________________________________________________________________________________
VAISALA ________________________________________________________________________ 5
Mounting Transmitter Measurement Unit .................... 114
Mounting PWD to Support Arm.................................... 118
Connecting Signal Lines to Transmitter Interface Unit 119
Mounting and Connecting Optional TERMBOX-9000
(Junction Box) .............................................................. 121
Connecting Power Cable to Transmitter Interface Unit122
Finalizing On-site Receiver Assembly .............................. 123
Orientation of Support Unit .......................................... 123
Foundation Level Differences ...................................... 123
Tilting the Receiver Mast ........................................ 123
Mounting Optional Obstruction Light LT31OBS........... 124
Mounting Receiver Measurement Unit......................... 124
Connecting Signal Lines to Receiver Interface Unit .... 125
Mounting and Connecting Optional TERMBOX-1200
(Junction Box) .............................................................. 127
Connecting Communication and Power Cables .......... 128
Connecting Communication Cable to Receiver
Interface Unit........................................................... 128
Connecting Power Cable to Receiver
Interface Unit........................................................... 128
Switching on LT31 System .......................................... 128
Double-checking Transmitter Alignment...................... 131
Startup Procedure ................................................................ 132
LT Maintenance Interface ................................................. 132
Connection to Maintenance Terminal .......................... 132
Settings for Maintenance Terminal .............................. 134
Entering and Exiting Command Mode ......................... 134
OPEN Command .................................................... 135
CLOSE Command .................................................. 135
Initial Settings.................................................................... 135
Checking Operation .......................................................... 138
Final Alignment ................................................................. 139
Calibration ......................................................................... 139
Finalizing Installation........................................................... 140
Mounting Measurement Head Cover ................................ 140
Closing Interface Units ...................................................... 142
Mounting Interface Unit Covers ........................................ 142
Disassembly for Transportation ......................................... 144
CHAPTER 5
OPERATION............................................................................................... 145
LT31 Commands .................................................................. 145
Entering and Exiting Command Mode .............................. 145
OPEN Command ......................................................... 145
CLOSE Command ....................................................... 147
Available Commands ........................................................ 147
Command Completion ................................................. 147
Terminal Line Adjustment ................................................. 153
Command Polling.............................................................. 153
CRC16 Checksum ....................................................... 155
Menu-driven Operation ........................................................ 156
Submenus ......................................................................... 157
Configuration................................................................ 157
Item List .................................................................. 158
Free-form Input ....................................................... 158
System Status .............................................................. 158