Vaisala WXT520 User's Guide download pdf (Page 32)

User’s Guide ______________________________________________________________________

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Figure 9 Heating Control

The following example shows how heating behaves as Ta starts to fall:

- When Ta falls below +4 °C, heating is enabled.

- Heating keeps Th > +4 °C until Ta < -1 °C.

- Heating keeps Th > 0 °C until Ta < -15 °C.

When the heating function is disabled the heating is off in all conditions,

see Supervisor Message on page 123.

NOTE

Snow accumulation may cause a temporary wind measurement

problem even when the heating is enabled.

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Vaisala WXT520 User's Guide Page 32