Sharp COMPET QS-2130, QS 2130 - Twin Powered Display 12 Digit Operation Manual

QS-2130

ELECTRONIC CALCULATOR

OPERATION MANUAL

MODEL

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.

THE KEYBOARD

Solar cell

4

3

1 2

5

22

OPERATING CONTROLS

1

CONSTANT MODE SELECTOR:

“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

2

ROUNDING SELECTOR:

“ ” position: In multiplication and division, an answer is rounded up.

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

A. Enter 12 3 Read 12.30

B. Enter 123 Read 123.

1 00 12’300.00

C. Enter 2 Read 2.

3 0.67

4

ACCUMULATION SELECTOR:

“∑” 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.

7

ITEM COUNT KEY:

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).

8

RIGHT SHIFT KEY:

Operation of this key in entering numbers or calculated result shifts the number one

11

CHANGE SIGN KEY:

Changes the sign of a number from a positive to a negative or a negative to a positive.

Positive Negative

Example: 5 → 5.–

12

POWER ON/CLEAR KEY:

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

•

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

13

0

00

to

9

NUMERAL KEYS:

Used to enter numbers.

14

DECIMAL POINT KEY:

Inputs the decimal place when depressed before or after a numeric entry.

19

DIVISION KEY:

Orders division.

20

MULTIPLICATION KEY:

Orders multiplication.

21

1ST MEMORY KEYS:

These keys have access to the 1st memory register to store, calculate and recall
numbers for further use.

MEMORY PLUS : When depressed after a numeric key or a calculation this key adds

the numbers or the result to the 1st memory register.

MEMORY MINUS : When depressed after a numeric key or a calculation this key

subtracts the numbers or the result from the 1st memory register.

RECALLMEMORY : Displays the contents stored (the answer) in the 1st memory

POWER SUPPLY

This calculator has a solar cell and is energized by electrical energy produced by the solar cell. The
solar cell converts luminous energy directly into electrical energy by utilizing the photovoltaic effect.

Brightness for operation

If the light exposed to the solar cell is insufficient, the calculator is not powered to operate.
With the brightness criterion below, operate the calculator at 150 Iux or more.

Outdoors or by the window: Incandescent lamp: Fluorescent lamp:

Replacing the Backup Battery

The backup battery can support the solar cell for approximately seven years at room temperature
(20°C/68°F).
If a weak battery is left in the calculator, the memory contents may be lost.

When to replace:

•

At least once every seven years, even if the calculator is functioning properly.

•

The memory contents become null.

•

The display dims in dark places.

•

The display will not appear in insufficient lighting by pressing the key after the power is
automatically turned off.

How to replace:

CALCULATION EXAMPLES

NOTE: ■ Depress the key prior to beginning any calculation.

If nothing appears on the display during calculation do not continue making entries.

CALCULATION EXAMPLE OPERATION DISPLAY

Addition & subtraction 125 + 350 + 25 =

•

0

•

125 350
250 500.

CALCULATION EXAMPLE OPERATION DISPLAY

2

× 2 = 2

2

=

•

0

•

2 4.

2

× 2 × 2 = 2

3

= K0

•

2 8.

•

F

•

7 0.14285714285

√

—

7 =

•

F

•

7 2.64575131106

295

× 8 =

K0

•

295 8 2’360.

295

× 6 = 6 1’770.

Square root
calculation

Reciprocal calculation

Square and
power calculations

1
7

=

CALCULATION EXAMPLE OPERATION DISPLAY

•

Before beginning, depress the key to clear the contents of the memory register.

135 × $4.00 = ?(1) 135 4 540.00

M (1)

150

× 7.75 = ?(2)

•

2 ∑ 150 7.75 1’162.50

M (2)

450

× 3.45 = ?(3) 450 3.45 1’552.50

M (3)

= ?(4) 3’255.00

M (4)

30 + 4 = ?(1) 30 4 34.00

M (1)

15

− 3 = ?(2)

•

2

•

15 3 12.00

M (2)

Memory calculations

PERCENT MARK-UP BASED ON COST ( )

Calculate the selling price and the gross profit from the cost of $8,160 on the basis of a 15% profit on
the selling price.

Calculation method:

Selling price = =

➀

Grossprofit = – 8160 =

➁

ENTER DEPRESS DISPLAY

8160 8’160.

15 9’600.00

➀

8160

15

100

1 –

8160

15

100

1 –

AVERAGING

Calculate the average of a series of values.

EXAMPLE: Day Sales

Monday ............................................................ $123.15

Tuesday ........................................................... 118.00

Wednesday ..................................................... 131.58

Thursday ......................................................... 125.02

Friday .............................................................. 158.25

Total Sale $656.00 for 5 days

Average Sales = $131.20 ........

➂➀➁

Note: If you are working in dollars and cents, use the “Add Mode.” If not, set the decimal as desired.

USING THE 2ND MEMORY

EXAMPLE:

(874 − 557) × (7 + 8)

(1746 + 876) ÷ (12 + 23)

=

Operation Display

0.

12 23 23.

M

0.

M

1746 876 2’622.

M

ERRORS

There are several situations which will cause an overflow or an error condition.
When this occurs, an error symbol “E” will be displayed.
The , or key must be pushed to restart the calculation.
The contents of the memory at the time of the error are retained.

1. Entry of more than 12 digits.
(The first 12 digits of an entry number and an error symbol “E” are displayed. In this case depress
the or key.)

2. When the integer portion of an answer exceeds 12 digits and does not exceed 24 digits

OVER FLOW CALCULATION

Ex. Set the decimal at “F”

SPECIFICATIONS

Type: Electronic calculator
Operating capacity: 12 digits
Decimal point: Read in: Floating up to 11 decimal places

Result: Decimal-Set (F, 3, 2, 0) with add mode

Calculations: Four arithmetic calculations, Constant calculation, Add mode in addition and

subtraction, Square calculation, Chain calculation, Power calculation,
Percent calculation, Reciprocal calculation, Add-on calculation, Discount
calculation, Memory calculation, Square root calculation, Mark-up
calculation, etc.

Power supply : Built-in solar cell and lithium battery

SHARP will not be liable nor responsible for any incidental or consequential economic or property
damage caused by misuse and/or malfunctions of this product and its peripherals, unless such
liability is acknowledged by law.

MEMO