1. Introduktion
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. Produktet er slutview
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.
Figur 2.1: Front 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.
Figur 2.2: Side view of the Sharp EL-W531 Scientific Calculator illustrating its compact dimensions. The calculator measures approximately 17 cm (7.0 inches) in length.
3. Opsætning
3.1 Strømkilde
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 Batteriinstallation/udskiftning
- Sørg for, at lommeregneren er slukket.
- Find batteridækslet på bagsiden af lommeregneren.
- Using a small screwdriver, carefully remove the screw securing the cover.
- Skub dækslet af.
- Remove the old AAA battery (if applicable) and insert a new AAA battery, ensuring correct polarity (+/-).
- Sæt batterirummets dæksel på igen og fastgør det med skruen.
3.3 Indledende tænding
Tryk på ON/C button to turn on the calculator. The display will show the last calculation or be cleared, depending on the previous state.
4. Betjeningsvejledning
4.1 Basic Calculations
Sådan udfører du grundlæggende aritmetiske operationer:
- Indtast det første tal.
- Tryk på den ønskede betjeningstast (+, -, ×, ÷).
- Indtast det andet tal.
- Trykke = for at vise resultatet.
4.2 SkrivView Vise
The WriteView display giver dig mulighed for at indtaste og 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 MODE key to cycle through available modes such as:
- NORMAL: For general arithmetic and function calculations.
- STAT: 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 2. klasse) 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 2. klasse key first. Common functions include:
- Trigonometric: sin, cos, tan og deres inverse funktioner (sin-1, fordi-1, så-1).
- Logarithmic/Exponential: logaritme, ln, 10xex.
- Power/Root: x2, √, xy, y√x.
- Brøker: a b/c key for mixed numbers and improper fractions.
- Hukommelse: STO (store), RCL (recall), M+ (memory plus).
Consult the key labels and the calculator's display for specific function usage.
5. Vedligeholdelse
5.1 Rengøring
For at rengøre lommeregneren skal du forsigtigt tørre den af med en blød, tør klud. Brug ikke slibende rengøringsmidler, opløsningsmidler eller våde klude, da disse kan beskadige lommeregneren.asing eller interne komponenter.
5.2 Opbevaring
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 Pleje af batterier
Replace the AAA battery promptly when the display becomes dim or erratic. Dispose of used batteries according to local regulations.
6. Fejlfinding
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Calculator does not turn on. | Low or dead battery; insufficient light for solar panel. | Replace the AAA battery. Ensure adequate lighting for the solar panel. |
| Skærmen er svag eller tom. | Low battery; insufficient light. | Replace the AAA battery. Move to a brighter area. |
| Forkerte beregningsresultater. | Incorrect mode setting; input error; memory error. | Check the current mode (e.g., DEG/RAD). Clear all memory (2. klasse M-CLR). Re-enter the calculation carefully. |
| "ERROR" message displayed. | Mathematical error (e.g., division by zero, invalid input). | Trykke ON/C to clear the error. Review your input and the mathematical operation. |
7. Specifikationer
- Mærke: Skarp
- Model: EL-W531
- Skærmtype: Dot-matrix LCD, WriteView
- Skærmopløsning: 96 x 32 pixels
- Funktioner: 335
- Strømkilde: Solar and 1 x AAA battery (included)
- Kontroltype: Knapper
- Dimensioner (B x D x H): 8 x 16.8 x 1.4 cm (ca. 3.15 x 6.61 x 0.55 tommer)
- Vægt: Cirka 104.33 g (3.68 oz)
- Farve: Metallic Green (model XH-GR)
8. Garanti og support
For information om garantidækning, teknisk support eller service henvises til garantikortet, der følger med dit produkt, eller besøg den officielle Sharp-side. webKontaktoplysninger til kundeservice findes typisk på producentens hjemmeside. webwebsted.
