DAVIS Anemometer for Vantage Pro2 (6410) - Manual (Page 7)

5
Installing the Anemometer
Orient the Wind Vane
The wind vane rotates 360° to display current and dominant wind directions on the compass
rose of the console display. To obtain accurate readings, the vane must be correctly oriented
when mounting the anemometer outside. By default, the wind vane reports the correct wind
direction if the anemometer arm points true north.
To ensure correct orientation of the wind vane, mount the anemometer so that the arm points
true north.
If your anemometer arm cannot be mounted aiming true north, you will need to
calibrate the wind direction on your console to display accurate wind directions.
See your Vantage Pro2 Console Manual or Envoy Manual.
Anemometer Siting Guidelines
• Mount the anemometer so that the arm is aimed true north.
Note: If your anemometer cannot be mounted aiming true north, you will need to calibrate the wind
direction on your console to display accurate wind directions. See your console user manual
• For best results, place the anemometer at least 7' (2.1 m) above surrounding
obstructions such as trees or buildings that obstruct wind flow.
• If mounting on a roof, mount the anemometer at least 7' (2.1 m) above the roof
apex (when using a Mounting Tripod, install the anemometer at the very top of
the pole).
• If mounting the ISS and the anemometer together, such as on a pole or a
wooden post, mount the anemometer so it is at least 12'' (0.3 m) above the top
of the rain collector cone for best results.
• The standard for meteorological and aviation applications is to place the
anemometer 33' (10 m) above the ground. Seek professional help for this type
of installation.
• The standard for agricultural applications is to place the anemometer 6' (2 m)
above the ground. This is important for evapotranspiration (ET) calculations.
Note: For roof mounting, and ease of installation, we recommend using the optional mounting tripod
(#7716). For other installations, use the Mounting Pole Kit (#7717).
Note: For more detailed siting suggestions, see Application Note #30: Reporting Quality Observations to
NOAA on the Davis Support web site (http://www.davisnet.com/support/weather).