Campbell-scientific 237-L Leaf Wetness Sensor Manual de usuario descargar pdf (Pagina 3)

237 Table of Contents

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1. Introduction..................................................................1

1.1 Specifications............................................................................................1

2. Wiring............................................................................ 1

3. Programming ...............................................................2

3.1 Measurement of Vs / Vx...........................................................................2

3.2 Calculating Sensor Resistance..................................................................2

3.3 Interpreting Resistance Values .................................................................3

3.4 Calculating Wet Time Fraction.................................................................3

4. Programming Examples..............................................4

4.1 CR1000 Program Example .......................................................................4

4.2 CR200(X) Programming ..........................................................................4

4.3 CR10(X) Programming Example .............................................................5

5. Plant Pathology Application .......................................6

5.1 Sensor Preparation....................................................................................6

5.2 Plant Pathology Application Programming ..............................................7

5.3 Sensor Deployment...................................................................................7

5.4 Calibration ................................................................................................7

6. References ...................................................................8

Figures

1. 237 Sensor Schematic.................................................................................1

2. Mounting the 237 Sensor............................................................................7

Tables

1. Connections to Campbell Scientific Dataloggers .......................................1

2. Measurement Instructions, Parameters, Results .........................................2

3. 237 Resistance Interpretations....................................................................3

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Campbell-scientific 237-L Leaf Wetness Sensor Manual de usuario Pagina 3