ABB Aztec 600 User Manual page 62

Aztec 600 aluminium, ammonia, color, iron, manganese, phosphate
Single- and multi-stream colorimetric analyzers
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Internal Electronics Temperature Too High/Low
The internal temperature of the electronics enclosure is either too high or
too low.
1. Check that the ambient temperature limits have not been
exceeded.
2. Contact the local ABB representative
LED Failure
This alarm is initiated if the LED failed to adjust the detector voltage at the
beginning of a calibration routine or, if during the piston reset routine, no
light was sensed in the measurement cell even though the LED current is
OK.
 Check that the LED and detector are connected correctly and
working.
No Light at Detector
This alarm is initiated during the piston reset routine if, after moving up
and down twice, the measurement cell is continuously dark and no LED
or motor fault is detected.
1. Check that the LED and detector are connected correctly and
working.
2. Check the measurement cell and piston.
No Valid Calibration
There is no valid calibration stored within the analyzer memory.
 Calibrate the analyzer.
Non-Volatile Memory Error
This message appears if there is a problem with either the display
electronics or the main board memory.
 Power the analyzer down, wait for 10 seconds and power-up
again.
If the error still exists contact the local ABB representative
Override Mode
The analyzer is in Override Mode.
Normal running has been overridden by the operator.
The Override Mode is useful to check analyzer operation manually.
The analyzer remains in Override Mode until it is stopped.
Table 12.1 Diagnostic Information, Relay Operations and Inhibits (Sheet 4 of 5)
IM/AZT6CR–EN Rev. J
Diagnostic message
12 Diagnostic Information and Icons
Stop Attention Calibration
Relay Relay Relay
OFF OFF OFF
OFF OFF OFF
OFF OFF OFF
ON OFF OFF
OFF OFF OFF
ON OFF OFF
Failure
Relay
ON
ON
ON
OFF
ON
OFF
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