Vaisala PWD22 User Manual page 7

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APPENDIX C
NWS AND WMO CODE TABLES ............................................................. 117
INDEX......................................................................................................... 121
List of Figures
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11
Figure 12
Figure 13
Figure 14
Figure 15
Figure 16
Figure 17
Figure 18
Figure 19
Figure 20
Figure 21
Figure 22
Figure 23
Figure 24
Figure 25
List of Tables
Table 1
Table 2
Table 3
Table 4
Table 5
Table 6
Table 7
Table 8
Table 9
Table 10
Table 11
Table 12
Table 13
Table 14
Table 15
VAISALA _________________________________________________________________________ 5
PWD22 Present Weather Detector .......................................... 14
PWD22 Block Diagram ............................................................ 16
PWD22 Optical System ........................................................... 20
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RAINCAP Block Diagram ....................................................... 22
PWL111 Block Diagram ........................................................... 24
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RAINCAP Surface Signal (Heavy Rain Beginning)................ 25
Principle for Determining Precipitation Type............................ 28
LED Indicators on the PWC22 Board ...................................... 33
Recommended Location of PWD22. Alternative Ways to Mount
the Sensor (A or B). ................................................................. 38
Location of Jumpers and Connectors on the PWC22
Processor/Receiver Board ....................................................... 43
Installing PWD22 to the Support Arm ...................................... 43
Installing the Subassembly to the Mast with the Vaisala Clamp
Assembly.................................................................................. 44
Testing the Connector.............................................................. 44
Cabling Principle ...................................................................... 47
Maintenance Cable .................................................................. 48
Relay Connection: PWD22 Supplies ....................................... 52
Relay Connection: External Relay Supply ............................... 53
Illustration of Contents of Messages 0, 1, and 2...................... 58
Analog Current Output Connection.......................................... 77
Analog Current Output Connection (External Current Source) 78
Assembling the Opaque Glass Plates ..................................... 93
Removing PWT11.................................................................... 95
Opening Box Screws (1) .......................................................... 96
Removing the PWC22 Board................................................... 97
Removing the Rain Sensor ...................................................... 98
Manual Revisions....................................................................... 8
Related Manuals ........................................................................ 8
Model and Performance Table................................................. 13
Vaisala Present Weather Detector PWD22 Nomenclature...... 18
Nomenclature for Options of the Vaisala Present Weather
Detector PWD Family............................................................... 18
WMO SYNOP Code Limits ...................................................... 30
WMO METAR Code Limits ...................................................... 31
Default Communication Settings.............................................. 41
Commands for Changing Default Settings .............................. 41
Commands for Displaying and Changing Parameters............. 42
Receptable Connector Default Wiring ..................................... 46
PT-100 Sensor Cable Wiring ................................................... 47
Control Logic of Relay Controls 1 and 2 .................................. 51
Control Logic of Relay Control 1, 2, and 3............................... 51
Initial Settings and Corresponding Commands ....................... 56