1. Introduction
Thank you for choosing the deli M124 Basic Desktop Calculator. This manual provides essential information for the proper setup, operation, and maintenance of your calculator. Designed for ease of use, the deli M124 features a 12-digit large LCD display and comfortable, rounded buttons, making it suitable for various environments including offices, schools, and homes.
Image 1: Front view of the deli M124 Basic Desktop Calculator.
2. Setup
2.1 Battery Installation
The deli M124 calculator requires one AAA battery for operation. A battery is typically included with your purchase.
- Locate the battery compartment cover on the back of the calculator.
- Gently slide or lift the cover to open the compartment.
- Insert one AAA battery, ensuring the positive (+) and negative (-) terminals align correctly with the markings inside the compartment.
- Replace the battery compartment cover securely.
Image 2: Illustration of AAA battery insertion into the calculator.
To turn on the calculator, press the AC button. To turn it off, press the OFF button. The calculator will not automatically turn off to conserve power.
3. Operating Instructions
3.1 Button Functions Overview
Familiarize yourself with the calculator's key functions:
Image 3: Labeled diagram of deli M124 Calculator buttons.
- ON/CE: Turns the calculator on or clears the last entry.
- AC: All Clear. Clears all entries and calculations, resetting the calculator.
- OFF: Turns the calculator off.
- MU: Mark-up and Mark-down function.
- GT: Grand Total. Displays the sum of all results from previous calculations.
- MRC: Memory Recall/Clear. Press once to recall memory, twice to clear memory.
- M+: Memory Plus. Adds the displayed value to the memory.
- M-: Memory Minus. Subtracts the displayed value from the memory.
- →: Backspace key. Deletes the last digit entered.
- %: Percentage function.
- √: Square Root function.
- 0-9, .: Number keys and decimal point.
- +, -, ×, ÷, =: Basic arithmetic operators and equals key.
3.2 Basic Calculations
To perform basic arithmetic operations:
- Enter the first number.
- Press the desired operation key (+, -, ×, ÷).
- Enter the second number.
- Press the = key to display the result.
3.3 Memory Functions
The memory functions allow you to store and recall numbers for complex calculations:
- To add a number to memory: Enter the number, then press M+.
- To subtract a number from memory: Enter the number, then press M-.
- To recall the number stored in memory: Press MRC once.
- To clear the memory: Press MRC twice.
4. Features
4.1 Display and Ergonomics
- 12-Digit Large LCD Display: Provides clear and easy-to-read numbers.
- 15° Angled Screen: The display is designed with a 15-degree tilt for optimal viewing comfort, reducing eye strain during prolonged use.
Image 4: The 15-degree ergonomic design for improved visibility.
4.2 Design and Portability
- Anti-Slip Base: Equipped with anti-slip pads on the bottom to ensure stability on various surfaces, preventing accidental movement during use.
- Comfortable Buttons: Features smooth, circular ABS plastic buttons that provide a good tactile response and operate silently.
- Compact and Lightweight: Measuring 6.1 x 4.1 inches and weighing 5 ounces (excluding battery), this calculator is highly portable and easy to carry.
Image 5: Features such as easy-to-read display, anti-skid base, and convenient buttons.
Image 6: Detail of the lower anti-skid pads.
Image 7: The calculator's compact size for easy portability.
5. Application Scenarios
The deli M124 Basic Desktop Calculator is versatile and suitable for a wide range of users and environments:
- Office Use: Ideal for daily calculations, budgeting, and data entry.
- Business: Useful for financial workers, sales professionals, and inventory management.
- School: Perfect for students and teachers for math classes, homework, and administrative tasks.
- Home Use: Convenient for personal finance, bill paying, and general household calculations.
Image 8: The calculator in various usage scenarios.
6. Maintenance
6.1 Cleaning
To maintain the calculator's appearance and functionality:
- Wipe the calculator with a soft, dry cloth.
- For stubborn dirt, slightly dampen the cloth with water or a mild cleaning solution, then wipe dry immediately.
- Avoid using abrasive cleaners, solvents, or harsh chemicals, as these can damage the display or casing.
6.2 Battery Replacement
When the display becomes dim or the calculator functions erratically, it is time to replace the AAA battery. Follow the battery installation steps outlined in Section 2.1.
7. Troubleshooting
- Blank Display: If the display is blank, ensure the calculator is turned on by pressing AC. Check if the battery is correctly installed and has sufficient power. Replace the battery if necessary.
- Incorrect Calculations: Press AC to clear any previous entries or memory contents that might be affecting current calculations. Ensure correct input of numbers and operations.
- Unresponsive Buttons: If buttons are unresponsive, try pressing them firmly. If the issue persists, replace the battery. Avoid operating the calculator in extremely dusty or humid environments.
8. Specifications
| Feature | Specification |
|---|---|
| Brand | deli |
| Model Number | 6921734944542 (M124) |
| Product Dimensions | 3.9 x 1.9 x 0.1 inches (Calculator body) |
| Item Weight | 5 ounces |
| Display | 12-Digit Large LCD |
| Screen Size | 3 Inches (Visible diagonal) |
| Power Source | 1 x AAA Battery (required) |
| Calculator Type | Standard Basic Calculator |
| Color | Green |
9. Warranty and Support
9.1 Warranty Information
The deli M124 Basic Desktop Calculator comes with a 5-year warranty from the date of purchase. This warranty covers manufacturing defects and ensures the product meets its specified performance standards under normal use. Please retain your proof of purchase for warranty claims.
9.2 Customer Support
For any questions, technical assistance, or warranty claims, please contact deli customer support through the retailer where the product was purchased or visit the official deli website for contact information.
