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Appendix C. Wind Direction Sensor Orientation

C-2

FIGURE C-1. Magnetic declination for the contiguous United States

(2004)

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Содержание 03002

Страница 1: ...UCTION MANUAL 03002 R M Young Wind Sentry Set 03101 R M Young Wind Sentry Anemometer 03301 R M Young Wind Sentry Vane Revision 2 18 C o p y r i g h t 1 9 8 6 2 0 1 8 C a m p b e l l S c i e n t i f i c I n c ...

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Страница 4: ...ner Campbell Scientific s shipping address is CAMPBELL SCIENTIFIC CANADA CORP RMA _____ 14532 131 Avenue NW Edmonton Alberta T5L 4X4 Canada For all returns the client 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 web site at www campbellsci ca repair A completed form must be either emailed t...

Страница 5: ...e 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 killed or sustain serious bodily injury i...

Страница 6: ...z ounce 28 35 g 1 lb pound weight 0 454 kg Pressure 1 psi lb in2 68 95 mb Volume 1 US gallon 3 785 litres In addition part ordering numbers may vary For example the CABLE5CBL is a CSI part number and known as a FIN5COND at Campbell Scientific Canada CSC CSC Technical Support will be pleased to assist with any questions About sensor wiring Please note that certain sensor configurations may require ...

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Страница 8: ...ind Sentry Assembly 7 7 Installation 7 7 1 Siting 7 7 2 Assembly and Mounting 7 7 2 1 Mounting the 03002 to a Crossarm 8 7 2 2 Mounting the 03101 Anemometer to a Crossarm 10 7 2 3 Mounting the 03002 or 03101 Atop a Tripod Mast 10 7 2 4 Mounting the 03301 Vane 11 7 3 Wiring 11 7 4 Programming 13 7 4 1 Wind Speed 13 7 4 2 Wind Direction 14 7 4 3 Wind Vector Processing Instruction 14 8 Sensor Mainten...

Страница 9: ...ic declination for the contiguous United States 2004 C 2 C 2 Declination angles east of True North are subtracted from 0 to get True North C 3 C 3 Declination angles west of True North are added to 0 to get True North C 3 D 1 03002 and 03301 potentiometer in a half bridge circuit D 1 Tables 5 1 Recommended Cable Lengths 5 7 1 03002 Wire Color Wire Function and Datalogger Connection 12 7 2 03101 or...

Страница 10: ...working near overhead electrical wires Check for overhead wires before mounting the 03002 or before raising a tower 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 FM...

Страница 11: ...h The 03301 vane ships with 1 03301 vane 1 3 4 inch IPS 10 inch long threaded aluminum pipe this assumes mounting option P 1 Allen wrench 4 QuickStart Short Cut is an easy way to program your datalogger to measure the 03002 and assign datalogger wiring terminals Short Cut is available as a download on www campbellsci com It is included in installations of LoggerNet PC200W PC400 or RTDAQ The follow...

Страница 12: ...e click 03002 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 After entering the Properties click on the Wiring tab to see how the sensor is to be wired to the datalogger 4 Select any other sensors you have then finish the remaining Short Cut steps to complete the program ...

Страница 13: ...the datalogger 8 If the sensor is connected to the datalogger as shown in the wiring diagram check the output of the sensor in the datalogger support software data display to make sure it is making reasonable measurements 5 Overview The 03002 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 ...

Страница 14: ...a CM200 series crossarm TABLE 5 1 Recommended Cable Lengths CM106B CM110 CM115 CM120 UT10 UT20 UT30 12 ft 15 ft 20 ft 25 ft 15 ft 25 ft 38 ft Do not exceed 1 000 feet of cable Do not use long lead lengths in electrically noisy environments The 03002 s cable can terminate in Pigtails that connect directly to a Campbell Scientific datalogger option PT Connector that attaches to a prewired enclosure ...

Страница 15: ...d 0 5 m s 1 1 1 mph Transducer Stationary coil 1300 ohm nominal resistance Output AC sine wave signal induced by rotating magnet on cup wheel shaft 100 mV peak to peak at 60 rpm 6 V peak to peak at 3600 rpm 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 6 2 Wind Direction Vane Range 360 mechanical 352 electrical 8 open Sensor B...

Страница 16: ...kStart p 2 for a Short Cut tutorial 7 1 Siting Locate wind sensors away from obstructions e g trees and buildings As a general rule of thumb there should be a horizontal distance of at least ten times the height of the obstruction between the wind set 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 ...

Страница 17: ...ing True North using a compass and the magnetic declination for the site 4 Secure the 12 inch aluminum pipe to the CM220 mount or Nu Rail The aluminum pipe is shipped with the 03002 5 Place the 03002 on the pipe and orient the sensor crossarm North South with the vane to the North 6 Tighten the mounting post band clamp Final sensor orientation is done after the datalogger has been programmed to me...

Страница 18: ...g Wind Sentry 9 FIGURE 7 2 03002 mounted to a crossarm with the CM220 FIGURE 7 3 03002 mounted to a crossarm with 1 x 1 inch Nu Rail fitting CM220 Crossarm Aluminum Pipe Crossarm Aluminum Pipe Cable Tie Nu Rail ...

Страница 19: ...e the 03101 on the pipe 5 Route the sensor cable to the instrument enclosure If using a crossarm the cable should be routed along the underside of the crossarm 6 Secure the cable to the crossarm and tripod or tower using cable ties FIGURE 7 4 03101 mounted to a crossarm via a 3 4 x 1 inch Nu Rail fitting 7 2 3 Mounting the 03002 or 03101 Atop a Tripod Mast The 03002 and 03101 mount at the top of a...

Страница 20: ... already has its own mount With this option the 03301 mounts to a crossarm using the CM220 mount or 3 4 x 1 inch Nu Rail fitting 03101 Conversion Kit option SM is used when the 03301 will be mounted next to a previously purchased 03101 Anemometer Wind Sentry Anemometer This conversion kit includes the crossarm and other hardware to mount both sensors to a common crossarm as if they had been purcha...

Страница 21: ...r Shield analog ground 1 U channels are automatically configured by the measurement instruction TABLE 7 2 03101 or 03301Wire Color Wire Function and Datalogger Connection Wire Color Wire Function Datalogger Connection Terminal Black WS Signal U configured for pulse input1 P pulse input or P_LL pulse low level ac White WS Signal Reference Clear Shield analog ground Red WD Signal U configured for si...

Страница 22: ...annot edit programs after they are imported and edited in CRBasic Editor A Short Cut tutorial is available in Section 4 QuickStart p 2 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 provided in the following sections...

Страница 23: ...ind direction 30 while in the dead band To overcome this problem all program examples use a delay of 20 ms 20 000 μs and set any negative wind direction values to 0 0 If WindDir 0 then WindDir 0 0 Excitation voltages range codes and multipliers for Campbell Scientific dataloggers are listed in TABLE 7 4 Appendix D Wind Direction Measurement Theory p D 1 has additional information on the BRHalf mea...

Страница 24: ...ent 9 Troubleshooting 9 1 Wind Direction Symptom NAN 9999 or no change in direction 1 Check that the sensor is wired to the excitation and single ended channel specified by the measurement instruction 2 Verify that the excitation voltage and range code are correct for the datalogger type 3 Disconnect the sensor from the datalogger and use an ohm meter to check the potentiometer Resistance should b...

Страница 25: ...cables the sensor the wiring in the R M Young manual will be different than the wiring listed in this manual The following references give detailed information on siting wind speed and wind direction sensors EPA 1989 Quality Assurance Handbook for Air Pollution Measurements System Office of Research and Development Research Triangle Park NC 27711 EPA 1987 On Site Meteorological Program Guidance fo...

Страница 26: ...he procedure in Section 4 QuickStart p 2 Finish the program On the Advanced tab click the CRBasic Editor button The program opens in CRBasic with the name noname CR_ Now save the program with your desired name in any folder Once the file is edited with CRBasic Editor Short Cut can no longer be used to edit the datalogger program Change the name of the program file or move it or Short Cut may overw...

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Страница 28: ...att_Volt Volts Units WS_ms meters second Units WindDir Degrees Define Data Tables DataTable Hour True 1 DataInterval 0 60 Min 10 WindVector 1 WS_ms WindDir FP2 False 0 0 0 FieldNames WS_ms_S_WVT WindDir_D1_WVT WindDir_SD1_WVT EndTable Main Program BeginProg Scan 5 Sec 1 0 Default Datalogger Battery Voltage measurement Batt_Volt Battery Batt_Volt 03002 or 03101 RM Young Wind Sentry Wind Speed Senso...

Страница 29: ...lse 0 0 0 FieldNames WS_ms_S_WVT WindDir_D1_WVT WindDir_SD1_WVT EndTable Main Program BeginProg Main Scan Scan 5 Sec 1 0 Default Datalogger Battery Voltage measurement BattV Battery BattV Default Wiring Panel Temperature measurement PTemp_C PanelTemp PTemp_C 60 03002 Wind Speed Direction Sensor measurements WS_ms and WindDir WS_ms PulseCount WS_ms 1 U4 5 1 0 75 0 2 If WS_ms 0 21 Then WS_ms 0 WindD...

Страница 30: ...Min WindVector WS_ms WindDir False 0 0 FieldNames WS_ms_S_WVT WindDir_D1_WVT WindDir_SD1_WVT EndTable Main Program BeginProg Main Scan Scan 5 Sec Default Datalogger Battery Voltage measurement BattV Battery BattV 03002 Wind Speed Direction Sensor measurements WS_ms and WindDir WS_ms PulseCount WS_ms P_LL 1 1 0 75 0 2 If WS_ms 0 21 Then WS_ms 0 WindDir ExDelSE WindDir 1 1 1 mV2500 20000 0 1408 0 If...

Страница 31: ...Appendix B Example Programs B 4 ...

Страница 32: ...d negative and are subtracted from 360 degrees to get True North as shown FIGURE C 2 0 and 360 are the same point 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 For example the declination for Logan Utah is 14 East True North is 360 14 or 346 as read on a compass Orientation is most easily done with two...

Страница 33: ...Appendix C Wind Direction Sensor Orientation C 2 FIGURE C 1 Magnetic declination for the contiguous United States 2004 ...

Страница 34: ...C Wind Direction Sensor Orientation C 3 FIGURE C 2 Declination angles east of True North are subtracted from 0 to get True North FIGURE C 3 Declination angles west of True North are added to 0 to get True North ...

Страница 35: ...Appendix C Wind Direction Sensor Orientation C 4 ...

Страница 36: ...ground Rs and Vs varies with wind direction The measurement result is the ratio of the measured voltage to the excitation voltage Vs Vx This ratio is related to the resistance as shown below s t s x s R R R V V The maximum value that Rs will reach is Rf just before it crosses over from the west side of north to the east side of north at this point Rt 0 Vs Vx reaches its maximum value of 1 0 mV mV ...

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Страница 39: ...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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