INSTRUCTION MANUAL AUTO REFRACTOMETER RM-8900 AUTO KERATO-REFRACTOMETER KR-8900
INTRODUCTION Thank you for purchasing the Auto Refractometer RM-8900, Auto Kerato-Refractometer KR-8900. This instrument is used to measure the spherical refractive-power,cylindrical refractive power, the direction of astigmatic axis, the radius of curvature, the direction of principal meridian and the corneal refractory power. This instrument features the following: • Measures the refractory power of eye and the corneal curvature with simple operations.
PRECAUTIONS BASIC INSTRUCTIONS • To avoid electrical shock, do not open the instrument. Refer all servicing to only qualified personnel. • Electrical shock may cause burns or possible fire. Turn the main power switch OFF and UNPLUG the power cord before replacing fuses. Replace only with fuses of the correct rating. • To avoid potential injury during operation, do not touch the patient’s eyes or nose with the instrument.
SAFETY DISPLAYS In order to encourage the safe use of the instrument and to avoid danger to the operator and others as well as damage to properties, warnings are described in the Instruction Manual and marked on the instrument body. We suggest you thoroughly understand the meaning of the following displays/icons and Safety Cautions, as well as read the Manual, and strictly observe the instructions.
SAFETY CAUTIONS WARNINGS Icon Meaning Page To avoid electric shocks, do not attempt overhauling, rebuilding or repairs. Ask your dealer for repair. 74 To avoid electric shocks, do not remove covers from bottom and top surfaces, monitor, measuring unit, etc. 74 To prevent shock hazard, do not allow water or other foreign matter to enter the instrument. –– To avoid fire and electric shocks in case of tumbling, do not place a cup or vessel containing water/fluid on the instrument.
SAFETY CAUTIONS CAUTIONS Icon Meaning Before moving the instrument, fasten the clamping knob at the bottom surface to stop movements. Negligence of this may cause injury by falling parts. When moving the instrument, be sure to hold it at the bottom surface with two persons. Carrying by one person may cause a backache or injury by falling parts. Also, holding ares other than the bottom surface may cause pinching fingers between parts and injury by falling parts as well as damage to the instrument.
USAGE AND MAINTENANCE Usage: • Since the Auto Refractometer is an electric equipment for medical purposes, the operation should be supervised by a well-experienced doctor. USER MAINTENANCE To maintain the safety and performance of the equipment, never attempt to do maintenance and except for the items specified here. For details, follow the instructions. FUSE CHANGE: For details, See “FUSE CHANGE” on page 86. CLEANING OF EXAMINATION WINDOW: For details, See “CLEANING THE INSTRUMENT” on page 83.
WARNING INDICATIONS AND POSITIONS To secure safety, this equipment provides warnings. Correctly use the equipment following these warning instructions. If any of the following marking labels are missing, please contact your dealer or TOPCON to the address stated on the back cover. CAUTION • To avoid potential injury during operation, do not touch the patient’s eyes or nose with the instrument. WARNING • To avoid electrical shock, do not open the instrument. Refer all servicing to only qualified personnel.
CONTENTS INTRODUCTION ................................................................................................1 PRECAUTIONS ..................................................................................................2 WORKING ENVIRONMENT ...............................................................................2 STORAGE, USAGE PERIOD AND OTHERS ....................................................2 ENVIRONMENTAL CONDITIONS FOR PACKING IN TRANSPORTATION ..... 2 SAFETY DISPLAYS .............
TROUBLESHOOTING TROUBLE-SHOOTING OPERATIONS ............................................................73 SPECIFICATIONS AND PERFORMANCE ELECTROMAGNETIC COMPATIBILITY .........................................................77 ELECTRIC RATING .........................................................................................81 SYSTEM CLASSIFICATION ............................................................................81 DIMENSIONS AND WEIGHT ....................................................
COMPONENT NAMES MAIN BODY COMPONENTS Measuring Head Unit Measuring Head monitor Measurement switch Contorol lever Clamping knob Base Unit Control panel Power lamp Clamping knob (for movement) External I/O terminal Chinrest Unit Forehead rest Examination window Eye height mark Brightness volume Printer cover open switch Chinrest tissue pin Chinrest Power switch Cap (for examination window) 10 COMPONENT NAMES
CONTROL PANEL COMPONENTS RM-8900 Print switch Menu switch IOL switch Graphic print switch Target image observation switch Fixation target brightness switch CYL (cylinder) display selection switch Print switch.................................... Prints out the measurement result. When there is no measurement value, press the switch to feed paper. Menu switch .................................. Displays the menu screen. IOL switch .....................................
KR-8900 Print switch Graphic print switch Menu switch Auto start switch Target image observation switch IOL switch Fixation target brightness switch CYL (cylinder) display selection switch Measurement mode switch Cornea diameter switch Print switch........................... Prints out the measurement result. When there is no measurement value, press the switch to feed paper. Menu switch ......................... Displays the menu screen. IOL switch ............................
MONITOR SCREEN RM-8900 MEASURING SCREEN (LAYOUT 1) IOL Mode S + 0.00 C +0.50 A 100 Fixation target brightness R L 03 / 03 CYL power symbol Vertical distance Instrument No. Patient No. Target eye CYL VD (-) 12.00 01 0001 R L S + 0.00 C +0.50 A 100 Result of refractory power measurement Frequency of measurement Alignment mark Smallest measurable pupil diameter mark Typical value MEASURING SCREEN (LAYOUT 2) Result of refractory power measurement (Right eye) Instrument No. Patient No.
KR-8900 MEASURING SCREEN(LAYOUT 1) Mode IOL Mode D/MM mark R K Fixation target brightness S + 0.00 C + 0.50 A 100 H 44.00 V 44.00 A 100 R L R 03 / 03 K 03 / 03 mD CYL power symbol Vertical distance Instrument No. Patient No. Alignment bar Target eye CYL VD (-) 12.00 01 0001 R L S + 0.00 C + 0.
PRINTER OUTPUT RM-8900 Bar code Work ID No. 4/ 0#/' A A #/ 0 Q 8& %;. % # ޛ4 ޜ5 ޛ.ޜ 5 ' 5 % # Patient No. Instrument No.
KR-8900 When "KRT PRINT TYPE" is set to "NORMAL" mode Bar code Work ID No. -4 Patient No. 0#/' Instrument No. A A #/ 0 Q 4'( # 8& %;.
[ mode mode -4 -4 0#/' 0#/' A A #/ 0 Q 4'( # 8& %;. % # ޛ4 ޜ5 ޛ.ޜ 5 ' 5 % # Patient No. Instrument No.]
When "KRT PRINT TYPE" is set to "CLASSIC" mode Bar code Work ID No. Instrument No. Patient No. Instrument No. VD (vertical distance) Cylindrical power mark Right eye measurements Measurement Results of 5 right eye measurements (recordable up to 10 measurements) Typical value of riht eye (The * mark is displayed when 3 or more measurements are done.) Equivalent spherical power of right eye The ( ) mark is added when measurement values are not fully reliable. The I mark is displayed at IOL mpde.
[ mode mode Patient No. Instrument No.]
STANDARD ACCESSORIES The following are standard accessories. Make sure that all these items are included (quantity).
PREPARATIONS INSTALLATION 1 2 CAUTION Before moving the instrument, fasten the clamping knob at the bottom surface to stop movements. Negligence of this may cause injury by falling parts. CAUTION When moving the instrument, be sure to hold it at the bottom surface with two persons. Carrying by one person may cause a backache or injury by falling parts.
CONNECTING POWER CABLE WARNING Be sure to connect the power plug to an AC 3-pin receptacle equipped with grounding. Connection with receptacle without grounding may cause fire and electric shock in case of shortcircuiting. CAUTION To avoid electric shocks, do not handle the power plug with wet fingers. 1 2 Make sure that the power switch of the main body is off. 3 Plug the power cable to a grounded 3-pin AC receptacle. Plug the power cable to the main body.
DATA IN Also, this machine may be connected with a bar code reader using RS232C. 1 2 Connect the connection cable to the IN terminal of the main body. Connect the other end of the connection cable to the external device. INITIAL SETTINGS In the initial setting, settings such as patient No., instrument No., refractory power shift, ON LINE, auto print, etc. can be done. PREPARATION FOR INITIAL SETTING 1 Make sure of the connection of power cable. For connection, see “CONNECTING POWER CABLE” on page 22.
INITIAL SET SCREEN In the INITIAL SET screen, buzzer sound, refractory power shift, display of typical value in monitor screen and date can be changed. 1 In the “INITIAL MENU SCREEN”, make sure that the cursor is on “INITIAL SET”, and then press the PRINT SWITCH . The monitor screen is changed to the INITIAL SET SCREEN. INITIAL SET BUZZER DPTR SHIFT AVERAGE DISP. DATE INIT AUTO C.D MEMORY CREDIBILITY.
SHIFTING REFRACTORY POWER The refractory power (S value) can be shifted. Before shipment, it is set to +0.37. 1 In the “INITIAL MENU SCREEN”, choose “INITIAL SET” and get the “INITIAL SET” screen. INITIAL SET BUZZER DPTR SHIFT AVERAGE DISP. DATE INIT AUTO C.D MEMORY CREDIBILITY.NUM MENU SWITCH IOL SWITCH MEASURE SWITCH 2 3 +0.37 UP DOWN ITEM Press the MEASUREMENT SWITCH and move the cursor to “DPTR SHIFT”. Pressing the MENU SWITCH increases the value. Pressing the IOL SWITCH decreases the value.
CHANGING DATE DISPLAY The date format of printout can be changed. Before shipment, it is set to “JUN.01.2003”. 1 In the “INITIAL MENU SCREEN”, choose “INITIAL SET” and get the “INITIAL SET SCREEN”. INITIAL SET BUZZER DPTR SHIFT AVERAGE DISP. DATE INIT AUTO C.D MEMORY CREDIBILITY.NUM MEASURE SWITCH PRINT SWITCH 2003.12.01 DEC.01.2003 01.DEC.2003 ITEM SELECT 2 3 Press the MEASUREMENT SWITCH and move the cursor to “DATE”. 4 Press the MEASUREMENT SWITCH , and the cursor returns to “EXIT”.
CHANGING THE CORNEA DIAMETER MEASUREMENT METHOD (Only in KR-8900) The method of cornea diameter measurement can be chosen between the measurement using the actual image or the static image. Before shipment, the setting is NO (measurement using actual image). 1 Press the MEASUREMENT SWITCH and bring the cursor to C.D MEMORY. INITIAL SET BUZZER DPTR SHIFT AVERAGE DISP. DATE INIT AUTO C.D MEMORY CREDIBILITY.
ADD FACTOR The ordinary additional power (ADD) can be printed out. Before shipment, it is set to [NO] (no printout). 1 In the “INITIAL MENU SCREEN”, choose “INITIAL SET” and get the “INITIAL SET SCREEN”. INITIAL SET DPTR SHIFT AVERAGE DISP. DATE INIT AUTO C.D MEMORY CREDIBILITY.NUM ADD MODE MEASURE SWITCH PRINT SWITCH YES NO ITEM SELECT 2 3 4 Press the MEASUREMENT SWITCH and move the cursor to “ADD MODE”. 5 Press the MEASUREMENT SWITCH , and the cursor returns to the first item (BUZZER).
NO. SETTING In the NUMBER SET screen, patient No. setting, monitor screen display of patient No., printing patient No., resetting of patient No., instrument No. setting, monitor screen display of instrument No. and printing instrument No. can be changed. 1 In the “INITIAL MENU SCREEN”, press the MEASUREMENT SWITCH and move the cursor to “NUMBER SET”. 2 Press the PRINT SWITCH , and the monitor screen is changed to the “NUMBER SET SCREEN”. NUMBER SET SERIAL NO.
MONITOR SCREEN DISPLAY OF PATIENT NO. The patient No. can be displayed in the monitor screen. Before shipment, it is set to (YES). 1 In the “INITIAL MENU SCREEN”, choose “NUMBER SET” and get the “NUMBER SET SCREEN”. NUMBER SET SERIAL NO. SERIAL TV SERIAL PRT SERIAL RESET INSTRUMENT NO. INSTRUMENT TV INSTRUMENT PRT EXIT MEASURE SWITCH PRINT SWITCH YES NO ITEM SELECT 2 3 Press the MEASUREMENT SWITCH and move the cursor to “SERIAL TV”.
RESETTING PATIENT NO. The patient No. can be reset by switching on the power source. Before shipment, it is set to “NO” (no reset). 1 In the “INITIAL MENU SCREEN”, choose “NUMBER SET” and get the “NUMBER SET SCREEN”. NUMBER SET SERIAL NO. SERIAL TV SERIAL PRT SERIAL RESET INSTRUMENT NO. INSTRUMENT TV INSTRUMENT PRT EXIT MEASURE SWITCH PRINT SWITCH 2 3 4 YES NO ITEM SELECT Press the MEASUREMENT SWITCH and move the cursor to “SERIAL RESET”.
MONITOR SCREEN DISPLAY OF INSTRUMENT NO. The instrument No. can be displayed in the monitor screen. Before shipment, it is set to “NO” (no display). 1 In the “INITIAL MENU SCREEN”, choose “NUMBER SET” and get the “NUMBER SET SCREEN”. NUMBER SET SERIAL NO. SERIAL TV SERIAL PRT SERIAL RESET INSTRUMENT NO. INSTRUMENT TV INSTRUMENT PRT EXIT MEASURE SWITCH PRINT SWITCH YES NO ITEM SELECT 2 3 Press the MEASUREMENT SWITCH and move the cursor to “INSTRUMENT TV”.
PRINTOUT In the PRINT OUT screen, printout format, KRT printout format (only KR-8900), printing equivalent spherical power, printing computer lensmeter data, and printing bar code can be changed. 1 In the “INITIAL MENU SCREEN”, press the MEASUREMENT SWITCH and move the cursor to “PRINT OUT”. 2 Press the PRINT SWITCH , and the monitor screen is changed to the “PRINT OUT SCREEN”.
R/K PRINTOUT FORMAT(ONLY KR-8900) You can set the printout type in the [R/K] mode. "NORMAL" (Print out only the central diopter value of kerato data) is set when shipped. 1 In the “INITIAL MENU SCREEN”, choose “PRINT OUT” and get the “PRINT OUT SCREEN”. KRT PRINT TYPE NORMAL CLASSIC 2 3 Press the MEASUREMENT SWITCH and move the cursor to “KRT PRINT TYPE”. 4 Press the MEASUREMENT SWITCH , and the cursor goes to the next item.
PRINTING COMPUTER LENSMETER DATA Computer lensmeter data can be printed. Before shipment, it is set to “NO” (no printout). 1 In the “INITIAL MENU SCREEN”, choose “PRINT OUT” and get the “PRINT OUT SCREEN”. PRINT OUT KRT PRINT TYPE MEASURE SWITCH PRINT SWITCH 2 3 4 YES NO ITEM SELECT Press the MEASUREMENT SWITCH and move the cursor to “CL PRINT”. Press the PRINT SWITCH and choose “YES” (printout) or “NO” (no printout). Press the MEASUREMENT SWITCH , and the cursor goes to the next item.
AUTO PRINT AFTER FINISHING AUTO START MEASUREMENT (Only in KR-8900) 1 Press the MEASUREMENT SWITCH and bring the cursor to AUTO PRINT. PRINT OUT KRT PRINT TYPE MEASURE SWITCH PRINT SWITCH 2 3 Press the PRINT SWITCH YES NO ITEM SELECT and choose “YES” (auto printout) or “NO” (no auto printout). Press the MEASUREMENT SWITCH for setting; the cursor moves to the next item. CHANGING THE PRINTOUT DISPLAY ORDER (Only in KR-8900) 1 Press the MEASUREMENT SWITCH and bring the cursor to DATA ORDER.
CHANGING THE PRINTOUT DISPLAY ORDER (Only in KR-8900) 1 Press the MEASUREMENT SWITCH and bring the cursor to “PRINT R/L”. PRINT OUT KRT PRINT TYPE DATA R/L PRINT R / L MEASURE SWITCH PRINT SWITCH ITEM SELECT 2 Press the PRINT SWITCH and choose DATA (separate printout for REF/KRT), or R/L (printout of right eye and left eye in this order, irrespective of REF/KRT) 3 Press the MEASUREMENT SWITCH for setting; the cursor moves to the next item.
CUSTOM-PRINT SETTINGS This machine provides the ability to select the items to be printed, called the custom print function. On the custom-print screen, the details of the following items can be changed individually: refraction measurement values, cornea measurement values, corneal astigmatism and axial angles, PD values, the name, date, VD values, cylindricity mark and the TOPCON mark On/Off. 1 On the “PRINT OUT SCREEN”, press the “PRINT TYPE”.
CHANGING THE PRINT TYPE OF REFRACTION MEASUREMENT VALUES The print type of refraction measurement values may be changed. Before shipment it is set to “ALL” (print all data). 1 On the “PRINT OUT SCREEN”, move the cursor to “PRINT TYPE”, and with “CSTM” selected, press the IOL SWITCH and get the “CSTM SCREEN”. CUSTOM PRINT REF DATA KRT DATA KRT AVE KRT CYL PD DATA NAME MEASURE SWITCH PRINT SWITCH ALL AVE ITEM SELECT 2 3 Press the MEASUREMENT SWITCH and move the cursor to “REF DATA”.
PRINTING AVERAGE VALUES OF CORNEA MEASUREMENTS (Only in KR-8900) Average values of cornea measurements may be printed out. Before shipment it is set to “YES” (print average values). 1 On the “PRINT OUT SCREEN”, move the cursor to “PRINT TYPE”, and with “CSTM” selected, press the IOL SWITCH and get the “CSTM SCREEN”. CUSTOM PRINT REF DATA KRT DATA KRT AVE KRT CYL PD DATA NAME MEASURE SWITCH PRINT SWITCH YES NO ITEM SELECT 2 3 Press the MEASUREMENT SWITCH and move the cursor to “KRT AVE”.
PRINTING PD VALUES PD values may be printed out. Before shipment it is set to “YES” (print PD values). 1 On the “PRINT OUT SCREEN”, move the cursor to “PRINT TYPE”, and with “CSTM” selected, press the IOL SWITCH and get the “CSTM SCREEN”. CUSTOM PRINT REF DATA KRT DATA KRT AVE KRT CYL PD DATA NAME MEASURE SWITCH PRINT SWITCH YES NO ITEM SELECT 2 3 Press the MEASUREMENT SWITCH and move the cursor to “PD DATA”. 4 Press the MEASUREMENT SWITCH . The cursor moves to the next item.
PRINTING THE DATE The date may be printed out. Before shipment it is set to “YES” (print date). 1 On the “PRINT OUT SCREEN”, move the cursor to “PRINT TYPE”, and with “CSTM” selected, press the IOL SWITCH and get the “CSTM SCREEN”. CUSTOM PRINT KRT DATA KRT AVE KRT CYL PD DATA NAME DATE MEASURE SWITCH PRINT SWITCH 2 3 4 YES NO ITEM SELECT Press the MEASUREMENT SWITCH and move the cursor to “DATE”. Press the PRINT SWITCH and select “YES” (print date), or “NO” (do not print date).
PRINTING THE CYLINDRICITY MARK The cylindricity mark may be printed out. Before shipment it is set to “YES” (print cylindricity mark). 1 On the “PRINT OUT SCREEN”, move the cursor to “PRINT TYPE”, and with “CSTM” selected, press the IOL SWITCH and get the “CSTM SCREEN”. CUSTOM PRINT YES NO KRT CYL PD DATA NAME VD CYL MEASURE SWITCH PRINT SWITCH ITEM SELECT 2 3 Press the MEASUREMENT SWITCH and move the cursor to “CYL”. 4 Press the MEASUREMENT SWITCH . The cursor moves to the next item.
ON-LINE (DATA COMMUNICATION) In the ON-LINE screen, computer lensmeter data receiving format, communication format and communication speed can be changed. 1 In the “INITIAL MENU SCREEN”, press the MEASUREMENT SWITCH and move the cursor to “ON-LINE”. 2 Press the PRINT SWITCH , and the monitor screen is changed to the “ON-LINE SCREEN”.
2 3 Press the MEASUREMENT SWITCH and move the cursor to “CL INPUT”. 4 Press the MEASUREMENT SWITCH , and the cursor goes to the next item. Press the PRINT SWITCH and choose: NO (no receiving); OLD (OLD RS232C format); NEW (NEW RS232C format); STD1 (STD1 RS232C format); R-ID (receives patient No. via RS232C input port for processing as real ID); or W-ID (receives patient No. via RS232C input port for processing as work ID). SETTING COMMUNICATION FORMAT The communication format can be set.
SETTING RS232C COMMUNICATION SPEED The RS232C communication speed can be set. Before shipment, it is set to “2400” (baud rate 2400). 1 In the “INITIAL MENU SCREEN”, choose “ON-LINE” and get the “ON-LINE SCREEN”. ON-LINE CL INPUT DATA FORMAT BAUD-RATE OUTPUT DATA TYPE EXIT MEASURE SWITCH PRINT SWITCH 2400 9600 ITEM SELECT 2 3 Press the MEASUREMENT SWITCH and move the cursor to “BAUD-RATE”. 4 Press the MEASUREMENT SWITCH , and the cursor goes to the next item.
MENU SETTING In menu setting, data step, contact/glasses, continuous measurement, RS232C, date and time can be set. PREPARATION FOR MENU SETTING 1 Make sure of the connection of power cable. For connection, see “CONNECTING POWER CABLE” on page 22. 2 Press “ON” the power switch. DISPLAYING MENU SCREEN 1 2 Make sure of the measurement screen. Press the MENU SWITCH of the control panel. Make sure or the “SETTING MENU SCREEN”. SETTING MENU STEP AXIS STEP VD CONT.MEAS.
SETTING STEP The measurement step can be selected from 0.12, 0.25. Before shipment, it is set to “0.25”. 1 Press the MENU SWITCH of the control panel and get the “SETTING MENU SCREEN”. “STEP” is inverted, and measurement steps are displayed on the right with the set step inverted. 2 Press the PRINT SWITCH and invert the desired measurement step. SETTING MENU STEP AXIS STEP VD CONT.MEAS. OUTPUT DATA ADD DATE TIME MEASURE SWITCH PRINT SWITCH 3 0.12 0.25 ITEM SELECT Press the MEASUREMENT SWITCH .
SETTING VD In VD setting, contact (0) or glasses (12mm or 13.75mm) can be selected. Before shipment, it is set to glasses (12mm). 1 2 Press the MENU SWITCH of the control panel and get the “SETTING MENU SCREEN”. 3 Press the PRINT SWITCH and invert the desired “VD” figure. Press the MEASUREMENT SWITCH and invert “VD”. VD figures are displayed on the right. SETTING MENU STEP AXIS STEP VD CONT.MEAS. OUTPUT DATA ADD DATE TIME MEASURE SWITCH PRINT SWITCH 4 0.00 12.00 13.
SETTING OUTPUT DATA The RS232C output can be set. Before shipment, it is set to “NO” (no output). 1 2 Press the MENU SWITCH of the control panel and get the “SETTING MENU SCREEN”. 3 Press the PRINT SWITCH and invert “YES” for RS232C output. Press the MEASUREMENT SWITCH and invert “OUTPUT DATA”. “YES” and “NO” are displayed on the right. SETTING MENU STEP AXIS STEP VD CONT.MEAS. OUTPUT DATA ADD DATE TIME YES NO MEASURE SWITCH PRINT SWITCH 4 ITEM SELECT Press the MEASUREMENT SWITCH .
SETTING DATE/TIME 1 2 Press the MENU SWITCH of the control panel and get the “SETTING MENU SCREEN”. 3 Press the PRINT SWITCH and invert the desired item. Press the MEASUREMENT SWITCH and invert “DATE/TIME”. The date/time is displayed on the right. Change figures by pressing the MENU SWITCH (increase) or IOL SWITCH (decrease). SETTING MENU STEP AXIS STEP VD CONT.MEAS.
SETTING HV/R1R2 (Only in KR-8900) You can select how the cornea measurement is displayed on the monitor screen from either HV (horizontal/vertical direction) or R1R2 (radius of curvature of first/second principal meridian). When shipped, the HV(horizontal/vertical direction) is selected as the default setting. 1 Press the MENU SWITCH to call up the menu screen. The HV/R1R2 cursor is inverted and the measurement step is displayd on the right. SETTING MENU VD CONT.MEAS.
PRINTER PAPER SETTING NOTE: 1 Press the • Note that printing cannot be done if the paper back faces up by setting the roll in opposite direction. PRINTER COVER OPEN SWITCH to open the printer cover. Printer cover Printer cover open switch 2 Open the printer cover to the utmost limit. 3 As taking care for the winding direction, load the paper into the printer and pull out the paper end to your side by 7 to 8cm.
4 Arrange the position so that the paper can come out from the center of the printer outlet. Then, close the printer cover. . Unless the printer cover is correctly closed, it is not possible to execute printing. At this time, "CLOSE PRT COVER" is displayed on the monitor screen. A 58mm wide paper roll (example: TF50KS-E2C [Nippon Paper Co.]) is recommended. Other paper rolls may cause unnecessarily large printing noise or unclean printing.
BASIC OPERATIONS PREPARATION BEFORE MEASUREMENT APPLYING POWER SOURCE 1 Make sure of the connection of power cable. For connection, see “CONNECTING POWER CABLE” on page 22. 2 3 Press on the POWER SWITCH . Confirm that the title screen is displayed and then the MEASUREMENT screen is displayed in a few seconds. POSITIONING THE PATIENT CAUTION To avoid injury, do not insert fingers under the chinrest. *Be sure to instruct the patient about this. 1 2 3 Make sure of the measurement screen.
5 Adjust the chinrest height so that the patient's eye becomes level with the eye height mark.
MEASUREMENT UNDER AUTO START MODE (ONLY IN KR-8900) NOTICE • Adjust the height of automatic instrument table so that the patient can sit on the chair with comfort to obtain correct measurement values. POSITIONING THE PATIENT In the initial status after power on, the mode is set to the auto start. 1 2 Make sure of the measurement screen. Press AUTO START SWITCH on the control panel and display the alignment bar in the monitor screen. R K S H mD D CYL VD (-) 12.
COLLIMATION AND MEASUREMENT (ADJUSTING THE PATIENT'S EYE TO AUTO REFRACTOMETER) Alignment operations are done with the control lever. Movement operations of the main body using the control lever. • The main body position can be fine-adjusted laterally by inclining the control level to each direction. Operating the control lever (for lateral adjustment) • The main body position can be fine-adjusted vertically by turning the control level right (up) and left (down).
1 Hold the control lever and move the main body to the operator side. 2 Operate the control lever laterally and vertically to obtain the target eye in the center of monitor screen. R K S H C V mD D CYL VD A AR L R 00 / 00 K 00 / 00 (-) 12.00 01 0001 R L 3 While moving the main body toward the patient, focus the target eye. A vague, reflected luminous point for alignment appears on the cornea. R K mD D Luminous point CYL VD (-) 12.
5 Keeping the luminous point within the alignment mark, slowly move the main body toward the patient. When the main body approaches the target eye, the alignment bar of the monitor screen changes to arrows. R K S H C V A AR L R 00 / 00 K 00 / 00 mD D Minimum pupil diameter CYL VD (-) 12.00 01 0001 R L Take care so that eyelashes and eyelid do not come into the minimum pupil diameter mark as they may disturb measurement.
6 After the alignment bar is displayed, move the main body slowly towards the patient. Measurement is done and the measurement value is displayed on the monitor screen. R K VD A A180 R L R 01 / 00 K 00 / 00 mD D CYL S-1.00 C H 7.71 V 7.70 (-) 12.00 01 0001 R L • To stop auto start Press the MEASUREMENT SWITCH , and release it after hearing the buzzer sounds twice. Auto measurement is stopped. To return to auto measurement, press the again.
MEASUREMENT UNDER MANUAL MODE NOTICE • Adjust the height of automatic instrument table so that the patient can sit on the chair comfortably to obtain accurate measurement values. SETTING THE PICTURING MODE In the initial status after power on, the mode is set to the auto start. 1 2 Check of the measurement screen. Press AUTO START monitor screen. on the control panel and erase the alignment bar from the R K mD D CYL VD (-) 12.
1 Operate the control lever laterally and vertically so as to obtain the target eye in the center of monitor screen. R K S H C V mD D Luminous point CYL VD A AR L R 00 / 00 K 00 / 00 Alignment mark (-) 12.00 01 0001 R L 2 While moving the main body toward the patient, focus the target eye. A vague, reflected luminous point for alignment appears on the cornea. Focus the target eye to make the luminous point minimum.
ERASING MEASUREMENT VALUES 1 While pressing the MENU SWITCH of the control panel, press the PRINT SWITCH . All measurement values, both right and left eyes are cleared, and the system returns to the initial status after power on.
INDIVIDUAL OPERATIONS PRINT-OUT OF MEASUREMENT VALUES NOTICE • To avoid paper jam in the printer, do not feed the paper if it is partly cut/torn or wrinkled. • To avoid discoloring the printing paper (particularly the recording area) during storage, use a polypropylene holder and not one containing plasticizer (PVC, etc.). • To avoid discoloring the printing paper (particularly the recording area) after pasting, use water soluble glue and not one containing solvent.
3 To cut the paper, hold the top left corner and pull it diagonally, as illustrated.
MEASUREMENT OF CORNEA DIAMETER (ONLY IN KR-8900) For the measurement of cornea diameter, “C.D.MEMORY YES” (measurement of static image) or “C.D.MEMORY NO” (measurement of dynamic image) can be selected in the initial setting. For changing settings, see “Changing the cornea diameter measurement method (Only in KR8900)” on page 27. MEASURING THE DYNAMIC IMAGE 1 Focus the target eye. R K S H C V mD D CYL VD A AR L R 00 / 00 K 00 / 00 (-) 12.00 01 0001 R L 2 Press the CORNEA DIAMETER SWITCH .
4 Bring the left positioning bar to the left end of iris by pressing the AUTO START SWITCH (for moving left) and TARGET IMAGE (for moving right). CORNEA DIAMETER R L L 5 6 7 R L Press the MEASUREMENT SWITCH . The guide mark moves right. Bring the right positioning bar to the right end of iris by pressing the AUTO START SWITCH (for moving left) and TARGET IMAGE (for moving right). If it is necessary to move the left positioning bar again, press the MEASUREMENT MODE SWITCH .
• To get out of the mode during measurement, press the PRINT SWITCH . • When the measurement result is necessary for one eye only, do the measurement and then press the PRINT SWITCH and get out of the mode. • Under the REF mode, the measurement of cornea diameter cannot be done. MEASURING THE STATIC IMAGE 1 Focus the target eye. R K S H C V mD D CYL VD A AR L R 00 / 00 K 00 / 00 (-) 12.00 01 0001 R L 2 Press the CORNEA DIAMETER SWITCH .
5 Store the image of left eye in like manner. CORNEA DIAMETER L R L (Measuring the left eye only) 6 7 8 Press the CORNEA DIAMETER SWITCH . Make sure of the cornea diameter screen. Bring the left positioning bar to the left end of iris by pressing the AUTO START SWITCH (for moving left) and TARGET IMAGE (for moving right). If it is necessary to move the lft positioning bar again, press the MEASUREMENT MODE SWITCH .
MEASUREMENT OF HARD CONTACT LENS 1 Make sure the unit is in the corneal curvature measurement (R/K or KRT) mode. If not, choose the R/K or KRT mode by the MEASUREMENT MODE SWITCH . 2 Fill the concave part at the top of contact lens holder of model eye with water, and paste the contact lens. • The contact lens adheres by surface tension. • Take care not to allow bubbles in between. • Also take care and keep the measured lens surface free of water drops.
INPUT/OUTPUT USING RS232C OUTPUT USING RS232C This instrument can output data to PC and the like via the RS232C interface. 1 Make sure of the connection to RS232C OUT. For connection, see “CONNECTING EXTERNAL I/O TERMINALS” on page 22. 2 Make sure of data communication settings. For data communication settings, see “ON-LINE (DATA COMMUNICATION)” on page 44. 3 4 Do measurements. Press the PRINT SWITCH of the control panel. When output is completed, “ DATA OUT” is displayed in the monitor screen.
TROUBLESHOOTING TROUBLE-SHOOTING OPERATIONS MESSAGES GIVEN DURING MEASUREMENT “OVER-SPH” Spherical power exceeds +22D or -25D. “OVER-CYL” Cylindrical power exceeds ±10D. “OVER-R” Indicates that the corneal curvature exceeds 5.00-10.00mm. “NO TARGET” This indicates there is no target eye or the eye image is too dark. “AGAIN” There is a difference of more than 5D from the previous measurement value. “NO CENTER” There is no target eye center.
TROUBLE-SHOOTING OPERATIONS WARNING To avoid electric shocks, do not attempt overhauling, rebuilding or repairs. Ask your dealer for repair. WARNING To avoid electric shocks, do not remove covers from bottom and top surfaces, monitor, measuring unit, etc. If a trouble is suspected, check conditions following the check list shown below.
SPECIFICATIONS AND PERFORMANCE RM-8900 Sphere: Cylinder: Axis: Minimum pupil diameter measurable: PD measurement: External output terminal: -25D to +22D 0.25D step display (switchable to 0.12D step display) 0 to ±10D 0.25D step display (switchable to 0.12D step display) 0 to 180°1° step display (switchable to 5° step display) (Sphere+Cylinder +22D or Sphere+Cylinder -25D) 2.
KR-8900 Sphere: Cylinder: Axis: Radius of corneal curvature: Corneal refractory power: Corneal astigmatic power: Corneal astigmatic axis angle: Minimum pupil diameter measurable PD measurement External output terminal: ESSENTIAL PERFORMANCE *Measurement must be performed correctly. Monitor screen display must not be distorted. 76 SPECIFICATIONS AND PERFORMANCE -25D to +22D 0.25D step display (switchable to 0.12D step display) 0 to ±10D 0.25D step display (switchable to 0.
ELECTROMAGNETIC COMPATIBILITY The product conforms to the EMC standard (IEC 60601-1-2 Ed2.1:2004) a)MEDICAL ELECTRICAL EQUIPMENT needs special precautions regarding EMC and needs to be installed and put into service according to the EMC information provided in the ACCOMPANYING DOCUMENTS. b)Portable and mobile RF communications equipment can affect MEDICAL ELECTRICAL EQUIPMENT.
Guidance and manufacturer's declaration - electromagnetic immunity The RM-8900,KR-8900 is intended for use in the electromagnetic environment specified below. The customer or the user of the RM-8900,KR-8900 should assure that it is used in such an environment. IEC 60601 Compliance Electromagnetic environment Immunity test test level level - guidance Floors should be wood, concrete or ceramic tile.
Guidance and manufacturer's declaration - electromagnetic immunity The RM-8900,KR-8900 is intended for use in the electromagnetic environment specified below. The customer or the user of the RM-8900,KR-8900 should assure that it is used in such an environment.
Recommended separation distance between portable and mobile RF communications equipment and the RM-8900,KR-8900 The RM-8900,KR-8900 is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled.
ELECTRIC RATING Source voltage:100-240V AC, 50-60Hz Power input:RM-8900:60VA KR-8900:75VA SYSTEM CLASSIFICATION Types of protection against electric shocks : This instrument is classified as Class 1 equipment. Class 1 equipment dose not depend only on basic insulation for protection against electric shocks, but also provides a means of connection to a protective earth system of facilities so that metal parts that come into contact do not become conductive while the basic insulation is in failure.
REFERENCE OPTIONAL ACCESSORIES • Automatic instrument table AIT-16 The table height can readily be adjusted to facilitate measurement. Specifications • Dimensions ...............490(W)x525(D)mm • Table height...............665~885mm • Table size ..................490x500mm • Weight .......................approx. 25kg • Power consumption ..
MAINTENANCE DAILY CHECKUPS CHECKING THE MEASURING ACCURACY • Measure the attached model eye and check the accuracy at regular intervals. CLEANING THE INSTRUMENT • Dust on examination window ..... Blow off dust by a blower. • Fingerprints and oil spots on examination window................... Blow off dust by a blower and wipe the surface lightly with a camera lens cleaner using clean gauze. • Dirty instrument cover ................ Wipe the surface with the attached silicon cloth or a dry soft cloth.
USER MAINTENANCE ITEM Item Inspection time Inspection Before using Cleaning When the part is stained Replacement As required Contents • The instrument must oprate • The objective lens must be free of stain or flaw. • Objective lens • External cover, control panel, etc.
ADJUSTING THE MONITOR SCREEN • Though this instrument is properly adjusted before shipment, sometimes screen adjustment is required due to vibrations during transportation. • To adjust contrast and brightness, turn volumes fully clockwise, viewed from the operator side, and then adjust each properly. BRIGHT PRINTER PAPER JAM NOTICE 1 • If the printer paper is jammed in the printer, printing cannot be done, and continued use may cause troubles.
FUSE CHANGE WARNING To avoid electric shocks during fuse change, be sure to unplug the power cable before removing the fuse lid. Also, do not plug the power cable leaving the fuse box open. WARNING Always use the attached fuse (3A 250V). Using any other type may cause troubles and fire. 1 2 Make sure that the power switch of the main body is off and the power cable is off. 3 Replace the fuse with the attached one. Remove the fuse holder by rotating it counterclockwise by a screwdriver.
MAINTENANCE CLEANING THE DUST COVER NOTICE 1 2 • Avoid cleaning plastic parts with solvents. Benzine, thinner, ether an gasoline may cause discoloring and decomposition. If the dust cover, control panel, etc. get soiled, wipe the surface with dry cloth. If the dust cover is noticeably stained, wipe the surface with a cloth which is moistened in a tepid water solution of neutral detergent for food and then squeezed out.
When calling please have ready the following information about your unit: • Machine type: RM-8900,KR-8900 • Manufacturing No. (Shown on the rating plate on the right side of the base.) • Period of Usage (Please give us the date of purchase). • Description of Problem (as detailed as possible). AUTO REFRACTOMETER RM-8900 AUTO KERATO-REFRACTOMETER KR-8900 INSTRUCTION MANUAL Version of 2008 (2008.
AUTO REFRACTOMETER RM-8900 KR-8900 AUTO KERATO-REFRACTOMETER 41842 45990 Printed in Japan 0806-100TH 0
