Campbell Scientific RAWS-F Remote Automated Weather Station for Fire Weather - Manual (Page 22)

RAWS-F Remote Automated Weather Station for Fire Weather
4.5.1.2 Wiring
The 034B-LQ attaches to the connector labeled WS/WD; this connector is
color coded red. The sensor is internally wired from the RAWS connector
panel to the CR1000.
TABLE 4-4. WS/WD Connector (color coded red)
Connector Pin Description CR1000 Terminal
A Sensor Ground
B Wind Direction Excitation VX2
C Wind Direction Signal 2H
D Power Ground G
E +12 V Power 12V
F Wind Speed Signal P1
4.5.1.3 Maintenance
The wind vane tail must be attached to the hub. Maintain the tail assembly
with the tail vertical. Extra labels are included with the wind sensor to recover
the holes if the sensor has to be disassembled for maintenance. The set screw
holes must be covered with these labels to prevent corrosion and ensure the
warranty. Verify free movement of the cup anemometer and wind vane.
4.5.1.4 Calibration
Recalibrate the wind sensor annually. Obtain an RMA number before
returning this sensor to Campbell Scientific for recalibration.
4.5.1.5 Troubleshooting
If a problem is suspected, check the sensor cable. Disconnect the connector
and look for damaged pins. Verify free movement of the cup anemometer and
wind vane. Try connecting a substitute sensor. Obtain an RMA number before
returning this sensor to Campbell Scientific for repair.
4.5.2 2-D WindSonic (optional)
4.5.2.1 General Description
The Gill Instruments 2-D Sonic Wind Sensor (pn WindSonic4-QD) shown in
FIGURE 4-5 is an ultrasonic anemometer for measuring wind direction and
wind speed. It uses two pairs of orthogonally oriented transducers to sense the
horizontal wind. The transducers bounce the ultrasonic signal from a hood,
minimizing the effects of transducer shadowing and flow distortion. The 2-D
Sonic Wind Sensor makes wind measurements at a frequency of 1 Hz and
outputs a SDI-12 signal to the datalogger.
14