Campbell Scientific HydroSense® Soil Water Content System (CS620, CD620) - Manual (Page 3)

HydroSense Table of Contents
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1. General Description.....................................................1
1.1 Introduction ..............................................................................................1
1.2 HydroSense Modes...................................................................................2
2. Specifications ..............................................................2
3. Unpacking and Setup ..................................................3
4. Water Content Measurement Mode............................4
4.1 Introduction ..............................................................................................4
4.2 Display Information..................................................................................4
4.3 Description of Water Content Measurement Mode ..................................5
4.4 Selecting Probe Rod Length .....................................................................5
4.5 Measuring Volumetric Water Content......................................................6
4.6 Measurements in Special Materials ..........................................................6
5. Water Deficit Mode ......................................................6
5.1 Description of Water Deficit Mode ..........................................................6
5.2 Display Information..................................................................................6
5.3 Calibration—Setting the Lower and Upper Reference Levels .................7
5.4 A Water Deficit Mode Example ...............................................................8
6. Proper Measurement Technique and Method
Limitations ................................................................9
6.1 Probe Rod Insertion ................................................................................10
6.2 Soil Factors Which Can Affect the Measurement—Clay, Soil
Electrical Conductivity, Organic Matter and Rocks ..........................10
6.3 Rod Length and Insertion Angle.............................................................11
6.4 Interpreting Measurement Results ..........................................................11
7. Description of HydroSense Measurement Method.11
8. Maintenance ...............................................................13
8.1 Replacing Battery ...................................................................................13
8.2 Rod Installation/Replacement.................................................................13
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