Sharp QS-2130 User Manual

®

MODEL

ELECTRONIC CALCULATOR

OPERATION MANUAL

QS-2130

OPERATIONAL NOTES

Thank you for your purchase of the SHARP electronic calculator, model QS-2130.
To insure trouble-free operation of your SHARP calculator, we recommend the following:

1. The calculator should be kept in areas free from extreme temperature changes, moisture, and
dust.

2. A soft, dry cloth should be used to clean the calculator. Do not use solvents or a wet cloth.

3. The solar cell is delicate. It should not be pressed or tampered with.

4. If service should be required on this equipment, use only a SHARP servicing dealer, a SHARP
approved service facility or SHARP repair service where available.

This calculator has a folding support so it can be positioned easily

on the desk for a good operating angle.
(See diagram)

Please press the key whenever you see no indication, or meaningless display figures or
signs in the display or the keys do not function despite sufficient light.

CONTENTS

Page Page

THE KEYBOARD .............................................. 2 CALCULATION EXAMPLES ........................... 11

OPERATING CONTROLS................................. 3 ERRORS ......................................................... 17

POWER SUPPLY .............................................. 8 SPECIFICATIONS .......................................... 18

1

Solar cell

THE KEYBOARD

22

431 2

7
9

11

12

13

8

10

2

14

15

16

17
18
19

20

5

6

21

OPERATING CONTROLS

CONSTANT MODE SELECTOR:

1

ROUNDING SELECTOR:

2

DECIMAL/ADD MODE SELECTOR:

3

“K” position: The following constant functions will be performed.
Multiplication: The calculator will automatically remember the first number entered

(the multiplicand) and the instruction.

Division: The calculator will automatically remember the second number entered

(the divisor) and the instruction.

“•” position: Neutral

“ ” position: In multiplication and division, an answer is rounded up.
“5/4” position: In multiplication and division, an answer is rounded off.
“ ” position: An answer is rounded down.

Note: In addition and subtraction or floating decimal mode, an answer is rounded

down.

1. Decimal position (F, 3, 2, 0)
Presets the number of decimal places in the answer.
In the “F” position, the answer is displayed in the floating decimal system.

2. Add mode position (A):
The decimal point in addition and subtraction entries is automatically positioned to
the 2nd digit from the lowest digit of an entry number. Use of the add mode permits
addition and subtraction of numbers without an entry of the decimal point. Use of the

, and keys will automatically override the Add Mode and decimally correct

answers will be displayed.

3

Example: Set decimal/add mode selector at A, 5/4

A . Enter 12 3 Read 12.30
B. Enter 123 Read 123.

C. Enter 2 Read 2.

ACCUMULATION SELECTOR:

4

“∑” position: This selector will accumulate the following:

1. Numbers entered or answers obtained with the and keys will
be accumulated in the 1st memory register.

2. Numbers entered or answers obtained with the key will be
subtracted from the 1st memory register.

“•” position: Neutral

2ND MEMORY KEYS:

5

MEMORY PLUS : Adds an entry or an answer to the 2nd memory. This key

RECALL-CLEAR MEMORY : Pressed once, recalls the contents of the 2nd

CLEAR ALL KEY:

6

Before starting calculation, press this key. This causes the numerical values and
calculation commands including memory contents to be cleared.

4

1 00 12’300.00

3 0.67

also serves as the key when accumulating product
and/or quotients in the 2nd memory.

memory to the display. Pressed twice, recalls
and clears the contents of the 2nd memory.

ITEM COUNT KEY:

7

The counter will count the number of times that the key has been depressed in the
addition.
Note: Each time the key is used in the subtraction, 1 will be subtracted from the

count.
When the key is pressed once, the number stored is displayed and may be used for
further calculation. To clear the counter, press the key twice. The counter has the
capacity of a maximum of 3 digits (up to 999). If the count exceeds 999, the counter
recounts from 0 (Zero).

RIGHT SHIFT KEY:

8

Operation of this key in entering numbers or calculated result shifts the number one
digit to the right together with a decimal point. Used for one digit correction.

SQUARE ROOT KEY:

9

Depressed after a number or calculation, calculates the square root of that entry and/or
displayed numbers.
An answer is displayed in the floating decimal system.

Example: 5 → 2.23606797749

CLEAR ENTRY KEY:

10

Clears a number which has been entered into the machine prior to use of a function
key.
Example: Set decimal at 0

12 43 34 → 46.

Mis-entry

(12 + 34 =)

↑

5

CHANGE SIGN KEY:

11

POWER ON/CLEAR KEY:

12

0 00 to

13

DECIMAL POINT KEY:

14

MINUS EQUALS KEY:

15

PLUS EQUALS KEY:

16

MULTIPLE USE KEY:

17

PERCENT KEY:

18

6

Changes the sign of a number from a positive to a negative or a negative to a positive.
Example: 5 → 5.–

Clears the contents of the calculator, excluding the memory register.

•

Inputs the decimal place when depressed before or after a numeric entry.
Example: 7 → 0.7

Subtracts the number from the contents of the calculation register. This key is also used
to obtain the product/quotient in negative multiplication and division.

Adds the number to the contents of the calculation register. This key is also used to
obtain the results in multiplication and division.

Used to perform mark-up, percent change and automatic add-on/discount.

Permits entry of actual percentages rather than their decimal equivalents for percent
calculations.
Example: Set decimal at 2

Positive Negative

Press the key whenever there are no display indicators, meaningless display
figures or signs appear or the keys do not function despite sufficient light.

NUMERAL KEYS:

9

Used to enter numbers.

150 25 → 37.50