Thermo Scientific Orion Star LogR™ Meter User Guide
46
Troubleshooting
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
LogR Temperature
Calibration Points are
Too Close
Calibrate using two temperature points that are at least 5 °C apart.
Another method is to check the resistance value. The resistance value
between each calibration point should have a difference of at least 10%.
To check, set the meter to the LogR temperature input mode. Adjust the
first line with the arrows to display the temperature value and adjust
the second line to read the resistance value of the electrode at the first
temperature and then read the resistance value of the electrode at the
second temperature.
711
pH Calibration
with Invalid LogR
Temperature Reading
Perform a LogR temperature calibration. (Refer to the slide-out card on
the meter or chapter 7 of the user guide.) If this does not correct the error
code, refer to the probe troubleshooting section in the electrode manual
or appendix C of this user guide.
