Casio fx-82ES PLUS / fx-85ES PLUS / fx-95ES PLUS / fx-350ES PLUS User Manual

About this manual

The manual explains how to set up and operate the Casio scientific calculators, covering initialization, safety precautions, power management, display settings, and various calculation modes. It includes step‑by‑step instructions, key markings, and menu navigation to help users perform basic arithmetic, statistical analysis, equation solving, and table generation.

Additional sections cover battery replacement, automatic power‑off behavior, contrast adjustment, and troubleshooting common problems. The specifications and regulatory information are provided at the end of the document. This manual is written in Chinese.

What's inside

• Safety Precautions
• Power Operation
• Display and Contrast Adjustment
• Calculation Modes
• Statistical and Equation Functions
• Battery Replacement
• Specifications
• Troubleshooting

Specifications

Frequently asked questions

How often should the battery be replaced and what type is required?

Use an LR44 battery and replace it every 1–3 years depending on usage.

How can I adjust the display contrast?

Press SETUP, then CONT, and use the arrow keys to increase or decrease the contrast.

What does the auto‑power‑off feature do?

If the calculator is idle for about ten minutes, it automatically turns off to save battery.