This document provides instructions and precautions for using the CASIO watch 3071 (B), including the built-in sensor functions for measuring direction, air pressure, temperature, and altitude, as well as the requirements for charging and using the solar-powered battery.
This manual covers all functions of the Casio 3071 (B) watch, including time and date setting, world time, digital compass, barometer/temperature, altimeter, alarms, timer, stopwatch and power management. Detailed step‑by‑step instructions show how to navigate the menus, calibrate sensors and retrieve stored data.
Safety notes, battery charging guidelines, and troubleshooting tips are provided to ensure reliable operation during outdoor activities such as hiking and mountaineering. This manual is written in Chinese.
| Battery type | Solar‑charged rechargeable battery |
|---|---|
| Charging time (bright sunlight) | ≈5 minutes |
| Charging time (indoor fluorescent) | ≈50 minutes |
| Altitude measurement range | -700 m to 10 000 m (‑2 300 ft to 32 800 ft) |
| Pressure measurement range | 260 hPa to 1 100 hPa |
| Temperature measurement range | -10 °C to 60 °C |
| Altitude display unit | 5 m (20 ft) steps |
| Pressure unit options | hPa or inHg |
The barometer measures atmospheric pressure; changes in pressure are displayed and can be used to predict weather trends, with higher pressure indicating improving conditions and lower pressure indicating deterioration.
The altimeter uses the built‑in pressure sensor to measure atmospheric pressure and converts it to altitude based on the International Standard Atmosphere (ISA) reference values, optionally using a user‑set reference height.