Casio Memory-8R User manual

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ELECTRONIC

CALCULATOR

memory

INSTRUCTION

MANUAL

HGHCXiAim

isuAamr

■

4^*'*“"

1+4

'Mi

(Y-811)

INTRODUCTION

Dear

customer.

Congratulations

your

purchase

this

pocketabje,

persona)

electronic

calculator

with

one

memory.

Although

extremely

compact,

carries

all

the

capabilities

you

could

require

for

daily

calculation

needs.8

digit

calculating

capacity,

automatic

accumulation

results

four

functions,

full

floating

decimal

system

with

underflow,

constants

for

x/-=-

true

credit

balance,

and

convenient

key

for

mark-up/discounts.

utilize

the

full

features

this

calculator,

special

training

required

but

suggest

you

take

few

minutes

with

this

instruction

manual

become

familiar

with

its

many

abilities.

POWER

SWITCH:

Move

the

switch

the

right

start

calculation.

READ-OUT

Shows

each

entry

and

result

through

8-digit

Digitrou

tube

panel.

Suppresses

unnecessary

0's

(zeroes).

NUMERAL/DECIMAL

POINT

KEYp]

j?]

Enters

numerals.

For

decimal

places

use

the

key

its

logical

sequence.

FUNCTION

COMMAND

KEYS

Press

the

numeral

and-

(unction

command

keys

the

same

logical

sequence

the

formula.

full

floating

decimal

and

underflow

system

work

ail

calculations

protect

significant

digits.

EQUAL

AUTOMATIC

ACCUMULATION

KEY

Obtains

answer

and

automatically

accumulates

into

the

memory

positively.

PERCENT

KEY

Performs

percentage

calculations,

including

mark-ups

and

discounts.

MEMORY

RECALL

KEY

Recalls

contents

the

memory

without

clearing

the

same.

CLEAR

KEY

Clears

display

for

correction.

When

depressed

after

function

command,

clears

the

entire

machine

except

the

memory.

correct

the

function

commands,

depress

the

appropriate

function

key

(

,0,

Qor

}

successively.

ALL

CLEAR

KEY

Clears

the

entire

machine

including

memory,

and

releases

overflow

check.

There

need

depress

the

fj3

key

prior

starting

each

new

calculation.

B/DISPOSABLE

DRY

BATTERY

OPERATION

The

calculator

operates

either

dry

batteries

with

the

use

the

ADAPTOR.

DRY

BATTERY

OPERATION

With

two

size

manganese

dry

batteries

(SUM-3)

operates

for

approximately9.5

hours

continuously.

Even

when

battery

power

decreases,

the

display

will

merely

darken

but

cause

miscalculation.

When

you

have

finished

your

calculation,

sure

switch

off

the

power

switch

save

battery

power.

change

batteries,

put

the

power

switch

off

first.

Slide

open

the

battery

cover

and

replace

batteries.

OPERATION

you

are

all

area,

for

instance,

use

11.7V

ADAPTOR.

When

you

use

ADAPTOR

different

voltage,

may

cause

damage

both

the

ADAPTOR

and

calculator.

Plug

the

applicable

ADAPTOR

(100,

117,

220

240V)

into

the

outlet

and

the

cord

into

the

calculator.

When

plugged

in,

battery

power

supply

stops

automatically,

battery

power

not

wasted.

prevent

the

damage

the

calculator,

USE

ONLY

THE

ADAPTOR

recommended

your

dealer.

3/BASiC

OPERATIONAL.

EXAMPLES

EXAMPLE

OPERATION

READ-OUT

741

258

963

-1446

3.4

=2284.8

963

+25

“38.52

(123

654

-789)

2.5+5

=-300.3

741B258H963

12ES3E14Q56

123O6504B789B

205B5B

1446.

2284.8

~~38B2~

-SOOlT

-300.3

negative

figure

displayed

with

minus

{—)

sign

digits.

Note:

perform

problem

commencing

with

negative

figure,

operate

ENTRY

sequence.

-10-20+45

-^/CALCULATION

WITH

CONSTANT

ENTRY

♦

•

Obtains

product

(quotient)

ENTRY

Obtains

product

(quotient)

---*-*-Number

entered

set

con-

•f

stant

multiplier

(divisor).

The

constant

released

when

normal

calculation

performed.

EXAMPLE

OPERATION

READ-OUT

314x123-

386.22

3.14

x456

—

1431.84

3.14

789

—2477.46

(K)

3652+275

13.28'

7854

+275

=28.56

9658

+275

=35.12

30140

□

123B

456B

3.14

386.22

1431.84

2477.46

275C

7854B

9658

275.

1328

28.56

35.12

5/SQUARE/POWER

RECIPROCALS

EXAMPLE

OPERATION

READ-OUT

2.5

—

625

2.5

—

15.625

2.5

39.0625

2050

6.25

15.625

39.0625

4.5

=0.0444444...

9876

123

456

17056994—

2030405

22.5

0.0444444

123045600

9876

_579

17.056994

6/MEMORY

CALCULATION

Automatic

accumulation

(SENTRY

ENTRY

Obtains

answer

and

au¬

tomatically

accumulates

into

the

memory

positively.

sure

depress

the

■

Recalls

the

accumulated

total

the

memory.

-*»-Clears

contents

the

memory.

key

prior

starting

memory

calculation.

EXAMPLE

OPERATION

READ-OUT

—106

-884

194.4

1256

32.5

1288.5

147-25

122

1410.5

2353132B

260304

1256

147

106.

88.4

194.4

1288.5

122

1410.5

Note:

accumulate

number

into

the

memory

negatively,

operate

follows.

78.5

14.7

-1153.95

2.5

112.5

1041.45

780501407E3

14513205B

1153.95

112.5

1041.45

Direct

access

the

memory

Any

number

display

directly

accumulated

into

the

memory

many

times

the

key

depressed.

+{6

}

+(6

)—

12.4

6H5

7/PERCENTAGE

CALCULATION

The

£3

key

works

with

both

multiplication

and

division.

Depressing

the

f[§

key

after

finishing

percentage

multiplication

gives

mark¬

discount.

EXAMPLE

OPERATION

READ-OUT

[

290.

40.

20%

1450

290

145QQ20E3

Percentage

580

against

1450

40%

580S314502

constant

also

utilized

percentage

calculation.

20%

mark

1450

1740

1450E3

20213

20%

discount

1450

1160

14-500

202

1740.1

1160

O/OVERFLOW

Overflow

takes

place

when

answer,

whether

intermediate

final,

accumulated

total

the

memory

exceeds

digit

integers

{or

digits,

when

the

figure

negative.)

all

calculations

and

indicated

the

"EV

sign,

stopping

further

calculation.

release

the

locked

registers

caused

the

overflow

check,

depress

the

£3

key.

EXAMPLE

OPERATION

READ-OUT

123456-78

9876

—

1219259159.28

123456SJ78E3

98762

123456.78

{To

start

new

calculation.)

S/PRACTICAL.

EXAMPLES

9-1

PRO-RATING

Division

Sales

amount

3,375

4,320

1.890

3.915

Total

$13,500

100

OPERATION

READ-OUT

33750

43200

189053

39150

0010

3375S

4320Q

1890S

3915

3375.

7695.

9585.

13500.

135.

25.

32.

14.

29.

100

9-2

INVOICING

Article

Q'ty

'--

Unit

price

----—---

■

Discount

Amount

100

$18.95

$1,800.25

200

9.95

1,930.30

300

13.95

10%

3,766.50

Total

$7,497.05

—

.—

sales

tax

449.823

Grand

total

OPERATION

READ-OUT

01000180950095

2000

90950097B

300013095009

180025

19303

3766.5

7497.05

449.823

7946.873

060

OPERATIONS:

Four

basic

functions,

chain

and

mixed

operation,

constants

for

x/-r,

automatic

accumulation

four

functions,

direct

access

the

memory,

percentage

calculation

including

mark-up/discounts,

square/powers,

reciprocals,

true

credit

balance

and

calculation

involving

decimal

places*

CAPACITY:

Entry/display.

digits

for

negatives)

Addition/subtraction.8

digits

for

negatives)

Multfplication/division.8

digits

for

negatives}

Accumulation

into

the

memory.8

digits

for

negatives)

OPERATING

SYSTEM:

working

registers.

DECIMAL

POINT:

Full

floating

decimal

point

system

with

fool¬

proof

underflow.

NEGATIVE

NUMBER:

Indicated

minus

(—}

sign

the

left

the

figure.

OVERFLOW

CHECK:

indicated

the

“ET

sign,

locking

the

calculator.

READ-OUT:

Zero

suppression,

Multi-Digitron

tube

panel.

MAIN

COMPONENT:

One

chip

LSI

POWER

CONSUMPTION:

0.2w

POWER

SOURCE:

AC:

TOO,

117,

220

240V

10V),

50/60Hz,

with

applicable

Adaptor.

DC:

Two

size

manganese

dry

batteries

(SUM-3)

operate

about

9.5

hours

continuously.

Two

size

alkaline

dry

batteries

(AM-3)

operate

about

hours

continuously.

USABLE

TEMPERATURE:

32°F

104°F

(0°C

40°C)

DIMENSIONS:

23.8

148

(FHx

5-7/8"Wx2-7/8"

WEIGHT:

155

(5.5oz)

including

batteries.

CARE

YOUR

MEW

ELECTRO¬

NIC

CALCULATOR

The

calculator

durable,

precision-made

instrument

which

wifi

provide

you

with

years

trouble-free

service.

help

ensure

this

recommend

that

the

inside

the

calculator

not

touched.

also

inadvisable

subject

the

calculator

hard

knocks,

drops,

and

unduly

strong

key

pressing.

Extreme

cold

(below

32°F

0°C),

heat

(about

104

’F

40°C)

and

humidity

may

also

effect

the

function

the

calculator.

When

you

not

use

the

calculator

for

long

period,

take

out

the

batteries

prevent

damage

the

batteries

leak.

Special

care

should

taken

not

leave

the

dead

batteries

inside

the

calculator.

Please

make

sure

you

switch

off

the

power

when

you

finish

your

calculations

intend

open

the

cover

change

batteries.

Should

the

calculator

need

service,

take

the

unit

the

store

where

purchased

nearby

dealer.

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