OSALO Scientific Calculator OS 991ES PLUS II User Manual

pengenalan

This manual provides detailed instructions for the proper use and maintenance of your OSALO Scientific Calculator OS 991ES PLUS II. This calculator is designed for efficient and accurate calculations, featuring 417 essential functions and a textbook-like written display. It is suitable for students and professionals across various academic disciplines.

Imej: Depan view of the OSALO Scientific Calculator OS 991ES PLUS II, displaying a complex integral calculation.

Parts of the Calculator

Familiarize yourself with the various components and keys of your calculator for optimal use.

Image: Diagram illustrating the key components of the OSALO Scientific Calculator, including the solar panel, extra large display, control keys, SHIFT key, Mode key, Power on/off, function keys, Delete key, and Last answer key.

• Panel Suria: Provides power in well-lit environments.
• Paparan Lebih Besar: Shows calculations and results in a clear, textbook-like format.
• Kekunci Kawalan: Navigation and selection buttons.
• Kunci SHIFT: Accesses secondary functions printed above keys.
• ALPHA Key: Accesses alpha characters and variables.
• MODE/SETUP Key: Changes calculator modes and settings.
• ON Key: Menghidupkan kalkulator.
• Kekunci Fungsi: Dedicated keys for mathematical operations (e.g., sin, cos, tan, log, ln, square root, power).
• DEL Key: Deletes the last entered character.
• Kunci AC: Clears all calculations and resets the display.
• ANS Key: Recalls the last answer.

Persediaan

Battery Installation and Power Source

The OSALO Scientific Calculator OS 991ES PLUS II operates on both solar power and a single LR44 battery (included). The solar panel provides power in sufficient light, while the battery ensures operation in low-light conditions or when solar power is insufficient.

1. Pastikan kalkulator dimatikan.
2. Cari petak bateri di bahagian belakang kalkulator.
3. Open the battery cover using a small screwdriver if necessary.
4. Insert the LR44 battery, ensuring the correct polarity (+/-).
5. Tutup penutup bateri dengan selamat.

The calculator will automatically switch between solar and battery power as needed. For optimal performance, use the calculator in a well-lit environment.

Arahan Operasi

This section details the various functions and modes of your OSALO Scientific Calculator.

Hidupkan/Mati Kuasa

• Untuk menghidupkan: Tekan butang ON kunci.
• Untuk mematikan: Tekan SHIFT kemudian AC (MATI).

Basic Calculations (COMP Mode)

The default mode for general arithmetic operations. To enter COMP mode, press MODE/SETUP and select 1:COMP.

• Penambahan, Penolakan, Pendaraban, Pembahagian: Enter numbers and operators as you would write them. Press = untuk hasilnya.
• Pecahan: Gunakan ab/c key to input fractions. To convert between fractions and decimals, press S<=>D.
• Kuasa dan Akar: guna x², x³, x^, √, ³√ kunci.

Textbook-Like Written Display

The calculator features a natural input and output display, mimicking how expressions appear in textbooks. This enhances readability and simplifies complex equation entry.

Image: The calculator's display showing mathematical expressions in a natural, textbook-like format, including fractions and square roots.

Pelarasan Kontras

Adjust the screen contrast to relieve visual fatigue and ensure clear visibility in various lighting conditions.

• Tekan SHIFT kemudian MODE/SETUP untuk masuk ke menu SETUP.
• Navigate to "Contrast" (usually option 8 or 9).
• Use the left and right arrow keys to adjust the display contrast.
• Tekan AC untuk keluar dari menu persediaan.

Imej: Dua views of the calculator display, demonstrating the contrast adjustment function from dark (to relieve visual fatigue) to light (clear and intuitive).

Advanced Functions and Modes (417 Functions)

The calculator offers 8 primary calculation modes and 417 functions to handle a wide range of mathematical problems.

Image: The calculator alongside a list of its 8 calculation modes: COMP (General calculations), CMPLX (Complex numbers), STAT (Statistics), BASE-N, Equation solution, Matrix Calculations, TABLE, and VECTOR.

• COMP (Pengiraan Umum): Standard arithmetic, fractions, powers, roots, logarithms, trigonometric functions.
• CMPLX (Pengiraan Nombor Kompleks): Perform operations with complex numbers. Press MODE/SETUP and select 2:CMPLX.
• STAT (Statistics): Calculate mean, standard deviation, regression analysis. Press MODE/SETUP and select 3:STAT.
• BASE-N: Convert and calculate in different number bases (binary, octal, decimal, hexadecimal). Press MODE/SETUP and select 4:BASE-N.
• Equation Solving: Solve linear equations, quadratic equations, and cubic equations. Press MODE/SETUP and select 5:EQN.
• Matrix Operations: Perform matrix addition, subtraction, multiplication, determinants, and transpositions. Press MODE/SETUP and select 6:MATRIX.
• JADUAL: Generate a table of values for a given function. Press MODE/SETUP and select 7:TABLE.
• VEKTOR: Perform vector calculations. Press MODE/SETUP and select 8:VECTOR.
• Trigonometri: Sine, Cosine, Tangent, and their inverses. Ensure correct angle unit (Degrees, Radians, Gradians) is set via SHIFT MODE/SETUP (DRG).
• Integration and Differentiation: Use the dedicated integral (∫dx) and differential (d/dx) keys for calculus operations.
• Function Analysis: Advanced functions for analyzing mathematical expressions.

Smart History and Quick Recall

The calculator stores previous calculations, allowing for quick retrieval, reuse, or editing of formulas. Use the ▲ dan ▼ arrow keys to scroll through calculation history.

Penyelenggaraan

• Pembersihan: Lap kalkulator dengan kain lembut dan kering. Jangan gunakan pembersih atau pelarut yang kasar.
• Storan: Simpan kalkulator di tempat yang sejuk dan kering, jauh daripada cahaya matahari langsung dan suhu yang melampau.
• Penggantian Bateri: If the display becomes dim or the calculator functions erratically, replace the LR44 battery.
• Elakkan Titisan: Protect the calculator from impacts and drops, which can damage internal components or the display.

Menyelesaikan masalah

Spesifikasi

• model: OS 991ES PLUS II
• Fungsi: 417
• paparan: 2-line, 10+2 digits, Textbook-Like Written Display
• Sumber Kuasa: Solar and Battery (1 x LR44 included)
• Dimensi: 6.4 x 3.15 x 0.1 inci (164 x 80 x 17 mm)
• Berat Barang: 5.3 auns (145g)
• warna: Hitam
• Jenis Kalkulator: Kejuruteraan/Saintifik
• ASIN: B0CJJ15LVC
• Pengeluar: OSALO
• Negara Asal: China

Image: Diagram showing the dimensions (length, width, thickness) and net weight of the OSALO Scientific Calculator.

Waranti dan Sokongan

OSALO products are manufactured to high-quality standards. For warranty information or technical support, please refer to the warranty card included with your product or visit the official OSALO webtapak. Simpan resit pembelian anda sebagai bukti pembelian.

For further assistance, you may contact the seller directly through the platform where the product was purchased.