Sharp EL-145T BL Calculator User Manual

1. Úvod

This manual provides detailed instructions for the proper use and maintenance of your Sharp EL-145T BL 14-digit desktop calculator. Designed for office tasks, this calculator features tax calculation, percentage calculation, root calculation, and a 4-key memory system. It operates using both solar power and a backup battery, ensuring reliable performance.

Please read this manual thoroughly before using the calculator to ensure optimal performance and longevity.

2. Bezpečnostní informace

• Do not expose the calculator to direct sunlight for extended periods or to extreme temperatures.
• Zabraňte pádu kalkulačky na zem nebo jejímu vystavení silným nárazům.
• Uchovávejte kalkulačku mimo dosah vody a jiných kapalin.
• Do not attempt to disassemble or modify the calculator. Refer all servicing to qualified personnel.
• Zlikvidujte baterie v souladu s místními předpisy.

3. Konec produktuview

The Sharp EL-145T BL is a compact and efficient 14-digit desktop calculator. Its angled LCD display enhances readability, making it suitable for various calculations.

Obrázek 1: Přední view of the Sharp EL-145T BL calculator, showing the 14-digit display, solar panel, and key layout. The calculator features a black body with blue accents.

Klíčové vlastnosti:

• 14-digit angled LCD display for clear viewIng.
• Dual power source: Solar and battery (1 x LR-54/LR44).
• Dedicated tax calculation keys (+TAX, -TAX, RATE SET, RATE RECALL).
• Procenttage calculation function (%).
• Square root calculation (√).
• 4-key memory functions (M+, M-, RM, CM).
• Clear Entry (CE) and All Clear (CA/C) keys.

Komponenty:

The calculator consists of a main unit with a display panel, a solar panel, and a keypad. The keypad includes numeric keys (0-9, .), arithmetic operation keys (+, -, ×, ÷, =), and special function keys.

Obrázek 2: The Sharp EL-145T BL calculator positioned on a wooden desk, demonstrating its compact size and suitability for office environments. A highlighter and sticky note are visible nearby.

4. Nastavení

Zdroj napájení:

The EL-145T BL calculator is designed for dual power operation:

• Solární energie: The calculator primarily operates on solar power when sufficient light is available. Ensure the solar panel (located above the display) is exposed to light.
• Napájení baterie: A backup battery (1 x LR-54 or LR44) is included to provide power in low-light conditions.

Instalace/výměna baterie:

1. Ensure the calculator is turned off or in a well-lit area to utilize solar power.
2. Najděte kryt přihrádky na baterie na zadní straně kalkulačky.
3. Opatrně sejměte kryt.
4. Insert a new LR-54 or LR44 battery, ensuring the correct polarity (+/-) as indicated inside the compartment.
5. Bezpečně nasaďte kryt prostoru pro baterie.

Note: The calculator may power on automatically once sufficient light or battery power is detected.

5. Návod k obsluze

Základní aritmetické operace:

Enter numbers and use the standard arithmetic keys (+, -, ×, ÷) followed by the equals key (=) to perform calculations.

• Přidání: [Number 1] [+] [Number 2] [=]
• Odčítání: [Number 1] [-] [Number 2] [=]
• Násobení: [Number 1] [×] [Number 2] [=]
• Divize: [Number 1] [÷] [Number 2] [=]

Jasné funkce:

• [CA/C] (All Clear): Clears all entries and memory, resetting the calculator.
• [CE] (Clear Entry): Clears the last entered number or the current calculation result without affecting previous entries or memory.

Procenttage Výpočet:

Pro výpočet procenttages, use the [%] klíč.

• Exampten: Calculate 15% of 200.
  Vstupte [200] [×] [15] [%]Výsledek bude 30.
• Exampten: Add 15% to 200.
  Vstupte [200] [+] [15] [%]Výsledek bude 230.

Výpočet daně:

The calculator features dedicated keys for tax calculations. First, set the tax rate.

1. Stanovení daňové sazby:
   Zadejte daňovou sazbu (např. [8] for 8%). Press [RATE SET]Daňová sazba je nyní uložena.
2. Přidání daně:
   Enter the amount (e.g., [100]). Stiskněte [+TAX]. The display will show the amount with tax added.
3. Odečtení daně:
   Enter the amount (e.g., [108]). Stiskněte [-TAX]. The display will show the amount with tax removed.
4. Připomenutí daňové sazby:
   Stiskněte [RATE RECALL] na view aktuálně stanovená daňová sazba.

Funkce paměti:

The 4-key memory allows you to store and recall values.

• [M+] (Memory Plus): Přičte zobrazenou hodnotu do paměti.
• [M-] (Memory Minus): Odečte zobrazenou hodnotu z paměti.
• [RM] (Recall Memory): Zobrazuje hodnotu aktuálně uloženou v paměti.
• [CM] (Clear Memory): Clears the memory content. (Often combined with RM, pressing RM twice clears memory).

Výpočet druhé odmocniny:

To calculate the square root of a number, enter the number and then press the [√] klíč.

• Exampten: Calculate the square root of 81.
  Vstupte [81] [√]Výsledek bude 9.

6. Údržba

• Čištění: Use a soft, dry cloth to clean the calculator's exterior. For stubborn dirt, slightly dampen the cloth with water and a mild detergent, then wipe dry immediately. Do not use abrasive cleaners or solvents.
• Skladování: When not in use for extended periods, store the calculator in a cool, dry place away from direct sunlight and extreme temperatures.
• Životnost baterie: The battery life is approximately 2 years when used for 1 hour per day under solar power. Replace the battery when the display becomes dim or erratic in low light.

7. Řešení problémů

8. Specifikace

9. Záruka a podpora

Sharp products are manufactured to high-quality standards. For specific warranty information, please refer to the warranty card included with your purchase or contact your local Sharp customer support. Keep your purchase receipt as proof of purchase.

For further assistance or inquiries, please visit the official Sharp webnebo kontaktujte jejich oddělení zákaznických služeb.