Wind speed |
|
Sensor / transducer type
|
cup anemometer / opto-chopper |
|
Measurement range |
0.4...75 m/s |
|
Starting threshold |
<0.5 m/s * |
|
Accuracy (range 0.4...60 m/s)
with characteristic |
±0.17 m/s ** |
|
transfer function
with transfer function U=0.1xR |
±0.5 m/s |
|
|
* Measured with cup wheel in position least favoured by flow direction.
Optimum position gives approx. 0.35 m/s threshold.
** Standard
deviation. |
Wind direction |
|
Sensor / transducer type |
vane / optical code disc
|
|
Measurement range
(wind speed 0.4...75 m/s) |
0...360° |
|
Starting threshold
|
<0.4 m/s |
|
Delay distance |
<0.5 m |
|
Resolution |
±2.8° |
|
Accuracy |
better than ±3° |
Inputs and outputs |
|
Operating power supply |
|
|
WAA252 |
Uin = 24 VDC ±10%, max. 3.2 A
72 W below +2 °C (+36 °F) (heating on)
1
W above +6 °C (+43 °F) (heating off) |
|
WAV252
|
Uin = 24 VDC ±10%, max. 2.1 A
50 W below +2 °C (+36 °F) (heating on)
1
W above +6 °C (+43 °F) (heating off) |
|
Output for WAA252 (wind speed)
|
|
|
Transducer output |
0...75 m/s = 0...750 Hz square wave
|
|
Transfer function |
U = 0.39 + 0.10 x R
(U = wind speed [m/s], R = o/p pulse rate [Hz]) |
|
Transducer output level |
(Iout < +5 mA) high state > 11 V
(Iout > -5 mA) low state < 2 V |
|
Output for WAV252 (wind direction) |
|
|
Transducer output |
6-bit parallel GRAY code |
|
Transducer output level |
(Iout < +5 mA) high state > 11 V
(Iout > -5 mA) low state < 2 V |
Operating temperature |
|
With shaft heating |
-55...+55 °C (-58...+131 °F) |
|
Storage temperature |
-60...+70 °C (-76...+158 °F) |
For complete specifications, please see the datasheet or user guide in "Documents".