Vaisala CT25K - Index

Ceilometer CT25K
CT25K-U059en-2.1 User’s Guide
123
INDEX
A
Alarm check ...................................................87
Alarms
Laser failure...............................................96
Laser temperature shut-off..........................96
Receiver failure..........................................96
Voltage failure............................................96
ANet
TM
.............................................................7
ANet™ interface DMX611 .............................80
20-pin connector on the front panel ............81
Connector layout ........................................81
DIP switch settings.....................................82
LED indicators ...........................................80
Phone jack..................................................81
Angle correction .............................................23
Angle measurement
Parameter settings ......................................23
Tilt feature .................................................14
APD................................................................57
Atmospheric transmittance..............................50
Avalanche photodiode (APD) ...................57, 60
Average laser power .........................................8
B
Background light ............................................37
Backscatter .......................................................1
Backscatter coefficient....................................51
Backscatter signal...........................................49
Battery charger ...............................................68
Bulk charge................................................68
Float charge................................................68
Over charge................................................68
Trickle charge ............................................68
Beam divergence ..............................................8
Beamsplitter ...................................................57
Bird droppings................................................93
Blink timer .....................................................61
Board frame DMF51.......................................62
Removing boards......................................116
Replacing boards......................................117
C
Cable connections...........................................15
Ceilometer interface board DCT51..................69
Centering..............................................102, 109
Changing a prevailing parameter value ...........22
Character code..................................................5
Characteristics of LIDAR measurement ..........56
CLOSE command ...........................................26
Coaxial cable
Removal...................................................111
Replacement.............................................112
Compensation adjustments............................105
Compensation fiber
Replacement.............................................113
Connectors of the DMF51.............................101
Contrast threshold...........................................52
CPU Board..................................................... 63
CT-VIEW ...................................................... 89
D
Dangerous procedure warnings........................ xi
Data messages................................................ 33
Data message No. 1 ................................... 33
Data message No. 2 ................................... 36
Data message No. 3 ................................... 38
Data message No. 4 ................................... 39
Data message No. 5 ................................... 39
Data message No. 6 ................................... 39
Data message No. 7 ................................... 40
DMX611 operation (option)....................... 41
Status message "S" .................................... 42
DC Converter DPS52 ..................................... 67
Internal switch settings .............................. 68
LED functions ........................................... 68
Output voltages.......................................... 69
Specifications ............................................ 68
Detector ........................................................... 8
Digital display DD50 ..................................... 83
E
Earthing ...................................... See Grounding
EEPROM................................................70, 117
Electrostatic discharge .................................... xi
Environmental conditions................................. 9
ESD ................................................................ xi
ESD protection bag ........................................ 99
External connections...................................... 15
External connector J1....................................... 3
External connector J2....................................... 3
External connector J3....................................... 4
External connector J4....................................... 6
Extinction coefficient..................................... 51
Extinction normalization................................ 52
F
Failure diagnosis............................................ 98
Fiberglass pedestal........................................... 3
Focal length ..................................................... 9
Foundation..................................................... 11
Foundation screws.......................................... 11
Frame DMF51................................................ 62
G
GET
GET ALGORITHM ................................... 46
GET DATA_AQC ..................................... 46
GET FACTORY ........................................ 47
GET MESSAGE ........................................ 47
GET OPER_MODE ................................... 47
GET PORT................................................ 47
GET STATUS ......................................42, 48
GET UNIT_ID........................................... 47
GET command ..........................................22, 31
Grounding...................................................... 16