Campbell Wind Monitor Series User manual

Revision: 12/2020
Copyright © 1984 – 2020
Campbell Scientific, Inc.

Table of contents
1. Introduction 1
2. Precautions 1
3. Initial inspection 2
4. QuickStart 2
5. Overview 5
6. Specifications 6
7. Installation 8
7.1 Wiring 8
7.2 Programming 9
7.2.1 Wind speed 9
7.2.2 Wind direction 10
7.2.3 WindVector processing instruction 11
7.3 Siting 11
7.4 Assembly and mounting 11
7.4.1 Mounting the wind monitor to a crossarm 12
7.4.2 Mounting the wind monitor atop a tripod mast 14
8. Sensor maintenance 14
9. Troubleshooting 15
9.1 Wind direction 15
9.2 Wind speed 15
10. References 16
Appendix A. Importing Short Cut code into CRBasic Editor 17
Appendix B. Example programs 18
B.1 CR1000X example program 19
B.2 CR6 example program 20
Appendix C. Wind direction sensor orientation 21
C.1 Determining true north and sensor orientation 21
Appendix D. Wind direction measurement theory 24
Table of Contents - i

1. Introduction
Wind monitors measure horizontal wind speed and direction. The different models are designed
for different applications (Table 1-1 (p. 1)). The wind monitors are manufactured by R.M. Young.
Table 1-1: R.M. Young wind monitors models
Model Description
05103 Standard wind monitor
05103-45 Alpine wind monitor (discourages ice buildup)
05106 Marine wind monitor
05108 Heavy-duty wind monitor that greatly extends service life
05108-45 Heavy-duty wind monitor for alpine applications
05305 High-performance wind monitor for air quality applications
NOTE:
This manual provides information only for CRBasic data loggers. For retired Edlog data logger
support, see an older manual at www.campbellsci.com/old-manuals.
2. Precautions
lREAD AND UNDERSTAND the Safety section at the back of this manual.
lThe wind monitor is a precision instrument. Please handle it with care.
lDo not use cable lengths greater than 30 m (9 ft) in electrically noisy environments.
lThe black outer jacket of the cable is Santoprene® rubber. This compound was chosen for
its resistance to temperature extremes, moisture, and ultraviolet (UV) degradation.
However, this jacket will support combustion in air. It is rated as slow burning when tested
according to U.L. 94 H.B. and will pass FMVSS302. Local fire codes may preclude its use
inside buildings.
Wind Monitor Series 1

lWire color and functions of sensors purchased through Campbell Scientific may not
correspond with the wire colors and functions given in the manufacturer’s manual. To
ensure proper function, follow the wiring provided in Short Cut or in the Campbell
Scientific manual.
lWind monitors purchased directly from R.M. Young may not have the 1 MΩ resistor used to
short the readings in the dead band to ground.
3. Initial inspection
lUpon receipt of the wind monitor, inspect the packaging and contents for damage. File
damage claims with the shipping company. Immediately check package contents against
the shipping documentation. Contact Campbell Scientific about any discrepancies.
lThe model number and cable length are printed on a label at the connection end of the
cable. Check this information against the shipping documents to ensure the expected
product and cable length are received.
The wind monitors ship with:
(1) 1/16 inch hex key wrench from manufacturer (used for bearing replacement)
(1) Bearing gap gauge (spacer) from manufacturer (used for bearing replacement)
(1) Calibration sheet
(1) Ferrite choke from manufacturer
(1) Unthreaded aluminum pipe, 1-inch IPS, 12-inch length
4. QuickStart
A video that describes data logger programming using Short Cut is available at:
www.campbellsci.com/videos/cr1000x-datalogger-getting-started-program-part-3 .Short Cut
is an easy way to program your data logger to measure this sensor and assign data logger wiring
terminals. Short Cut is available as a download on www.campbellsci.com. It is included in
installations of LoggerNet,RTDAQ,PC400, or PC200W.
The following procedure also describes programming with Short Cut.
Wind Monitor Series 2

1. Open Short Cut and create a new program.
2. Double-click the data logger model.
3. In the Available Sensors and Devices box, type 05103, 05106, or 05305 AQ or locate the
sensor in the Sensors >Meteorological >Wind Speed & Direction folder. Double-click
05103 Wind Speed & Direction Sensor,05106 Wind Speed & Direction Sensor, or 05305-AQ
Wind Speed & Direction Sensor. The wind speed defaults to meters/second. This can be
changed by clicking the Wind Speed box and selecting one of the other options.
4. Click on the Wiring tab to see how the sensor is to be wired to the data logger. Click OK
after wiring the sensor.
5. Repeat steps three and four for other sensors. Click Next.
Wind Monitor Series 3

6. In Output Setup, enter the scan rate, Data Output Storage Intervals, and meaningful table
names.
7. Select the measurement and its associated output options.
8. Click Finish and save the program. Send the program to the data logger if the data logger
is connected to the computer.
9. If the sensor is connected to the data logger, check the output of the sensor in the data
display in LoggerNet,RTDAQ,PC400, or PC200W to make sure it is making reasonable
measurements.
Wind Monitor Series 4

5. Overview
Wind speed is measured by using a helicoid-shaped, four-blade propeller. Rotation of the
propeller produces an AC sine wave signal with frequency 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 R.M. Young Instruction Manual includes additional information on the operating principles,
installation, and maintenance of the sensor.
The wind monitors are manufactured by R.M. Young and cabled by Campbell Scientific for use
with our data loggers. Cable lengths for the wind monitors are specified when the sensors are
ordered. Table 5-1 (p. 5) gives the recommended cable length for mounting the sensor at the top
of the tripod/tower by using a CM200-series crossarm.
Table 5-1: Recommended cable lengths
CM106B CM110 CM115 CM120 UT10 UT20 UT30
4.2 m (14 ft) 4.2 m (14 ft) 5.8 m (19 ft) 7.3 m (24 ft) 4.2 m (14 ft) 7.3 m (24 ft) 11.3 m (37 ft)
NOTE:
Maximum cable length is 304.8 m (1000 ft).
CAUTION:
Do not use cable lengths greater than 30 m (9 ft) in electrically noisy environments.
Features:
lRugged enough for harsh environments
lConstructed with thermoplastic material that resists corrosion from sea-air environments
and atmospheric pollutants
lIdeal for wind profile studies
lCompatible with the LLAC4 4-channel Low Level AC Conversion Module, which increases
the number of anemometers one data logger can measure
lCompatible with Campbell Scientific CRBasic data loggers: CR6, CR3000, CR1000X, CR800
series, CR300 series, and CR1000
Wind Monitor Series 5

6. Specifications
Table 6-1 (p. 6) Table 6-2 (p. 7), and Table 6-3 (p. 8) provide the wind speed, wind direction, and
physical specifications, respectively.
Table 6-1: Wind speed specifications
05103
Wind
Monitor
05103-45
Wind
Monitor-
Alpine
05106
Wind
Monitor-MA
05108
Heavy Duty
Wind
Monitor
05108-45
Heavy Duty
Wind
Monitor-
Alpine
05305
Wind
Monitor-AQ
Range 0 to 100 m/s (0 to 224 mph) 0 to 50 m/s
(0 to 112mph)
Accuracy ±0.3 m/s (±0.6 mph) or 1% of reading
±0.2 m/s
(±0.4mph) or
1% of reading
Starting
threshold
1.0 m/s
(2.2 mph)
2.4 mph
(1.1 m/s) 1.0 m/s (2.2 mph) 0.4 m/s (0.9mph)
Distance
constant
(63%
recovery)
2.7 m (8.9 ft) 2.1 m (6.9 ft)
Output
AC voltage (3 pulses per
revolution); 1800 rpm (90 Hz) =
8.8 m/s (19.7mph)
AC voltage (3 pulses per
revolution); 1800 rpm
(90 Hz) = 14.9 m/s
(33.3mph)
AC voltage (3 pulses
per revolution);
1800rpm(90Hz) =
9.2m/s (20.6mph)
Resolution
(0.0980 m/s) / (scan rate in
seconds) or (0.2192mph) /
(scan rate in seconds)
(0.1666 m/s) / (scan rate
in seconds) or
(0.3726mph)/
(scan rate in seconds)
(0.1024 m/s) / (scan
rate in sec.) or
(0.2290mph) / (scan
rate in sec.)
Wind Monitor Series 6

Table 6-2: Wind direction specifications
05103
Wind
Monitor
05103-45
Wind
Monitor-
Alpine
05106 Wind
Monitor-MA
05108 Heavy
Duty Wind
Monitor
05108-45
Heavy Duty
Wind
Monitor-
Alpine
05305 Wind
Monitor-AQ
Range 0° to 360° mechanical, 355° electrical (5° open)
Accuracy ±3° ±5° ±3°
Starting
threshold 1.1 m/s (2.4 mph) 1.0 m/s (2.0 mph) 0.5 m/s (1.0 mph)
Distance
constant
(50%
recovery)
1.3 m (4.3 ft) 1.2 m
(3.9 ft)
Damping
ratio 0.3 0.25 0.45
Damped
natural
wavelength
7.4 m (24.3 ft) 4.9 m
(16.1ft)
Undamped
natural
wavelength
7.2 m (23.6 ft) 4.4 m
(14.4ft)
Output analog DC voltage from potentiometer—resistance 10 kΩ; linearity 0.25%;
life expectancy 50 million revolutions
Power switched excitation voltage supplied by data logger
Wind Monitor Series 7

Table 6-3: Physical specifications
05103
Wind
Monitor
05103-45
Wind
Monitor-
Alpine
05106 Wind
Monitor-MA
05108 Heavy
Duty Wind
Monitor
05108-45
HeavyDuty
Wind
Monitor-
Alpine
05305 Wind
Monitor-AQ
Operating
temperature
range
–50 to +50 °C, assuming
non-riming conditions
–50 to +60 °C, assuming
non-riming conditions
-50to+50°C,
assuming
non-riming
conditions
Overall
height 37 cm (14.6 in) 40 cm (15.7 in)
38 cm
(15in)
Overall
length 55 cm (21.7 in) 57 cm (22.4 in)
65cm
(25.6in)
Propeller
diameter
18 cm
(7.1 in)
14 cm
(5.5 in) 18 cm (7.1 in) 20cm (7.9in)
Mounting
pipe
description
34 mm (1.34 in) outer diameter; standard 1.0 in IPS schedule 40
Weight 1.5 kg
(3.2 lb)
1 kg
(2.2 lb)
1.5 kg
(3.2 lb) 1 kg (2.2 lb) 1.1 kg (2.5 lb)
7. Installation
If you are programming your data logger by using Short Cut, skip Wiring (p. 8) and Programming
(p. 9). Short Cut does this work for you. See QuickStart (p. 2) for a Short Cut tutorial.
7.1 Wiring
Connections to Campbell Scientific data loggers are given in Table 7-1 (p. 9). When Short Cut
software is used to create the data logger program, the sensor is wired to the terminals shown in
the wiring diagram created by Short Cut.
Wind Monitor Series 8