Contents

Sonic Anemometer Product number 6415
- Tools and Materials Needed
  - Note: Make sure the clips or ties you use to secure the anemometer cable have screw holes or other means for mounting the cable. Do not use metal staples to secure the cables.
- Components
- Choose the Mounting Location
  - Tip: Mount the anemometer where it will receive direct sunlight for several hours each day.
    - Note: 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).
- Connect the Battery
  - 1. Connect the two battery cables. (See illustration on page 2.)
  - 2. Push the connected cables into the tube.
  - 3. Push the cap into the end of the tube to seal it.
  - 4. Mount the anemometer in sunlight within 10 days of connecting the battery.
  - Note: The anemometer requires sunlight on the solar panel before it will turn on, even when the battery is fully charged.
- Mount the Sonic Anemometer
  - 1. Place the U-bolt around the pole and slide the brackets over the threaded ends with the flat part of the bracket facing outward.
  - 2. Slide the U-blot ends through the anemometers square base and loosely install the hex nuts and bolts with a 10 mm wrench.
  - 3. When the anemometer is in the desired place on the pole, tighten the nuts.
  - Align the Sensor for Correct Wind Direction
    - 1. Loosen the U-bolts slightly so the tube can be turned.
    - 2. Using a compass, align this mark to True North by turning the tube.
    - 3. Tighten the U-bolts.
  - Note: For more precise directional installation, you may use the included aligning tool.
    - Connect to the Vantage Pro2 Sensor Suite
      - 1. Open the transmitter shelter and disconnect the solar cable so that you can remove the cover.
      - 2. Pull the foam insert out of the cable access port and set the foam aside.
      - 3. Insert the Sonic Anemometer cable end into the cable access port from beneath the box.
      - 4. Firmly insert the RJ connector into the socket labeled WIND.
      - 5. Firmly insert the foam in between the cables and at the top of the cable access port, taking care to ensure that the foam seals the access port entirely, leaving no holes or gaps large enough for weather or insects. You may have to stack the cable...
    - Secure the Cable
  - CAUTION: Do not use metal staples to secure cables. Metal staples can cut the cables.
- Configure your Console
  - 1. On your Vantage Pro 2 console, enter the Setup Mode by pressing DONE and the - key at the same time.
  - 2. Press DONE repeatedly to scroll through the screens until you come to the Wind Cup Size screen.
  - 3. Press the + and - keys to toggle the sizes until OTHER appears.
  - 4. Press and hold the DONE key to exit Setup Mode and return to the Current Weather Screen.
- Start receiving data
- Maintenance
  - CAUTION: DO NOT use alcohol-based cleaning products.
- Battery Safety Notes
- Troubleshooting
  - The battery is fully charged but the anemometer will not turn on.
  - Wind speed reads 0 all the time or intermittently or wind direction reading is dashed out.
  - Wind speed reading seems too high or too low.
  - Can I calibrate my anemometer?
- Contacting Davis Instruments Technical Support
- Specifications
  - General
  - Operating Temperature +5F to +131F (15C to +55C)
  - Attached Cable Length 40' (12 m)
  - Cable Type 4-conductor, 26 AWG
  - Connector Modular connector (RJ-11)
  - Maximum Cable Length 250 (76 m)
  - Sensor Output
  - Wind Direction
  - Display Resolution 16 points (22.5) on compass rose, 1 in numeric display
  - Accuracy 2 degrees at wind speeds >7 mph (3 m/s); 4 degrees at wind speeds < 7 mph (3 m/s)
  - Wind Speed
  - Resolution and Units Measured in 1 mph. Other units are converted from mph and rounded to nearest 1 km/h, 0.1 m/s, or 1 knot
  - Range 0 to 89 mph, 0 to 78 knots, 0 to 40 m/s, 0 to 144 km/h
  - Accuracy 2 mph (2 kts, 3 km/h, 1 m/s) or 4%, whichever is greater
  - Input/Output Connections
  - Black Wind speed contact closure to ground
  - Red Ground
  - Green Wind direction pot wiper (20K potentiometer)
  - Yellow Pot supply voltage
  - Wind Speed Translation Formula V = P(2.25/T) (V = speed in mph, P = no. of pulses per sample period, T = sample period in seconds))
  - Wind Direction Translation Variable resistance 0 - 20K; 10K = south, 180

Davis 6415 Installation Manual

Pages 12

Year 0

Language(s)

of 12

Davis 6415 Anemometer Specification

The Davis 6415 Anemometer is a high-precision instrument designed for accurate wind measurement. It is engineered to deliver reliable data on wind speed and direction, making it ideal for both meteorological applications and personal weather monitoring. The anemometer features a durable construction with corrosion-resistant materials, ensuring longevity even in harsh weather conditions. The wind cups are aerodynamically designed to initiate movement at wind speeds as low as 2 mph, while the vane provides accurate directional data. The 6415 model integrates seamlessly with Davis weather stations, offering easy installation and compatibility. It transmits data wirelessly to a console or data logger, allowing for real-time monitoring and analysis. The device operates within a temperature range of -40 to 140 degrees Fahrenheit, ensuring performance in extreme environments. Its operational range extends up to 1,000 feet line-of-sight, providing flexibility in placement. The anemometer is powered by a solar panel with a lithium battery backup, ensuring continuous operation without frequent maintenance. The Davis 6415 Anemometer is engineered for precision with a wind speed accuracy of ±2 mph or ±5% and a direction accuracy of ±7 degrees. Its performance and durability make it an excellent choice for both amateur weather enthusiasts and professional meteorologists seeking reliable wind data.

Davis 6415 Anemometer F.A.Q.

How do I install the Davis 6415 Anemometer on a mast?

To install the Davis 6415 Anemometer on a mast, first ensure the mast is securely mounted. Attach the anemometer using the provided mounting hardware, ensuring it is level and oriented correctly. Make sure it is at least 7 feet above any obstructions for accurate readings.

What is the best way to calibrate the Davis 6415 Anemometer?

The Davis 6415 Anemometer is factory-calibrated and does not require user calibration. However, you can verify its accuracy by comparing it with a known standard or another calibrated anemometer.

How can I troubleshoot if my Davis 6415 Anemometer is not displaying wind speed?

Check all cable connections for tightness and signs of damage. Ensure that the anemometer is free from obstructions. Verify that the anemometer cups are not blocked and can rotate freely. Also, check the console or receiver for proper configuration.

What maintenance does the Davis 6415 Anemometer require?

Regular maintenance includes checking for debris in the anemometer cups and ensuring they spin freely. Inspect the cable for wear and tear, and clean the unit with a damp cloth as needed.

How do I replace the wind cups on the Davis 6415 Anemometer?

To replace the wind cups, gently pull them off the shaft. Align the new cups with the shaft and press them firmly into place until they click securely.

What should I do if the anemometer is providing erratic wind direction readings?

Ensure the vane is not obstructed or damaged. Check that the anemometer is securely mounted and not wobbling. Inspect the cable and connections for any signs of corrosion or damage.

Can the Davis 6415 Anemometer be connected to a wireless network?

The Davis 6415 Anemometer itself is not wireless but can be connected to a Davis Vantage Pro2 or other compatible weather stations that may offer wireless capabilities.

How should I clean the Davis 6415 Anemometer?

Use a soft, damp cloth to wipe the anemometer. Avoid using harsh chemicals or high-pressure water, which could damage the electronics. Ensure the cups and vane are free of debris.

What is the typical lifespan of a Davis 6415 Anemometer?

With proper maintenance and care, the Davis 6415 Anemometer can last several years. Regular inspections and prompt repairs of any issues can extend its lifespan.

How do I integrate the Davis 6415 Anemometer with a data logger?

Connect the anemometer to a compatible weather station or interface that supports data logging. Follow the manufacturer's instructions to configure the data logger to record wind data.