ABB Navigator 540 Instruction Manual page 13

Icon Diagnostic message
NV Error
(S1, S2, S3, S4)
NV Error SW Key 1
Temp Failure
(S1, S2, S3, S4)
Calibrating
(S1, S2, S3, S4)
In Hold Mode
(S1, S2, S3, S4)
Recovery
(S1, S2, S3, S4)
Regeneration
Simulation On
Cal. Failed
(S1, S2, S3, S4)
Flow Sample
(S1, S2, S3, S4)
Displayed only if
flowmeter is fitted
Table 1 Transmitter diagnostic messages (Sheet 2 of 3)
CI/AWT540–EN Rev. C
Failure of wet-section (1, 2, 3, 4) non-volatile memory or permanent corruption of its data).
Cycle power to 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.
Temperature sensor failure for wet-section1 (2, 3, 4).
The temperature compensator or associated connections are either open-circuit or short-circuit –
check wiring / temperature compensator connections to the PCB.
Calibrating. / Displayed during calibration of wet-section (1, 2, 3, 4).
On a multiple wet-section setup, this inhibits other wet-sections being calibrated.
Wet-section (1, 2, 3, 4) in manual hold mode via front panel.
Analog outputs and alarms are held. To exit manual hold press the
appropriate wet-section(s).
Wet-section(s) performing a recovery stage after calibration, regeneration (sodium only) or after
exiting Man. Valve Control.
During the recovery period, outputs and alarms are held if Hold Outputs is enabled.
Sodium only
A regeneration routine is being run.
Refer to the sodium wet-section Operating instructions (OI/ASO550-EN) for details of this routine.
The analyzer is operating in Simulation mode.
Last wet-section calibration failed.
Sodium
Check reagent is entraining (bubbles at end of entrainment tube, check reagent is fresh).
Check the calibration solution (sodium / hydrazine) – refer to the sodium wet-section Operating instructions
(OI/ASO550-EN).
Hydrazine
Check the calibration solution – refer to the hydrazine wet-section Operating instructions (OI/AHMO550-EN).
Low level dissolved oxygen
Refer to the low level dissolved oxygen wet-section Operating instructions (OI/ADSO550-EN).
Low level dissolved oxygen
Sample flow rate is less than 100 ml/min (6.10 cu in./min).
Increase the sample flow to the wet-section.
Sodium / Hydrazine
Sample flow rate is less than 50 ml/min. (3.05 cu in./min.).
Increase the sample flow to the wet-section.
Possible cause and suggested action
key, scroll to Manual Hold and select the
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