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