Introdução
This manual provides comprehensive instructions for the MAUL M112 calculator. It covers setup, basic operations, advanced functions, maintenance, and troubleshooting to ensure optimal performance and longevity of your device. Please read this manual thoroughly before using the calculator.
Produto acimaview

Imagem 1: Frente view of the MAUL M112 calculator, showcasing its 12-digit display and key layout. The calculator features a silver front panel and black keys with colored function buttons.
The MAUL M112 is a compact, 12-digit display calculator designed for office, home, and school use. It features both solar and battery power for reliable operation in various lighting conditions. Key functions include percentage and tax calculations, memory functions, and an automatic shutdown feature to conserve energy.

Imagem 2: The MAUL M112 calculator held in a hand, illustrating its compact size (approximately 11.9 cm x 7.0 cm x 1.0 cm). This image highlights its portability and ergonomic design.
Configurar
Fonte de energia
The MAUL M112 calculator operates on a dual power system: solar and battery. This ensures continuous functionality even in low-light environments.
- Energia solar: The calculator primarily uses solar energy when sufficient light is available. Ensure the solar panel, located above the display, is exposed to light for optimal performance.
- Potência da bateria: For use in dark conditions or when solar power is insufficient, the calculator automatically switches to battery power. One LR1130 battery is included with the device.
Uso inicial
Upon first use, the calculator should be ready for operation. If the display does not activate, ensure it is exposed to light or check the battery compartment.

Imagem 3: Traseira view of the MAUL M112 calculator, displaying the battery compartment cover. This is where the LR1130 battery is housed and can be accessed for replacement.
Instruções de operação
Operações básicas
- Power On/Clear: Imprensa ON C·CE to turn on the calculator or clear the current entry.
- All Clear: Imprensa AC to clear all calculations and memory.
- Entrada de número: Use the number keys (0-9) and the decimal point (.) to enter values.
- Operaçoes aritimeticas: Usar + (addition), - (subtraction), x (multiplication), and ÷ (division) for calculations.
- É igual a: Imprensa = Exibir o resultado de um cálculo.
- Double Zero: O 00 button allows for quick entry of two zeros.
- Delete Last Digit: Pressione o → (backspace) button to delete the last entered digit.
Funções de memória
The calculator includes a 3-button memory function:
- M+: Adds the displayed value to the memory.
- M-: Subtracts the displayed value from the memory.
- MRC: Recalls the memory content (first press) or clears the memory (second press).
Funções especiais
- % (porcentagemtage): Calcula porcentagemtage.
- Example (Add Percentage): Enter value, press +, enter percentage, pressione %.
- Example (Discount): Enter value, press -, enter percentage, pressione %.
- IMPOSTO+ / IMPOSTO- (Cálculo de Impostos): These buttons are used for calculations involving tax rates.
- Setting Tax Rate: Imprensa DEFINIR, then enter the tax rate (e.g., 5 for 5%), then press IMPOSTO+. The tax rate is now stored.
- Add Tax: Enter original price, press IMPOSTO+.
- Subtract Tax: Enter price including tax, press IMPOSTO-.

Imagem 4: Um detalhado view of the MAUL M112 calculator's 12-digit LCD display and the function keys, including SET, TAX-, TAX+, %, MRC, M-, M+, and the arithmetic operators. This image highlights the clear labeling and distinct coloring of important keys.
Manutenção
Limpeza
Para manter a aparência e a funcionalidade da calculadora:
- Limpe a calculadora com um pano macio e seco.
- Para sujeira persistente, levementeampUmedeça o pano com água. Evite usar produtos químicos agressivos ou abrasivos.
- Ensure no liquid enters the calculator's internal components.
Substituição da bateria
When the display becomes dim or unresponsive in low light, the LR1130 battery may need replacement.
- Turn the calculator over.
- Locate the battery compartment cover (refer to Image 3).
- Carefully open the cover using a small screwdriver or coin.
- Remova a bateria LR1130 antiga.
- Insert a new LR1130 battery, ensuring correct polarity (+/-).
- Recoloque a tampa do compartimento da bateria com segurança.
Observação: Descarte as baterias usadas de acordo com os regulamentos locais.
Solução de problemas
- O display está em branco:
- Ensure the calculator is exposed to sufficient light for solar power.
- Check if the battery needs replacement (refer to Battery Replacement section).
- Imprensa ON C·CE para ligar o dispositivo.
- Cálculos incorretos:
- Imprensa AC to clear all previous entries and memory.
- Double-check your input values and the sequence of operations.
- As teclas não respondem:
- Ensure the keys are clean and free from debris.
- If the issue persists, try replacing the battery.
Especificações
| Nome do modelo | M112 |
| Mostrar | 12-digit LCD, 1-line display |
| Fonte de energia | Solar powered and battery operated (LR1130) |
| Dimensões (C x L x A) | 11.9 x 7.0 x 1.0 cm |
| Material | Plastic (front made of aluminium) |
| Funções de memória | 3-button memory (M+, M-, MRC) |
| Funções especiais | Percentualtage (%), Tax Calculation (TAX+, TAX-), Double Zero (00), Delete Last Digit (→) |
| Desligamento automático | Sim |
| Fabricante | Jakob Maul GmbH |
Garantia
The MAUL M112 calculator comes with a Garantia de 5 ano from the date of purchase. This warranty covers manufacturing defects under normal use. Please retain your proof of purchase for warranty claims. For detailed warranty terms and conditions, please refer to the official MAUL website ou entre em contato com o suporte ao cliente.
Apoiar
For further assistance, technical support, or inquiries regarding your MAUL M112 calculator, please visit the official MAUL webou entre em contato com o departamento de atendimento ao cliente. As informações de contato geralmente podem ser encontradas na embalagem do produto ou no site do fabricante. website.
Fabricante: Jakob Maul GmbH





