Unitrex Mini handy 80m Manuale utente

DiSTRlBUTED

BY

n

nr

a

i

umtrexof

l^AK

I

AMERICA

me.

EMPIRE

STATE

BUILDING

.

350

F/FTW

A

VE.

N.

Y

.,

N.Y.

1OO01

Printed

in

Japan

handy

80M

CONTENTS

PAGE

BASIC

OPERATIONS

.

x

1.

Addition.

.

i

2.

Subtraction

.

2

3.

Multiplication.

2

4.

Division

*“*’*'*’.

2

5.

Decimals

.

3

^

Battery

Check

Function

advanced

CALCULATIONS

3

1„

Negative

Calculations

4&5

2,

Chain

Functions

“

^

3

constant

Multiplication/Division

.

y

4

Squaring

and

Raising

to

Power-

-

'—.

?

5.

Add-Mode

Calculation

.—

'.

g

6.

Memory

Calculation

-

*

COMMERCIAL

APPLICATIONS

.

g

1.

Simple

Discounts.

.

g

2

Chain

Discounts

&

Tax

Add-ons

.

3

Percentage

Figures

a?

a

Constant.

^

4

Repeated

Addition

&

Subtraction

—

"

u

5.

Payroll

Applications.

12

6.

Interest

Calculations

SPECIAL

IRD1CAT0RS

.

13

1.

Overflow...

]..

13

2.

Negative*.

BATTEM

.

'ZZZ'.

15

MAINTENANCE

INSTRUCTION.

Your

UNtTREX

SOM

has

ten

numerical

entry

keys

to

set

digits

from

0

through

9

plus

a

decimal

entry

Hey

which

allows

the

operator

to

set

the

decimal

point

where

needed.

Before

starting

an

operation,

clear

the

calculator

by

depressing

the

El

Clear

Key.

A

zero

(0.)

will

appear

in

the

display

window

When

the

operator

is

aware

of

having

entered

an

incorrect

number

the

keyboard

entry,

can

be

cleared

of

that

number

by

depressing

the

C

Key

without

disturbing

the

or

results.

The

Key

is

for

calculating

percentages.

BASIC

OPERATIONS

1.

Addition

Example:

123

+

45

=

168

Depress

the

CD

1213

Keys.

As

the

numbers

are

depressed

they

will

appear

in

the

display

window

Next,

depress

the

El

Key.

Now

depress

the

0

El

Keys

and

the

ffl

Key

again.

The

correct

total

(168)

will

appear

in

the

display

window

Note:

Be

sure

to

clear

(©

Key)

the

calculator

before

performing

die

2.

Subtraction

Example:

678-90-

588

Depress

the

©SI]

Keys.

Depress

the

EB

Key

to

enter

the

numbers

into

the

calculator.

Depress

the

OB©

Keys

and

depress

the

B

Key

to

subtract

the

numbers

from

the

The

result

(588)

will

appear

in

the

display

window.

Multiplication

Example.

456X

2-912

Depress

the

SSI®

Keys

and

fcose

numbers

appear

in

the

display

window.

Depress.the

□

Key

Depress

the

55

Key.

Depress

the

B

Key

and

the

answer

(.912)

will

appear

in

the

display

window.

Division

Example

.789-3=263

Depress

the

12®®

Keys.

Depress

the

0

Key.

Depress

the

®

Key

and

the

0

Key.

The

answer

(263)

will

appear

in

the

display

window.

Decimals

Example:

65.38X

1

.

4

=

94.1472

Set

Decimal

Switch

to

left

position

Depress

the

mmomm

Keys.

Depress

the

0

Key.

Depress

the

IBQEKS

Keys.

To

receive

the

correct

th*

i=l

Kev

The

answer

(94.

14

answer

depress

the

LJ

y

'

T

.

unjtrEX

72)

will

appear

in

the

display

window.

The

UNITREX

gOM

will

automatically

float

the

decimal

to

.ts

est

position

when

the

Decimal

S^tch

,s

«

the

left

position.

Now

perform

the

same

emulation

as

above^but

MOVE

THE

DECIMAL

SWITCH

TO

THE

RU3HT

POSITION.

You

will

receive

the

answer

(94.151

in

the

display

window.

You

will

notice

this

answer

is

nearly

the

same

as

the

above

answer

except

that

the

calculator

has

reduced

the

^nswer

to

decimal

places

and

rounded

the

answer

off

to

the

nearest

cent

This

is

known

as

round-off,

and

s

a

very

valuable

feature

when

calculating

in

dollars

and

cents.

#BATTERY

CHECK

FUNCTION

The

dry

cell

(Q06P

9V)

should

be

replaced

when

a

round

lamp

at

left

of

the

display

is

lit

up.

ADVANCED

CALCULATIONS

For

the

remaining

problems

follow

the

calculations

in

the

sequence

as

outlined

under

the

KEY

column.

Depress

the

function

keys

or

numerical

entry

keys

as

shown.

The

results

will

be

shown

in

the

display

as

listed

in

the

DISPLAY

SHOWS

column.

1.

Negative

Calculations

Example:

(—26)

+

(

—15)

=

—41

(Decimal

Switch

at

F

Position)

DEPRESS

KEY

DISPLAY

SHGWS

:T1

26.

15.

41.

Answer

Example:

(~

4

}X

8

=—32

(Decimal

Switch

at

DEPRESS

KEY

F

Position)

DISPLAY

shows

0.

4.

—4.

-4.

8.

—32.

Answer

Example:

32T-

(

—4)

—

8

(Decimal

Switch

at

F

Position)

DEPRESS

KEY

\s

B

2.

Chain

Functions

Example:

{

95

-F

78

+

82

)

~

3

-

(Decimal

Switch

at

DEPRESS

KEY

display

SHOWS

a

3a

32.

4.

8.

—8.

Answer

=85

F

Position)

DISPLAY

SHOWS

0.

95.

78.

1

73.

82.

2

55.

2

55.

3.

85.

Ans

g

85.

Answer

Example:

56

X

63

X

89-r

56—

5607

(Decimal

Switch

at

F

Position)

DEPRESS

KEY

DISPLAY

SHOWS

®

56.

ISK&i

I®

sst

.

(Intermediate

result)

mi[g

-

'

89.

313992.

(Intermediate

result)

(51161

^

6

.

jd

5607.

Answer

Example:

(56+

56—80

)

X

23.9

58.777077

(Decimal

Switch

at

F

Position)

DEPRESS

KEY

DISPLAY

SHOWS

El

°-

(HE

5&

B

56.

(HE

56

-

B3

!“•

SHU

89

-

S

2a

El

2a

(US

2a

(Intermediate

result)

9.

58.777777.

Answer

Example:

(2-1-5—3)

.

(Decimal

Switch

at

F

Position)

DEPRESS

KEY

®S

pLW

DISPLAY

SHOWS

0.

■

2

.

2.

5.

7.

3.

4.

8

.

32.

(Intermediate

result)

4.

8

.

(Intermediate

result)

8

.

7.

1.

Answer

Constant

Multiplication

and

Division

!

Your

UNITREX

SOM

calculator

is

equipped

with

a

automatic

constant

memory

feature

you

to

MULTIPLY

over

and

over

using

the

same

number

without

re-entering.

Example:

12X10=

120(A)

12X

36=432(6)

12X52=624(0

(Decimal

Switch

at

F

Position)

depress

key

fflS|,LJ,Y

SHBWS

m

°-

1213

E

1Z

'

mjol

j±!

120.

Answer

to

A

r§lfe1

36.

jgj

432.

Answer

to

B

S®

624.

Answer

to

C

la

Your

UNITREX

80M

calculator

equipped

with

an

automatic

constant

memory

feature

“

J

n

you

to

DIVIDE

over

and

over

using

the

same

number

without

re-entering.

16^8—2(A)

108-r8=

13.5(C)

96-^8=12(6)

DEPRESS

KEY

m®

display

shows

0.

16.

a

2.

Answer

to

A

96.

12.

Answer

to

B

108.

13.5

Answer

to

C

4.

Squaring

and

Raising

to

Power

Example:

12*

DEPRESS

KEY

144

a

'

Example:

12*

REPRESS

KEY

(Dtcimat

Switch

at

F

Position}

DISPLAY

SHOWS

0

.

12

.

12

.

144.

Answer

1728

(Oicimal

Switch

at

F

Position)

DISPLAY

SHOWS

0.

emu

12

.

El

12.

(1st

Power)

©

144.

(2nd

Power)

a

1728.

(3rd

Power)Answer

20736

El

5.

Example:

12

4

=20736

(Oicimal

Switch

at

F

Position)

DEPRESS

KEY

DISPLAY

SHOWS

m

°-

moo

1Z

g

12.

(1st

Power)

g

144.

(2nd

Power)

g

1728.

(3rd

Power)

g

20736.

(4th

Power)Answer

ADD-MODE

CALCULATION

(Decimal

Switch

at

AW

Position)

When

the

decimal

point

switch

is

set

to

S-(AM)

each

displayed

entry

is

divided

by

100

.

(Example)

5365

ffi.53.65

Nametv,

any

number

is

automatically

displayed,

as

a

number

divided

by

100

,

and

the

decimal

point

key

need

not

be

depressed.

Such

a

feature

is

very

useful

in

the

following

cases:

1.

Calculations

regarding

dollars

and

cents

2.

Calculations

regarding

yen

and

sen

3.

Other

calculations

with

a

decimal

point

always

fixed

to

the

second

digit.

T

Example:

12

.

55

+3+5.15-8.32=

12.38

El

mmm

e

DISPLAY

SHOWS

0

12.55

3.00

15.55

5,15

20.70

8.32

12.38

5.MEMORY

CALCULATION

(Memory

Switch

at

M

Position)

(Decimal

Switch

at^F

Position)

The

memory

is

very

useful

when

temporarily

storing

an

entry

in

the

middle

of

complicated

calculations

such

as

vertical

and

horizontal

calculations

in

slips.

Set

the

memory

switch

to

the

ACC(M)

side.

©key

and

M

key

are

used

to

put

an

entry

in

the

memory.

When

a

number

is

stored

in

the

memory,

the

9th

figure

shows

a

red

markingC

•

)*

COMMERCIAL

APPLICATIONS

1.

Simple

Discounting

(Decimal

Switch

at

2

Position)

An

item

sells

for

$

53.50

with

a

discount

of

25%.

What

is

the

discount?

What

is

the

NET

selling

price?

Enter

H]@Q0i3

Depress

SI

Enter

{DH3

Depless

M

(Read

$

13.38

discount)

Depress

E

(Read

$

40.12

NET

price)

From

the

above

problem

you

can

see

how

your

UN1TREX

SOM

unique

keyboard

memory

system

works

for

computing

discounts

and

then

subtracting

those

discounts

from

the

previously

entered

figure

without

re-entry.

Now

see

in

the

example

below

how

this

keyboard

memory

system

works

for

tax

calculations

and

add-ons.

2.

Chain

Discounts

and

Tax

Add-ons

(Decimal

Switch

at

2

Position)

An

item

sells

for

$

93.50

with

a

discount

of

25%

and

sales

tax

of

5%

on

the

reduced

sum.

What

is

the

discount?

What

is

the

sales

tax?

What

is

the

total

selling

price?

Enter

GBSJE3GS

Depress

®

Enter

GO©

Depress

HI

(Read

$23.38

discount)

Depress

B

(Read

$70.12

Sales

Price)

Depress

®

Enter

00

Depress

dH

(Read

$3.51

Sales

Tax,

Depress

S

(Read

$73.63

Total

Selling

Price)

3.

Percentage

Figure

as

a

Constant

(Decimal

Switch

at

2

Position)

How

much

is

17

l

A%

of

$120

and

$279.11

and

$

56.90

?

Decimal

Switch

Right

Enter

roaDUMH

(17

l

A)

Depress

®

Enter

ffiCUGj]

Depress

HU

(Read

$20.70)

Enter

CllElIDQCDQQ

Depress

Hil

(Read

$48.15)

Enter

EU1SQ®

Depress

Hi]

(Read

$9.82)

5.

Payroll

(Hourly

Wages)

Using

Constant

Memory.

(Decimal

Switch

at

2

Position)

Employee

A

Employee

8

Employee

C

Employee

D

DEPRESS

KEY

$

Z25/hour

for

40

hours

=

$

90.00

$

2.25/hour

for

30

hours

—

$

67.50

k

S

2.25/hour

for

25.9

hours

=

S

58.28

$

2.25/hour

for

33.3

hours

—

$

74.93

DISPLAY

SHOWS

0.2

2.25

40.

90.

Answer

to

A

30.

•

€

67.5

Answer

to

B

25,9

58.28Answer

to

C

33.3

74.93Answer

to

D

6.

Interest

Calculations

(Decimal

Switch

at

2

Position)

You

have

a

loan

of

$

5,000

for

90

days

interest

How

much

interest

will

you

pay?

5000X

8

X

9

Q_

*

360

*

1

00

at

8%

DEPRESS

KEY

13

/

DISPLAY

SHOWS

0

.

5000.

a

400.

(interest

for

1

year)

400.

90.

36000.

360.

100.

Answer

Example:

Find

interest

charged

on

a

loan

for

$

1,250

for

one

year

at

8%

interest

What

is

the

total

amount

to

be

paid

back

?

What

are

the

monthly

payments

for

12

months?

1250X8—?+

1250+12

Enter

Depress

Enter

Depress

$

112.50

(Read

$

100

interest)

(Read

$

1,350

prtncicipfe

and

interest)

Depress

Enter

Depress

El

(Read

$

112.50

Monthly

Payments)

SPECIAL.

INDICATORS

Your

UN

IT

REX

SOM

is

equipped

with

indicators

for

overflow

and

for

negative

answers.

1.

Overflow

When

multiplying

large

numbers

where

the

answer

will

exceed

8

digits,

the

calculator

will

alert

you

by

giving

you

the

first

8

digits

of

the

answer

and

displaying

"C

or

E”

to

the

extreme

left

of

the

display

window.

2.

Negative

Results

When

a

result

is

negative

the

calculator

will

alert

you

by

displaying

a

“

—"

(minus)

sign

to

the

extreme

left

of

the

display

window.

BATTERY

V

Preparation

for

use.

Battery

power.

Open

tne

cover

of

the

battery

compartment

on

the

bottom

of

the

unit

and

insert

a

battery

to

match

the

polailty

as

per

drawing.

Close

the

cover

and

slide

the-

power

switch

"ON”

Note:

Plug

out

when

using

battery.

AC

power.

UNITREX

8QM

can

be

operated

from

the

home

power

by

using

AC

adapter.

In

case

of

using

AC

adapter,

please

take

care

to

slide

the

power

switch

to

the

"OFF”

position.

MAINTENANCE

INSTRUCTION

This

calculator

is

made

up

of

precision

parts

such

as

LSI.

Radical

changes

in

temperature

or

humidity

can

de

harmful.

The

following

points

must

be

carefully

noted,

L

Do

not

drop

or

jar

the

machine.

2.

Always

be

certain

machine

is‘switched

“OFF”

when

not

in

operation.

This

will

prevent

unnecessary

drain

on

the

batteries.

3.

Long

hours

of

direct

heat

rays

from

the

sun

or

an

appliance

must

be

avoided.

4.

When

cleaning

the

machine,

use

a

neutral

cleaner.

Do

not

use

a

wet

doth

or

liquid

such

as

paint

thinner.

••

.

i

yv

-

*

..

•

•••••

•*•

••*

■

*

unitrex mini handy 80m Manuale utente

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