1. Муқаддима
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.
Расми 1: Пеш view of the Sharp EL-531WHBK Scientific Calculator.
2. Чорабиниҳои бехатарӣ
- Do not expose the calculator to direct sunlight, high temperatures, or high humidity.
- Avoid dropping the calculator or subjecting it to strong impacts.
- Do not attempt to disassemble or modify the calculator.
- Keep the calculator away from water and other liquids.
- Use only the specified battery type for replacement.
- Батареяҳои истифодашударо мувофиқи қоидаҳои маҳаллӣ партов кунед.
3. Танзимот
3.1 Насби батарея
The Sharp EL-531WHBK calculator is powered by two LR44 batteries, which are included. To install or replace batteries:
- Боварӣ ҳосил кунед, ки ҳисобкунак ба кор андохта шудааст ХОМӮШ.
- Сарпӯши қисмати батареяро дар қафои ҳисобкунак ҷойгир кунед.
- 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.
- Сарпӯши қисмати батареяро иваз кунед ва онро бо винт маҳкам кунед.
Шарҳ: The calculator also features solar power for extended battery life in well-lit conditions.
3.2 Фаъолсозии ибтидоӣ
After battery installation, press the ON/C 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. Дастурҳои истифодабарӣ
This section outlines the various functions and operations of the EL-531WHBK calculator.
Figure 2: Operating the Sharp EL-531WHBK Scientific Calculator.
4.1 Амалҳои асосии арифметикӣ
Enter numbers using the numeric keypad. Use the +, -, ×, ва ÷ keys for addition, subtraction, multiplication, and division, respectively. Press = барои намоиш додани натиҷа.
- Exampле: To calculate 15 + 7: Press 1 5 + 7 =. Result: 22.
4.2 Scientific Functions
The calculator provides a wide array of scientific functions. Many functions require pressing the 2ndF key first to access secondary functions printed above the keys.
- Функсияҳои тригонометрӣ: Истифода баред гуноҳ, cos, тан. For inverse functions (sin⁻¹, cos⁻¹, tan⁻¹), press 2ndF then the respective trigonometric key.
- Функсияҳои логарифмӣ: Истифода баред сабт (пойгоҳи 10) ва ln (логарифми табиӣ).
- Қудратҳо ва решаҳо: Истифода баред x² for squaring, √ for square root. For other powers (xʸ) or roots (ʸ√x), use the yˣ or ʸ√x вазифахо.
- Фраксияҳо: -ро истифода баред a b/c key for fraction input and conversion.
4.3 Функсияҳои хотира
The calculator has independent memory (M) and seven variable memories (A-F, X, Y).
- M+: Adds the displayed value to the independent memory.
- М-: Subtracts the displayed value from the independent memory.
- RCL: Recalls the value from memory.
- СТО: Stores the displayed value into a variable memory. Press СТО then the desired variable key (e.g., A).
4.4 Ҳисобҳои оморӣ
Барои ворид шудан ба ҳолати оморӣ, тугмаи РЕЖИМ then select the appropriate statistical mode (e.g., STAT). Input data using the CD DATA 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. Нигоҳдорӣ
5.1 Тозакунӣ
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 Нигоҳдорӣ
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 Иваз кардани батарея
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. Баррасии мушкилот
| Мушкилот | Сабаби эҳтимолӣ | Ҳалли |
|---|---|---|
| Ҳисобкунак фаъол намешавад. | Батареяҳои мурда ё нодуруст насбшуда. | Check battery polarity or replace batteries (LR44). |
| Дисплей хира аст ё милт-милт мекунад. | Қувваи батарея кам. | Replace batteries. Ensure adequate lighting for solar power. |
| "ERROR" message displayed. | Invalid operation (e.g., division by zero, mathematical overflow). | пахш кунед ON/C to clear the error and re-enter the calculation. Review the operation for mathematical validity. |
| Натиҷаҳои ҳисобҳои нодуруст. | 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. Мушаххасоти
Figure 3: Dimensions of the Sharp EL-531WHBK Scientific Calculator.
| Хусусият | Тафсилот |
|---|---|
| Модели | EL-531WHBK |
| Намоиш | 10+2 digit, 2-line LCD |
| Функсияҳо | 272 функсия |
| Манбаи нерӯ | Battery (2 x LR44), Solar Powered |
| Андозаҳо (L x W x H) | 15.45 x 7.96 x 1.82 см (6.08 x 3.13 x 0.72 инч) |
| Вазн | 110 г (0.24 фунт) |
| Вуруди интерфейси инсон | Тугмаҳо |
| Навъи мавод | Rubber, Silicone |
8. Кафолат ва дастгирӣ
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 webсайт.
For further assistance, you may contact Sharp customer service or visit their official webсайт:
- Sharp Official Webсайт: www.sharp.ca
- Sharp Store on Amazon: Sharp Electronics of Canada Ltd. Store
