Diagnostic Messages - ABB Navigator 540 Instruction Manual

Diagnostic messages

The transmitter is programmed to display diagnostic messages that
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.

When a diagnostic condition is detected, the associated
NAMUR icon, plus the highest priority diagnostic
message, is displayed in the Status Bar when the
transmitter is in Operator View mode

If the status bar displays a diagnostic message, press the
key to see all diagnostic messages.
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 Samples
No Sample
(S1, S2, S3, S4)
NV Error Comm Bd
NV Error Main Bd
NV Error Proc Bd
Table 1 Transmitter diagnostic messages (Sheet 1 of 3)
12
Wet-section failure (temporary or permanent failure of analog to digital converter for wet-section (1, 2, 3, 4).
Cycle power to 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 level.
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.
Sodium multi-stream only
No samples available (at wet-section).
If a multiple wet-section setup, the transmitter cannot detect any samples flowing into the wet-section.
No sample available (at wet-section).
Sodium / Hydrazine
Check sample flow rates are >50 ml/min.
Low level dissolved oxygen
Check sample flow rates are >100 ml/min.
NV error – comms. board (CRC / Comms.). (Failure of non-volatile memory on communications board or permanent
corruption of its data).
Cycle power to 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 to 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 to the transmitter.
If problem persists check all configuration parameters and correct any errors.
If problem still persists contact local service organization
Diagnostic Icon
Possible cause and suggested action
NAMUR Status
Failure
Check function
Out of specification
Maintenance required
CI/AWT540–EN Rev. C