Campbell WindSonic Manuel utilisateur

Revision: 08/2021

Campbell Scientific, Inc.

Table of contents

1. Introduction 1

2. Precautions 1

3. Initial inspection 2

4. QuickStart 2

5. Overview 5

6. Specifications 5

6.1 Wind direction 6

6.2 Wind speed 6

7. Installation 6

7.1 Data logger-to-WindSonic1 wiring 6

7.2 SDM-SIO1A/SDM-SIO4A wiring 7

7.3 Data logger programming 8

7.3.1 CRBasic programming 9

7.4 Siting 9

7.5 Mount the sensor 9

8. Operation 10

8.1 Sensor configuration 11

8.2 Campbell Scientific factory default settings 11

8.3 Sensor output 13

8.4 Long cables 14

9. Maintenance and troubleshooting 14

9.1 Troubleshooting 14

9.2 Maintenance 15

10. Siting references 15

Appendix A. Importing Short Cut code into CRBasic Editor 16

Appendix B. Determining True North and sensor orientation 17

B.1 Online magnetic declination calculator 19

Table of Contents - i

Appendix C. Updating an older program for the new WindSonic1 settings 21

Appendix D. Using the CPI/RS-232 port 23

Table of Contents - ii

1. Introduction

The WindSonic1 is a two-dimensional ultrasonic anemometer for measuring wind speed and

wind direction. It provides an alternative to traditional mechanical cup and vane or propeller and

vane anemometers. Unlike mechanical anemometers, the WindSonic1 has no moving parts that

need to be periodically replaced—minimizing routine maintenance costs.

The WindSonic1 outputs an RS-232 signal.

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 WindSonic1 is not recommended for conditions where rime, ice, or horizontal snow will

occur. It is not heated.

lThe WindSonic1 is a precision instrument. Please handle it with care.

lIf the WindSonic1 is to be installed at heights over 2 m (6 ft), be familiar with tower safety

and follow safe tower climbing procedures.

lDANGER—Use extreme care when working near overhead electrical wires. Check for

overhead wires before mounting the WindSonic1 or before raising a tower.

lWindSonic1 default settings were changed in February 2013. WindSonic1 anemometers

with newer settings will not work with older programs and Short Cut 3.0 or older. See

Campbell Scientific factory default settings (p. 11) and Updating an older program for the

new WindSonic1 settings (p. 21) for more information.

lThe 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.

WindSonic1 Two-Dimensional Sonic Anemometer 1

3. Initial inspection

lUpon receipt of the WindSonic1, 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.

4. QuickStart

A video that describes data logger programming using Short Cut is available at:

www.campbellsci.com/videos/cr1000x-data logger-getting-started-program-part-3 .Short

Cut is an easy way to program your data logger to measure the 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, and PC400.

The following procedure also shows using Short Cut to program the WindSonic1.

1. Open Short Cut and click Create New Program.

2. Double-click the data logger model.

WindSonic1 Two-Dimensional Sonic Anemometer 2

3. In the Available Sensors and Devices box, type WindSonic1 or locate the sensor in the

Sensors >Meteorological >Wind Speed & Direction folder. Double-click either

WindSonic1 (RS-232 9.6K baud) or WindSonic1 (RS-232 38.4K baud); 9.6K baud is the

factory-default setting. The wind speed defaults to meters per 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 3 and 4 for other sensors.

WindSonic1 Two-Dimensional Sonic Anemometer 3

6. In Output Setup, type the scan rate, meaningful table names, and Data Output Storage

Interval. Click Next.

7. Select the measurement and its associated output option.

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, or PC400 to make sure it is making reasonable

measurements.

WindSonic1 Two-Dimensional Sonic Anemometer 4

5. Overview

The WindSonic1 is manufactured by Gill Instruments, Ltd. It is an ultrasonic anemometer for

measuring wind direction and wind speed. Two pairs of orthogonally oriented transducers sense

horizontal wind. The transducers bounce the ultrasonic signal from a hood, minimizing the

effects of transducer shadowing and flow distortion.

The WindSonic1 outputs data using the RS-232 interface. It connects to two Cor Uterminals or to

the CPI/RS-232 port by using an RJ45 terminal block adapter. The WindSonic1 is also compatible

with the SDM-SIO1A and SDM-SIO4A devices, which increase the number of serial sensors one

data logger can measure. The WindSonic1 is not compatible with the CR200(X)-series or CR5000

data loggers. A similar sensor, the Wind Sonic4, is compatible with the CR200(X)-series and

CR5000; refer to www.campbellsci.com/windsonic4 for more information.

The WindSonic1 includes a user-specified cable to interface to a Campbell Scientific data logger.

A serial cable (WINDSONICRCBL-L) is available for interfacing a WindSonic1 to a computer

running the manufacturer’s computer support software. The cable and software are used during

troubleshooting or to change settings for a specific application. A copy of this computer support

software is available at www.gill.co.uk/main/software.html . WindView is used for WindSonic1

anemometers with serial numbers of 0810001 or greater, and WindCom is used for WindSonic1

anemometers with serial numbers that are less than 0810001.

Features:

lLow maintenance—no moving parts significantly reduces maintenance cost and time

lMinimum detectable wind speed of 0.01meters per second

lCompatible with Campbell Scientific CRBasic data loggers: CR6, CR3000, CR1000X, CR800

series, CR300 series, and CR1000

lCompatible with the SDM-SIO1A and SDM-SIO4A serial modules, which allows one data

logger to measure more WindSonic1 anemometers

6. Specifications

Output signal: RS-232

Measurement frequency: 40Hz block averaged to a programmable output frequency,

factory set to 1Hz

WindSonic1 Two-Dimensional Sonic Anemometer 5

Current drain: ~15 mA continuous

Operating temperature: –35 to 70 °C

Storage temperature: –40 to 80 °C

Dimensions: 142 x 160 mm (5.6 x 6.3 in)

Weight: 500 g (1.1 lb)

Operating humidity: <5% to 100% RH

6.1 Wind direction

Operating range: 0 to 359° (no dead band)

Accuracy: ±3°

Output resolution: 1°

6.2 Wind speed

Operating range: 0 to 60 m/s

Accuracy: ±2% @ 12 m/s

Output resolution: 0.01 m/s

7. Installation

If you are programming your data logger with Short Cut, skip Data logger-to-WindSonic1 wiring

(p. 6) and Data logger programming (p. 8). Short Cut does this work for you. See QuickStart (p. 2)

for a Short Cut tutorial.

7.1 Data logger-to-WindSonic1 wiring

The WindSonic1 supports serial communications with dedicated UART hardware on the data

logger control or universal terminals. Two control or universal terminals are configured as a

single communications (COMn) port.

WindSonic1 Two-Dimensional Sonic Anemometer 6

NOTE:

The WindSonic1 can also connect to the CPI/RS-232 port on a CR6 or CR1000X by using an

RJ45 terminal block adapter. Information about using this adapter is provided in Using the

CPI/RS-232 port (p. 23).

The WindSonic1 serial interface uses four wires as shown in Table 7-1 (p. 7).

Table 7-1: WindSonic1 to data logger connections

Description Color Data logger

WindSonic RxD Green C,Uconfigured for RS-232 Tx1

WindSonic TxD White C,Uconfigured for RS-232 Rx1

Power Red 12V

Serial/power reference Black G

Shield Clear G

1Uand Cterminals are automatically configured by the measurement instruction for Campbell Scientific CR6 data

logger.

NOTE:

The maximum cable length depends on the baud rate, the nominal resistance of the wire, the

capacitance between conductors, and the capacitance between the conductors and shield.

The Electronic Industries Association RS-232D standard suggests limiting the RS-232 cable

lengths to 15.2m (50ft) or less at 9600bps.

7.2 SDM-SIO1A/SDM-SIO4A wiring

The SDM-SIO1A and SDM-SIO4A allow one data logger to measure more serial sensors. The

SDM-SIO1A/SDM-SIO4A converts RS-232 signals into synchronous device for measurements

(SDM) signals. SDM is a Campbell Scientific digital communications protocol used between

Campbell Scientific data loggers and SDM peripherals. At a 1Hz measurement rate, a maximum

of four WindSonic1 sensors can be measured by a data logger. Table 7-2 (p. 8) describes the

connections between the devices. The SDM-SIO1A and SDM-SIO4A are not compatible with the

CR300-series data loggers.

WindSonic1 Two-Dimensional Sonic Anemometer 7

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