24 OI/ATS430–EN Rev. H
| Aztec ATS430 | Turbidity sensor
7.2 Diagnostic messages
The table below shows sensor-specific icon types, diagnostic
messages and possible causes / suggested remedial action.
IMPORTANT (NOTE)
— The diagnostic icons in the following tables
conform to NAMUR 107.
— For transmitter-specific diagnostics messages,
refer to AWT440-EN.
Diagnostic Icon NAMUR Status
Error / Failure
Out of specification
Maintenance required
Check function
Icon
Message
Possible cause / suggested action
PV failure
The LED is not illuminating the
sample. Cycle power to sensor.
ADC Failure
An error has been reported by the
on board ADC. Cycle power to
sensor.
NV Failure
Failure of non-volatile memory on
sensor board. Cycle power to
sensor. If power cycling fails, reset
the sensor configuration to default
and reconfigure as needed.
Cal. Failed
The last calibration failed. Repeat
calibration procedure.
Out of Range
The measured turbidity is outside
the specified range.
Wiper Expired
The wiper blade is overdue for
replacement. Replace the wiper
blade and issue wiper blade
replaced command.
Temperature Out
of Range
The internal sensor temperature is
outside operating limits. Verify that
the sample temperature is within
the operating range of the sensor
(0 to 60 °C [32 to 140 °F])
Excess Light
Excess ambient light is present
stopping sensor from operating.
Shade the sensor, or move to an
area where the sunlight is excluded.
Wiper Failed
The wiper has failed to wipe. Check
wiper for blockage.
Replace Wiper
The wiper blade is due for
replacement. Replace wiper blade
and issue wiper blade replaced
command.
LED Expired
The LED is going to fail shortly.
Cal In Progress
A calibration is in progress.
In Recovery
The sensor is in recovery mode
after performing a calibration.
Clean Progress
The wiper is currently cleaning.
Clean Inhibited
Wiping is inhibited.
