Campbell Scientific EC155 CO2 and H2O Closed-Path Gas Analyzer and EC100 Electronics with Optional CSAT3A 3D Sonic Anemometer - Manual (Page 8)

Table of Contents
7.4 Device Configuration Utility ............................................................. 23
8. EC100 Outputs .......................................................... 23
8.1 SDM Output ...................................................................................... 23
8.2 USB or RS-485 Output ...................................................................... 24
8.3 Analog Outputs .................................................................................. 26
9. Maintenance .............................................................. 26
9.1 Routine Maintenance ......................................................................... 26
9.2 Intake Filter Replacement .................................................................. 27
9.3 Cleaning Analyzer Windows ............................................................. 28
9.4 Zero and Span .................................................................................... 31
9.5 Replacing the EC155 Desiccant/CO
2
Scrubber Bottles ..................... 34
9.6 Factory Recalibration ........................................................................ 36
10. Datalogger Programming with CRBasic ................. 37
10.1 EC100() Instruction ........................................................................... 37
10.2 EC100Configure() Instruction ........................................................... 40
10.2.1 ConfigCmd 11 Zero-and-Span Control ...................................... 42
10.2.2 ConfigCmd 18 Heater Voltage ................................................... 42
10.3 Example CRBasic Program ............................................................... 43
11. Theory of Operation .................................................. 44
Appendices
A.
Filter Bandwidth and Time Delay ........................... A-1
B. Useful Equations ..................................................... B-1
C. EC155 Sample Cell and Intake Maintenance ........ C-1
C.1 Cleaning Sample Cell ...................................................................... C-1
C.2 Cleaning Intake Tube ...................................................................... C-1
C.2.1 Dust Blowout ........................................................................... C-1
C.2.2 Solvent Flush ............................................................................ C-2
D. Material Safety Data Sheets (MSDS) ..................... D-1
D.1 Magnesium Perchlorate MSDS ....................................................... D-1
D.2 Decarbite MSDS .............................................................................. D-2
E. EC155 Packing Information .................................... E-1
Figures
5-1. Dimensions of EC155 analyzer head with optional heated intake ....... 7
5-2. Dimensions of EC155 analyzer head without optional heated intake . 7
6-1. Exploded view of mounting the EC155 gas analyzer and the
CSAT3A sonic head ........................................................................ 9
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