Contents

Leaf Wetness Sensor (#6420) User Guide
Components
Tools and Materials Needed
Installing the Sensor in a Wireless Leaf & Soil Moisture/Temperature Station
- 1. Run the sensor cable up through the grommets on the bottom of the station housing.
- 2. Insert the sensor cable modular plug into the Leaf 1 or Leaf 2 modular connector.
- Connecting Leaf Wetness Sensors
  - Finish the Sensor Connections
- Securing Sensor Cables in the Station
  - 1. Secure sensor cables to the cable tie mounts located next to the grommets.
  - Installing the Sensor in an EnviroMonitor Node
    - 1. On your smart-phone, open the EnviroMonitor app and select the Node to which you are connecting the sensor. Tap Add Sensor. From the menu, first select the sensor type (Leaf Wetness), then select Davis Instruments.
    - 2. For simplified wiring, use a Davis RJ Adapter, product number 6860. Or, you can remove the plug and strip the wires, then follow the wiring diagram to correctly wire the sensor into one of the 6-wire sensor connectors.
    - 3. Insert the 6-wire sensor connector into the sensor junction indicated by the app.
    - 4. Run the sensor cable down and our of the Node through the bottom. Make sure it will be enclosed by foam when the Node door is closed.
Mount the Sensor
- Mounting the Sensor On a Wooden Surface
- Mounting the Sensor on a Pole
Secure the cables
- Note: Do not use metal staples or a staple gun to secure cables. Metal staples especially when installed with a staple gun have a tendency to cut the cables.
Contacting Technical Support
- Note: Please do not return items to the factory for repair without prior authorization.

Davis 6420 User Guide

Pages 4

Year 0

Language(s)

of 4

Davis 6420 Sensor Specification

The Davis 6420 Sensor is a state-of-the-art meteorological device designed for accurate and reliable environmental monitoring. This sensor is part of the advanced Vantage Pro2 weather station series, renowned for precision and durability in diverse weather conditions. It integrates multiple sensing capabilities, including temperature, humidity, and solar radiation, providing comprehensive data for both amateur weather enthusiasts and professional meteorologists. The sensor operates on a frequency of 915 MHz for wireless data transmission, ensuring a robust communication range of up to 1,000 feet in open areas.

The Davis 6420 is constructed with UV-stabilized materials, ensuring long-term resilience against harsh environmental factors. Its temperature sensor offers a measurement range from -40 to 150 degrees Fahrenheit, with an accuracy of ±1 degree, while the humidity sensor ranges from 0 to 100 percent with an accuracy of ±3 percent. The solar radiation sensor measures up to 1800 W/m², vital for calculating evapotranspiration and other solar-dependent applications.

This sensor features a fully integrated design, simplifying installation and maintenance. It is powered by a solar panel, complemented by a lithium battery backup, ensuring continuous operation even during extended periods of low sunlight. The device is compatible with WeatherLink software, allowing users to access, analyze, and share data seamlessly through various platforms. Additionally, the Davis 6420 Sensor supports expansion with additional sensors for wind, rain, and other environmental parameters, making it a versatile solution for comprehensive weather monitoring needs. Its robust construction and precise measurement capabilities make the Davis 6420 an ideal choice for users seeking reliable weather data in both residential and professional settings.

Davis 6420 Sensor F.A.Q.

How do I install the Davis 6420 Sensor correctly?

To install the Davis 6420 Sensor, first mount the sensor in an open area away from obstructions. Connect the sensor to your Davis weather station console according to the user manual, ensuring all cables are securely attached.

What should I do if my Davis 6420 Sensor is not transmitting data?

If the sensor is not transmitting data, check the battery and replace if necessary. Ensure the sensor is within the transmission range of the console and that there are no obstacles blocking the signal.

How often should I calibrate my Davis 6420 Sensor?

Calibration is recommended every 6 to 12 months to ensure optimal accuracy. Follow the calibration instructions provided in the user manual or consult a professional.

What maintenance is required for the Davis 6420 Sensor?

Regularly clean the sensor to remove debris and ensure it is functioning correctly. Check the battery and replace it annually or as needed. Inspect for any physical damage or wear.

How can I extend the battery life of my Davis 6420 Sensor?

To extend battery life, ensure the sensor is placed in optimal conditions, away from extreme temperatures. Use high-quality batteries and deactivate unnecessary features to conserve power.

What should I do if the readings from my Davis 6420 Sensor seem inaccurate?

Check for obstructions or environmental factors affecting the sensor. Recalibrate the sensor if necessary and ensure it is placed according to the manufacturer's guidelines.

Can I use the Davis 6420 Sensor with other weather stations?

The Davis 6420 Sensor is designed to work with compatible Davis weather stations. Check the specifications to ensure compatibility with other models or brands.

How do I update the firmware of my Davis 6420 Sensor?

Firmware updates are typically done via the weather station console. Consult the Davis website or user manual for specific instructions on downloading and installing updates.

What environmental conditions can the Davis 6420 Sensor withstand?

The Davis 6420 Sensor is built to withstand a range of weather conditions, including rain, wind, and UV exposure. However, it should not be exposed to extreme temperatures for prolonged periods.

How do I troubleshoot connectivity issues with my Davis 6420 Sensor?

Ensure the sensor is within range of the console and that there are no obstructions. Check for any interference from other electronic devices and try resetting both the sensor and console.