Sharp EL-801 User manual

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~ WARRANTY . ~
iTHIS SHARP CALCULATOR WAS INSPECTED AND THOROUGHLY ~
;TESTED BEFORE SHIPMENT. IT IS IMPORTANT THAT THE OPERA· ~
~I··.· ~L~U.I~S.A· i.R .. o. ~~TIONS BE READ .. CA .... REF' ULL YBEFORE .. USING TH· IS.'. ~.' .• !
FOR APERIOD OF ONE OJ YEAR FROM THE DATE OF PURCHASE, ~
WE WILL REPAIR WITHOUT CHARGE, ANY PART OF THIS PRO· !
.J DUCT FOUND TO BE DEFECTIVE DUE TO MATERIALS OR WORK· ~
MANSHIP IF IT IS RETURNED TO THE PLACE OF PURCHASE. ~
AFTER ONE (1)YEAR FROM DATE OF PURCHASE, AREASONABLE i
CHARGE WILL BE MADE FOR REPAIR. i
THIS W.' ARRANTY IS V .. 'OlD .IF THISPRO.D.UCT HAS BEEN SUBJECT .. ·•
~.' TO MISUSE OR ABUSE, I MPROPER VOLTAGE, OR HAS BEEN •
~ TAMPERED OR REPAIRED BY UNAUTHORIZED PERSON.
i TlilkM~::::JTY -IS VALID ONLY IF ACCOMPANIED BY THE i
~ SALES INVOICE SHOWING DATE OF PURCHASE, MODEL AND '$;
~ SERIAL NUMBERS. i
i . ~
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CONTENT
INTRODUCTION 2
OUTSTANDING FEATURES 3
EVERY PART DESIGNATION 4
KEY IDENTIFICATION 5
INDICATION LAMP 6
PO,WER SWITCH 6
HOW TO REPLACE DRY BATTERy..................... 7
OPERATION' 8
SPECIFICATION
12

INTRODUCTION
Sharp's pioneering research and achievement in electronic engineering have finally
developed
the ultra compact and efficient machine.
Newly developed Super mini-sized calculator EL-801
is atYpical pocket-size
calculator having as many features as possible.
The unit can be operated on four UM-3 type dry batteries, and on optional
rechargeable Ni-Cd batteries.
Small sized
but has the great power.
An ideal calculator that goes anywhere with you.
2

*Super-compact, space-age sty,ling
TheE L-801 is so small it fits in the palm of the hand.
*Super-miniaturization maximizes portability
C-MOS lSI miniaturization enormously reduces overall dimensions ,and weight. locreases
reHability and efficiency.
*Constant multipncation and division
lin multiplication or division, multiplicand or divisor memorized as aconstant number
automaticaHy.
*Direct chain multiplication and division
*Repeat addition and subtraction
*Zerosuppress system
* Battery level indicator ( LED lamp)
*Minus sign indicator
*Complete floating decimal point positioning
*15 hours' operation is capable on dry battery by the adoption of CoM as.
*Multi-selection power source
• Dry battery operation fUM-.3 x4 pes)
•Rechargeable N i-Cd battery operation with optional adaptor and rechargeable battery unit.
•AC operaition while charging the rechargeable battery with the optional adaptor.
*Rapid charging
When AC power is supplied and the power switch is set at OFF position, the Ni-Cd battery
unit can be recharged rapidly in ahout 5hours. The unit can be operated for about 5hours.
3

EVERY PART DESIGNATION
Minus sign indicator
Minus-equal key
Multiplication key
Constant mode indicator
Division key
Plus-equal key
Decimal point key
Co nstant mode key
Battery level
indicator
Power switch
Numeral keys
4

KEY IDENTIFICATION
13
Used for carrying out calculations by constant.
Designates constant calculation mode by depressing E3 key and constant
mode indicator turns on. Depress the Dkey again to clear the constant
calculation mode and constant mode indicator turns off.
Clears all the contents.
m~D
a
13
I,·"tinn
Orders multiplication and starts operation when chain calculations are
performed.
Orders division and starts operation when chain calculations are performed
Derives sum, product, or quotient.
III nus
Orders subtraction. Also derives product or quotient in the case of negative
multiplier
or divisor.
5

INDICATION LAMP
Minus sign indicator
Turns on when the displayed number is negative or minus zero.
K. Constant mode indicator
Turns on when the unit is in constant calculation mode.
-8 Battery indicator
Turns on when the battery voltage is below the regular limit.
POWER SWITCH
,
t~
Push the switch down at OFF position and slide to ON position, the switch will
automatically
come out and the unit is ready for calculation.
6

HOW TO REPLACE DRY BATTERY
1. First set the power switch at OFF position.
2. Pullout the battery case grasping it as Fig.( II and set four UM·3 type dry
batteries
in the battery case. (Fig 2)
Be sure not to take the positive pole for the negative pole.
3. Replace the
battery case after setting four dry batteries. (Fig. 1)
Fig (1 )Fig (2)
7

OPERATION
•ADDITION and SUBTRACTION
EXAMPLES
123 + 456 + 789 =1.368
2
35.62 - 0.53 - 40.15 "" -5.06
OPERATION
123 II 456 II 789 II 1368
-~--------~~'----I
35.62 III .53 II 40.1511 5.06-
•SUCCESSIVE MULTIPLICATION and D,IVISION
I
•REPEAT ADDITION and SUBTRACTION
EXAMPLES
1I 345 [phone] + 789 -789 '" 444
OPERATION
34511 II 123 II II 789 rill • 444.
IEXAMPLES OPERATION
11.1 x2.2 x3.3 x 4.4 "" 35.1384 1.1£1 2.2 £I 3.3 £I 4.4 II 35.1384
~ """""",·~_·w", .•. ~ •.. ~ .. ,,,.
29.9 +8.8 -+ 7.7 -+ 6.6=0.0221369 9.908.807.7116.6 II 0.0221369
8