OSALO OS-20TV Desktop Calculator Instruction Manual

1. Rhagymadrodd

Thank you for choosing the OSALO OS-20TV Desktop Calculator. This manual provides detailed instructions for the proper setup, operation, and maintenance of your calculator. Please read this manual thoroughly before use to ensure optimal performance and longevity of your device.

The OSALO OS-20TV calculator on a desk, ready for use.

Nodweddion Allweddol:

• Swyddogaethau Proffesiynol: Tax calculation mode, rounding adjustments (round up/cut off), and decimal place settings.
• Efficient Aggregation: Grand Total (GT) function and Memory Continuous Calculation (MRC) for streamlined transaction aggregation.
• Cywiro Gwall: Undo function for immediate correction of input errors.
• Dyluniad ergonomig: High-speed response, zero-travel compact keys, and tactile navigation through concave/convex buttons for a smooth input experience, supporting blind touch.
• Arddangosfa glir: 12-digit display with operation symbol icons for excellent visibility of complex calculations.
• Pwer deuol: Solar and battery dual power source ensures uninterrupted operation.
• Gwydn a Chludadwy: Impact-resistant ABS resin construction, non-slip rubber feet, and an ultra-lightweight 150g design.
• Arbed Ynni: Automatic power-off after 8 minutes of inactivity to extend battery life.

2. Cynnyrch Drosview

Familiarize yourself with the components of your OSALO OS-20TV calculator.

Detailed diagram of the OSALO OS-20TV calculator's components and key functions.

Cydrannau Allweddol:

• Panel Solar: Provides power in well-lit environments.
• Arddangosfa LCD fawr: 12-digit display for clear numerical output and operation symbols.
• Rounding Mode Switch (5/4): Adjusts rounding behavior.
• Decimal Place Setting Switch (F, 4, 2, 0, ADD2): Controls the number of decimal places.
• TAX+ / TAX- Keys: For tax calculations.
• RATE Key: To set the tax rate.
• GT (Grand Total) Key: Accumulates results of multiple calculations.
• MRC (Memory Recall/Clear) Key: Recalls or clears memory content.
• M+ / M- Keys: Adds to or subtracts from memory.
• C (Clear) Key: Yn clirio'r cofnod olaf.
• AC (All Clear) Key: Clears all entries and memory (except tax rate).
• Arrow Key (Back/Undo): Corrects the last digit entered.
• Traed Rwber Di-lithro: Located on the base for stability during use.

The large 12-digit LCD display and solar panel, illustrating the dual power system.

3. Gosod

Power Source: Solar and Battery

The OSALO OS-20TV calculator operates on a dual power system, utilizing both solar energy and a built-in battery. This ensures reliable operation in various lighting conditions.

• Pŵer Solar: In well-lit environments, the calculator will primarily use solar power. Ensure the solar panel is exposed to light for optimal performance.
• Pŵer Batri: In low-light conditions or when solar power is insufficient, the calculator automatically switches to battery power. The battery is pre-installed.

Pŵer Cychwynnol Ymlaen

I droi'r gyfrifiannell ymlaen, pwyswch y AC (All Clear) key. The display will show '0'. If the display remains blank, ensure there is sufficient light for the solar panel or that the battery is functional.

Pŵer Awtomatig i ffwrdd

To conserve battery life, the calculator will automatically power off after approximately 8 minutes of inactivity. Press any key to turn it back on.

4. Cyfarwyddiadau Gweithredu

Gweithrediadau Sylfaenol

• Power On/All Clear (AC): Gwasgwch AC to turn on the calculator and clear all previous calculations and memory (except the set tax rate).
• Mynediad Clir (C): Gwasgwch C to clear the last entered number or calculation.
• Cofnod Rhif: Use the number keys (0-9) to input values. The 00 key allows for quick entry of two zeros.
• Gweithrediadau Rhifyddeg: Defnydd +, -, ×, ÷ for addition, subtraction, multiplication, and division. Press = i arddangos y canlyniad.
• Pwynt degol: Defnyddiwch y . key for decimal numbers.
• Newid Arwydd (+/-): Gwasgwch +/- i newid arwydd y rhif a ddangosir.
• Percentage (%): Defnyddiwch y % key for percentage cyfrifiadau.
• Input Correction (Arrow Key): Gwasgwch y ← (arrow) key to delete the last digit entered.

Swyddogaethau Uwch

Examples of tax calculation using the dedicated TAX+ and TAX- keys.

• Cyfrifiad Treth (TRETH+, TRETH-):
  1. Setting the Tax Rate: Gwasgwch AC. Enter the tax rate (e.g., 8 for 8%). Press CYFRADD. The tax rate is now set.
  2. Ychwanegu Treth: Enter the amount. Press TRETH+. The display shows the amount including tax.
  3. Tynnu Treth: Enter the amount including tax. Press TRETH-. The display shows the original amount before tax.
  4. Calculating Tax Amount: After adding or subtracting tax, press TRETH- again to display the tax amount.
• Swyddogaethau Cof (M+, M-, MRC):
  1. M+ (Cof a Mwy): Yn ychwanegu'r gwerth a ddangosir at y cof.
  2. M- (Llai Cof): Yn tynnu'r gwerth a ddangosir o'r cof.
  3. MRC (Cof Cof / Clirio): Press once to recall the memory content. Press twice to clear the memory content.
• Swyddogaeth Cyfanswm Terfynol (GT):
  Mae'r GT key accumulates the results of all calculations performed using the = cywair. Gwasgwch GT to display the grand total. Press AC to clear the grand total.
• Rounding and Decimal Place Settings:
  Use the slide switches located above the number keys to adjust rounding and decimal places.
  

  Rounding (5/4) and Decimal Place (F, 4, 2, 0, ADD2) setting switches.

  • Rounding Switch (5/4):
        ↑ (Round Up): Rounds up the last digit.
        5/4 (Round Half Up): Rounds up if the fractional part is 0.5 or greater, otherwise rounds down.
  • Decimal Place Switch (F, 4, 2, 0, ADD2):
        F (Floating Decimal): Displays all digits without rounding.
        4, 2, 0: Sets the number of decimal places to 4, 2, or 0 respectively.
        ADD2 (Add Mode): Automatically adds two decimal places to all results, useful for currency calculations.

Dyluniad Bysellfwrdd Ergonomig

The OSALO OS-20TV features an ergonomic keypad designed for comfort and speed, supporting blind touch operation.

The ergonomic key layout with tactile concave/convex buttons for efficient and fast input.

• Tactile Keys: Concave and convex button shapes provide tactile feedback, allowing for accurate key presses without looking.
• Zero-Travel Design: Compact keys with minimal travel distance enable high-speed response and rapid input.
• Optimized Layout: Number keys are centrally arranged to minimize finger movement, enhancing efficiency for professional users.

5. cynnal

Proper care and maintenance will ensure the long-term performance of your calculator.

• Glanhau: Use a soft, dry cloth to clean the calculator's surface and display. For stubborn dirt, slightly dampen the cloth with water or a mild, non-abrasive cleaner. Avoid using strong solvents or abrasive materials.
• Osgoi Amodau Eithafol: Do not expose the calculator to direct sunlight for extended periods, high humidity, extreme temperatures, or strong vibrations.
• Storio: When not in use for a long time, store the calculator in a cool, dry place.
• Batri: The calculator uses a button cell battery (type not specified in product data, typically LR44 or CR2032). If the display becomes dim or unresponsive in low light, the battery may need replacement. Consult a professional or refer to the manufacturer's website for specific battery replacement instructions if needed.

6. Datrys Problemau

If you encounter any issues with your OSALO OS-20TV calculator, refer to the following common problems and solutions:

7. manylebau

Detailed technical specifications for the OSALO OS-20TV calculator.

Dimensions of the OSALO OS-20TV calculator.

8. Gwarant a Chefnogaeth

Gwybodaeth Gwarant

This OSALO OS-20TV calculator is covered by a standard manufacturer's warranty against defects in materials and workmanship. The warranty period typically begins from the date of purchase. Please retain your proof of purchase for warranty claims. The warranty does not cover damage caused by misuse, accidents, unauthorized repairs, or normal wear and tear.

Cefnogaeth i Gwsmeriaid

For technical assistance, troubleshooting not covered in this manual, or warranty inquiries, please contact OSALO customer support through the retailer where you purchased the product or visit the official OSALO website for contact details. Please have your model number (OS-20TV) and purchase information ready when contacting support.