ABB Navigator 550 Operating Instructions Manual page 4

Navigator 500
Hydrazine analyzer
8 Maintenance ................................................................. 53
8.1 Chemical solutions ................................................ 53
8.1.1 Reagent Solution - 5M (20% W/V) Sodium
Hydroxide .................................................. 53
8.1.2 Standard solution ....................................... 53
8.2 Scheduled servicing .............................................. 53
8.2.1 Weekly ....................................................... 53
8.2.2 6-monthly ................................................... 54
8.2.3 12-monthly ................................................. 54
8.2.4 Replacing the microporous disc ................. 54
8.2.5 Replacing plastic tubing ............................. 55
8.3 Shut-down procedure ........................................... 57
8.4 Refurbishing the hydrazine sensor assembly .......... 58
8.4.1 Hydrazine sensor removal .......................... 58
8.4.2 Dismantling and cleaning ........................... 58
8.4.3 Cleaning the platinum anode and sensor
ceramic ...................................................... 59
8.4.4 Reassembly and refitting ............................ 59
9 Specification - analyzer ............................................... 60
10 Specification - transmitter ........................................... 61
11 Specification - wet-section ......................................... 62
Appendix A - Troubleshooting ........................................ 63
A.1 Diagnostic messages ............................................ 63
A.2 Checking the temperature input ............................ 65
A.3 Incorrect or erratic flow rate sensor readings ......... 65
A.4 Simple electronic check ......................................... 65
A.5 Unscheduled servicing ........................................... 66
A.5.1 Wet-section malfunction ............................. 66
A.5.2 Calibration fail alarm ................................... 66
A.5.3 Hydrazine sensor check ............................. 66
Appendix B - Multiple wet-section setup ....................... 67
B.1 Configuring the device address ............................. 67
B.2 Serial connections ................................................. 68
Appendix C - Spare parts ................................................ 69
C.1 Navigator 500 hydrazine consumables .................. 69
C.2 Navigator 500 hydrazine wet-section ..................... 69
C.3 Navigator 540 transmitter ...................................... 72
2 OI/AHM550-EN Rev. A