1. Introducción y másview
The Sharp EL520XTBBK is an advanced 2-line scientific calculator designed for a wide range of mathematical and scientific applications. It features a Direct Algebraic Logic (D.A.L.) display, allowing calculations to be entered and displayed in a natural, textbook-like format. This calculator is ideal for students and professionals in fields such as general math, science, pre-algebra, algebra I & II, geometry, trigonometry, statistics, biology, chemistry, and physics.
The calculator operates on a twin power system, utilizing both solar energy and battery backup to ensure reliable performance. It comes with a durable, gloss black finish with white accents and includes a protective hard case for portability and protection.
Figura 1.1: Frente view of the Sharp EL520XTBBK Scientific Calculator.
2. Configuración y encendido
Fuente de alimentación 2.1
The EL520XTBBK calculator is equipped with a dual power system: solar power and battery backup. The solar panel, located at the top of the calculator, provides power in well-lit environments. In low-light conditions or when solar power is insufficient, the calculator automatically switches to battery power. No user intervention is required for power source selection.
2.2 Encendido/Apagado
- Para encender la calculadora, presione el botón ENCENDIDO/C botón.
- Para apagar la calculadora, presione el botón 2do F botón seguido del APAGADO button (which is typically the same as ENCENDIDO/C, indicated by an orange 'OFF' label above it). The calculator also features an auto-power-off function to conserve battery life after a period of inactivity.
3. Instrucciones de funcionamiento
3.1 Lógica algebraica directa (DAL)
The D.A.L. system allows you to input equations exactly as they are written, simplifying complex calculations. For example, to calculate sin(30), you would press pecado, entonces 30, y luego =. The calculator displays the expression as you enter it, making it easy to verify your input.
3.2 Basic Arithmetic and Scientific Functions
Perform standard operations using the number keys (0-9), decimal point (.), and operators (+, -, ×, ÷). El = La tecla ejecuta el cálculo.
Access scientific functions such as trigonometric (pecado, porque, broncearse, hip), logarithmic (registro, ln), and exponential (Exp, 10x, ex) functions directly or by using the 2do F key for secondary functions. The x2, x3, √, y yx keys are available for powers and roots.
3.3 Cálculos estadísticos
The calculator supports 1-variable and 2-variable statistical calculations. To enter statistical mode, press MODO and select the appropriate statistical option. Data entry and calculation of mean, standard deviation, and other statistical values are performed using dedicated statistical keys and menus.
3.4 Solucionadores de ecuaciones
The EL520XTBBK includes a 3-variable linear equation solver. Refer to the detailed manual for specific steps on how to input coefficients and solve systems of linear equations.
3.5 Funciones de memoria
The calculator features 8 temporary memory buttons and 4 formula memory buttons. Use STO to store values into memory and LCR to recall them. The M+ y M- keys allow for direct addition or subtraction to the independent memory.
3.6 Constantes físicas y conversiones métricas
Access a library of built-in physical constants and perform various metric conversions using the dedicated functions. Consult the full user manual for a complete list of available constants and conversion types.
3.7 Demonstration of Features (Similar Model)
Video 3.7.1: This video demonstrates features such as WriteView display, definable memory keys, and quick fraction/decimal conversion on a similar Sharp scientific calculator model (EL-W535TGBBL). While the model differs, the core functionalities are analogous to the EL520XTBBK.
4. Mantenimiento
4.1 Limpieza
Para limpiar la calculadora, utilice un paño suave y seco. No utilice limpiadores abrasivos, disolventes ni alcohol, ya que pueden dañar la calculadora.asing or display. Avoid getting moisture into any openings.
4.2 Almacenamiento
Cuando no la use, guarde la calculadora en su estuche rígido protector para evitar rayones y daños en la pantalla y las teclas. Evite exponerla a temperaturas extremas, humedad o luz solar directa durante períodos prolongados.
5. Solución de problemas
5.1 Problemas de visualización
- Pantalla en blanco: Ensure the calculator is in a well-lit area for solar power or that the battery is not depleted. Press ENCENDIDO/C Para encenderlo.
- Pantalla débil: Adjust the contrast setting if available (refer to the full manual for specific instructions). Ensure adequate lighting for solar charging.
5.2 Incorrect Calculations
- Comprobar entrada: Verify that the numbers and operations were entered correctly using the D.A.L. display.
- Configuración de modo: Ensure the calculator is in the correct mode (e.g., DEG, RAD, STAT) for your calculation. Press MODO to cycle through or select modes.
- Reset: If calculations remain incorrect, a full reset may be necessary. Locate the REINICIAR button (often a small recessed button requiring a thin object like a paperclip) and press it. Note that this will clear all memory and settings.
6. Especificaciones
| Característica | Especificación |
|---|---|
| Modelo | EL520XTBBK |
| Tipo de pantalla | LCD de 2 línea |
| Número de dígitos | 10 dígitos |
| Fuente de poder | Energía solar con respaldo de batería |
| Tipo de calculadora | Científico / Ingeniería |
| Tipo de material | Goma |
| Color | Negro |
| Dimensiones (An x Al x Pr) | 3-5⁄16" x 5-5⁄16" x 5⁄8" (approx. 8.4 x 13.5 x 1.6 cm) |
| Peso | 160 gramos |
7. Garantía y soporte
For warranty information, technical support, or service inquiries, please refer to the documentation included with your product at the time of purchase or visit the official Sharp Electronics webSitio. Conserve su comprobante de compra para reclamaciones de garantía.