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I. General
Model W639-ED1 is an Aero plane type Wind speed & direction sensor.
Wind speed is output with pulse voltage that is converted by propeller rotation.
As for wind direction, the rotation angle of the counterbalanced tail is detected with a
brushless potentiometer and voltage of 0 to 1V is output at 0 to 360 °
II. Specifications
1. Model
: W639-ED1 Aero plane Type Wind Speed & Direction Sensor
2. Wind speed
: Photoelectric Pulse type
60 pulses per a rotation of propeller (3081 pulses at 60m/s)
3. Wind direction
: Blushless potentiometer
4. Starting speed
: less than 2 m/s
5. Withstand wind speed: 108 m/s (in a wind tunnel)
6. Wind speed Output : Square pulse of 9V peak, Power 12V (load: less than 20mV)
7. Wind direction Output: 0 to 1VDC / 0 to 360°
8. Allowable error
: Wind speed
: within 0.5m/s at less than 10 m/s
within 5% of rdg at more than 10 m/s
: Wind direction
: within ±5°
9. Power requirement : 12VDC (possible to use between 10V and 14VDC)
10. Power Consumption : approx. 20mA
11. Input & output connectors: NJW-205-PF10 Cable diameter: 8.6 to 10.5mm
12. Operation ambient : -20 to 50
℃
(without freeze at the rotating section)
13. Materials
: Propeller and body : Polycarbonate resin
Counterbalanced tail: Polyester resin + Glass-fiber
14. Outer dimensions
: Ø250 (W) x 510(D) x 600(H) mm
15. Weight
: approx. 3 kg
