Manual de instrucións da calculadora empresarial Aurora DT661

1. Introdución

Thank you for choosing the Aurora DT661 Business Calculator. This manual provides detailed instructions on how to set up, operate, and maintain your calculator to ensure optimal performance. The DT661 is designed for business and financial calculations, featuring a large 12-digit display, durable metal casing, and specialized functions like Cost-Sell-Margin and Tax calculations.

Figure 1: Aurora DT661 Business Calculator Overview

2. Configuración

2.1 Fonte de enerxía

The Aurora DT661 calculator operates using both solar power and a single product-specific alkaline battery (included). For optimal performance, ensure the solar panel is exposed to sufficient light. The battery provides power in low-light conditions or when solar power is insufficient.

2.2 Uso inicial

Upon first use, or after extended storage, the display may be blank. Place the calculator in a well-lit area to activate the solar power, or press the 'AC' button to clear any residual memory and ensure the display is active.

3. Instrucións de funcionamento

3.1 Operacións aritméticas básicas

Perform standard calculations using the number keys (0-9, 00, .), and operation keys (+, -, X, ÷, =).

• Adición (+): Enter first number, press '+', enter second number, press '='.
• Resta (-): Enter first number, press '-', enter second number, press '='.
• Multiplicación (X): Enter first number, press 'X', enter second number, press '='.
• División (÷): Enter first number, press '÷', enter second number, press '='.

3.2 Funcións limpas

• AC (todo claro): Borra todas as entradas e a memoria, restablecendo a calculadora ao seu estado inicial.
• C/CE (Clear Entry/Clear): Clears the last entered number. Pressing it twice typically clears the entire calculation without affecting memory.

3.3 Funcións especiais

• Cost-Sell-Margin (CSM): This function allows you to calculate any one of Cost, Selling Price, or Margin when the other two values are known.
• Tax Function (+TAX, -TAX): Ideal for VAT calculations.
• Programmable Currency Conversion: Allows setting a conversion rate for quick currency exchanges. Refer to the detailed instructions in the product packaging for setting specific rates.
• Memory Functions (M+, M-, MRC):
  • M+: Engade o valor mostrado á memoria.
  • M-: Subtracts the displayed value from memory.
  • MRC (Recall/Borrar memoria): Prema unha vez para recuperar o valor da memoria. Prema dúas veces para borrar a memoria.
• Porcenttage (%): Calcula o porcentaxetages.
• Raíz cadrada (√): Calcula a raíz cadrada do número mostrado.
• +/- (Cambio de signo): Cambia o signo do número mostrado (de positivo a negativo ou de negativo a positivo).

4. Mantemento

4.1 Limpeza

To clean the calculator, use a soft, dry cloth. For stubborn marks, a slightly damp cloth with mild soap can be used, but ensure no liquid enters the calculator. Do not use abrasive cleaners or solvents.

4.2 Substitución da batería

While the calculator is primarily solar-powered, the included alkaline battery provides backup. If the display becomes dim or unresponsive in low light, the battery may need replacement. Refer to the battery compartment on the back of the unit for specific battery type and replacement instructions.

4.3 Almacenamento

Garde a calculadora nun lugar fresco e seco, lonxe da luz solar directa e de temperaturas extremas, cando non a utilice durante períodos prolongados.

5 Solución de problemas

• A pantalla está en branco ou escura:
  • Ensure the solar panel is exposed to sufficient light.
  • The battery may be low or depleted. Replace the battery if necessary.
  • Press the 'AC' button to reset the display.
• Cálculos incorrectos:
  • Ensure correct input sequence.
  • Clear previous calculations using 'AC' or 'C/CE'.
  • Check if memory (M) is active and clear it if not intended.
• As teclas non responden:
  • Ensure the calculator is clean and free of debris around the keys.
  • Press 'AC' to reset the unit.

6. Especificacións

7. Garantía e soporte

For information regarding warranty coverage and customer support, please refer to the warranty card included with your product packaging or visit the official Aurora websitio. Garde o recibo da compra como proba de compra para calquera reclamación de garantía.