Hướng dẫn sử dụng máy tính khoa học Dexin KK-82MS-B

Giới thiệu

This manual provides comprehensive instructions for the operation and maintenance of your Dexin Scientific Calculator, model KK-82MS-B. Designed for students and professionals, this calculator offers a wide range of functions for various mathematical and scientific calculations. Please read this manual thoroughly to ensure proper use and to maximize the lifespan of your device.

Các tính năng chính

• 240 chức năng: This professional scientific calculator supports a wide array of calculations, including statistical data editor calculations, basic arithmetic, trigonometric functions, roots (square and n-th), percentages, complex numbers, permutations, linear regression, standard deviations, and variable solving.
• Màn hình LCD lớn: The clear, 12-digit LCD screen allows for simultaneous viewing of calculation formulas and results, providing high detail for equations and corrections.
• Educational Suitability: Ideal for middle school students, this scientific calculator simplifies 1-variable and 2-variable statistical calculations and supports three angle modes (degrees, radians, and gradients), making it suitable for elementary and advanced courses in algebra, geometry, trigonometry, differential, and integral calculus.
• Sensitive Keys & Durable Sliding Cover: Features responsive buttons for quick and accurate input. The ergonomically designed sliding cover protects the calculator from damage and offers a comfortable grip.
• Dùng pin: Operates on an LR44 battery, ensuring reliable performance even in dim lighting and providing extended service life.

Cài đặt

Lắp đặt pin

The Dexin Scientific Calculator KK-82MS-B is powered by an LR44 battery. To install or replace the battery:

1. Hãy tìm nắp đậy ngăn chứa pin ở phía sau máy tính.
2. Carefully slide or unscrew the cover to open the compartment.
3. Insert the LR44 battery, ensuring the correct polarity (+/-) as indicated inside the compartment.
4. Lắp lại nắp ngăn chứa pin một cách an toàn.

Note: Ensure the calculator is turned off before replacing the battery. Dispose of used batteries responsibly.

Hướng dẫn sử dụng

Các hoạt động cơ bản

Để bật máy tính ON, nhấn ON button. To turn it TẮT, nhấn SỰ THAY ĐỔI sau đó AC (TẮT).

Nhập số bằng bàn phím số. Sử dụng +, -, ×, ÷ buttons for standard arithmetic operations. Press = để hiển thị kết quả.

Chức năng khoa học

The calculator provides 240 functions. Many functions are accessed by pressing the SỰ THAY ĐỔI key followed by the desired function key (indicated in yellow above the keys) or the ALPHA key (indicated in red above the keys).

• Các hàm lượng giác: Sử dụng tội lỗi, cos, rám nắng for sine, cosine, and tangent. Press SỰ THAY ĐỔI sau đó tội lỗi⁻¹, cos⁻¹, tan⁻¹ for inverse trigonometric functions.
• Roots and Powers: Sử dụng √ for square root, x² for squaring. For n-th roots or powers, use SỰ THAY ĐỔI with the appropriate function.
• Phân số: Sử dụng ab/c button for fraction input and conversion.
• Logarithms: Sử dụng nhật ký for common logarithm (base 10) and ln for natural logarithm (base e).
• Chế độ góc: To change between Degrees (D), Radians (R), and Gradients (G), press CÁCH THỨC multiple times until the desired mode appears on the display.
• Tính toán thống kê: Access statistical modes via the CÁCH THỨC button. Refer to the on-screen indicators for 1-variable and 2-variable statistics.

For detailed instructions on specific functions, please refer to the function labels on the calculator keys and the corresponding secondary functions indicated above them.

BẢO TRÌ

Vệ sinh

To clean your calculator, gently wipe the surface with a soft, dry cloth. For stubborn dirt, a slightly damp cloth can be used, but ensure no moisture enters the device. Avoid using harsh chemicals, abrasive cleaners, or solvents, as these can damage the display and casing.

Lưu trữ và bảo vệ

Always use the durable sliding cover when the calculator is not in use to protect the keys and display from dust, scratches, and impacts. Store the calculator in a cool, dry place, away from direct sunlight, extreme temperatures, and high humidity. Avoid dropping the calculator or subjecting it to strong vibrations.

Xử lý sự cố

If you encounter issues with your Dexin Scientific Calculator, please refer to the following common problems and solutions:

• Máy tính không bật được: Check if the LR44 battery is correctly installed and has sufficient charge. Replace the battery if necessary.
• Màn hình mờ hoặc tối: This may indicate a low battery. Replace the LR44 battery.
• Kết quả không chính xác: Ensure you are in the correct angle mode (Degrees, Radians, or Gradients) for trigonometric calculations. Verify your input and the sequence of operations. Clear the calculator's memory by pressing SỰ THAY ĐỔI sau đó CLR (Clear) and select the appropriate clear option.
• Các phím không phản hồi: Ensure no debris is lodged under the keys. Gently press the keys to ensure proper contact. If the issue persists, the calculator may require professional servicing.

Nếu sự cố vẫn tiếp diễn sau khi đã thử các giải pháp trên, vui lòng liên hệ với bộ phận hỗ trợ khách hàng để được trợ giúp thêm.

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Bảo hành và Hỗ trợ

Specific warranty information for the Dexin Scientific Calculator KK-82MS-B is not provided in the product details. For warranty claims or technical support, please contact your retailer or the manufacturer, Dexin, directly. Keep your purchase receipt as proof of purchase.