Contents

Rain Collector (#6466 & 6466M)
- Note: Model number 6466 is factory-calibrated to take rain measurements in 0.01 inches. The metric version of the rain collector, number 6466M, comes factory-calibrated to take measurements in 0.2 mm.
Components
Tools and Materials Needed
- Prepare the Rain Collector
  - Tip: The rain collector is shipped with the 40 (12 m) cable coiled and exiting through a slot in the rain collector base. You may want to uncoil the cable and feed it down through the hole with a grommet installed in the base behind the tipping spoon
    - 1. Remove the cone from the base by rotating the base until the latches on the cone line up with the latch openings in the base, then lifting the cone away from the base.
    - 2. Carefully cut and remove the plastic tie which holds the tipping spoon in place during shipping.
  - CAUTION: Be careful to not accidentally cut the sensor cable.
Test the Rain Collector
- 1. Open the transmitter shelter on the sensor suite. Remove the foam insert from the cable port in the lower right corner and feed the rain collector cable up through the opening. Plug the cable into the appropriate connector in the sensor interface ...
- 2. Press the RAINDAY button on your console to display rainfall.
- 3. While watching the display on your console to see if it changes, slowly tip the spoon until it drops and comes back up. Each tip indicates 0.01" or 0.2 mm of rain. (It may take up to a minute for the first tip to register at the console.) If the d...
- 4. When you have finished testing, separate the cone from the base and disconnect the rain collector cable from the sensor interface in the transmitter shelter.
- Install the Rain Collector
Choose a Location
- Note: Climbing on your roof may be hazardous. If you are uneasy about installing your unit please have a qualified professional complete the installation. Davis specifically disclaims any liability for injury or loss resulting from the installation o...
- Installing the Rain Collector on a Post or Vertical Surface
  - 1. With a 3/16" (5 mm) drill bit, drill two holes approximately 21/8" (54 mm) apart. Use the metal backing plate as a guide when marking the holes and a carpenters level to ensure the holes are level.
  - 2. Remove the rain collector cone if it is installed.
  - 3. Insert the 1/4" x 3" lag screws through the metal backing plate and the holes in the mounting base into the post. Make sure the base is level by checking the built-in bubble level.
  - 4. Tighten the lag screws using an adjustable wrench or 7/16" (11 mm) wrench.
- Installing the Rain Collector on a Pole
Accessories for Pole Mounting
General Guidelines for Installing on a Pole
- 1. While holding the mounting base against the pole, place the two ends of a U-bolt around the pole and through the two holes in the base.
- 2. Slide the metal backing plate over the bolt ends as they stick out toward the rain collector cone. Secure the backing plate with a washer, a lock washer, and a hex nut on each of the bolt ends. Adjust the height of the rain collector, then tighten...
- Finishing Steps
  - 1. Open the transmitter shelter on the sensor suite. Remove the foam insert from the cable port in the lower right corner and feed the rain collector cable up through the opening. Plug the cable to the receptacle in the transmitter labeled RAIN. Repl...
  - 2. To be certain the rain collector is functioning properly after installation, retest the unit. See Test the Rain Collector on page 3.
  - 3. Place the cone back onto the base by putting the latches on the cone into the latch openings in the base and rotating the cone clockwise until the latches lock into place. As you reattach the cone, make sure to run the cable to the cable slo...
  - 4. Place the debris screen, pointed end up, into the cone. Align the locking grooves with the locks inside the cone and turn to lock the screen in place. If bird nesting is a problem, you can place a spike in the hole on top of the debris screen.
  - 5. To use bird spikes, insert one spike into each socket around the rim of the cone. The sockets are tapered: push firmly or tap lightly with a hammer for a more secure fit. Be careful; bird spikes may be sharp.
  - Note: If you choose not to install the bird spikes, we recommend that you keep the packet of spikes in case birds become a problem in the future.
    - 6. To prevent fraying or cutting of the cable where it is exposed to weather, it is important that you secure it so it doesnt whip about in the wind.
  - Extending Cable Runs
- Maintaining the Rain Collector
  - 1. Disconnect the rain collector cable from the sensor interface in the transmitter shelter.
  - 2. Separate the cone from the base.
  - 3. Use a soft, damp cloth to clean pollen, dirt, and other debris from the cone, drain screens, and spoon.
  - 4. Use a pipe cleaner to clear the funnel hole in the cone and the drain screens in the base. When all parts are clean, rinse with clear water.
  - 5. Reattach the cone and replace the debris screen. Reconnect the rain collector cable to the sensor interface.
- Troubleshooting Guide
Contacting Davis Technical Support
- Note: Please do not return items to the factory for repair without prior authorization.
- Specifications
  - Sensor Type Tipping spoon with magnetic switch
  - Output Contact closure
  - Attached Cable 40 (12 m), 4-conductor, 26 AWG
  - Connector Modular connector (RJ-11)
  - Recommended Max.Cable Length 900 (270 m)
  - Housing Material UV-stabilized ABS plastic
    - Dimensions with base, no spikes 9.25 wide x 10.25 high x 11 deep (23.5 x 26 x 28 cm)
    - Collection Area 33.2 in2 (214 cm2)
  - Range
    - Daily Rainfall 0.00 to 99.99 (0.0 mm to 999.8 mm)
    - Total Rainfall 0.00 to 199.99 (0.0 mm to 6553 mm)
  - Accuracy For rain rates up to 2"/hr (50 mm/hr): 4% of total or +0.01 (0.2mm) (0.01" = one tip of the bucket) whichever is greater.
  - Update Interval 20 - 24 seconds
  - Input/Output Connections (See the label on the side of the tipping spoon to verify version)
  - Version A Version B
  - Red Switch terminal Black Switch terminal
  - Green & Yellow Switch terminal Red Switch terminal

Davis 6466 User Manual

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Davis 6466 Rain Collector Specification

The Davis 6466 Rain Collector is a precision instrument designed for accurate measurement of rainfall in various environments. This rain collector is engineered with a self-emptying tipping bucket mechanism that provides reliable data capture, ensuring precision with each measurement. Constructed from UV-resistant materials, the Davis 6466 is built to withstand harsh weather conditions, making it ideal for both residential and professional meteorological applications. It features a robust housing that protects the internal components from debris and insects, ensuring uninterrupted operation. The collector offers a measurement resolution of 0.01 inches (0.2 mm) per tip, which is suitable for detailed analysis and weather monitoring.

Installation is straightforward, with compatibility for mounting on a range of surfaces, including rooftops and poles, which makes it versatile for different environments. The device is designed to integrate seamlessly with compatible Davis weather stations, providing comprehensive data collection and analysis capabilities. Maintenance is minimized due to its durable design and efficient operation, with easy access to the internal components for cleaning when necessary. The Davis 6466 Rain Collector is an essential tool for anyone requiring precise and reliable rainfall data, supported by Davis's reputation for quality and innovation in meteorological instrumentation.

Davis 6466 Rain Collector F.A.Q.

How do I install the Davis 6466 Rain Collector?

To install the Davis 6466 Rain Collector, select a level surface away from obstructions. Securely mount the collector using the provided screws, ensuring it is level for accurate readings. Connect it to your weather station as per the instructions in the user manual.

What maintenance does the Davis 6466 Rain Collector require?

Regular maintenance includes cleaning the tipping bucket and checking for debris in the funnel. Inspect the collector periodically for any physical damage or blockages and ensure the mounting remains level.

How can I troubleshoot inaccurate rainfall measurements?

Ensure that the collector is level and free from obstructions. Check the tipping bucket for debris or mechanical issues. Verify the connection to the weather station, and recalibrate if necessary according to the manual.

Why is my Davis 6466 Rain Collector not transmitting data?

Check the power supply and connections. Ensure the wireless transmitter has a clear path to the receiver. Replace batteries if needed and confirm the station's frequency settings are correct.

Can the Davis 6466 Rain Collector be used in freezing conditions?

The collector is not designed for freezing conditions, as ice can block the funnel and affect measurements. Consider using a heater accessory if you need to measure precipitation in freezing temperatures.

How do I clean the Davis 6466 Rain Collector?

Remove the funnel and gently clean it with mild soap and water. Clean the tipping bucket with a soft brush to remove any dirt or debris. Rinse all parts thoroughly and reassemble once dry.

What should I do if the tipping bucket is stuck?

Inspect the tipping bucket for debris or obstructions. Clean it carefully and ensure it moves freely. Check for any mechanical wear or damage that might impede its motion.

How do I calibrate the Davis 6466 Rain Collector?

To calibrate, follow the steps in the user manual. This often involves measuring a known quantity of water and adjusting the collector's settings to ensure the tipping bucket registers the correct amount.

What are the installation height recommendations for the Davis 6466 Rain Collector?

Install the collector at a height that minimizes splash and wind effects, typically 2-6 feet above ground. Ensure there are no nearby obstructions that could block rainfall.

Can I connect the Davis 6466 Rain Collector to my existing weather station?

Yes, the Davis 6466 can be connected to compatible weather stations. Refer to your weather station's compatibility guide and follow the connection instructions provided in the manual.