Measurement principle
The low-inertia 3-cup rotor is set into rotation by the wind. The wheel is scanned optoelectronically and the measuring value is available at the output as a digital signal.
|
Characteristics |
|
|---|---|
| Measurement range | 0 ... 75 m/s |
| Accuracy | ± 0.2 m/s (<10 m/s); ± 2% of reading (> 10m/s) |
| Resolution | 0.05 m/s |
| Non-Linearity | 0.4 % full-range output frequency (correction curve supplied) |
| Starting wind speed | 0.2 m/s |
| Survival wind speed | max. 75 m/s |
| Distance constant | 2.3 m ± 10 % |
| Ambient temperature | -30 ... +70 °C |
| Transducer | Interruption of optical beam |
|
Operating supply |
4.75 ... 28 VDC (max 1.3 mA, average is typically less than 1 mA) |
|
Electrical output |
0 ... 1500 Hz |
| Termination | cable length 3 m |
| Materials | Anodized aluminium, weather-resisting plastics |
| Weight Anemometer | 0.5 kg (Gross weight for shipping: 1 kg) |
| Recalibration | recommended interval every 24 months |
| Manufacturer | Vector Instruments / UK (A100LM) |
