INSTRUCTION MANUAL
COMPUTERIZED TONOMETER
CT-80
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DISPLAY FOR SAFE USE
In order to encourage the safe use of the product and prevent any danger to the operator and
others or damage to properties, important warnings are placed on the product and inserted in the
instruction manual.
We suggest that everyone understand the meaning of the following displays and icons before
reading the “Safety Cautions” and text.
DISPLAY
MEANING
Ignoring or disregarding this display may lead to
death or serious injury.
WARNING
Ignoring or disregarding this display may lead to
personal injury or physical damage.
CAUTION
• Injury refers to cuts, bruises, sprains, fractures, burn, electric shock, etc.
• Physical damage refers to extensive damage to buildings or equipment and furniture.
ICONS
MEANING
This icon indicates Hazard Alerting (Warning).
Prohibition.
Specific content is expressed with words or an icon either insert-
ed in the icon itself or located next to the icon.
This indicates Prohibition.
Specific content is expressed with words or an icon either insert-
ed in the icon itself or located next to the icon.
This indicates Mandatory Action.
Specific content is expressed with words or an icon either insert-
ed in the icon itself or located next to the icon.
2
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SAFETY CAUTIONS
Icons
Prevention item
Page
To avoid electrical shock, do not open the instrument.
Refer all servicing to qualified personnel.
45
To avoid electric shocks, do not remove the covers from the bottom
and top surfaces, TV monitor, measuring unit, etc.
45
—
—
—
To prevent shock hazard, do not allow water or other foreign matter
to enter into the instrument.
To avoid fire and electric shocks in case of tumbling, do not place a
cup or vessel containing water/fluid on the instrument.
To avoid electric shocks, do not insert objects or metals through the
vent holes or gaps or contain them inside the machine body.
To avoid electrical shock and fire, unplug the power cable before
removing the fuse cover. Additionally, be sure to replace the fuse
cover before plugging in the power cable.
55
55
Use only the attached fuses. Using other fuses may cause a fire.
Should any anomaly, such as smoke, occur, immediately switch
OFF the power source and unplug the power cable.
Continued use ignoring the condition may cause fire. Contact your
dealer for repair.
—
3
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SAFETY CAUTIONS
Icon
Prevention item
Page
13
To avoid potential injury, hold the instrument in the proper position.
To avoid electrical shock, do not handle the power plug with wet
fingers.
14
30
34
Never insert your fingers under the measuring head.
∗ Inform the patient of this, too.
Careless insertion of fingers may cause injury by pinching.
Never insert your fingers under the measuring head.
∗ Inform the patient of this, too.
Careless insertion of fingers may cause injury by pinching.
Do not use or apply any spray-typed cleaner near the instrument.
If a drop of cleaner remains inside the measuring nozzle, the pa-
tient’s eye may be injured during measurement.
56
13
Before carrying the instrument, be sure to affix it firmly by turning
the fixing screw at the base.
If the instrument is moved with the screw loosened, it may result in
damage to the instrument.
When moving the instrument, be sure to hold it at the bottom sur-
face with two people. Carrying by one person may cause back inju-
ry or injury by falling parts. Also, holding areas other than the bot-
tom surface may cause pinching fingers between parts and injury
by falling parts as well as damage to the instrument.
13
31
Before measuring, set the safety stopper. If the safety stopper is
not set, it may cause injury to the eye that comes in contact with the
measuring window glass. Set the safety stopper separately for the
right and left eyes.
When setting the safety stopper, do it from the instrument side
(safety stopper knob side).
Setting from another position does not easily allow you to check the
positions of the measuring window glass and the patient’s eye and
may cause injury to the eye that comes in contact with the measur-
ing window glass.
31
To clean the measuring window glass and the window glass inside
the measuring nozzle, use ethanol. Using other chemicals may
cause damage to the patient's eye during measurement.
52
53
4
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USAGE AND MAINTENANCE
PURPOSE
This tonometer “CT-80” is a precision electrical device for medical use that must be
used under the instruction of a doctor.
USER MAINTENANCE
To maintain the safety and performance of the equipment, never attempt to do mainte-
nance on your own. Ask our serviceman for repair except for the items specified here
which can be maintained by the user. For details, follow the instructions.
use replacement
The primary fuses for the main body may be replaced by a non-trained service techni-
cian. For details, refer to “Replacing the Fuse” on page 55.
leaning of measuring window
Cleaning of the measuring window glass is possible. For details, refer to the instruc-
tions in “Cleaning the Measuring Window Glass” on page 52.
leaning of window inside the nozzle
Cleaning of the window inside the nozzle is possible by following the instruction in
“Cleaning the Window Glass inside the Nozzle” on page 53.
ESCAPE CLAUSE
• TOPCON shall not take any responsibility for damage due to fire, earthquakes, actions
by a third party or other accidents, or the negligence and misuse of the user and use un-
der unusual conditions.
• TOPCON shall not take any responsibility for damage derived from the inability to use
this equipment, such as a loss of business profit and suspension of business.
• TOPCON shall not take any responsibility for damage caused by operations other than
those described in this Instruction Manual.
• Diagnoses shall be made on the responsibility of pertaining doctors and TOPCON shall
not take any responsibility for the results of such diagnoses.
5
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WARNING INDICATIONS AND POSITIONS
To ensure the safe usage of this equipment, precaution indications are provided.
Abide by the following warning instructions. If any of the following labels are missing,
please contact us at the address printed on the back cover of this manual.
WARNING
• To avoid electrical shock, do not open
the instrument. Refer all servicing to
qualified personnel.
CAUTION
• To avoid potential injury during op-
eration, do not touch the patient’s
eyes or nose with the instrument.
WARNING
• To avoid electrical shock, do not open
the instrument. Refer all servicing to
qualified personnel.
CAUTION
• To avoid potential injury, insure that
the safety stopper knob is engaged
prior to use.
WARNING
• Electrical shock may cause burns or
possible fire. Turn the main power
OFF and UNPLUG the power cord
before replacing the fuses. Replace
only with fuses of the correct rating.
6
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CONTENT
Introduction
1
2
3
5
5
6
How to Print Out Measurement Values 42
How to Correct Measurement Values 43
Display for Safe Use
Safety Cautions
Usage and Maintenance
Escape Clause
Input/Output via RS-232C
44
ICE
Warning Indications and Positions
Main Body Components
Control Panel Components
Monitor Screen Components
Contents of Printer Output
Standard Accessories
Checking Operations
45
8
9
Optional Accessories
Specifications & Performance
46
46
10
11
12
RS-232C Communication Specifications 47
Accuracy Maintenance
52
56
How to Install the Instrument
How to Connect the Power Cable
Special Notes on Cleaning
13
14
How to Connect External I/O Terminals 14
Initial Settings
15
23
How to Set Printer Paper
How to Reset from Power Save Status 28
Preparations Before Measurement
Measurement Under Auto Mode
Measurement Under Manual Mode
How to Delete Measurement Values
29
33
38
41
7
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MPONENTS
MAIN BODY COMPONENTS
Measuring head
TV Monitor
Measuring switch
Control lever
Power lamp
Clamping knob
Safety stopper knob
Control panel
Fixing knob (used to
stop movements
during removal)
External I/O terminal
Forehead rest
Measuring window
Measuring nozzle
Height mark
Chinrest pad pin
Chinrest
Chinrest handle
Power switch
Power cable
Measuring window cap
Adjusting knob
8
COMPONENTS
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CONTROL PANEL COMPONENTS
Clear switch
Air check switch
Select switch
Print switch
Auto/Manual switch
Down switch
Menu switch
Range switch
Up switch
Print switch ................... Prints out the screen readings. When there is no reading, holding
the switch down feeds the paper.
Range switch ................ Switches the range between 0-30 and 0-60.
Clear switch .................. Deletes all the measurement values from the screen.
Menu switch.................. Displays the Menu screen.
Auto/Manual switch...... Switches the mode between auto and manual. Also, when se-
lecting menu software, it moves the cursor right ( ).
Air check switch........... Performs an air check. Also, when selecting menu software, it
moves the cursor left ( ).
Down switch ................. When selecting menu software, it moves the cursor down ( ).
Up switch....................... Range switch. When selecting menu software, it moves the
cursor up ( ).
9
COMPONENTS
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MONITOR SCREEN COMPONENTS
easurement Screen (Auto mode, alignment)
Target eye
Measurement mode
Outer alignment mark
Alignment bar
Measuring range
Alignment dot
Inner alignment mark
easurement Screen (Manual mode, alignment OK)
Outer alignment mark
Inner alignment mark
(alignment OK)
enu Screen
Cursor
10
COMPONENTS
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CONTENTS OF PRINTER OUTPUT
Bar code
Equipment No.
ID No.
Work ID No.
Time/Date display
Measured eye pressure
values
Average eye pressure
values
Message column
11
COMPONENTS
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STANDARD ACCESSORIES
The following are the standard accessories. The figures in parentheses are the
quantities. Please check to see that all accessories are contained.
Power cable (1)
Rail cover (2)
Printing paper (2)
Chinrest pad (1)
Chinrest pin (2)
Silicone cloth (1)
Fuse (2)
Dust cover (1)
* Different by destinations
Cleaning kit (1)
Instruction Manual, Unpacking and Assembly
(1 each)
Window glass cleaning procedure (1)
12
COMPONENTS
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PARATIONS
HOW TO INSTALL THE INSTRUMENT
Before carrying the instrument, be sure to affix it firmly by
turning the fixing screw at the base.
If the instrument is moved with the screw loosened, it may
result in damage to the instrument.
CAUTION
When moving the instrument, be sure to hold it at the bottom surface
with two people. Carrying by one person may cause back injury or
injury by falling parts. Also, holding areas other than the bottom sur-
face may cause pinching fingers between parts and injury by falling
parts as well as damage to the instrument.
CAUTION
CAUTION
To avoid potential injury, hold the instrument in the proper
position.
1 Fasten the clamping knob.
2 Hold the instrument body firmly at the specified positions and place it on the auto-
matic instrument table.
For the automatic instrument table, see “OPTIONAL ACCESSORIES” on page 46.
Fixing knob
Specified holding positions
Holding the instrument
3 After installing the instrument, loosen the fixing knob.
Now the body components can be moved.
4 If the machine body is slightly off level, properly turn the adjusters at the four corners
for fine adjustment.
Do not unscrew the adjusters more than 1cm.
13
PREPARATIONS
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HOW TO CONNECT THE POWER CABLE
To avoid electrical shock, do not handle the power plug
with wet fingers.
CAUTION
POWER SWITCH
1 Make sure the
is OFF.
2 Attach the power cable to the machine body.
3 Plug the power cable into the 3-pin AC receptacle with grounding.
HOW TO CONNECT EXTERNAL I/O TERMINALS
S-232C OUT
This machine can be connected to another device, including a personal computer via
the RS-232C OUT terminal.
1 Connect the cable to the RS-232C OUT terminal of this machine.
2 Connect the other cable end to another device.
S-232C IN
Output terminal
Input terminal
This machine can be connected to another device, including a bar code reader via the
RS-232C IN terminal.
1 Connect the cable to the RS-232C IN terminal of this machine.
2 Connect the other cable end to the external device.
14
PREPARATIONS
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INITIAL SETTINGS
During the initial setting, date, time, operating time of the power save function, RS-
232C, mode of average value, buzzer and message can be set.
reparations
1 Make sure the power cable is connected.
For connection, see “HOW TO CONNECT THE POWER CABLE” on page 14.
POWER SWITCH
2 Check the no-patient condition of the instrument and turn the
ON.
• When the machine is moved from a cold room to a warm room or
when the room temperature suddenly rises, it may cause dewing in-
side the machine and disable measurement. In this case, leave the
machine alone for about 30min until it reaches room temperature.
MEMO
isplaying The Menu Screen
1 Make sure that the Measurement screen is displayed.
2 Press
on the control panel.
The Menu screen is displayed.
eturning To The Measurement Screen
1 Press
,
on the control panel, move the cursor to “EXIT” and press
MEASUREMENT SWITCH
.
Or, press
on the control panel. The Measurement screen returns.
15
PREPARATIONS
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ime/Date Setting
Example of operation: Illustrations show time setting.
1 Press
on the control panel to get the Menu screen.
2 Press
,
on the control panel, move the cursor to “DATE/TIME SET” and
MEASUREMENT SWITCH
press
.
The Date/Time setting screen is displayed.
3 Make sure that the display “BATTERY → O.K.” appears.
If the display is “BATTERY → N.G.”, the built-in clock battery is used up. Contact your
dealer. Additionally, when the battery becomes exhausted, time and date items are
not printed and “DATE” is displayed instead.
4 Press
,
on the control panel, move the cursor to “HOUR” and press
MEASUREMENT SWITCH
.
16
PREPARATIONS
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MEASUREMENT SWITCH
5 Press
,
of the control panel, renew figures and press
.
The renewed figures are inputted.
6 Press
,
of the control panel, move the cursor to “EXIT” and press
MEASUREMENT SWITCH
.
Date and other items can also be renewed at the same time.
etting The Power Save Time
A time for the power save function to achvale can be selected from 10, 20, 30 or 60min.
For shipment, 10min. is set.
1 Return to the Menu screen.
2 Press
,
on the control panel, move the cursor to “POWER SAVE TIME” and
MEASUREMENT SWITCH
press
. The Power Save Time Setting screen is displayed.
3 Press
,
on the control panel and change the power save time.
17
PREPARATIONS
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5 ↔ 10 ↔ 20 ↔ 30 ↔ 60
MEASUREMENT SWITCH
4 Press
. The Menu screen is displayed.
S-232C INPUT/OUTPUT Settings
For shipment, settings are EQUIPMENT (Equipment No.) No.1, FORMAT (communi-
cation mode) OFF, and SPEED (communication speed) 2400
Example: Setting the equipment No.
Each time
,
is pressed, the display changes as follows:
1 Return to the Menu screen.
2 Press
,
of the control panel, move the cursor to “RS-232C MODE” and press
MEASUREMENT SWITCH
.
The RS-232C Mode is displayed.
18
PREPARATIONS
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3 Press
,
on the control panel, move the cursor to “EQUIPMENT” and press
MEASUREMENT SWITCH
.
4 Press
,
on the control panel, change the equipment No. and press
MEASUREMENT SWITCH
.
The equipment No.(EQUIPMENT) can be selected from 0000 to 0099. Each time
is pressed, the display changes as follows:
,
OFF ↔ MODE1 ↔ MODE2 ↔ MODE3 ↔ MODE4 ↔
When setting the speed, the display changes from 2400-9600 each time
pressed.
,
is
2400 ↔ 9600
“EQUIPMENT” and “WORK ID NO.” can be reset by pressing
.
5 Press
,
on the control panel, move the cursor to “EXIT” and press
MEASUREMENT SWITCH
. The Menu screen returns.
19
PREPARATIONS
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etting The Average Value Mode
The average value display of the measurement values can be selected from integer and
decimal displays. For shipment, the integer display is set.
1 Return to the Menu screen.
2 Press
,
on the control panel, move the cursor to “AVERAGE MODE” and
MEASUREMENT SWITCH
press
.
The Average Value Mode screen is displayed.
3 Press
,
on the control panel to change the mode.
20
PREPARATIONS
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15
: The average value is displayed as an integer (by rounding fractions to the
nearest whole number).
15.0 : The average value is displayed up to one decimal (by rounding fractions to the
nearest tenth).
MEASUREMENT SWITCH
4 Press
etting The Buzzer
. The Menu screen returns.
The buzzer can be turned ON/OFF by pressing the switches on the control panel.
1 Return to the Menu screen.
2 Press
,
on the control panel, move the cursor to “BUZZER SET” and press
MEASUREMENT SWITCH
.
The Buzzer Setting screen is displayed.
3 Press
,
on the control panel to select ON/OFF.
21
PREPARATIONS
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MEASUREMENT SWITCH
4 Press
.
The Menu screen returns.
essage Input
You can add a brief message to the printout.
1 Return to the Menu screen.
2 Press
,
on the control panel, move the cursor to “MESSAGE INPUT” and
MEASUREMENT SWITCH
press
.
The Message Input screen is displayed.
Input column
Selection column
3 Press
,
,
,
on the control panel to move the blinking icon to a character
in the selection column for input.
22
PREPARATIONS
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↔
: A space for 1 character (Use this to delete a character, too.)
STEP : The blinking icon of the input column moves right.
BACK : The blinking icon of the input column moves left.
MEASUREMENT SWITCH
4 Press
.
The character selected by the blinking icon is inputted.
5 Press
,
,
,
on the control panel, move the blinking icon in the selection
MEASUREMENT SWITCH
column to “EXIT” and press
.
The Menu screen is displayed.
HOW TO SET PRINTER PAPER
uto Setting
1 Press the printer cover with your thumb, slide it aside and remove.
When the right/left end is reached, the blinking icon goes down to the next line.
A message can contain up to 3 lines, 20 characters per line.
Printer cover
23
PREPARATIONS
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2 Slide the paper roll onto the paper shaft, paying attention to the direction of unwind-
ing, and pull out the top of the paper 7-8cm.
Unwinding direction
3 Insert
the
paper straight into the printer
along the paper guide.
4 When the top of the paper stops inside the printer, press
to further insert the
paper into the printer.
Paper feeding starts when the top of the paper reaches a certain depth inside the
printer.
5 When the top of the paper comes out 1cm or so from the outlet, release
.
At this moment, hold the top of the paper firmly so that it is not rolled back.
6 Turn the paper retainer lever to the illustrated position, and pull out the paper 2-3cm
so that it comes out straight from the outlet.
Paper retainer lever
24
PREPARATIONS
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7 Return the paper retainer lever back to its original position.
8 Reset the printer cover, holding the top of the paper outside.
The paper is not fed unless the paper retainer lever is lowered.
Use the following 58mm wide printer paper:
TF50KS-E2C
Using another paper may cause a printing noise or thin prints.
25
PREPARATIONS
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anual Setting
1 Press the printer cover with your thumb, slide it aside and remove.
2 Slide the paper roll onto the paper shaft, paying attention to the direction of unwind-
ing, and pull out the top of the paper 7∼8cm.
3 Turn the paper retainer lever in the arrow direction.
4 Cut the paper on the control lever side at about 2cm.
Paper retainer lever
Control lever
Cut here
26
PREPARATIONS
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5 Insert the paper straight into the printer along the paper guide.
6 Further insert the paper and draw out the top of the paper from the outlet.
7 Adjust the paper so that it comes out straight from the outlet, and then lower the pa-
per retainer lever.
The paper does not easily pass through the printer unless it is cut on the control lever
side.
27
PREPARATIONS
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8 Set the printer cover, holding the top of the paper outside.
If the paper is jammed, turn the paper retainer lever to the illustrated position, and
take out the jammed paper from the printer.
HOW TO RESET FROM POWER SAVE STATUS
This machine employs a power save function. If the machine is not used during a set
time, the power save function stops supplying power to the monitor and CCD camera.
Under the power save status, the POWER lamp of the control panel flashes.
MEASUREMENT SWITCH
1 Press
.
The Monitor screen is displayed in a few seconds, when the measurements become
available.
After resetting, the measurement mode is AUTO and the measuring range is 0-30.
Also, values measured before power saving are deleted.
28
PREPARATIONS
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IC OPERATIONS
PREPARATIONS BEFORE MEASUREMENT
urn ON the Power
1 Make sure the power cable is connected.
For connection, see “HOW TO CONNECT THE POWER CABLE” on page 14.
2 Make sure the instrument is in the no-patient condition and turn ON the
POWER SWITCH
.
3 The Title screen is displayed, and then the Measurement screen is displayed.
ir Check
This machine is equipped with a function for checking the correct operations measure-
ment system inside the instrument.
1 Remove the measuring window cap.
2 Press
on the control panel.
Air is ejected from the measuring nozzle and checking is done automatically.
3 Make sure “OK” is displayed on the monitor screen. The Menu screen should be
displayed a few seconds afterwards.
Normal operation screen
29
BASIC OPERATIONS
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If “NG (+)” or “NG (-)” is displayed, an anomaly has occurred. Turn OFF the
POWER SWITCH
, and check whether or not there is any obstacle in front of the meas-
POWER SWITCH
uring nozzle. If there is an object, remove it, and then press the
Press and perform the checking procedure again.
.
POWER SWITCH
If no object is there, a problem has occurred. Turn OFF the
the power cable, and call your dealer.
, unplug
etting the Patient
Never insert your fingers under the measuring head.
CAUTION
∗ Inform the patient of this, too.
Careless insertion of fingers may cause injury by pinching.
Abnormal operation screen
1 Return to the Measurement screen.
2 Ask the patient to sit in front of the instrument.
3 Adjust the automatic instrument table or the chair for height so that the patient can
put his or her chin on the chinrest in a comfortable position.
4 The patient places his or her chin on the chinrest and stops his or her forehead at
the forehead rest.
30
BASIC OPERATIONS
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5 Adjust the height of the chinrest, by operating the chinrest handle, so that the tail of
the patient's eye becomes level with the height mark of the chinrest post.
Height mark
Chinrest handle
etting the Safety Stopper
Before measuring, set the safety stopper. If the safety
stopper is not set, it may cause injury to the eye that co-
mes in contact with the measuring window glass. Set the
safety stopper separately for the right and left eyes.
CAUTION
CAUTION
When setting the safety stopper, do it from the instrument
side (safety stopper knob side).
Setting from another position does not easily allow you to
check the positions of the measuring window glass and the
patient's eye and may cause injury to the eye that comes
in contact with the measuring window glass.
1 Hold the control lever and pull the machine body towards the operator.
2 Turn the control lever and adjust the height of the measuring nozzle to the center of
the patient's cornea.
3 While holding the safety stopper knob in a pressed position, hold the control lever
and slowly push out the machine body.
31
BASIC OPERATIONS
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4 When the measuring nozzle reaches a position 8∼10mm from the cornea, release
the safety stopper knob.
8∼10mm
5 Holding the
control lever, try to slightly
push out the machine body to make sure the stopper is working.
If the machine body does not move forward any further, the setting is completed.
32
BASIC OPERATIONS
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MEASUREMENT UNDER AUTO MODE
• Adjust the height of the automatic instrument table so that
correct measurement values can be obtained by allowing the
patient to undergo measurements in a comfortable position.
MEMO
• Make the patient relaxed so as to secure correct measure-
ment values; make sure the patient does not hold his breath
or remain tense.
etting the Measurement Mode
The initial status of the measurement mode is AUTO, upon turning the power ON.
1 Return to the Measurement screen.
2 Press
on the control panel and change the measurement mode display to
AUTO.
Setting the Measuring Range
In this machine, the measuring range can be switched between 0-30 and 0-60.
Normally, the 0-30 range is used, but if the patient's intraocular pressure is high, switch
it to 0-60. The initial status of the measuring range is 0-30, upon turning the power ON.
1 Return to the Measurement screen.
2 Press
on the control panel and make the measuring range display 0-30.
33
BASIC OPERATIONS
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lignment and Measurement
It is recommended that you do intraocular pressure measure-
ments several times. Since the intraocular pressure varies by
heart beats and tears, often it is not possible to obtain exact
measurement values by measuring only once or twice.
MEMO
The alignment operation can be performed with the control lever.
Moving the machine body by the control lever
• When the machine body needs to be moved slightly back and forth or right and left,
move the control lever in each direction.
Operating the control lever
(back and forth, right and left)
Never insert your fingers under the measuring head.
∗ Inform the patient of this, too.
Careless insertion of fingers may cause injury by pinching.
CAUTION
• To move the measuring head vertically, turn the control lever right for raising and left
for lowering.
Operating the control lever
(up and down)
34
BASIC OPERATIONS
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1 Hold the control lever and pull the machine body towards the operator.
2 Move
the
control lever in directions as
needed and bring the patient’s eye to the center of the monitor screen.
3 Tell the patient to gaze at the yellow-green light.
4 Move the machine body toward the patient and focus the target eye. A vague
alignment dot becomes seen reflected in the cornea.
Alignment dot
Inner alignment mark
35
BASIC OPERATIONS
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5 Move the machine body in directions as needed in order to get the alignment dot
within the inner alignment mark on the monitor screen.
6 Holding the alignment dot within the inner alignment mark, slightly push the machine
body toward the patient.
When the machine body approaches the target eye, the alignment bar and “FOR-
WARD” display appear on the monitor screen.
Alignment bar
At this moment, be careful not to catch eyelashes and eyelids within the outer align-
ment mark so as to ensure correct measurements.
If the instrument is too close to the target eye, with regard to the alignment reference
position, “TOO CLOSE” is displayed on the monitor screen, and if it is too far, “FOR-
WARD” is displayed.
The alignment bar is displayed as a broken line when the instrument is close to the
target eye and as a solid line when it is far. Also, the alignment bar is shortened ac-
cordingly as it approaches the alignment reference position.
These factors are displayed only when the alignment dot is near the inner alignment
mark.
36
BASIC OPERATIONS
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Reference position
7 After the alignment bar is displayed, push the machine body out a little bit more.
When the alignment is adjusted, measurement is done automatically and the meas-
urement value is displayed on the monitor screen.
Too far
When the outer alignment mark is not displayed, measurement is not possible.
After measurement
Measurement can be done when the outer alignment mark is displayed after a few
• If measurement is not possible under the Auto mode, use
the Manual mode. Sometimes Auto mode is not available if
MEMO
the condition of the cornea is unfavorable.
37
BASIC OPERATIONS
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isplay of Measurement Values
Measurement values are displayed on the monitor screen for up to three measure-
ments. From the fourth measurement on, values of earlier measurements are deleted
in order.
Figure only
Figure in ( )
ERR
: Correct measurement
: Low in reliability
: Incorrect measurement
OVER
: Measurement value exceeding the measuring range
If the result is a figure in parentheses or ERR, do the measurement again, making
sure the patient does not blink and eyelashes do not get in the outer alignment mark.
If OVER is displayed, switch the measuring range to 0-60 and do the measurement
again.
MEASUREMENT UNDER MANUAL MODE
• Adjust the height of the automatic instrument table so that correct
measurement values can be obtained by allowing the patient to un-
dergo measurements in a comfortable position.
MEMO
• Make the patient relaxed so as to secure correct measurement val-
ues; make sure the patient does not hold his breath or remain tense.
etting the Measurement Mode
The initial status of the measurement mode is AUTO, upon turning the power ON.
1 Return to the Measurement screen.
2 Press
on the control panel and change the measurement mode display to
“MANU”.
etting the Measuring Range
See page 33.
lignment and Measurement
The alignment operation is controlled through the control lever.
For details about the adjustment of the machine body using the control lever, see
“Memo” on page 34.
38
BASIC OPERATIONS
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1 Hold the control lever and pull the machine body towards the operator.
2 Move
the
control lever in directions as
needed in order to bring the patient’s eye to the center of the monitor screen.
3 Tell the patient to gaze at the yellow-green light.
4 Move the machine body toward the patient and focus the target eye.
A vague alignment dot becomes seen reflected in the cornea.
5 Move the machine body in directions as needed in order to get the alignment dot
within the inner alignment mark on the monitor screen.
Inner alignment mark
Alignment dot
39
BASIC OPERATIONS
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6 Holding the alignment dot within the inner alignment mark, slightly push the machine
body toward the patient.
When the machine body approaches the target eye, the alignment bar and the
“FORWARD” display appear on the monitor screen.
Alignment bar
At this moment, be careful not to catch eyelashes and eyelids within the outer align-
ment mark so as to ensure correct measurements.
See descriptions about the alignment bar, “FORWARD” and “TOO CLOSE” on page
36.
7 Move the machine body back and forth, with the alignment bar as a reference, while
holding the alignment dot within the inner alignment mark.
When the alignment is adjusted, the shape of the inner alignment mark changes to a
.
Alignment is adjusted
Alignment is not adjusted
MEASUREMENT SWITCH
8 After the alignment is adjusted, press
.
Air is ejected for measurement, and the measurement value is displayed.
MEASUREMENT SWITCH
In Manual mode, measurement is done by pressing
even if the
alignment is not adjusted correctly. To ensure high-precision measurements, make
sure the alignment is adjusted correctly.
• If the shape of the inner alignment mark does not change to a
even after correctly adjusting the alignment, check again to see if
MEMO
the alignment is adjusted correctly. Sometimes the shape of the
inner alignment mark does not change to a
the cornea is unfavorable.
if the condition of
40
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DELETING MEASUREMENT VALUES
1 Press
on the control panel.
All the measurement values of the right and left eyes are deleted and the instrument
settings return to their status upon turning the power ON.
41
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VIDUAL OPERATIONS
HOW TO PRINT OUT MEASUREMENT VALUES
• To avoid printer problems due to paper jams, do not feed paper
if it is torn or creased.
• To avoid discoloring, particularly of the recording part, do not
store the printer paper in holders made of materials containing
plasticizers (ex., vinyl chloride).
MEMO
• To avoid coloring in the white part and discoloring in the re-
cording part, do not use bonds containing solvents. Use water
bonds.
• The printer paper is heat sensitive and cannot keep records for
long periods of time. Copy the records to other paper for stor-
age.
This machine can print out measurement values with the built-in printer.
1 Return to the Measurement screen.
2 Press
on the control panel.
Measurement values of the monitor screen are printed out.
Upon printing, the measured values are deleted automatically from the screen.
The ERR display is not printed. Also, printing can not be done when no measurement
values exist. When a red line appears in the printer paper, replace it. For details
about the replacement of paper, see “HOW TO SET PRINTER PAPER” on page 23.
Again, use the 58-mm wide TF50KS-E2C (Japan) paper for the printer.
When “PRINTER HEAD IS UP” is displayed, lower the paper retainer lever and press
again.
42
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3 Hold the paper and pull it diagonally to cut.
• To avoid paper jams, cut the paper carefully and evenly.
MEMO
HOW TO CORRECT MEASUREMENT VALUES
Never set the select switch for more than eight points to avoid
malfunctions.
MEMO
Though the machine is adjusted for displaying optimal measurement values, the values
can be corrected within a -4 ∼ +3mmHg range.
1 Make sure the power is OFF.
2 Open the control panel lid.
3 Using a screwdriver, turn the “ ” of the select switch.
Settings: 0: Base setting For shipment, the switch is set here.
1: +1mmHg
2: +2mmHg
3: +3mmHg
F: -1mmHg
E: -2mmHg
D: -3mmHg
C: -4mmHg
Base setting + 1mmHg
Base setting + 2mmHg
Base setting + 3mmHg
Base setting - 1mmHg
Base setting - 2mmHg
Base setting - 3mmHg
Base setting - 4mmHg
POWER SWITCH
4 Turn the
ON.
The measurement procedure is exactly the same as with the correction.
43
INDIVIDUAL OPERATIONS
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INPUT/OUTPUT VIA RS-232C
utput via RS-232C
This machine can output data via the RS-232C interface to a personal computer or
similar device.
1 Make sure the RS-232C OUT is connected.
For connection, see “HOW TO CONNECT EXTERNAL I/O TERMINALS” on page
14.
2 Check the settings for data communication.
For data communication, see “RS-232C Input/Output Settings” on page 18.
3 Obtain the measurements.
4 Press
on the control panel.
“RS-232C DATA OUT” is displayed on the screen and the data output is completed.
put via RS-232C
This machine can input data from a bar code reader and the like via the RS-232C in-
terface.
1 Make sure the RS-232C OUT is connected.
For connection, see “HOW TO CONNECT EXTERNAL I/O TERMINALS” on page
14.
2 Check the settings for data communication.
For data communication, see “RS-232C Input/Output Settings” on page 18.
3 Return to the Measurement screen.
4 Input the ID No. from the external device.
The inputted “ID No.” is displayed.
44
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ORE REQUESTING SERVICE
CHECKING OPERATIONS
ir Check
If a problem is suspected, do an air check.
If the result is “NG (+)” or “NG (-),” call your dealer.
For instructions on how to perform an air check, see “Air Check” on page 29.
hecking Operations
To avoid electric shocks, do not open the instrument.
Refer all servicing to qualified personnel.
WARNING
To avoid electric shocks, do not remove the covers from
the bottom and top surfaces, TV monitor, measuring unit,
etc.
WARNING
If a problem is suspected, perform checks following the Check List shown below. If the
condition is not improved by the suggested remedy or if it is not described in the list, call
your dealer.
CHECK LIST
Problem:
Monitor screen does not work.
Check point:
Power cable is not plugged into
receptacle.
Remedy:
Secure plug in power cable.
Page:
P.14
Power cable is not plugged into
machine body.
Plug power cable into machine
body.
P.14
Power save function is on.
Fuse is burned.
Return to normal status.
Replace fuse.
P.28
P.55
Monitor screen display is not
clear.
Monitor screen needs to be
readjusted.
Measuring window needs to be
cleaned.
Measuring window needs to be
cleaned.
Window in nozzle needs to be
cleaned.
Condition of patient's eye is
unfavorable.
Manual mode is on.
Measuring window is not clear
enough.
Adjust monitor screen.
P.54
P.52
P.52
P.53
Clean measuring window.
Clean measuring window.
Clean window in nozzle.
Measure under Manual mode.
Auto mode measurement is not
possible.
P.38
P.33
P.53
Set Auto mode.
Clean window in nozzle.
Measurement values have ( ) or
ERRs are displayed.
Paper comes out unprinted.
Paper does not come out.
Machine body does not move.
Printer paper winding is re-
versed.
Printer paper is used up.
Paper is jammed.
Clamping knob/fixing knob is
fastened.
Set printer paper correctly.
P.23,26
Supply printer paper.
Remove jammed paper.
Loosen up clamping knob/fixing
knob.
P.23, 56
P.55
P.8
45
BEFORE REQUESTING SERVICE
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ERENCE
OPTIONAL ACCESSORIES
utomatic instrument table AIT-20 and Table Board
Driven by electric power, it can change the height of the instrument as desired so as to
enable the patient to undergo measurement in a comfortable position.
Size...............................586(W) × 520(D)mm
Table height..................675-865mm (differs by destination)
Table size .....................450(W)x500(D)mm
SPECIFICATIONS & PERFORMANCE
Measuring range
0∼60mmHg
Working distance
Measurement display
Measurement recording
Alignment display
Monitor screen
11mm
Monitor screen (with average value)
Built-in printer (with average value)
Monitor screen
5in.
Power saving
Power save system
External I/O terminal
Power supply
RS232C
AC 100, 120, 220, 230 and 240V; 50/60Hz
Power consumption
Classification
80VA
IEC 601-1 CLASS I TYPE B
Operating temperature
Body movement, back & forth
Body movement, right & left
Body movement, up & down
Chinrest adjustment
Dimensions
10∼40°C
44mm
88mm
28mm
68mm
272(W)×505(D)×430∼458(H)mm
Weight
18kg
∗ For product improvements, specifications and appearance
may be changed without prior notice.
46
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RS-232C COMMUNICATION SPECIFICATIONS
onnector Types
Input terminal: DIN 8-pin (TSC0838-01-2051, Hoshiden)
Output terminal: DSUB 9-pin (DE-9S-N, JAE)
O Terminal Pin Arrangement
⋅ Output terminal: DSUB 9-pin (Pin Nos.1 and 9 are not used.)
Pin No.
Code
Description
Data receiving
Data transmission
Data terminal ready
Signal ground
Data set ready
Request transmission
Transmission ready
I/O
I
O
O
I/O
I
2
3
4
5
6
7
8
RD (RXD)
SD (TXD)
ER (DTR)
SG (GND)
DR (DSR)
RS (RTS)
CS (CTS)
O
I
Output terminal
Input terminal
⋅ Input terminal DIN 8-pin (Pin No.1 is not used.)
Pin No.
Code
Code Description
Data transmission
Data receiving
Request transmission
Transmission ready
Data set ready
I/O
2
3
4
5
6
7
8
SD (TXD)
RD (RXD)
RS (RTS)
CS (CTS)
DR (DSR)
SG (GND)
ER (DTR)
I
O
O
I
I
Signal ground
Data terminal ready
I/O
I
Input terminal
47
REFERENCE
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ransmission Formula
Mode 1, 2, 3
Synchronization
Communication speed
Start bit
Non-synchronous
2400/9600 bps
1 bit
Stop bit
2 bit
Data length
Parity
8 bit
None
Operating code
ASCI code
Mode 4, STD1 mode
Synchronization
Communication speed
Start bit
Non-synchronous
2400/9600 bps
1 bit
Stop bit
1 bit
Data length
Parity
8 bit
None
Operating code
ASCI code
ontents of Data Transmission
Communication format Mode 1, 3:
Model name, Type No.
Time/Date
R (right eye) average data
L (left eye) average data
10 byte
19 byte
9 byte
9 byte
∗ When the content is data with parentheses only, the average value is sent; when it is
OVER data only, OVER is sent; and when there is no data or ERRs only, a space is
sent.
(Example)
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Communication format Mode 2:
Model name, Type No.
Time/Date
10 byte
19 byte
Measurement value (right or left eye) average data 9 byte
∗ If ERRs only, transmission is not done.
(Example)
Communication format Mode 4, STD 1:
• Data Transmission
Model name, Type No.
Machine No.
15 byte
2 byte
ROM version
ID No.
Work ID No.
Machine work ID No.
Time/Date
10 byte
13 byte
13 byte
4 byte
20 byte
9 byte
R (right eye) average data
L (left eye) average data
9 byte
(Example)
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• Data Receiving
Patient ID data
13 byte
(Example)
or
or
etting RS-232C Communication Conditions
In the Menu screen, move the cursor using the
MEASUREMENT SWITCH
,
keys on the control panel, and
press
. Further, move the cursor to an item to be changed on
MEASUREMENT SWITCH
the screen shown below, and press
. [SET→∗∗∗∗] is displayed
. After changing, the
. After setting, move the cursor
at the bottom of the screen. Change the setting using
,
MEASUREMENT SWITCH
setting is registered by pressing
MEASUREMENT SWITCH
to EXIT and press
to return to the Menu screen. For further
details, see “RS-232C Input/Output Settings” on page 18.
Items of setting (5 items)
⋅ Machine No. (EQUIPMENT)
Set value: 0∼99. (For shipment, “1” is set.)
When more then one unit of inspection equipment
is installed in the same hospital, for example, data
can be controlled using these Machine Nos.
Set value: 1 or 2 (For shipment, “1” is set.)
1. For inputting patients' ID numbers.
⋅ Input ID mode (ID MODE)
2. For inputting the temporary ID numbers of new
patients.
⋅ Work ID No.
(WORK ID NO.)
Set value: 0∼9999 (For shipment, “0” is set.)
Desired serial numbers can be attached to measure-
ment results. The number is automatically added (1
at a time) each time the printing of data communica-
tion is performed.
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⋅ Communication format
(FORMAT)
Format: OFF, MODE 1, MODE 2, MODE 3, MODE 4,
STD 1 (For shipment, “OFF” is set.)
MODE 1:When
is pressed, communication is done
after printing.
MODE 2:Data communication is done every measure-
ment.
MODE 3:When
is pressed, communication is done
without printing.
MODE 4:When
is pressed, communication is done
without printing.
STD 1: When
is pressed, communication is done
after printing.
When Mode 1, 2 or 3 is set, data is transmitted automatically without confirmation
from the receiver side. When STD 1 is set, communication is controlled by RTS-CTS.
Under the RTS-CTS control, if no CS (CTS) signal is returned from the receiver side,
transmission can be canceled by pressing
. Also, if no DR (DSR) signal is re-
turned, it is recognized as a communication failure and FAIL is displayed on the
monitor screen.
⋅ Communication speed (SPEED) Baud rate: 2400, 9600 (bps) (For shipment,
2400bps is set.)
51
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NTENANCE AND CHECKING
ACCURACY MAINTENANCE
leaning the Measuring Window Glass
• To secure auto alignment and correct measurement values, clean the measuring
window glass after each day’s work.
• Clean the glass when “CLEAN THE MEASURING WINDOW GLASS” is displayed
on the monitor screen.
To clean the measuring window glass and the window
glass inside the measuring nozzle, use ethanol. Using
other chemicals may cause damage to the patient's eye
CAUTION
during measurement.
• Do not use tissues, as they may make the stain more notice-
able.
MEMO
• Do not use tweezers or gauze, as these may scratch the lens
and glass surfaces.
1 Prepare the ethanol.
2 Using a blower, remove dust and dirt from the glass surface.
3 Moisten the applicator with ethanol.
4 Wipe the glass surface lightly with the applicator, from the center outward.
5 Use a new applicator and wipe the glass surface in a similar manner; repeat this
Wiping the glass surface
several times.
To ensure thorough removal of grease from the window glass, be sure to replace the
applicator and use a new one for each of these repeated wiping operations.
6 Cleaning is completed when grease is thoroughly removed.
If stains cannot be removed easily, call your dealer.
When the measuring window glass becomes stained “CLEAN THE MEASURING
WINDOW GLASS” is displayed on the monitor screen.
52
MAINTENANCE AND CHECKING
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leaning the Window Glass inside the Nozzle
• When the window glass inside the nozzle becomes stained, it makes the fixation tar-
get unclear, causing errors in auto alignment and measurement values. If the fixa-
tion target is unclear or measurement values with parentheses are frequent, clean
the window glass inside the nozzle.
• Clean the glass when “CLEAN THE CHAMBER GLASS” is displayed on the monitor
screen.
To clean the measuring window glass and the window
glass inside the measuring nozzle, use ethanol. Using
other chemicals may cause damage to the patient's eye
CAUTION
during measurement.
• Do not apply unreasonable force to the measuring nozzle
while cleaning.
MEMO
• To avoid problems, do not leave the cotton fibers inside.
• Be sure to use only the attached applicator.
1 Prepare the ethanol.
2 Moisten the applicator with ethanol.
3 Insert the applicator into the nozzle, lightly touch the glass surface, and turn the ap-
plicator a few times.
Applicator (attached)
4 Use a new applicator and wipe the glass surface in a similar manner; repeat this a
few times .
The used applicator contains grease and it only scatters grease if used again; the light
transmittance is not improved at all. Be sure to replace the applicator and use a new
one for each of these repeated cleaning operations.
5 Cleaning is completed when the grease is thoroughly removed.
If stains cannot be removed easily, call your dealer. Press
confirm normal operation.
for a air check to
When the window glass inside the nozzle becomes stained, it makes the fixation tar-
get unclear and “CLEAN THE CHAMBER GLASS” is displayed on the monitor screen.
53
MAINTENANCE AND CHECKING
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aily Maintenance
• This machine must be kept free of dust; apply the measuring window cap and dust
cover when not in use.
POWER SWITCH
• When not in use, turn the
OFF.
rdering Consumable Supplies
• When placing an order for consumable supplies, tell your dealer the product name,
part code and quantity.
Name
Code
Name
Applicator
Printer paper
Fuse 125V-3A-M
Fuse 250V-1.5A-M
Code
Chinrest pad
Silicone cloth
Dust cover
40310 4082
31087 2007
42360 9002
42364 4021
41601 8606
44800 4001
41801 5012
42364 5313
Chinrest pad pin
djusting the Monitor Screen
• Although the machine is adjusted for optimal screen conditions before shipment, a
screen readjustment may be required due to vibrations during transportation.
• To adjust the contrast and brightness, move the BRIGHT/CONT. knobs after turning
them all the way to the right, as viewed from the operator.
54
MAINTENANCE AND CHECKING
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aper Jam in Printer
• If paper is jammed inside the printer, printing is not complete.
MEMO
Attempts to forcibly use the printer may lead to problems.
• Remove the printer cover, release the paper retainer lever and remove the jammed
paper.
eplacing the Fuse
To avoid electrical shock and fire, unplug the power cable
before removing the fuse cover. Additionally, be sure to
replace the fuse cover before plugging in the power cable.
WARNING
WARNING
Use only the attached fuses. Using other fuses may cause
a fire.
1 Make sure the power is OFF and the power cables are unplugged.
2 Press the fuse holder with a screwdriver and turn it counterclockwise.
The fuse holder can be taken out.
Removing the Fuse Holder
55
MAINTENANCE AND CHECKING
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3 Replace the fuse with the attached fuse.
Replacing the Fuse
4 Press the fuse holder with a screwdriver and turn it clockwise.
The fuse holder is now reset.
Setting the Fuse Holder
SPECIAL NOTES ON CLEANING
leaning the Outer Cover
Do not use or apply any spray-typed cleaner near the in-
strument. If a drop of cleaner remains inside the measur-
ing nozzle, the patient’s eye may be injured during meas-
urement.
CAUTION
To avoid discoloring/deterioration of the plastic components, do
not use volatile solvents (benzine, thinner, gasoline, etc.).
MEMO
• When the outer cover, operation panel and the like become stained, clean them with
a dry cloth. If the stain is extreme, a neutral detergent for tableware may be used by
diluting it with tepid water. Soak the cloth in the solution, squeeze it out, and then
use if to wipe off stains.
56
MAINTENANCE AND CHECKING
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When calling please give us the following infor-
mation about your unit:
⋅ Machine type: CT-80
⋅ Manufacturing No. (Shown on the rating plate on
the right side of the base.)
⋅ Period of Usage (Please give us the date of pur-
chase).
⋅ Description of Problem (as detailed as possible).
COMPUTERIZED TONOMETER (CT-80)
INSTRUCTION MANUAL
Version of 1999 (9906-100LW0)
Date of issue: 1st, June, 1999
Published by
75-1 Hasunuma-cho, Itabashi-ku, Tokyo, 174-8580 Japan.
© 1999 TOPCON CORPORATION
ALL RIGHTS RESERVED
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COMPUTERIZED TONOMETER
CT-80
TOPCON AMERICA CORPORATION
CORPORATE OFFICE:37 West Century Road, Paramus, New Jersey 07652, U.S.A. Phone: 201-261-9450 Fax: 201-387-2710 www.topcon.com
TOPCON CANADA INC.
110 Provencher Avenue, Boisbriand, QC J7G 1N1 CANADA Phone: 514-430-7771 Fax: 514-430-6457
TOPCON OMNI SYSTEMS, INC.
Valley Forge Business Center, 2430 Blvd. of the Generals, Norristown, PA 19403, U.S.A Phone: 610-630-9200 Fax: 610-630-6428
TOPCON EUROPE B.V.
(European Representative)
ESSE Baan 11, 2908 LJ Capelle a/d IJssel, THE NETHERLANDS. Phone: 010-4585077 Fax: 010-4585045 www.topconeurope.com
TOPCON DEUTSCHLAND G.m.b.H.
Halskestrasse 7 47877 Willich, GERMANY. Phone: 02154-9290 Fax: 02154-929111
TOPCON ESPAÑA S.A.
HEAD OFFICE:Frederic Mompou 5, 08960, Sant Just Desvern Barcelona, SPAIN Phone: 93-4734057 Fax: 93-4191532
MADRID OFFICE:Avenida Ciudad de Barcelona 81, 1 Planta 28007, Madrid, SPAIN Phone: 91-5524160 Fax: 91-5524161
TOPCON S.A.R.L.
HEAD OFFICE:104/106, Rue Rivay, 92300, Levallois-Perret, FRANCE. Phone: 014106-9494 Fax: 014739-0251
LYON OFFICE:138, Avenue du 8 Mai 1945, 69100 Villeurbanne, FRANCE Phone: 0478688237 Fax: 0478681902
TOPCON SCANDINAVIA A. B.
Industrivägen 4 P.O.Box 2140 43302 Sävedalen SWEDEN Phone: 031-261250 Fax: 031-268607
TOPCON (GREAT BRITAIN) LTD.
Topcon House,Kennet Side,Bone Lane,Newbury,Berkshire RG14 5PX United Kingdom Phone:01635-551120 Fax:01635-551170
TOPCON SINGAPORE PTE.LTD.
Alexandra Distripark Block 4, #05-15, Pasir Panjang Road, Singapore 118491 Phone: 2780222 Fax: 2733540 web.singnet.com.sg/˜topconts
TOPCON INSTRUMENTS (MALAYSIA) SDN. BHD.
Lot 226 Jalan Negara 2, Pusat Bandar Taman Melawati, Taman Melawati 53100 Kuala Lumpur, MALAYSIA. Phone: 03-4079801 Fax: 03-4079796
TOPCON INSTRUMENTS (THAILAND) CO., LTD.
77/162 Sinn Sathorn Tower, 37th Fl.,Krungdhonburi Rd.,Klongtonsai, Klongsarn, Bangkok 10600 Phone: 662-440-1152~7 Fax: 662-440-1158
TOPCON AUSTRALIA PTY.LTD.
408 Victoria Road, Gladesville, NSW 2111, AUSTRALIA Phone: 02-9817-4666 Fax: 02-9817-4654 www.topcon.com.au
TOPCON KOREA CORPORATION
Hyobong Bldg., 1-1306, Seocho-Dong, Seocho-Gu, Seoul, KOREA. Phone: 02-3482-9231 Fax: 02-3481-1928 www.topcon.co.kr
TOPCON OPTICAL (H.K.) LTD.
2/F Meeco Industrial Bldg., No.53-55 Au Pui Wan Street, Fo Tan Road, Shatin, N.T., Hong Kong
TOPCON CORPORATION BEIJING OFFICE
Room No. 962 Poly Plaza Building, 14 Dongzhimen Nandajie Dongcheng District, Beijing, 100027, CHINA Phone: 10-6501-4191~2 Fax: 10-6501-4190
TOPCON CORPORATION BEIRUT OFFICE
P.O.BOX 70-1002 Antelias, BEIRUT-LEBANON Phone: 961-4-523525/523526 Fax: 961-4-521119
TOPCON CORPORATION DUBAI OFFICE
Office No.102 KHALAF RASHD AL NAYLI BLDG., Deira, Dubai, UAE Phone: 971-4-696511 Fax: 971-4-695272
TOPCON CORPORATION
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Phone:3-3558-2520 Fax:3-3960-4214
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