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ICEFREE3A and ICEFREE3V
Revision: 3/17
C o p y r i g h t
©
2 0 1 5 - 2 0 1 7
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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Summary of Contents for Campbell ICEFREE3A

  • Page 1 ICEFREE3A and ICEFREE3V Revision: 3/17 C o p y r i g h t © 2 0 1 5 - 2 0 1 7 C a m p b e l l S c i e n t i f i c ,...
  • Page 3 Limited Warranty “Products manufactured by CSI are warranted by CSI to be free from defects in materials and workmanship under normal use and service for twelve months from the date of shipment unless otherwise specified in the corresponding product manual. (Product manuals are available for review online at www.campbellsci.com.) Products not manufactured by CSI, but that are resold by CSI, are warranted only to the limits extended by the original manufacturer.
  • Page 4 (435) 227-9106. Campbell Scientific is unable to process any returns until we receive this form. If the form is not received within three days of product receipt or is incomplete, the product will be returned to the customer at the customer’s expense.
  • Page 5 Periodically (at least yearly) check electrical ground connections. • WHILE EVERY ATTEMPT IS MADE TO EMBODY THE HIGHEST DEGREE OF SAFETY IN ALL CAMPBELL SCIENTIFIC PRODUCTS, THE CUSTOMER ASSUMES ALL RISK FROM ANY INJURY RESULTING FROM IMPROPER INSTALLATION, USE, OR MAINTENANCE OF TRIPODS, TOWERS, OR ATTACHMENTS TO TRIPODS AND TOWERS SUCH AS SENSORS, CROSSARMS, ENCLOSURES, ANTENNAS, ETC.
  • Page 7: Table Of Contents

    2. Precautions ..............1 3. Initial Inspection ............1 4. Overview ..............1 5. Specifications ............. 2 Wind Direction (ICEFREE3V) ............2 Wind Speed (ICEFREE3A) ..............2 6. Installation ..............3 Siting ....................3 Wiring ....................3 6.2.1 ICEFREE3A Anemometer Wiring ..........3 6.2.2...
  • Page 8 ICEFREE3V Datalogger Connections (grey cable) ......4 6-4. ICEFREE3V Heater-to-24 V Power Supply Connections (red cable)....................4 6-5. Wind Speed Multiplier for m/s* ............5 6-6. Parameters for BRHalf Instruction ............6 CRBasic Example A-1. CR1000 Program Measuring the ICEFREE3A and ICEFREE3V .. A-1...
  • Page 9: Introduction

    ICEFREE3A and ICEFREE3V Introduction The ICEFREE3 anemometer and vane are electrically-heated wind sensors for ice-prone sites. They are manufactured by NRG. Campbell Scientific uses the model number ICEFREE3A for the anemometer, and ICEFREE3V for the vane. These sensors are reliable in heavy and light winds. They can accurately measure winds in excess of 90 m s –1...
  • Page 10: Specifications

    Easily mounts to a 27 mm (1.05 in) diameter mounting pipe • Powered by 24 V ac/dc • Compatible with Campbell Scientific CRBasic dataloggers: CR200(X) series, CR300 series, CR6 series, CR800 series, CR1000, and CR3000 Mounting: Mounts to a pipe with a 27 mm (1.05 in)
  • Page 11: Installation

    The ICEFREE3V vane needs to be oriented to true north (Appendix B, Wind Direction Sensor Orientation (p. B-1) Wiring 6.2.1 ICEFREE3A Anemometer Wiring The grey cable connects the anemometer to the datalogger (TABLE 6-1), and the red cable connects the anemometer’s heater to a 24 V power supply (TABLE 6-2).
  • Page 12: Icefree3V Vane Wiring

    ICEFREE3A and ICEFREE3V TABLE 6-1. ICEFREE3A Datalogger Connections (grey cable) Wire Color Wire Function Datalogger Connection Terminal U configured for pulse input , P (pulse input), or P_SW (pulse, switch closure Clear Signal input) ⏚ Black Signal Reference AG or ⏚ (analog ground)
  • Page 13: Datalogger Programming

    ICEFREE3A and ICEFREE3V Datalogger Programming 6.3.1 ICEFREE3A Wind Speed Wind speed is measured with the PulseCount() instruction, using the low-level AC configuration and set to output frequency in hertz. The PulseCount() has the following form: PulseCount( Dest, Reps, PChan, PConfig, POption, Mult, Offset )
  • Page 14: Troubleshooting

    ICEFREE3A and ICEFREE3V TABLE 6-6. Parameters for BRHalf Instruction CR800 CR850 CR1000 CR3000 CR300 Measurement 2500 mV 5000 mV 2500 mV Range 60 Hz, reverse 60 Hz, reverse Integration or f 60 Hz excitation excitation Excitation 2500 mV 2500 mV...
  • Page 15: References

    ICEFREE3A and ICEFREE3V References 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 for Regulatory Modeling Applications, EPA-450/4-87-013, Office of Air Quality Planning and Standards, Research Triangle Park, NC 27711.
  • Page 16 ICEFREE3A and ICEFREE3V...
  • Page 17 Appendix A. Example Program The following is a CR1000 program that measures the ICEFREE3A and ICEFREE3V. CRBasic Example A-1. CR1000 Program Measuring the ICEFREE3A and ICEFREE3V 'CR1000 'Declare Variables and Units Public Batt_Volt Public Wind_Speed Public Wind_Dir Units Batt_Volt=Volts Units...
  • Page 19: Wind Direction Sensor Orientation

    Appendix B. Wind Direction Sensor Orientation B.1 Determining True North and Sensor Orientation Orientation of the wind direction sensor is done after the datalogger has been programmed, and the location of True North has been determined. True North is usually found by reading a magnetic compass and applying the correction for magnetic declination;...
  • Page 20 Appendix B. Wind Direction Sensor Orientation FIGURE B-1. Magnetic declination for the contiguous United States (2004)
  • Page 21: Declination Angles East Of True North Are Subtracted From 0 To

    Appendix B. Wind Direction Sensor Orientation FIGURE B-2. Declination angles east of True North are subtracted from 0 to get True North FIGURE B-3. Declination angles west of True North are added to 0 to get True North...
  • Page 22 Appendix B. Wind Direction Sensor Orientation...
  • Page 24 Santo Domingo, Heredia 40305 SOUTH AFRICA COSTA RICA • cleroux@csafrica.co.za • info@campbellsci.cc www.campbellsci.co.za www.campbellsci.cc Campbell Scientific Southeast Asia Co., Ltd. Campbell Scientific Ltd. 877/22 Nirvana@Work, Rama 9 Road Campbell Park Suan Luang Subdistrict, Suan Luang District 80 Hathern Road Bangkok 10250...

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