LM-280 USER'S MANUAL
Contents
1. Power off 4 Fuse sign and standard value Warning Fire Please replace f the fuse with standard value 100 120V T 2A 250V 200 240V T 1A 250V Fuse Parameters is on the lower label of the back B Main Technology Parameters 1 Test scope Ball lens 0 20D Reading Increment 0 01D 0 12D 0 25D Column lens 0 9 99D Reading Increment 0 01D 0 12D 0 25D Ball lens axial position 0 180 Reading Increment 1 Prism 0 9 99 Reading Increment 0 01 AA 0 12AA 0 25A ADD 0 9 99D Reading Increment 0 01D 0 12D 0 25D 2 Astigmatic Test Mode MIX 3 Prism Test Mode X Y Cartesian Coordinates P B Polar Coordinates A mm mm expression Reading resolving power 0 01m Multi beam type double beam progressive multi focus 4 5 6 High Refraction ratio Lens Compensation ABBE value 30 60 7 Display LCD 8 Diameter of Compatible Lens 1Omm 90mm 9 Power Supply AC 220V 50Hz or AC 110V 60Hz 10 Max Power 55W 11 Weight 7KG 12 Outline Size 200 W x 290 D x 450 H mm 13 Optional Accessories P Thermal Printer Chapter 3 Using The Instrument 3 1 Names of out elements and parts Li Power indicator light Monitor contrast Adjust hole Slice handle Nose bridge block Center print handle Baffle move handle I Power on off Fig 1 LM 280 Auto Lensmeter Outline LM 280 Auto Lensmeter Outline showed as Fig 1 Names of2. parameters is confirmed and recorded memory key is unnecessary c Draw the lens outward to make the myopic part close to the optical center of the instrument The display is showed as Fig 14 When the optical focus is in the same position with the center line of the lens while the optical center 1s close to the lower horizontal line of the lens two focuses are made together The hint sound emits and the parameter value ADD of myopic part is displayed Fig 15 Attention if the optical center line of the myopic part is in superposition with the upper line of the lens the optical center line is lower than the bottom horizontal line of the upper lens the instrument will automatically latch and emit hint voice The ADD value is displayed but the checked point is still in the progressive zone and ADD value is small Press the progressive key to return to the Test Screen 0 0U toie Ti 0 00 E 0 00 j i i SI C R aoo fP se E 5 0 50 No G 0 00 e E F At 10 ik d 0 00 i 0 00 i ui Fig 14 Test finished for far sighted part of progressive Fig 15 Progressive view zone when the Test is finished 17 E Check progressive multi focus lens with framework Check with progressive Screen Operation must be careful because of no mark on the lens a Put the lens with framework in the same way b Measure parameters of far sighted part first The center of far sigh
3. lens measuring bearing down the optical glass wipe clean well being re measurement of lens support and then opened machine calibration the picture shows off the lens measuring sticks Block of optical glass cleaning Measuring Support By the following steps calibration operation 1 to ensure that light cleaning glass open the machine The picture shows the normal boot interface 2 under the light of a map icon holding down the key blank about 3 seconds until the hearing Di Di continuous sound the hand can be let go Into the machine calibration the screen will show if the interface 1s shown in Figure 2 into the machine to calibrate the model when the space bar to do the calibration button to the top of the screen calibration model prompt 1 gt 0 00 e m h fi 4 ff 000 Diagram 1 Calibra tion key Diagram 2 3 and then take the standard lens lens normal measurement whenthe target at the center intoa rough sha pe of the cro Ss lin that shown in the diagram under the A ano Coen CLick the button calibration the machine can automatically complete the lens of the current degree of automatic calibration the calibration process that follows the screen appear as shown in Figure suggest that the current standards that mirror the degree of calibration is in progress 25 Oo ee of i ap ae 7 a uimaan po i Ae ULNA 5 the current standard lens
4. parameters of right or left lens at the same time the right or left d part horizontal distance value RPD LPD from the optical center is Ne showed under the left side or left part e Move the nose bridge and framework together right or left put the left or right eyeglass lens on the bracket look for the lens optical center following c when the hint sound stop the right or left part horizontal distance value RPD LPD will be displayed under the left side or left part the optical center horizontal distance PD value is showed too O MARKINGOK MARKING OK LPD 31 5 PD 64 RPD 32 5 Ss Ell a Rk fz eao p DA Fig 16 display of the lens Fig 17 display of the optical center horizontal distance 2 Print When print is necessary after the check is finished press the memory key first then press the print key the instrument will send out the results from the print on the right side When do this the option On must be held Chapter 4 Other Instructions A Revise AUTO LENSMETER is afforded with the function for revising the error When used for long time error between the check value and real value is intolerable It can be amended with the standard lens It is complicate and professional man is required B Maintenance a Please prepare a dust proof cover and cover the instrument when it 1s free in order to reduce the influence of dust b Please set screen protection when the i
5. the elements and parts as follows 3 2 INSTALLATION AND OPERATION 1 Preparation a To install the instrument on the table with no sunlight and intensive reflection avoiding heat wet and dust b To get rid of the sub of center print ink box c To pull up the cushion handle to get rid of the dust proof cushion pull the handle and the framework is settled on the top repeat the operation and the framework set down on the bottom d To collect and check all accessories documents and put them to right place of the tool box e To check the power supply and make it satisfied with the instrument then plug the two ends into the instrument and socket respectively 9 f To turn on the power Initial Screen Fig 2 is showed soon it will convert to Screen 1 Fig 3 Attention if put the lens on the bracket before opening the power the instrument will not convert to Test Screen after the open Screen but to display the hint INITAI ERROR under the Screen please take away with the lens and reopen the power 2 Screen and Menu A Initial Screen Turn on the AUTO LENSMETER the Initial Screen is showed on the display B Test Screen The Test Screen 1 is displayed automatically after the Initial Screen Fig 3 Memo L R ADD Ie Fig 3 Test Screen The Test can be made both under the state of Screen 1 and Screen 2 Operation key is under the control Screen of display
6. Don t press the function indicator on the LCD otherwise the display will be damaged C Menu Screen The choices of Test object method and unit parameters etc are made through the Menu Screen When press the Menu key the target Screen is displayed Fig 4 10 Once the move up move down key is pressed the selected parameter will move up or down one line Now press the move up or move down key the favorable option is available The selected option on the Screen is marked with white beam and up towards arrow When the selection 1s finished return to the Test Screen 510 30 60 min gt 5 ai AQ J Fig 4 Menu Screen Each parameter option is given as table 1 shows Table 1 Parameters options 3 3 Measuring A Test single beam lens 1 Stop the cushion framework on the top and put the convexity of the lens on the bracket upward hold the lens by hand and raise the cushion slowly to the top to fix the lens 2 Move lens and when the lens is close to the drone the 0 type drone will be show on the display When optical center 1s parallel with drone the horizontal line will become longer and the cursor will display the hint MARKING OK Then you can get the data from it 3 Press MEMORY if you want to save the data then S will be showed with contrast color If printing is necessary please press PRINT otherwise press CLEAR 4 Identify left lens o
7. L R S will be showed with contrast color To auto memory the hint sound close to center is easy to operate but the Step is low while in center is with high Step but require more Caution and care Operator can choose mode as he likes Attention if data is saved the lens must be taken away before the next Test press clear key The lens can be put on the bracket for new Test only after the data is cleared If the option Auto memory is closed the cross line is drawn longer but the hint sound will not be heard when the lens optical center 1s close to the drone It has the same Step with optical center focus Press the auto memory key and then the data can be latched by 13 manual Fig 7 and Fig 8 show the second Screen during the Test and Fig a w j P UU Fa a SM A A ai A Il 0 04 k m Fi A i Ny d nO 07 i finished Fig 5Start Screen of Test Fig6 opticalcenter is close to the Screen Fig 7 Final Screen of Test B Check lens with framework Lens fix method is same with A 1 while measure method is same with B 2 for single beam lens here the lens position can be changed by moving framework C Measuring two beams lens 1 Put the lens on the bracket with the convexity side to the far sighted part Fig 8 2 Measure the parameters of far sighted part with the same 14 method for single beam lens 3 Press the memory key under the bracket to confirm and
8. LM 280 AUTO LENSMETER USER S MANUAL Introduction This manual mainly introduces how to correctly use LM 280 Auto Lensmeter In order to operate it more safely and effectively please read this manual carefully before you use this machine Surely if you find any mistake or problem in this manual please do not hesitate to contact Shanghai Yanke Equipment Co Ltd LM 280 Auto Lensmeter is applied to measure the top focus degree and prism degree of eye glass lens and cornea Screen lens orient the axial direction of prism locate and mark the center and axis of the rough lens It can also be used to check whether the glass is installed properly and test the penetration ratio of purple light LM 280 Auto Lensmeter can be used for not only monochromatic lens but also twin focus lens three focuses lens progressive multi focus lens and contact lens LM 280 Auto Lensmeter is digital show focus degree instrument made according to the theory of auto focus Its resolving power is 0 01 m LM 280 Auto Lensmeter is far more favorable in the function and Test Step contrasted to manual focus instrument LM 280 Auto Lensmeter is the first degree focus apparatus based on the Enterprise Standard of NWLKO1 2004 Contents Chapter 1 Safety Measures and Cautions Chapter 2 Label Instruction Chapter 3 Using The Instrument 3 1 Names of out elements and parts 3 2 Installation and operation 3 3 Measuring 3 4Checking Lens A Checking
9. calibration is complete the screen appears as follows map has been completed Prompt Then remove the current standard lenses saidthe resumption ofthe screen interface shown inFigure mo oe 3 gt i n a 26 6 and then on the need to calibrate the degree lens can be calibrated in order 7 calibration operation is completed the machine re b6ot after Che Calibration of Che machine cam be used to normal Prompts the question calibrated machine follow the steps carefully calibrated operation e Ifthecalibrationprocesstooperate properly there might be death At this point can only restart the machine e After resuming the original calibration has been the lens is no needto re calibrate again When you press the button calibration the calibration Leo rhe State and d0 not want tO Calibration restart your machine measuring return to normal status 27
10. ears Press the memory key or The screen protection works suddenly Start the screen again l There is lens on the _ Take out the lens and bracket INITAI ERROR is restart the instrument displayed under the Screen 5 Stick at Start Screen No lens but still display Clear the bracket and INITAI ERROR too much restart the instrument dust Too intensive No paper or paper is installed Install or reinstall the circumstance light incorrectly paper correctly 21 ADD of ball column The PRINT function is off in Open the PRINT and prism go beyond the menu function in the menu No paper is out when Paper run our or not install Install the paper again press the print key Printer is not open Restart the printer Mark on lens is not Print oil is dry Add oil clear or invisible LM280 Series coke meter calibration data that In view of the use of this product in the process of measuring data error problem a special new features calibration measurements This feature is based on measurement of national production house vertex power of the lens in the standard spherical 0 to 20D in lens as the standard for this product data calibration operation Note This product is calibrated before the factory to see the machine code code to the factory V at the beginning of the machine that has the calibration mon atone ke ale Important In the calibration the machine should be shut down under the
11. ning Don t plug excessive pin into one socket otherwise fire will be caused D Cautions After Use N Warning Please turn off the power supply when finished and put on the dust proof cover If power is on for over long time the fire may be caused because of overheat The dust may influence the Test Step if exposed over long time without cover Please pull out the power line against fire if the instrument 1s free for long time E Maintain Cautions A N Warning When adding ink please pull out the ink box lightly and put it flatly on the table lest the print center hurt your fingers Hints If your instrument is in exception and need to open for repair please contact with our agent We will be derelict of duty if it open by yourself Please do mind not to scratch the surface protect lens under the base The nick will reduce the Step and reliability of Test F Contingency Cautions A N Warning In case of LCD screen destroyed please smash it into fragments and clear off the Liquid Crystal with iso propyl alcohol and burn them off When contact the Liquid Crystal left please water off as soon as possible Chapter 2 Label Instruction To guarantee safe operation this instrument is with a label on the back Please use the power supply according to the instruction and replace fuse A Signs on the instrument Read carefully before use 0 Signs on off of power supply
12. nstrument is in use if it is free of test the screen can shut automatically c Clean the protecting lens regularly Take down the bracket first and clear the dust or oil with soft brush or lens paper Warning Don t scratch the protecting lens otherwise the precision will be reduced d Check the filter regularly Clear it lightly with soft brush or lens paper to get rid of the deposited dust Warning Don t scratch the filter e Add printer oil lens bracket when the sign is dim the printer oil should be added Draw out the ink 20 box to the table open the cover infuse the ink on the sponge When work is finished recover the box and get it back f Replace print paper Resume the paper according to the instruction Ne g Replace fuse shut down the power before replacement pull off the power line and take out the outlet under the power socket and replace it Pay Caution to the fuse type the required voltage and current h Surface clear Wipe the surface with soft and dry rag If the oil is heavy the neutral wash can be used with the rag Then dry it with cloth Warning organic solvent and gas are forbidden C General faults treatment General faults of LM 280 AUTO LENSMETER can be treated as follows Power indicator lamp Fuse broken Replace fuse doesn t flash Display is dim Lightness is too low Adjust the lightness Display is blurry Adjust the contrast Display disapp
13. osit Cautions Hints Don t locate the instrument near the poisonous erosive liquid and gas It is not permitted to expose the instrument under the sunlight and keep proper temperature and humidity Move Cautions TAS Warning Pulling the instrument lines and cables forcibly is forbidden otherwise instrument damage and personal harm may happen Don t move the whole instrument by catching the framework the permissive method is to support the base with hands in the back when moved otherwise it may cause man hurt or instrument damage C Installation Cautions Warning Don t locate the instrument near wet place If water enters it will cause electric shock and instrument faults Please install the instrument firm and flatly Body harm and instrument damage will happen because of instrument fall when improperly fixed Hints Don t locate the instrument under the sunlight or use it beside the lamp The surface such as mirror glass show case or polished table which reflect the light intensively is not suitable to fix the instrument otherwise the instrument may work improperly Don t use the instrument in the place exposed in the wind of the fans and air conditioner otherwise dust will enter into the base and the Step will be influenced Don t use the instrument under the circumstances of web heat and dust They will be bad for the instrument Connection Cautions War
14. r right lens Press the left lens key or right then L appears on the top of left side or R on the top of right side of Test Screen If it is not requested to identify left and right lens then S will appear on the right top of the Screen B Put the lens with eyeglass framework 1 ensure the lens left or right as the same way 2 put lens put the lens on the bracket with the convexity of the lens upward and the top of the framework towards the operator 3 adjust lens baffle make the baffle close to bottom of the framework by moving the baffle handle 4 Fix lens press the lens by cushion framework Attention the state will be kept when the instrument be reopened after Screen check and option C Check lens Make options of Step prism auto memory before measure lens The Step of 0 01D 0 12D 0 25D represents different resolving capacity Four options of prism represent respectively as follows Close not display aa Cartesian Coordinates P B ceeees Polar Coordinates Three items of auto memory option will be explain later A Check single beam lens Move lens and when the lens is close to the drone the 0 type drone will be show on the display When optical center is parallel with drone the horizontal line will become longer and the cursor will display the hint MARKING OK At the same time the sound beep will be heard and all parameters checked will be displayed and the
15. record the measured parameter of far sighted part 4 Press ADD function key as displayed on Fig 11 5 Draw the lens outward and move properly to make the myopic part on the center of the bracket Fig 12 the result of ADD will be showed on the displayed Fig 13 6 Repress the memory key to save the data MARKING OK MEH 5 cn fe ZEE Fig 8 installation of the far sighted Fig 9 the display after the ADD part for double beam lens key is pressed for double beam lens MAREKEING OR Zer Fig 10 installation of the myopic part for double beam lens Fig 11 the display of measure results for double beam lens 15 mark of far sighted Fig 12 the mark of progressive part multi focus lens mark of horizotal mark of myopic datum line part ked D Check the uncut progressive multi focus lens Both of the far sighted and myopic parts of uncut progressive multi focus lens are marked Fig 12 Measure the parts according to the marks 1 Check by the Test Screen a press ADD key to enter into Progessive Screen Fig 13 b Put the convexity upward and myopic parts towards inside keep the datum line horizontal and put the lens on the bracket then fix it Make the far sighted optical center focused on the optical enter of the instrument record and save the value If the hint voice items of the automatic options are selected then instrument will emit beep when far sighted optical center focus the
16. single beam lens B Checking lens with framework C Measuring two or three beams lens D Checking the progressive multi focus lens E Checking progressive lens with framework F Checking for high refraction ratio lens Chapter 4 Other Instructions A Revise B Maintenance C General faults treatment Chapter 1 Safety Measures and Cautions The safety contents are defined as different signs in these instructions as follows AN Danger indicate the emergent situations if not avoid death or grievous harm will happen AN Warning indicate the potential dangerous situations 1f not avoid death or grievous harm may happen AN Caution indicate the potential dangerous situations if not avoid light harm or farther harm may happen or the property of instrument may be influenced A Operation Cautions Caution Not open and touch the inside without permission otherwise electric shock or instrument exception will happen Please apply the stated power supply voltage The voltage can t be too low or high otherwise apparatus can not run normally even damage the instrument and cause to electric shock Power supply lines under the instrument is not permitted otherwise the surface layer of the line will be damaged and the followed accident will be caused short circuit fire and electric Shock If the metal core of the Power supply line is exposed it must be changed in order to avoid electric shock and fire B Dep
17. ted part is in the scope close to the framework center Do the same way c Measure parameters of myopic part Move the lens outward by handle and baffle Move the framework between left and right along the direction near the framework center and myopic part optical center to look for the optical center of myopic part The optical center of myopic part may be not able to cross with the mark center of lens so the max value should be recorded and then press the memory key F Check for high refraction ratio lens When high refraction ratio lens is measured please select ABBE value from the menu which is correspondent to value of the lens Then enter into the Screen to measure The operation is finished the displayed parameters have been made some compensation for ABBE values 1 Test of eyeglass optical center a Select the memorized from the auto memory menu return to the Test Screen press the right or left eyeglass lens key b Make the eyeglass framework face to the operator and convexity upward put the nose bridge block lock into the concave position adjust the lens baffle make the framework bottom against the baffle and put the right or left lens on the bracket c Make the framework always close to the baffle through nose bridge block when move left to right forward or back by parallel When the optical centers of lens and instrument in the superposition the hint sound beep emits The screen display the
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