DAVIS Anemometer User Manual
Standard Anemometer
A
Installation Manual
The anemometer measures and displays wind-related conditions such as wind
speed, wind direction, wind run, wind chill, and the temperature-humiditysun-wind index.
Components
The anemometer includes the components listed below. Be sure you have all
listed components before continuing. Assess your installation and make sure
you have all necessary parts, tools, and materials pictured below before you
begin.
Wind Vane
Anemometer Arm
with 40 feet (12.2 meters)
of cable
nemometer
Base
Wind Cups
Hardware
The hardware kit contains the items
most commonly needed for the
installation of the anemometer.
Which items you use from the kit
depend on where you install your
unit. You may need to adapt or
purchase additional hardware to fit
your individual requirements.
Tools and Materials Needed
You will need the following tools
and m
aterials to install your
anemometer:
• Cable Clips or Weather-Resistant Cable Ties
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.
1
Testing the Anemometer
• Stainless Steel Hose Clamps
• Small Screwdrivers
• Adjustable Wrench
• Hand-Held Compass or Local Area Map
Testing the Anemometer
Before beginning your installation, follow the instructions below to test the
anemometer wind speed and wind direction functions.
1. Connect the anemometer cable to the appropriate connector on your junction box.
2. Push the wind cups onto the smaller of the two stainless steel shafts at the end of the arm.
3. Spin the wind cups gently. You haven’t secured them yet, and if you spin them too hard you may knock them off.
4. Check the display on your weather station to make sure you are getting a wind speed reading.
5. Grasp the upper, larger of the two stainless steel shafts at the end of the arm with your fingers and twist the shaft about 1/2 turn.
6. Check the display to make sure the wind direction reading on your display changes.
Note: The wind direction readings will not change as rapidly as you turn the shaft. The station uses a low
pass filter to smooth out the constant small shifts in wind direction and keep the direction display from
jumping about in gusty winds.
7. Disconnect the cables when you are finished testing the anemometer.
Assembling the Anemometer
Attach the wind cups to the anemometer and check the mounting base
orientation before you install it.
2
Choosing the Best Anemometer Location
Tighten set
screw with
Allen wrench
Push cups onto
stainless steel
shaft
Attaching the Wind Cups
Attaching the Wind Cups
Before installing the anemometer, attach the wind cups. Wait until you have
installed the anemometer before you attach the wind vane.
1. Push the wind cups onto the smaller of the
two stainless steel shafts.
2. Slide the wind cups as far up the shaft as possible.
3. Use the allen wrench provided to tighten the set screw on the side of the
win
d cups.
4. Spin the wind cups. If they do not spin freely
, loosen the set screw, lower
the cups slightly, then retighten the set screw.
5. Repeat Step 4 until the wind cups spin freely.
Choosing the Best Anemometer Location
Use the following guidelines to determine the best location for your
anemometer.
• Install the anemometer in a location where wind flow is unobstructed by
trees and nearby bu
• For the most accurate readings, the anemome
4 feet (1.2 m) above the roof line.
• You may do this by mounting the anemometer on a television antenna mast,
a wooden post, or
• Make sure the antenna mast or metal pipe is properly grounded. You may
to use Davis’ Grounding Kit.
want
• If you are not certain about how to ground your installation, consult a
ified professional for national and local codes.
qual
Note: If you live in an area subject to frequent thunderstorms, installing a lightning rod nearby can reduce
the risk of damage.
Orient the Wind Vane
The wind vane rotates 360° to display current and dominant wind directions
on the
compass rose of the console display. To obtain accurate readings, the
vane must be correctly oriented when mounting the anemometer outside. By
ildings.
a metal pipe.
ter should be mounted at least
3
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