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The Aurora DT661 is a premium desk calculator designed for executives and professionals who need reliable and efficient financial calculations. Its large display, durable construction, and user-friendly features make it ideal for everyday use. While it excels in its core functions, note that it is designed primarily for calculations and does not offer advanced graphing or statistical capabilities.
| Model Part Number | NDT661 |
|---|---|
| Brand | Aurora |
Consult the user manual for instructions on how to access and replace the battery. Typically, there is a compartment on the back of the calculator.
The Aurora DT661 comes with a standard manufacturer's warranty. Please refer to the product packaging or documentation for warranty details.
Press the tax key, and then enter the amount. The calculator will automatically calculate the VAT or tax based on the pre-programmed rate.
Use the programmable currency conversion keys to set the exchange rates and perform the conversion.
The calculator has a 3-key memory function that allows you to store and recall numbers for later use. This is useful for storing totals or key figures.
Use a soft, damp cloth to clean the calculator. Avoid using harsh chemicals or excessive water.
The calculator uses dual power; solar with battery backup, ensuring it can operate in various lighting conditions.
Check the battery and ensure it is properly installed. Ensure sufficient lighting for solar power. If the issue persists, replace the battery.
Check the viewing angle. Ensure sufficient lighting. Replace the battery if the issue persists.
Ensure that the keys are not stuck. If the problem continues, clean the calculator with a soft cloth.
Double-check the input numbers and the selected functions.
