Ceilometer CT25K
CT25K-U059en-2.1 User’s Guide
iii
7.1.2 Instructions................................................................................. 89
7.2 Troubleshooting .......................................................................................... 93
7.2.1 Warnings.................................................................................... 93
7.2.2 Alarms........................................................................................ 96
7.2.3 Miscellaneous............................................................................. 97
7.3 Failure Diagnosis ........................................................................................ 98
8. REPAIR.................................................................................................................. 99
8.1 General......................................................................................................... 99
8.2 Writing conventions used........................................................................... 99
8.3 Start-up procedure for replacement (all parts).........................................100
8.4 Transmitter CTT21......................................................................................101
8.4.1 Removal....................................................................................101
8.4.2 Replacement .............................................................................102
8.4.3 Compensation adjustments .......................................................105
8.5 Receiver CTR21..........................................................................................108
8.5.1 Removal....................................................................................108
8.5.2 Replacement .............................................................................109
8.5.3 Coaxial Cable Replacement ......................................................111
8.5.3.1 Removal....................................................................................111
8.5.3.2 Replacement .............................................................................112
8.6 Compensation Fiber...................................................................................113
8.6.1 Compensation Fiber replacement..............................................113
8.7 Optics Monitor CTL21 ................................................................................114
8.7.1 Removal....................................................................................114
8.7.2 Replacement .............................................................................115
8.8 Boards of Board Frame DMF51 .................................................................116
8.8.1 Removing boards ......................................................................116
8.8.2 Replacing boards ......................................................................117
8.8.2.1 Parameter settings of Ceilometer Interface board DCT51..........117
8.9 Line & Power Subassembly CTP241 .........................................................117
8.9.1 Removal....................................................................................117
8.9.2 Replacement .............................................................................119
8.9.3 Internal Heater Subassembly CT25039 Replacement................120
8.9.4 Battery 4592 replacement instructions.......................................121
INDEX.............................................................................................................................123
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