SATELLITE TRACER Model LT-900 OPERATOR’S MANUAL

SATELLITE TRACER

Model LT-900

OPERATOR’S MANUAL

NIDEK CO., LTD. : 34-14, Maehama, Hiroishi-cho, Gamagori, Aichi 443-0038, Japan
(Manufacturer) Telephone: (0533) 67-6611
Facsimile: (0533) 67-6610
NIDEK CO., LTD
(Tokyo Office) : 6th Floor, Takahashi Bldg., No.2, 3-chome, Kanda-jinboucho
Chiyoda-ku, Tokyo 101-0051, Japan
NIDEK INCORPORATED Telephone: (03) 3288-0571
(United States Agent) Facsimile: (03) 3288-0570
Telex: 2226647 NIDEK J
NIDEK SOCIETE ANONYME
(Authorized Representative) : 47651 Westinghouse Drive, Fremont, California 94539, U. S. A.
Telephone: (510) 226-5700
Facsimile: (510) 226-5750

: Europarc 13, rue Auguste Perret, 94042 CRETEIL, France
Telephone: (01) 49 80 97 97
Facsimile: (01) 49 80 32 08
March 2006
41971-P902E
Printed in JAPAN

BEFORE USE OR MAINTENANCE, READ THIS MANUAL.

This Operator's Manual contains information necessary for the operation of the
NIDEK SATELLITE TRACER Model LT-900.
This manual provides operating procedures, cautions for safety, specifications, information on
accessories and maintenance. IEC standards are applied in this manual. For correct use, this
manual is needed. Especially, cautions for safety and operating procedures must be thoroughly
understood before using the instrument.
Keep this manual handy to verify use whenever necessary.

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

Table of Contents

§1 Page
INTRODUCTION ........................................................................................................ 1-1
1.1 Outline of the Product ................................................................................................. 1-1
1.2 Symbol Information .................................................................................................... 1-1

§2 SAFETY ......................................................................................................................... 2-1
2.1 Cautions in Use .......................................................................................................... 2-1
2.2 In Storage .................................................................................................................. 2-2
2.3 In Transport ............................................................................................................... 2-2
2.4Installation .................................................................................................................. 2-2
2.5 In Wiring .................................................................................................................... 2-3
2.6 After Use ................................................................................................................... 2-3
2.7 Maintenance and Check ............................................................................................. 2-4
2.8 Disposal ..................................................................................................................... 2-5
2.9 Labels ........................................................................................................................ 2-5

§3 UNPACKING ................................................................................................................ 3-1
§4 CONFIGURATION ...................................................................................................... 4-1
§5 OPERATION PROCEDURES ..................................................................................... 5-1

5.1 Operation Flow .......................................................................................................... 5-1
5.2 Power-on ................................................................................................................... 5-2
5.3 Tracings ..................................................................................................................... 5-3

5.3.1 Tracing frames ................................................................................................... 5-3
5.3.1.1 Tracing both rims ................................................................................... 5-3
5.3.1.2 Tracing a single rim ................................................................................ 5-4
5.3.1.3 Semi auto tracing ................................................................................... 5-4
5.3.1.4 Tracing goggle type frames .................................................................... 5-5

5.3.2 Tracing patterns................................................................................................. 5-6
5.3.3 Tracing dummy lenses ........................................................................................ 5-7
5.3.4 Stopping tracing ................................................................................................ 5-9

5.3.4.1 Stopping frame tracing ........................................................................... 5-9
5.3.4.2 Stopping pattern or dummy lens tracing .................................................. 5-9
5.4 Treatment after Daily Use ......................................................................................... 5-10
5.5 Daily Checks ............................................................................................................ 5-11
5.5.1 Daily checks before use ................................................................................... 5-11
5.5.2 Daily checks after use ...................................................................................... 5-11
5.6 Keeping the Pattern Setting Unit in Storage ............................................................... 5-12

§6 Page
MAINTENANCE .......................................................................................................... 6-1
6.1 Calibration ................................................................................................................. 6-1
6.2 Replacing Fuses ......................................................................................................... 6-2
6.3 Cleaning Exterior ........................................................................................................ 6-3
6.4 List of Consumable Articles ........................................................................................ 6-3

§7 SPECIFICATIONS ....................................................................................................... 7-1
§8 ACCESSORIES ............................................................................................................ 8-1

8.1 Standard Specifications .............................................................................................. 8-1
8.2 LAB Specifications ..................................................................................................... 8-1
8.3 DVI Specifications ..................................................................................................... 8-1

§9 CHECK LIST ................................................................................................................ 9-1

INDEX ..................................................................................................................................... A-1



§1 INTRODUCTION

1.1 Outline of the Product

NIDEK SATELLITE TRACER Model LT-900 is a frame tracer which measures the shape of eyeglass
rims. Ittracestherimofframesinthreedimensionsandmeasuresdimensionalcircumference. Moreover,
measurement of patterns and dummy lenses is available.
The instrument is very easy to use simply by setting frames and pressing the switch.
This instrument can be connected to various kinds of lens edging equipment such as in a laboratory
to comprise a lens processing system.

1.2 Symbol Information

Indicates that caution should be taken. It is necessary to refer to the Operator’s Manual
before using the instrument.
Indicates that the power is OFF.
Indicates the fuse rating.
Indicates that the instrument must be supplied only with alternating current.
Indicates a dangerous part to which a high voltage is applied.
Indicates the date of manufacture.
Indicates the manufacturer.
Indicates that this product shall be disposed of in a separate collection of electrical and electronic
equipment in EU.

*1 The LT-900 interface specifications must be compatible with the connecting systems.
• Standard specifications ⇒ Connecting to a personal computer or NIDEK’s grinding system
• DVI specifications ⇒ Connecting to a personal computer
• LAB specifications ⇒ Connecting to a LAB system

§2 SAFETY

Signal Words are used to designate a degree or level of safety alerting. The definitions
are as follows.

CAUTION: Indicates a potentially hazardous situation which, if not avoided,
may result in minor or moderate injury or a property damage
accident.

Some items described in CAUTION, however, could cause a serious accident
depending on the situation. Due to their importance. Please follow the instructions
below.

2.1 Cautions in Use

CAUTION

• Never disassemble nor touch the internal structure.
An electric shock or a failure of the instrument may occur.

• Never yank the power cord to disconnect it from the wall outlet, but hold the plug.
This can damage the metal core of the cord and may result in a fire, a short circuit or an
electric shock.

• When the wire inside of the cable is exposed, the power turns ON or OFF by moving the
power cord, or the cord or plug becomes too hot to hold it, disconnect the power cord
from the wall outlet and contact your authorized distributor.
It may cause an electric shock or a fire.

• Do not crush or squeeze the power cord with heavy objects such as the instrument.
Damage to the cord may result in a fire or an electric shock.

• Be sure not to put stress on the stylus of the tracer.
The stylus is easy to bend or break.

• Every once in a while, clean the metal part of the power plug with a dry cloth.
If a thick layer of dust settles on the metal part, it will become damp, and a short circuit
or a fire may occur.

• In the event that the instrument gives out smoke or a strange smell, etc., turn OFF the
power and unplug the power cord. After the smoke is not coming out of the instrument
any more, contact your authorized distributor.
If the instrument which has this kind of abnormal condition, is used, a fire or an electric
shock may occur. In case of fire, use a powdery (ABC) extinguisher.

2-2

2.2 In Storage

CAUTION

• Do not store the instrument where it may get wet or where poisonous gas or liquid exists.

• Do not store the instrument in a place exposed to direct sunlight or where the temperature
and humidity are high.

2.3 In Transport

CAUTION

• Use the specified packing materials to avoid physical shock when transporting.
Excessive vibration or shock to the instrument may cause an instrument malfunction.

2.4 Installation

CAUTION

• Operate the instrument on a level and stable place without vibration and shock.
If it is not used under these conditions, the accuracy of measurement may be affected.

• Do not install the instrument where it is exposed to direct sunlight.

• Install the instrument in the following environmental conditions.

Use conditions Temperature: 5 - 40ºC

Humidity: Relative humidity does not exceed 50% at the

maximum temperature of 40ºC.

Pressure: 700 - 1060 hPa

• Install the instrument in an environment where pollutants such as corrosive gas, acid and
salt do not exist.
Corrosion or malfunction of the instrument may occur.

• Install the instrument where the operation area specified on p. 2-4 is provided.

• Never place the main body over the table top where a carpet is laid.
The instrument is provided with the cooling fan in its lower part. The carpet may hinder
cooling efficiency.

2-3

2.5 In Wiring

CAUTION

• Be sure to use a wall-outlet which meets the power specifications.
If the line voltage is too high or low, the instrument may not give full performance. A
malfunction or a fire also may occur.

• Plug the power cord correctly until its pins are fully inserted into the socket.
If the instrument is used with an insecure connection, a fire may occur.

• Do not put many loads on one electrical outlet.
Abnormal heat generation may occur at the outlet in conjunction with the other devices.

• Be sure to ground the instrument.
An electric shock or a fire may occur in the event of failure or electrical leakage.

• When connecting the RS-232C cable etc., be sure to securely tighten the screw of the
connector which has a fixing screw.

2.6 After Use

CAUTION

• If the instrument will not be used for a long time, unplug the power plug from the wall
outlet.
If a thick layer of dust settles on the pins of the plug, it will become damp, and a short
circuit or a fire may occur.

• Turn the power switch OFF and put the dust cover on when the instrument is not in use.
If dust settles, it may affect the measurement accuracy or cause a malfunction.

2-4

2.7 Maintenance and Check

CAUTION

• Be sure to perform the initial inspection before use and finishing inspection after use. It is
recommended to have an inspection every two years.
The inspection should be performed by a service person. Contact NIDEK or your
authorized distributor.

• Be sure to keep enough space (see below.) for maintenance.
Working in a tight place may cause an injury.

• Be sure to use the specified fuses (T 0.5 A 250 V) for replacement.
If not, a fire may occur.

• Replace the fuses after turning OFF the instrument and disconnecting the power cord.
If not, an electric shock may occur.

• Never use an organic solvent such as paint thinner to clean the exterior of the instrument.
This could damage the surface.

[Operation area/ Maintenance area]

Maintenance Approx.
area 500 mm

Approx. Approx.
500 mm 500 mm

Approx.
290 mm

Approx. Approx. Operation
500 mm 296 mm area

Approx.
1000 mm

2-5

2.8 Disposal

NOTE

• Follow local governing ordinances and recycling plans regarding disposal or recycling of
device components.

• When disposing of packing materials, sort them by material, and follow local governing
ordinances and recycling plans.

2.9 Labels

The following labels provide safety information about each part.
<Front view>

STD

or

LAB
or

DVI

<Rear view>

5#6'..+6'64#%'4

/1&'. .6
%100 8㨪
(4'3 *\

or 219'4 8#

/#'*#/#*+41+5*+%*1)#/#)14+ /&
#+%*+,#2#0

/#&'+0,#2#0

§3 UNPACKING

1. Check that the following accessories are included in the carton.

- Fuse - Pattern setting unit
- Standard frame - Standard pattern
- RS-232C cable - Power cord (with converter plug)
- Dust cover - Operator’s manual

2. Remove all packing materials from the tracer.

3. Place the tracer on a clean and level place where it will be used.

4. Carefully remove the foam insert from the frame tracing chamber.

5. Remove the packing tape from the tracing table, taking care not to damage the stylus.

§4 CONFIGURATION Rim clips

[Top view] Stylus
Rim clips
Power switch
Pattern setting unit
Upper slider support
Lower slider

[Rear view]

Inlet
Fuse holder

RS-232C connector RS-232C connector
(Only for STD specifications)
Barcode connector

Lower slider 4-2
Upper slider
Frames are set between these sliders. Inlet
This is where the power cord is connected.
Rim clips
The frame rims are held by the clips. RS-232C interface connector
As an external tracer, this connector is used
Each upper and lower slider has two clips. for connecting LE-7070 LAB specifications,
LE-7070SX LAB specifications, LE-
Stylus 9000DX/EX, and ICE-9000NT etc.
Measures a frame shape by tracing its bevel
groove. Barcode connector
This is where the barcode scanner (or numeric
Pattern setting unit support keypad) is connected.
The pattern setting unit with a set pattern or a (except for STD specifications)
dummy lens is set on this support.

Starts a single-tracing of the right rim.

Starts both-tracing of the right and left rims.

Starts a single-tracing of the left rim.

§5 OPERATION PROCEDURES

In this section, mainly the tracing method is explained.
For connecting systems and transferring data, see the manual of the connecting device or server
software.

5.1 Operation Flow

Power-on

5.3 Tracings

→ 5.3.1 Tracing frames (p. 5-3)
→ 5.3.1.1 Tracing both rims (p. 5-3)
→ 5.3.1.2 Tracing a single rim (p. 5-4)
→ 5.3.1.3 Semi auto tracing (p. 5-4)
→ 5.3.1.4 Tracing goggle type frames (p. 5-5)

→ 5.3.2 Tracing patterns (p. 5-6)
→ 5.3.3 Tracing dummy lenses (p. 5-7)
→ 5.3.4 Stopping tracing (p. 5-9)

→ 5.3.4.1 Stopping frame tracing (p. 5-9)
→ 5.3.4.2 Stopping pattern or dummy lens tracing (p. 5-9)

Transferring data

Power-off

5-2

5.2 Power-on

1. Check the connection of the interface cable (RS-232C cable).

2. Connect the power cord to the inlet.

3. Connect the plug of the power cord to the wall outlet.

CAUTION

• Prongs of the plug must be fully inserted into the outlet.
Incomplete connection may cause a fire.

• Be sure to use an outlet which meets the power specifications.
If the line voltage is too high or low, the instrument may not give full performance.
A malfunction or a fire may also occur.

• Do not put many loads on one electrical outlet.
Other devices may catch fire due to abnormally high temperatures.

• Be sure to ground the instrument.
An electric shock or a fire may occur in the event of failure or electrical leakage.

4. Power ON the system.
Turn ON the power switch.

Switching to the OFF side ( ) turns the power off.

5-3

5.3 Tracings

5.3.1 Tracing frames

5.3.1.1 Tracing both rims

This is the procedure to measure the outline of both rims as well as the FPD (Frame pupil
distance).

1. Set frames into the tracing unit.

1) Set the top of the frames.
Draw the lower slider and set the frame top
between the rim clips on the upper slider. Rim clips

2) Set the bottom of the frames. Lower slider
Slowly release the lower slider, placing the
frame bottom between the rim clips on the
lower slider.

3) Bring the frames to the center of the tracer.

2. Start tracing both rims.

Press .

Tracing is complete when the frames are
released.

3. Draw the lower slider and take out the
frames.

5-4

5.3.1.2 Tracing a single rim

This is the procedure to trace one of the frame rims.

1. Set frames into the tracing unit.
See Step 1. of “5.3.1.1 Tracing both rims” (p. 5-3).

2. Press either or . .
.
For tracing the rim for the left eye ⇒ Press
For tracing the rim for the right eye ⇒ Press

NOTE

• FPD (frame pupil distance) cannot be measured at single rim tracing.

5.3.1.3 Semi auto tracing

This is the procedure to bring the stylus into the bevel groove of the frame by hand when the
stylus cannot be set in the groove automatically.

1. Set frames into the tracing unit.
See Step 1. of “5.3.1.1 Tracing both rims” (p. 5-3).

2. Press *1 for more than three seconds.

The stylus will move and stop at the tracing start position.

3. Manually set the stylus into the groove.

4. Start tracing.

Press .

When tracing is complete for one rim, the stylus will move to the other rim and stop at the

tracing start position.

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

*1 To trace a single rim, press or for more than three seconds.

5-5

5.3.1.4 Tracing goggle type frames

When tracing sharply curved frames such as goggles, the stylus may come off the bevel groove.
In such a case, set only one rim between the rim clips and hold the frame temple of the other side
during tracing.
The following only describes the procedure for the right rim since either rim can be traced in the
same way.

1. Set the rim for the right eye horizontally to the tracing unit.

• Do not set the left rim.
• Hold the left temple of the frame to keep the

right rim horizontal.

2. Start tracing. Non-tracing side Tracing side
Press . Hold manually. Set the rim horizontally
Do not set between between the rim clips.
NOTE the rim clips.

• Though the rim clips hold the right rim securely, do not take your hand off the temple.
If the frame moves during tracing, precise measurement cannot be made.

3. Take out the frames from the tracing unit.

NOTE

• FPD (Frame pupil distance) cannot be measured when tracing goggle type frames.

5.3.2 Tracing patterns 5-6

White button

1. Set a pattern onto the pattern setting unit. Pattern

1) Set a pattern while pressing the white button
on the pattern setting unit.
Make sure that the pattern is pushed as far
as it will go.
Fit the pattern as the following figure shows.

Pattern setting unit

For left pattern For right pattern

Nasal side Temporal side Temporal side Nasal side

2) Release the white button to lock the pattern.

2. Set the pattern setting unit.

Draw the lower slider and set the pattern setting
unit onto the pattern setting unit support.
Fit the pins of the pattern setting unit to the two
circular holes on the pattern setting unit support.

The pattern setting unit is fixed to the pattern
setting unit support by magnet.

Pattern setting unit

3. Press either or . .
.
For tracing the right pattern ⇒ Press
For tracing the left pattern ⇒ Press

The tracing pin will come out, and then tracing
will start.

Pattern tracing pin

5-7

4. When tracing is completed, take off the pattern setting unit.
When tracing is complete, the tracing pin will be automatically stored.
It is easy to remove the unit from the left side.

NOTE

• FPD (Frame pupil distance) cannot be measured when tracing patterns.

5.3.3 Tracing dummy lenses Lens table
lens cup
1. Block the convex side of a dummy lens with a lens cup.

1) Mark the estimated center of a dummy lens
with a lensmeter.
Set the dummy lenses mounted in the frames
and make sure that the frames are in contact
with the lens table to mark the lenses.

2) Affix the provided double-coated adhesive
pad on a lens cup.

3) Block the convex side of the dummy lens
with the lens cup, using a centering device.
Align the marks on the dummy lens to the
direction of the groove on the lens cup to
block it.

Convex side of dummy
lens

2. Set the lens cup onto the pattern setting unit. 5-8
Fit the lens cup while pressing the white button
of the pattern setting unit. White button

For left-eye lenses For right-eye lenses

Temporal side Nasal side Nasal side Temporal side

Pattern setting unit

3. Set the pattern setting unit.
Draw the lower slider and set the pattern setting
unit onto the pattern setting unit support.
Fit the pins of the pattern setting unit to the two
circular holes on the pattern setting unit support.

The pattern setting unit is fixed to the pattern
setting unit support by magnet.

4. Press either or . . Pattern setting unit
.
For tracing the right-eye lens ⇒ Press
For tracing the left-eye lens ⇒ Press

The tracing pin will come out, and then tracing
will start.

NOTE

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

5. When tracing is completed, take off the pattern setting unit.
When tracing is complete, the tracing pin will be automatically stored.
It is easy to remove the unit from the left side.

NOTE

• FPD (frame pupil distance) cannot be measured when tracing dummy lenses.

5-9

5.3.4 Stopping tracing

To stop tracing, follow the instructions below.

5.3.4.1 Stopping frame tracing

1. Press .

The stylus will return to its original position and the frames will be released.

5.3.4.2 Stopping pattern or dummy lens tracing

1. Press .

2. Take off the pattern setting unit.
The pattern tracing pin will be stored.

5 - 10

5.4 Treatment after Daily Use

1. Turn OFF ( ) the power switch.

2. Perform after-use daily checks. See “5.5.2 Daily checks after use” (p. 5-11).

3. Put the attached dust cover over the instrument.

CAUTION

• If the instrument is not used for a long time, disconnect the power plug from the wall
outlet.
If dust settles on the plug, moisture may be absorbed and a short-circuit or a fire may
occur.

NOTE

• When the instrument is not in use, turn OFF the power and put the dust cover on.
If dust etc. settles on the instrument, it may affect measurement accuracy.

5 - 11

5.5 Daily Checks

5.5.1 Daily checks before use

Check the followings before each use of the day. Besides, if the instrument is not used every day,
check the following every time before use.
It is recommended to provide a check list to make sure everything is checked.
A. Is there any deformation or stain which may be a damage in use?
B. It is recommended to perform calibration. See “6.1 Calibration”.

5.5.2 Daily checks after use

Check the following after use each day.
It is recommended to provide a check list to make sure everything is checked.
A. Is the power turned OFF?
B. Is there any stain on, or damage to, the main body?
C. Is there any stain on, damage to, or loss of the pattern setting unit, standard pattern,

or standard frame?
D. Is the dust cover on?

5 - 12

5.6 Keeping the Pattern Setting Unit in Storage

Keep the pattern setting unit when it is not in use in a place where it is unlikely to be lost or
scratched; it is recommended to attach the provided holder for the pattern setting unit to a side
cover of the LT-900 on the left or right and to set the pattern setting unit to the holder.

Holder for the pattern setting unit Pattern setting unit

<Attaching the holder for the pattern setting unit>
The pictures illustrate how to attach the
holder to the right side of the LT-900; the same
procedure can be followed for attaching the
holder to the left side of the LT-900.

1. Unscrew two countersunk head screws at the
bottom of the LT-900.

Countersunk head screws

2. Attach the provided holder for the pattern
setting unit with the screws unscrewed in
Step 1.

Holder for pattern setting unit

§6 MAINTENANCE

6.1 Calibration

Using the attached standard frame and standard pattern, perform calibration of the tracer.

1. Turn ON the power.

2. After the initialization is finished, put the system into the calibration mode.
1) Press while pressing .

2) Release .

3) Release .

The electronic beeper will sound and the

lamp of will blink.

3. Set the attached standard frame ( 45).
Put the face with number inscriptions up and
set it so that the rim clips fit into the groove of
the standard frame.

4. Press .

Auto calibration (frame) will be performed.

Auto calibration will finish after several

tracings. The electronic beeper will sound and

the system will exit from the calibration mode.

Then, the standard frames will be released.

Standard frame ( 45)

5. Put the system into the calibration mode.

1) Press while pressing .

2) Release .

3) Release . will blink.
The electronic beeper will sound and the lamp of

6-2

6. Take off the standard frame and set the
attached standard pattern.
See “5.3.2 Tracing patterns Step 1 - 2)”.

7. Press .
Auto calibration (pattern) will be performed.
When auto calibration is complete, the
electronic beeper will sound and the system will
exit from the calibration mode. Then, the
system will go back to the normal mode.

8. Take off the standard pattern.

6.2 Replacing Fuses

If the instrument can not be activated though the power switch is turned ON, the fuses may be
blown out. Replace the fuses with new ones.

CAUTION

• Be sure to turn OFF the power switch and pull out the power cable before replacing the
fuses.
You may get an electrical shock.

• Use the specified fuses only. (T0.5A 250V)
Fuses other than the specified ones may cause a fire.

1. Turn OFF ( ) the power switch and disconnect the power cable from the wall outlet.

2. Disconnect the power cable from the inlet.

3. Remove the fuse holder under the inlet.
Pull out the fuse holder by pressing the clip.

4. Remove the old fuses from the holder and replace them with new ones.

5. Push the fuse holders into the body as before. Clip

Fuse holder

6-3

6.3 Cleaning Exterior

When the exterior of the instrument such as the covers or panels become dirty, wipe them with a
soft cloth. For stubborn dirt, immerse a cloth in a neutral detergent, wring it well, and wipe the
area. Wipe off with a dry cloth to finish.

CAUTION

• Never use an organic solvent such as paint thinner.
This could dissolve the surface.

6.4 List of Consumable Articles

Article Order No.
Fuse 804-02-02037

§7 SPECIFICATIONS

Tracing method : 3-D binocular automatic tracing

Traceable size : Frame R9 - R46 mm (radius from measurement center)
(vertically up to max. 30 mm from center)
Pattern R12 - R46 (radius from measurement center)
(vertically up to min. 10 mm from center)

Measurement item : Lens shape
FPD
3-D circumference (2-D circumference at pattern tracing and
dummy lens tracing)
Frame front curvature angle
Frame curvature

Measuring points : 1000 points

Frame clamping : One-touch automatic clamping

Communication : RS-232C is built in.

Dimensions : 296 (W) × 290 (D) × 148 (H) mm

Weight : Approx. 8 kg (only main body)

Power supply : AC 100 - 120/230 V 50/60 Hz
(Main supply voltage fluctuation should not exceed ±10% of
the nominal voltage.)

Power consumption : 50 VA

Environmental condition : Temperature…–25 - 70 ºC
(In transference/storage) : Humidity…10 - 100 %
: Pressure…700 - 1060 hPa

Environmental condition : Setting location…Indoor
(In usage) : Temperature…5 - 40 ºC
: Humidity…Relative humidity does not exceed 50 % at a

maximum temperature of 40 ºC.
: Pressure…700 - 1060 hPa
: Altitude…1000 m or less at sea level

Transient overvoltages according to installation categories
(OVERVOLTAGE CATEGORIES)

:

Pollution degree : 2 (IEC 60664)

§8 ACCESSORIES

8.1 Standard Specifications

Pattern setting unit ......................................................................................... 1 pc.
Spare fuse .................................................................................................... 2 pcs.
Standard pattern ........................................................................................... 1 pc.
Standard frame ............................................................................................. 1 pc.
Power cord .................................................................................................. 1 pc.
RS-232C cable ............................................................................................ 1 pc.
Dust cover .................................................................................................... 1 pc.
Operator’s manual ........................................................................................ 1 pc.

8.2 LAB Specifications

* The following are included in addition to STD accessories.
Barcode scanner ........................................................................................... 1 pc.
RS-232C/RS-485 converter ......................................................................... 1 pc.

8.3 DVI Specifications

* The following are included in addition to STD accessories.
Barcode scanner (for DVI B type) ................................................................ 1 pc.
Numeric keypad (for DVI T type) ................................................................. 1 pc.

§9 CHECK LIST

After the installation, check if the instrument is intalled correctly and works normally.
Mark in “ ” of checked items as follows.

No problem: , Adjustment effect: , No check (unnecessary):

Check items Operator's manual

c Cautions on place of installation p. 2-2 to 2-3
p. 2-3, 7-1
Check of c Cautions on connection to power source p. 2-3, 7-1
installation c Ground connection p. 2-3
conditions c Cable connection for external devices (option) p. 8-1
c Accessories p. 5-2
p. 5-3, 5-4, 5-9
c Function of switch: Power switch p. 5-4, 5-6, 5-8
p. 5-4, 5-5, 5-6, 5-8
c Function of switch: Main tracing key p. 5-3 to 5-5, 5-9
p. 5-6 to 5-7, 5-9
c Function of switch: Left tracing key p. 5-7 to 5-8, 5-9
p. 6-1 to 6-2
Check of function c Function of switch: Right tracing key
c Function for tracing: Frames

c Function for tracing: Patterns

c Function for tracing: Dummy lenses
c Calibration

Product name LT-900 Serial Installation
Number date

Person in charge of Signature
installation

INDEX

B
Barcode scanner .......................................... 4-2

C
Calibration .................................................. 6-1

I
In a case that the stylus cannot be set

in the groove automatically ...................... 5-4

P
Pattern tracing pin ......................... 5-6, 5-8, 5-9
Pattern tracing unit...................................... 5-6
Pattern tracing unit support......................... 4-2

R
Replacing fuses ........................................... 6-2
Rim clips ..................................................... 4-2

S
Semiauto tracing ......................................... 5-4
Stylus .......................................................... 4-2

T
Tracing both rims ........................................ 5-3
Tracing dummy lenses ................................ 5-7
Tracing frames ............................................ 5-3
Tracing goggle type frames......................... 5-5
Tracing patterns .......................................... 5-6
Tracing a single rim .................................... 5-4
Tracing sharply curved frames .................... 5-5