satellite tracer model lt 910 - shamirlens.co.ukiii: during use after use caution • hold the base...

SATELLITE TRACER

ModelModel Lt 910Lt 910

OPERATOR’S MANUALOPERATOR’S MANUAL

NIDEK CO., LTD. : 34-14, Maehama, Hiroishi-cho, Gamagori, Aichi 443-0038, Japan(Manufacturer) Telephone: +81-533-67-6611

Facsimile: +81-533-67-6610NIDEK CO., LTD : 3F Sumitomo Fudosan Hongo Bldg., 3-22-5, Hongo,(Tokyo Office) Bunkyo-Ku, Tokyo 113-0033, Japan

Telephone: +81-3-5844-2641Facsimile: +81-3-5844-2642

NIDEK INCORPORATED : 47651 Westinghouse Drive, Fremont, California 94539, U. S. A.(United States Agent) Telephone: +1-510-226-5700

Facsimile: +1-510-226-5750NIDEK S.A. : Europarc 13, rue Auguste Perret, 94042 Créteil, France(EU Authorized Representative) Telephone: +33-1-49 80 97 97

Facsimile: +33-1-49 80 32 08

March 201041971-P972B

Printed in Japan

Original instructions

I

:

Use this instrument properly and safely.

Safety precautions

BEFORE USE, READ THIS MANUAL.

This Operator's Manual contains information necessary for the operation of the NIDEKSATELLITE TRACER Model Lt 910.

This manual includes operating procedures, safety precautions, specifications, andinformation about accessories and maintenance. This manual is necessary for properuse. Especially, the safety precautions and operating procedures must be thoroughlyunderstood prior to the operation of the instrument.

Keep this manual handy for reference.

If you encounter any problems or have questions about the instrument, please contactNIDEK or your authorized distributor.

In this manual, a signal word is used to designate a degree or level of safety alerting. The defi-nition is as follows.

CAUTION • Indicates a potentially hazardous situation which, if not avoided, might result in minor ormoderate injury or property damage accident.

Even situations that are labeled CAUTION might result in serious injury under certain con-ditions. Safety must be followed strictly at all times.

II

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Use precautions

Before Use

CAUTION • Do not use the instrument for other than the intended purpose.NIDEK is not responsible for accidents or malfunctions caused by careless use.

• Never disassemble nor touch the inside of the instrument.This may result in electric shock or malfunction.

• Install the instrument in an environment that meets the following conditions. Thefollowing conditions must be maintained during use.

Use conditionsTemperature: 5 to 40ºC (41 to 104ºF)Humidity: Relative humidity must not exceed 50% at a maximum temperature of40ºCPressure: 700 to 1060 hPaInstallation place: InteriorA place with low dustA place free of vibration and impact

• Avoid storing the instrument where it is exposed to rain or water, or poisonousgas or liquid is present.

Corrosion or malfunction of the instrument may occur.

• Install the instrument in a location with an adequate operating area in front of theinstrument as illustrated on page V

• Be sure to use a wall outlet which meets the power specification requirements.If the line voltage is too high or too low, the instrument may not perform properly.Malfunction or fire may occur.

• Connect the power plug to a ground outlet. Or connect a grounding wire to aground terminal.

Electric shock or fire may occur in the event of malfunction or power leakage.

• Completely insert the power plug into the outlet as far as the prongs will go.Fire may occur if the instrument is used with a loose connection.

• Do not place heavy objects on the power cord.The damaged power cord may cause fire or electric shock.

• Do not use the power cord other than supplied. Also do not connect the suppliedcord to any other instrument.

Malfunction or fire may result.

• Before connecting the cable, turn off the power switch and disconnect the powercord from an outlet.

Malfunction of the instrument may result.

III

:

During Use

After Use

CAUTION • Hold the base with both hands when carrying the instrument to another location.Accidental dropping of the instrument may cause damage to the instrument and/orcause bodily injury.

CAUTION • Connect the cable to the RS-232C connector securely, maintaining the correctorientation of the cable connector.

Data transmission is not performed properly.

• In the event of smoke or strange odors, immediately turn off the instrument anddisconnect the power plug from the outlet. After you are sure that the smoke hasstopped, then contact NIDEK or your authorized distributor.

Usage of the instrument under such abnormal conditions may cause fire or electricshock. In case of fire, use a dry chemical (ABC) extinguisher to extinguish the fire.

• Immediately replace the power cord if the internal wires are exposed, theinstrument turns on or off when the power cord is moved, or the cord and/or plugare too hot to be held with hands.

This may result in electric shock or fire.

• Be sure not to apply too much pressure on the stylus of the tracing unit.The stylus is easy to bend or break.

CAUTION • Turn off the power switch and put the dust cover on when the instrument is not inuse.

If dust settles, it may affect the measurement accuracy or result malfunction.

• Do not yank the power cord to disconnect it from a wall outlet but hold the plug.This can damage the metal core of the cord and may result in fire, short circuit orelectric shock.

• Occasionally clean the prongs of the power plug with a dry cloth.If dust settles between the prongs, the dust will collect moisture, and short circuit orfire may occur.

• If the instrument will not be used for a long time, disconnect the power cord fromthe wall outlet.

Fire may occur.

IV

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Maintenance and Check

CAUTION • Maintain the surrounding temperature and humidity at the following ranges duringtransport and storage of the instrument.

Environmental conditionsTemperature: -25 to 70°C (-13 to 158 ºF)Humidity: 10 - 100% (Non-condensing)A place with low dustA place not exposed to direct sunlight

• To transport the instrument, use the special packing materials to protect theinstrument from shock or impact.

Excessive vibration or impact to the instrument may cause malfunction.

CAUTION • Be sure to perform check before use and after use. It is recommended to haveregular checks every two years.

Regular checks must be performed by qualified personnel. Ask NIDEK or yourauthorized distributor for details.

• When performing maintenance work, secure a sufficient maintenance space. (seepage V).

Maintenance work in an insufficient space may result in injury.

• Use the specified fuses to replace the old ones.If not, fire may occur.

• Before fuse replacement, turn off the instrument and disconnecting the powercord from the wall outlet.

Electric shock may result.

• Never use organic solvents such as a paint thinner to clean the exterior of theinstrument.

It may ruin the surface of the instrument.

V

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[Operating area and maintenance work area]

Disposal

CAUTION • Follow the local ordinances and recycling regulations regarding disposal orrecycling of the components.

It is recommended to commission the disposal to a designated industrial waste dis-posal contractor.

• When disposing of packing materials, sort them by material and follow localordinances and recycling regulations.

Table of Contents

VII

1. BEFORE USE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.1 Outline of the instrument . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11.2 Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21.3 Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41.4 Checking Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51.5 Before First Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61.6 Tracing Unit Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81.7 Storing the Pattern Setting Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

2. OPERATION PROCEDURES . . . . . . . . . . . . . . . . . . . . . . 112.1 Operation Flow. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .112.2 Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .122.3 Tracing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

2.3.1 Frame tracing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .132.3.2 Pattern tracing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .172.3.3 Demo lens tracing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .182.3.4 Stopping tracing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .212.3.5 After use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

2.4 Daily Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .232.4.1 Check before use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .232.4.2 Check after use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

3. MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253.1 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .253.2 Replacing Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .263.3 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .273.4 List of Replacement Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

4. SPECIFICATIONS AND ACCESSORIES. . . . . . . . . . . . . 294.1 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .294.2 Standard Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

4.2.1 Standard configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .314.2.2 Optional accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

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VIII

5. INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

1

1

1. BEFORE USE1.1 Outline of the instrument

The NIDEK SATELLITE TRACER Model Lt 910 is a frame tracer which measures the shapes ofglasses. It traces the frames in three dimensions to measure the three-dimensional lens circumfer-ence. In addition, measurement of patterns or demo lenses is available.The instrument is very easy to use simply by setting frames or such and pressing a switch.This instrument can be connected to various kinds of lens edging equipment in a laboratory to com-prise a lens processing system.*1

*1. The Lt 910 interface specifications must be compatible with the connecting systems.• Standard specifications → Connecting to a personal computer or NIDEK’s grinding system.• LAB specifications → Connecting to a LAB system.• NAVIS-EC specifications → Connecting to a NAVIS-EC.

2

BEFORE USE: Configuration

1.2 Configuration

Top view

Rear view

1. Lower slider

2. Upper slider

Power switch

4. Stylus

3. Rim clips

3. Rim clips

5. Pattern setting unit

6.7.8.

support

10. RS-232C connector (Only for STD specifications)

Fuse holder

9. Inlet

12. Barcode connector10. RS-232C connector11. Computer connector (Only for STD and NAVIS-EC specifications) (Except for STD specifications)

3

BEFORE USE: Configuration

1

1. Lower slider2. Upper slider

Frames are fastened between these sliders.

3. Rim clipsHold the rims of frames.

Each upper and lower slider has two clips.

4. StylusTraces a frame groove to measure its frame shape.

5. Pattern setting unit supportMounts the pattern setting unit set with a pattern or demo lens.

6.

Starts right-eye tracing.

7.

Starts both-eye tracing.

8.

Starts left-eye tracing.

9. InletThis is where the power cord is connected.

10. RS-232C connectorAs an external tracer, this connector is used for connecting the SNT/LNT models of the Le 1000, NT modelof the Lex 1000, and Ice 900.

11. Computer connectorThis is a communication connector to connect the server computer. (Only for STD and NAVIS-ECspecifications)

12. Barcode connectorThis is where the barcode scanner (or numeric keypad) is connected. (Except for STD specifications)

4

BEFORE USE: Labels

1.3 Labels

Cautionary labels are provided on the Lt 910. If labels are curling up or characters fading and becom-ing barely legible, contact NIDEK or your authorized distributor.

Indicates that caution must be taken. Refer to the operator's manual before use.

Indicates a dangerous part to which a high voltage is applied.

The state of the power switch. If the symbol side of the switch is flipped down, the power is not supplied to the tracer.

The state of the power switch. If the symbol side of the switch is flipped down, the power is supplied to the tracer.

Indicates that the tracer must be supplied only with alternating current.

Indicates the fuse rating.

[Top view]

5

BEFORE USE: Checking Contents

1

1.4 Checking Contents

Unpack the contents from the shipping carton and check them.

The following is included in the standard configuration.

or

or

[Front view]

[Rear view]

or

or

• Main body • RS-232C cable • Power cord • Holder for pattern setting unit • Pattern setting unit • Dust cover • Standard frame • Spare fuse (2 units) • Standard pattern • Operator’s manual (this book)

6

BEFORE USE: Before First Use

1.5 Before First Use

Place the tracer on a stable table and connect the power cord.

1 Place the main body to a stable table.

2 Remove the cushion retaining the upper andlower slider.

3 Remove the tape and spacer retaining theinside of the tracing unit.

4 Connect the power code and RS-232C cable to the rear of the tracer.

Fix the RS-232C cable by tightening theknob attached to the connector.

5 Connect another end of the RS-232C cableto the instrument to be connected.

6 Make sure that the power switch is turned off( ) and plug the power cord in the wall outlet.

CAUTION • The electrical outlet must have a grounding terminal.Electric shock or fire may occur in the event of malfunction or power leakage.

Cushion

Tape Spacer

RS-232C-cable Power code

7

BEFORE USE: Before First Use

1

7 Turn the power switch on ( ).The Lt 910 is initialized.

8 Calibrate the tracing unit.See “1.6 Tracing Unit Calibration” (page 8)

This is all you have to do before use.

8

BEFORE USE: Tracing Unit Calibration

1.6 Tracing Unit Calibration

Calibrate the tracer using the provided standard frames and standard pattern.

Standard frames . . . . . . . Frame tracing calibration with the stylus

Standard pattern . . . . . . . Pattern tracing calibration with the pattern tracing pinCalibration is performed by service personnel at the time of installation. It is recommended to calibrate the tracing unit for high tracing accuracy before use. In addition, per-form calibration also when an error occurs in circumference.

1 Turn on the power.

2 After initialization, set the instrument to calibration mode.1) Press while pressing .

2) Release .

3) Release .

A beep sounds and the indicator of blinks.

3 Set the provided standard frames ( 45).Set the standard frames, with the side inscribedwith the number facing up. Fit the rim clips into thegrooves of the frames.

4 Press .Automatic calibration (frame) starts.

After several traces, calibration finishes. A beepsounds, the instrument exits from calibration mode,and the standard frames are released.

• To avoid calibration with frames other than standard one, when the circumference exceedsthe correction value of ±1 mm, the indicator of blinks and calibration is not performedautomatically. In such a case, take the following actions.

Confirm that the provided standard frames ( 45) are used and press .

→Calibration becomes enabled. Go to Step 5.

When other frames are used, press or .

→Calibration becomes disabled. Perform calibration with the standard frames again

Standard frames ( 45)

9

BEFORE USE: Tracing Unit Calibration

1

5 Set the instrument to calibration mode.1) Press while pressing .

2) Release .

3) Release .

A beep sounds and the indicator of blinks.

6 Remove the standard frames and set the providedstandard pattern.

Set the standard pattern, with the side inscribed Afacing up.

See Steps 1 to 2 of “2.3.2 Pattern tracing”.

7 Press .Automatic calibration (pattern) starts.

After calibration is completed, a beep sounds andthe instrument exits from calibration mode andreturns to normal mode.

8 Remove the standard pattern.

10

BEFORE USE: Storing the Pattern Setting Unit

1.7 Storing the Pattern Setting Unit

Store the pattern setting unit free from loss or dam-age when not in use. It is recommended to attachthe provided holder for the pattern setting unit toeither side cover of the Lt 910 and to set the patternsetting unit to the holder.

Attaching the holder for the pattern setting unit

The holder can be attached to both the left and rightsides. The procedure for attaching it to the right sideis described here.

1 Unscrew two countersunk head screws inthe right side of the bottom of the Lt 910.

2 Attach the provided holder for the patternsetting unit with the screws unscrewed inStep 1.

Pattern setting unitHolder for the pattern setting unit

Countersunkhead screws

Holder for pat-tern setting unit

11

2

2. OPERATION PROCEDURESIn this section, the tracing procedure is mainly explained.For connecting systems and transferring data, see the manual of the connecting device or serversoftware.

2.1 Operation Flow

2.3.1 Frame tracing (page 13)

2.3.2 Pattern tracing (page 17)

2.3.3 Demo lens tracing (page 18)

2.3.4 Stopping tracing (page 21)

Power ON

2.3 Tracing (page 13)

Transferring data

Power OFF

12

OPERATION PROCEDURES: Preparation

2.2 Preparation

1 Connect the power cord to the inlet.

2 Make sure that the power switch is turned off ( ) and connect the power cord to a walloutlet.

3 Make sure that the power of the equipment connected to the Lt 910 with RS-232C cableis turned on.

4 Turn the power switch on ( ).

5 Calibrate the tracing unit.See “1.6 Tracing Unit Calibration” (page 8).

The Lt 910 is now ready for use.

CAUTION • Do not turn the power on when the frame is set on the tracer.The stylus may hit the frame while initializing and cause deformation or breakageof the frame.

• Fully insert the main power plug into the outlet.Fire may occur in the instrument is used with a loose connection.

• Be sure to use a wall outlet which meets the power specification requirements.If the line voltage is too high or too low, the instrument may not give full perfor-mance. Malfunction or fire may result.

• Do not overload the electrical outlet.A multi-outlet supplying power to too many devices may become overheated andcause fire.

• Be sure to use an outlet equipped with a ground terminal.Electric shock or a fire may occur in the event of malfunction or power leakage.

13

OPERATION PROCEDURES: Tracing

2

2.3 Tracing

Tracing measures the shapes of frames or patterns.There are the following types of tracing. Select the desired one.

2.3.1 Frame tracing

Both-eye tracing

This is the procedure to measure the frame shapes for both eyes as well as the FPD (frame pupildistance).

1 Set frames into the tracing unit.1) Set the top of the frames.

Pull forward the lower slider and fastenthe frame top between the rim clips onthe upper slider.

2) Set the bottom of the frames.

Slowly release the lower slider, placingthe frame bottom between the rim clipson the lower slider.

3) Move the frames left or right to bringthem to the approximate center of thetracer.

Frame tracing (Both eyes) Traces the both eyes of general frames.

Frame tracing (Single eye) Traces the left- or right-eye of a general frame.

Semiauto tracing When the stylus is not automatically set in the groove at thestart of frame tracing.

Goggle type frame tracingWhen the stylus comes off the groove of the sharply warpedframe during tracing.Hold by hand the frame not being traced.

Pattern tracing Traces the patterns of two-point or nylor frames etc.

Demo lens tracing Traces mounted lenses in the same manner as the patterntracing.

• For rims with low stiffness such as thin rim frames, only perform demo lens tracing.Distortion may occur and correct measurement cannot be obtained from rims with low stiffness.

Lower slider

Rim clips

14


2 Start tracing both frames.Press .

Tracing is complete when the frames are released.

3 Pull the lower slider forward to remove the frames.

Single-eye tracing

This is the procedure to trace the frame for either eye.

1 Set frames into the tracing unit.See Step1 of “ Both-eye tracing” (page 13).

2 Press either or .For tracing the left-eye frame → Press .

For tracing the right-eye frame → Press .

• When the frame is set in condition that the stylus is located in the center, the bridge maycontact the stylus depending on the frame shape.

In this case, press or to move the stylus to right or left before frame setting. However,pressing or starts the pattern tracing when the upper and lower sliders are opened totheir limits. Therefore, confirm that the upper and lower sliders are closed beforehand.

• The FPD (frame pupil distance) cannot be measured in single-eye tracing.

Upper slider

Stylus

Lower slider

Bridge

Stylus

When the stylus is located inthe center.

When the bridge contacts thestylus.

15


2

Semiauto tracing

This is the procedure to fit the stylus into the groove by hand before tracing the frame which stylus isnot automatically set in the groove. This is for frames, especially plastic ones, whose grooves are notin the middle of the edges.

1 Set frames into the tracing unit.See Step1 of “ Both-eye tracing” (page 13).

2 Press for more than three seconds.The stylus moves and pauses in the tracing start position.

In single-eye tracing, press or for three seconds instead of .

3 Fit the stylus into the groove by hand.

4 Start tracing.Press .

After tracing one frame, the stylus moves to another frame and pauses in the tracing startposition.

5 Trace the other frame in the same manner as Steps 3 and 4.

16


Goggle type frame tracing

When the frames are sharply warped, the stylus may come off the groove. In such a case, fasten onlythe one frame between the rim clips and perform single-eye tracing.This tracing is available in both left and right frames. The procedure for tracing the right frame isdescribed here.

1 Set the right frame in the tracing unit sothat the frame becomes level.

Do not fasten the left frame between therim clips.

Hold the left temple to maintain the rightframe level.

2 Start tracing.Press .

3 Remove the frames from the tracing unit.

• The rim clips fasten the right frame. However, do not release the left frame until tracing iscompleted.

When the frame moves, tracing is not performed accurately.

• The FPD (frame pupil distance) cannot be measured in goggle type frame tracing.

Side to be tracedMake the frame level.Fasten it between therim clips.

Side not to be tracedHold the frame by finger. Do not fasten it between therim clips.

17


2

2.3.2 Pattern tracingTraces the patterns of two-point frames etc.

1 Set a pattern onto the pattern setting unit.1) Set the pattern while pressing the white button on the pattern setting unit.

Push the pattern as far as it will go. The pattern is attached as follows:

2) Release the white button to lock the pattern.

2 Set the pattern setting unit to the tracing unit.Set the pattern setting unit to the tracing unit.

Pull the lower slider forward and set the pat-tern setting unit onto the pattern setting unitsupport.

Align the two pins of the pattern setting unit tothe circular holes on the pattern setting unitsupport.

The pattern setting unit is fastened to the pat-tern setting unit support by magnet.

3 Press either or .For tracing the left-eye pattern → Press

.

For tracing the right-eye pattern → Press.

The tracing pin comes out and then tracingstarts.

Nasal side

Left-eye pattern

Temporal side

Right-eye pattern

Nasal side

White button

Pattern

Pattern setting unit


Pattern tracing pin

18


4 Remove the pattern setting unit after tracing.When tracing is complete, the tracing pin is automatically stored.

Lifting the left side first makes removing the pattern setting unit easier.

2.3.3 Demo lens tracingTraces the lens that has already been processed and mounted into the frame in the same manner asthe pattern tracing.

1 Block the convex surface of a demo lens with a pliable cup.1) Mark the approximate center of the demo

lens with a lensmeter.At this time, the frame must be contacted withthe lens table while the demo lens is mountedin the frame.

2) Stick a double-sided adhesive pad on thelens cup.

3) Block the convex surface of the demo lenswith the lens cup using a centering device.Block the lens so that the markings on thedemo lens are aligned to the groove orien-tation of the lens cup.

• The FPD (frame pupil distance) cannot be measured in pattern tracing.

Lens table

19


2

2 Set the lens cup to the pattern setting unit.Set the lens cup while pressing the white button of the pattern setting unit.

3 Set the pattern setting unit to the tracing unit.Pull the lower slider forward and set the pat-tern setting unit onto the pattern setting unitsupport. Align the two pins of the pattern set-ting unit to the circular holes on the patternsetting unit support.

The pattern setting unit is fastened to thepattern setting unit support by magnet.

4 Press either or .For tracing the left-eye lens → Press .

For tracing the right-eye lens → Press .

The tracing pin comes out and then tracing starts.

5 Remove the pattern setting unit after tracing.When tracing is complete, the tracing pin is automatically stored.

Lifting the left side first makes removing the pattern setting unit easier.

Nasal side

White button


Temporal sideTemporal side

For left-eye lenses For right-eye lenses

Temporal side

• Note that the switch to be pressed is the opposite of that pressed in pattern tracing.


• The FPD (frame pupil distance) cannot be measured in demo lens tracing.

20


[Precautions in demo lens tracing]Demo lens is traced with its convex surface up different from frame or pattern tracing. Therefore, takecare the relationship between right and left of the demo lenses and trace switches ( / ).

Example 1: When right frame shape is traced

Set the left lens with its convex surface adsorbed to the tracer and press to start trac-ing.

Example 2: When left frame shape is traced

When there is no left lens, perform tracing with right lens.

Set the right lens with its convex surface adsorbed to the tracer and press to start trac-ing.

Left lens

Left lensconvex surface

Right lens con-vex surface

Right lens

21


2

2.3.4 Stopping tracingFollow the following procedures to stop tracing.

Stopping frame tracing

1 Press .The stylus moves to the original position and frames are released.

Stopping pattern or demo lens tracing

1 Press .

2 Remove the pattern setting unit.The pattern tracing pin is stored.

22


2.3.5 After use

1 Turn the power off while the Lt 910 does not trace and communicate.Turn OFF ( ) the power switch.

2 Perform check after use. See “2.4.2 Check after use” (page 23).

3 Put the provided dust cover on the instrument.

CAUTION• Do not turn the power off during tracing.Failure of the tracer may result.

• Turn off the power switch and put the dust cover on when the instrument is not inuse.

If dust settles, it may affect the measurement accuracy or result malfunction.

CAUTION • If the instrument will not be used for a long time, disconnect the power cord fromthe wall outlet.

If dust settles between the plugs, the dust will correct moisture, and short circuit ordire may occur.

23

OPERATION PROCEDURES: Daily Checks

2

2.4 Daily Checks

Check the following before and after every use each day.It is recommended that a checklist is prepared and the check results are recorded.

2.4.1 Check before use1) Are there any apparent deformations or dirt which might interfere with proper operation?

Especially confirm that there are no foreign substances or dirt on the tracing unit.

2) It is recommended to calibrate the tracing unit.

See “1.6 Tracing Unit Calibration” (page 8) for calibration.

2.4.2 Check after use1) Is the power turned off?

2) Is the Lt 910 dirty or damaged?

3) Are the pattern setting unit, standard pattern, and standard frame accounted for and freefrom damage?

4) Is the dust cover on?

24

OPERATION PROCEDURES: Daily Checks

25

3

3. MAINTENANCE3.1 Troubleshooting

In the event that the Lt 910 does not work correctly, correct the problem according to the followingtable before contacting NIDEK or your authorized distributor.

If the symptom cannot be corrected with the above actions, contact NIDEK or your authorized distributor.

Symptom Actions

The Lt 910 does not work at all.

• Make sure that the power cord is properly connected. • Make sure that the voltage applied to the outlet is within the range specified. • Check the fuses. If the fuses are blown, replace them with new ones.

See "3.2 Replacing Fuses" (page 26) for fuse replacement

Circumference of the traced outline has a margin of error.

• Perform calibration.See "1.6 Tracing Unit Calibration" (page 8) for calibration.

The communication is disabled. • Confirm that the RS-232C cable is properly connected.

26

MAINTENANCE: Replacing Fuses

3.2 Replacing Fuses

If the instrument is not started even though the power switch is turned on, the fuses may be blown.Replace the fuses with spare ones.

1 Turn OFF ( ) the power switch.

2 Disconnect the power cord from the wall outlet.

3 Disconnect the power cord from the inlet.

4 Remove the fuse holder under the inlet.Pull out the fuse holder while pushing thelever.

5 Remove the used fuses from the holder andreplace them with new ones.

Fuse rating: T 0.5 A 250 V

6 Put the fuse holder back into its original posi-tion.

CAUTION • Before fuse replacement, turn off the instrument and disconnecting the power cordfrom the wall outlet.

Otherwise, electric shock may result.

• Use the specified fuses only. (T 0.5 A 250 V)Using fuses other than specified may result in fire.

Lever

Fuse holder

Fuse holder

Fuse

27

MAINTENANCE: Cleaning

3

3.3 Cleaning

When the cover or panel of the tracer becomes dirty, clean it with a soft cloth. For stubborn stains,soak the cloth in a neutral detergent, wring well, and wipe. Finally dry with a soft, dry cloth.

3.4 List of Replacement Parts

* After replacing consumables, restock them.

CAUTION • Never use an organic solvent such as paint thinner.It may ruin the surface of the tracer.

• Never use a sponge or cloth soaked in water.The water may leak into the inside of the tracer and cause instrument failure.

Part name Part number Note

Fuse 804-02-02153 T 0.5 A 250 V 5 × 20 mm

28

MAINTENANCE: List of Replacement Parts

29

4

4. SPECIFICATIONS AND ACCESSORIES4.1 Specifications

Tracing unit

Other functions

• Tracing method Automatic 3-D binocular tracing

• Traceable size

Frame ø20 to ø88 mm (20 to 66 mm vertically)Frame width is within 150 mm.

Pattern ø24 to ø76 mm (14.5 to 66 mm vertically)

• FPD measurement Available

• Frame clamping Automatic one-touch clamping

• Setting of stylus Switchable between automatic and semiautomatic

• Measuring points 1000

• Measurement accuracy

Frame tracing ±0.05 mm (circumference error with 45 standard frame)

Pattern tracing ±0.1 mm (circumference error with 45 standard pattern)* Traced result after auto calibration

• Tracing time

Frame tracing 30 seconds or less (automatic both-eye tracing)

Pattern tracing 20 seconds or less

• Measurement item Lens shapeFPD (Frame pupillary distance)3-D circumference (2-D circumference at pattern tracing and demo lens tracing)Frame front warping angle (reference)Frame curve (reference)

• External communication

RC-232C Two ports built-in

PORT1 For connection with a PC or lens edger

PORT2 For connection with a barcode scanner

30

SPECIFICATIONS AND ACCESSORIES: Specifications

Dimensions, weight, etc.

Environmental conditions (in use)

Environmental conditions (in transport and storage)

• Dimensions 296 (W) × 290 (D) × 148 (H) mm* Optional accessories and protrusions not included

• Weight 8 kg (optional accessories not included)

• Power source AC 100-120/ 230 V, 50/60 Hz

• Power consumption 50 VA

• Temperature 5 to 40°C (41 to 104ºF)• Humidity Relative humidity must not exceed 50% at a maximum temperature of 40ºC• Pressure 700 to 1060 hPa

• Altitude 1000 m or less at sea level

• Installation place InteriorDust-free and smoke-free

• Temperature -25 to 70°C

• Humidity 10 to 100%

31

SPECIFICATIONS AND ACCESSORIES: Standard Configuration

4

4.2 Standard Configuration

4.2.1 Standard configuration

4.2.2 Optional accessories

• Pattern setting unit 1 unit

• Holder for pattern setting unit 1 unit

• Standard frame 1 unit

• Standard pattern 1 unit

• Power cord 1 unit

• RS-232C cable 1 unit

• Dust cover 1 unit

• Spare fuse 2 units

• Operator’s manual 1 unit

• Barcode scanner

• Numeric key pad

• RS-232C cable (5 m, 10 m, 15 m)

32

SPECIFICATIONS AND ACCESSORIES: Standard Configuration

33

5

5. INDEXB

Barcode scanner ••••••••••••••••••••••••••••••••••••••••••••••••• 3Both-eye tracing ••••••••••••••••••••••••••••••••••••••••••••••• 13

D

Demo lens tracing ••••••••••••••••••••••••••••••••••••••••••••• 18

F

Frame tracing ••••••••••••••••••••••••••••••••••••••••••••••••••• 13Fuse replacement ••••••••••••••••••••••••••••••••••••••••••••• 26

G

Goggle type frame tracing ••••••••••••••••••••••••••••••••••• 16

P

Pattern setting unit ••••••••••••••••••••••••••••••••••••••17, 19Pattern setting unit support ••••••••••••••••••••••••••••••••••••3Pattern tracing •••••••••••••••••••••••••••••••••••••••••••••••••• 17

S

Semiauto tracing ••••••••••••••••••••••••••••••••••••••••••••••• 15Single-eye tracing •••••••••••••••••••••••••••••••••••••••••••••• 14

T

Tracing unit calibration ••••••••••••••••••••••••••••••••••••••••••8

34

INDEX:

satellite tracer model lt 910 - shamirlens.co.ukiii: during use after use caution • hold the base...

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