This is the manual for testo 405-V1 thermal anemometer, including power on/off, parameter switching, pipe cross-section setting, etc.
This manual describes the functions and proper use of the Testo 405‑V1 thermal wind speed instrument. It includes guidance on measuring wind speed and temperature, setting up the device, and interpreting the displayed values.
The document also covers calibration procedures, sensor replacement, warranty information, and safety notes such as avoiding operation outside the specified temperature limits and handling the sensor correctly. This manual is written in Chinese.
| Wind speed range (low temperature) | 0‑5 m/s (-20 °C to 0 °C) |
|---|---|
| Wind speed range (high temperature) | 0‑10 m/s (0 °C to 50 °C) |
| Operating temperature range | -20 °C to 50 °C |
| Storage temperature range | -20 °C to +70 °C |
| Sensor diameter | 127 mm |
| Sensor length | 150‑300 mm |
| Warranty period | 1 year |
The device operates between –20 °C and 50 °C.
The instrument has a warranty period of one year.
Replace the sensor according to the replacement procedure described in the manual.