Campbell Scientific CPEC200 Closed-Path Eddy-Covariance System - Manual (Page 7)

Table of Contents
PDF viewers: These page numbers refer to the printed version of this document. Use the
PDF reader bookmarks tab for links to specific sections.
1. Introduction ................................................................. 1
2. Cautionary Statements ............................................... 1
3. Initial Inspection ......................................................... 2
4. Overview ...................................................................... 2
4.1 System Components ............................................................................. 2
4.1.1 Standard Components ................................................................... 2
4.1.1.1 EC155 Gas Analyzer .......................................................... 2
4.1.1.2 EC100 Electronics .............................................................. 3
4.1.1.3 CPEC200 Enclosure ........................................................... 3
4.1.1.4 CPEC200 Pump Module .................................................... 4
4.1.2 Optional Components ................................................................... 4
4.1.2.1 CR3000 Datalogger ............................................................ 4
4.1.2.2 NL115 or CFM100 Storage Module .................................. 5
4.1.2.3 CPEC200 Valve Module .................................................... 6
4.1.2.4 CSAT3A Sonic Anemometer Head .................................... 6
4.1.2.5 Barometer ........................................................................... 7
4.1.2.6 Carrying Cases ................................................................... 7
4.1.2.7 Enclosure Mounting Options .............................................. 7
4.1.3 Common Accessories .................................................................... 8
4.1.4 Support Software ........................................................................ 10
4.1.5 Replacement Parts ....................................................................... 11
4.2 Theory of Operation ........................................................................... 13
4.2.1 EC155 Gas Analyzer ................................................................... 13
4.2.2 CSAT3A Sonic Anemometer Head ............................................ 14
4.2.3 Valve Module .............................................................................. 14
4.2.4 Pump Module .............................................................................. 16
4.3 Specifications ..................................................................................... 17
5. Installation ................................................................. 17
5.1 Mounting ............................................................................................ 18
5.1.1 Support Structure ........................................................................ 18
5.1.2 Mount Enclosures ....................................................................... 18
5.1.3 Install EC Sensors ....................................................................... 19
5.2 Plumbing ............................................................................................ 21
5.2.1 Pump Module .............................................................................. 21
5.2.2 Zero/Span .................................................................................... 22
5.3 Wiring ................................................................................................ 23
5.3.1 Ground Connections ................................................................... 23
5.3.2 EC Sensor Cables ........................................................................ 24
5.3.3 Pump Module Cable.................................................................... 27
5.3.4 Apply Power ............................................................................... 27
i