Campbell-scientific CSAT3 3-D Sonic Anemometer Bedienungsanleitung PDF herunterladen (Seite 8)

Table of Contents

10.1 CRBasic CSAT3 () Instruction .......................................................... 19

10.2 EDLOG SDM-CSAT3 (P107) Instruction ........................................ 19

10.3 Datalogger Instruction Parameters .................................................... 19

10.4 Diagnostic Word ............................................................................... 22

10.5 SDMTrigger ()/SDM-Group Trigger (P110) ..................................... 23

10.6 Example CRBasic Datalogger Program ............................................ 23

10.7 Example EDLOG Datalogger Program ............................................. 28

11. Maintenance .............................................................. 37

11.1 Wicks................................................................................................. 38

11.2 Calibration ......................................................................................... 39

11.2.1 Cold Shifted Calibration ............................................................ 39

11.2.2 Test for Wind Offset .................................................................. 40

12. Select Backdoor Commands ................................... 42

Appendices

CSAT3 Orientation .................................................. A-1

A.1 Determining True North and Sensor Orientation ............................ A-1

A.2 Online Magnetic Declination Calculator ......................................... A-3

B. Serial Communications with the CSAT3 ............... B-1

B.1 CSAT3 RS-232 Commands ............................................................ B-1

B.2 CSAT3 Binary Data Output Format ................................................ B-3

B.3 Words 0 through 3 ........................................................................... B-4

B.4 Word 4 ............................................................................................. B-5

B.5 CSAT3 RS-232 Status Format ........................................................ B-5

C. CSAT3 Measurement Theory ................................. C-1

C.1 Theory of Operation ........................................................................ C-1

C.1.1 Wind Speed .............................................................................. C-1

C.1.2 Temperature ............................................................................. C-1

D. SDM Communications and Long Signal Cables .. D-1

D.1 Brief Description of SDM Clock Rates ........................................... D-1

D.2 CR3000 Example ............................................................................ D-2

D.3 CR23X Example ............................................................................. D-2

Figures

4-1. CSAT3 coordinate system and current captive mounting hardware

(s/n 0631 to current) ......................................................................... 6

4-2. CSAT3 coordinate system and captive mounting hardware (s/n

0631 to current) ................................................................................ 7

4-3. CSAT3 coordinate system, captive mounting hardware, and cup

washer (s/n 0107 to 0630) ................................................................ 7

4-4. CSAT3 coordinate system and original noncaptive mounting

hardware (s/n 0107 to 0630) ............................................................ 8

8-1. Typical average CSAT3 current drain at +12 VDC .......................... 17

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 73 74

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