Monroe 30 Manuel utilisateur

Portable Electronic Display Calculator

MOdel:3

MONROE

Litton

Monroe,

The

Calculator Company

Orange,

New

Jersey, U,S.A. •

Toronto,

Canada·

Zurich,

Switzerland

Sales

and

Service

Throughout the World

1743-5 Printed in U,S,A,

INTRODUCTION

We'd like

extend

our

congratulations on

your

discriminating taste in

calculators.

buying aModel 30, you

have

purchased the end result

meticulous

quality

workmanship backed

Monroe's 60-plus years

solid experience.

Your

Model 30

full

function

calculator features

eight-digit display capacity, automatic constant

multiplication

and

divi-

sion, sequential and percent calculations, floating (F)

and

+(Add Mode)

decimal selection, zero suppression

for

longer operating time, overflow,

underflow,

and

abright, large, glare-free planar display. The spacious

keyboard and the angle

the display facilitate desk-top

well

hand-held operation. Once you

work

with

Monroe's Model 30,

you'll

know

why

we take justifiable pride in this dynamic new product.

Litton MONROE Model 3

C1"

Portable Electronic Display

Calculator;}<~'

operating instructions

Monroe, The Calculator Company

lIIIIIIIIllIiiII

....

j~.'

Litton

Busi

ness

Systems, Inc

.•

All Rights

Reserved

Operating Controls

GENERAL

SPECIFICATIONS

Dimensions: Length 6in. (15.2

cm);

width

3.5

in. (8.9

cm);

height 2in. (5.1 cm)

Weight:

oz.

(312

gm)

Primary

Components:

MaS/LSI

Model

PERCENT

KEY

Calculates percent-

/OFF

ages.

Has add-on

DECIMAL

SELECTOR

SWITCH

and

discount

MUL

TIPL

KEY

When Model

turned

on,

:capabilities. :Enters

number

in display

automatically

cleared and ready I I I

multiplicand

(first

number

In a

for

use:

Decimal

positions

are i

r,::::=::~_.

multiplication

sequence)

com-

(full

floating)

and +(add-model. I

,CI~:

pletes a

calculation

and sets

CLEAR

AND

CLEAR

ENTRY

KEY

'-I-I:~':~:

result

multiplicand.

. . i

OIII:JI~

Cle.ars

Incorrect

entr!es; apending I

:±:"

...£;--""

"EQUALS

KEY

multiplication

diVISion

operation

~~~§J-~

Cit

It'

d·t" I - I

omp

amu Ip Ica Ion

over

con IIon. (Z)(§)

lID

B.-,

division

operation.

NUMERIC

ENTRY

KEYS

-....

I :

Enter

numbers and decimal

point

I@](§)ffiJEJ

·,

DIVIDE

KEY

exactly

you

would

write

them. []](g)[ID[+J:

E.n~ers

nU~ber

displ~y

PLUS

KEY

-Jro-I-r;-,"'U

:d.,v,dend

(first

number

ad,VI-

.L:..J :slon sequence)

completes a

,Adds

entry

the

add

and

calculation

and sets uresult

displays the

sum.,

Repetitive

depreSSions ja

dividend.

cause repeat

addition.

depressed

after

MINUS

KEY-

multiplication

percentage

operation,

Subtracts

entry

from

add register, displays the

dif-

adds

the

result

the

multiplicand.

ference.

Repetitive

depressions cause repeat subtrac-

tion.

depressed

after

multiplication

percentage

operation,

subtracts result

from

multiplicand.

OPERATING CHARACTERISTICS

AND

TECHNIQUES

DECIMAL

SYSTEM

Enter numbers

and

decimal

point

exactly as

you

would

write

them.

Entries

may

contain

whole

7decimal digits

any

combination

thereof.

F(FULL FLOATING)

The

decimal

point

results will

automatically

position itself

allow

maximum

decimal accuracy within

the

8digit display

capacity,

without

the

loss

of whole

number

digits.

Example: 10-;.

3.3333333

+(ADD-MODE)

The

last

two

digits

any

entry

will

automatically

be displayed as

decimals unless

the

decimal key

depressed. If

the

result

obtained

.depressing

the

orOO

keys

contains

than

two

decimal places

the

result will automat.ically.be

rounded

two

decimal places. This special setting IS designed

for

convenience

working

with

monetary

values.

Example:

$13.75

145.00;

$158.75

Decimal

Depress

Numbers are set as

1375

+,14500+

and

displayed as

13.75,

145.00.

two

zeros are

not

entered, as in

145.00,

the

displayed

number

would

1.45.

alternate

method

when

entering awhole dollar

amount,

such as

$145.00,

depress

the

decimal

point

key

inste.ad

entering

two

zeros.

DECIMAL

FLEXIBILITY

The decimal setting

may

be changed

between

calculations

without

affecting

the

accuracy

of a

number

being

entered,

number

already stored

the

calculator.

CLEAR

4ND

CLEAR ENTRY KEY

Depression

this key clears

the

entire

calculator unless

there

entry

progress

an overflow

condition

exists. If there

entry

in.

progress depression

the~

key

clears only

the

display ell'try.

an overflow

condition

exists depression

the

key

clears only

the

overflow

condition

without

disturbing

the

constant

value

results.

INSIGNIFICANT ZERO SUPPRESSION

Unnecessary zeros

the

left

the

most

significant displayed digit are

not

displayed.

LLV

AUTOMATIC

CONSTANTS

The

value

entered

with

the

0key

the

result

obtained

with

thew

~ey

aut~mati

cally

retained

as a

constant

factor.

The

last divisor

entered

automatically

retained

as a

constant

divisor.

UNDERFLOW

results

containing

combination

whole

and

decimal digits in excess

the

display

capacity

the

decimal

point

will

shift

accommodate

the

most

significant digits,

not

exceed

whole

numbers.

Example:

12345.679

x27.01 =

333456.78979

Examples: 2 x 4 = 8

2x6=12

2+4=

12+4=3

OVERFLOW

the

left

the

display

indicates

that

the

8-digit

display

capacity

has

been

exceeded.

The

calculator

must

cleared

depressing

the

key

before

continuing.

Instructions:

Decimal

Depress

Enter

12345.679

27.01

Depress Display

112345.679

333456.78

Instructions:

Decimal

Depress

Enter

Depress Display

2. I

12.

2. I

0.5

3. I

AUTOMATIC

5/4

ROUNDOFF IN +(ADD MODE) SETTING

all

multiplication

and

division

operations

the

last

digit

displayed

is increased

one

the

following

digit

would

have been

five

greater.

Example:

12.75

2.3575

30.058125

Instructions:

Decimal

Depress

SEQUENTIAL CALCULATION

Multiplication

and

division

calculations are

performed

the Model

you

would

write

them.

For

greater accuracy

intermediate

results are always

carried

maximum

capacity.

Example:

-;-

6 x 7 =

11.67

Enter

12.75

2.3575

Depress

Display

12.75

30.06

nstructio

ns:

Decimal

Depress

Enter

Depress

Display

10.

I1.6666666 I

11.666666

---------------~------------'--

Monroe Model

APPLICATIONS

ADDITION/SUBTRACTION

WITH

REPETITIVE ENTRIES

EXAMPLE:

1.23

4.56

-1.39

-5.89

-1.65

(credit balance)

INSTR

UCTIONS:

Decimal

Depress

Enter

Depress Display

123

ill

1.23

2.46

456

ill

7.02

139

5.631

4.24

589

1.65

Negative

amounts

are always indicated

(-l

minus sign in

the

left

the

display.

MULTIPLICATION

AND

DIVISION

EXAMPLE:

45.67

4.56

208.2552

INSTRUCTIONS:

Decimal

Depress

Enter

45.67

4.56

Depress

Display

45.671

208.25521

EXAMPLE:

37.55

+50.05

0.7502497

INSTRUCTIONS:

Decimal

Depress

Enter

37.55

50.05

Depress

IT]

oDisplay

[---

37.551

0.75024971

CONSTANT

MULTIPLICATION

AND

DIVISION

EXAMPLE:

1.65x211

=348.15

.65

97.35

1.65 x

110.55

INSTRUCTIONS:

Decimal

Depress

Enter

1.65

211

EXAMPLE:

Depress

48""

""3

10..,.3

Display

C==T.65

348.151

97.351

1110.551

INSTRUCTIONS:

Decimal

Depress

Enter

Depress

[±]

Display

C48.1

16.1

I4.1

3.3333333

SEQUENTIAL

CALCULATIONS

EXAMPLE:

..,.

1.6

x 5 x 2 =

21.875

INSTRUCTIONS:

Decimal

Depress

Enter

1.6

Depress Display

G.J

I7.1

G.J

3.5

2.1875

10.9375

21.875

RAISING

NUMBER

APOWER

EXAMPLE:

32=9

33=

34=

INSTRUCTIONS:

Decimal

Depress

Enter

Depress

Display

C==

3.1

9.1

I27.1

81.1

PERCENT

CALCULATIONS

EXAMPLE:

What

16%

o.f

150?

INSTRUCTIONS:

Decimal

Depress

Enter

Depress

150

Display

150.1

I24.1

Display

EXAMPLE:

What

150

60?

INSTRUCTIONS:

Decimal

Depress

Enter

Depress

C=='

60.1

I40.1

ill

150

EXAMPLE:

What

the

amount

discount

and the cost

article

marked

$30.45

less

12.5%?

INSTRUCTIONS:

Decimal

Depress

Enter

3045

12.5

Depress

[2$]

Display'

C30.451

3.81

(discount)

I26.641 (cost)

EXAMPLE:

What

the

tax

and

the

total

cost

article

costing $25.20?

Tax

4.0%

INSTRUCTIONS:

Decimal

Depress

Enter

2520

4.0

Depress

ill

Display

25.20

1.01!(tax)

I26.21

!(total

cost)

PERCENTAGE

DISTRIBUTION

EXAMPLE:

Percent

Sales

Total

Sales

Detroit

123,455

9.02

Boston

456.593

33.34

New

York

789.325

57.64

$1,369.373

100%

INSTRUCTIONS:

Decimal

Depress

Enter

Depress

Display

123455

IT)

I123455.1

456593

III

1580048.1

789325

ill

I1369373.1

1369373.\

1.00

123455 00 I

9.01543

456593

3334321

789325

57.64134

CALCULATING

SIMPLE INTEREST

SAVING

ACCOUNT

EXAMPLE:

Calculate

the

simple

interest

accou

500

interest

rate

7.5%

for

160

days

using a

360

day

year.

INSTRUCTIONS:

Decimal

Depress

Enter

160

360

1500

7.5

EXAMPLE:

Depress

Display

ill

I160.1

0.4444444

666.66661

rn:J

49.9999951

FIGURING

BILL

doz.

$5.00

doz.

discount

rate =5%

tax

=4%

freight

charge =

$5.00

Find:

Gross

Discount

Amount

Net

Tax

Amount

Gross

Billing

Grand

Total

INSTRUCTIONS:

Decimal

Depress

Enter

Depress

Display

5IE I

5.1

5GI25 HGross)

IE I

251

5llil I

1.25

i(Discount

Amt.)

23751(Net)

123.751

951(Tax

Amount)

ill

I24.701(Gross

Billing)

5mI

29.

70l{Grand

Total)

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