Bowmar MX80 Manuale utente

INTRODUCTION

Your

Bowmar

MX80

Calculator

represents a

significant

engineering

achievement

resulting

full-size

capability

pocket-size

package.

Advances

miniaturized

computer

circuits

using

single-chip

LSI

(Large

Scale

Integration),

LED

(Light

Emitting

Diode)

display

technology,

and a

unique

snap-action

keyboard

have

provided

rugged,

reliable

unit,

and

the

self-

contained

nickel-cadmium

rechargeable

batteries

permit

convenient

use

even

when

power

not

available.

The

MX8Q

performs

addition,

subtraction,

multiplication,

division

and

percentage

including

chain

mixed

multiplication

and

division.

and

utilization

stored

constant,

It also has a

capability

mark

discount

number

after

the

percentage

calculated.

Ten

digits

are

provided

for

entry

and

readout

with

afull

floating

decimal

and

positive

negative

sign.

Additional

display

indicators

denote

Power

On,

Low

Battery,

Overflow,

Error

and

Minus

Sign.

"Battery

Saver"

feature

extend

battery

ope1ating

time

causes

the

display

blank

out

approximately

seconds

after

the

last

entry,

without

the

loss

problem.

It is

suggested

that

the

following

instructions

read

with

the

calculator

hand,

and

that

all

examples

performed

with

the

unit

increase

your

familiarity.

short

outline

operating

procedures

also

printed

the

back

the

calculator.

•

OPERATION

Operation:

Set

the

switch

the

back

the

Charger/

Power

Supply

the

electrical

outlet

voltage,

Le., 115

230 Volts.

Plug

the

Charger

into

the

outlet

and

the

connector

into

the

Calculator.

(Note

that

the

connector

keyed.)

After

these

connections,

the

power

switch

may

turned

and

operation

started.

Battery

Operation:

Disconnect

the

Charger

cord

and

turn

the

power

switch

"ON".

With

normal

use

afull

battery

charge

can

expected

supply

about

hours

working

time.

NOTE:

When

the

low

battery

indicator

(L) on

the

display

lighted,

not

continue

battery

operation.

This

indicates

need

for

battery

charge.

Use

Ihe

Calculator

can

continued

during

the

charge

cycle.

Charging

will

continue

whether

calculator

off.

Battery

Charging:

Simply

the

same

procedure

operation.

The

Calculator

may

used

during

the

charge

period

desired.

order

fUlly

charge

battery

which

has

been

completely

discharged,

hours

required.

most

cases, an

overnight

charge

should

adequate.

NOTE:

Although

damage

will

result

from

prolonged

periods

with

the

Charger

connected,

advisable

remove

the

Charger

when

not

use

after

fu!1

recharge

cycle.

CAUTION:

avoid

possible

damage,

use

only

the

charger

provided

with

the

calculator.

•

CONTROLS

INDICATORS

'K'

Switch

Adds

minus

sign

entry,

Subtracts

the

entered

number

completes

prevlOusly

entered "multiply" or

"divide" command.

Slide

sWItch

with

positions;

the

position,

the

'K'

operation

is in

effect.

Use

'K'

allows

number

entered

and

retained

"constant"

for series

multiplication

division

Performs

mark~up,

and

discount

operallon.

Clears

the

Calculator

and

the

display

all

numbers.

Clears

the

display

the

keyboard

entry,

Enters

"multiply"

command.

Enters

"divide"

command.

Adds

the

entered

number,

carries

out

previously

entered

"multiply"

"divide"

command.

Turns

Calculator

"ON"

"OFF".

Key

"ON"

Switch

Key

•

13.

•3. m

all

12.

10.

11.

•

__ __

-..,.

Finally,

touch

the

key

for

answer

Display

will

be:

Note:

Use

during,

immediately

after entry of anumber.

Then

you

enter

mistake

The display is:

Then

enter

'12'

Display wi\!

be",

Amistake!

To clear

13,

touch the II.key

Display

will

be:

•

PRELIMINARY

INSTRUCTIONS

enter

(write

number)

Example:

enter

123.45

First,

clear

touchingll

Then

touch

number

and

decimal

keys

for

123.45 one at atime. Always start

with

the

left

hand

digit

and

progress

from

left

right.

Display

will

then

be:

To clear (erase)

Touch

thell

Key

Cleared

display

will

be:

123.45

clear

incorrect

entry

Example:

48·+-

your

calculation

A. You

have

already

entered

Display

is;

You now touch the

key

Display

will

be:

•

OJ(

151

; 1 1-1 , ,

",J

"til';,

Mit

,¢

Ii.

CALCULATIONS

ADDITION

Example

ff1:

calculate

16.39 +9.83 =

Do these steps display will be

SUBTRACTION

Example

#1:

calculate

12.81

3.6:.=

Do these steps

display

will be

Touch

Enter

16.39

Touch

Enter

9.83

Touch

Answer

16.39

9.83

,26.22

ToUChll

,b.

Enter

12.81

Touchll

•d. Enter

3.6

e. Touch=

Answer

12.81

9.21

19.1

14.1

Example

#2:

calculate

23"~

2.1

- 5 =

these

steps

display

will

TouchB

Enter

TouCh=:

Enter 6

Touch=

Enter

2.1

•g.

Touch

Enter

TouCh=

Answer

37.4

33.3

Touch =

Enter

Example

#2:

calculate

--I-

9+8.3 +

4.1

:.=

these

steps

display

will

TOUChl!

Enter

Touch

Enter

8.3

Touch =

Enter4,7

TouchCl

Answer

•

Lit

384.3

,6.1

Example

#2:

calculate

3 x

6.1·

these

steps

display

will

Example

#3:

calculate

x 6

Use

'K'

Switch

x8.2 :=

x7.6=

these

steps

display

will

Touch

Enter

,c.

Touch

1d.

Enter

Touch

Enter

6.1

Touch

Answer

10.

20.

10.

50.

Answer

Enter

Touch=:;

Enter

Touch

Example

#3:

calculate

-82 +10 -40-=:

these

steps

display

will

Touch

Enter

TouChl:l"

Enter

Touch

186.

31.

Touch

Push

'K'

(up)

Enter

Touch

Enter

Touch

1:1

1st Answer

Enter

8.2

29.32

56.5

29.32

16[,6.58

Answer

MULTIPLICATION

Example

#1:

calculate

29.32 x

56.5::..::

these

steps

display

will

Touch

1:1"

Enter

29.32

Touch

dEnter 565

Touch

1:1

2nd

Answer

Enter

7.6

254.2

Touch

Enter

f:J

Touch

3rd

Answer

235.6 g.

Touch:l

Answer

181.

117.

,6.4

12.06666666

Enter

181

Touch

=:I

1st

Answer

Enter

Touch

2nd

Answer

Enter11?

Push

'K'

(up)

Example

#3:

To calculate

181

-;-.

15 =

Use

'K' switch 96

-;.

15 =

117715=

these

steps

display

will be

Touch

3rd

Answer

•

376.

,7.094339622

,53.

k. Push

'K'

off

(down)

Touch

Enter

DIVISION

Example

#1:

To calculate 376

~,~

these

steps

display

will

Touch

II.

Enter

376

Touch

Answer

Example ·#2: To calculate

---:-

3-:-- 9 -

these

steps

display

will

Touch

Enter

Touch

Enter

Push

'K'

olf

(down)

PERCENTAGE

Example

:;'1:

calculate

375

these

steps

display

will

Example

,13:

10%

discount,

sales

tax

item

$250.

these

steps

display

will

TOUChS

Enter

TouChm

Touch

Enter

375

Touch =

Answer

0.05

375.

18.75

Enter

250

Touch

c. Enter 10

•d.

TouChm

Touch

Value

After

•100j<,Olscoun

Touch

Enter

250.

225.

Example

;;,2:

Markup

after

adding

sales

tax

item

$16.00

these

steps

display

will

Touch

DlFinal

Amount

Paid

11.25

236.25

Enter

TouchEi

.16.

Example

;;'4:

What

125?

these

steps

display

will

Enter

Touch

a!Final

Amount

0.48

16.48

Enter

Touch

'C'

c. Enter 125

d. Touch

Answer

125.

Touch=

hTouch

Enter

TouchD

-_.

•

Enter

Touch

Enter

Touch

Answer

15.33333333

-92.

Example

;3:

17)

Answer

these

steps

display

will

(9 +6 - 5) x8

....-

Enter

Touch

Enter

eTouch

Touch

Enter

h. Touch

;;

Example

#2:

calculate

MIXED

ARITHMETIC

Example

#1:

calculate

23 x

(--4)

--:-

(---6)

=---

these steps

display

will be

Touch

these

steps

Touch

display

will

Enter

Touch

,38.

Enter 6

Touch

Enter

5304.

.,.

La;

•

Touch

Enter

Touch

Answer

For

example,

multiplication

two

positive numbers

12345678 X

345678

will

give

the

following

display

r426.7629279

will

give

the

tollowlng

display

mUltiplication

positive

and

negative

number

EXPONENTS

Example;;1: To calculate

(3)5

Do these

steps

display

will

12345678'

345678

RECALL

THE

DISPLAY

AFTER

'BLANKING'

During

battery

operation,

the

display

will

automallcally

turn

off,

there

keyboard

activity

for

about

seconds.

This

feature

provided

conserve

the

battery

power.

Depress

any

key

the

keyboard

reeaU

the

'blanked'

display.

c426.7629279

The

",'.

"or

"::.:

symbol

jndicates

positive

negative

"overflow"

respectlvely,

and

indicates

answer

than

digits

shown. To obtain the

correct

decimal

location

lor

either

case,

simply

record

the

displayed

number

and

move

the

decimal

point

places

the

right.

The

real

answer

will then be:

+4.267,629,279,000.

places

This

procedure

applies

all

operations;

multiplication,

division,

addition,

subtraction

and

per-centage. Use

the

'C'

key

clear

the

overflow.

OVERFLOW

INTERPRETATION

The positive

negative overHow indicator

indicated

by"

or:=

respectively,

will

appear

W~len

the

display

capacity

the

calculator

exceeded.

Touch

bPush

'K'

(uP)

Enter

Touch

e. Touch

1:11

Touch

ail

Touch

Answer

Push

'K'

off

(down)

_-----------_

......

-----------------

...

:'1:;

•

l¢

(£4,

'lOP

•

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