EU/UK Version 18 WTH600-E-en-GB_v1.0 4/18
19. MOON PHASES
In the Northern hemisphere, the moon waxes (the part of the moon we see that glows after the
New Moon) from the right. Hence, the sun-lit area of the moon moves from right to left in the
Northern Hemisphere, while in the Southern Hemisphere, it moves from left to right. Below are
two tables illustrating how the moon phase will appear on the main unit.
Northern hemisphere:
Southern hemisphere:
20. CLEANING
Cleaning the Rain Collector
1. Rotate the rain collector 30° counter-clockwise.
2. Gently remove the rain collector.
3. Clean and remove debris.
4. Allow components to dry before re-assembly.
Cleaning the Thermo-Hygro sensor
1. Unscrew the 2 screws at the bottom of the radiation shield.
2. Gently pull out the shield.
3. Remove carefully any dirt or insects inside the sensor casing (Do
not let the sensors inside get wet).
4. Clean the shield with water and remove any dirt.
5. Re-assemble after fully cleaning and drying.
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