This document explains how to remove and install the calculator protective case, and provides safety precautions before using the calculator.
This manual provides safety instructions, battery handling guidelines, and detailed operating procedures for the fx‑95MS, fx‑100MS, fx‑115MS, fx‑570MS and fx‑991MS calculators. It explains how to select calculation modes, enter data, use the dual‑line display, and perform statistical and regression calculations.
The document also includes specifications such as power source, battery life, dimensions, weight, power consumption and operating temperature, plus troubleshooting tips for error messages and stack limits. This manual is written in Chinese.
| Power source | AA battery (R6P) |
|---|---|
| Battery life | ≈17,000 hours of continuous cursor display |
| Dimensions | 195 mm × 155 mm (height × width) |
| Weight | 130 g (including battery) |
| Power consumption | 0.00002 W |
| Operating temperature | 0 °C to 40 °C |
For the fx‑95MS and fx‑100MS the battery should be replaced every 2 years, while the fx‑115MS, fx‑570MS and fx‑991MS require replacement every 3 years.
The upper line shows the entered expression, and the lower line shows the calculation result.
Press the corresponding function key repeatedly until the desired format selection screen appears.