This is a user manual for CASIO calculator fx-82ES fx-83ES fx-85ES fx-300ES fx-350ES, which includes the introduction of the product's functions, usage methods and safety precautions.
This manual covers safety precautions, battery handling, initial setup, and basic operation of the Casio scientific calculators. It explains how to turn the device on and off, adjust display contrast, and use the various function keys.
Technical specifications for each model are listed, including power source, battery life, power consumption, operating temperature range, dimensions, and weight. The document also provides guidance on proper storage, cleaning, and disposal of the calculators. This manual is written in Chinese.
| Power source (fx-82ES/83ES) | AAA battery (FHO3 (UM-4) x1) |
|---|---|
| Battery life (fx-82ES/83ES) | ≈6000 h (continuous operation) |
| Power consumption (fx-82ES/83ES) | ≈0.002 W |
| Operating temperature (all models) | 5 °C to 40 °C |
| Dimensions (fx-82ES/83ES/350ES) | 13.7 mm × 80 mm × 161 mm (H × W × L) |
| Weight (fx-82ES/83ES/350ES) | 110 g (including battery) |
| Power source (fx-85ES/300ES) | Built‑in LR44 (SGPA76) battery |
| Battery life (fx-85ES/300ES) | ≈3 years (1 h daily use) |
| Dimensions (fx-85ES/300ES) | 12.2 mm × 80 mm × 161 mm (H × W × L) |
| Weight (fx-85ES/300ES) | 105 g (including battery) |
Press the [ON] key to power on the calculator and press the [OFF] key to power it off.
Use the [SETUP] key followed by the [CONTR] key to adjust the LCD contrast.
The fx‑85ES measures 12.2 mm high, 80 mm wide, and 161 mm long.