MA-025 – DGA 900 Operator Guide – Rev 2.0 12-Apr-19 Page 4 of 92
List of Tables and Figures
Page
Figure 1-1: Inside the DGA 900 ................................................................................................................................................ 7
Table 1-1: Hub front panel LED lights ................................................................................................................................... 9
Table 3-1: Measurements ........................................................................................................................................................ 12
Table 4-1: Type tests .................................................................................................................................................................. 14
Figure 5-1: Fuse holder ............................................................................................................................................................. 15
Table 5-1: External LED status indicators ........................................................................................................................ 15
Figure 6-1: Inside the Hub – LCD top left.......................................................................................................................... 16
Figure 6-2: Ethernet / USB HMI connection .................................................................................................................... 17
Figure 6-3: Log-in page............................................................................................................................................................. 18
Table 6-1: User access rights ................................................................................................................................................. 18
Figure 6-4: Local HMI: Quick Access page ....................................................................................................................... 19
Figure 6-5: Dashboard .............................................................................................................................................................. 20
Figure 6-6: Quick Access .......................................................................................................................................................... 21
Figure 6-7: Quick Access – Rapid Mode ............................................................................................................................ 22
Figure 6-8: Active Alarms ......................................................................................................................................................... 23
Figure 6-9: Measurements ...................................................................................................................................................... 24
Figure 6-10: Duval Diagnostic ............................................................................................................................................... 25
Figure 6-11: Gas Ratio ............................................................................................................................................................... 25
Figure 6-12: DGA Scheduler ................................................................................................................................................... 26
Figure 6-13: Gas Ratio Settings............................................................................................................................................. 26
Figure 6-14: Gas Ratio Settings – Ratio 1 definition .................................................................................................... 26
Figure 6-15: Relative Saturation Settings ........................................................................................................................ 27
Figure 6-16: Gas RoC Configuration ................................................................................................................................... 27
Figure 6-17: Analog Inputs Rate of Change Configuration ..................................................................................... 28
Figure 6-18: Gas Alarms Configuration............................................................................................................................. 29
Figure 6-19: Hydrogen alerts ................................................................................................................................................. 30
Figure 6-20: Gas Ratio Alarms Configuration ................................................................................................................ 30
Figure 6-21: Gas Ratio Alarms Configuration – Ratio 1 High-High Gas Rate of Change .......................... 30
Figure 6-22: Gas RoC Configuration ................................................................................................................................... 31
Figure 6-23: Relative Saturation Alarms Configuration ............................................................................................ 32
Figure 6-24: Relative Saturation Alarms Configuration – High-High .................................................................. 32
Figure 6-25: Analog Inputs Alarms Configuration ....................................................................................................... 32
Figure 6-26: Analog Inputs RoC Alarms Configuration.............................................................................................. 33
Figure 6-27: Digital Inputs Alarms Configuration ......................................................................................................... 33
Figure 6-28: Digital Inputs Transition Total Alarms Configuration ...................................................................... 34
Figure 6-29: Peripheral Scheduler ....................................................................................................................................... 35
Figure 6-30: Analog Inputs Configuration ....................................................................................................................... 35
Figure 6-31: Analog Input 4 (4-20 mA Temperature Sensor) .................................................................................. 36
Figure 6-32: Digital Input Configuration ........................................................................................................................... 36
Figure 6-33: Input Measurements ....................................................................................................................................... 36
Figure 6-34: Communications Settings ............................................................................................................................. 37
Figure 6-35: Date & Time ......................................................................................................................................................... 38
Figure 6-36: SMS Alerting ......................................................................................................................................................... 38
Figure 6-37: Firewall configuration ..................................................................................................................................... 39
Figure 6-38: Communication Services .............................................................................................................................. 40
Figure 6-39: Measurement Settings ................................................................................................................................... 41
Figure 6-40: Controller Reprogramming .......................................................................................................................... 42
Figure 6-41: Upgrade in progress ........................................................................................................................................ 42
Figure 6-42: I/O Board Reprogramming ........................................................................................................................... 43
Figure 6-43: Upgrade in progress ........................................................................................................................................ 43
Figure 6-44: Oxygen Sensor ................................................................................................................................................... 44