Manual Pengguna Kalkulator Sharp EL-145T BL

1. Pengenalan

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. Maklumat Keselamatan

• Do not expose the calculator to direct sunlight for extended periods or to extreme temperatures.
• Elakkan daripada menjatuhkan kalkulator atau menyebabkannya terkena hentaman yang kuat.
• Keep the calculator away from water and other liquids.
• Do not attempt to disassemble or modify the calculator. Refer all servicing to qualified personnel.
• Buang bateri mengikut peraturan tempatan.

3. Produk Lebihview

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.

Rajah 1: Depan 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.

Ciri-ciri Utama:

• 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).
• Peratustage calculation function (%).
• Square root calculation (√).
• 4-key memory functions (M+, M-, RM, CM).
• Clear Entry (CE) and All Clear (CA/C) keys.

Komponen:

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.

Rajah 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. Persediaan

Sumber Kuasa:

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

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

Pemasangan/Penggantian Bateri:

1. Ensure the calculator is turned off or in a well-lit area to utilize solar power.
2. Cari penutup petak bateri di bahagian belakang kalkulator.
3. Keluarkan penutup dengan berhati-hati.
4. Insert a new LR-54 or LR44 battery, ensuring the correct polarity (+/-) as indicated inside the compartment.
5. Gantikan penutup petak bateri dengan selamat.

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

5. Arahan Operasi

Operasi Asas Aritmetik:

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

• Tambahan: [Number 1] [+] [Number 2] [=]
• Penolakan: [Number 1] [-] [Number 2] [=]
• Pendaraban: [Number 1] [×] [Number 2] [=]
• Bahagian: [Number 1] [÷] [Number 2] [=]

Clear Functions:

• [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.

Peratustage Pengiraan:

Untuk mengira peratustages, use the [%] kunci.

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

Pengiraan Cukai:

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

1. Setting the Tax Rate:
   Enter the tax rate (e.g., [8] for 8%). Press [RATE SET]. The tax rate is now stored.
2. Menambah Cukai:
   Enter the amount (e.g., [100]). Tekan [+TAX]. The display will show the amount with tax added.
3. Menolak Cukai:
   Enter the amount (e.g., [108]). Tekan [-TAX]. The display will show the amount with tax removed.
4. Recalling Tax Rate:
   Tekan [RATE RECALL] kepada view the currently set tax rate.

Fungsi Memori:

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

• [M+] (Memory Plus): Menambah nilai yang dipaparkan pada memori.
• [M-] (Memory Minus): Menolak nilai yang dipaparkan daripada memori.
• [RM] (Recall Memory): Memaparkan nilai yang sedang disimpan dalam memori.
• [CM] (Clear Memory): Clears the memory content. (Often combined with RM, pressing RM twice clears memory).

Pengiraan Punca Kuasa Dua:

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

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

6. Penyelenggaraan

• Pembersihan: Gunakan kain lembut dan kering untuk membersihkan bahagian luar kalkulator. Untuk kotoran degil, gosok sedikitampen the cloth with water and a mild detergent, then wipe dry immediately. Do not use abrasive cleaners or solvents.
• Storan: When not in use for extended periods, store the calculator in a cool, dry place away from direct sunlight and extreme temperatures.
• Hayat Bateri: 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. Penyelesaian masalah

8. Spesifikasi

9. Waranti dan Sokongan

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 webtapak atau hubungi bahagian perkhidmatan pelanggan mereka.