OSALO Desktop Calculator OS-8812T User Manual

1. Pengenalan

Thank you for choosing the OSALO Desktop Calculator OS-8812T. This 12-digit desktop calculator is designed for both home and office use, offering a large display, comfortable keys, and essential functions including a tax calculation feature. This manual provides detailed instructions for setup, operation, maintenance, and troubleshooting to ensure optimal performance and longevity of your device.

2. Ciri-ciri Utama

• Tax Rate Calculator Function: Simplifies tax calculations with integrated tax rate adjustments (TAX+, TAX-).
• Paparan LCD 12 Digit Besar: High-resolution display for clear and easy readability, tilted at 15 degrees for improved viewkeselesaan.
• Ergonomic Concave Round Buttons: Designed for comfortable and accurate input, adapting to your fingertips.
• Sensitive Keys: Ensures quick and precise typing.
• Sumber Kuasa Dwi: Operates on solar energy and a single LR44 battery (included), providing reliable power and energy efficiency.
• Reka bentuk Anti-Slip: Features anti-slip mats for stability during use.

3. Produk Lebihview dan Dimensi

Familiarize yourself with the calculator's layout and physical specifications.

Imej: Depan dan sisi view of the OSALO Desktop Calculator OS-8812T, illustrating its dimensions (189mm length, 140mm width, 31mm height, 15-degree display tilt).

Imej: Terperinci view of the OSALO Desktop Calculator OS-8812T with key functions labeled, including Operation Symbol Display, Grand Total (GT), Memory Plus/Minus (M+, M-), Back Space, All Clear (AC), Tax Rate Settings (TAX+, TAX-), Memory Load/Clear (MRC), and Root (√).

4. Persediaan

4.1 Sumber Kuasa

The OSALO OS-8812T calculator operates using a dual power system: solar energy and a single LR44 battery. The calculator will automatically switch to battery power in low light conditions.

Pemasangan/Penggantian Bateri:

1. Pastikan kalkulator dimatikan.
2. Cari petak bateri di bahagian belakang kalkulator.
3. Gunakan pemutar skru kecil untuk membuka penutup bateri.
4. Insert one LR44 battery, ensuring the correct polarity (+/-).
5. Pasang semula penutup bateri dan selamatkannya.

Image: The underside of the OSALO Desktop Calculator, highlighting the battery compartment and the anti-slip mats at each corner.

4.2 Penggunaan Awal

Tekan ke AC (All Clear) button to clear any previous calculations and ensure the display shows '0'. The calculator is now ready for use.

5. Arahan Operasi

5.1 Operasi Aritmetik Asas

Perform addition, subtraction, multiplication, and division using the respective keys (+, -, ×, ÷) and the equals (=) key.

5.2 Tax Calculation Function

The calculator features dedicated keys for tax calculations (TAX+, TAX-). This function simplifies adding or subtracting a predefined tax rate.

Setting the Tax Rate:

1. Tekan AC untuk mengosongkan paparan.
2. Tekan ke KADAR butang.
3. Enter the desired tax rate (e.g., 8 for 8%).
4. Tekan KADAR again to save the tax rate. The display will show the set rate.

Using Tax Functions:

• CUKAI+: To add tax to an amount, enter the amount, then press CUKAI+. The display will show the amount including tax.
• CUKAI-: To subtract tax from an amount, enter the amount, then press CUKAI-. The display will show the amount excluding tax.
• INGAT SEMULA: To check the currently set tax rate, press INGAT SEMULA.

Image: A table demonstrating the purpose, operation, and result for various tax functions, including setting an 8% tax rate, calculating total amount after tax, and total amount before tax.

5.3 Fungsi Memori

• M+: Menambah nilai yang dipaparkan pada memori.
• M-: Menolak nilai yang dipaparkan daripada memori.
• BSMM: Recalls the memory content. Pressing it twice clears the memory.
• GT (Jumlah Besar): Accumulates the results of all calculations. Pressing it twice clears the grand total.

5.4 Fungsi Lain

• %: Peratustagkunci e.
• √: Square root key.
• Back Space (►): Deletes the last entered digit.
• C/CE: Clear Entry. Clears the last entry without clearing the entire calculation.

5.5 Reka Bentuk Ergonomik

Imej: Dari dekat view of the calculator's concave round buttons, designed for comfortable and precise finger placement during operation.

Image: A diagram illustrating the 30-degree ergonomic tilt of the calculator, showing how it provides an optimal viewing angle for users at a desk.

5.6 Video Pengajaran

6. Penyelenggaraan

6.1 Pembersihan

To clean the calculator, gently wipe the surface with a soft, dry cloth. For stubborn dirt, slightly dampen the cloth with water and mild soap, then wipe dry immediately. Avoid using abrasive cleaners, solvents, or spraying liquids directly onto the calculator.

6.2 Penjagaan Bateri

If the calculator will not be used for an extended period, it is recommended to remove the LR44 battery to prevent leakage and potential damage to the device.

6.3 Penyimpanan

Store the calculator in a cool, dry place away from direct sunlight, extreme temperatures, and high humidity. Keep it away from strong magnetic fields.

7. Penyelesaian masalah

• Paparan kosong atau malap:
  • Ensure sufficient light for solar power.
  • Check if the LR44 battery is correctly installed and not depleted. Replace if necessary.
  • Tekan AC untuk menetapkan semula.
• Pengiraan yang salah:
  • Tekan AC to clear all previous operations and memory.
  • Verify the input sequence and numbers.
  • Check if any memory functions (M+, M-, GT) are active and affecting the result.
• Kekunci tidak responsif:
  • Ensure the calculator is powered on.
  • Bersihkan sekeliling kunci untuk mengeluarkan sebarang serpihan.
  • If the issue persists, try replacing the battery.

8. Spesifikasi

9. Maklumat Keselamatan

• Do not attempt to disassemble or modify the calculator.
• Keep the calculator away from water and other liquids to prevent damage.
• Elakkan daripada menjatuhkan kalkulator atau menyebabkannya terkena hentaman yang kuat.
• Jauhkan bateri daripada kanak-kanak. Jika tertelan, dapatkan rawatan perubatan segera.

10. Waranti dan Sokongan

For warranty information and customer support, please refer to the documentation provided with your purchase or contact OSALO customer service directly. Keep your proof of purchase for any warranty claims.