menu Screen 】 ST ART MANUAL AUTO3   AU TO5 REF NORMAL QUICK( 3) STE P 0.25 0. 12 VD( mm) 0 10 12 13. 5 15 CYL ?[...]

RB-525-B04 20 6.7.1 Each Item Description 【 The First Screen 】  ST ART Selects how to start m easurement. Refer to ' 6.8 Auto Start Function ' for detail. MANUAL: Measurement is taken every time the m easure ment switch is pressed. AUTO 3 : Measurement is automatically star ted when the m easurement requirements are m et. Three mea[...]

RB-525-B04 21  DA T A SCREEN Measurement results stored in m e mory ar e display ed on the screen. Refer to ' 6.8 Data Screen Function ' for detail. O N : All measurement results are displ ayed on the screen. OFF : No measurement results are dis played on the screen.  W-D(cm) Sets near work distance. W hen measurem ent is taken with[...]

RB-525-B04 22  OPTION Selects and sets o ptional functi ons. Refer to ' 6.7.2 Optional Function ' for detail. MESSAGE: shifts to the screen for register ing message. N o . : shifts tot he screen for setting ex aminee's num ber . RS232C : shifts to the screen to set RS232C transmission param eters.  DA TE FORM Selects display fo[...]

RB-525-B04 23 6.7.2 Optional Functions W h e n y o u s e l e c t t h e f u n c t i o n y o u w i s h t o s e t i n ' OPTION ' of Menu screen, yo u can enter each option screen. 【 Each Option Screen and Description 】 I. Message Input Function When this function, yo u can print out regis tered messages in the range of 22 ch aracters/lin[...]

RB-525-B04 24 II. No. Function Y ou can set or change the exam inee's number , and sel ect whether the num ber is displayed on the screen and whether the n umber is printed ou t. When you select this m enu, the screen below will appear and functio n of each switch will change as followin g. Move the cur sor to selec t the item you w ish to cha[...]

RB-525-B04 25 III. RS232C Setting Function W ith this function , you can send the m easurement data to an external computer t hrough an interface. The data is sent using ASCII CODE. When you select this m enu, the screen on the left will appear and f unction of each switch will c hange as shown. 【 Each Item Description 】 1. BAUDRA TE : selectio[...]

RB-525-B04 26 (1) Move the cursor to the item you wish to set/ change with switch and execute with switch. (2) When the setting is completed, pr ess switch to go ba ck to the m enu screen. 【 Connection method 】  Connection D-Sub25pin D-Sub9pin TXD 2 2 RXD RXD 3 3 TXD DSR 6 4 DTR SG (GND) 7 5 SG (GND) DTR 20 6 DSR ※ If you have any inquirie[...]

RB-525-B04 27 6.8 Auto Star t F u nction KW-2000 incorporat es Auto Start Function. This function st arts measuring aut omatically when a lignment m eets the measurement requirement, a nd also prints out autom atically when the measurement of b oth eyes com pletes. (1) When you wish to measure with auto start function, select ' AUT O3 ' o[...]

RB-525-B04 28 (6) After both eyes are measured, t he arrow will disappear and the measurem ent result will be automatically printed out. (7) If you wish to conti nue to measure with auto start function , realignment is necessary . When you wish to cancel auto st art f unction, change the setting of 'ST ART' back to 'MANUAL' in t[...]

RB-525-B04 29 6.9 Data Scre e n F unction Data screen function allows you to check measur em ent results saved in the m emory on the screen. (1) Select ' ON ' in ' DA T A SCREEN ' of the Menu screen. (2) After the measurement, press switch, and the data screen will app ear as shown on the left. (3) Displaying the da ta on the sc[...]

RB-525-B04 30 6.10 Power Sa v i ng Function Power saving function will st art operating when swit ch operation is suspended with the power on. (The switchover tim e (in minute) can be selected at ' SA VE ' on the mode selection screen. ) T o return to the measurement mode, press any switch (any switch on the front panel or the measurem en[...]

RB-525-B04 31 7. Tips for Effective Measurement (1) Do not allow externa l light to dire ctly penetrate t he room. (2) Fluctuation of va lues during measurem ent may occur if the examinee looks s omething other t han the target. Ur ge the examinee to concentrate on t he tar get set in front. (3) T alk to the exam inee in a relaxe d and friendly m a[...]

RB-525-B04 32 8. Error Messages KW-2000 autom atically evaluates measurement co ndition or result and indicates error m essages if it is invalid. Error messages als o appear when abnorm ality is detected in its operational system . When any error m essage appears, always check the sy stem with a supplied model eye. If it appe ars when no abnorm ali[...]

RB-525-B04 33 9. Contact Lens: Base Curve Measurement Y ou can measure a base c urve of a hard c ontact lens wit h KW-2000. T o do so, attach a contact l ens onto a contac t lens holder of t he model eye as following. (1) Put a small am ount of water on a concave side of th e contact lens holder . (2) Place the contact le ns so that its co nvex sid[...]

RB-525-B04 34 10. T roubleshooting If there are any m alfunction found, refer to the table below to take appr opriate measures. CAUTION Never disassemble, modify or repair the instrum ent. Personal injury may result from elect ric shock. Symptom Causes and Measures The monitor and power indicator are not turned on. • The power cord m ay be not pr[...]

RB-525-B04 35 11. Storage and Maintenance 11.1 Reloading P ri n ter Paper 1) Remove a printer cover a nd take a printer paper shaft out. 2) Lift a printer cutter p art and pull up a head-up lever . 3) Set a roll of printer paper , paying attention to direction of the paper rolled up. 4) Insert the loose end o f the paper behind a rubber rolle r . P[...]

RB-525-B04 36 11.2 Fuse Rep l a cement CAUTION When replacing a fuse, unplug the power cord from the unit before removing the fuse holder . Y ou may be in danger of electric sh ock if you remove the fuse holder without unpluggi ng the po wer cord. When a fuse is blow n, remove a fuse h older at the side of a main uni t for replacem ent. Pushing the[...]

RB-525-B04 37 11.4 Confirma t i on of Measurement Accuracy It is extremely im portant to chec k operation an d accuracy of the instrument using a supplie d model eye. W e recommend you to check accuracy periodi cal ly . When the measurem ent result of the model eye falls anyw here within the tolerance lis ted below , measurement should be considere[...]

RB-525-B04 38 12. Specifications Sphere (S) -25 ∼ +25D (step: 0.12/0. 25D) Cylinder (C) 0 ∼± 10D (step: 0.12/0.25D) Refractive Measurem ent Range Axis (A) 0 ∼ 180º (step: 1°) Sphere between − 10 ∼＋ 10D : ± 0.25D beyond ± 1 0 : ± 0.5D Measurement Accuracy Cylinder ± 0.25D Radius of Corneal Curvature 5.0 ∼ 10.0mm (step: 0.01mm) C[...]

RB-525-B04 Prepared: 2002. 12. 4 Printed on recycled paper . Life Science Division No.4-14, 3-chome, Nihonbashi-Honc ho, Chuo-ku, T okyo 103-843 3, Japan Phone: 81(3) 3279-7312 Facsimile: 81(3) 3245-1 109 20001 So. V ermont Ave. T orrance, CA 90502, U.S.A. Phone: 1(310) 327-1913 Facsimile: 1(310) 327-4177 Immermannstrasse 65A 40210 Dusseldorf F .R.[...]