Sharp EL-2135 12-Digit Electronic Desktop Calculator User Manual

1. Sissejuhatus

This manual provides detailed instructions for the proper use and maintenance of your Sharp EL-2135 12-digit electronic desktop calculator. Designed for general purpose calculations, this lightweight and ergonomically designed calculator is ideal for both school and office environments. It features a clear 12-digit LCD display and operates efficiently with dual power sources.

2. Põhiomadused

• 12-kohaline LCD-ekraan: Provides clear and easy-to-read numerical output.
• Comfortable Desktop Size: Optimized dimensions for stable and convenient use on any desk.
• Elegant Gray Body: Durable ABS plastic construction with a professional aesthetic.
• Square Root Function: Dedicated button for quick square root calculations.
• Kahekordne toiteallikas: Operates on both solar power and a lithium-ion battery, ensuring functionality even in low light conditions.

3. Seadistamine

3.1 Sisselülitamine

The Sharp EL-2135 calculator utilizes a dual power system: solar and battery. It will automatically draw power from the solar cell when sufficient light is available. In dim lighting or darkness, the included lithium-ion battery will provide power. No manual power-on switch is typically required; the calculator activates upon light exposure or key press.

3.2 Patareide paigaldamine/vahetamine

The calculator comes with a lithium-ion battery pre-installed. If battery replacement becomes necessary:

1. Ensure the calculator is off or in a well-lit area to utilize solar power.
2. Otsige üles patareipesa seadme tagaküljel.
3. Avage ettevaatlikult sahtli kaas.
4. Remove the old battery and insert a new CR2032 lithium-ion battery, ensuring correct polarity (+/-).
5. Sulgege akupesa kaas kindlalt.

Note: Dispose of used batteries according to local regulations.

4. Kasutusjuhised

4.1 Aritmeetika põhitehted

Perform addition, subtraction, multiplication, and division using the dedicated keys:

• Lisa (+): Sisestage esimene number, vajutage +, sisestage teine ​​number ja vajutage =.
• Lahutamine (-): Sisestage esimene number, vajutage -, sisestage teine ​​number ja vajutage =.
• Korrutamine (×): Sisestage esimene number, vajutage ×, sisestage teine ​​number ja vajutage =.
• Jaotus (÷): Sisestage esimene number, vajutage ÷, sisestage teine ​​number ja vajutage =.

4.2 Erifunktsioonid

• Ruutjuur (√): Enter a number, then press the √ key to calculate its square root.
• Protsenttage (%): Kasutatakse protsentide jaokstage arvutused. Näiteksample, to calculate 10% of 200: Enter 200, press ×, sisestage 10, vajutage %.
• Üldsumma (GT): Accumulates the results of all calculations performed after the last GT clear. Press GT kogusumma kuvamiseks.
• Mark-up/Mark-down (MU): Used for profit margin calculations.
• Kustuta sisestus (CE): Clears the last entered number or operation without affecting previous calculations.
• Clear All (CA): Kustutab kõik kirjed ja arvutused, lähtestades kalkulaatori.
• Mälu pluss (M+): Lisab kuvatud väärtuse mällu.
• Mälu miinus (M-): Lahutab mälust kuvatud väärtuse.
• Mälu tagasikutsumine (RM): Kuvab mällu hetkel salvestatud väärtuse.
• Tühjenda mälu (CM): Tühjendab mälu.

4.3 Ekraan

The 12-digit LCD display shows numbers clearly. If the result of a calculation exceeds 12 digits, an error indicator may appear, or the number may be displayed in scientific notation if supported.

5. Hooldus

5.1 Puhastamine

Kalkulaatori puhastamiseks kasutage pehmet ja kuiva lappi. Kangekaelse mustuse korral nühkige seda kergelt.ampen the cloth with water or a mild, non-abrasive cleaner. Avoid using harsh chemicals, solvents, or abrasive materials, as these can damage the casing ja kuva.

5.2 Säilitamine

Store the calculator in a cool, dry place away from direct sunlight and extreme temperatures. Prolonged exposure to heat or cold can affect battery life and electronic components. When not in use for extended periods, ensure it is stored in a manner that prevents accidental key presses.

6. Veaotsing

• Ekraan on tühi või tuhm:
  • Ensure the calculator is in a well-lit area for solar power.
  • Check if the battery needs replacement. Refer to Section 3.2.
• Valed arvutused:
  • Vajutage nuppu CA (Clear All) button to reset the calculator.
  • Verify that you are entering numbers and operations correctly.
• Klahvid ei reageeri:
  • Clean the keys and surrounding areas to remove any debris.
  • If the issue persists, the calculator may require professional servicing.

7. Tehnilised andmed

8. Tootepildid

9. Garantii ja tugi

For warranty information, please refer to the documentation included with your purchase or contact your retailer. For technical support or service inquiries, please visit the official Sharp webveebisaidilt või võtke ühendust nende klienditeenindusega. Hoidke ostutšekk ostutõendina alles garantiinõuete korral.