Campbell Scientific HFP01SC Hukseflux Self-Calibrating Soil Heat Flux Plate - Manual (Page 5)

Table of Contents
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1. Introduction ................................................................. 1
2. Cautionary Statements ............................................... 1
3. Initial Inspection ......................................................... 1
4. Overview ...................................................................... 1
5. Specifications ............................................................. 2
6. Installation ................................................................... 3
6.1 Placement in Soil.................................................................................. 3
6.2 Wiring .................................................................................................. 6
6.3 Programming ........................................................................................ 6
6.3.1 Example 1. Sample CR3000 Program Using a Differential
Measurement Instruction ........................................................... 6
6.3.2 Example 2. Sample CR10(X) Program Using a Single-Ended
Measurement Instruction ........................................................... 9
6.3.3 Example 3. Sample CR23X Program Using a Differential
Measurement Instruction ......................................................... 13
6.3.4 Example 4. Sample CR10X Program Using External Power
and Relay ................................................................................. 17
6.4 Soil Heat Flux and Storage ................................................................. 22
6.5 In-Situ Calibration Theory ................................................................. 23
7. Maintenance .............................................................. 24
8. References ................................................................ 24
Figures
6-1. Placement of heat flux plates ............................................................... 3
6-2. HFP01SC plate ..................................................................................... 4
Tables
6-1. Datalogger Connections for a Single-Ended Measurement ................. 5
6-2. Datalogger Connections for a Differential Measurement ..................... 5
6-3. Wiring for Example 1 ........................................................................... 6
6-4. Wiring for Example 2 ........................................................................... 9
6-5. Wiring for Example 3 ......................................................................... 13
6-6. Sensor Wiring for Example 4 ............................................................. 17
6-7. Datalogger-to-A21REL-12 Wiring for Example 4 ............................. 17
6-8. Hukseflux and Campbell Scientific Variable Names ......................... 24
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