Campbell Scientific PWS100 Present Weather Sensor - Manual (Page 8)

PWS100 Table of Contents
8.3 Additional Sensor Connections............................................................. 8-3
8.3.1 Using a CS215-PWS on the PWS100......................................... 8-4
8.3.2 Using Other Sensors on the PWS100.......................................... 8-4
8.4 PWS100 Control Unit........................................................................... 8-5
8.5 Measurement Signal Processing ........................................................... 8-5
8.6 Algorithm Description .......................................................................... 8-6
8.6.1 Detecting and Classifying Precipitation ...................................... 8-6
8.6.2 Precipitation Intensity ................................................................. 8-8
8.6.3 Precipitation Accumulation....................................................... 8-10
8.6.4 Present Weather ........................................................................ 8-10
8.6.4.1 Precipitation Types .......................................................... 8-10
8.6.4.2 Visibility Types ............................................................... 8-11
8.6.4.3 Weather Classes............................................................... 8-11
8.6.4.4 Weather Code Selection .................................................. 8-11
8.6.5 Visibility.................................................................................... 8-11
8.7 Applications ........................................................................................ 8-12
8.8 Internal Monitoring............................................................................. 8-13
9. Maintenance ............................................................. 9-1
9.1 General.................................................................................................. 9-1
9.2 Cleaning ................................................................................................ 9-1
9.3 Calibration............................................................................................. 9-2
10. Troubleshooting................................................... 10-1
10.1 Introduction....................................................................................... 10-1
10.2 Possible Problems ............................................................................. 10-1
10.2.1 No response from PWS100..................................................... 10-1
10.2.2 PWS100 responds but no data output given ........................... 10-1
10.2.3 Ice has formed in the end of the hoods.................................... 10-2
10.2.4 The visibility output is clearly in error.................................... 10-2
10.2.5 The sensor does not detect particles during a precipitation
event .................................................................................... 10-2
10.2.6 The sensor detects particles when there are none present ....... 10-2
10.2.7 The OS update did not work ................................................... 10-3
Appendices
A. PWS100 Output Codes ........................................... A-1
B. Wiring ....................................................................... B-1
C. Cable Selection........................................................C-1
C.1 Power Cable ........................................................................................ C-1
C.2 Communication Cable......................................................................... C-3
D. Software Flowchart .................................................D-1
E. Menu System Map ................................................... E-1
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