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

1. Inngangur

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. Helstu eiginleikar

• 12 stafa LCD skjár: 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.
• Tvöfaldur aflgjafi: Operates on both solar power and a lithium-ion battery, ensuring functionality even in low light conditions.

3. Uppsetning

3.1 Kveikt á

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 Uppsetning/skipti rafhlöðu

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. Finndu rafhlöðuhólfið á bakhlið tækisins.
3. Opnaðu lokið á hólfinu varlega.
4. Remove the old battery and insert a new CR2032 lithium-ion battery, ensuring correct polarity (+/-).
5. Lokaðu rafhlöðuhólfinu tryggilega.

Note: Dispose of used batteries according to local regulations.

4. Notkunarleiðbeiningar

4.1 Grunnreikniaðgerðir

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

• Viðbót (+): Sláðu inn fyrstu töluna, ýttu á +, sláðu inn aðra töluna, ýttu á =.
• Frádráttur (-): Sláðu inn fyrstu töluna, ýttu á -, sláðu inn aðra töluna, ýttu á =.
• Margföldun (×): Sláðu inn fyrstu töluna, ýttu á ×, sláðu inn aðra töluna, ýttu á =.
• Deiling (÷): Sláðu inn fyrstu töluna, ýttu á ÷, sláðu inn aðra töluna, ýttu á =.

4.2 Séraðgerðir

• Kvaðratrót (√): Enter a number, then press the √ key to calculate its square root.
• Prósentatage (%): Notað fyrir prósentutage útreikningar. Til dæmisample, to calculate 10% of 200: Enter 200, press ×, sláðu inn 10, ýttu á %.
• Heildartölur (GT): Accumulates the results of all calculations performed after the last GT clear. Press GT til að sýna heildarupphæðina.
• Mark-up/Mark-down (MU): Used for profit margin calculations.
• Hreinsa færslu (CE): Clears the last entered number or operation without affecting previous calculations.
• Clear All (CA): Clears all entries and calculations, resetting the calculator.
• Minni plús (M+): Bætir birtu gildi við minnið.
• Minni mínus (M-): Dregur birt gildi frá minninu.
• Recall Memory (RM): Sýnir gildið sem er geymt í minninu.
• Clear Memory (CM): Hreinsar minnið.

4.3 Skjár

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. Viðhald

5.1 Þrif

Til að þrífa reiknivélina skal nota mjúkan, þurran klút. Fyrir þrjósk óhreinindi skal þurrka örlítið.ampÞurrkið klútinn með vatni eða mildu, ekki slípandi hreinsiefni. Forðist að nota sterk efni, leysiefni eða slípandi efni, þar sem þau geta skemmt tækið.asing og skjá.

5.2 Geymsla

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. Bilanagreining

• Skjárinn er auður eða dimmur:
  • Ensure the calculator is in a well-lit area for solar power.
  • Check if the battery needs replacement. Refer to Section 3.2.
• Rangar útreikningar:
  • Ýttu á CA (Clear All) button to reset the calculator.
  • Verify that you are entering numbers and operations correctly.
• Lyklarnir svara ekki:
  • Clean the keys and surrounding areas to remove any debris.
  • If the issue persists, the calculator may require professional servicing.

7. Tæknilýsing

8. Myndir af vöru

9. Ábyrgð og stuðningur

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 webvefsíðu eða hafið samband við þjónustuver þeirra. Geymið kaupkvittunina sem sönnun fyrir kaupum ef þið viljið gera ábyrgðarkröfur.