Appendix A - Troubleshooting; Diagnostic Messages - ABB Navigator 550 Operating Instructions Manual

Navigator 500
Hydrazine analyzer
Appendix A – Troubleshooting
A.1 Diagnostic messages
The transmitter is programmed to display diagnostic messages
to provide information on servicing requirements and any other
conditions that develop during operation.
All diagnostic messages displayed on the transmitter are added
to the transmitter's Audit Log.
The tables below show icon types, diagnostic messages and
possible causes / suggested remedial action.
Note. The diagnostic icons in the following tables conform
to NAMUR 107.
Icon Diagnostic message
ADC Failure
(S1, S2, S3, S4)
Excessive Power
Int Comms Error
No Sample
(S1, S2, S3, S4)
NV Error Comm Bd
NV Error Main Bd
NV Error Proc Bd
NV Error
(S1, S2, S3, S4)
NV Error SW Key 1
Table A.1 Diagnostic messages (Sheet 1 of 2)
OI/AHM550–EN Rev. A
Possible cause and suggested action
Wet-section failure (temporary or permanent failure of analog to digital converter for wet-section
(1, 2, 3, 4).
Cycle power the transmitter. If problem persists replace electronics inside wet-section, contact local
service organization.
The wet-section is drawing more current than available.
The power being drawn from the transmitter exceeds the maximum permitted.
Check the wiring to all wet-sections connected for possible wiring problems.
Check any digital outputs powered from the +24V out terminal.
Ensure the limits are not exceeded.
Communication to wet-section failure (communication to one or all the wet-sections has failed during
cyclic reads).
Check wiring between transmitter and wet-sections.
No sample available (at wet-section).
Check sample flow rates are >50 ml/min.
NV error – comms. board (CRC Comms.). Failure of non-volatile memory on
communications board or permanent corruption of its data.
Cycle power the transmitter. If problem persists check all configuration parameters and correct any
errors. If problem still persists contact local service organization.
NV error – main board (CRC Comms.). Failure of non-volatile memory on main board or permanent
corruption of its data.
Cycle power the transmitter. If problem persists check all configuration parameters and correct any
errors. If problem still persists contact local service organization.
NV error – processor board (CRC Comms.). Failure of non-volatile memory on processor / display board
or permanent corruption of its data.
Cycle power the transmitter. If problem persists check all configuration parameters and correct any
errors. If problem still persists contact local service organization
Failure of wet-section (1, 2, 3, 4) non-volatile memory or permanent corruption of its data.
Cycle power the transmitter. If problem persists check all configuration parameters for
all wet-sections and correct any errors. If problem still persists contact local service organization.
NV error – software key 1 (CRC Comms.). Failure of non-volatile memory on software key 1 board or
permanent corruption of its data.
Cycle power to the device. If problem persists check all configuration parameters and correct any errors.
If problem still persists contact local service organization.
Diagnostic Icon NAMUR Status
Failure
Check function
Out of specification
Maintenance required
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