Sharp EL-145T BL -laskimen käyttöohje

1. Johdanto

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. Turvallisuustiedot

• Do not expose the calculator to direct sunlight for extended periods or to extreme temperatures.
• Avoid dropping the calculator or subjecting it to strong impacts.
• Pidä laskin poissa vedestä ja muista nesteistä.
• Do not attempt to disassemble or modify the calculator. Refer all servicing to qualified personnel.
• Hävitä paristot paikallisten määräysten mukaisesti.

3. Tuote ohiview

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.

Kuva 1: Edessä 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.

Tärkeimmät ominaisuudet:

• 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).
• Prosenttitage calculation function (%).
• Square root calculation (√).
• 4-key memory functions (M+, M-, RM, CM).
• Clear Entry (CE) and All Clear (CA/C) keys.

Komponentit:

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.

Kuva 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. Asennus

Virtalähde:

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

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

Akun asennus/vaihto:

1. Ensure the calculator is turned off or in a well-lit area to utilize solar power.
2. Etsi laskimen takaa paristolokeron kansi.
3. Poista kansi varovasti.
4. Insert a new LR-54 or LR44 battery, ensuring the correct polarity (+/-) as indicated inside the compartment.
5. Aseta paristolokeron kansi kunnolla takaisin paikalleen.

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

5. Käyttöohjeet

Aritmeettiset perusoperaatiot:

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

• Lisäys: [Number 1] [+] [Number 2] [=]
• Vähennyslasku: [Number 1] [-] [Number 2] [=]
• Kertominen: [Number 1] [×] [Number 2] [=]
• Jaosto: [Number 1] [÷] [Number 2] [=]

Selkeät toiminnot:

• [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.

Prosenttitage Laskenta:

Laskemaan prosenttiatages, use the [%] avain.

• Exampseuraavat: Calculate 15% of 200.
  Enter [200] [×] [15] [%]Tulos on 30.
• Exampseuraavat: Add 15% to 200.
  Enter [200] [+] [15] [%]Tulos on 230.

Verolaskenta:

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

1. Veroprosentin asettaminen:
   Syötä veroprosentti (esim. [8] for 8%). Press [RATE SET]Veroprosentti on nyt tallennettu.
2. Veron lisääminen:
   Enter the amount (e.g., [100]). Paina [+TAX]. The display will show the amount with tax added.
3. Veron vähentäminen:
   Enter the amount (e.g., [108]). Paina [-TAX]. The display will show the amount with tax removed.
4. Verokannan palauttaminen:
   Paina [RATE RECALL] to view the currently set tax rate.

Muistin toiminnot:

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

• [M+] (Memory Plus): Lisää näytetyn arvon muistiin.
• [M-] (Memory Minus): Vähentää näytetyn arvon muistista.
• [RM] (Recall Memory): Näyttää muistiin tallennetun arvon.
• [CM] (Clear Memory): Clears the memory content. (Often combined with RM, pressing RM twice clears memory).

Neliöjuuren laskenta:

Laskeaksesi luvun neliöjuuren, syötä luku ja paina sitten [√] avain.

• Exampseuraavat: Calculate the square root of 81.
  Enter [81] [√]Tulos on 9.

6. Huolto

• Puhdistus: 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.
• Varastointi: When not in use for extended periods, store the calculator in a cool, dry place away from direct sunlight and extreme temperatures.
• Akun kesto: 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. Vianmääritys

8. Tekniset tiedot

9. Takuu ja tuki

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 websivustolla tai ota yhteyttä asiakaspalveluun.