Davis Instruments Vantage VUE Sensor Suite, Manual

Page: 18 / 24

16
Finishing the Installation
Clearing Data Collected During Testing and Installation
Now that the ISS is mounted outside, any data that was collected during testing and mounting
should be cleared.
To clear all the collected data:
1. Run WeatherLink software.
2. Select
Clear from the Setup menu.
3. The Clear dialog box will appear.
4. Choose
Check All , then click OK to clear all the data.
Calibrate Wind Direction (if necessary)
The wind vane is calibrated at the factory to be accurate when the solar panel is pointing
true south. If you are in the Southern Hemisphere or anywhere where your ISS cannot be
installed with the solar panel facing south, you must calibrate the wind direction
readings in WeatherLink software.
1. Open WeatherLink.
2. In the
Setup menu, choose Set Wind .
3. The Set Wind dialog box displays. Under “Calibration,” three values appear. The
first, “Raw Reading,” shows the current wind direction in degrees, if the solar panel
faced true south. The middle, “Adjusted Reading” can be edited. The last,
“Calculated Offset” is automatically generated using the raw and adjusted values.
Calibrate your wind direction by entering a value in the Adjusted Reading that causes
the correct Calculated Offset (Raw - Adjusted = Calculated Offset). For example:
•
If the solar panel faces due north : Calculated Offset should be 180.
(Add 180 to the Raw Reading value, subtract 360 if the total is more than 360.)
• If the solar panel faces due east : Calculated Offset should be 270.
(Add 270 to the Raw Reading value, subtract 360 if the total is more than 360.)
• If the solar panel faces due west : Calculated Offset should be 90.
(Add 90 to the Raw Reading value, subtract 360 if the total is more than 360.)
94
180
274
Example of calibrating an ISS with Solar Panel facing true north.