Assemble the sensor in accordance with the drawing.
Fit the spider so the wind turns the rotor clockwise when viewed from
above.
The chopper disk can be fitted with any orientation as the calibration
process calculates the appropriate allowance.
Spin the shaft and watch the outer edge of the chopper disk. It must run true. Correct any perceptible error.
Put a spot of oil on the thrust bearing ball. Leave the main bearing unlubricated.
Sealing against the weather
Before mounting the sensor outside, disassemble it as necessary to apply a small amount of silicone sealant around each sensor board mounting screw where it passes through the sensor housing and under the heads of the screws which secure the bottom cap.
Painting the sensor housing
The sensor electronics will not function correctly if their
temperature
exceeds 60 degrees C. In intense sunshine, a dark coloured sensor
housing will become significantly hotter than a light coloured housing.
If the ambient temperature is likely to exceed 35 degrees C, the
exterior
surfaces of the sensor housing should be painted white.
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