Instruction Manual

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Integrated Sensor Suite with

Fan-Aspirated Radiation Shield

Installation Instructions Addendum

For Vantage Pro2™ and Vantage Pro2 Plus™

The Vantage Pro2™ Integrated Sensor Suite (ISS)

with the Fan-Aspirated Radiation Shield uses a

combination of fan-aspiration and shielding to

minimize temperature measurement errors due to

the effects of solar radiation.

Fan-Aspirated ISS Addendum

Overview

This addendum provides additional information

specific to the installation and use of ISS models

containing the fan-aspirated radiation shield. It is

intended to be used in conjunction with the “Inte-

grated Sensor Suite Installation Manual.”

The table below shows the location of the information required to install and

maintain your Fan-Aspirated ISS system.

Section/Procedure

In This

Addendum

In the ISS

Installation

Manual

Tools for Setup X

Preparing the Anemometer X

Preparing the Rain Collector XX

Preparing the Radiation Shield X

Powering ISS and Testing Communications X

Powering and Testing the Fan X

Choosing a Site for the ISS X

Mounting the ISS X

Additional Mounting Options X

Fan-Aspirated Shield Maintenance X

Theory of Operation X

Fan-Aspirated Shield Troubleshooting X

Fan-Aspirated Shield Specifications X

Summary of content (8 pages)

PAGE 1
Integrated Sensor Suite with Fan-Aspirated Radiation Shield Installation Instructions Addendum For Vantage Pro2™ and Vantage Pro2 Plus™ The Vantage Pro2™ Integrated Sensor Suite (ISS) with the Fan-Aspirated Radiation Shield uses a combination of fan-aspiration and shielding to minimize temperature measurement errors due to the effects of solar radiation.
PAGE 2
Fan-Aspirated ISS Addendum Overview Components The Fan-Aspirated ISS includes these components: Rain Collector Debris Screen (Place inside cone after installation) Metric Rain Adapter Solar Panel (Wireless SIM only) Anemometer Vane SIM Housing Control Head Anemometer Base Fan Solar Panel Drip Ring ISS Base Anemometer Arm Wind Cups Anemometer Cable 40’ (12.
PAGE 3
Tools for Installation Additional Components on Vantage Pro Plus The Vantage Pro2 Plus™ includes an ultraviolet (UV) sensor and a solar radiation sensor. These two sensors are mounted next to the rain collector on your ISS. UV and Solar Sensors Sensor Mounting Shelf See the Integrated Sensor Suite Installation Manual about mounting and maintaining these sensors. Do not to touch the small white diffusers on top of the UV and solar radiation sensors. Oil from the skin reduces sensor sensitivity.
PAGE 4
Preparing the Fan-aspirated Shield for Installation 2. Carefully cut and remove the plastic tie (usually black in color) that holds the two-sided tipping bucket mechanism in place during shipping. 3. See the ISS Installation Manual for instructions on inserting the optional metric measurement adapter.
PAGE 5
Fan-Aspirated Shield Maintenance • Use only one fan battery for some overnight aspiration but with slightly higher average daytime aspiration. • Remove both batteries for maximum daytime aspiration and no nighttime aspiration. See “Replacing Fan Motor and Batteries” on page 6 for more information. Fan-Aspirated Shield Maintenance • Keep the outer surfaces clean, since the unit is less effective when the surfaces are dirty. Remove dust from the solar panel and the shield with a damp cloth.
PAGE 6
Fan-Aspirated Shield Maintenance 3. Unscrew the three threaded spacers holding the solar bracket and radiation shield together. 4. Remove the three screws from the bottom of the radiation shielding and separate the shield stack. Threaded Spacer Lock Washer Flat Washer Solar Panel Bracket Interior Maintenance Power Cable Once the shield has been disassembled, do the following to clean and maintain the interior of the shield: • Remove all debris from inside the shield and wipe the interior surfaces clean.
PAGE 7
Fan-Aspirated Shield Specifications 3. Remove the fan batteries. 4. Install new batteries (NiCad C-cells). Be sure to match the “+” sign on the battery with the “+” sign in the battery compartment. #4 Screws Battery Cover Air Flow 1.
PAGE 8
Fan-Aspirated ISS Troubleshooting If you are experiencing problems with your Fan-Aspirated ISS, first be sure to check all cable connections. If you are unable to solve the problem, please call Davis Technical Support. We’ll be glad to help. Most questions can be answered while you’re on the phone. You can also e-mail us for support, or visit our website. Sorry, we are unable to accept collect calls. Note: Please do not return items to the factory for repair without prior authorization.