Airmar 200WX—Ultrasonic WeatherStation® Instrument - Manual (Page 7)

7
The Importance of Understanding True Wind Direction
When the WeatherStation Instrument is stationary, the direction from which the
wind is blowing is known as the true wind. The WeatherStation Instrument is
programed to measure the direction based upon the specific orientation of the
sensor. For the WeatherStation Instrument to accurately calculate the true
direction of the wind, it must be installed and oriented correctly.
To learn more about true and apparent wind direction, visit www.airmar.com and go
to Installation Instructions and Owner’s Guides > WeatherStation Instruments or
see the “How the WeatherStation Instrument Works” on the WeatherCaster CD.
Adding External Sensors
Some WeatherStation Instruments can receive data from an external sensor(s).
The WeatherStation Instrument will automatically detect whether a sensor(s) is
internal, external, or not available at all. The WeatherStation Instrument gives
priority to valid external-sensor data when available.
- NMEA 0183—Simply connect the sensor(s) to a Combiner or other NMEA
0183 repeater hardware.
- NMEA 2000®—Connect the sensor(s) to the NMEA 2000 network.
NOTE: When an external speed sensor is connected to both an NMEA 0183
device and an NMEA 2000 network, the WeatherStation Instrument will use
NMEA 2000 data.
• Speed-through-water sensor—An external speed sensor can be installed,
such as an Airmar Smart™ Sensor. Airmar recommends installing the
DST800V to receive water depth, boat speed, and water temperature data.