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020C Wind Direction Sensor 

7.2  Datalogger Programming 

Short Cut

 is the best source for up-to-date datalogger programming code. 

Programming code is needed when: 

 

Creating a program for a new datalogger installation 

 

Adding sensors to an existing datalogger program 

If your data acquisition requirements are simple, you can probably create and 
maintain a datalogger program exclusively with 

Short Cut

. If your data 

acquisition needs are more complex, the files that 

Short Cut 

creates are a great 

source for programming code to start a new program or add to an existing 
custom program. 

Short Cut

 cannot edit programs after they are imported and edited 

in 

CRBasic Editor

Short Cut

 tutorial is available in Section 

4

QuickStart

 

(p. 1)

If you wish to 

import 

Short Cut

 code into 

CRBasic Editor

 to create or add to a customized 

program, follow the procedure in Appendix 

A

Importing Short Cut Code Into 

CRBasic Editor

 

(p. A-1)

. Programming basics for CRBasic dataloggers are in the 

following section. Complete program examples for select CRBasic dataloggers 
can be found in Appendix 

B

Example Program

 

(p. B-1)

.  

7.2.1  VoltSE Instruction 

The 

VoltSE() 

measurement instruction programs the datalogger to measure the 

020C.  

VoltSE

( Dest, Reps, Range, SEChan, MeasOff, SettlingTime, 

Integ

/f

notch

, Mult, Offset ) 

Use 0.072 for the 

Mult

 and 0.0 for the 

Offset

. For 

Range

, use 

mV5000

 

(CR1000, CR800, CR6, CR3000, CR5000) or 

mV2500

 (CR300). You need to 

move a jumper to use the 

mV2500

 range (Section 

7.2.1.1

Output Voltage

 

(p. 6)

). 

If the sensor will be in electrically noisy environments, use 50 Hz or 60 Hz 
rejection for 

Integ/f

notch

.  

If the wind vane will be oriented in a direction other than south, 
an offset correction is required. Refer to Appendix 

B

Example 

Program

 

(p. B-1)

, for more information. 

7.2.1.1  Output Voltage 

The default output voltage range is 0 to 5 Vdc, which most Campbell Scientific 
dataloggers can measure. For the CR300 datalogger to measure the 020C, 
move the jumper block under the outer cover of the main body of the probe. 
The outer cover is held in place by friction against two O-rings. To change the 
range, carefully slide the outer cover down to expose the circuit board. A set of 
three jumper pins is mounted at the top of the board. Set the jumper block over 
pins 

E1

 and 

2.5

. This changes the output voltage range to 0 to 2.5 Vdc, which 

the CR300 can measure. After changing the jumper, slide the cover into place 
over the top O-ring. 

NOTE 

NOTE 

Summary of Contents for 020C

Page 1: ...INSTRUCTION MANUAL 020C Wind Direction Sensor Revision 6 16 C o p y r i g h t 2 0 1 2 2 0 1 6 C a m p b e l l S c i e n t i f i c I n c ...

Page 2: ......

Page 3: ...ducts to CSI CSI will return such Products by surface carrier prepaid within the continental United States of America To all other locations CSI will return such Products best way CIP port of entry per Incoterms 2010 This warranty shall not apply to any Products which have been subjected to modification misuse neglect improper service accidents of nature or shipping damage This warranty is in lieu...

Page 4: ... address is CAMPBELL SCIENTIFIC INC RMA _____ 815 West 1800 North Logan Utah 84321 1784 For all returns the customer must fill out a Statement of Product Cleanliness and Decontamination form and comply with the requirements specified in it The form is available from our website at www campbellsci com repair A completed form must be either emailed to repair campbellsci com or faxed to 435 227 9106 ...

Page 5: ...e beginning work Wear a hardhat and eye protection and take other appropriate safety precautions while working on or around tripods and towers Do not climb tripods or towers at any time and prohibit climbing by other persons Take reasonable precautions to secure tripod and tower sites from trespassers Use only manufacturer recommended parts materials and tools Utility and Electrical You can be kil...

Page 6: ......

Page 7: ...on 6 7 2 1 1 Output Voltage 6 7 3 Siting 7 7 4 Assembly and Mounting 7 7 5 Sensor Check Out 9 8 Troubleshooting and Maintenance 9 8 1 Troubleshooting 10 8 2 Maintenance Schedule 10 9 References 10 Appendices A Importing Short Cut Code Into CRBasic Editor A 1 B Example Program B 1 C Wind Direction Sensor Orientation C 1 C 1 Determining True North and Sensor Orientation C 1 Figures 7 1 CM220 right a...

Page 8: ...ubtracted from 360 to get true North C 3 C 3 Declination angles west of true North are added to 0 to get true North C 3 Tables 7 1 Wire Color Wire Function and Connections 5 8 1 020C Wind Direction Sensor Troubleshooting 10 CRBasic Example B 1 CR1000 Example Program B 1 ...

Page 9: ...lease handle it with care If the 020C will be installed at heights over six feet be familiar with tower safety and follow safe tower climbing procedures Danger Use extreme care when working near overhead electrical wires Check for overhead wires before mounting the 020C or before raising a tower 3 Initial Inspection Upon receipt of the 020C inspect packaging and contents for damage File damage cla...

Page 10: ... Wind Direction Sensor 2 Use the following procedure to get started 1 Open Short Cut Click New Program 2 Select Datalogger Model and Scan Interval default of 5 seconds is OK for most applications Click Next ...

Page 11: ...lation offset correction is required Refer to the Short Cut Help for information about the installation offset correction 4 After selecting the sensor click Wiring Diagram to see how the sensor is to be wired to the datalogger The wiring diagram can be printed now or after more sensors are added 5 Select any other sensors you have then finish the remaining Short Cut steps to complete the program T...

Page 12: ... aspiration through the bearings thereby greatly increasing bearing life It also includes electrical field surge protection that reduces problems associated with static fields near miss lightning hits and poor grounding systems The vane assembly is easily installed or replaced without requiring recalibration All sensor components are constructed with stainless steel and anodized aluminum 6 Specifi...

Page 13: ...ct to the datalogger and power source Connections are given in TABLE 7 1 TABLE 7 1 Wire Color Wire Function and Connections Wire Color Wire Function Datalogger Connection Terminal Power Source Connection Terminal White 12 V Power 12V N A Green Ground G N A Blue Signal U configured for single ended analog input1 SE single ended analog voltage input N A Clear Shield AG or analog ground N A Red2 opti...

Page 14: ...SE Instruction The VoltSE measurement instruction programs the datalogger to measure the 020C VoltSE Dest Reps Range SEChan MeasOff SettlingTime Integ fnotch Mult Offset Use 0 072 for the Mult and 0 0 for the Offset For Range use mV5000 CR1000 CR800 CR6 CR3000 CR5000 or mV2500 CR300 You need to move a jumper to use the mV2500 range Section 7 2 1 1 Output Voltage p 6 If the sensor will be in electr...

Page 15: ...unting Bushing compass and declination angle for the site small screwdriver provided with datalogger UV resistant cable ties small pair of diagonal cutting pliers 6 to 10 inch torpedo or spirit level CM220 Right Angle Mounting Kit or 3 4 x 1 inch Nu Rail Crossover Fitting pn 1049 1 Mount the CM200 series crossarm to the tripod or tower Orient the crossarm north to south with the Nu Rail fitting or...

Page 16: ... bushing such that the counterweight alignment notches FIGURE 7 3 and alignment screw FIGURE 7 1 FIGURE 7 2 point true south Sensor column CM220 mounting bracket CM200 series crossarm U bolt Alignment set screw U bolt Bushing Cable connector Bushing Set screw 1 x 3 4 Nu Rail fitting Set screw Alignment screw CM200 series crossarm ...

Page 17: ...ck Out With the datalogger measuring the sensor 020C output moves up scale as the vane rotates clockwise as seen from above the sensor Output will progress up scale until the 360 full scale mark has been reached Output then drops to near 0 When the notches on the rotating hub and the column of the sensor are exactly aligned the output will be 180 8 Troubleshooting and Maintenance All factory repai...

Page 18: ...place potentiometer Contact Campbell Scientific for repair authorization No change in wind direction output below 2 to 5 mph Bad bearings Replace bearings Contact Campbell Scientific for repair authorization 8 2 Maintenance Schedule 6 to 12 Month Intervals 1 Inspect sensor for proper operation per Section 7 5 Sensor Check Out p 9 2 Return to Campbell Scientific for calibration 12 to 24 Month Inter...

Page 19: ... and Standards Research Triangle Park NC 27711 The State Climatologist 1985 Publication of the American Association of State Climatologists Height and Exposure Standards for Sensors on Automated Weather Stations vol 9 No 4 WMO 1983 Guide to Meteorological Instruments and Methods of Observation World Meteorological Organization No 8 5th edition Geneva Switzerland ...

Page 20: ...020C Wind Direction Sensor 12 ...

Page 21: ...ut Make note of the file name used when saving the Short Cut program 2 Open CRBasic Editor 3 Click File Open Assuming the default paths were used when Short Cut was installed navigate to C CampbellSci SCWin folder The file of interest has the CR300 CR6 CR8 CR1 CR3 or CR5 extension Select the file and click Open 4 Immediately save the file in a folder different from C Campbellsci SCWin or save the ...

Page 22: ......

Page 23: ...10 Min 10 Sample 1 WindDir FP2 EndTable DataTable Table2 True 1 DataInterval 0 1440 Min 10 Minimum 1 BattV FP2 False False EndTable Main Program BeginProg Main Scan Scan 1 Sec 1 0 Default Datalogger Battery Voltage measurement BattV Battery BattV Default Wiring Panel Temperature measurement PTemp_C PanelTemp PTemp_C _60Hz 020C Wind Direction Sensor measurement WindDir VoltSe WindDir 1 mV5000 1 1 0...

Page 24: ......

Page 25: ...d negative and are subtracted from 360 degrees to get true North as shown in FIGURE C 2 0 and 360 are the same point on a compass For example the declination for Logan Utah is 13 5 East so true North is 360 13 5 or 346 5 as read on a compass Declination angles west of true North are considered positive and are added to 0 degrees to get true North as shown in FIGURE C 3 Orientation is most easily d...

Page 26: ...Appendix C Wind Direction Sensor Orientation C 2 FIGURE C 1 Magnetic declination for the contiguous United States 2004 ...

Page 27: ... Wind Direction Sensor Orientation C 3 FIGURE C 2 Declination angles east of true North are subtracted from 360 to get true North FIGURE C 3 Declination angles west of true North are added to 0 to get true North ...

Page 28: ...Appendix C Wind Direction Sensor Orientation C 4 ...

Page 29: ......

Page 30: ...Rua Apinagés nbr 2018 Perdizes CEP 01258 00 São Paulo SP BRASIL www campbellsci com br vendas campbellsci com br Campbell Scientific Canada Corp 14532 131 Avenue NW Edmonton AB T5L 4X4 CANADA www campbellsci ca dataloggers campbellsci ca Campbell Scientific Centro Caribe S A 300 N Cementerio Edificio Breller Santo Domingo Heredia 40305 COSTA RICA www campbellsci cc info campbellsci cc Campbell Sci...

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