1. Introducción
This manual provides detailed instructions for the operation and maintenance of your CATIGA CD-2786-12 Desktop Calculator. Designed for clarity and ease of use, this 12-digit calculator features a large LCD display, responsive buttons, and dual power sources (solar and battery) for reliable performance in various environments, including business, office, home, and school settings.
2. Características del producto
- Gran pantalla LCD de 12 dígitos: Provides clear and easy-to-read numbers, enhancing readability from a distance.
- Sensitive and Large Buttons: Ensures faster and smoother calculation processes with responsive key registration and reduced error potential.
- Diseño de doble potencia: Operates using both solar power (in well-lit environments) and a pre-installed LR44 battery, ensuring continuous functionality.
- Ergonomic Angle Design: Features a 30-degree angled screen for improved viewing comfort and user experience.
- Almohadillas de goma antideslizantes: Equipped with four anti-slip pads on the base to prevent movement during use.
- Apagado automático: The calculator will automatically turn off after approximately 6 minutes of inactivity to conserve power.
Figura 1: Frente view of the CATIGA CD-2786-12 Desktop Calculator, showing the large LCD display and keypad.
3. Configuración
- Desembalaje: Retire con cuidado la calculadora de su embalaje.
- Encendido inicial: Presione el ENCENDIDO/CA button to turn on the calculator. The display should show "0".
- Fuente de energía: The calculator is equipped with both solar and battery power. Ensure the solar panel is exposed to light for optimal performance. The pre-installed LR44 battery provides backup power in low-light conditions.
- Colocación: Place the calculator on a flat, stable surface. The ergonomic angle design and anti-slip pads ensure stability during use.
Figure 2: Illustration of the calculator's dual power sources: solar panel and pre-installed battery.
4. Instrucciones de funcionamiento
4.1 Operaciones básicas
| Llave | Función |
|---|---|
| ENCENDIDO/CA | Power On / All Clear (clears all entries and memory) |
| 0-9 | Teclas numéricas |
| . | Decimal Point Key |
| + | Suma |
| - | Sustracción |
| x | Multiplicación |
| ÷ | División |
| = | Equals (displays result) |
| C/CE | Clear Entry / Clear Error (clears the last entry or error) |
| ► | Right Shift Key (deletes the rightmost digit) |
4.2 Funciones de memoria
| Llave | Función |
|---|---|
| M+ | Memory Plus (adds the displayed value to memory) |
| M- | Memory Minus (subtracts the displayed value from memory) |
| CMR | Memory Recall / Clear (first press recalls memory, second press clears memory) |
| GT | Grand Total (displays the sum of all results calculated since the last GT clear) |
4.3 Porcentajetage and Square Root
- % (porcentajetagmi): Se utiliza para porcentajetagcálculos electrónicos. Por ejemploample, to calculate 10% of 200, enter "200 x 10 %".
- √ (Raíz cuadrada): Calculates the square root of the displayed number. For example, to find the square root of 25, enter "25 √".
5. Mantenimiento
5.1 Reemplazo de batería
The calculator uses one LR44 (1.5V) battery. If the display becomes dim or blurry, it indicates low battery power. You can continue to use solar energy or replace the battery.
- Loosen the screw on the back cover of the calculator.
- Retire con cuidado la tapa trasera.
- Use a small screwdriver or similar tool to gently push out the old battery. Note the polarity (+/-) of the old battery.
- Insert the new LR44 battery with the correct polarity.
- Replace the back cover and tighten the screw. Do not overtighten.
After replacing the battery, allow approximately 5-10 minutes for the calculator to fully reset and function optimally.
5.2 Limpieza
Wipe the calculator with a soft, dry cloth. Do not use liquid cleaners or abrasive materials, as these may damage the display or casing.
6. Solución de problemas
- La pantalla está en blanco:
- Asegúrese de que la calculadora esté en un área bien iluminada para que reciba energía solar.
- Presione el ENCENDIDO/CA botón.
- Verifique si es necesario reemplazar la batería (consulte la Sección 5.1).
- Cálculos incorrectos:
- Prensa ENCENDIDO/CA to clear all previous entries and memory, then re-enter your calculation.
- Ensure correct key presses; the large buttons are designed to minimize errors.
- Los botones no responden:
- Limpie alrededor de los botones con un paño suave y seco para eliminar cualquier residuo.
- If the issue persists, the internal mechanism may require professional inspection.
7. Especificaciones
| Característica | Detalle |
|---|---|
| Número de modelo | CD-2786-12 |
| Mostrar dígitos | 12 dígitos |
| Tamaño de pantalla | 4.5 pulgadas |
| Fuente de poder | Dual Power (Solar & 1x LR44 Battery) |
| Dimensiones del producto | 6 x 4.72 x 0.1 pulgadas |
| Peso del artículo | 5.6 onzas |
| Tipo de calculadora | Business, Financial, Standard Function |
| Apagado automático | Después de aprox. 6 minutos de inactividad |
Figure 3: Dimensions and ergonomic angle design of the calculator for comfortable use.
8. Garantía y soporte
For warranty information or technical support, please refer to the contact details provided with your product packaging or visit the official CATIGA webSitio. Conserve su recibo de compra como comprobante de compra.