1. Okwu mmalite
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. Nhazi
2.1. Ike Isi iyi
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. Ike izizi
Pịa 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.
Foto 2.1: N'ihu view of the Sharp EL-520TG Scientific Calculator, displaying its keypad and screen.
3. Ntuziaka ọrụ
3.1. Ọrụ ndị bụ isi
- Gbanyụọ/ Gbanyụọ: Pịa ON/C to turn on. Press 2nd F mgbe ahụ Gbanyụọ gbanyụọ.
- Number Entry: Use the numeric keys (0-9) and the decimal point key (.) to enter numbers.
- Ọrụ mgbakọ na mwepụ: Jiri +, -, ×, ÷ for addition, subtraction, multiplication, and division. Press = ime ihe.
- Clear Entry: Pịa ON/C to clear the current entry.
- Hichapụ: Jiri ihe DEL key to delete the last entered digit.
3.2. Ọrụ
The EL-520TG features 419 functions, accessible directly or via the 2nd 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.
- Ọrụ Trigonometric: Jiri mmehie, cos, tan for sine, cosine, and tangent. Use 2nd F mgbe ahụ mmehie⁻¹, cos⁻¹, tan⁻¹ for inverse trigonometric functions.
- Logarithmic Functions: Jiri ndekọ for common logarithm (base 10) and ln for natural logarithm (base e).
- Ọrụ ebe nchekwa: The calculator has 9 memory registers. Use STO to store a value and RCL to recall a stored value.
- Ọrụ ndekọ aha: Access statistical modes via MODE. Calculate standard deviation and other statistical values.
- Power and Root Functions: Jiri x² for square, √ for square root, and yˣ for general powers.
3.3. Ụdị ngosi
Adjust the display format using the MELITE menu.
- Dezie: 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. Nlekọta
4.1. Nhicha
Wipe the calculator's exterior with a soft, dry cloth. Do not use abrasive cleaners or solvents, as they may damage the casing ma ọ bụ ngosipụta.
4.2. Ngbanwe batrị
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. Nchekwa
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. Nchọpụta nsogbu
- Ngosipụta efu ma ọ bụ gbagọrọ agbagọ: Check battery installation. Replace batteries if necessary.
- Nsonaazụ ezighi ezi: Verify the input values and the selected mode (e.g., DEG/RAD). Ensure all previous calculations are cleared.
- Ihe mgbako anaghị aza: Gbalịa ịpịa Tụgharịa button (usually a small button on the back, requiring a thin object like a paperclip to press). This will clear all memory and settings.
- Ozi mperi: 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. Nkọwapụta
| Ụdị | Nkọ |
| Nlereanya | EL-520TG |
| Ụdị mgbako | Scientific / Engineering |
| Ọrụ | 419 |
| Ndebanye aha ebe nchekwa | 9 |
| Ntinye Logic | Direct Algebraic Logic (D.A.L.) |
| Isi Iyi Ike | Akwanyere batrị |
| UPC | 634397960069 |
7. Akwụkwọ ikike na nkwado
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 websaịtị.
