1. Introdución
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. Configuración
2.1. Fonte de enerxía
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. Acendido inicial
Preme o ON/C 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.
Imaxe 2.1: Fronte view of the Sharp EL-520TG Scientific Calculator, displaying its keypad and screen.
3. Instrucións de funcionamento
3.1. Operacións básicas
- Encendido/apagado: Preme ON/C to turn on. Press 2º F entón DESACTIVADO para apagar.
- Number Entry: Use as teclas numéricas (0-9) e a tecla do punto decimal (.) to enter numbers.
- Operacións aritméticas: Use +, -, ×, ÷ for addition, subtraction, multiplication, and division. Press = executar.
- Clear Entry: Preme ON/C to clear the current entry.
- Eliminar: Usa o DEL key to delete the last entered digit.
3.2. Funcións
The EL-520TG features 419 functions, accessible directly or via the 2º 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.
- Funcións trigonométricas: Use pecado, cos, bronceado for sine, cosine, and tangent. Use 2º F entón sin⁻¹, cos⁻¹, tan⁻¹ for inverse trigonometric functions.
- Funcións logarítmicas: Use rexistro for common logarithm (base 10) and ln for natural logarithm (base e).
- Funcións de memoria: The calculator has 9 memory registers. Use STO to store a value and RCL to recall a stored value.
- Funcións estatísticas: Acceder aos modos estatísticos a través de MODO. Calculate standard deviation and other statistical values.
- Funcións potencia e raíz: Use x² for square, √ para a raíz cadrada e yˣ para poderes xerais.
3.3. Modos de visualización
Adjust the display format using the CONFIGURAR menú.
- CORRECCIÓN: Specifies the number of decimal places.
- SCI: Displays results in scientific notation.
- ENG: Displays results in engineering notation.
- DEG/RAD/GRAD: Selects the angle unit (degrees, radians, or gradians).
4. Mantemento
4.1. Limpeza
Wipe the calculator's exterior with a soft, dry cloth. Do not use abrasive cleaners or solvents, as they may damage the casing ou pantalla.
4.2. Substitución da batería
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. Almacenamento
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.
5 Solución de problemas
- Pantalla en branco ou escura: Comprobe a instalación das baterías. Substitúa as baterías se é necesario.
- Resultados incorrectos: Verify the input values and the selected mode (e.g., DEG/RAD). Ensure all previous calculations are cleared.
- A calculadora non responde: Proba a premer RESET button (usually a small button on the back, requiring a thin object like a paperclip to press). This will clear all memory and settings.
- Mensaxes de erro: 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. Especificacións
| Marca | Agudo |
| Modelo | EL-520TG |
| Tipo de calculadora | Científico/Enxeñaría |
| Funcións | 419 |
| Rexistros de memoria | 9 |
| Lóxica de entrada | Direct Algebraic Logic (D.A.L.) |
| Fonte de enerxía | Alimentado por batería |
| UPC | 634397960069 |
7. Garantía e soporte
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 websitio.
