Campbell Scientific IRGASON Integrated CO2/H2O Open-Path Gas Analyzer and 3D Sonic Anemometer - Manual (Page 8)

Table of Contents
9. Maintenance .............................................................. 25
9.1 Routine Maintenance ......................................................................... 25
9.2 Wick Maintenance ............................................................................. 25
9.2.1 Sonic Wicks ............................................................................... 25
9.2.2 Gas Analyzer Wicks ................................................................... 27
9.3 Gas-Analyzer Window Cleaning ....................................................... 28
9.4 Zero and Span.................................................................................... 28
9.5 Replacing Desiccant and Scrubber Bottles ........................................ 32
9.6 Factory Recalibration ........................................................................ 33
10. Datalogger Programming ......................................... 34
10.1 EC100() Instruction ........................................................................... 34
10.2 EC100Configure() Instruction ........................................................... 37
10.2.1 ConfigCmd 11 Zero-and-span Control ....................................... 39
10.2.2 ConfigCmd 18 Heater Voltage ................................................... 39
10.3 Example CRBasic Program ............................................................... 40
11. Theory of Operation .................................................. 41
11.1 IRGASON Sonic Anemometer ......................................................... 41
11.1.1 Wind Speed ................................................................................ 41
11.1.2 Temperature ............................................................................... 42
11.2 IRGASON Gas Analyzer .................................................................. 43
11.3 Theory References ............................................................................. 44
Appendices
A.
Filter Bandwidth and Time Delay ........................... A-1
B. Equations ................................................................. B-1
C. Material Safety Data Sheets (MSDS) ..................... C-1
C.1 Magnesium Perchlorate MSDS ....................................................... C-1
C.2 Decarbite MSDS ............................................................................. C-2
Figures
5-1. IRGASON dimensions, side view ....................................................... 6
5-2. IRGASON dimensions, front view ...................................................... 6
6-1. Exploded view of mounting the IRGASON ........................................ 9
6-2. EC100-enclosure mounting bracket mounted on a vertical mast
(left) and a tripod leg (right) .......................................................... 10
6-3. Exploded view of mounting the EC100 enclosure ............................ 10
6-4. Mounting the IRGASON Temperature Probe ................................... 11
6-5. EC100 electronics front panel with enhanced barometer. At left,
as received from Campbell Scientific. At right, all wiring and
connections complete. .................................................................... 12
6-6. Base of EC100 enclosure .................................................................. 13
6-7. Sensor connections to EC100 ............................................................ 13
7-1. Main window of ECMon software .................................................... 20
7-2. Setup window in ECMon .................................................................. 21
8-1. An example of USB data output in terminal mode ............................ 23
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