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DOTX-45 3 -
6.24 Configuration Menu [CONFIG] ........................................................................................................ 34
6.25 Control Menu [CONTROL].............................................................................................................. 37
Figure 6-3 Control Relay Example, Hysteresis and Two opposite Phase Options ..................................... 40
Figure 6-4 Alarm Relay Example ........................................................................................................... 41
6.26 Diagnostics Menu [DIAG] .................................................................................................................. 42
PART 7 CALIBRATION ................................................................................................................................ 46
7.1 Oxygen Calibration ............................................................................................................................... 46
7.11 Oxygen Span Cal .............................................................................................................................. 46
7.12 Dissolved Oxygen Span Cal (1-spl) ................................................................................................... 46
7.13 Dissolved Oxygen Air Span Cal (% sat) ............................................................................................. 47
7.14 Dissolved Oxygen Zero Cal ............................................................................................................... 48
7.2 Temperature Calibration........................................................................................................................ 50
PART 8 PID CONTROLLER DETAILS ....................................................................................................... 51
8.1 PID Description .................................................................................................................................... 51
8.2 PID Algorithm ...................................................................................................................................... 51
Figure 8-1 ISA (Ideal) PID Equation ...................................................................................................... 52
8.3 Classical PID Tuning ............................................................................................................................ 53
8.4 Manual PID Override Control ............................................................................................................... 54
8.5 Common PID Pitfalls ............................................................................................................................ 54
PART 9 SYSTEM MAINTENANCE .............................................................................................................. 56
9.1 General ................................................................................................................................................. 56
9.2 Analyzer Maintenance........................................................................................................................... 56
9.3 Sensor Maintenance .............................................................................................................................. 56
9.31 Lead Anode Replacement .................................................................................................................. 57
PART 10 TROUBLESHOOTING .................................................................................................................. 58
10.1 General ................................................................................................................................................. 58
10.2 External ................................................................................................................................................ 58
10.3 Analyzer ............................................................................................................................................... 59
10.31 Display ............................................................................................................................................. 60
Figure 10-1 Display Messages .................................................................................................................. 61
Figure 10-1 Display Messages (continued) .............................................................................................. 62
10.4 Sensor ................................................................................................................................................... 62
Figure 10-2 Pt1000 RTD Table ............................................................................................................... 63
Figure 10-3 Reference Barometric Pressure Conversion ........................................................................ 64
Figure 10-4 Reference Water Saturated Concentration of Oxygen ......................................................... 65
SPARE PARTS .................................................................................................................................................. 66
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