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

1. Inleiding

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. Sleutel kenmerke

• 12-syfer LCD-skerm: 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.
• Dubbele kragbron: Operates on both solar power and a lithium-ion battery, ensuring functionality even in low light conditions.

3. Opstelling

3.1 Aanskakel

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 Battery installering/vervanging

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. Vind die batterykompartement aan die agterkant van die eenheid.
3. Maak die kompartementdeksel versigtig oop.
4. Remove the old battery and insert a new CR2032 lithium-ion battery, ensuring correct polarity (+/-).
5. Maak die batterykompartement se deksel stewig toe.

Note: Dispose of used batteries according to local regulations.

4. Bedryfsinstruksies

4.1 Basiese Rekenkundige Bewerkings

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

• Byvoeging (+): Voer die eerste nommer in, druk +, enter the second number, press =.
• Aftrekking (-): Voer die eerste nommer in, druk -, enter the second number, press =.
• Multiplication (×): Voer die eerste nommer in, druk ×, enter the second number, press =.
• Deling (÷): Voer die eerste nommer in, druk ÷, enter the second number, press =.

4.2 Spesiale Funksies

• Square Root (√): Enter a number, then press the √ key to calculate its square root.
• Percenttage (%): Used for percentage berekeninge. Byvoorbeeldample, to calculate 10% of 200: Enter 200, press ×, enter 10, press %.
• Groottotaal (GT): Accumulates the results of all calculations performed after the last GT clear. Press GT om die groottotaal te vertoon.
• Mark-up/Mark-down (MU): Used for profit margin calculations.
• Vee inskrywing (CE): Vee die laaste ingevoerde getal of bewerking uit sonder om vorige berekeninge te beïnvloed.
• Clear All (CA): Clears all entries and calculations, resetting the calculator.
• Memory Plus (M+): Voeg die vertoonde waarde by die geheue.
• Memory Minus (M-): Trek die vertoonde waarde van die geheue af.
• Recall Memory (RM): Displays the value currently stored in memory.
• Clear Memory (CM): Maak die geheue skoon.

4.3 Vertoon

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. Onderhoud

5.1 Skoonmaak

Om die sakrekenaar skoon te maak, gebruik 'n sagte, droë lap. Vir hardnekkige vuiligheid, liggiesampen the cloth with water or a mild, non-abrasive cleaner. Avoid using harsh chemicals, solvents, or abrasive materials, as these can damage the casing en vertoon.

5.2 Berging

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. Probleemoplossing

• Skerm is leeg of dof:
  • Ensure the calculator is in a well-lit area for solar power.
  • Check if the battery needs replacement. Refer to Section 3.2.
• Verkeerde berekeninge:
  • Druk die CA (Clear All) button to reset the calculator.
  • Verify that you are entering numbers and operations correctly.
• Sleutels reageer nie:
  • Clean the keys and surrounding areas to remove any debris.
  • If the issue persists, the calculator may require professional servicing.

7. Spesifikasies

8. Produkbeelde

9. Waarborg en Ondersteuning

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 webwebwerf of kontak hul kliëntediensafdeling. Bewaar u aankoopbewys as bewys van aankoop vir enige waarborgeise.