Specifications

RAWS-F Remote Automated Weather Station for Fire Weather

4.3.2 Wiring, Rain Gage (part #TE525-QD)

The rain gage is connected to the RAWS connector panel “PRECIP” connector

COLOR CODED BLUE. This sensor is internally wired from the RAWS

connector panel to the CR1000 datalogger.

Connector Panel “PRECIP” connector COLOR CODED BLUE

Connector Pin A Tipping Bucket to CR1000 C6

Connector Pin B 5V to CR1000 5V

Connector Pin C Ground to CR1000 Ground

4.3.3 Maintenance, Rain Gage (part #TE525-QD)

The rain gage funnel and bucket mechanism must be kept clean. Routinely

check for and remove any foreign material, dust, insects, etc.

4.3.4 Calibration, Rain Gage (part #TE525-QD)

Recalibrate the rain gage annually. Obtain a Return Material Authorization

(RMA) number before returning this sensor to Campbell Scientific for

recalibration.

4.3.5 Troubleshooting, Rain Gage (part #TE525-QD)

Check the sensor cable. Disconnect the connector and use a DVM to check the

resistance between Pin A (sensor signal) and Pin C (sensor ground). The

resistance should read as an open circuit until you move the rain gage tipping

mechanism where the magnet swings past the reed relay. Try connecting a

substitute sensor. Obtain a Return Material Authorization (RMA) number

before returning this sensor to Campbell Scientific for repair.

4.4 Solar Radiation

4.4.1 General Description, Pyranometer (part #CS300-QD)

The Apogee Pyranometer (part #CS300-QD) shown in Figure 4.4-1 measures

incoming solar radiation with a silicon photovoltaic detector mounted in a

cosine-corrected head. The detector outputs current; a shunt resistor in the

sensor converts the signal from current to voltage. During the night the

CS300-QD may read slightly negative incoming solar radiation. The negative

signal is caused by RF noise.

FIGURE 4.4-1. Pyranometer