SETHEA - WAC155

WAC155 User Guide

Document code
M210822EN
Revision
F
Language
English (United States)
Product
WAC155
Document type
User guide

The SETHEA command configures the wind sensor heating control. Sensor heating ensures frictionless rotation of sensor bearings in temperatures below -40 °C (-40°F). Heaters are powered by a separate, external power supply. Heating is not enabled by default.

SETHEA [active] [tos] [thys] <value><cr>
active Enables the wind sensor heating function. Possible values: 0 = Disabled (default), 1 = Enabled, 2 = Forced ON
tos Control limit for heating in Celsius degrees. Range: -55 … +125 (default: 4)
thys Thermal hysteresis in Celsius degrees. Range: -55 … +125 (default: 1)
value Value for the option

If heating is enabled, it turns on when the temperature drops below TOS - THYS. Heating turns off when the temperature rises above TOS + THYS. With the default values of TOS=4 and THYS=1, heating is enabled at +3 °C and disabled at +5 °C.

CAUTION SETHEA ACTIVE 2 is for testing purposes only. Leaving forced heating on for longer periods of time may damage the heating elements of the sensors.

Example

>sethea active 1
       ACTIVE = 1
       TOS    = 4.00
       THYS   = 1.00
>