Thermo Scientific Orion Star, User Manual

Page: 63 / 368

EN-57 Thermo Scientific Orion Star
™
and Star Plus Meter User Guide
Error Code Description Troubleshooting
202 Autosampler
is Jammed Turn the autosampler off and wait 45 seconds before turning it back on.
The autosampler should return to the home position.
203 Unstable Reading
from Autosampler The measurements taken using the autosampler are unstable. Check the
electrodes for proper function. Make sure that the electrode cables are
properly connected.
306 ISE Automatic
Blank Error Disable the automatic blank feature in the setup menu and re-calibrate
the meter without using a zero concentration standard.
307 ISE Calibration
Standard Error 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.
309 Bad ISE Slope Clean the electrode according to the electrode user guide. Re-calibrate
the electrode with freshly prepared standards.
707 Conductivity
Calibration
Standard Error 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.
709 Conductivity Cell
Constant Error The cell constant is not in the range of 0.001 to 199.0 cm
-1
. Clean the
conductivity probe according to the probe user guide. Re-calibrate the
probe with new standards.
808 Bad Zero Point
DO Slope 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.
809 Bad DO Slope 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.
880 RDO
®
Optical
Probe Not Attached
Verify that the RDO probe is properly connected to the meter. Connect
another, known working RDO probe to the meter.
881 RDO Optical
Probe Expired The optical cap attached to the RDO probe has expired. Install a new
optical cap according to the RDO probe user guide.
882 RDO Optical
Probe Failure Verify that the optical cap on the RDO probe was properly installed,
not expired and not tampered with. Connect another, known working
RDO probe to the meter.
Troubleshooting