Campbell Scientific 03001-L User Manual
03001 R.M. Young Wind Sentry Set
03101 R.M. Young Wind Sentry Anemometer
03301 R.M. Young Wind Sentry Vane
Revision: 8/07
Copyright © 1986-2007
Campbell Scientific, Inc.
Warranty and Assistance
The 03001 R.M. YOUNG WIND SENTRY SET, 03101 R.M. YOUNG
WIND SENTRY ANEMOMETER, AND 03301 R.M. YOUNG WIND
SENTRY VANE are warranted by CAMPBELL SCIENTIFIC, INC. to be
free from defects in materials and workmanship under normal use and service
for twelve (12) months from date of shipment unless specified otherwise.
Batteries have no warranty. CAMPBELL SCIENTIFIC, INC.'s obligation
under this warranty is limited to repairing or replacing (at CAMPBELL
SCIENTIFIC, INC.'s option) defective products. The customer shall assume
all costs of removing, reinstalling, and shipping defective products to
CAMPBELL SCIENTIFIC, INC. CAMPBELL SCIENTIFIC, INC. will
return such products by surface carrier prepaid. This warranty shall not apply
to any CAMPBELL SCIENTIFIC, INC. products which have been subjected
to modification, misuse, neglect, accidents of nature, or shipping damage. This
warranty is in lieu of all other warranties, expressed or implied, including
warranties of merchantability or fitness for a particular purpose. CAMPBELL
SCIENTIFIC, INC. is not liable for special, indirect, incidental, or
consequential damages.
Products may not be returned without prior authorization. The following
contact information is for US and International customers residing in countries
served by Campbell Scientific, Inc. directly. Affiliate companies handle
repairs for customers within their territories. Please visit
www.campbellsci.com to determine which Campbell Scientific company
serves your country. To obtain a Returned Materials Authorization (RMA),
contact CAMPBELL SCIENTIFIC, INC., phone (435) 753-2342. After an
applications engineer determines the nature of the problem, an RMA number
will be issued. Please write this number clearly on the outside of the shipping
container. CAMPBELL SCIENTIFIC's shipping address is:
CAMPBELL SCIENTIFIC, INC.
RMA#_____
815 West 1800 North
Logan, Utah 84321-1784
CAMPBELL SCIENTIFIC, INC. does not accept collect calls.
R.M. Young Wind Sentry Table of
Contents
PDF viewers note: These page numbers refer to the printed version of this document. Use
the Adobe Acrobat® bookmarks tab for links to specific sections.
1. Introduction..................................................................1
2. Specifications ..............................................................2
3. Installation....................................................................3
3.1 Siting.........................................................................................................3
3.2 Assembly and Mounting...........................................................................3
3.3 03001 Wind Sentry Set.............................................................................3
3.4 03101 Anemometer ..................................................................................6
3.5 03301 Vane...............................................................................................6
4. Wiring............................................................................6
5. Example Programs......................................................7
5.1 Wind Speed ..............................................................................................7
5.2 Wind Direction.........................................................................................8
5.3 Wind Vector Processing Instruction.........................................................8
5.4 Example Programs....................................................................................8
5.4.1 CR1000 Example Program.............................................................9
5.4.2 CR10X Example Program ............................................................10
5.5 Long Lead Lengths.................................................................................11
6. Sensor Maintenance..................................................12
7. Troubleshooting ........................................................12
7.1 Wind Direction.......................................................................................12
7.2 Wind Speed ............................................................................................13
8. References .................................................................13
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R.M. Young Wind Sentry Table of Contents
Appendices
A. Wind Direction Sensor Orientation........................A-1
A.1 Determining True North and Sensor Orientation................................A-1
B. Wind Direction Measurement Theory....................B-1
B.1 AC Half Bridge (P5) and BRHalf Instructions.................................... B-1
B.2 EX-DEL-SE (P4) Instruction .............................................................. B-1
Figures
3-1. 03001 Mounted to CM200 Series Crossarm with CM220..................... 4
3-2. 03001 Mounted to 019ALU or CM200 Series Crossarm
with PN 1049....................................................................................... 4
3-3. 03101 Anemometer Mounted to CM200 Series Crossarm
with CM220......................................................................................... 5
3-4. 03001 Mounted to CM100 Series Tripod Mast with CM216................. 5
A-1. Magnetic Declination for the Contiguous United States ...................A-2
A-2. Declination Angles East of True North are Subtracted from 0 to
Get True North................................................................................A-2
A-3. Declination Angles West of True North are Added to 0 to
Get True North................................................................................A-3
B-1. 03001/03301 Potentiometer in a Half Bridge Circuit........................ B-1
Tables
1-1. Recommended Lead Lengths ................................................................. 1
4-1. Connections to Campbell Scientific Dataloggers................................... 6
5-1. Wind Speed Multiplier ........................................................................... 7
5-2. Parameters for Wind Direction............................................................... 8
5-3. Wiring for Example Programs................................................................ 9
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R.M. Young Wind Sentry
1. Introduction
The 03001 Wind Sentry Set is used to measure horizontal wind speed and
direction.
Wind speed is measured with a three cup anemometer. Rotation of the cup
wheel produces an AC sine wave voltage with frequency proportional to wind
speed.
Vane position is transmitted by a 10K ohm potentiometer. With a precision
excitation voltage applied, the output voltage is proportional to wind direction.
The 03101 Anemometer and 03301 Vane can be ordered as separate sensors,
which are also covered in this manual. The R.M. Young Instruction Manual
includes additional information on the operating principles, installation and
maintenance of the sensor.
Lead length for the Wind Sentry is specified when the sensor is ordered.
Table 1-1 gives the recommended lead length for mounting the sensor at the
top of the tripod/tower with a 019ALU or CM200 series crossarm.
TABLE 1-1. Recommended Lead Lengths
CM6 CM10 CM110 CM115 CM120 UT10 UT20 UT30
12’ 15’ 15’ 20’ 25’ 15’ 25’ 38’
The 03001 Wind Sentry ships with:
(1) 03001 Wind Sentry including
03101 Anemometer
03301 Vane
crossarm
band clamp (P/N 4919)
(1) 10" x 3/4" unthreaded aluminium pipe (P/N 6332)
(1) Allen wrench (P/N 5201)
The 03101 Anemometer ships with:
(1) 03101 Anemometer
(1) 10" x 3/4" threaded galvanized pipe (P/N 12243)
(1) Allen wrench (P/N 5201)
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R.M. Young Wind Sentry
The 03301 Vane ships with:
(1) 03301 Vane
(1) 10” x 3/4” threaded galvanized pipe (P/N 12243)
(1) Allen wrench (P/N 5201)
2. Specifications
Wind Speed (Anemometer) Specifications
Range: 0 to 50 m s-1 (112 mph), gust survival 60 m s-1 (134
Sensor: 12 cm diameter cup wheel assembly, 40 mm diameter
Accuracy: ±0.5 m s-1 (1.1 mph)
Turning Factor: 75 cm (2.5 ft)
Distance Constant
(63% recovery): 2.3 m (7.5 ft)
Threshold: 0.5 m s-1 (1.1 mph)
Transducer: Stationary coil, 1350 ohm nominal resistance
Transducer Output: AC sine wave signal induced by rotating magnet on cup
100 mV peak-to-peak at 60 rpm; 6 V peak-to-peak at
Output Frequency: 1 cycle per cup wheel revolution; 0.75 m s-1 per Hz
Cup Wheel Diameter: 12 cm (4.7 in)
Weight: 113 g (4 oz)
mph)
hemispherical cups
wheel shaft
3600 rpm
Wind Direction (Vane) Specifications
Range: 360° mechanical, 355° electrical (5° open)
Sensor: Balanced vane, 16 cm turning radius
Accuracy: ±5°
Damping Ratio: 0.2
Delay Distance
(50% recovery): 0.5 m (1.6 ft)
Threshold: 0.8 m s-1 (1.8 mph) at 10° displacement
1.8 m s-1 (4 mph) at 5° displacement
Transducer: Precision conductive plastic potentiometer; 10 K ohm
resistance; 0.5% linearity; life expectancy 20 million
revolutions.
Rated 1 watt at 40°C, 0 watts at 125°C.
Transducer Output: Analog dc voltage proportional to wind direction
angle with regulated excitation voltage supplied by
the datalogger
Vane Length: 22 cm (8.7 in)
Vane Weight: 170 g (6 oz)
Wind Sentry Assembly Specifications
Operating Temperature: -50° to +50°C assuming non-riming conditions
Overall Height: 32 cm (12.6 in)
Crossarm Length: 40 cm (15.7 in) between instruments (center-to-
center)
Mounting Diameter: 26.7 mm (1.05 in), mounts on standard 3/4 in. pipe
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R.M. Young Wind Sentry
NOTE
3. Installation
3.1 Siting
3.2 Assembly and Mounting
The black outer jacket of the cable is Santoprene® rubber. This
compound was chosen for its resistance to temperature extremes,
moisture, and 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.
Locate wind sensors away from obstructions (e.g. trees and building). As a
general rule of thumb there should be a horizontal distance of at least ten times
the height of the obstruction between the windset and the obstruction. If it is
necessary to mount 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 9 for a list of references that discuss siting wind speed and
direction sensors.
Tools Required:
• 5/64” Allen wrench
• Allen wrench provided with sensor
• 1/2” open end wrench
• compass and declination angle for the site (see Appendix A)
• small screw driver provided with datalogger
• UV resistant cable ties
• small pair of diagonal-cutting pliers
• 6 - 10” torpedo level
3.3 03001 Wind Sentry Set
Install the cupwheel to the anemometer shaft using the Allen wrench provided
with the sensor.
The 03001 mounts to a standard 0.75” IPS schedule 40 pipe (1.05” O.D.). A
12” long mounting pipe ships with the 03001 for attaching the sensor to a
019ALU or CM200 series crossarm with the CM220 or PN 1049 (Figures 3-1
and 3-2). The 03001 can also be mounted at the top of a CM6/CM10 tripod
mast, or to a CM110 series tripod with the CM216 as shown in Figure 3-4.
Mount the 019ALU or CM200 series crossarm to the tripod or tower. Orient
the crossarm North-South, with the 3/4” Nu-Rail or CM220 on the North end.
Appendix A contains detailed information on determining true north using a
compass and the magnetic declination for the site.
Secure the mounting pipe to the 019ALU or CM220. Place the 03001 on the
pipe, and orient the sensor crossarm North-South with the vane to the North.
Tighten the mounting post band clamp. Final sensor orientation is done after
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R.M. Young Wind Sentry
the datalogger has been programmed to measure wind direction as described in
Appendix A.
Route the sensor cable along the underside of the crossarm to the tower/tripod
mast, and to the instrument enclosure. Secure the sensor cable to the crossarm
and mast using cable ties.
CM220
CM200 Series Crossarm
FIGURE 3-1. 03001 Mounted to CM200 Series Crossarm with CM220
PN 1049 Nu-Rail
CM200 Series Crossarm
4
FIGURE 3-2. 03001 Mounted to 019ALU or CM200 Series Crossarm
with PN 1049
R.M. Young Wind Sentry
CM220
CM200 Series Crossarm
FIGURE 3-3. 03101 Anemometer Mounted to CM200 Series Crossarm
with CM220
CM216
FIGURE 3-4. 03001 Mounted to CM100 Series Tripod Mast
with CM216
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R.M. Young Wind Sentry
3.4 03101 Anemometer
3.5 03301 Vane
Install the cupwheel to the anemometer shaft using the Allen wrench provided
with the sensor.
The 03101 mounts to a threaded 0.75” IPS schedule 40 pipe (1.05” O.D.). A
10” long mounting pipe ships with the 03101 for attaching the sensor to a
019ALU or CM200 series crossarm with CM220 (Figures 3-3) or PN 1049.
The 03001 can also be mounted at the top of a CM6/CM10 tripod mast, or to a
CM110 series tripod with the CM216.
Mount the 019ALU or CM200 series crossarm to the tripod or tower. Screw
the mounting pipe into the base of the 03101, and attach the sensor / mounting
pipe to the crossarm.
Route the sensor cable along the underside of the crossarm to the tower/tripod
mast, and to the instrument enclosure. Secure the sensor cable to the crossarm
and mast using cable ties.
The 03301 Vane is typically ordered as a replacement vane for the 03001
Wind Sentry Set, and includes the bracket for attaching it to the 03001
crossarm. PN 4913 pipe mount (not included with the sensor) can be used to
attach the 03301 to a 019ALU or CM200 series crossarm (with the CM220 or
PN 1049), and the mounting pipe that ships with the sensor.
4. Wiring
Connections to Campbell Scientific dataloggers are given in Table 4-1. When
Short Cut for Windows software is used to create the datalogger program, the
sensor should be wired to the channels shown on the wiring diagram created
by Short Cut.
TABLE 4-1. Connections to Campbell Scientific Dataloggers
Color
Description
CR800
CR5000
CR3000
CR1000
CR510
CR500
CR10(X)
CR21X
CR7
CR23X
CR200
Black Wind Spd. Signal Pulse Pulse Pulse P_LL
White Wind Spd. Reference
Clear Wind Spd. Shield
G
G
Red Wind Dir. Signal SE Analog SE Analog SE Analog SE Analog
Black Wind Dir. Excitation Excitation Excitation Excitation Excitation
White Wind Dir. Reference
Clear Wind Dir. Shield
AG
G
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R.M. Young Wind Sentry
Wind Speed Wind Direction
5. Example Programs
This section is for users who write their own programs. A datalogger program
to measure this sensor can be created using Campbell Scientifics’ Short Cut
Program Builder software. You do not need to read this section to use Short
Cut.
5.1 Wind Speed
Wind speed is measured with the Pulse Count instruction, and with the low
level AC configuration. For dataloggers programmed with Edlog, specify
configuration code 21 to output frequency in Hertz.
The expression for wind speed (U) is:
U = MX + B
where
M = multiplier
X = number of pulses per second (Hertz)
B = offset
Table 5-1 lists the multipliers (M) and offsets (Off) to obtain meters/second or
miles/hour when the Pulse Count instruction is configured to output the result
in Hz.
TABLE 5-1. Wind Speed Multiplier
(With Configuration Code 21*)
Model Meters/Second Miles/Hour
03001 / 03101 M = 0.750
Off = 0.2
*When configuration code 11 is used, the multiplier above is
divided by the execution interval in seconds.
M = 1.677
Off = 0.4
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