Davis EZ-Mount Installation User Manual download pdf (Page 12)

Page 12 EZ-Mount Advanced Station

Recalibrating the Wind Vane

The wind vane is pre-calibrated as if the anemometer arm were facing west. If

you choose to mount your station in a

different

orientation—for example, in

order to tilt the EZ-Sensor Arm for maximum readings—you need to recali-

brate the wind vane. Otherwise, skip this calibration.

To recalibrate the wind vane, you will need to look at the console display. If

your EZ-Station is mounted on a roof or raised platform, you may wish to have

a friend on the ground do this for you. Or, you may wish to bring the console

onto the roof or platform with you.

1. Use the allen wrench provided to loosen the set screw on the side of the wind vane

and remove the wind vane from the shaft.

2. Press WIND on the console until a wind direction reading and the word DIRECTION

appear on the display.

3. Use a compass or local area map to determine which direction (N, S, E, W, NE, etc.)

the anemometer arm is pointing.

4. Use the wind direction chart to ﬁnd the

degree reading which corresponds to that

direction.

5. Slowly turn the wind direction shaft with your

ﬁngers. Stop turning when the console display

reaches the degree reading obtained in step 4.

6. Being careful to keep the stainless steel shaft

from turning, place the wind vane on the shaft

with the bullet-shaped nose of the vane point-

ing in the same direction as the arm. Leave

approximately a 1/16-inch (1.5-mm) gap

between the base of the wind vane and the

arm.

7. Use the allen wrench provided to tighten the set screw on the side of the wind vane.

Do not over-tighten.

8. Test your assembly by pointing the wind vane in any direction and—using the com-

pass or map as a guide—make sure the console displays the correct wind direction.

Re-adjust the wind vane if necessary.

Remove wind vane

from wind direction

shaft

Lossen set

screw

0° N

180° S

270° W90° E

45° NE315° NW

135° SE225° SW

WIND DIRECTION CHART

1 2 ... 7 8 9 10 11 12 13 14 15 16

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Davis EZ-Mount Installation User Manual Page 12

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