1. Uvod i krajview
The Sharp EL520XTBBK is an advanced 2-line scientific calculator designed for a wide range of mathematical and scientific applications. It features a Direct Algebraic Logic (D.A.L.) display, allowing calculations to be entered and displayed in a natural, textbook-like format. This calculator is ideal for students and professionals in fields such as general math, science, pre-algebra, algebra I & II, geometry, trigonometry, statistics, biology, chemistry, and physics.
The calculator operates on a twin power system, utilizing both solar energy and battery backup to ensure reliable performance. It comes with a durable, gloss black finish with white accents and includes a protective hard case for portability and protection.
Slika 1.1: Prednja strana view of the Sharp EL520XTBBK Scientific Calculator.
2. Podešavanje i napajanje
2.1 Izvor napajanja
The EL520XTBBK calculator is equipped with a dual power system: solar power and battery backup. The solar panel, located at the top of the calculator, provides power in well-lit environments. In low-light conditions or when solar power is insufficient, the calculator automatically switches to battery power. No user intervention is required for power source selection.
2.2 Uključivanje/isključivanje
- Da biste uključili kalkulator, pritisnite ON/C dugme.
- Da biste isključili kalkulator, pritisnite 2. F dugme praćeno sa OFF button (which is typically the same as ON/C, indicated by an orange 'OFF' label above it). The calculator also features an auto-power-off function to conserve battery life after a period of inactivity.
3. Uputstvo za upotrebu
3.1 Direktna algebarska logika (DAL)
The D.A.L. system allows you to input equations exactly as they are written, simplifying complex calculations. For example, to calculate sin(30), you would press grijeh, onda 30, a zatim =. The calculator displays the expression as you enter it, making it easy to verify your input.
3.2 Basic Arithmetic and Scientific Functions
Perform standard operations using the number keys (0-9), decimal point (.), and operators (+, -, ×, ÷). The = key executes the calculation.
Access scientific functions such as trigonometric (grijeh, cos, tan, hyp), logarithmic (log, ln), and exponential (Exp, 10x, ex) functions directly or by using the 2. F key for secondary functions. The x2, x3, √, i yx keys are available for powers and roots.
3.3 Statistički proračuni
The calculator supports 1-variable and 2-variable statistical calculations. To enter statistical mode, press MODE and select the appropriate statistical option. Data entry and calculation of mean, standard deviation, and other statistical values are performed using dedicated statistical keys and menus.
3.4 Equation Solvers
The EL520XTBBK includes a 3-variable linear equation solver. Refer to the detailed manual for specific steps on how to input coefficients and solve systems of linear equations.
3.5 Funkcije memorije
The calculator features 8 temporary memory buttons and 4 formula memory buttons. Use STO to store values into memory and RCL to recall them. The M+ i M- keys allow for direct addition or subtraction to the independent memory.
3.6 Physical Constants and Metric Conversions
Access a library of built-in physical constants and perform various metric conversions using the dedicated functions. Consult the full user manual for a complete list of available constants and conversion types.
3.7 Demonstration of Features (Similar Model)
Video 3.7.1: This video demonstrates features such as WriteView display, definable memory keys, and quick fraction/decimal conversion on a similar Sharp scientific calculator model (EL-W535TGBBL). While the model differs, the core functionalities are analogous to the EL520XTBBK.
4. Održavanje
4.1 Čišćenje
To clean the calculator, use a soft, dry cloth. Do not use abrasive cleaners, solvents, or alcohol, as these can damage the casing or display. Avoid getting moisture into any openings.
4.2 Skladištenje
Kada se ne koristi, kalkulator čuvajte u njegovoj zaštitnoj tvrdoj futroli kako biste spriječili ogrebotine i oštećenje ekrana i tipki. Izbjegavajte izlaganje kalkulatora ekstremnim temperaturama, vlazi ili direktnoj sunčevoj svjetlosti tokom dužeg perioda.
5. Otkrivanje problema
5.1 Problemi sa prikazom
- Prazan ekran: Ensure the calculator is in a well-lit area for solar power or that the battery is not depleted. Press ON/C da ga uključite.
- Slabi prikaz: Adjust the contrast setting if available (refer to the full manual for specific instructions). Ensure adequate lighting for solar charging.
5.2 Netačni proračuni
- Check Input: Verify that the numbers and operations were entered correctly using the D.A.L. display.
- Postavke načina rada: Ensure the calculator is in the correct mode (e.g., DEG, RAD, STAT) for your calculation. Press MODE to cycle through or select modes.
- Resetovati: If calculations remain incorrect, a full reset may be necessary. Locate the RESET button (often a small recessed button requiring a thin object like a paperclip) and press it. Note that this will clear all memory and settings.
6. Specifikacije
| Feature | Specifikacija |
|---|---|
| Model | EL520XTBBK |
| Display Type | 2-Line LCD |
| Broj cifara | 10-cifre |
| Izvor napajanja | Na solarno napajanje s rezervnom baterijom |
| Tip kalkulatora | Nauka / Inženjerstvo |
| Vrsta materijala | Guma |
| Boja | Crna |
| Dimenzije (Š x V x D) | 3-5⁄16" x 5-5⁄16" x 5⁄8" (approx. 8.4 x 13.5 x 1.6 cm) |
| Težina | 160 g |
7. Garancija i podrška
For warranty information, technical support, or service inquiries, please refer to the documentation included with your product at the time of purchase or visit the official Sharp Electronics webSačuvajte dokaz o kupovini za slučaj reklamacije.
