VAISALA Wind Set WA15
With a proven track record of successful installations, the Vaisala Wind Set WA15 has earned its reputation as the industry standard in the wind sensor market. The WA15 consists of a Vaisala Anemometer WAA151, a Vaisala Wind Vane WAV151, an optional crossarm, a power supply and cabling. Anemometer with Excellent Linearity The WAA151 is a fast response, low threshold anemometer. Three lightweight, conical cups mounted on the cup wheel, provide excellent linearity over the entire operating range, up to 75 m/s. A wind-rotated chopper disc attached to the shaft of the cup wheel cuts an infrared light beam 14 times per revolution. This generates a pulse output from the phototransistor.
Description
Features/Benefits
- High-performance wind measurement set
- Long and successful track record in meteorological
- applications
- Accurate wind speed and direction measurement
- Low measurement starting threshold
- Conical anemometer cups provide excellent linearity
- Heated shaft prevents bearings from freezing
Sensitive Wind Vane
The WAV151 is a counter-balanced, low-threshold, optoelectronic wind vane. Infrared LEDs and phototransistors are mounted on six orbits on each side of a 6-bit GRAY-coded disc. Turned by the vane, the disc creates changes in the code received by the phototransistors. The output code resolution is ±2.8°.
Heated Bearings Withstand Cold Weather
Heating elements in the shaft tunnels of both the anemometer and vane keep the bearings above freezing in cold climates.
Complete Package Available
The anemometer and vane are designed to be mounted on Vaisala crossarms. The WHP151 power supply provides the operating and heating power needed for the WA15. The power supply, as well as the signal and power cables are available as options
| Measurement | |
|---|---|
| WAA151 sensor/transducer type | Cup anemometer/opto-chopper |
| WAA151 observation range | 0.4–75 m/s (0.9–168 mph) |
| WAA151 starting threshold | < 0.5 m/s (1.1 mph) |
| WAA151 distance constant | 4.0 m (13 ft 1 in) |
| WAA151 transducer output (0–75 m/s) | 0–750 Hz square wave |
| WAA151 characteristic transfer function | Uf (wind speed) = 0.328 + 0.101 × R (output pulse rate) |
| WAA151 transducer output level – high state | > Uin −1.5 V (Iout < +5 mA) |
| WAA151 transducer output level – low state | < 2.0 V (Iout > −5 mA) |
| WAA151 accuracy (with characteristic transfer function) | ±0.17 m/s (0.38 mph), within 0.4–60 m/s |
| WAA151 accuracy (with simple transfer function) | ±0.5 m/s (1.12 mph), within 0.4–60 m/s |
| WAA151 dimensions (H × Ø) | 240 × 90 mm (9.45 × 3.54 in) |
| WAA151 swept radius of cup wheel | 91 mm (3.58 in) |
| WAA151 weight | 570 g (1.26 lb) |
| WAA151 housing material | AlMgSi, gray anodized |
| WAA151 cup material | PA, reinforced with carbon fiber |
| WAV151 sensor/transducer type | Optical code disc |
| WAV151 observation range (at 0.4–75 m/s wind speed) | 0–360° |
| WAV151 starting threshold | < 0.4 m/s (0.9 mph) |
| WAV151 resolution | ±2.8° |
| WAV151 damping ratio | 0.19 |
| WAV151 overshoot ratio | 0.55 |
| WAV151 delay distance | 0.4 m (1 ft 4 in) |
| WAV151 accuracy | Better than ±3° |
| WAV151 output | 6-bit parallel GRAY code |
| WAV151 dimensions (H × Ø) | 300 × 90 mm (11.81 × 3.54 in) |
| WAV151 swept radius of vane | 172 mm (6.77 in) |
| WAV151 weight | 660 g (1.46 lb) |
| WAV151 housing material | AlMgSi, gray anodized |
| WAV151 vane material | AISI 12, anodized |
| WA15 junction box | 125 × 80 × 57 mm (4.92 × 3.15 × 2.24 in) |
| WA15 cross-arm length | 800 mm (31.50 in) |
| WA15 mounting (pole mast nominal outside diameter) | 60 mm (2.36 in) |
| Outputs | |
| WAA151 electrical connections | MIL-C-26482 type, 6-wire cable |
| WAA151 cabling | 6-wire cable through cross-arm |
| WAA151 recommended connector at cable end | Souriau UTS6JC10E6P |
| WAA151 settling time after power-up | < 30 µs |
| WAV151 electrical connections | MIL-C-26482 type, 10-wire cable |
| WAV151 cabling | 10-wire cable through cross-arm |
| WAV151 recommended connector at cable end | Souriau UTS6JC12E10P |
| WAV151 settling time after power turn-on | < 100 µs |
| Power Requirements | |
| WAA151 operating power supply | Uin = 9.5–15.5 V DC, 20 mA typical |
| WAA151 heating power supply | AC or DC 20 V, 500 mA nominal |
| WAV151 operating power supply | Uin = 9.5–15.5 V DC, 20 mA typical |
| WAV151 heating power supply | 20 V AC or DC, 500 mA nominal |
| Environmental | |
| WAA151 operating temperature (with shaft heating) | −50 … +60 °C (−58 … +140 °F) |
| WAA151 storage temperature | −60 … +70 °C (−76 … +158 °F) |
| WAA151 operating humidity | 0–100 %RH |
| WAA151 IP rating | IP65 |
| WAV151 operating temperature (with shaft heating) | −50 … +60 °C (−58 … +140 °F) |
| WAV151 storage temperature | −60 … +70 °C (−76 … +158 °F) |
| WAV151 operating humidity | 0–100 %RH |
| WAV151 IP rating | IP65 |
| Certification & Compliance | |
| Compliance marks | CE, China RoHS |
| EU directives and regulations | RoHS Directive (2011/65/EU) as amended by 2015/863; EMC Directive (2014/30/EU) |
| Electromagnetic compatibility (EMC) | EMC 55032:2015 (Multimedia equipment emission requirements, Class B); EN 61326-1:2013 |
| Environmental | IEC/EN 63000:2018 |
