DAVIS Vantage Pro2 ISS Installation Manual download pdf (Page 13)

Installing the ISS: General ISS Installation Guidelines

Installing the ISS

The anemometer and the main part of the ISS can be installed either together as a single

unit on a pole, or apart from each other. The main part of the ISS includes the rain

collector, the temperature and humidity sensors, the radiation shield, and the SIM

housing. Use the U-bolts to install the ISS and anemometer the together or separately on

a pole. Use the lag screws to install them separately on a flat, vertical surface.

The anemometer comes with a 40' (12 m) cable so you can flexibly configure your

system to monitor wind conditions. For example, you could mount the anemometer at the

highest point of a roof, then place the main part of the ISS on a fence closer to ground

level.

General ISS Installation Guidelines

• Install the ISS as level as possible to ensure accurate rain measurements. Use a

bubble level or carpenter’s level to make sure the ISS is level

• In the Northern Hemisphere, the solar panel should face south for maximum sun

exposure.

• In the Southern Hemisphere aim the solar panel North for maximum sun expo-

sure.

Either install the ISS and anemometer separately, each facing North, or mount

them as a single unit with solar panel facing north and the wind vane re-oriented

to the south. See “Appendix C: Re-orienting the Wind Vane”

• If you are near the equator aim the solar panel east or west. Pick the direction that

receives the maximum sunshine at your location.

Guidelines for Securing Cables

• To prevent fraying or cutting of cables, secure them

so they will not whip about in the wind.

• Secure a cable to a metal pole using cable ties or by

wrapping electrical tape around them both.

• Place clips or ties approximately every 3 – 5' (1 –

1.6 m).

• Mounting clips, cable ties or additional hardware not included with your station

can be easily obtained at a hardware or electronics store.

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.

Orient the Wind Vane

The wind vane rotates 360° to display current and dominant wind directions on the

compass rose of the display. To obtain accurate readings, the vane must be correctly

oriented when you mount the anemometer outside. By default, the wind vane on the

anemometer detects the correct wind direction if the anemometer arm points North.

You can ensure correct orientation of the wind vane in one of two ways:

1. Mount the anemometer so that the arm points north.

The wind vane will be ready for use immediately if you do this.

2. If you mount your anemometer so that it does not aim North, you will need to remove

the wind vane and re-attach it aiming toward the preferred direction.

Refer to the instructions in “Appendix C: Re-orienting the Wind Vane” on page 21.

Cable Clip

Cable Tie

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DAVIS Vantage Pro2 ISS Installation Manual Page 13

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