Zavedení
The Sharp EL-531 TH-WH is a scientific school calculator designed for a wide range of mathematical and scientific computations. It features a large 10-digit display and utilizes the Direct Algebraic Logic (D.A.L.) input method, allowing users to input equations as they are written. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your calculator.

Obrázek 1: Přední strana view of the Sharp EL-531 TH-WH Scientific Calculator, showcasing its display and key layout.
Nastavení
Instalace baterie
The Sharp EL-531 TH-WH calculator is powered by one LR44 battery, which is included. To install or replace the battery:
- Ujistěte se, že je kalkulačka zapnutá VYPNUTO.
- Najděte kryt přihrádky na baterie na zadní straně kalkulačky.
- Opatrně sejměte kryt.
- Insert the LR44 battery, ensuring the correct polarity (+/-) as indicated inside the compartment.
- Bezpečně nasaďte kryt prostoru pro baterie.
Poznámka: Proper battery installation is crucial for the calculator's functionality. If the display is dim or unresponsive, replace the battery.
Návod k obsluze
The EL-531 TH-WH uses Direct Algebraic Logic (D.A.L.) for input, allowing you to enter equations in the same order they are written.
Základní funkce
- Zapnutí/vypnutí: Stiskněte ON/C to turn on. The calculator features auto power off to conserve battery.
- Jasný: Stiskněte CA vymazat všechny výpočty a paměť.
- Last Digit Correction: Use the navigation keys to retrieve and edit entries, or delete the last digit.
- Last Result Storage (ANS): Recall the result of the previous calculation.
- Funkce paměti: STO (Store), RCL (Recall), M+ (Add to Memory), M- (Subtract from Memory). The calculator has 9 memory registers.
- Aritmetické operace: Perform addition (+), subtraction (–), multiplication (×), division (÷), and percentage (%).
Výpočty
- Konstantní výpočty: Perform calculations with a repeating constant.
- Chain Calculation: Execute a series of operations sequentially.
- Decimal Place Programming: Set the number of decimal places (FIX), scientific notation (SCI), or engineering notation (ENG).
Číselné soustavy
- Výpočty: Perform operations in Binary (BIN), Octal (OCT), Decimal (DEC), Hexadecimal (HEX), and Penary (PEN) number systems.
- Konverze: Convert numbers between BIN, OCT, DEC, HEX, and PEN.
- Logické operace: AND, OR, NOT, NEG, XOR.
Scientific Features
- Goniometrické funkce: sin, cos, tan, and their inverse functions.
- Hyperbolické funkce: sinh, cosh, tanh, and their inverse functions.
- Logaritmické a exponenciální funkce: ln, log, ex, 10x.
- Mocnina a odmocninové funkce: x2, x3, xy, x-1, √, 3√, x√.
- Konstanty: π (pi).
- Permutations and Combinations: nPr, nCr.
- Random Number Generator.
- Konverze: Fraction-decimal, polar-right angle, decimal-hexadecimal, angle measure (DEG/RAD/GRAD).
Statistics Functions
- Statistické výpočty: One-variable and two-variable statistics.
- Opatření: Standard deviation, average.
- Regressions: Linear and other regression types (up to 6).

Figure 2: The calculator with its protective cover, demonstrating its compact design and key layout for various functions.
Údržba
To ensure the longevity and optimal performance of your Sharp EL-531 TH-WH calculator, follow these maintenance guidelines:
- Čištění: Use a soft, dry cloth to clean the calculator's exterior. Do not use abrasive cleaners, solvents, or spray directly onto the calculator.
- Skladování: Store the calculator in a cool, dry place away from direct sunlight, extreme temperatures, and high humidity. Always use the protective lid when not in use to prevent damage to the keys and display.
- Péče o baterie: If the calculator will not be used for an extended period, it is recommended to remove the battery to prevent leakage.
- Zacházení: Avoid dropping the calculator or subjecting it to strong impacts, as this can damage internal components.
Odstraňování problémů
If you encounter issues with your Sharp EL-531 TH-WH calculator, refer to the following common problems and their solutions:
- Kalkulačka se nezapne:
- Zkontrolujte, zda je baterie správně vložena se správnou polaritou.
- Vyměňte baterii LR44 za novou.
- Displej je tmavý nebo prázdný:
- Baterie může být vybitá. Vyměňte baterii LR44.
- Ensure the calculator is not exposed to extreme temperatures.
- Nesprávné výsledky výpočtu:
- Stiskněte CA to clear all previous calculations and memory.
- Verify the input method and ensure you are using the correct functions for your calculation.
- Check the angle mode (DEG/RAD/GRAD) for trigonometric calculations.
- Klávesy nereagují:
- Ujistěte se, že se pod klávesami nenacházejí žádné nečistoty.
- Zkuste stisknout RESETOVAT button (if available, usually a small recessed button requiring a thin object like a paperclip).
If problems persist, please refer to the official Sharp support resources.
Specifikace
| Funkce | Detail |
|---|---|
| Číslo modelu | SH-EL531THWH |
| Značka | Ostrý |
| Typ kalkulačky | Vědecké / Technické |
| Zobrazit | 2-line, 10-digit display with D.A.L. input |
| Velikost obrazovky | 9 cm (4 inches visible diagonal) |
| Zdroj napájení | 1 x LR44 Battery (included) |
| Rozměry (D x Š x V) | 6.34 x 3.15 x 0.59 palce (80 x 161 x 15 mm) |
| Hmotnost | 4.1 unce (110 g) |
| Počet funkcí | 273 |
| Paměťové registry | 9 |
| Vlastnosti | Auto power off, Plastic buttons, Protective lid |
Podpora a zdroje
For additional support, detailed manuals, or frequently asked questions, please visit the official Sharp Calculators webmísto:
www.sharp-calculators.com/manuals
Výrobce: Sharp Corporation