Thermo Scientific Orion Star Mode D'emploi page 61

Error Code Description
202 Autosampler is
Jammed
203 Unstable Reading
from Autosampler
306 ISE Automatic
Blank Error
307 ISE Calibration
Standard Error
309 Bad ISE Slope
707 Conductivity
Calibration
Standard Error
709 Conductivity Cell
Constant Error
808 Bad Zero Point
DO Slope
809 Bad DO Slope
880 RDO
Sensor Not Attached
881 RDO Optical DO
Sensor Expired
882 RDO Optical DO
Sensor Failure
Thermo Scientific Orion Star
Troubleshooting
Turn the autosampler off and wait 45 seconds before turning it back on.
The autosampler should return to the home position.
The measurements taken using the autosampler are unstable. Check the
electrodes for proper function. Make sure that the electrode cables are
properly connected.
Disable the automatic blank feature in the setup menu and re-calibrate
the meter without using a zero concentration standard.
The millivolts measured during calibration are the same for two
standards. Review the calibration procedure and verify that the electrode
was placed in the standards at the appropriate times. Clean the electrode
according to the electrode user guide. Re-calibrate the electrode with
fresh standards.
Clean the electrode according to the electrode user guide. Re-calibrate
the electrode with freshly prepared standards.
The conductivity value measured during calibration is the same for
two standards. Review the calibration procedure and verify that the
conductivity probe was placed in the standards at the appropriate times.
Clean the conductivity probe according to the probe user guide. Re-
calibrate the probe with new standards.
The cell constant is not in the range of 0.001 to 199.0 cm
conductivity probe according to the probe user guide. Re-calibrate the
probe with new standards.
An air calibration should be performed before the zero point calibration.
Verify that a solution with zero oxygen is being used for the zero point
calibration. A solution with 15 grams of Na2SO3 dissolved in 250 mL of
distilled water is recommended.
For polarographic DO probes, connect the probe to the meter, power on
the meter and let the probe to polarize for at least 30 minutes. For an
air calibration, check that the sponge in the calibration sleeve is damp
and there is no water on the probe membrane . For a water calibration,
bubble air into the sample and stir to keep bubbles off the membrane.
Clean the DO probe according to the probe user guide. Re-calibrate the
DO probe.
Optical DO Verify that the RDO sensor is properly connected to the meter. Connect
®
another, known working RDO sensor to the meter.
The RDO cap attached to the RDO sensor has expired. Install a new RDO
cap according to the RDO sensor user guide.
Verify that the RDO cap on the RDO sensor was properly installed, not
expired and not tampered with. Connect another, known working RDO
sensor to the meter.
and Star Plus Series Meter User Guide
™
Troubleshooting
. Clean the
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EN-55