1. પરિચય
This manual provides detailed instructions for the proper use and maintenance of your Sharp EL-W531 Scientific Calculator. Please read this manual thoroughly before using the calculator to ensure correct operation and to maximize its functionality. The EL-W531 features a WriteView display, allowing for natural input and display of mathematical expressions, and offers 335 functions suitable for various scientific and engineering calculations.
2. ઉત્પાદન ઓવરview
The Sharp EL-W531 is a scientific calculator designed for clarity and ease of use. It features a large WriteView dot-matrix display and a comprehensive set of keys for various mathematical operations.
આકૃતિ 2.1: આગળ view of the Sharp EL-W531 Scientific Calculator, showing the WriteView display and key layout. The display shows a fraction calculation, and keys are organized for easy access to functions.
આકૃતિ 2.2: બાજુ view of the Sharp EL-W531 Scientific Calculator illustrating its compact dimensions. The calculator measures approximately 17 cm (7.0 inches) in length.
3. સેટઅપ
3.1 પાવર સ્ત્રોત
The Sharp EL-W531 calculator operates using both solar power and a single AAA battery. The solar panel provides power in well-lit environments, while the battery ensures operation in low-light conditions.
3.2 Battery Installation/Replacement
- ખાતરી કરો કે કેલ્ક્યુલેટર બંધ છે.
- કેલ્ક્યુલેટરની પાછળ બેટરી કમ્પાર્ટમેન્ટ કવર શોધો.
- Using a small screwdriver, carefully remove the screw securing the cover.
- કવર ઉતારી દો.
- Remove the old AAA battery (if applicable) and insert a new AAA battery, ensuring correct polarity (+/-).
- બેટરી કમ્પાર્ટમેન્ટ કવર બદલો અને તેને સ્ક્રુ વડે સુરક્ષિત કરો.
3.3 પ્રારંભિક પાવર ચાલુ
દબાવો ચાલુ/સી button to turn on the calculator. The display will show the last calculation or be cleared, depending on the previous state.
4. ઓપરેટિંગ સૂચનાઓ
૪.૧ મૂળભૂત ગણતરીઓ
મૂળભૂત અંકગણિત કામગીરી કરવા માટે:
- Enter the first number.
- Press the desired operation key (+, -, ×, ÷).
- Enter the second number.
- દબાવો = પરિણામ દર્શાવવા માટે.
4.2 લખોView ડિસ્પ્લે
આ લખોView ડિસ્પ્લે તમને ઇનપુટ અને view mathematical expressions as they appear in textbooks. Fractions, roots, and other complex expressions are displayed in a natural format. Use the navigation keys (up, down, left, right arrows) to move the cursor within an expression for editing.
4.3 Function Modes
The calculator offers various modes for different types of calculations. Press the મોડ key to cycle through available modes such as:
- સામાન્ય: For general arithmetic and function calculations.
- સ્ટેટ: For statistical calculations.
- EQN: For solving equations.
Refer to the on-screen indicators (e.g., DEG, RAD, GRAD) for the current angle unit. Press DRG► (accessed via બીજો એફ) to change the angle unit.
4.4 Scientific Functions
The EL-W531 includes 335 functions. Many functions are accessed directly, while others require pressing the બીજો એફ key first. Common functions include:
- Trigonometric: sin, cos, tan, and their inverse functions (sin-1, cos-1, તેથી-1).
- Logarithmic/Exponential: log, ln, 10x, ઇx.
- Power/Root: x2, √, xy, y√x.
- અપૂર્ણાંક: a b/c key for mixed numbers and improper fractions.
- મેમરી: STO (store), RCL (recall), M+ (memory plus).
Consult the key labels and the calculator's display for specific function usage.
5. જાળવણી
5.1 સફાઈ
To clean the calculator, wipe it gently with a soft, dry cloth. Do not use abrasive cleaners, solvents, or wet cloths, as these can damage the casing અથવા આંતરિક ઘટકો.
5.2 સંગ્રહ
Store the calculator in a cool, dry place away from direct sunlight, extreme temperatures, and high humidity. If storing for an extended period, it is advisable to remove the battery to prevent leakage.
5.3 બેટરી કેર
Replace the AAA battery promptly when the display becomes dim or erratic. Dispose of used batteries according to local regulations.
6. મુશ્કેલીનિવારણ
| સમસ્યા | સંભવિત કારણ | ઉકેલ |
|---|---|---|
| કેલ્ક્યુલેટર ચાલુ થતું નથી. | Low or dead battery; insufficient light for solar panel. | Replace the AAA battery. Ensure adequate lighting for the solar panel. |
| ડિસ્પ્લે ઝાંખું અથવા ખાલી છે. | Low battery; insufficient light. | Replace the AAA battery. Move to a brighter area. |
| ખોટી ગણતરીના પરિણામો. | Incorrect mode setting; input error; memory error. | Check the current mode (e.g., DEG/RAD). Clear all memory (બીજો એફ M-CLR). Re-enter the calculation carefully. |
| "ERROR" message displayed. | Mathematical error (e.g., division by zero, invalid input). | દબાવો ચાલુ/સી to clear the error. Review your input and the mathematical operation. |
7. સ્પષ્ટીકરણો
- બ્રાન્ડ: તીક્ષ્ણ
- મોડલ: EL-W531
- ડિસ્પ્લે પ્રકાર: Dot-matrix LCD, WriteView
- ડિસ્પ્લે રિઝોલ્યુશન: 96 x 32 પિક્સેલ્સ
- કાર્યો: 335
- પાવર સ્ત્રોત: Solar and 1 x AAA battery (included)
- નિયંત્રણ પ્રકાર: બટનો
- પરિમાણો (W x D x H): ૧૪.૭૩ x ૧૩.૪૬ x ૧૫.૪૯ સેમી (આશરે ૫.૮ x ૫.૩ x ૬.૧ ઇંચ)
- વજન: આશરે 104.33 ગ્રામ (3.68 ઔંસ)
- રંગ: Metallic Green (model XH-GR)
8. વોરંટી અને સપોર્ટ
For information regarding warranty coverage, technical support, or service, please refer to the warranty card included with your product or visit the official Sharp webસાઇટ. ગ્રાહક સેવા માટેની સંપર્ક વિગતો સામાન્ય રીતે ઉત્પાદકની સાઇટ પર ઉપલબ્ધ હોય છે webસાઇટ
