Uvod
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.

Slika 1: Prednja strana view of the Sharp EL-531 TH-WH Scientific Calculator, showcasinnjegov prikaz i raspored tipki.
Setup
Instalacija baterije
The Sharp EL-531 TH-WH calculator is powered by one LR44 battery, which is included. To install or replace the battery:
- Provjerite je li kalkulator uključen OFF.
- Pronađite poklopac odjeljka za baterije na stražnjoj strani kalkulatora.
- Pažljivo skinite poklopac.
- Umetnite LR44 bateriju, pazeći na ispravan polaritet (+/-) kao što je naznačeno unutar odjeljka.
- Vratite sigurno poklopac odeljka za baterije.
Napomena: Proper battery installation is crucial for the calculator's functionality. If the display is dim or unresponsive, replace the battery.
Uputstvo za upotrebu
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.
Osnovne funkcije
- Uključivanje/isključivanje: Pritisnite ON/C to turn on. The calculator features auto power off to conserve battery.
- jasno: Pritisnite CA to clear all calculations and memory.
- 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.
- Memorijske funkcije: STO (Store), RCL (Recall), M+ (Add to Memory), M- (Subtract from Memory). The calculator has 9 memory registers.
- Aritmetičke operacije: Perform addition (+), subtraction (–), multiplication (×), division (÷), and percentage (%).
Kalkulacije
- Konstantni proračuni: 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).
Sistemi brojeva
- Izračuni: Perform operations in Binary (BIN), Octal (OCT), Decimal (DEC), Hexadecimal (HEX), and Penary (PEN) number systems.
- Konverzije: Convert numbers between BIN, OCT, DEC, HEX, and PEN.
- Logičke operacije: AND, OR, NOT, NEG, XOR.
Scientific Features
- Trigonometrijske funkcije: sin, cos, tan, and their inverse functions.
- Hiperboličke funkcije: sinh, cosh, tanh, and their inverse functions.
- Logaritamske i eksponencijalne funkcije: ln, log, ex, 10x.
- Funkcije potencije i korijena: x2, x3, xy, x-1, √, 3√, x√.
- Konstante: π (pi).
- Permutacije i kombinacije: nPr, nCr.
- Random Number Generator.
- Konverzije: Fraction-decimal, polar-right angle, decimal-hexadecimal, angle measure (DEG/RAD/GRAD).
Statistics Functions
- Statistički proračuni: One-variable and two-variable statistics.
- mjere: 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.
Održavanje
To ensure the longevity and optimal performance of your Sharp EL-531 TH-WH calculator, follow these maintenance guidelines:
- čišćenje: Use a soft, dry cloth to clean the calculator's exterior. Do not use abrasive cleaners, solvents, or spray directly onto the calculator.
- Skladištenje: 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.
- Održavanje baterije: If the calculator will not be used for an extended period, it is recommended to remove the battery to prevent leakage.
- Rukovanje: Avoid dropping the calculator or subjecting it to strong impacts, as this can damage internal components.
Rješavanje problema
If you encounter issues with your Sharp EL-531 TH-WH calculator, refer to the following common problems and their solutions:
- Kalkulator se ne uključuje:
- Check if the battery is correctly installed with the proper polarity.
- Zamijenite LR44 bateriju novom.
- Ekran je taman ili prazan:
- The battery may be low. Replace the LR44 battery.
- Ensure the calculator is not exposed to extreme temperatures.
- Netačni rezultati izračuna:
- Pritisnite CA da biste izbrisali sve prethodne proračune i memoriju.
- 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.
- Tipke ne reagiraju:
- Pazite da se ispod tipki ne zaglave ostaci.
- Pokušajte da pritisnete RESET 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.
Specifikacije
| Feature | Detalj |
|---|---|
| Broj modela | SH-EL531THWH |
| Brand | Sharp |
| Tip kalkulatora | Scientific / Engineering |
| Display | 2-line, 10-digit display with D.A.L. input |
| Veličina ekrana | 9 cm (4 inches visible diagonal) |
| Izvor napajanja | 1 x LR44 baterija (uključena) |
| Dimenzije (D x Š x V) | 6.34 x 3.15 x 0.59 inča (80 x 161 x 15 mm) |
| Težina | 4.1 unci (110 g) |
| Broj funkcija | 273 |
| Memorijski registri | 9 |
| Karakteristike | Auto power off, Plastic buttons, Protective lid |
Podrška i resursi
For additional support, detailed manuals, or frequently asked questions, please visit the official Sharp Calculators webstranica:
www.sharp-calculators.com/manuals
Proizvođač: Sharp Corporation





