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®
MODEL
QS-2130
ELECTRONIC CALCULATOR
OPERATION MANUAL
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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 eq
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THE KEYBOARD Solar cell 22 5 1 2 3 4 7 6 9 21 11 12 17 8 13 14 15 18 10 16 19 20 2
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OPERATING CONTROLS CONSTANT MODE SELECTOR: 1 “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 • ROUNDING SELECTOR: 2 “ ” position: In multiplication and division, an answer is rounded up. “5/4” position: In multipl
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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 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 a
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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). RIGHT SHIFT KEY:
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CHANGE SIGN KEY: 11 Changes the sign of a number from a positive to a negative or a negative to a positive. Positive Negative Example: 5 → 5.– POWER ON/CLEAR KEY: 12 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: 13 0 00 9 Used to enter numbers.
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DIVISION KEY: 19 Orders division. MULTIPLICATION KEY: 20 Orders multiplication. 1ST MEMORY KEYS: 21 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.
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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 cal
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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 t
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(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
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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 125 350 Addition & subtraction 125 + 350 + 25 = 0 • • 250 500. Addition and 250 450 2.50 + 4.50 − 3.00 = A • • 00 subtraction with 3 4.00 add mode Note: The key was not used in the entries. Repeat addition and 12 + 12 + 12 + 12 K0 • subtraction 45 − 10 − 10 = 45 10 61. 12 45
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CALCULATION EXAMPLE OPERATION DISPLAY 2 2 × 2 = 2 = 0 2 4. • • Square and power calculations 3 2 × 2 × 2 = 2 = K0 2 8. • 1 Reciprocal calculation = F 7 0.14285714285 • • 7 — Square root √ 7 = F 7 2.64575131106 • • calculation 295 × 8 = 295 8 2’360. K0 • 295 × 6 = 6 1’770. Constant calculations 18 ÷ 2 = 18 2 9. K0 • 12 ÷ 2 = 12 6 6. 650 × 15% = 2 650 15 97.50 • • Percent calculations 123 ÷ 1368 = (%) 5/4, 2 123 1368 8.99 • • 12
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CALCULATION EXAMPLE OPERATION DISPLAY Before beginning, depress the key to clear the contents of the memory register. • M 135 × $4.00 = ?(1) 135 4 540.00 (1) M 150 × 7.75 = ?(2) 2 ∑ 150 7.75 1’162.50 (2) • M 450 × 3.45 = ?(3) 450 3.45 1’552.50 (3) M = ?(4) 3’255.00 (4) Memory calculations M 30 + 4 = ?(1) 30 4 34.00 (1) M 15 − 3 = ?(2) 2 15 3 12.00 (2) • • M 02 × 10 = ?(3) 2 10 20.00 (3) M = ?(4) 66.00 (4) 650 25 162.50 650 + (650 × 25%) = 2 • • 812.50 Add-on/discount calculati
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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 8160 Selling price = = Grossprofit = – 8160 = ➀ ➁ 15 15 1 – 1 – 100 100 ENTER DEPRESS DISPLAY 8160 8’160. 15 9’600.00 ➀ 1’440.00 ➁ 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 o
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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
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USING THE 2ND MEMORY (874 − 557) × (7 + 8) EXAMPLE: = (1746 + 876) ÷ (12 + 23) Operation Display 0. M 12 23 23. M 0. M 1746 876 2’622. M 35. M 75. M 0. M I 874 874. M I 557 * 557. M I 0. M I 7 8 15. M I 317. M I 4’755. M I 75. M I 63. * : To store a negative number, use the before the . 16
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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 d
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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. Pow
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MEMO 19
