Instruction manual

Met One 034B Wind Set

8. If LoggerNet, PC400, RTDAQ, or PC200W is running on your PC,

and the PC to datalogger connection is active, you can click Finish in

Short Cut and you will be prompted to send the program just created

to the datalogger.

9. If the sensor is connected to the datalogger, as shown in the wiring

diagram in step 6, check the output of the sensor in the datalogger

support software data display to make sure it is making reasonable

measurements.

5. Overview

The 034B, Wind Set is used to measure horizontal wind speed and direction.

Wind speed is measured with a three cup anemometer. Rotation of the cup

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

Vane position is transmitted by a 10 kΩ potentiometer. With a precision

excitation voltage applied, the output voltage is proportional to wind direction.

The accompanying Met One manual contains additional information on the

operating principals, installation, and maintenance of the sensor. The Met One

manual is also available at their website (www.metone.com).

Cable length for the 034B is specified when the sensor is ordered. TABLE 5-1

gives the recommended cable length for mounting the sensor at the top of the

tripod/tower with a CM202 crossarm.

TABLE 5-1. Recommended Cable Lengths

CM106 CM110 CM115 CM120 UT10 UT20 UT30

11 ft 14 ft 19 ft 24 ft 14 ft 24 ft 37 ft

The 034B’s cable can terminate in:

• Pigtails that connect directly to a Campbell Scientific datalogger

(option –PT).

• Connector that attaches to a prewired enclosure (option –PW). Refer

to www.campbellsci.com/prewired-enclosures for more information.

• Connector that attaches to a CWS900, Wireless Sensor Interface

(option –CWS). The CWS900 allows the 034B to be used in a

wireless sensor network. Refer to www.campbellsci.com/cws900 for

more information.

6. Specifications

Features:

• Designed for continuous, long term, unattended operation in adverse

conditions

• Constructed of light-weight aluminum

• Compatible with Campbell Scientific CRBasic dataloggers: CR6,

CR200(X) series, CR800 series, CR1000, CR3000, CR5000, and

CR9000X