TL-3000A Operator Manual Oct 2001

IMPORTANT PRECAUTION

•

Never install this instrument near locations where explosive or flammable materials are used or stored. Such installation may result in a fire or an explosion.

SYMBOLS USED IN THIS MANUAL The symbols used in this manual represent the following messages: •

This is a precaution that, if unheeded, will result in a hazardous situation where there is an imminent danger of serious injury or death.

•

This is a precaution that, if unheeded, may result in a situation where there is a possibility of minor or moderate injury or damage to property.

•

This is an additional instruction, which may contain a special precaution on company policy related , either directly or indirectly, to the safety of personnel or to the protection of property.

i

IMPORTANT PRECAUTION / SYMBOLS USED IN THIS MANUAL

Authorized Tomey Service Centers: Headquarters, Pacific rim Tomey Corporation (Tomey Japan) 2-11-33 Noritakeshinmachi Nishi-ku, Nagoya 451-0051 JAPAN Tel: +81 52-581-5327 Fax: +81 52-561-4735

North/South America Tomey Corporation USA (Tomey USA) 300 Second Ave. Waltham, MA 02451 USA Tel: +1 781-890-1515 Fax: +1 781-290-5885 Europe Tomey AG (Tomey Europe) Am Weichselgarten 19a 91058 Erlangen-Tennenlohe GERMANY Tel: +49 9131-77710 Fax: +49 9131-777120

ID: 0110

CONTENTS 1. PRIOR TO USE ... 1-1 1.1 1.2 1.3 1.4

Cautionary notes ...1-1 Unpacking ...1-3 Explanation of terms ...1-4 Outline of operation ...1-6

2. COMPONENT LIST AND FUNCTIONS ... 2-1 2.1 2.2 2.3 2.4

Front ...2-1 Back ...2-2 Screen layout ...2-3 Buttons for operations ...2-4

3. METHOD OF OPERATION ... 3-1 3.1 Preparation for operating ...3-1 3.2 Measuring methods ...3-3 3.2.1 Measuring single vision lenses ... 3-3 a) Measuring single lenses (S mode) ... 3-3 b) Measuring framed lenses (RL mode) ... 3-6 3.2.2 Measuring multi-focal lenses ... 3-10 a) Measuring progressive addition lenses (PROG mode) ... 3-11 b) Measuring bifocal and trifocal lenses ... 3-15 3.2.3 Measuring Lens Interpupilling ... 3-18 a) Center to Bottom Display ... 3-24 3.2.4 Measuring prism ... 3-26 3.2.5 Measuring high index lenses (HI mode) ... 3-30 3.2.6 Measuring High Power lenses (HP mode) ... 3-31 3.2.7 Measuring contact lenses (CL mode) ... 3-32 3.2.8 Auto hold mode ... 3-36 3.2.9 Detecting progressive lenses ... 3-37 3.2.10 UV checking function ... 3-38

3.3 Operating the clamp, marking device and lens table ...3-42 3.3.1 Clamp ... 3-42 3.3.2 Marking device ... 3-43 3.3.3 Lens table ... 3-44 3.4 Setup ...3-45 3.5 Printout ...3-56 3.6 Data communication (RS-232C) ...3-57 3.7 LCD contrast adjustment ...3-58 3.8 AUTO POWER OFF (Automatic power saving function) .3-59 CONTENTS

ii

4. MAINTENANCE AND INSPECTION ... 4-1 4.1 Warranty ...4-1 4.2 Routine maintenance ...4-2 4.2.1 Cleaning cover glass ... 4-2 4.3 Replacing spare parts ...4-3 4.3.1 Fuse ... 4-3 4.3.2 Ink cartridge ... 4-4 4.3.3 Printer paper ... 4-6 4.4 Storage ...4-7 4.5 Packing materials ...4-7

5. TROUBLESHOOTING ... 5-1 5.1 Troubleshooting guide ...5-1 5.1.1 General operation ... 5-1 5.1.2 Progressive addition lens measurement ... 5-4 5.2 Error messages ...5-8

6. SPARE PARTS ... 6-1 7. SPECIFICATIONS ... 7-1 7.1 7.2 7.3 7.4 7.5

Measurement ...7-1 Data control ...7-1 Physical dimensions and electrical requirements ...7-2 Environmental conditions ...7-2 Approved international standards ...7-2

8. INDEX ... 8-1

iii

CONTENTS

CAUTION MARKS • There are caution marks on the side and rear of the main unit .

•

Do not mutilate the caution marks.

•

The external output terminal is not isolated from the internal circuit. Before connecting any external devices, contact your Tomey representative. Otherwise, the internal circuit may be damaged.

•

Do not touch the edge of the paper cutter at the printer paper outlet.

CAUTION MARKS

iv

(This page is left intentionally blank.)

v

1. PRIOR TO USE •

Read this Operator Manual carefully before using this instrument in order to operate it properly and safely.

•

Do not use procedures other than those specified in this manual.

1.1 Cautionary notes

•

Only well-trained personnel should operate this instrument.

•

When installing this instrument, observe the following items. - Do not install this instrument in a location where it might be exposed to water or chemicals. - Do not install this instrument in a location where it might be subject to adverse influences, such as excessive atmospheric pressure, high temperature, excessive humidity, poor ventilation, direct sunlight, dust, salt or sulfur in the air. - Ascertain that factors such as excessive slope, vibration and impact will not endanger the instrument (including during transportation). - Do not install this instrument near the storage of chemical substances or in a location where gas may be generated. - Adhere to the specified mains frequency, voltage and allowable current (or allowable power consumption).

•

During use of this instrument, observe the following: - Do not move a coated lens when it is held with the clamp. This may result in damage to the coating. The clamp should be used only for marking. - Clean the cover glass under the nose piece often with a soft cloth. - Always keep the tip of the nose piece clean. Dust on it may result in scratches on a lens.

1.1 Cautionary notes

1-1

•

When cutting the printout, hold the paper against the edge of the paper cutter, bend the paper upward and tear off the paper by pulling in a lateral direction. Otherwise, a paper jam or malfunction of the printer may result.

•

When this instrument is not in use, keep the dust cover over it.

•

When the instrument is not used for an extended period of time, unplug the power cord.

•

After using this instrument, observe the following: - Do not apply excessive force when unplugging the cords. - Refer to the Section 4.4 "Storage" for storage instructions.

•

If you suspect that this instrument is not functioning properly, do not attempt to repair it. Contact your Tomey representative or local distributor.

•

Do not modify this instrument.

•

Maintenance: - Inspect this instrument and its accessories periodically. - If this instrument has been idle for a long period of time, make sure that it is functioning properly and safely before using it again. For this, TOMEY recommends using a trial lens set for checking accuracy.

•

Due to vibration during transport and/or environmental changes of storage, the ink may leak out of the marking device cartridge. If you find an ink stain and/or leakage of ink at the tip of the marking device, wipe it off and make sure it is functioning properly.

1-2

1.1 Cautionary notes

1.2 Unpacking Upon unpacking , inspect that all the components are present and that there is no visible damage to any of them. If there are any missing or damaged items, immediately contact your Tomey representative or local distributor.

•

Be sure to retain all shipping and packing materials for reuse if the instrument will be transported or shipped.

COMPONENTS

• Main unit of the AUTO LENSMETER TL-3000A ... 1

TL-3000A

• Power Cord ... 1 • CL (Contact Lens) Nose Piece ... 1 • Hard Contact Lens Holder ... 1 • Spare Fuse (250V, 2.0A) ... 1 • Printer Paper (One roll is already in the unit) ... 3 • Dust Cover ... 1 • Operator Manual (this book) ... 1

1.2 Unpacking

1-3

1.3 Explanation of terms • D ... Diopter (a unit of measurement referring to the refractive power of a lens; reciprocal of the focal length of the lens in meters) • ∆ ... Prism diopter (a unit of the measurement of angular deviation of light produced by a lens) • SPH (S) ... Spherical refractive power (unit: D, diopter) • CYL (C) ... Cylindrical refractive power (unit: D, diopter) • AXIS (A)... The position of minimum or maximum power in a lens that has cylinder power. Axis is measured in degrees and is used to specify the orientation of a lens to correct astigmatism. (unit: degree) • ADD ... Additional power of a multi-focal lens (including a progressive addition lens). • L ... Distance between the point at which the lens is measured and the bottom edge of the lens (or frame), when the bottom edge of the lens/frame abuts the lens table. • Px, Py (in prism mode) ... Prism power (∆) in the horizontal direction (Px) and the vertical direction (Py) in rectangular coordinates. (unit: ∆) • PSM (in prism mode) ... Absolute value of prism power in polar coordinates. (unit: ∆) • BAS (in prism mode) ... Base direction of prism in polar coordinates. (unit: deg.) • DCx, DCy (in prism mode)... Displacement from the optical center (unit: mm) • P ... In High Power measurement mode, the spherical equivalent power [SPH = 1/2 CYL] (unit: D, diopter) • bf ... In High Power measurement mode, the back focus (distance of secondary principle focal point from posterior surface) of the lens (unit: D, diopter) • CL ... Contact lens • PROG mode ... Measurement mode for progressive addition lens • HI mode ... Measurement mode for high index lens • PD ... Pupillary distance (unit: mm) • ROC, LOC ... Distance between measured point of lens and bottom edge of lens/frame

1-4

1.3 Explanation of terms

• UV ... Ultra Violet (< 380 nm) • Abbe number ... Number indicating the dispersive power of a lens. The Abbe number of normal lenses is about 60 and that of high index lenses ranges from approximately 30 to 45.

1.3 Explanation of terms

1-5

1.4 Outline of operation The AUTO LENSMETER TL-3000A is an instrument for the automatic measurement of refractive and prism power of spectacles and contact lenses. The TL-3000A is composed of a built-in optical system, an electronic processing system, and a mechanical system. Placing spectacles or contact lenses on the nose piece initiates automatic measurement. The results are displayed on the LCD and the reading can be printed.

1-6

1.4 Outline of operation

2. COMPONENT LIST AND FUNCTIONS LCD

2.1 Front

Liquid crystal display displays information such as centering of lens, measurement conditions and results.

Control panel Five buttons are located on this panel to control the unit. The function of each button is indicated above the button on the LCD display.

Printer Prints out readings.

Contrast adjuster Adjusts the contrast of the LCD.

Marking device Marks the center and axis orientation of the lens.

Clamp Stabilizes the lens when marking it.

Lever Changes the position of the lens table.

Lens table Used to standardize the orientation of spectacles for accurate cylinder axis measurement and verdical prism measurement.

Nose block Used for PD measurement.

Nose piece Lens is placed on the nose piece.

HOLD button Used for holding and storing the data.

UV checker Used to measure transmission ratio of Ultra Violet (UV) light.

2.1 Front

2-1

2.2 Back

Name plate Shows the serial number.

AC power terminal The accompanying power cable is connected to this terminal.

Fuse holder The fuse is mounted in this holder.

Power switch Turns the power on or off.

External output terminal (RS-232C) Prints the data when connected to a printer, or transmits the data when connected to a computer.

2-2

2.2 Back

2.3 Screen layout

Lens Modes Single Vision mode: no message Progressive addition lens mode: PROG Bi-focal mode: Bi Tri-focal mode: Tri Contact lens mode: CL Contact Lens mode with a holder: CL High Power Mode HP

Indication of the automatic measurement mode AUTO : Automatic measurement mode

Holding data

LEFT reading

HOLD : Indicates that the data are being held.

HI

High index lens mode indicator

RIGHT reading

L Value Displays distance from measuring point to lens table. L=25

PD (Total pupillary distance) Alignment screen Centering with the cross bar

PD status ON/OFF

Error display The type of error is shown.

Data representation protocols Indicates power increment (STEP), cylinder convention (CYL) and Abbe number.

Button indication In each mode, each button on the panel below the LCD display is assigned a different function; the current function of each button is displayed by these five icons.

2.3 Screen layout

2-3

2.4 Buttons for operations 1) Display 1 (

)

MODE:

for switching between Control Panel Display 1and Control Panel Display 2. for entering Setup mode (by pressing and holding for approximately one second).

LENS:

for switching between single vision, multi-focal lens, contact lens and high power modes.

R

for switching from S-mode (for measuring single lenses) to RL-mode (for measuring lenses mounted in spectacle frames) and for switching between the right and left lens.

L:

PRINT:

for recalling and printing readings.

CLEAR:

for clearing stored readings (if any readings are in the memory). for changing from RL-mode to S-mode (if no readings are in the memory).

2) Display 2 (

)

MODE:

for switching between Control Panel Display 1 and Control Panel Display 2. for entering Setup mode (by pressing and holding for approximately one second).

+

for changing CYL reading (+, -) for the currently displayed lens(es)

-:

If you go back to Display 1, the CYL reading (+, -) returns to the default setting. It can be changed permanently in Setup Menu 1. PD:

for changing PD mode (ON/OFF) If the PD mode is ON,

is shown on the lower right of the screen.

UV:

for using UV check function

PRISM:

for changing prism mode (No display, Px/Py, PSM/BAS, DCx/DCy).

CAL:

for calibration of UV check function (only appears in UV check function).

3) HOLD button The HOLD button is used for storing a reading manually.

2-4

2.4 Buttons for operations

3. METHOD OF OPERATION 3.1 Preparation for operating •

Before turning on the power, check the following items: - Make sure that the cover glass under the nose piece is clean. Cover glass

Nose piece

- Make sure that a lens is not on the nose piece. - Make sure that the nose piece is seated properly.

1) Connect the female end of the power cord into the power receptacle on the back of the Autolensmeter and the male end in to a 3-prong power outlet. 2) Press the power switch ON. 3) The initial screen will appear for approximately five seconds.

•

When the instrument is first turned on, the LCD (liquid crystal display) may appear dim. The brightness will increas as it warms up. This may require extra time if the ambient temperature is low.

3.1 Preparation for operating

3-1

4) The measurement screen will appear.

L= 25

•

Do not place a lens onto the nose piece until after the measurement screen appears.

•

Turning the instrument on with the lens already on the nose piece initiates a beep and indicates "INITIAL ERROR" on the LCD. Remove the lens from the nose piece, then press any button to proceed.

3-2

3.1 Preparation for operating