Sharp EL-145T BL Calculator User Manual

1. Introducció

This manual provides detailed instructions for the proper use and maintenance of your Sharp EL-145T BL 14-digit desktop calculator. Designed for office tasks, this calculator features tax calculation, percentage calculation, root calculation, and a 4-key memory system. It operates using both solar power and a backup battery, ensuring reliable performance.

Please read this manual thoroughly before using the calculator to ensure optimal performance and longevity.

2. Informació de seguretat

• Do not expose the calculator to direct sunlight for extended periods or to extreme temperatures.
• Eviteu deixar caure la calculadora o sotmetre-la a impactes forts.
• Keep the calculator away from water and other liquids.
• Do not attempt to disassemble or modify the calculator. Refer all servicing to qualified personnel.
• Eliminar les bateries segons la normativa local.

3. Producte acabatview

The Sharp EL-145T BL is a compact and efficient 14-digit desktop calculator. Its angled LCD display enhances readability, making it suitable for various calculations.

Figura 1: Davant view of the Sharp EL-145T BL calculator, showing the 14-digit display, solar panel, and key layout. The calculator features a black body with blue accents.

Característiques principals:

• 14-digit angled LCD display for clear viewing.
• Dual power source: Solar and battery (1 x LR-54/LR44).
• Dedicated tax calculation keys (+TAX, -TAX, RATE SET, RATE RECALL).
• Percenttage calculation function (%).
• Square root calculation (√).
• 4-key memory functions (M+, M-, RM, CM).
• Clear Entry (CE) and All Clear (CA/C) keys.

Components:

The calculator consists of a main unit with a display panel, a solar panel, and a keypad. The keypad includes numeric keys (0-9, .), arithmetic operation keys (+, -, ×, ÷, =), and special function keys.

Figura 2: The Sharp EL-145T BL calculator positioned on a wooden desk, demonstrating its compact size and suitability for office environments. A highlighter and sticky note are visible nearby.

4. Configuració

Font d'alimentació:

The EL-145T BL calculator is designed for dual power operation:

• Energia solar: The calculator primarily operates on solar power when sufficient light is available. Ensure the solar panel (located above the display) is exposed to light.
• Potència de la bateria: A backup battery (1 x LR-54 or LR44) is included to provide power in low-light conditions.

Instal·lació/substitució de la bateria:

1. Ensure the calculator is turned off or in a well-lit area to utilize solar power.
2. Localitzeu la tapa del compartiment de la bateria a la part posterior de la calculadora.
3. Traieu la coberta amb cura.
4. Insert a new LR-54 or LR44 battery, ensuring the correct polarity (+/-) as indicated inside the compartment.
5. Col·loqueu la coberta del compartiment de la bateria amb seguretat.

Note: The calculator may power on automatically once sufficient light or battery power is detected.

5. Instruccions de funcionament

Operacions aritmètiques bàsiques:

Enter numbers and use the standard arithmetic keys (+, -, ×, ÷) followed by the equals key (=) to perform calculations.

• Addició: [Number 1] [+] [Number 2] [=]
• Resta: [Number 1] [-] [Number 2] [=]
• Multiplicació: [Number 1] [×] [Number 2] [=]
• Divisió: [Number 1] [÷] [Number 2] [=]

Funcions clares:

• [CA/C] (All Clear): Clears all entries and memory, resetting the calculator.
• [CE] (Clear Entry): Clears the last entered number or the current calculation result without affecting previous entries or memory.

Percenttage Càlcul:

Per calcular el percentatgetages, use the [%] clau.

• ExampLI: Calculate 15% of 200.
  Entra [200] [×] [15] [%]. The result will be 30.
• ExampLI: Add 15% to 200.
  Entra [200] [+] [15] [%]. The result will be 230.

Càlcul d'impostos:

The calculator features dedicated keys for tax calculations. First, set the tax rate.

1. Establiment del tipus impositiu:
   Enter the tax rate (e.g., [8] for 8%). Press [RATE SET]. The tax rate is now stored.
2. Afegir impostos:
   Enter the amount (e.g., [100]). Premeu [+TAX]. The display will show the amount with tax added.
3. Resta d'impostos:
   Enter the amount (e.g., [108]). Premeu [-TAX]. The display will show the amount with tax removed.
4. Recalling Tax Rate:
   Premeu [RATE RECALL] a view the currently set tax rate.

Funcions de memòria:

The 4-key memory allows you to store and recall values.

• [M+] (Memory Plus): Afegeix el valor mostrat a la memòria.
• [M-] (Memory Minus): Resta el valor mostrat de la memòria.
• [RM] (Recall Memory): Mostra el valor que hi ha actualment a la memòria.
• [CM] (Clear Memory): Clears the memory content. (Often combined with RM, pressing RM twice clears memory).

Càlcul d'arrel quadrada:

To calculate the square root of a number, enter the number and then press the [√] clau.

• ExampLI: Calculate the square root of 81.
  Entra [81] [√]. The result will be 9.

6. Manteniment

• Neteja: Use a soft, dry cloth to clean the calculator's exterior. For stubborn dirt, slightly dampen the cloth with water and a mild detergent, then wipe dry immediately. Do not use abrasive cleaners or solvents.
• Emmagatzematge: When not in use for extended periods, store the calculator in a cool, dry place away from direct sunlight and extreme temperatures.
• Durada de la bateria: The battery life is approximately 2 years when used for 1 hour per day under solar power. Replace the battery when the display becomes dim or erratic in low light.

7. Solució De Problemes

8. Especificacions

9. Garantia i Suport

Sharp products are manufactured to high-quality standards. For specific warranty information, please refer to the warranty card included with your purchase or contact your local Sharp customer support. Keep your purchase receipt as proof of purchase.

For further assistance or inquiries, please visit the official Sharp weblloc o poseu-vos en contacte amb el seu departament d'atenció al client.