DAVIS 6322C Appendices, Appendix A Re-orientingthe Wind Vane, To re-orientthe wind vane

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Appendices

Appendices

Appendix A: Re-orienting the Wind Vane

The Vantage Pro2 station is configured to register wind direction correctly if the anemometer points to true north. If the anemometer shaft cannot be mounted to point to true north, use the following instructions to correct the wind vane orientation.

Do not rely on a compass unless it is properly calibrated. In North America there can be up to 15° variation between true north and a raw compass reading.

Correct the wind direction readings by calibrating the wind direction in the Van- tage Pro2 console. See the Vantage Pro2 Console Manual for information.

To orient the wind vane accurately, look at the console display. Have another per- son watch the console display while orienting the wind vane.

Also, re-orient the wind vane before the anemometer is installed if the direction in which the anemometer will be installed is already known.

To re-orient the wind vane:

1.Loosen the wind vane set screw.

2.Pull the vane directly up and off the steel shaft on which it turns.

3.Press WIND on the console to display current wind direction in degrees.

4.Use a reliable map, properly calibrated compass or a landmark to determine which direction is true south.

5.Slowly turn the stainless-steel wind direction shaft with your fingers. Stop turning when the display reaches 180° obtained in step 3.

Wind Direction Chart

6.Allow the wind direction display approximately 5 seconds to stabilize after the shaft is turned. Turn the shaft, wait, and turn it again until 180° is displayed on the con- sole.

7.Being careful to keep the stainless-steel shaft from turning, place the wind vane on top of shaft with the vane’s nose pointing south.

8.Slide the wind vane down the shaft as far as it will go.

9.Use the Allen wrench provided to tighten the set screw on the side of the wind vane.

10.Test the anemometer by pointing the wind vane in any direction and making sure the console displays the correct wind direction. Remove and re-adjust the vane if it does not. Allow the wind direction display approximately 5 seconds to stabilize after turning the shaft.

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Contents Integrated Sensor Suite Installation Manual Contents Introduction Included Components and HardwareComponents Preparing the ISS for Installation Tools for SetupHardware Assemble the Anemometer Check SIM Sensor Connections Check the Factory Installed Sensor Connections Open the SIM BoxConnect the Anemometer Cable to the SIM Cabled ISS Assembly Applying PowerVerifying Communication with the Console Troubleshooting Cabled ISS Communication Troubleshooting Cabled ISS CommunicationChecking Transmitter ID Wireless ISS AssemblyApplying Power to a Wireless ISS to eight different wireless stations. The defaultTroubleshooting Wireless ISS Reception Verifying Data from the ISS SensorsVerifying Data from the ISS Sensors Optional Changing ISS Transmitter ID Using Multiple Transmitting Stations Preparing the ISS for Installation Close the SIM BoxPrepare the Rain Collector Optional Insert the Metric Measurement Adapter Locating the ISS and Anemometer General ISS Siting GuidelinesAnemometer Siting Guidelines Locating the ISS and AnemometerOptional Wireless Transmission Considerations Optional Anemometer Cable Length ConsiderationsTesting Wireless Transmission at ISS Location ping tape around both the cables and the pole Installing the ISSGeneral ISS Installation Guidelines Orient the Wind VaneInstallation Instructions Installing the ISS on a Flat SurfaceInstalling the ISS on a Pole Accessories for Pole MountingGeneral Guidelines for Installing on a Pole Guidelines for Installing the ISS on a Pole Option 1 Installing ISS and Anemometer TogetherOption 2 Installing ISS Only Extending Wireless Transmission Range Finishing the InstallationAdditional Mounting Options Level the Solar and UV SensorsOptional Wireless Stations Extending the Console Cable Cabled ISS OnlyRelocating the Anemometer 4 Screw 3 Lock Washer Flat Washer Maintenance and TroubleshootingCleaning the Radiation Shield Rain Collector BaseMost Common Rain Collector Problem TroubleshootingCleaning the Rain Collector Cone Most Common Anemometer ProblemsContacting Davis Instruments Appendices Appendix A Re-orientingthe Wind VaneTo re-orientthe wind vane ISS Weather Variable Update Intervals Appendix B SpecificationsWireless ISS Cabled ISSINTERFACE SIM Board Display and ContentsSENSOR MODULE