Chapter 8 ____________________________________________________________ Technical Data
VAISALA______________________________________________________________________ 257
Ultrasonic Wind Sensor WMT703
Table 100 Wind Speed
Property Description/Value
Measurement range 0 ... 75 m/s
Starting threshold 0.01 m/s
Resolution 0.01 m/s
Response time 250 ms
Available variables Instant, peak, average, maximum, minimum,
gust, lull
Table 101 Wind Direction
Property Description/Value
Measurement range 0 … 360 °
Starting threshold 0.1 m/s
Resolution 1 °
Response time 250 ms
Available variables Instant, average, maximum, minimum
Table 102 Outputs
Property Description/Value
Digital output type COM1: RS-485
Message format NMEA Standard and Extended (version
0183),
Bit rate 9600
Readout update interval Max. 4 Hz
Units available m/s, knots, mph, km/h, V, mA, Hz
Operating mode Automatic transmission or poll mode
Virtual temperature Celsius degrees
NOTE
In extreme weather conditions, ice or snow accumulation may cause a
temporary wind measurement blackout even when heating is enabled.
WMT703 indicates this with missing readings or in the data message.
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