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Campbell Met One 034A-L Instruction Manual

Manual is about: Windset

Summary of Met One 034A-L

  • Page 1

    Instruction manual met one 034a-l windset revision: 7/97 c o p y r i g h t ( c ) 1 9 8 0 - 1 9 9 7 c a m p b e l l s c i e n t i f i c , i n c ..

  • Page 2: Warranty and Assistance

    Warranty and assistance the met one 034a-l windset is 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...

  • Page 3: 034A-L Table of Contents

    I 034a-l 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. General ........................................................................1 2. Specifications ....................

  • Page 4

    034a-l table of contents ii 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........................................

  • Page 5

    1 met one 034a-l windset 1. General the met one 034a-l windset is an integrated cup anemometer and wind vane. The anemometer consists of three cups that sense the wind speed. These cups rotate on a vertical shaft that magnetically activates a sealed reed switch. The read switch opens and closes at a...

  • Page 6

    Met one 034a-l windset 2 n figure 3-1. 034a-l mounted on a 019alu horizontal crossarm. Attach the sensor cable to the six pin male connector on the 034a-l. Make sure the connector is properly keyed. Finger tighten the knurled ring. Route the sensor cable along the underside of the crossarm to the tr...

  • Page 7

    Met one 034a-l windset 3 adjustable resistance 1 2 6 3 4 5 connector pin-out pin 1 - azimuth signal pin 2 - azimuth reference pin 3 - azimuth excitation pin 4 - pulse out pin 5 - pulse reference pin 6 - shield connector (pin) 10k ohm azimuth potentiometer magnetically activated reed switch 1k ohm 9....

  • Page 8

    Met one 034a-l windset 4 table 5-1. Multipliers and offsets for wind speed and direction units datalogger type instruction number multiplier offset m s -1 cr10(x) or 21x 3 0.7990 0.2811 mph cr10(x) or 21x 3 1.789 .629 degrees cr10(x) or 21x 5 720 0 note: 034a-l windsets purchased directly from met o...

  • Page 9

    Met one 034a-l windset 5 07: real time (p77) 1: 0110 day,hour/minute 08: wind vector (p69) 1: 1 reps 2: 0 samples per sub-interval 3: 00 s, θu, & σ(θu) polar** 4: 1* wind speed [ wnds_m_s ] 5: 2* wind direction [ wndd_deg ] -input locations- 1 wnds_m_s 2 wndd_deg example 2. Sample 21x instructions ;...

  • Page 10

    Met one 034a-l windset 6 07: real time (p77) 1: 0110 day,hour/minute 08: wind vector (p69) 1: 1 reps 2: 0 samples per sub-interval 3: 00 s, θu, & σ(θu) polar** 4: 1* wind speed [ wnds_m_s ] 5: 2* wind direction [ wndd_deg ] -input locations- 1 wnds_m_s 2 wndd_deg * proper entries will vary with prog...

  • Page 11

    Met one 034a-l windset 7 example 3. Sample cr10(x) program when long leads are required ;{cr10x} ; *table 1 program 01: 10 execution interval (seconds) 01: pulse (p3) 1: 1 reps 2: 2* pulse channel 2 3: 22 switch closure, output hz 4: 1* loc [ wnds_m_s ] 5: 0.7990 mult 6: 0.2811 offset ;set the wind ...

  • Page 12

    Met one 034a-l windset 8 -input locations- 1 wnds_m_s 2 wndd_deg * proper entries will vary with program and datalogger channel and input location assignments. ** on the 21x use the 5000 mv input range and the a 5000 mv excitation voltage. *** average wind speed, average unit vector wind direction, ...

  • Page 13

    Met one 034a-l windset 9 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. The state climatologist, 19...

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    Campbell scientific companies campbell scientific, inc. (csi) 815 west 1800 north logan, utah 84321 united states www.Campbellsci.Com info@campbellsci.Com campbell scientific africa pty. Ltd. (csaf) po box 2450 somerset west 7129 south africa www.Csafrica.Co.Za sales@csafrica.Co.Za campbell scientif...