Casio FX-85DE CW ClassWiz Technical Scientific Calculator
Model: FX-85DECW | Brand: Casio
Introducció
The Casio FX-85DE CW ClassWiz is a technical scientific calculator designed for a wide range of mathematical and scientific calculations. It features a natural display, an intuitive icon menu, and over 310 functions, making complex calculations accessible and efficient. This manual provides essential information for setting up, operating, and maintaining your calculator.
Figura 1: Frontal view of the Casio FX-85DE CW ClassWiz calculator, showing its display and key layout. The display shows a complex fraction calculation.
Configuració
Battery Installation and Power Source
The Casio FX-85DE CW ClassWiz calculator operates using both solar power and a single LR 044 battery. The battery is included with the product.
- Ensure the calculator is exposed to sufficient light for solar operation.
- The LR 044 battery provides power in low-light conditions or when solar power is insufficient.
- To replace the battery, refer to the "Maintenance" section for detailed instructions.
Encès inicial
Per engegar la calculadora, premeu la tecla ON button located on the top left of the keypad. The calculator will display the main menu or the last active calculation mode.
Instruccions de funcionament
Visualització i navegació
- Visualització natural: Mathematical expressions such as roots, fractions, and logarithms are displayed as they appear in textbooks.
- Icon Menu: Navigate through various modes and functions using the intuitive icon menu. Use the directional keys to select an icon and press OK per confirmar.
- Characters/Lines: The display supports 17 characters per line with 1+10/1 lines for input/output.
- Display Shades: The display features 4 shades of grey for improved readability.
Operacions bàsiques
- Aritmètica: Perform addition, subtraction, multiplication, and division using the dedicated keys.
- Càlcul de fraccions: Input and calculate fractions directly using the fraction key.
- Percenttage Càlcul: Utilitzeu el percentatgetage function for calculations involving percentages.
- Exponent and Logarithm: Access functions for exponents (x², xʸ), square roots (√), and logarithms (log, ln, 10ˣ).
Funcions avançades
- Funcions trigonomètriques: Calculate sine, cosine, tangent, and their inverse functions (sin⁻¹, cos⁻¹, tan⁻¹).
- Funcions hiperbòliques: Access sinh, cosh, tanh, and their inverse functions.
- Angle Dimensions: Convert between DEG (degrees), RAD (radians), and GRAD (gradians).
- Coordinate Conversion: Convert between polar and rectangular coordinates.
- Prime Factor Decomposition: Determine the prime factors of a number.
- Technical Notation: Use ENG/ENG notation for engineering calculations.
- Random Number Generator: Generate random numbers or integer random numbers.
- Check Function "Verify": Verify the correctness of equations.
- Value Table: Generate tables of values for functions f(x) and g(x).
- Periodic Decimal Fraction: Display periodic decimal fractions.
Càlculs estadístics
The calculator supports various statistical calculations:
- Sum formation of ∑x, ∑x²
- Sum formation of ∑x, ∑y, ∑x², ∑y², ∑x*y
- Standard deviations for grouped and ungrouped values
- Anàlisi de regressió
- Permutation (nPr) and Combinatorics (nCr)
Característiques especials
- Maths Box: Simulate random experiments such as coin tosses and dice rolls.
- Funció del codi QR: Generate QR codes to visualize results and functions on a smartphone or tablet.
- German Menu Language: The calculator features German menu navigation.
Manteniment
Neteja
To clean the calculator, use a soft, dry cloth. Do not use abrasive cleaners, solvents, or alcohol, as these can damage the casing i pantalla.
Emmagatzematge
Store the calculator in its hard case when not in use to protect it from dust, scratches, and impacts. Avoid exposing the calculator to extreme temperatures or direct sunlight for prolonged periods.
Canvi de bateria
The calculator uses one LR 044 battery. When the display becomes dim or the calculator functions erratically, it may be time to replace the battery.
- Apagueu la calculadora.
- Localitza el compartiment de la bateria a la part posterior de la calculadora.
- Obriu amb cura la tapa del compartiment.
- Remove the old LR 044 battery.
- Insert a new LR 044 battery, ensuring correct polarity (+/-).
- Tanqueu bé la tapa del compartiment de la bateria.
- Elimina la bateria antiga d'acord amb la normativa local.
Resolució de problemes
| Problema | Causa possible | Solució |
|---|---|---|
| La calculadora no s'encén. | Insufficient light for solar power, or dead battery. | Move to a well-lit area. Replace the LR 044 battery. |
| La pantalla està tènue o parpelleja. | Potència de bateria baixa. | Replace the LR 044 battery. Ensure adequate light for solar panel. |
| Resultats de càlcul incorrectes. | Incorrect mode setting, syntax error, or memory issue. | Check the current mode (e.g., DEG/RAD). Review input syntax. Clear calculator memory if necessary (refer to advanced manual for reset procedure). |
| Les tecles no responen. | Calculator frozen or physical damage. | Try turning the calculator off and on again. If problem persists, contact customer support. |
Especificacions
Figure 2: Dimensions of the Casio FX-85DE CW ClassWiz calculator, showing a height of 6.38 inches and a width of 3.03 inches.
- Número de model: FX-85DECW
- Dimensions del producte: 6.81 x 3.03 x 0.63 polzades (17.3 x 7.7 x 1.6 cm)
- Pes de l'article: 3.35 unces (95 g)
- Font d'alimentació: Solar + 1x LR 044 Battery (included)
- Visualització: 63 x 192 full dot, Natural Display, 4 shades of grey
- Funcions: Més de 310 funcions
- Memòria: 9 variable memory
- Apagat automàtic: Sí
- Accessoris inclosos: Estoig dur
- Fabricant: Casio Europe GmbH
Garantia i Suport
Per obtenir informació sobre la garantia i l'assistència al client, consulteu la pàgina oficial de Casio. website or contact your local Casio distributor. Keep your purchase receipt as proof of purchase for any warranty claims.
For further assistance or detailed operational guides, please visit the Casio Calculators official weblloc.
