Vaisala WMS302 Guide de l'utilisateur télécharger pdf (Page 244)

User's Guide ______________________________________________________________________

242 __________________________________________________________________M210630EN-B

Combined Wind Sensor

Specifications

Table 65 Anemometer Specifications

Property Description/Value

Sensor/Transducer type Dual Reed switch

Measuring range 0.5 ... 60 m/s (1 ... 117 kt)

Starting threshold < 0.4 m/s (0.8 kt)

Distance constant 2 m (6.6 ft)

Transducer output 1 Hz ~ 0.7 m/s

Accuracy

≤ 10 m/s ±0.3 m/s (0.6 kt)

> 10 m/s error < 2 %

Transfer function, where U = -0.24 + F × 0.699

U = wind speed [m/s]

F = output frequency [Hz]

Table 66 Vane Specifications of WMS302

Property Description/Value

Sensor / Transducer type Potentiometer

Measuring range 0 ... 360°

Starting threshold < 1.0 m/s

Damping ratio 0.3

Overshoot ratio 0.4

Delay distance 0.6 m

Accuracy Better than ±3°

Table 67 Common Specifications

Property Description/Value

Supply voltage 3 ... 15 VDC

Electrical connections 5-pin male with 12 mm threads

Body material AlMgSi, gray anodized

Cup material PA, reinforced with carbon fiber;

black

Vane material PA, reinforced with glass fiber, white

Operating temperature -40 ... +55 °C (-40 ... +131 °F)

Storage temperature -60 ... +65 °C (-76 ... +149 °F)

Dimensions h × w 265 × 360 mm (10.4 × 14.2 in.)

Weight 360 g (12.7 oz)

1 2 ... 239 240 241 242 243 244 245 246 247 248 249 ... 261 262

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Vaisala WMS302 Guide de l'utilisateur Page 244