Campbell Scientific P2546A-L Anemometer - Manual (Page 13)

P2546A-L Anemometer
Nonlinearity: < 0.04 m/s
Temperature Influence
(-15° to 60°C):
< 0.05 m/s
6.1 Calibration
Standard: U=A0+B0×f ,
Where:
U=Wind speed in m/s
f = Output frequency in Hz
A0 = 0.27 m/s
B0 = 0.620 m
6.2 Switching Characteristics
Signal Type: potential free contact closure
Duty Cycle: 40% to 60%
Maximum Switching Voltage: 30 V
Maximum Recommended
Switching Current:
10 mA
Series Resistance: 330 Ω, 1 W
Operating Temperature: –35° to 60°C
7. Installation
Locate wind sensors away from obstructions (e.g., trees and building). As a
general rule, there should be a horizontal distance of at least ten times the
height of the obstruction between the wind set and the obstruction. If mounting
the sensors on the roof of a building, the height of the sensors above the roof
should be at least 1.5 times the height of the building. See Section 10
for a list
of references that discuss siting wind speed and direction sensors. For power
performance applications, refer to IEC 61400-12-1 which specifies the
mounting and location of anemometers.
7.1 Wiring
Connections to Campbell Scientific dataloggers are given in TABLE 7-1 and
TABLE 7-2. When Short Cut program generator software is used to create the
datalogger program, wire the sensor to the datalogger as directed by the wiring
diagram created by Short Cut.
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