Vaisala WMS302 Podręcznik Użytkownika Pobierz pdf (Strona 171)

Chapter 6 ______________________________________________________________ Maintenance

VAISALA______________________________________________________________________ 169

0505-208

Figure 142 Replacing the PTU Module

Combined Wind Sensor

Periodic Maintenance

Testing Proper Operation

It is recommended to check the ball bearings of the anemometer and the

vane every year. If the cup wheel or the vane is not rotating smoothly or

it creates detectable noise, the bearings must be replaced.

Replacing Consumables

Only a trained technician should replace the bearings.

If your sensor includes the alignment sleeve and the factory alignment

has not been altered, you can simply remove and remount the sensor to

its place with the plastic collar without realigning.

To replace the ball bearings, do the following (the numbers refer to

Figure 143 on page 171):

1 2 ... 166 167 168 169 170 171 172 173 174 175 176 ... 261 262

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Vaisala WMS302 Podręcznik Użytkownika Strona 171