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

1. Rhagymadrodd

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. Nodweddion Allweddol

• Arddangosfa LCD 12-digid: 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.
• Ffynhonnell Pwer Deuol: Operates on both solar power and a lithium-ion battery, ensuring functionality even in low light conditions.

3. Gosod

3.1 Pweru Ymlaen

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 Gosod/Amnewid Batri

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. Lleolwch yr adran batri ar gefn yr uned.
3. Agorwch glawr y compartment yn ofalus.
4. Remove the old battery and insert a new CR2032 lithium-ion battery, ensuring correct polarity (+/-).
5. Caewch y clawr adran batri yn ddiogel.

Note: Dispose of used batteries according to local regulations.

4. Cyfarwyddiadau Gweithredu

4.1 Gweithrediadau Rhifyddeg Sylfaenol

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

• Ychwanegiad (+): Rhowch y rhif cyntaf, pwyswch +, nodwch yr ail rif, pwyswch =.
• Tynnu (-): Rhowch y rhif cyntaf, pwyswch -, nodwch yr ail rif, pwyswch =.
• Lluosi (×): Rhowch y rhif cyntaf, pwyswch ×, nodwch yr ail rif, pwyswch =.
• Rhaniad (÷): Rhowch y rhif cyntaf, pwyswch ÷, nodwch yr ail rif, pwyswch =.

4.2 Swyddogaethau Arbennig

• Gwreiddyn Sgwâr (√): Enter a number, then press the √ key to calculate its square root.
• Percentage (%): Wedi'i ddefnyddio ar gyfer canrantage cyfrifiadau. Am gynample, to calculate 10% of 200: Enter 200, press ×, nodwch 10, pwyswch %.
• Cyfanswm Mawr (GT): Accumulates the results of all calculations performed after the last GT clear. Press GT to display the grand total.
• Mark-up/Mark-down (MU): Used for profit margin calculations.
• Mynediad clir (CE): Clears the last entered number or operation without affecting previous calculations.
• Clear All (CA): Yn clirio pob cofnod a chyfrifiad, gan ailosod y gyfrifiannell.
• Cof a Mwy (M+): Yn ychwanegu'r gwerth a ddangosir at y cof.
• Cof Minws (M-): Yn tynnu'r gwerth a ddangosir o'r cof.
• Cof Adalw (RM): Yn dangos y gwerth sydd wedi'i storio yn y cof ar hyn o bryd.
• Clirio Cof (CM): Yn clirio'r cof.

4.3 Arddangos

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. cynnal

5.1 Glanhau

I lanhau'r gyfrifiannell, defnyddiwch frethyn meddal, sych. Ar gyfer baw ystyfnig, sychwch ychydig.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 ac arddangosfa.

5.2 Storio

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. Datrys Problemau

• Mae'r arddangosfa'n wag neu'n dywyll:
  • Gwnewch yn siŵr bod y gyfrifiannell mewn ardal sydd wedi'i goleuo'n dda ar gyfer pŵer solar.
  • Check if the battery needs replacement. Refer to Section 3.2.
• Cyfrifiadau anghywir:
  • Gwasgwch y CA (Clear All) button to reset the calculator.
  • Verify that you are entering numbers and operations correctly.
• Mae'r allweddi'n anymatebol:
  • Clean the keys and surrounding areas to remove any debris.
  • If the issue persists, the calculator may require professional servicing.

7. manylebau

8. Delweddau Cynnyrch

9. Gwarant a Chefnogaeth

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 websafle neu cysylltwch â'u hadran gwasanaeth cwsmeriaid. Cadwch eich derbynneb prynu fel prawf o brynu ar gyfer unrhyw hawliadau gwarant.