ii
8. Establish Active Communications .......................... 14
8.1 Using a Personal Computer running PC200W........................................ 14
9. Checking the Datalogger Clock (Date/Time)
Setting ................................................................. 16
9.1 Using a Personal Computer running PC200W........................................ 16
10. Running the Datalogger Program and Viewing
Measurements ........................................................ 16
10.1 The Datalogger Program....................................................................... 16
10.2 Viewing/Monitoring Incoming Measurements ..................................... 17
10.3 Collecting and Viewing Recorded Data ................................................ 17
11. Maintenance ............................................................ 18
11.1 Enclosure .............................................................................................. 19
11.1.1 Cable Entries ............................................................................... 19
11.1.2 Desiccant ..................................................................................... 19
11.2 Regular Inspection ................................................................................ 19
11.2.1 General ........................................................................................ 19
11.2.2 Sensors ........................................................................................ 20
11.2.3 Power Supply .............................................................................. 21
12. And Finally ............................................................... 21
Appendix A. Basic Weather Station Program ........... A-1
A.1 Standard Program ................................................................................ A-1
A.2 Wiring of Sensors ................................................................................ A-1
A.3 Measurements ...................................................................................... A-2
A.4 Recorded Data ..................................................................................... A-3
A.5 Modifying the Program ........................................................................ A-4
A.6 Calculating ETo ................................................................................... A-4
Appendix B. Wind Direction Sensor Orientation ...... B-1
B.1 Determining True North and Sensor Orientation ................................. B-1
Appendix C. Troubleshooting .................................... C-1
C.1 Loss of Battery Power .......................................................................... C-1
C.2 No Response from the Datalogger ...................................................... C-2
C.3 Unreasonable or Unexpected Results are Displayed by the
Datalogger ....................................................................................... C-2
