Maintenance, Periodic maintenance, Cleaning – Vaisala WAV151 User Manual
Page 17: Testing proper operation, Cleaning testing proper operation, Periodic maintenance cleaning, Chapter 4
Chapter 4 ________________________________________________ Maintenance
VAISALA__________________________________________________________15
CHAPTER 4
MAINTENANCE
This chapter provides information that is needed in the basic
maintenance of the WAV151 Wind Vane.
Periodic Maintenance
Cleaning
Heavy contamination in the vane, such as bird dropplets or
ice will deteriorate the accuracy of the wind vane. Clean the
vane when necessary.
Testing Proper Operation
The sensor will hold its accuracy in all conditions for 1 year.
If the rains are mostly casual and moderate, and the
atmospheric corrosion is typical, the sensor accuracy will
remain for 2 years.
However, the ball bearings must be checked once a year and
the sensor shaft rotated manually. To do this, remove the
vane assembly. To ensure proper operation, the shaft should
spin smoothly and it should not create any detectable noises.