ABB Aztec AWT440 - Page 16

16 CI/AWT440–EN Rev. A
NV Error SW Key 1 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 transmitter.
If problem persists, check all configuration parameters and correct any errors.
If problem still persists, contact local service organization.
Temp Failu re
(S1, S2, S3, S4)
Temperature sensor failure for sensor 1 (2, 3, 4).
The temperature compensator or associated connections are either open-circuit or short-circuit.
Check wiring at temperature compensator connections to the PCB.
PV Failure
(S1, S2, S3, S4)
Process variable / sensor failure for sensor 1 (2, 3, 4).
Temporary or permanent failure of operation of sensor.
Cycle power to the transmitter.
If problem persists, replace sensor cap or complete probe assembly.
If problem still persists, contact local service organization.
S1 (to 4): Removed The transmitter has detected that a sensor has been disconnected.
Measurement stops until the sensor is reconnected.
Intentional sensor disconnection can be acknowledged by selecting Ack. Sensor Removed in the
Operator page menu.
Calibrating
(S1, S2, S3, S4)
Displayed during calibration of sensor 1 (2, 3, 4).
On a multiple sensor setup, this inhibits the calibration of other sensors.
Cleaning
(S1, S2, S3, S4)
Indicates that a manual, or automatic, sensor clean cycle is in progress.
In Hold Mode
(S1, S2, S3, S4)
Sensor (1, 2, 3, 4) in manual hold mode via front panel.
Analog outputs and alarms are held.
To exit manual hold press the key, scroll to Manual Hold and select the appropriate sensor(s).
Recovery
(S1, S2, S3, S4)
The time delay between the completion of a sensor clean cycle and the display of a new reading on
the Operator page.
Simulation On
The analyzer is operating in Simulation mode.
Cal. Failed
(S1, S2, S3, S4)
Last sensor calibration failed.
Calibration is sensor-specific – refer to the sensor Operating instruction.
Media Card Full
Memory card is full, no more data can be saved to the card.
Replace memory card.
Missed Cal.
(S1, S2, S3, S4)
Missed last schedule calibration.
Note. Applicable only to sensor types with automatic calibration facility.
PV Range
(S1, S2, S3, S4)
Process value (PV) measured is out of the specified range of the sensor.
Temp Range
(S1, S2, S3, S4)
Sample solution temperature is above or below the temperature range of the sensor.
Media Near Full
Memory card is more than 90% full.
Replace memory card.
Icon Diagnostic message Possible cause and suggested action
Table 4 Diagnostic messages (2 of 2)