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TABLE OF CONTENTS
1. Introduction .............................................................................................. 1
2. Operation ...................................................................................................2
2.1 Installation .................................................................................................2
2.2 Connecting .................................................................................................7
2.2.1 Connect to METER Data Logger .........................................................7
2.2.2 Connect to a Non-METER Logger ......................................................8
2.3 Communication ..........................................................................................9
3. System ....................................................................................................... 10
3.1 Specifications ..........................................................................................10
3.2 Components .............................................................................................13
3.3 Theory ......................................................................................................14
3.3.1 Volumetric Water Content ...............................................................14
3.3.2 Temperature ....................................................................................15
3.3.3 Electrical Conductivity ....................................................................15
3.3.4 Converting Bulk EC to Pore EC .........................................................15
3.3.5 Pore Water Versus Saturation Extract EC ........................................16
4. Service ....................................................................................................... 18
4.1 Calibrations ..............................................................................................18
4.1.1 Mineral Soils ...................................................................................18
4.1.2 Soilless Media .................................................................................18
4.1.3 Apparent Dielectric Permittivity ......................................................19
4.2 Cleaning ...................................................................................................19
4.3 Troubleshooting ........................................................................................19
18225-01
4.26.2018