Campbell Scientific RAWS-F Remote Automated Weather Station for Fire Weather - Manual (Page 25)

RAWS-F Remote Automated Weather Station for Fire Weather
4.6.3 Maintenance
Since the CS100 is semi-sealed, minimum maintenance is required. Change
the RAWS enclosure desiccant regularly; failure to protect the CS100 sensor
from condensation may result in permanent damage.
The CS100 is sensitive to static when the back plate is
removed. To avoid damage, take adequate anti-static
measures when handling this sensor. CAUTION
4.6.4 Calibration
Recalibrate the CS100 Barometric Pressure Sensor annually. Obtain an RMA
number before returning this sensor to Campbell Scientific for recalibration.
4.6.5 Troubleshooting
If a problem is suspected, verify the sensor wires are securely fastened to the
CS100 connector and the CR1000 printed circuit board wiring panel. Use a
DVM to check the sensor output voltage on the CR1000 printed circuit board
wiring panel (0 to 2.5 Vdc) between terminals 5H and
.
For the DVM test, “temporarily” move the green wire from “C4”
to “5V” terminal. No voltage indicates a problem with the sensor
or a bad sensor cable connection. Try connecting a substitute
sensor. NOTE
Obtain an RMA number before returning this sensor to Campbell Scientific for
repair.
4.7 Fuel Moisture and Fuel Temperature (optional)
4.7.1 General Description
The CS516-LQ Fuel Moisture/Fuel Temperature Sensor consists of the CS506
Fuel Moisture Probe, 26601 Fuel Moisture Stick, CS205 Fuel Temperature
Stick, and 107 thermistor mounted on the 26817 Mounting Stake (see FIGURE
4-7)
. The fuel moisture probe provides the moisture content of a standard 10-
hour fuel moisture dowel. This moisture represents the moisture content of
small-diameter (10-hour time lag) forest fuels. The fuel temperature probe
consists of a Ponderosa pine dowel with a bored hole and a 107 Temperature
Probe inserted into the dowel. The CS205 mounts on the mounting stake with
the CS506.
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