Nikon OT-8A User manual

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A

UTO

OPTESTER

OT-8A

Instructions

NIKON

CORPORATION

TOKYO,

JAPAN

Cautions

•

Lens

(1)

Take

care

not

to

leave

dust

or

fingerprint

on

the

lens

surface.

(2)

Use

a

soft

lens

brush

to

remove

dust.

(3)

To

remove

dirt

or

fingerprints,

use

a

well-washed

soft

cotton

cloth

or

lens

cleaning

paper

moistened

with

a

small

amount

of

alcohol

or

lens

cleaning

liquid.

Do

not

rub

the

lens

too

hard.

(4)

Do

not

use

a

handkerchief

or

absorbent

cotton

wool

for

cleaning

the

lens.

•

Power

source

(1)

If

you

turn

OFF

the

power

switch

on

the

OT-8A

control

panel,

wait

for

at

least

5

seconds

before

turning

it

ON

again.

If

the

plug

of

the

power

supply

cord

is

disconnected

while

the

power

switch

is

ON,

wait

for

at

least

5

seconds

before

connecting

the

plug

again.

(2)

Set

the

power

voltage

to

be

used

into

the

voltage

indicator

window

of

the

fuse

holder

at

the

rear

of

the

control

panel.

(3)

Take

the

position

of

the

plug

to

put

in

or

put

out

the

power

source

cable.

(4)

The

symbols

indicated

on

the

power

supply

unit

have

the

following

meaning:

POWER

switch

Power

input

panel

o

OFF

(disconnection

from

the

power)

1

ON

(connection

to

the

power)

~

Alternating

current

(AC)

A

See

"Cautions"

and

"Instructions"

•B

Fuse

ft

B-type

equipment

•

Storage

and

room

conditions

(1)

The

OT-8A

control

panel

has

a

vent

in

the

case

to

keep

the

internal

parts

cool.

Do

not

block

the

vent.

(2)

Do

not

store

or

use

the

instrument

in

direct

sunlight

or

near

heating

equipment.

(3)

Do

not

store

or

use

the

instrument

in

a

damp

or

dusty

place.

(4)

This

instrument

is

a

precision

instrument.

Do

not

drop

or

jar

it.

Do

not

store

or

use

the

instrument

where

it

may

be

jarred

or

shaken.

(5)

Danger:

Take

care

not

to

let

any

liquid

(such

as

water)

or

metal

parts

into

this

instrument.

(6)

Do

not

place

anything

heavy

on

the

OT-8A

control

panel

during

use

or

storage.

i

(7)

Use

of

the

instrument

next

to

a

radio

or

television

may

cause

noise

on

the

radio

or

television.

If

a

device

generates

a

strong

magnetic

field

nearby,

it

may

cause

error

in

the

instrument.

(8)

Do

not

disassemble

to

the

instrument.

If

the

instrument

is

disassembled,

no

warranty

will

be

provided.

•

Others

Use

a

soft

cloth

moistened

with

water

or

detergent

liquid.

Do

not

use

benzine

or

thinner

or

other

volatile

chemicals,

because

the

instrument

cover

may

be

dissolved

or

change

color.

Do

not

spray

insecticide

over

the

instrument.

•

If

the

instrument

becomes

faulty

When

the

instrument

becomes

faulty,

overheats,

or

its

function

is

abnormal,

disconnect

the

plug

of

the

power

supply

cord.

Then

contact

the

Nikon

service

personnel.

Equipment

Supplied

1)

OT-8A

lens

chamber

x

1

2)

OT-8A

control

panel

x

1

3)

Near

point

chart

holder

x

1

4)

Near

point

chart

scale

x

1

5)

Near

point

chart

x

1

6)

Control

panel

fuse

x

2

7)

Printing

form

x

5

8)

Vinyl

cover

for

lens

chamber

x

1

9)

}

Incorporated

in

OS-300

when

this

auto

optester

is

to

be

purchased

together

with

connection

cord

the

opthalmic

console

10)

Connection

cord

lens

chamber

J

system

OS-300.

ii

Table

of

Contents

1.

Names

of

Parts

.

3

1-1.

Lens

Chamber.

3

1-

2.

Control

Panel

.

4

2.

Setting

.

5

2-

1

.

Installing

the

Lens

Chamber.

5

2-2.

Connecting

the

Cord

.

5

2-3.

Mounting

the

Near

Point

Chart.

6

2-4.

Leveling

.

6

2-5.

Turn

on

the

POWER

Switch.

6

2-

6.

Replacing

the

Paper

Roll.

7

3.

Adjusting

the

Comeal

Distance.

9

3-

1

.

Adjusting

the

Comeal

Distance

by

Normal

Measurement.

9

3-

2.

Diopter

Conversion

Table.

10

4.

How

to

Use

Keys

.

13

4-

1

.

Lens

Chamber

Display

and

Control

Panel

Keyboard

.

13

4-2.

Data

Input

Example

.

15

4-3.

If

an

Error

is

Displayed.

16

4-4.

If

Wrong

Data

is

Entered

.

17

4-5.

Functions

of

Each

Key.

18

(1)

Identification

(ID)

number

.

18

(2)

Entering

the

visual

acuity

(VA)

.

19

(3)

Calling

data

from

another

unit

.

20

(4)

Selecting

the

right

or

left

eye

.

22

(5)

PD

.

24

(6)

SPH,

CYL

and

AX

.

26

(7)

Auxilliary

lens

.

28

(8)

Using

the

cross

cylinder

.

31

(9)

Using

the

prism

.

35

(10)

Using

ADD

.

38

(11)

Using

data

memory

.

40

(12)

Changing

the

step

.

41

(13)

Converting

the

cylindrical

power

.

43

(14)

Converting

the

prism

.

44

(15)

Printing

.

45

(16)

Erasing

data

.

46

5.

Printout

Example.

47

6.

Multi

Remote

Control

.

49

6-1.

Types

of

Multi

Remote

Controls

.

49

6-2.

Operating

the

CHART

and

PRINT

Keys

.

49

6-

3.

Operating

the

PROGRAM

Keys.

51

7.

IC

Card

Reader/Writer

.

55

7-

1

.

Reading

the

IC

Card.

55

7-2.

Writing

Data

into

the

IC

Card

.

56

7-

3.

Types

of

IC

Card

Built-in

Data

.

56

8.

Maintenance.

59

8-

1

.

Replacing

the

Fuse

.

59

8-2.

Adjusting

the

LC

Display

Contrast

and

Buzzer

Volume

.

59

9.

Specifications

.

61

2

1

.

Names

of

Parts

1-1.

Lens

Chamber

Figure

1-1

(1)

Pole

arm

mounting

port

(=>

P.5)

(9)

Forehead

rest

adjustment

knob

(2)

Stopper

screw

hole

(=>

P.5)

(10)

Reading

rod

mounting

port

(=>

P.6)

(3)

Connection

cord

hole

(=>

P.5)

(11)

Lens

chamber

display

(=>

P.

13)

(4)

Connection

cord

connector

(=>

P.5)

(12)

Comeal

distance

window

(=>

P.9)

(5)

Arm

fixing

knob

(=>

P.5)

(13)

Sight

aperture

(6)

Cover

fixing

screw

hole

(=>

P.5)

(14)

Remote

control

transmission

window

(7)

Hanger

cover

(=>

P.5)

(15)

Level

(=»

P.6)

(8)

Leveling

knob

(=>

P.6)

3

1.

Names

of

Parts

1-2.

Control

Panel

(1)

Keyboard

(=>

P.14)

(9)

Buzzer

volume

adjustment

knob

(=*

P-5)

*(2)

Remote

control

receiving

window

(=>

P.47)

(10)

Liquid

crystal

contrast

adjustment

knob

(=>

P.59)

*(3)

Remote

control

rest

(ID

External

interface

connector

1

*(4)

Rear

remote

control

receiving

window

(=>

P.47)

(12)

External

interface

connector

2

(5)

IC

card

reader/writer

(optional

accessory)

mounting

part

(=>

P.55)

(13)

Connector

for

lens

chamber

connection

cord

(=>

P.5)

(6)

Printer

cover

(14)

Fuse

holder

(=>

P.59)

(7)

Printing

form

outlet

(=>

P.7)

(15)

Power

cord

socket

(=>

P.5)

(8)

LC

display

(16)

POWER

switch

(*

Remote

control

is

optional

accessory)

4

2

.

Setting

2-1.

Installing

the

Lens

Chamber

(1)

Insert

the

end

of

the

pole

arm

into

the

OT-8A

pole

arm

mounting

opening.

(2)

Rotate

the

OT-8A

lens

chamber

90°

against

the

pole

arm;

the

stopper

screw

hole

appears

on

the

bottom

of

the

OT-8A

hanger.

(3)

Fix

the

stopper

screw

into

a

hole

threads

of

the

pole

arm

from

this

hole.

The

OT-8A

is

then

fixed.

Note:

Do

not

forget

to

tighten

the

stopper

screw.

Pole

arm

2-2.

Connecting

the

Cord

(1)

Remove

the

OT-8A

arm

fixing

knob.

Remove

two

fixing

screws,

then

remove

the

lens

chamber

hanger

cover.

(2)

Fix

the

connector

for

lens

chamber

connection

cord

to

the

lens

chamber

and

control

panel.

(3)

Tighten

setscrew

(standard

&

Phillips

screw)

with

a

screwdriver

to

secure

the

connector

firmly.

The

connector

is

then

connected.

(4)

Mount

the

lens

chamber

hanger

cover.

Tighten

two

cover

setscrews

of

the

cover.

(5)

Tighten

the

arm

fixing

knob.

(6)

Connect

the

power

cord

socket

of

the

control

panel

to

the

AC

power

outlet

with

the

accessory

power

cord.

5

2

.

Setting

2-3.

Mounting

the

Near

Point

Chart

(1)

Insert

the

end

of

the

scale

rod

into

the

mounting

portion

in

the

center

of

the

lens

chamber.

Note:

Insert

the

scale

rod

from

the

oblique-upper

side.

(2)

Insert

the

chart

holder

from

another

end

of

the

scale

rod.

(3)

Secure

the

chart

to

the

holder

at

two

points

with

screws.

[Either

keep

the

scale

standing

or

remove

it,

in

cases

other

than

near

view

measurement.]

2-4.

Leveling

Turn

the

leveling

knob

to

set

the

lens

chamber

in

the

level

state

while

observing

the

level

of

the

OT-8A

lens

chamber

with

the

mirror

at

the

upper

side.

2-5.

Turn

on

the

POWER

Switch

Turn

on

the

power

switch

(press

the

switch

indicator,

the

lens

chamber

enters

the

initial

state

as

shown

below

in

a

few

seconds,

enabling

key

operation.

r

o

^

R

L

SPH

CYL

n

n

n

L'.

u

u

n

n

n

uu

u

t

O

n

t

u

u

AUX

X.

C

J

Figure

2-2

6

2

.

Setting

2-6.

Replacing

the

Paper

Roll

(1)

Insert

the

paper

(correct

side

up)

end

deep

inside

from

the

paper

inlet.

(2)

Keep

the

power

supply

ON,

then

press

the

f

|

key

of

the

control

panel.

The

paper

is

further

fed.

(3)

Pass

the

white

rod

through

the

paper

roll

and

fit

both

the

rod’s

ends

into

the

slots.

Notes:

1)

Feed

the

paper

before

fitting

the

paper

roll.

If

the

paper

roll

is

first

fit,

paper

feed

cannot

be

made.

2)

Do

not

insert

the

paper

upside

down.

3)

If

the

PRINT

key

is

pressed

before

paper

insertion

is

complete,

the

printer

prints

without

paper

and

the

print

head

may

be

damaged.

4)

Do

not

allow

foreign

matter

into

the

printer

or

the

paper

may

jam.

5)

Store

paper

away

from

heat

and

humidity.

6)

In

any

case,

if

you

are

going

to

store

the

data

for

a

long

time,

make

a

photo-copy

and

store

that.

The

printing

from

this

unit

might

deteriorate

over

time.

7