1. Увод
This manual provides detailed instructions for the proper use and maintenance of your Sharp EL-520TG scientific calculator. The EL-520TG is designed for a wide range of mathematical and scientific calculations, featuring Direct Algebraic Logic (D.A.L.) for intuitive input, 419 functions, and 9 memory registers. Please read this manual thoroughly to ensure optimal performance and longevity of your device.

Image 1.1: Sharp EL-520TG Scientific Calculator, shown with its protective case and a premium warranty card.
2. Подешавање
2.1. Извор напајања
The Sharp EL-520TG calculator is battery-powered. Ensure fresh batteries are installed for reliable operation. Refer to the battery compartment on the back of the unit for battery type and installation instructions.
2.2. Прво укључивање
Притисните тастер ОН/Ц key to power on the calculator. The display should show '0' or a previous calculation result. If the display is blank or dim, replace the batteries.

Слика 2.1: Предња страна view of the Sharp EL-520TG Scientific Calculator, displaying its keypad and screen.
3. Упутство за употребу
3.1. Основне операције
- Укључивање/искључивање: Притисните ОН/Ц да бисте укључили. Притисните 2nd F затим ОФФ да се искључи.
- Унос броја: Use the numeric keys (0-9) and the decimal point key (.) to enter numbers.
- Аритметичке операције: Користите +, -, ×, ÷ за сабирање, одузимање, множење и дељење. Притисните = извршити.
- Обриши унос: Притисните ОН/Ц to clear the current entry.
- Избриши: Користите ДЕЛ key to delete the last entered digit.
3.2. Функције
The EL-520TG features 419 functions, accessible directly or via the 2nd F key for secondary functions printed above the keys.
- Direct Algebraic Logic (D.A.L.): Input calculations as they are written, following standard mathematical order of operations.
- Тригонометријске функције: Користите грех, цос, тан for sine, cosine, and tangent. Use 2nd F затим sin⁻¹, cos⁻¹, tan⁻¹ for inverse trigonometric functions.
- Логаритамске функције: Користите лог for common logarithm (base 10) and ln for natural logarithm (base e).
- Меморијске функције: The calculator has 9 memory registers. Use СТО to store a value and РЦЛ to recall a stored value.
- Статистичке функције: Access statistical modes via МОДЕ. Calculate standard deviation and other statistical values.
- Функције степена и корена: Користите x² for square, √ for square root, and yˣ for general powers.
3.3. Режими приказа
Adjust the display format using the СЕТ УП мени.
- ПОПРАВКА: Specifies the number of decimal places.
- СЦИ: Displays results in scientific notation.
- ЕНГ: Displays results in engineering notation.
- ДЕГ/РАД/ГРАД: Selects the angle unit (degrees, radians, or gradians).
4. Одржавање
4.1. Чишћење
Wipe the calculator's exterior with a soft, dry cloth. Do not use abrasive cleaners or solvents, as they may damage the casinг или приказ.
4.2. Замена батерије
When the display becomes dim or calculations are erratic, it is time to replace the batteries. Refer to the battery compartment cover for the correct battery type and polarity. Ensure the calculator is turned off before replacing batteries.
4.3. Складиштење
Store the calculator in a cool, dry place, away from direct sunlight and extreme temperatures. Use the provided protective case to prevent scratches and damage to the keys and display.

Image 4.1: The Sharp EL-520TG calculator securely stored within its protective case.

Image 4.2: The black protective case, designed to safeguard the Sharp EL-520TG calculator.
КСНУМКС. Решавање проблема
- Празан или затамњен екран: Check battery installation. Replace batteries if necessary.
- Нетачни резултати: Verify the input values and the selected mode (e.g., DEG/RAD). Ensure all previous calculations are cleared.
- Калкулатор не реагује: Покушајте да притиснете РЕСЕТ button (usually a small button on the back, requiring a thin object like a paperclip to press). This will clear all memory and settings.
- Поруке о грешци: Consult the full product manual for specific error code meanings. Common errors include 'ERROR' for mathematical impossibilities (e.g., division by zero) or 'OVERFLOW' for results exceeding the calculator's capacity.
6. Спецификације
| Бранд | Схарп |
| Модел | EL-520TG |
| Тип калкулатора | Наука / Инжењерство |
| Функције | 419 |
| Меморијски регистри | 9 |
| Инпут Логиц | Direct Algebraic Logic (D.A.L.) |
| Извор напајања | Баттери Поверед |
| УПЦ | 634397960069 |
7. Гаранција и подршка
This product includes a premium warranty extension. Please refer to the warranty card for specific terms, conditions, and duration of coverage. Keep your proof of purchase for any warranty claims.

Image 7.1: The Premium Warranty card provided with the product.
For technical support or further assistance, please contact the retailer or refer to the official Sharp support channels. Detailed contact information is typically available on the product packaging or the manufacturer's webсајту.





