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4.2.1 Standard components
Standard components are items that are included or shipped with the CSAT3BH. The following
sections describe these items.
4.2.1.1 CSAT3H heater controller box
The CSAT3H heater controller box collects temperature and relative humidity data from the
temp/RH probe (see
Temperature/relative humidity sensor and shield
(p. 5)) as well as body
temperature measurements from the sonic anemometer. These measurements are used for
determining when the heaters are turned on or off, as well as how much power should be
supplied to the heaters to prevent ice accumulation and to prevent damage to the instrument
from overheating, in the case of a fault. The CSAT3H heater controller box is shown in
(p. 5). Connectors at the bottom of the CSAT3H heater controller box are shown in
(p. 41) and described in
FIGURE 4-1. CSAT3H heater controller box
4.2.1.2 Temperature/relative humidity sensor and shield
A temperature and relative humidity sensor (shown in
(p. 6)) with a 6-plate gill
radiation shield comes with the CSAT3BH. This sensor provides important temperature and
relative humidity data that is used within the heating algorithm to determine when the heaters
are turned on or off. This sensor should be mounted in such a way that it is level with the sonic
CSAT3BH Three-Dimensional Heated Sonic Anemometer
5