Vaisala FD12P - Manual (Page 8)

User's Guide _______________________________________________________________________
8 ______________________________________________________ M210296en-A
Figure 15 Wiring the Connector for the LM11 Background Luminance
Meter ........................................................................................ 49
Figure 16 Wiring the Day/Night Photo Switch.......................................... 50
Figure 17 Communication Option ............................................................ 51
Figure 18 RS-485 Communication Option ............................................... 52
Figure 19 Wiring the Modem.................................................................... 53
Figure 20 Analog Current Loop Option .................................................... 55
Figure 21 FD12P Optical System............................................................. 96
Figure 22 FDT12B Transmitter Block Diagram ........................................ 97
Figure 23 FDR12 Receiver Block Diagram .............................................. 98
Figure 24 DRI21 Block Diagram in the FD12P Application.................... 100
Figure 25 DRD12 Block Diagram........................................................... 101
Figure 26 FDP12 Control Unit Block Diagram ....................................... 102
Figure 27 Optical Raw Data (in Rain) .................................................... 103
Figure 28 Optical Signal Amplitude Distribution (in Rain) ...................... 104
Figure 29 DRD12 Surface Signal (Heavy Rain Beginning).................... 104
Figure 30 Precipitation Type Determination Principle............................ 109
Figure 31 Assembling the FDA13 Calibrator.......................................... 122
Figure 32 DTS14 Sensor Holder Assembly to Mast .............................. 125
Figure 33 Removing the Optical Units ................................................... 127
Figure 34 Replacing the Optical Units.................................................... 128
Figure 35 Removing the DRD12 Rain Detector..................................... 129
Figure 36 Basic Electronics Enclosure Wiring ....................................... 148
Figure 37 Test Points, Transmitter......................................................... 151
Figure 38 Test Points, Receiver............................................................. 152
List of Tables
Table 1 Manual Revisions..................................................................... 12
Table 2 Related Manuals ...................................................................... 12
Table 3 Basic Set .................................................................................. 23
Table 4 Options..................................................................................... 23
Table 5 Mains Cable Selection ............................................................. 35
Table 6 Communication Cable Lengths................................................ 35
Table 7 Transmit Frequencies of the DMX21 Modem Board ............... 53
Table 8 LED Indicators of the DMX21 Modem ..................................... 54
Table 9 Manual Controls of the DMX21 Modem................................... 54
Table 10 Default Communication Settings.............................................. 57
Table 11 Commands for Changing the Default Settings ........................ 57
Table 12 Commands for Displaying and Changing the Parameters ...... 57
Table 13 Settings and Corresponding Commands................................. 60
Table 14 Routine Command for Maintenance ........................................ 60
Table 15 Status Report Command ......................................................... 60
Table 16 Transmitter Status Correspondence between MITRAS and
FD12P ...................................................................................... 67
Table 17 Receiver Status Correspondence between MITRAS and FD12P67
Table 18 HELP Command Sets.............................................................. 70
Table 19 Commands for Displaying or Setting Weather Analysis
Parameters............................................................................... 73