1. Įvadas
This manual provides detailed instructions for the proper use and maintenance of your Sharp EL-520TG scientific calculator. The EL-520TG is designed for a wide range of mathematical and scientific calculations, featuring Direct Algebraic Logic (D.A.L.) for intuitive input, 419 functions, and 9 memory registers. Please read this manual thoroughly to ensure optimal performance and longevity of your device.
Image 1.1: Sharp EL-520TG Scientific Calculator, shown with its protective case and a premium warranty card.
2. Sąranka
2.1. Maitinimo šaltinis
The Sharp EL-520TG calculator is battery-powered. Ensure fresh batteries are installed for reliable operation. Refer to the battery compartment on the back of the unit for battery type and installation instructions.
2.2. Pradinis įjungimas
Paspauskite ON/C key to power on the calculator. The display should show '0' or a previous calculation result. If the display is blank or dim, replace the batteries.
2.1 vaizdas: priekis view of the Sharp EL-520TG Scientific Calculator, displaying its keypad and screen.
3. Naudojimo instrukcijos
3.1. Pagrindinės operacijos
- Maitinimo įjungimas/išjungimas: Paspauskite ON/C Norėdami įjungti, paspauskite 2-oji F tada IŠJUNGTA išjungti.
- Numerio įvedimas: Use the numeric keys (0-9) and the decimal point key (.) to enter numbers.
- Aritmetinės operacijos: Naudokite +, -, ×, ÷ sudėties, atimties, daugybos ir dalybos veiksmams. Paspauskite = įvykdyti.
- Aiškus įrašas: Paspauskite ON/C to clear the current entry.
- Ištrinti: Naudokite DEL klavišą, kad ištrintumėte paskutinį įvestą skaitmenį.
3.2. Funkcijos
The EL-520TG features 419 functions, accessible directly or via the 2-oji F key for secondary functions printed above the keys.
- Direct Algebraic Logic (D.A.L.): Input calculations as they are written, following standard mathematical order of operations.
- Trigonometrinės funkcijos: Naudokite nuodėmė, cos, įdegis for sine, cosine, and tangent. Use 2-oji F tada nuodėmė⁻¹, nes⁻¹, įdegis⁻¹ for inverse trigonometric functions.
- Logaritminės funkcijos: Naudokite žurnalas for common logarithm (base 10) and ln for natural logarithm (base e).
- Atminties funkcijos: The calculator has 9 memory registers. Use STO to store a value and RCL to recall a stored value.
- Statistinės funkcijos: Access statistical modes via REŽIMAS. Calculate standard deviation and other statistical values.
- Laipsnio ir šaknies funkcijos: Naudokite x² for square, √ kvadratinei šakniai ir yˣ dėl bendrųjų įgaliojimų.
3.3. Ekrano režimai
Adjust the display format using the NUSTATYTI meniu.
- PAtaisyti: Specifies the number of decimal places.
- SCI: Displays results in scientific notation.
- ENG: Displays results in engineering notation.
- DEG/RAD/GRAD: Selects the angle unit (degrees, radians, or gradians).
4. Priežiūra
4.1. Valymas
Wipe the calculator's exterior with a soft, dry cloth. Do not use abrasive cleaners or solvents, as they may damage the casing arba ekranas.
4.2. Baterijos keitimas
When the display becomes dim or calculations are erratic, it is time to replace the batteries. Refer to the battery compartment cover for the correct battery type and polarity. Ensure the calculator is turned off before replacing batteries.
4.3. Sandėliavimas
Store the calculator in a cool, dry place, away from direct sunlight and extreme temperatures. Use the provided protective case to prevent scratches and damage to the keys and display.
Image 4.1: The Sharp EL-520TG calculator securely stored within its protective case.
Image 4.2: The black protective case, designed to safeguard the Sharp EL-520TG calculator.
5. Problemų sprendimas
- Tuščias arba blankus ekranas: Patikrinkite baterijų įdėjimą. Jei reikia, pakeiskite baterijas.
- Neteisingi rezultatai: Verify the input values and the selected mode (e.g., DEG/RAD). Ensure all previous calculations are cleared.
- Skaičiuoklė neatsako: Pabandykite paspausti RESET button (usually a small button on the back, requiring a thin object like a paperclip to press). This will clear all memory and settings.
- Klaidos pranešimai: Consult the full product manual for specific error code meanings. Common errors include 'ERROR' for mathematical impossibilities (e.g., division by zero) or 'OVERFLOW' for results exceeding the calculator's capacity.
6. Specifikacijos
| Prekės ženklas | Aštrus |
| Modelis | EL-520TG |
| Skaičiuoklės tipas | Mokslinė / inžinerija |
| Funkcijos | 419 |
| Atminties registrai | 9 |
| Įvesties logika | Direct Algebraic Logic (D.A.L.) |
| Maitinimo šaltinis | Maitinamas baterijomis |
| UPC | 634397960069 |
7. Garantija ir palaikymas
This product includes a premium warranty extension. Please refer to the warranty card for specific terms, conditions, and duration of coverage. Keep your proof of purchase for any warranty claims.
Image 7.1: The Premium Warranty card provided with the product.
For technical support or further assistance, please contact the retailer or refer to the official Sharp support channels. Detailed contact information is typically available on the product packaging or the manufacturer's websvetainę.
