Sharp Calculator QS 2130 User Manual

®
MODEL  
QS-2130  
ELECTRONIC CALCULATOR  
OPERATION MANUAL  
 
THE KEYBOARD  
Solar cell  
22  
5
1
2
3
4
7
9
6
21  
11  
12  
17  
18  
19  
20  
8
13  
15  
16  
14  
10  
 
2
OPERATING CONTROLS  
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.  
The calculator will automatically remember the second number entered  
1
Division:  
(the divisor) and the  
Neutral  
instruction.  
“ ” position:  
ROUNDING SELECTOR:  
“ ” position: In multiplication and division, an answer is rounded up.  
5/4position: 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.  
2
3
DECIMAL/ADD MODE SELECTOR:  
1. Decimal position (F, 3, 2, 0)  
Presets the number of decimal places in the answer.  
In the Fposition, 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  
B. Enter  
12  
3
123  
00  
Read  
Read  
12.30  
123.  
1
12300.00  
2.  
C. Enter  
2
Read  
3
0.67  
ACCUMULATION SELECTOR:  
position: This selector will accumulate the following:  
4
1. Numbers entered or answers obtained with the  
be accumulated in the 1st memory register.  
and  
keys will  
2. Numbers entered or answers obtained with the  
subtracted from the 1st memory register.  
key will be  
“ ” position: Neutral  
2ND MEMORY KEYS:  
5
6
MEMORY PLUS  
: Adds an entry or an answer to the 2nd memory. This key  
also serves as the key when accumulating product  
and/or quotients in the 2nd memory.  
RECALL-CLEAR MEMORY  
: Pressed once, recalls the contents of the 2nd  
memory to the display. Pressed twice, recalls  
and clears the contents of the 2nd memory.  
CLEAR ALL KEY:  
Before starting calculation, press this key. This causes the numerical values and  
calculation commands including memory contents to be cleared.  
 
4
ITEM COUNT KEY:  
7
The counter will count the number of times that the  
addition.  
key has been depressed in the  
Note: Each time the  
count.  
key is used in the subtraction, 1 will be subtracted from the  
When the  
key is pressed once, the number stored is displayed and may be used for  
key twice. The counter has the  
further calculation. To clear the counter, press 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
9
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:  
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  
Mis-entry  
34  
46.  
(12 + 34 =)  
 
5
CHANGE SIGN KEY:  
Changes the sign of a number from a positive to a negative or a negative to a positive.  
11  
12  
Positive  
5
Negative  
5.–  
Example:  
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.  
to  
NUMERAL KEYS:  
Used to enter numbers.  
0
00  
9
13  
14  
DECIMAL POINT KEY:  
Inputs the decimal place when depressed before or after a numeric entry.  
Example:  
7 0.7  
MINUS EQUALS KEY:  
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.  
15  
16  
PLUS EQUALS KEY:  
Adds the number to the contents of the calculation register. This key is also used to  
obtain the results in multiplication and division.  
MULTIPLE USE KEY:  
Used to perform mark-up, percent change and automatic add-on/discount.  
17  
18  
PERCENT KEY:  
Permits entry of actual percentages rather than their decimal equivalents for percent  
calculations.  
Example: Set decimal at 2  
150  
25  
37.50  
 
6
DIVISION KEY:  
Orders division.  
19  
20  
21  
MULTIPLICATION KEY:  
Orders multiplication.  
1ST MEMORY KEYS:  
These keys have access to the 1st memory register to store, calculate and recall  
numbers for further use.  
MEMORY PLUS  
MEMORY MINUS  
RECALLMEMORY  
:
:
:
When depressed after a numeric key or a calculation this key adds  
the numbers or the result to the 1st memory register.  
When depressed after a numeric key or a calculation this key  
subtracts the numbers or the result from the 1st memory register.  
Displays the contents stored (the answer) in the 1st memory  
register on the display. It does not clear the contents, but recalls the  
answer to the display.  
CLEAR MEMORY  
:
Clears the entire contents of the 1st memory register only.  
DISPLAY  
22  
:
:
:
:
1st memory symbol  
Appears when a number is in the 1st memory.  
Minus symbol  
Appears when a number is a negative.  
Error symbol  
Appears when an overflow or an error is detected.  
2nd memory symbol  
Appears when a number is in the 2nd memory.  
 
7
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:  
Use the calculator where it is  
not exposed to direct sunlight  
but receives enough illumi-  
nation for comfortable read-  
ing.  
Use the calculator wherever  
it receives the same illumi-  
nation as attained within 1.5  
meters of a 15 Watts fluores-  
cent lamp.  
Use the calculator wherever it  
receives the same illumi-  
nation as attained within 2.5  
meters of a 100 Watts in-  
candescent lamp.  
Backup Battery  
If the light exposed to the solar cell is insufficient (150 Iux or lower), the backup battery is turned on  
automatically to operate the calculator.  
 
8
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  
automatically turned off.  
key after the power is  
How to replace:  
1. Turn the calculator face down with the folding support at the bottom. Lift the support up.  
2. Pressing lightly on the battery cover, slide the cover off in the direction of the arrow. See Fig. 1.  
3. Place a pointed object in the space shown in Fig. 2 and, using the object as a lever, Iift the battery  
out.  
4. Install the new battery with the side up as shown in Fig. 3.  
5. Place the battery cover down as shown in Fig. 4.  
6. Slide the cover in the direction shown in Fig. 5 until it clicks into place.  
 
9
(Fig. 1)  
(Fig. 2)  
(Fig. 3)  
(Fig. 4)  
(Fig. 5)  
“MEMORY SAFE GUARD” function The contents of the memory are retained even when the  
calculator is turned off. A value stored in memory will thus remain until it is changed or until the  
backup battery runs out.  
Automatic Power-Off function (A.P.O.):  
This calculator is automatically turned off approximately 7 minutes after the last key operation to  
save the battery.  
 
10  
CALCULATION EXAMPLES  
I
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  
125  
250  
350  
450  
Addition & subtraction 125 + 350 + 25 =  
0
500.  
Addition and  
subtraction with  
250  
3
2.50 + 4.50 3.00 =  
A
00  
4.00  
Note: The  
key was not used in the entries.  
add mode  
12 + 12 + 12 +  
12  
45  
Repeat addition and  
subtraction  
K
0
0
F
45 10 10 =  
10  
61.  
42120.  
14.  
12  
78  
45  
12 × 45 × 78 =  
Multiplication and  
division  
840  
150  
4
840 ÷ 4 ÷ 15 =  
 
11  
CALCULATION  
Square and  
EXAMPLE  
OPERATION  
DISPLAY  
2 × 2 = 22 =  
2 × 2 × 2 = 23 =  
0
0
2
2
4.  
8.  
K
power calculations  
1
Reciprocal calculation  
=
7
F
F
0
0
7
7
0.14285714285  
2.64575131106  
K
Square root  
calculation  
7 =  
295 × 8 =  
295  
8
6
2360.  
1770.  
295 × 6 =  
Constant calculations  
Percent calculations  
18 ÷ 2 =  
18  
12  
2
6
9.  
6.  
K
12 ÷ 2 =  
650 × 15% =  
2
2
650  
123  
15  
97.50  
8.99  
123 ÷ 1368 = (%)  
5/4,  
1368  
 
12  
CALCULATION  
EXAMPLE  
OPERATION  
DISPLAY  
Before beginning, depress the  
key to clear the contents of the memory register.  
135 × $4.00 = ?(1)  
135  
150  
450  
4
7.75  
3.45  
540.00M (1)  
1162.50M (2)  
1552.50M (3)  
3255.00M (4)  
150 × 7.75 = ?(2)  
2
2
450 × 3.45 == ??((34))  
Memory calculations  
30 + 4 = ?(1)  
15 3 = ?(2)  
02 ×10 = ?(3)  
= ?(4)  
30  
4
34.00M (1)  
12.00M (2)  
20.00M (3)  
66.00M (4)  
15  
3
2
10  
650  
650  
25  
25  
162.50  
812.50  
650 + (650 × 25%) =  
2
2
Add-on/discount  
calculation  
162.50  
487.50  
650 (650 × 25%) =  
 
13  
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:  
8160  
15  
100  
8160  
15  
100  
Selling price =  
=
Grossprofit =  
8160 =  
I
I
1 –  
1 –  
ENTER  
DEPRESS  
DISPLAY  
8160  
15  
8160.  
9600.00  
1440.00  
I
I
PERCENT MARK-UP BASED ON SELLING PRICE (  
)
Calculate the cost and the gross profit from the selling price of $9,780 on the basis of 20% profit of  
the cost.  
Calculation method:  
9780  
20  
100  
9780  
20  
100  
Cost =  
=
Grossprofit = 9780 –  
=
I
I
1 +  
1 +  
ENTER  
DEPRESS  
DISPLAY  
9780  
20  
9780.  
8150.00  
I
I
1630.00  
 
14  
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 ........  
I
I
I
Note: If you are working in dollars and cents, use the Add Mode.If not, set the decimal as desired.  
OPERATION  
DISPLAY  
NOTE  
0.  
123.15  
241.15  
372.73  
497.75  
656.00  
5.  
12315  
118 00  
13158  
12502  
15825  
I
I
I
131.20  
 
15  
USING THE 2ND MEMORY  
(874 557) × (7 + 8)  
(1746 + 876) ÷ (12 + 23)  
EXAMPLE:  
=
Operation  
Display  
0.  
M
12  
23  
23.  
M
0.  
M
1746  
876  
2622.  
M
35.  
75.  
M
M
0.  
M I  
M I  
M I  
M I  
M I  
M I  
M I  
M I  
874  
557  
874.  
557.  
0.  
*
7
8
15.  
317.  
4755.  
75.  
63.  
* : To store a negative number, use the  
before the  
.
 
16  
ERRORS  
There are several situations which will cause an overflow or an error condition.  
When this occurs, an error symbol Ewill 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 Eare 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”  
908770000000  
.0326  
27.8763803680E  
27.8763803680  
24363.9564416  
874  
(24,363.9564416 × 1,000,000,000,000 = 24,363,956 441,600,000)  
3. When the integer portion of the quotient in percentage calculation is 25 digits.  
(Ex. 100000000000  
4. When any number is divided by zero (Ex. 5  
5. When the contents of the memory exceed 12 integers.  
(Ex. 999999999999  
6. When the square root of a negative number is calculated. (Ex. 5  
0.00000000001  
)
0
).  
1
)
)
 
17  
SPECIFICATIONS  
Type:  
Electronic calculator  
Operating capacity:  
Decimal point:  
12 digits  
Read in: Floating up to 11 decimal places  
Result: Decimal-Set (F, 3, 2, 0) with add mode  
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.  
Calculations:  
Power supply :  
Built-in solar cell and lithium battery  
(3V ... (DC) CR2032 × 1)  
Approx. 7 min.  
Automatic Power-off:  
Operating temperature: 0°C ~ 40°C (32°F to 104°F)  
Dimensions:  
185(W) × 175(D) × 18(H) mm  
7-9/32(W) x 6-7/8(D) x 23/32(H)  
Approx. 290 g ( 0.64 lb.) (with battery, without a soft case)  
Lithium battery (installed), Soft case, Operation manual  
Weight:  
Accessories:  
 
18  
MEMO  
 
19  
MEMO  
 
20  
SHARP ELECTRONICS CORPORATION  
Sharp Plaza, Mahwah, New Jersey 07430-2135  
SHARP CORPORATION  
PRINTED IN CHINA  
00LT(TINSE0433THZZ)  
 

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