Deli ED991ES Scientific Calculator User Manual

1. Giriş

The Deli ED991ES is a scientific calculator designed for students and professionals, offering 417 functions for a wide range of mathematical and scientific calculations. It features a clear LCD display, rubber buttons for comfortable operation, and a protective sliding cover. This calculator is powered by both batteries and solar energy, ensuring reliable performance.

2. Quraşdırma

2.1 Batareyanın quraşdırılması

The Deli ED991ES calculator requires two AA batteries for operation. It also features a solar panel for supplementary power, extending battery life.

1. Kalkulyatorun arxasındakı batareya bölməsinin qapağını tapın.
2. Qapağı oxla göstərilən istiqamətdə sürüşdürün.
3. Insert two AA batteries, ensuring correct polarity (+/-) as marked inside the compartment.
4. Batareya bölməsinin qapağını yerinə etibarlı şəkildə oturana qədər bağlayın.

Qeyd: The calculator utilizes a dual power system (battery and solar). Ensure sufficient light for solar power to function effectively.

2.2 Yandırma/Söndürmə

To turn the calculator on, press the [ON] button. To turn it off, press [SHIFT] izlədi [OFF].

Image 1: The Deli ED991ES Scientific Calculator with its protective sliding cover. This image shows the overall design and key layout.

3. Əməliyyat Təlimatları

The Deli ED991ES offers 417 functions and 8 calculation modes to support various mathematical and scientific tasks. The clear LCD display shows inputs and results effectively.

3.1 Əsas əməliyyatlar

Perform standard arithmetic operations using the number keys and operators ([+], [-], [×], [÷]). basın [=] nəticəni əldə etmək üçün.

3.2 Function Modes

To access different calculation modes, press the [MODE SETUP] button and select the desired mode from the menu. Available modes include:

• COMP: Basic arithmetic and functional calculations.
• STAT: Statistical calculations, including standard deviation.
• CƏDVƏL: Generate number tables from functions.
• EQN: Equation solving.
• MATRİS: Matrix calculations.
• Vektor: Vector calculations.
• BASE-N: Base-N calculations.
• CMPLX: Complex number calculations.

3.3 Əsas funksiyalar

The calculator includes dedicated keys for various functions:

• Triqonometrik funksiyalar: [sin], [cos], [tan] and their inverse functions (accessed via [SHIFT]).
• Loqarifmik Funksiyalar: [log], [ln].
• Güc və Kök Funksiyaları: [x²], [√], [xʸ].
• Yaddaş funksiyaları: [STO] (Store), [RCL] (Recall), [M+] (Memory Plus).
• Fraksiyalı hesablamalar: Use the fraction key to input and calculate fractions.
• Constants and Conversions: Access scientific constants and unit conversions via [SHIFT] or [ALFA].

Image 2: The calculator displaying a numerical result, demonstrating its clear screen and button layout during operation.

Image 3: A user's hand interacting with the calculator, highlighting the ergonomic design of the rubber buttons.

Image 4: The calculator positioned on a worksheet, illustrating its practical use in an academic setting.

4. Baxım

4.1 Təmizləmə

To clean the calculator, wipe it gently with a soft, dry cloth. Do not use abrasive cleaners, solvents, or spray directly onto the device, as this may damage the display or internal components.

4.2 Saxlama

When not in use, always keep the protective sliding cover on the calculator to prevent dust, scratches, and accidental button presses. Store the calculator in a cool, dry place away from direct sunlight and extreme temperatures.

5. Giderme

• Kalkulyator açılmır: Check if the batteries are correctly installed and have sufficient charge. Ensure there is adequate light for the solar panel if operating in low light conditions.
• Yanlış nəticələr: Verify that the calculator is in the correct mode (e.g., DEG/RAD for angles, COMP for basic calculations). Clear previous calculations by pressing [AC].
• Ekran tutqun və ya boşdur: Replace the batteries. Ensure the solar panel is exposed to light.
• Düymələr cavab vermir: Ensure no debris is lodged under the buttons. If the issue persists, try removing and reinserting the batteries to reset the device.

6. Spesifikasiyalar

7. Zəmanət və Dəstək

Zəmanət məlumatı və ya texniki dəstək üçün, zəhmət olmasa, alış zamanı təqdim edilmiş sənədlərə baxın və ya satıcınızla əlaqə saxlayın. Alış-veriş qəbzini alış-veriş sübutu kimi saxlayın.