Introduction
This manual provides detailed instructions for the operation and maintenance of your deli Desktop Financial Calculator, Model 2136. Please read this manual thoroughly to ensure proper use and to maximize the lifespan of your device. This calculator is designed for efficient and accurate calculations in various settings, including business, home, and office environments.
Key Features
- Dual Power: Operates on both solar energy and a single AAA battery (included), ensuring continuous functionality.
- 12-Digit LCD Display: A large, clear display with a 30-degree elevation angle for easy readability and comfortable viewing.
- Large Responsive Buttons: Designed with a computer keyboard layout and a blind-spot design for faster, more accurate keystrokes.
- Comprehensive Functions: Includes standard arithmetic operations (add, subtract, multiply, divide), backspace, grand total (GT), clear entry (CE), percentage (%), memory functions (M+/M-/MRC), and mark-up (MU).
- Auto Power-Off: Conserves energy by automatically shutting down after a period of inactivity.
Setup
Power Source
The deli Desktop Financial Calculator is equipped with dual power capabilities, utilizing both solar energy and a AAA battery. For optimal performance, ensure the calculator is exposed to sufficient light for solar power or has a charged AAA battery installed.

This image illustrates the calculator's dual power system, highlighting the solar panel and the AAA battery compartment. The calculator can operate using either source.
Battery Installation
- Locate the battery compartment cover on the back of the calculator.
- Slide the cover open.
- Insert one AAA battery, ensuring the correct polarity (+/-) as indicated inside the compartment.
- Close the battery compartment cover securely.
Operating Instructions
Familiarize yourself with the calculator's layout and functions for efficient use.

This diagram labels the various buttons and their corresponding functions on the deli Desktop Financial Calculator, including the solar panel, 12-digit display, and function keys.
Basic Operations
- Power On/Clear All (ON/AC): Press this button to turn on the calculator or to clear all current entries and calculations.
- Clear Entry (CE): Press this button to clear the last entered number without affecting previous calculations.
- Addition (+), Subtraction (-), Multiplication (×), Division (÷): Use these keys for standard arithmetic operations.
- Equals (=): Press to display the result of a calculation.
- Backspace (→): Deletes the last digit entered.
- Grand Total (GT): Displays the grand total of all calculations performed since the last GT or AC press.
- Percentage (%): Used for percentage calculations.
Memory Functions
- Memory Plus (M+): Adds the displayed number to the memory.
- Memory Minus (M-): Subtracts the displayed number from the memory.
- Memory Recall/Clear (MRC): Press once to recall the memory value. Press twice to clear the memory.
Mark-Up (MU) Function
The MU key is used for calculating selling prices based on cost and desired profit margin.
- Enter the cost price.
- Press the multiplication (×) key.
- Enter the desired profit margin percentage.
- Press the MU key. The display will show the selling price.
Demonstration Video
This video demonstrates the basic operation and responsiveness of the deli Desktop Calculator, including key presses and display updates.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the calculator's surface. For stubborn dirt, slightly dampen the cloth with water and mild soap, then wipe dry immediately. Avoid abrasive cleaners or solvents.
- Storage: Store the calculator in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Replacement: If the display becomes dim or unresponsive, replace the AAA battery.
- Avoid Drops: Protect the calculator from impacts and drops to prevent damage to the internal components and display.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Display is blank or dim. | Insufficient light for solar power, or low/dead battery. | Move the calculator to a brighter area or replace the AAA battery. |
| Buttons are unresponsive. | Calculator may be frozen or battery is low. | Press the ON/AC button to reset. If problem persists, replace the battery. |
| Incorrect calculation results. | Incorrect input or function usage. | Review your input and ensure correct function keys are being used. Press ON/AC to clear and restart. |
Specifications
| Feature | Detail |
|---|---|
| Brand | deli |
| Model Number | 2136 |
| Display Type | 12-Digit LCD |
| Power Source | Solar and 1 AAA Battery (included) |
| Color | White |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Item Dimensions (L x W) | 6.48"L x 6.33"W |
| Elevation Angle | 30 degrees |
Warranty and Support
This deli Desktop Financial Calculator (Model 2136) comes with a warranty for free returns and exchanges within 1 year from the date of purchase.
For further assistance or support, please visit the official deli store or contact customer service through your retailer.
Official deli Store: deli Office Supplies







