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3 wind vector processing instruction, 4 example programs, 1 cr1000 example program – Campbell Scientific 05103, 05103-45, 05106, and 05305 R. M. Young Wind Monitors User Manual

Page 18: Wind vector processing instruction, Example programs, Cr1000 example program, 3. parameters, Wind direction, 4. wiring for example programs

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05103, 05103-45, 05106, and 05305 R.M. Young Wind Monitors

TABLE 7-3. Parameters for Wind Direction

CR10(X),

CR510,
CR200(X)


CR7, 21X,
CR23X


CR800
CR1000


CR5000,
CR3000

Measurement
Range

2500 mV,
slow

5000 mV,
slow/60 Hz

2500 mV,
60 Hz, reverse
excitation

5000 mV,
60 Hz, reverse
excitation

Excitation
Voltage

2500 mV

5000 mV

2500 mV

5000 mV

Multiplier 0.142 0.071 355

355

Offset 0 0 0

0

7.4.3 Wind Vector Processing Instruction

The Wind Vector output instruction is used to process and store mean wind
speed, unit vector mean wind direction, and Standard Deviation of the wind
direction (optional) using the measured wind speed and direction samples.

7.4.4 Example Programs

The following programs measure the Wind Monitor 05103 every 5 seconds,
and store mean wind speed, unit vector mean direction, and standard deviation
of the direction every 60 minutes. Wiring for the examples is given in TABLE
7-4.

TABLE 7-4. Wiring for Example Programs

Color Wire

Label

CR1000 CR10X

Red WS

Signal

P1

P1

Black WS

Reference

G

Green

WD Signal

SE 1

SE 1

Blue

WD Volt Excit

EX 1

E1

White

WD Reference

AG

Clear Shield

G

7.4.4.1 CR1000 Example Program

'CR1000
'Declare Variables and Units

Public Batt_Volt
Public WS_ms
Public WindDir


Units Batt_Volt=Volts
Units WS_ms=meters/second

Units WindDir=Degrees

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