Casio QA-300 User manual

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-0A-300

Operating

Instructions

Bedienungsanleitung

Instructions

Instrucciones

operacion

Istruzioni

per

l’uso

Contents

General:

Guide:

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Time

Functions

..........

sca

senpnseseensee

dibs

rernccscsscesdbeser

cesses

Using

the

Alarm

and

Hourly

Time

Signa

sehigadeeysauiad

uate

,cakies

cava

deuGarioasuonesess

Using

the

Timer

SaSeges

Suess

evhobcaseuedareodcevndeveseoessVeeiscencesbaepeawssaatseress,

Correcting

input

Errors

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Power

Supply

0.2.0...

c-ceeceeceaserecesesseerescnenssrcurenceenrnsccurnsscesscusncecrersassenee

Important

Precautions!

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Specilications:

oi.

ssccses

cscs

Pesos

Soc

add

See

okie

int

date

vouvenestereouts

Caiculation

Examples

............cccccccesececececerscenrentsssseccscensssnssresscesssoseseseesns

DOB

SON

RON

1/General

Guide

Main

Key

Functions

Brow

Hour/Month

Key

10--

WMS

MIR@

Minute/Date

Key

Time

Key

aren}

Alarm

Set

Key

és

Timer

Key

Decimal

Point

/AM-PM

Key

(=)

Equals/12-24

Hour

Key

HOW@

Arithmetic

Keys

(x)

Alarm

ON/OFF

Key

©)

Hourly

Time

Signal

ON/OFF

Key

Reset

Button

(Inside

Battery

Compartment)

Other

key

operations

are

shown

under

“Calculation

Exampies”.

About

the

Display

The

display

shows

the

number

you

input,

calculation

results,

and

various

indicators

showing

the

status

the

calculator.

ase

yore

Calculation

display

3digit

separator.

This

symbol

also

used

indicate

minutes

time

display.

"':

Seconds

indicator

(time

display)

—:

Negative

value

indicator

Independent

memory

indicator

Error

indicator

Constant

calculation

indicator

Equat

indicator

MEE:

Arithmetic

operation

indicators

Time

displays

hour

seconds

piece

month

day

minutes

hour

minute

seconds

TIMER:

Indicates

that

the

countdown

timer

activated.

{t@¥)

Indicates

that

the

calculator

will

beep

the

preset

alarm

time.

Indicates

that

the

calculator

will

beep

the

hour.

—5—

2/Time

Functions

sure

sat

the

correct

time

and

daie

before

using

this

calculator

for

the

first

time.

M@To

Set

the

Current

Time

and

Date

Example:

set

10:25

PM,

June

15.

Press

Gwp

display

the

current

time

(Cie)

eae

ete

dar

Hold

down

for

about

two

seconds

and

the

(+f

Ge)

hands

the

analog

timepiece

start

flash

the

display,

indicating

that

you

can

set

the

time

C.J)

sail

and

date.

fats

pesca

nso

orn

POOWS

for

Cee

‘a

rin

St.

eres

res)

{

mean

the

current

setting

changes

the

opposite

one.

ekeeping

format.

«Each

time

you

press

You

can

also

use

switch

between

12-hour

and

24-hour

tim

Each

press

changes

the

opposite

format.

OOD

OOO

00D

Ona

lime

signal

from

radio

TV,

press

start

timekeeping

from

the

time

you

Set.

Wher

you

dc.

the

seconds

count

reset

00.

Gu)

§+

Even

you

plan

only

reset

the

seconds

count

00,

sure

input

the

hour

and

minutes

first.

*lf

you

want

clear

your

input

during

the

above

procedure,

press

(C).

you

generate

error

(“E”

indicator)

the

above

procedure

(by

inputting

for

the

minutes,

for

example),

press

(C)

clear

it.

interrupt

the

time

and

date

setting

procedure

any

point,

press

Note

that

the

clock

designed

change

from

February

March

without

mak-

ing

allowance

for

leap

year.

sure

correct

the

date

during

leap

years.

*The

anaiog

timepiece

automatically

synchronized

with

the

digital

timepiece.

You

not

need

make

any

settings

for

the

analog

timepiece.

You

can

select

whether

not

display

second

hand

the

analog

timepiece.

any

point

between

steps

and

the

above

procedure,

press

the

64)

key

switch

-between

display

and

non-display

the

second

hand.

;

Automatic

Timekeeping

Mode

Display

you

not

perform

any

operation

the

calculator

for

about

six

minutes,

automati-

cally

switches

display

the

current

time.

Note

that

calculation

memory

contents

are

retained

when

this

happens.

analy

arm

and

Hourly

Time

Signal

sounds

for

about

seconds

each

date

the

prese

you

can

stop

pressing

any

key.

With

the

3/Using

the

After

you

set

alarm,

buzze

time.

Once

the

alarm

starts

soun

hourly

time

signal,

the

calculator

beeps

twice

the

top

each

hour.

Does

not

Does

not

Sounds

Hourly

Time

Does

not

Does

not

[sounes

sounes

Signal

sound

WTo

Set

the

Alarm

Time

Example:

set

7:30

AM.

Press

Gam)

display

the

current

alarm

setting.

Pad

O08

this

time

the

indicator

“AL”

appears

indicate

that

alarm

time

set,

and

the

alarm

automatically

switched

{indicated

tem)

the

dispiay.

elf

you

want

clear

your

input

during

the

above

procedure,

press

(©).

you

generate

error

(“E”

indicator)

the

above

procedure

(by

inputting

for

the

minutes,

for

example),

press

(©)

clear

it.

Switch

the

Alarm

and

Off

While

the

current

alarm

time

setting

displayed

(press

Gam),

press

switch

the

alarm

and

off.

The

alarm

does

not

sound

the

preset

time

when

switched

off.

Switch

the

Hourly

Time

Signal

and

Off

While

the

current

alarm

time

setting

displayed

(press

(am),

press

)

switch

the

hourly

time

signal

and

off.

The

indicator

“”

appears

indicate

that

the

hourly

time

signal

set.

MiTo

Test

the

Alarm

While

the

current

alarm

time

setting

displayed

(press

Gd),

hold

down

(+)

for

about

two

seconds

sound

the

alarm.

Note

elf

than

one

alarm

set

sound

the

same

time,

they

sound

the

sequence:

timer,

alarm,

hourly

time

signal,

test

alarm.

Foie

pemaangeries

rae

)

4/Using

the

Timer

You

can

set

countdown

timer

with

Starting

time

hours

and

minutes.

When

the

countdown

reaches

zero,

electronic

buzzer

sounds

for

about

seconds.

Set

the

Starting

Time

and

Start

Operation

Example:

set

hour

minutes.

“Cy

Cee

Press

enter

the

Timer

Mode.

“1d

amnnr

“me

anne

200

You

can

input

value

99,

the

error

pressing

(C).

you

want

set

minutes

only,

skip

this

step.

greater

value

produces

error.

You

can

clear

hours

and

minutes.

Press

start

the

countdown

operation.

eal

LILI

RALILIL

you

want

clear

your

input

during

the

above

prricegace,

pene

IG,

ds:

¢To

interrupt

ongoing

countdown

operation,

press

().

00:00'00".

input

only

minutes

the

above

procedure

—

eas

nurs

pal

cag

meting

while

the

timer

Timekeeping

Mode

‘nee

ihe

down),

may

affect

the

countdown

operation

few

seconds.

—12—

—

MTo

Test

the

Timer

Alarm

While

the

current

alarm

time

setting

is di

displa

two

seconds

sound

the

timer

eer

abot

_5/Correcting

Input

Errors

you

input

the

wrong

numb

(or

hour}

when

inputting

value

;

acct

press

()

clear

the

wrong

input

cone

input

the

wrong

minutes

seconds

for

time

calculations,

re-in

ete

sure

input

feading

zeros

that

ali

input

two

digits

eal

you

press

the

wrong

arithmetic

operation

key

(C4)

O,&).8

{

correct

key

before

inputting

anything

else.

Clearing

Calculations

*To

clear

the

calculator

com

(

pletely

(except

independent

*To

clear

the

independent

memory

only,

press

)

twice

epee

Error

Indicator

aegeor

error

indicator

“E”

appears

the

display

whenever

any

the

follawing

condi-

Whenever

the

integer

part

(the

value

the

left

the

decimal

paint)

calculation’s

intermediate

result

final

result

becomes

greater

than

digits.

Along

with

the

error

indicator,

approximation

the

value

appears

the

display.

The

following

table

illustrates

the

value

that

appears

when

you

attempt

perform

the

calculation:

123,456

741,852

91,586,080,512

Whenever

the

integer

part

the

value

stored

independent

memory

grand

tota!

memory

greater

than

digits.

this

time,

the

display

shows

“0.",

but

the

memory

retains

the

value

had

before

the

overflow

occurred.

Whenever

attempt

made

perform

division

zero

(as

6@)0).

Whenever

the

profit

mark-up

calculation

100%,

6/Power

Supply

This

unit

powered

single

CR2032

tithium

battery.

Battery

Replacement

the

display

becomes

dim

the

need

replace

the

lithium

battery.

ock

not

keeping

time

correctly,

you

probably

aren

eemnnell

iar

dees

ened

—15—

MTo

Replace

the

Battery

Loosen

the

screw

the

back

the

unit

and

“remove

the

battery

compartment

cover.

Remove

the old

battery.

Wipe

off

the

surface

the

new

battery

with

seit

cloth

and

insert

into

the

battery

case

_50

that

its

positive

side

facing

up (s

can see

it).

aie

Press

the

RESET

button

with

thi

thin,

sities

pointed

Replace

the

battery

compartment

cover

and

secure

place

with

the

screw,

Resetting

the

calculator

automatically

changes

the

current

time

12:00

and

clears

the

memory.

;

Replace

the

battery

least

once

every

five

years,

regardless

how

much

you

use

the

cal-

culator

during

that

time.

ante

The

battery

installed

the

factory

discharges

during

shipment

and

storage.

You

may

need

replace

the

original

battery

sooner

than

three

years

after

you

purchase

the

calculator.

important

Battery

Precautions

Incorrectly

using

batteries

can

cause

them

burst

leak,

possibly

damaging

the

interior

the

unit.

Note

the

following

precautions:

sure

that

the

positive

side

the

battery

facing

(so

you

can

see

it)

when

you

install

the

calculator.

Never

leave

daad

battery

the

battery

compartment.

dead

battery

can

leak

and

damage

the

calculator

lett

the

battery

compartment

for

long

periods.

Remove

the

battery

you

not

plan

use

the

unit

for

jong

periods.

Never

try

recharge

the

battery

supplied

with

the

unit.

Never

expose

batteries

direct

flame

intense

heat.

Keep

batteries

out

the

reach

smail

children.

swallowed,

consult

with

physician

immediately.

—17—

prepa

the

RESET

Button

the

RESET

button

located

insid

mamas

Wie

ied

battery

compartment

reset

the

calculator's

you

change

batteries.

v¥henever

the

calculator

Operation

laden

shh

comes

reilly

{which

happens

exposed

Note

that

the

calculator

initiali

tial

Sees

itialized

described

below

whenever

you

perform

the

reset

Clock:

12:00

1-1

(January

Analog

Second

Hand:

Not

displayed

Alarm

time:

12-00

’

Alarm:

Off

Hourly

time

signal:

Off’

Timer:

00:00'00"

Pressing

the

RESET

button

picts

eletes

all

memory

contents!

sure

not

press

un-

important!

When

you

press

the

RESET

ress

ulton

with

pencil

oth

i j

Old

Pressing

too

Strongly.

Otherwise

you

might

nee

erciee

7/Important

Precautions!

Never

allow

this

calculator

exposed

direct

flame.

Avoid

use

and

storage

under

temperatures

extremes.

not

place

the

calculator

direct

sunlight,

near

windows,

near

heater,

anywhere

else

where

subjected

high

heat.

Heat

can

lead

discoloration

warping

the

case,

and

can

even

damage

internal

circuitry.

Under

very

iow

temperatures,

display

response

may

slow

down

fail

entirely.

This

condition

temporary

and

operation

should

return

under

normal

temperatures.

Avoid

use

and

storage

areas

subject

excessive

moisture,

dirt,

and

dust.

Direct

contact

with

liquids

and

dust

can

damage

internal

circuitry.

Avoid

dropping

the

calculator

and

otherwise

subjecting

severe

impact.

Never

bend

twist

the

case.

Never

try

take

the

calculator

apart.

not

use

pen,

pencil,

other

sharp

object

press

keys.

clean

the

exterior

the

calculator,

wipe

off

with

soft

cloth

dampened

weak

solution

mild

neutral

detergent

and

water.

sure

wring

out

any

excess

moisture

from

the

cloth

betore

wiping

off

the

calculator.

Never

use

benzene,

thinner,

any

other

volatile

agent

clean

the

calculator.

Doing

can

wipe

off

the

figures

printed

the

case

otherwise

damage

its

finish.

TERN

try

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