Introduction
This manual provides detailed instructions for the proper use and maintenance of your Casio FX-82SX Plus Scientific Calculator. Please read this manual thoroughly before using the calculator to ensure correct operation and to maximize its functionality. Keep this manual for future reference.
Safety Precautions
- Do not expose the calculator to direct sunlight, extreme temperatures, or high humidity.
- Avoid dropping the calculator or subjecting it to strong impacts.
- Do not attempt to disassemble the calculator.
- Use only the specified battery type. Ensure correct polarity when installing batteries.
- Keep batteries out of reach of small children. If swallowed, seek medical attention immediately.
- Dispose of used batteries according to local regulations.
Product Overview
This image displays the Casio FX-82SX Plus scientific calculator. It features a blue casing, a two-line LCD display at the top, and a comprehensive keypad below. The display shows an example calculation: 'sin 63° 52° 41.' with a result of '8.978590120-01'. The keys are arranged logically, including numerical keys, arithmetic operators, and dedicated function keys for trigonometry, logarithms, powers, and statistical calculations. A protective hard case is included with the product.
The Casio FX-82SX Plus is a scientific calculator designed for educational and general scientific use. It features a clear two-line display, 177 built-in functions, and an intuitive key layout for ease of use. Key features include:
- Two-line LCD display (10+2 digits)
- 177 scientific functions
- S-V.P.A.M. (Super Visually Perfect Algebraic Method) input logic
- Trigonometric and inverse trigonometric functions
- Logarithmic and exponential functions
- Power and root calculations
- Statistical calculations (standard deviation, regression)
- Fraction calculations
- Random number and random integer generation
- Conversions between degrees, radians, and grads
- Battery-powered operation with automatic power-off
- Durable hard case for protection
Setup
Battery Installation
The Casio FX-82SX Plus calculator operates on one AA battery, which is included. To install or replace the battery:
- Ensure the calculator is turned OFF.
- Slide the hard case off the calculator.
- Locate the battery compartment cover on the back of the calculator.
- Using a small screwdriver, remove the screw securing the battery compartment cover.
- Carefully remove the cover.
- Insert one AA battery, ensuring the positive (+) and negative (-) terminals are aligned correctly as indicated inside the compartment.
- Replace the battery compartment cover and secure it with the screw.
- Press the ON key to turn on the calculator and verify operation.
Note: If the display remains blank or shows abnormal characters after battery installation, remove the battery, wait a few moments, and then reinsert it. If the issue persists, contact customer support.
Operating Instructions
Turning On/Off
- To turn on: Press the ON key.
- To turn off: Press SHIFT then AC (OFF). The calculator also features an automatic power-off function to conserve battery life.
Basic Arithmetic Calculations
Enter numbers and operators in sequence. Press = to get the result.
- Addition: [Number] [+] [Number] [=]
- Subtraction: [Number] [-] [Number] [=]
- Multiplication: [Number] [×] [Number] [=]
- Division: [Number] [÷] [Number] [=]
Using Shift and Alpha Keys
Many keys have secondary functions printed above them. To access these functions:
- Press SHIFT (yellow) then the desired key to activate its yellow-printed function.
- (Note: This model does not appear to have an ALPHA key for red-printed functions, based on the image.)
Mode Settings
Press the MODE key to change calculation modes (e.g., COMP, SD, REG) or angle units (Deg, Rad, Gra). Follow the on-screen prompts to select the desired setting.
Memory Functions
- Store to Memory: [Number] [SHIFT] [STO] [M+] (or other memory variables if available).
- Recall from Memory: [RCL] [M+] (or other memory variables).
- Add to Memory: [Number] [M+]
- Subtract from Memory: [Number] [M-]
- Clear Memory: [SHIFT] [CLR] [1] [=] (for Memory) or [SHIFT] [CLR] [ALL] [=] (for all settings and memory).
Advanced Functions
Trigonometric Functions
Ensure the correct angle unit (Deg, Rad, Gra) is selected using the MODE key.
- Sine: [sin] [Angle] [=]
- Cosine: [cos] [Angle] [=]
- Tangent: [tan] [Angle] [=]
- Inverse Sine (arcsin): [SHIFT] [sin⁻¹] [Value] [=]
- Inverse Cosine (arccos): [SHIFT] [cos⁻¹] [Value] [=]
- Inverse Tangent (arctan): [SHIFT] [tan⁻¹] [Value] [=]
Logarithmic and Exponential Functions
- Common Logarithm (log₁₀): [log] [Number] [=]
- Natural Logarithm (ln): [ln] [Number] [=]
- 10 to the Power of X (10ˣ): [SHIFT] [10ˣ] [Number] [=]
- e to the Power of X (eˣ): [SHIFT] [eˣ] [Number] [=]
Statistical Calculations
To perform statistical calculations:
- Enter MODE and select SD (Standard Deviation) or REG (Regression) mode.
- Input data points: [Data Value] [M+]. Repeat for all data points.
- After entering all data, press SHIFT then the relevant statistical function key (e.g., x̄ for mean, σx for population standard deviation, sx for sample standard deviation).
Fraction Calculations
Use the a b/c key for fraction input and conversion.
- Inputting a simple fraction: [Numerator] [a b/c] [Denominator]
- Inputting a mixed fraction: [Whole Number] [a b/c] [Numerator] [a b/c] [Denominator]
- Converting between mixed and improper fractions: Press SHIFT then d/c.
- Converting between fraction and decimal: Press a b/c again.
Maintenance
- Cleaning: Wipe the calculator with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Storage: When not in use for extended periods, store the calculator in its hard case in a cool, dry place.
- Battery Replacement: Replace the battery promptly when the display becomes dim or calculations become erratic. Refer to the "Battery Installation" section for instructions.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Display is blank. | Calculator is off, battery is dead, or battery is incorrectly installed. | Press ON. Replace battery if necessary, ensuring correct polarity. |
| Incorrect calculation results. | Incorrect mode setting, incorrect angle unit, or input error. | Check MODE settings (e.g., COMP, SD, REG). Verify angle unit (Deg, Rad, Gra). Re-enter calculation carefully. Clear all memory and settings (SHIFT CLR ALL =). |
| "Math ERROR" or "Syntax ERROR" displayed. | Mathematical error (e.g., division by zero, square root of a negative number) or incorrect expression syntax. | Review the calculation for mathematical impossibilities. Correct the input syntax. Press AC to clear the error. |
| Keys are unresponsive. | Low battery or internal malfunction. | Replace the battery. If the problem persists, contact customer support. |
Specifications
- Model: FX-82SX Plus
- Brand: Casio
- Display: 2-line LCD (10+2 digits)
- Functions: 177
- Input Logic: S-V.P.A.M.
- Power Source: 1 x AA battery
- Battery Life: Approximately 2 years (based on 1 hour of operation per day)
- Dimensions (H x W x D): 19.5 mm x 78 mm x 155 mm (0.77 in x 3.07 in x 6.10 in)
- Weight: Approximately 130 g (4.59 oz) (including battery)
- Operating Temperature: 0°C to 40°C (32°F to 104°F)
Warranty and Support
For information regarding warranty coverage, service, or technical support for your Casio FX-82SX Plus Scientific Calculator, please refer to the warranty card included with your product or visit the official Casio website for your region. Contact details for customer service are typically available on the manufacturer's website.
You can find more information and support resources at the official Casio website: www.casio.com
