1. Giriş
The Sharp EL-531WHBK is a scientific calculator designed for a wide range of mathematical and scientific calculations. It features a 10+2 digit, 2-line LCD display and offers 272 functions, including statistical calculations, fraction calculations, and algebraic formula notation. This manual provides detailed instructions for the proper use and maintenance of your calculator.

Şekil 1: Ön view of the Sharp EL-531WHBK Scientific Calculator.
2. Güvenlik Önlemleri
- Do not expose the calculator to direct sunlight, high temperatures, or high humidity.
- Hesap makinesini düşürmekten veya sert darbelere maruz bırakmaktan kaçının.
- Do not attempt to disassemble or modify the calculator.
- Hesap makinesini sudan ve diğer sıvılardan uzak tutun.
- Değiştirme işlemi için yalnızca belirtilen pil tipini kullanın.
- Kullanılmış pilleri yerel düzenlemelere göre atın.
3. Kurulum
3.1 Pil Kurulumu
The Sharp EL-531WHBK calculator is powered by two LR44 batteries, which are included. To install or replace batteries:
- Hesap makinesinin açık olduğundan emin olun KAPALI.
- Hesap makinesinin arkasındaki pil bölmesi kapağını bulun.
- Using a small screwdriver, carefully remove the screw securing the cover.
- Remove the cover and insert the two LR44 batteries, ensuring the correct polarity (+/-) as indicated inside the compartment.
- Pil bölmesi kapağını yerine takın ve vidayla sabitleyin.
Not: The calculator also features solar power for extended battery life in well-lit conditions.
3.2 İlk Güç Açma
Pil takıldıktan sonra, aşağıdaki tuşa basın. AÇIK/K. key to turn on the calculator. The display should show "0" or a similar initial state. If the display is blank or shows unusual characters, recheck battery installation or replace with new batteries.
4. Kullanım Talimatları
This section outlines the various functions and operations of the EL-531WHBK calculator.

Figure 2: Operating the Sharp EL-531WHBK Scientific Calculator.
4.1 Temel Aritmetik İşlemler
Sayısal tuş takımını kullanarak sayı girin. Kullanın +, -, ×, Ve ÷ keys for addition, subtraction, multiplication, and division, respectively. Press = Sonucu görüntülemek için.
- Examptarih: 15 + 7 işlemini hesaplamak için: Tuşa basın. 1 5 + 7 =. Result: 22.
4.2 Bilimsel Fonksiyonlar
The calculator provides a wide array of scientific functions. Many functions require pressing the 2.F. key first to access secondary functions printed above the keys.
- Trigonometrik Fonksiyonlar: Kullanmak günah, çünkü, bronz. For inverse functions (sin⁻¹, cos⁻¹, tan⁻¹), press 2.F. then the respective trigonometric key.
- Logaritmik Fonksiyonlar: Kullanmak kayıt (10 tabanında) ve ln (doğal logaritma).
- Güçler ve Kökler: Kullanmak x² Kareleme için, √ for square root. For other powers (xʸ) or roots (ʸ√x), use the yˣ or ʸ√x Fonksiyonlar.
- kesirler: Kullanın ABC Kesir girişi ve dönüştürme için tuş.
4.3 Bellek Fonksiyonları
The calculator has independent memory (M) and seven variable memories (A-F, X, Y).
- M+: Adds the displayed value to the independent memory.
- M-: Subtracts the displayed value from the independent memory.
- RCL: Recalls the value from memory.
- STO: Stores the displayed value into a variable memory. Press Tanrı'ya şükür then the desired variable key (e.g., A).
4.4 Statistical Calculations
To enter statistical mode, press MOD then select the appropriate statistical mode (e.g., STAT). Input data using the VERİ CD'si key. The calculator can perform various statistical calculations, including mean, standard deviation, and regression analysis.
4.5 Angle Unit Modes
The calculator supports three angle unit modes: Degrees (DEG), Radians (RAD), and Gradians (GRAD). Press the DRG key repeatedly to cycle through these modes. The current mode is indicated on the display.
5. Bakım
5.1 Temizlik
To clean the calculator, wipe it gently with a soft, dry cloth. Do not use abrasive cleaners, solvents, or spray directly onto the calculator.
5.2 Depolama
When not in use for extended periods, store the calculator in its protective hard case in a cool, dry place, away from direct sunlight and extreme temperatures.
5.3 Pil Değişimi
If the display becomes dim or calculations are erratic, it may be time to replace the batteries. Refer to section 3.1 for battery installation instructions. The calculator uses two LR44 batteries.
6. Sorun Giderme
| Sorun | Olası Neden | Çözüm |
|---|---|---|
| Hesap makinesi açılmıyor. | Piller bitmiş veya yanlış takılmış. | Check battery polarity or replace batteries (LR44). |
| Ekran soluk veya titriyor. | Pil gücü düşük. | Replace batteries. Ensure adequate lighting for solar power. |
| "ERROR" message displayed. | Invalid operation (e.g., division by zero, mathematical overflow). | Basmak AÇIK/K. to clear the error and re-enter the calculation. Review the operation for mathematical validity. |
| Yanlış hesaplama sonucu. | Incorrect mode setting (e.g., angle unit), input error. | Check the angle unit (DEG/RAD/GRAD). Verify input sequence. Reset calculator if necessary (refer to manual for reset procedure, usually involves a small reset button or specific key combination). |
7. Özellikler

Figure 3: Dimensions of the Sharp EL-531WHBK Scientific Calculator.
| Özellik | Detay |
|---|---|
| Örnek | EL-531WHBK |
| Görüntülemek | 10+2 digit, 2-line LCD |
| Fonksiyonlar | 272 fonksiyon |
| Güç Kaynağı | Battery (2 x LR44), Solar Powered |
| Boyutlar (U x G x Y) | 15.45 x 7.96 x 1.82 cm (6.08 x 3.13 x 0.72 inç) |
| Ağırlık | 110 gr (0.24 lb) |
| İnsan Arayüzü Girişi | Düğmeler |
| Malzeme Türü | Kauçuk, Silikon |
8. Garanti ve Destek
Sharp products are manufactured to high quality standards. For warranty information and technical support, please refer to the warranty card included with your product or visit the official Sharp support webalan.
For further assistance, you may contact Sharp customer service or visit their official webalan:
- Sharp Official Webalan: www.sharp.ca
- Sharp Store on Amazon: Sharp Electronics of Canada Ltd. Store





