Esperanza ECL102 Basic Desktop Calculator User Manual

Instruccions importants de seguretat

Please read these instructions carefully before using the calculator. Keep this manual for future reference.

• Do not expose the calculator to direct sunlight for extended periods or to extreme temperatures.
• Eviteu deixar caure la calculadora o sotmetre-la a impactes forts.
• Do not attempt to disassemble or modify the calculator. This will void the warranty.
• Keep the calculator away from water and other liquids.
• Utilitzeu un drap suau i sec per netejar. No utilitzeu netejadors abrasius ni dissolvents.

Image: Esperanza ECL102 Basic Desktop Calculator. This image shows the calculator from an angled top-down view, displaying its 12-digit screen, solar panel, and key layout.

Configuració

Desembalatge

Carefully remove the calculator from its packaging. Ensure all components are present and undamaged. Retain the packaging for future storage or transport.

Font d'alimentació

The Esperanza ECL102 calculator operates primarily on solar power. For optimal performance, ensure the solar panel (located above the display) is exposed to sufficient light. The calculator also requires one battery for backup power, typically a button cell battery (e.g., LR44 or similar, not specified in detail in product data). If the display is dim or unresponsive in low light, the battery may need replacement.

Configuració inicial

Upon first use, or after battery replacement, the calculator should power on automatically when exposed to light. If not, press the ON/C/CE button to turn it on. The display will show "0".

Instruccions de funcionament

Operacions bàsiques

• Suma (+): Introduïu el primer número, premeu +, introdueix el segon número i prem =.
• Resta (-): Introduïu el primer número, premeu -, introdueix el segon número i prem =.
• Multiplicació (x): Introduïu el primer número, premeu x, introdueix el segon número i prem =.
• Divisió (÷): Introduïu el primer número, premeu ÷, introdueix el segon número i prem =.
• Esborrar entrada (CE): Esborra l'últim número introduït.
• Esborra-ho tot (C): Esborra totes les entrades i reinicia la calculadora.
• On/Clear (ON/C/CE): Turns the calculator on, or clears the current entry/all entries depending on context.

Funcions de memòria

• Memory Clear (MC): Clears the memory content.
• Memory Recall (MR): Displays the current memory content.
• Memòria Plus (M+): Afegeix el valor mostrat a la memòria.
• Memòria Menys (M-): Resta el valor mostrat de la memòria.

Percenttage and Square Root

• Percenttage (%): S'utilitza per a percentatgestage càlculs. Per exampés a dir, per calcular el 10% de 200, introduïu 200 x 10 %.
• Arrel quadrada (√): Introduïu un número i, a continuació, premeu √ per calcular la seva arrel quadrada.

Manteniment

Neteja

Per netejar la calculadora, netegeu suaument la superfície amb un drap suau i sec. Per a la brutícia persistent, netegeu lleugeramentampen the cloth with water, then wipe dry immediately. Do not use chemical cleaners, solvents, or abrasive materials.

Canvi de bateria

If the display becomes dim or the calculator functions erratically even in good light, the backup battery may need replacement. The battery compartment is typically located on the back of the calculator. Use a small screwdriver to open it, replace the old battery with a new one of the same type (e.g., LR44), ensuring correct polarity, and then securely close the compartment. Dispose of old batteries responsibly according to local regulations.

Resolució de problemes

Problemes comuns

• La calculadora no s'encén:
  • Ensure the solar panel is exposed to sufficient light.
  • Premeu el botó ON/C/CE botó.
  • Check and replace the backup battery if necessary.
• Resultats de càlcul incorrectes:
  • Ensure you are pressing the correct operation keys.
  • Clear the calculator by pressing C or ON/C/CE and re-enter the calculation.
  • Avoid pressing multiple keys simultaneously.
• La pantalla és tènue o parpelleja:
  • Move the calculator to a brighter area to utilize solar power.
  • Substituïu la bateria de reserva.

Especificacions

The following are the technical specifications for the Esperanza ECL102 Basic Desktop Calculator:

Image: Esperanza ECL102 Calculator showing approximate dimensions. The image indicates a width of 10cm and a length of 13.5cm.

Garantia i Suport

Informació de la garantia

This product is covered by a standard manufacturer's warranty. Please refer to the warranty card included with your purchase or contact the retailer for specific warranty terms and conditions. Keep your proof of purchase for warranty claims.

Atenció al client

For technical assistance, troubleshooting, or inquiries regarding your Esperanza ECL102 calculator, please contact Esperanza customer support or your local retailer. Contact information can typically be found on the manufacturer's weblloc o embalatge del producte.