ABB Navigator 600 Silica User Manual page 71

Navigator 600 Silica
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Preheater Temp Stabilizing
This message is displayed at startup and remains until the preheater
temperature has stabilized to within 10 ºC (18.0 ºF) of the
programmed control temperature. If the message is still displayed
after 15 minutes:
1. Check that the sample and ambient temperatures are within
the quoted limits.
2. Check the 'Pre-Heater' value displayed on the 'Measurement
Status' page within 'Diagnostic Information' – see
Section 12.3, page 60.
If the temperature is low, check the heater LED on the main board is
lit. If it is not, contact your local ABB representative.
Pre-Heat Temperature High / Low
>10 °C (18 °F) but <20 °C (36 °F) above or below
The measured temperature is more than 10 °C (18 °F) but less
than 20 °C (36 °F) above or below the programmed control
temperature.
1. Check that both the sample and ambient temperature are
within the quoted limits.
2. If the error persists, contact your local ABB representative.
Excessive Zero Offset
The zero offset parameter generated at the last zero calibration is
outside of the alarm limits. A system clean is automatically initiated
and another zero calibration is performed.
If the message is displayed after the second zero calibration:
1. Check the 'Audit Log' to see if a baseline calibration was
carried out after the reagents were replaced. If not, carry out
a baseline calibration.
2. At the 'Calibration and Maintenance' level, select 'Manual
Test Settings', 'Test Valves' and energize the 'Zero Cal.' valve
(set the parameter to 'On'). Check that the 'Zero Cal.' LED on
the main board is lit and that there is an audible click when
the valve energizes.
Scheduled Zero Cal. Missed
The scheduled zero calibration has been missed due to either a
manual operation being performed or an out-of-service condition.

The next calibration due date is updated automatically.

The next calibration is performed at the correct date and time
if the analyzer is in service
Table B.1 Diagnostic Information, Relay Operations and Inhibits (Sheet 4 of 7)
IM/NAV6S/SS–EN Rev. E
Diagnostic message
Appendix B – Diagnostics and Alarms
Out-of- Cal. in
Hold
Service Progress
Relay
Relay Relay
ON OFF
ON OFF
OFF
Cal.
Failed Inhibits
Relay
All calibrations
and cleans
Scheduled
ON zero
calibration
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