Product manual

RAWS-P Remote Automated Weather Station
3.6 Barometric Pressure
The barometric pressure sensor is mounted to the back plate inside the RAWS
environmental enclosure.
3.7 Fuel Moisture and Fuel Temperature
The fuel moisture and fuel temperature sensor should be left outside at the field
site continually exposed to the same conditions as forest fuels. The fuel
moisture and fuel temperature dowel rods absorb and desorb moisture from its
surroundings. Install the probes horizontally on the mounting stake and face
the sensors south (northern hemisphere) above a representative forest floor duff
layer. Place the sensor away from foot traffic areas.
4. Sensor Wiring and Troubleshooting
4.1 Air Temperature and Relative Humidity
4.1.1 General Description, Air Temperature and Relative Humidity (part
#HC2S3-L-RQ)
The HC2S3 Rotronic’s HydroClip2 Air Temperature and Relative Humidity
Probe has a -RQ cable termination option that allows it to connect to the
RAWS-P. This probe contains a Platinum Resistance Thermometer (PRT) and
a Rontronic’s IN1 capacitive relative humidity sensor. Voltage is output for
each of the probe’s sensors.
4.1.2 Wiring, Air Temperature and Relative Humidity (part #HC2S3-L-RQ)
The temp/RH sensor is connected to the RAWS connector panel “TEMP/RH”
connector COLOR CODED ORANGE. This sensor is internally wired from
the RAWS connector panel to the CR1000 datalogger.
Connector Panel “TEMP/RH” connector COLOR CODED ORANGE
Connector Pin A Temp Hi to CR1000 1L
Connector Pin B Sensor excitation to CR1000 EX1
Connector Pin C Sensor signal Lo/AG to CR1000 AG
Connector Pin D Power ground to CR1000 Ground
Connector Pin E RH signal to CR1000 1H
Connector Pin F SW_12V to CR1000 SW_12V
4.1.3 Troubleshooting, Air Temperature and Relative Humidity (part
#HC2S3-L-RQ)
Check the sensor cable. Disconnect the connector and look for damaged pins.
Verify that the sensor body is connected to the sensor head. Under the filter
assembly, verify the sensors are connected but not touching. Try connecting a
substitute sensor. Obtain a Return Material Authorization (RMA) number
before returning this sensor to Campbell Scientific for repair.
Consult the HC2S3-L manual for more information.
NOTE
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