1. Introdución
Thank you for choosing the Deli WM01120 12-Digit Dual Power Basic Calculator. This manual provides essential information for the proper setup, operation, and maintenance of your calculator. Please read it thoroughly to ensure optimal performance and longevity of your device.
2. Produto rematadoview
The Deli WM01120 is a versatile 12-digit basic calculator designed for both office and home use. It features a large LCD display, dual power options (solar and battery), and advanced functions like Grand Total (GT) and a 120-step check and correct feature.

Imaxe 2.1: Fronte view of the Deli WM01120 calculator, showcasing its 12-digit display and key layout.

Imaxe 2.2: Detallada view of the calculator, pointing out the high-quality LCD display, integrated chip for performance, rubber keyboard design, and dual power capability.
3. Configuración
3.1 Fonte de enerxía
The Deli WM01120 calculator operates on a dual power system: solar energy and battery power. This ensures reliable operation in various lighting conditions.
- Enerxía solar: The calculator utilizes solar energy for power when sufficient light is available.
- Potencia da batería: For low-light conditions or when solar power is insufficient, the calculator automatically switches to battery power. It requires two LR44 batteries (included).

Image 3.1: Illustration of the calculator's dual power options, highlighting the solar panel and battery compartment.
3.2 Instalación/substitución da batería
Para instalar ou substituír as pilas:
- Asegúrate de que a calculadora estea apagada.
- Localiza o compartimento das pilas na parte traseira da calculadora.
- Abra a tapa da batería.
- Insert two LR44 batteries, ensuring correct polarity (+/-).
- Pecha a tapa da batería de forma segura.
4. Instrucións de funcionamento
4.1 Operacións básicas
- ON/C·CE: Press to turn on the calculator or clear the current entry. Press twice to clear all entries and memory.
- AC: All Clear. Clears all entries and memory.
- Number Keys (0-9, .): Input numerical values.
- Arithmetic Operators (+, -, ×, ÷): Perform addition, subtraction, multiplication, and division.
- =: Displays the result of a calculation.
- %: Porcenttage key.
4.2 Grand Total (GT) Function
The GT (Grand Total) key accumulates the results of all previous calculations. After performing several calculations, pressing GT will display the sum of all those results.

Image 4.1: A hand pressing the GT key on the calculator, demonstrating its use for summing multiple calculation results.
4.3 120-Step Check and Correct Function
Esta función permítelle volverview and correct up to 120 previous calculation steps. This is useful for verifying long calculations and rectifying errors without re-entering the entire sequence.
- VERIFICACIÓN: Press to enter check mode and review previous entries. Repeated presses cycle through entries.
- CORRECT (00→0): While in check mode, use this key to correct an incorrect entry.
- AUTO REPLAY: Automatically replays the entire calculation sequence.

Image 4.2: The calculator display showing the 'CHECK' function in action, allowing users to review past entries.
4.4 Funcións de memoria
- M+: Engade o valor mostrado á memoria.
- M-: Resta da memoria o valor mostrado.
- MRC: Recalls the memory content. Pressing it twice clears the memory.

Image 4.3: Close-up of the calculator's memory function keys: MRC, M-, and M+.
4.5 Tax Functions
- CONXUNTO: Used to set the tax rate.
- TAX+: Adds tax to the displayed value.
- TAX-: Subtracts tax from the displayed value.

Image 4.4: Close-up of the calculator's tax function keys: SET, TAX-, and TAX+.
4.6 Decimal Point and Rounding Selectors
On the top right side of the calculator, there are slide switches to control the decimal point and rounding settings:
- Decimal Point Selector (F, 5/4, 0, 2, 3, 4): Controls the number of decimal places displayed. 'F' is for floating decimal.
- Rounding Selector (Cut, Up, 5/4): Determines how results are rounded. 'Cut' truncates, 'Up' rounds up, '5/4' rounds to the nearest value.

Image 4.5: Close-up of the slide switches for decimal point control and rounding settings.
4.7 Apagado automático
The calculator features an auto power-off function to conserve energy. If left idle for a certain period, it will automatically turn off. Press the ON/C·CE key to turn it back on.

Imaxe 4.6: Lateral view of the calculator, illustrating its compact design and the automatic power-off feature for energy saving.
4.8 Vídeo operativo
Video 4.1: This video demonstrates the basic operation and key features of the Deli WM01120 calculator, including inputting numbers and performing calculations.
5. Mantemento
- Limpeza: Use a soft, dry cloth to clean the calculator's surface. Do not use liquid cleaners or abrasive materials.
- Almacenamento: Garde a calculadora nun lugar fresco e seco, lonxe da luz solar directa e de temperaturas extremas.
- Coidado da batería: Se a calculadora non se utiliza durante un período prolongado, retire as pilas para evitar fugas.
6 Solución de problemas
| Problema | Causa posible | Solución |
|---|---|---|
| A pantalla está en branco ou escura. | Insufficient light for solar power; low battery. | Move to a brighter area; replace batteries. |
| Resultados de cálculo incorrectos. | Incorrect entry; incorrect decimal/rounding settings. | Use the Check and Correct function to review entries; verify decimal and rounding switch positions. |
| As teclas non responden. | Calculator frozen; physical obstruction. | Press AC to reset; check for debris under keys. |
7. Especificacións
| Característica | Detalle |
|---|---|
| Marca | charcutería |
| Número de modelo | WM01120 (also referred to as EM01120 in some specifications) |
| Cor | Negro |
| Tipo de calculadora | Función estándar |
| Fonte de enerxía | Battery Powered (2 x LR44 included), Solar Power |
| Tamaño da pantalla | 20 Centimetres (diagonal) |
| Tipo de visualización | LCD |
| Material do recinto | Plástico |
| Dimensións do artigo (L x W) | 30L x 140W Millimeters (approx. 139.1 x 130.7 x 30mm) |
| Peso do elemento | 140 gramos |
| Número de díxitos | 12 |
8. Garantía e soporte
The Deli WM01120 calculator comes with a 3 ano de garantía from the date of purchase, covering manufacturing defects. For warranty claims or technical support, please contact your retailer or the manufacturer directly. Please retain your proof of purchase for warranty validation.