Sharp COMPET ELSI-811 User manual

ELECTRONIC

CALCULATOR

WITH

[ELSI]

esa

mooeL

EL=-811

INSTRUCTION

MANUAL

CONTENTS

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FEATURES

EXTERNAL

FEATURES

KEY

IDENTIFICATION

SPECIFICATIONS

HOW

REPLACE

THE

BATTERY

UNIT.

CAUTION

THE

BATTERY

UNIT

DOUBLE

CAPACITY

CALCULATION

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INTRODUCTION

Sharp's

amazing

Compet

EL-811

incorporating

two

ELSIs

(Extra

Large

Scale

Integration)

another

major

advancement

the

world

space-age

miniaturization.

ears.of

pioneering

research

and

achieve-

ment

electronic

engineering

have

enabled

Sharp

develop

exceptionally

remarkable

world’s

most

personal

electronic

calculator

with

one

memory

and

double

capacity

mode,

offering

both

maximum

portability

and

wide

range

mathematical

versatility.

The

EL-811

thoroughly

reliable

and

carries

out

calculations

with

amazing

speed

and

efficiency.

This

booklet

provides

detailed

ex-

planation

the

Compet

EL-811’s

operation.

FEATURES

Ultra-compact.

small,

can

operated

the

palm

your

hand.

The

utilization

ELSIs

results

the

reduction

overall

dimensions

and

weight,

increased

reliability

and

lower

operating

costs.

Double

capacity

multiplication

and

division,

answers

maximum

numbers

digits

can

obtained

even

though

EL-811

only

has

8-digit

display

panel.

division,

can

divide

digits

digits.

The

upper

significant

digits

the

quotient

are

obtained

result

and

the

lower

digits

are

zeros,

However,

the

integral

number

the

quotient

exceeds

digits,

only

the

decimal

position

memorized

the

lower

digits.

Wide

range

calculations

addition

its

four

arithmetical

calculations

and

double

capacity

calculation,

successive

multipli-

cation

and

division,

repeat

addition

and

subtraction,

discount

tax

calculation,

memory

calculation

and

other

mixed

calculations

can

quickly

performed

with

maximum

efficiency.

Convenient

constant

multiplication

and

division

multiplication

division,

multiplicand

divisor

memorized

constant

number

automatical-

ly.

After

performing

the

multiplication

division,

constant

calculations

are

performed

setting

variable

number

and

(EB)

key

only.

Rapid

charging

When

power

supplied

the

EL-811

through

the

adaptor,

with

the

power

switch

placed

the

OFF

position,

the

battery

can

charged

approximately

3-hours.

After

charging,

the

EL-811

will

operate

battery

power

for

approximately

3.5-hour.

When

the

battery

charged

5-hour,

charged

perfectly.

Operates

three

separate

power

sources

AC,

built-in

rechargeable

battery

12V

car

battery

desired.

Convenient

lamps

for

memory,

lower

digits

indicator,

constant

mode

indicator,

and

battery

level

indicator.

(Refer

page

‘External

features”

for

further

detailes)

“Zerosuppress

system”

makes

reading

figures

easier.

Automatic

clearing

system

The

machine

automatically

cleared

when

the

machine

turned

on.

Therefore,

the

calculation

can

started

immediately,

10.

Operation

possible

even

the

case

momentary

power

failure.

Even

when

the

power

cord

disconnected

during

operation

with

power

source,

the

operation

can

continued.

11.

Soft

lighting

green

display

Our

specially

developed

non-glare

green

display

panel

eliminates

eye-strain,

improves

reading

ease.

12.Convenient

carrying

case.

Always

ready

with

you

and

assist

you,

whether

the

office,

schoo!

home.

EXTERNAL

FEATURES

(a)

(b)

(c)

(d)

CHARGING

LAMP

When

operating

the

EL-811

adaptor,

this

lamp

indicates

all

times.

This

lamp

also

indicates

during

rapid

charging.

When

the

battery

voltage

below

the

normal

limit,

this

lamp

will

lit

and

will

gradually

fade

the

battery voltage

increases.

This

state

indicates

batteries

have

been

charged

some

extent.

MINUS

SIGN

INDICATOR

(—)

Automatically

indicates

when

the

result

becomes

negative.

CONSTANT

MODE

INDICATOR

(K)

Turns

when

multiplication

division

performed

toudh-

ing

(gE.

im}

)

key,

and

multiplicand

divisor

mem

constant

number

automatically.

This

indicator

turned

off

when

the

touched

after

multiplication

division.

(Refer

page

“4.

Constant

multiplication

and

division”

for

further

detai

LOWER

DIGITS

INDICATOR

BATTERY

LEVEL

INDICATOR

(+)

Turns

when

the

lower

digits

double

capacity

are

displa’

touching

the

key

and

turns

off

when

the

upper

digits

displayed.

Also,

turns

when

calculations

can’t

performed

the

decrease

the

battery

voltage.

this

case,

the

indicator

will

not

turn

off

even

when

io}

key

touched

and

miscalculation

occurs.

(e)

MEMORY

INDICATOR

(I)

Turns

on,

when

the

content

memory

not

zero.

(f)

POWER

SWITCH

—

OFF

position.

(a)

When

adaptor

connected

with

calculating

unit

and

power

source:

position:

You

can

operate

power

and

the

battery

unit

will

charged

during

operation.

The

charging

lamp

indicates

all

times.

Even

when

the

power

cord

disconnected

during

operation

the

case

momentary

—o4

power

failure,

the

operation

can

continued

battery

power

without

mis-

calculation

because

power

source

exchanged

the

battery

power

automatical-

ly.

these

cases,

the

charging

lamp

turns

off.

OFF

position:

Performed

rapid

charging.

(Refer

page

“Rapid

charging’)

(b)

When

adaptor

not

connected

with

calculating

unit:

cal

position:

You

can

operate

battery

power.

OFF

position:

The

calculating

unit

not

operated.

(c)

When

adaptor

connected

with

calculating

unit

and

not

connected

with

power

source:

position:

You

can

operate

battery

power

and

charging

lamp

adaptor

does

not

indicate.

OFF

position:

The

calculating

unit

not

operated.

KEY

IDENTIFICATION

Clear

key

Depressed

once

after

entry,

clears

only

the

entry.

When

mistaken

number

entered

after

setting

function

+),

also

clears

the

function.

Depressed

twice

clears

all

the

contents

except

memory

[o}

Numeral

keys

Used

for

entering

numbers.

Decimal

point

key

Determines

the

decimal

point

position.

Change

sign

key

Changes

the

sign

the

displayed

number.

Multiplication

key

Orders

multiplication

and

starts

operation

when

chain

calculations

are

performed.

Division

key

Orders

division

and

starts

operation

when

chain

calculations

are

performed.

Plus-equal

key

Orders

addition.

Also

derives

product

quotient

with

double

capacity.

[-=|

Minus-equal

key

Orders

subtraction.

Also

derives

product

quotient

with

double

capacity

the

case

negative

multiplier

divisor,

Depressed

after

multiplication

division,

clears

the

constant

mode

function.

Memory

recall/Clear

memory

key

Depressed

once

summons

the

contents

memory

the

display

panel.

Depressed

twice

successively,

clears

the

contents

memory.

Memory-plus

key

Without

multiplication

division

function:

Orders

add

the

displayed

figures

the

contents

memory

With

multiplication

division

function:

Orders

multiplication

division

and

adds

its

product

quotient

the

contert

memory

Upper

Lower

digits

recall

key

Depressed

once

the

answer

double

capacity,

summons

the

lower

digits

the

answer

the

display

panel.

Depressed

twice

successively,

summons

the

upper

digits

again.

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