Heating (optional) – Orion Car Audio 420 User Manual
Page 21
Orion 420 Weather Station
21
________________________________________________________________________
Columbia Weather Systems, Inc.
Heating (Optional)
Heating elements located below the precipitation sensor and inside the
wind transducers keeps the precipitation and wind sensors free from
snow and ice. A heating temperature sensor (T
h
) underneath the
precipitation sensor controls the heating.
Three fixed temperature limits, namely +3 °C, -2 °C, and -4 °C (+37 °F,
+38 °F, +25 °F) control the heating power as follows:
T
h
> +3 °C
heating is off
-2 °C < T
h
< +3 °C
50% heating power
-4 °C < T
h
< -2 °C
100% heating power
T
h
< -4 °C
50% heating power