Campbell WindSonic, Product Manual

Page: 14 / 30

8.3 Sensor output 13
8.4 Long cables 14
8.1 Sensor configuration
To mimic a mechanical anemometer, the WindSonic1 output frequency must match the data
logger scan frequency. The factory setting for the WindSonic1 is 1 Hz, which is 1 output per
second.
The data output frequency of the WindSonic1 can be set to five discrete values (see Table 8-1 (p.
11)) using Gill’s computer support software and the RS-232 WindSonic to computer cable.
Table 8-1: WindSonic1 output frequencies
Output frequency (Hz) Seconds per output (s)
4 0.25
2 0.5
1 1
0.5 2
0.25 4
8.2 Campbell Scientific factory default
settings
Table 8-3 (p. 13) provides the factory-default settings. The default settings for the WindSonic1
were changed in February 2013 to improve operation in cold temperatures. Sensors with the new
settings can be identified by a small white painted dot next to the connector on the underside of
the sensor (
FIGURE 8-1 (p. 13)). New sensor cables include both a yellow and white heat shrink
label; older sensor cables had two white heat shrink labels. Because cables are interchangeable
between new and old sensors, the best check is to look for the painted dot.
Table 8-2: WindSonic1 factory-default settings
Setting description Setting Comments
Continuous polar wind M2
Wind speed in m/s U1
Field formatted, comma separated values O1 Changed in February 2013
WindSonic1 Two-Dimensional Sonic Anemometer 11