MSENSE
®
DGA 9 7045899/02 EN – 11.2020 Page 4
Process flow ....................................................................................................................... 69
6.2.1 Zero measurement ...................................................................................................... 70
6.2.2 Vacuum generation ..................................................................................................... 71
6.2.3 Leak testing ................................................................................................................. 72
6.2.4 Filling level L1 .............................................................................................................. 73
6.2.5 Degasing ..................................................................................................................... 74
6.2.6 Filling level L2 .............................................................................................................. 75
6.2.7 Gas measurement ....................................................................................................... 76
6.2.8 Ventilation .................................................................................................................... 77
6.2.9 Draining ....................................................................................................................... 78
6.2.10 Ventilation .................................................................................................................... 78
6.2.11 Waiting (only when switching from measurement cell # 2 to measurement cell # 1) .... 79
Operation by means of device keyboard ............................................................................. 80
6.3.1 Cursor keys ................................................................................................................. 80
6.3.2 “Home” key .................................................................................................................. 80
6.3.3 Alphanumeric keypad .................................................................................................. 80
6.3.4 Contrast settings .......................................................................................................... 81
Main menu .......................................................................................................................... 82
Extraction status ...................................................................................................... 83
6.5.1 Acknowledge fault ............................................................................................ 86
6.5.2 Deactivate device (“unmount”) .......................................................................... 86
6.5.3 Activating the device (“mount”) ......................................................................... 86
Gas-in-oil measurements ......................................................................................... 87
6.6.1 Graph view ....................................................................................................... 88
6.6.2 Table view ........................................................................................................ 89
Duval triangle .......................................................................................................... 90
Alarm / Alarm history ............................................................................................... 90
6.8.1 Alarm acknowledegement ................................................................................ 92
6.8.2 Alarm settings of the selected alarm ................................................................. 92
Device settings ........................................................................................................ 93
6.10.1 Transformer-related settings ............................................................................. 94
6.10.1.1 DGA adjustment ........................................................................................ 94
6.10.2 Settings – analogue outputs .............................................................................. 95
6.10.3 Alarm limits and alarm sources ......................................................................... 97
6.10.3.1 Create new alarm ...................................................................................... 98