Instruction manual

Table of Contents

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

2. Cautionary Statements ............................................... 1

3. Initial Inspection ......................................................... 1

4. Quickstart .................................................................... 1

5. Overview ...................................................................... 4

6. Specifications ............................................................. 4

7. Installation ................................................................... 6

7.1 Wiring to Datalogger ........................................................................... 6

7.2 Datalogger Programming ..................................................................... 7

7.2.1 Therm109() Instruction ................................................................. 7

7.3 Water Temperature Installation ............................................................ 8

7.4 Soil Temperature Installation ............................................................... 8

8. Operation ..................................................................... 8

8.1 Sensor Schematic ................................................................................. 8

8.2 Measurement and Output Linearization ............................................... 8

8.3 Electrically Noisy Environments ......................................................... 9

8.4 Long Cable Lengths ............................................................................. 9

9. Troubleshooting and Maintenance ......................... 10

9.1 Troubleshooting ................................................................................. 10

9.2 Maintenance ....................................................................................... 10

9.3 Calibration.......................................................................................... 10

10. Attributions and References .................................... 11

Appendices

Importing Short Cut Code Into CRBasic Editor ... A-1

B. Example Programs ................................................. B-1

C. Conversion of Thermistor Resistance or

Voltage Ratio to Temperature .............................. C-1