Sharp Scientific Calculator EL-531XTB-WH Instruction Manual

1. Úvod

This manual provides detailed instructions for the proper use and maintenance of your Sharp Scientific Calculator EL-531XTB-WH. This calculator is designed for a wide range of mathematical and scientific computations, featuring a large 12-digit, 2-line LCD display and Direct Algebraic Logic (D.A.L.) for intuitive operation.

Mezi klíčové vlastnosti patří:

• Large 12-digit, 2-line LCD display
• Direct Algebraic Logic (D.A.L.) system
• 272 vestavěných funkcí
• Two operational modes: Normal and Statistical
• 8 temporary memory buttons
• 1 and 2 variable statistics capabilities
• Durable design with a gloss black finish and white accents
• Includes a protective hard case
• Twin powered: operates on solar energy with battery backup

2. Nastavení

The Sharp EL-531XTB-WH calculator is twin-powered, utilizing both solar energy and a battery backup. This ensures reliable operation in various lighting conditions.

2.1 Zdroj napájení

The calculator primarily uses solar power when sufficient light is available. For low-light conditions or when solar power is insufficient, it automatically switches to battery power. The calculator requires 1 Lithium Ion battery for backup operation. No user installation of the initial battery is typically required as it comes pre-installed.

2.2 Počáteční zapnutí

Chcete-li zapnout kalkulačku, stiskněte tlačítko ON/C button located on the top right of the keypad. The display will illuminate, showing "0" or the last calculated value. To turn off the calculator, press the VYPNUTO button, also located on the top right.

3. Návod k obsluze

This section outlines the basic operation and key functions of the Sharp EL-531XTB-WH scientific calculator.

Obrázek 3.1: Přesview of the Sharp EL-531XTB-WH Scientific Calculator. This image displays the calculator's full layout, including the LCD screen at the top, the navigation and function keys in the middle, and the numeric keypad at the bottom. The white casing surrounds the black keypad.

3.1 Direct Algebraic Logic (D.A.L.)

The calculator uses Direct Algebraic Logic (D.A.L.), which allows you to input equations exactly as they are written. For example, to calculate sin(30), you would press hřích, pak 30a konečně =.

3.2 Zobrazení a režimy

The 12-digit, 2-line LCD display shows both the input expression and the result simultaneously. The calculator supports two main modes:

• Normální režim: Used for general arithmetic, scientific, and engineering calculations.
• Statistical Mode (STAT): Used for statistical computations, including 1-variable and 2-variable statistics. To switch modes, press the MODE button and select the desired option.

3.3 Základní funkce

Common functions are directly accessible on the keypad:

• Numeric Keypad (0-9, .): For entering numbers.
• Arithmetic Operators (+, -, ×, ÷): For basic calculations.
• = (rovná se): To display the result of a calculation.
• ON/C (On/Clear): Turns the calculator on and clears the current entry.
• OFF: Vypne kalkulačku.

3.4 Vědecké funkce

The calculator includes 272 functions. Many advanced functions are accessed using the 2. F (second function) key or the ALFA klíč.

• Trigonometric Functions (sin, cos, tan): For sine, cosine, and tangent calculations. Inverse functions (sin^-1, cos^-1, tak^-1) are accessed via 2. F.
• Logarithmic Functions (log, ln): Common and natural logarithms.
• Power and Root Functions (x², x³, √, y^x): For squares, cubes, square roots, and general powers.
• Memory Functions (STO, RCL, M+, M-): Store, recall, add to, or subtract from memory. The calculator has 8 temporary memory buttons.
• Constants (π): The value of Pi.
• Angle Units (DRG): Cycles through Degree, Radian, and Gradian modes.
• Statistické funkce: Accessed via STAT VAR or within Statistical Mode for 1-variable and 2-variable statistics.

Refer to the markings above and below the keys for secondary and alpha functions.

4. Údržba

Proper care and maintenance will extend the life of your Sharp Scientific Calculator EL-531XTB-WH.

4.1 Čištění

Kalkulačku jemně otřete měkkým, suchým hadříkem. V případě odolných nečistot ji lehce otřete.ampen the cloth with water. Do not use abrasive cleaners, solvents, or harsh chemicals, as these can damage the casing nebo displej.

4.2 Skladování

When not in use, store the calculator in its protective hard case to prevent scratches and damage from impacts. Avoid exposing the calculator to extreme temperatures, high humidity, or direct sunlight for prolonged periods.

4.3 Výměna baterie

The calculator uses a Lithium Ion battery as a backup power source. While the calculator is twin-powered and relies heavily on solar energy, the battery ensures operation in low light. If the display becomes dim or erratic in low light, the battery may need replacement. Refer to the battery compartment on the back of the calculator for specific instructions on how to open and replace the battery. Ensure the calculator is turned off before attempting battery replacement.

5. Řešení problémů

If you encounter issues with your calculator, refer to the following common problems and solutions.

5.1 Calculator Does Not Turn On

• Zkontrolujte osvětlení: Ensure there is sufficient light for the solar panel to operate. Try moving the calculator to a brighter area.
• Kontrola baterie: If operating in low light, the backup battery may be depleted. Consider replacing the Lithium Ion battery.
• Press ON/C: Ujistěte se, že stisknete tlačítko ON/C tlačítko pevně.

5.2 Display Shows Error or Unexpected Results

• Vymazat záznam: Stiskněte ON/C to clear the current calculation.
• Režim kontroly: Verify that the calculator is in the correct mode (Normal or STAT) for your calculation. Press MODE změnit.
• Resetovací funkce: If the calculator behaves erratically, a full reset may be necessary. Locate the RESETOVAT button (often a small, recessed button requiring a thin object like a paperclip to press) and press it. Note that this will clear all memory and settings.

5.3 Keys Are Unresponsive

• Čisté klíče: Ensure no debris is lodged under the keys. Gently wipe the keypad.
• Cyklus napájení: Turn the calculator off and then on again.

6. Specifikace

7. Záruka a podpora

For warranty information and customer support regarding your Sharp Scientific Calculator EL-531XTB-WH, please refer to the documentation included with your product at the time of purchase. You may also visit the official Sharp website or contact Sharp customer service directly for the most up-to-date warranty terms and support resources.

You can find more information about Sharp products and support on their Amazon store page: Sharp Official Store on Amazon.ca.