Campbell-scientific RAWS-P Remote Automated Weather Station Manual do Utilizador descarregar pdf (Página 17)

RAWS-P Remote Automated Weather Station

Consult the CS300-L manual for more information.

NOTE

4.4 Wind Speed and Direction

4.4.1 Wind Sensor

4.4.1.1 General Description

The Met One Wind Sensor (pn 034B-LQ) is an integrated cup anemometer and

wind vane. The anemometer consists of three cups that sense the wind speed.

These cups rotate on a vertical shaft that magnetically activates a sealed reed

switch. The reed switch opens and closes at a rate proportional to wind speed.

The wind direction is sensed by a vane. The vane drives a 10 kΩ

potentiometer. The wind speed sensor outputs a pulse. The wind direction

sensor outputs a voltage.

4.4.1.2 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 datalogger.

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

4.4.1.3 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.

Consult the 034B-L manual for more information.

NOTE

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Campbell-scientific RAWS-P Remote Automated Weather Station Manual do Utilizador Página 17