This manual describes the use of the testo 425 thermal anemometer.
This manual provides instructions for safely operating the Testo 425 thermal anemometer, including setup, measurement procedures, and configuration settings. It details safety precautions, proper usage, display controls, and technical specifications such as measurement ranges and battery life. The device is designed for airflow and temperature measurements in non-explosive environments, with a 9V battery powering the unit and a 20-hour operational life. Optional TopSafe protection is available for environmental durability.
| Measuring Range (Flow) | 0...+20 m/s |
|---|---|
| Resolution (Flow) | 0.01 m/s |
| Accuracy (Flow) | ±0.03 m/s + 5% of reading |
| Battery Life | Approx. 20 hours |
| Protection Class | IP 65 with TopSafe |
| Warranty | 2 years |
Battery life is approximately 20 hours.
Accuracy is ±0.03 m/s + 5% of reading.