Introducció
The MAUL Eco 850 is an environmentally friendly desktop calculator designed for office, desk, and school use. This solar-powered device features a 12-digit LCD display and is constructed from 80% recycled plastic, earning it the "Blue Angel" eco-label. This manual provides instructions for setup, operation, maintenance, and troubleshooting to ensure optimal performance and longevity of your calculator.
Image: The MAUL Eco 850 Desktop Calculator, demonstrating its compact size and clear display.
Configuració
The MAUL Eco 850 calculator is solar-powered and does not require batteries. It is ready for use when exposed to sufficient light.
- Desembalatge: Carefully remove the calculator from its environmentally friendly, plastic-free packaging.
- Encès: Place the calculator in an area with adequate ambient light (at least 50 lux). The display should activate automatically. If the display does not turn on, ensure it is exposed to brighter light.
Image: The MAUL Eco 850 calculator ready for use on a desk.
Instruccions de funcionament
The MAUL Eco 850 features a 12-digit LCD display and a range of functions for various calculations.
Funcions bàsiques
- Addition (+), Subtraction (-), Multiplication (×), Division (÷): Enter the first number, press the desired operation key, enter the second number, then press the equals (=) key for the result.
- Percenttage (%): Per calcular un percentatgetage, enter the base number, press the multiplication (×) key, enter the percentage value, then press the % key. For exampÉs a dir, per calcular el 10% de 200, introduïu 200 × 10%.
- Arrel quadrada (√): Enter the number, then press the √ key to calculate its square root.
- Canvi de signe (+/-): Press this key to change the sign of the displayed number from positive to negative or vice versa.
- Doble Zero (00): Introduïu ràpidament dos zeros.
Funcions de memòria
- M+ (Memòria Plus): Afegeix el valor mostrat a la memòria.
- M- (menys de memòria): Resta el valor mostrat de la memòria.
- MR (recuperació de memòria): Recalls the value stored in memory to the display.
- MC (esborrat de memòria): Clears the memory.
Funcions clares
- ENCÈS/CA (Tot clar): Clears all entries and memory, resetting the calculator.
- C (Esborrar entrada): Clears the last entered number or the current calculation without affecting memory or previous operations.
Imatge: Detallada view of the calculator's display and key layout.
Manteniment
To ensure the longevity and proper functioning of your MAUL Eco 850 calculator, follow these maintenance guidelines:
- Neteja: Use a soft, dry cloth to clean the calculator's surface and display. Avoid using liquid cleaners, abrasive materials, or solvents, as these can damage the plastic and electronic components.
- Font d'alimentació: As the calculator is solar-powered, ensure it is regularly exposed to light to maintain its charge. Avoid storing it in dark places for extended periods.
- Emmagatzematge: Guardeu la calculadora en un lloc fresc i sec, allunyat de la llum solar directa, de temperatures extremes i d'alta humitat.
- Manipulació: The calculator features sturdy plastic buttons. Avoid dropping the device or subjecting it to strong impacts.
Imatge: Lateral view highlighting the calculator's ergonomic design.
Resolució de problemes
If you encounter issues with your MAUL Eco 850 calculator, refer to the following common problems and solutions:
| Problema | Causa possible | Solució |
|---|---|---|
| La pantalla està en blanc o tènue. | Insufficient light for solar cells. | Mou la calculadora a una zona més il·luminada. Assegura't que el panell solar no estigui obstruït. |
| Resultats de càlcul incorrectes. | Input error or previous calculation residue. | Premeu ON/AC to clear all entries and memory, then re-enter the calculation. Double-check your input. |
| Les tecles no responen. | Temporary software glitch or low power. | Ensure adequate light. If the problem persists, try pressing ON/AC. |
Especificacions
- Marca: APALLISSAR
- Model: Eco 850 (Model Number: 7268890)
- Visualització: 12-digit LCD, 1-line display
- Font d'alimentació: Solar Powered (operates from 50 lux)
- Material: Housing made from 80% recycled plastic
- Funcions: Basic arithmetic (+, -, ×, ÷), Percentage (%), Square Root (√), Memory (M+, M-, MR, MC), Sign Change (+/-), Double Zero (00), Clear Entry (C), All Clear (ON/AC).
- Dimensions: 17.5 x 12.6 x 0.1 cm (aprox. 6.9 x 5.0 x 0.04 polzades)
- Pes: 211 g (aprox. 7.4 oz)
- Certificació ambiental: Blue Angel / UZ116
Image: The calculator proudly displaying the Blue Angel eco-label.
Garantia i Suport
The MAUL Eco 850 Desktop Calculator comes with a 5 any de garantia, reflecting MAUL's commitment to precision and reliability. For support or warranty claims, please refer to the contact information provided with your purchase or visit the official MAUL website. MAUL, a German family business with over 110 years of experience, ensures high-quality products and customer service.
