Thermo Scientific Orion DUAL STAR User Manual page 94

Customer Services
Error Code Description
E0 pH Auto Buffer Recognition Error – The millivolts measured for a pH
buffer during calibration are outside of the required range for automatic buffer
recognition. Review the pH calibration procedure and check that the correct
buffer set was selected in the setup menu. Clean the electrode according to the
electrode user guide. Re-calibrate the electrode with fresh buffers.
E0 pH Calibration Standard Error – The millivolts measured during calibration
are the same for two buffers or the millivolts for the two buffers are too close
together. There must be at least a 5 mV difference between the two buffers.
Review the pH calibration procedure and verify that the electrode was placed in
the proper buffers at the appropriate times. Clean the electrode according to the
electrode user guide. Re-calibrate the electrode with fresh buffers.
E0 Bad pH Slope or Calibration Offset – Clean the electrode according to the
electrode user guide. Re-calibrate the electrode with fresh buffers.
E0 SE Automatic Blank Error – Review the ISE calibration procedure and
verify that the electrode was placed in the proper standards at the appropriate
times. Clean the electrode according to the electrode user guide. Re-calibrate
the electrode with fresh standards. If the error persists, disable the autoblank
feature in the setup menu and re-calibrate the meter without a zero standard.
See the Automatic Blank Correction Feature section for more information.
E0 SE Calibration Standard Error – The millivolts measured during calibration
are the same for two standards or the millivolts for the two standards are too
close together. There must be at least a 20% difference between the entered
standard values. Review the ISE calibration procedure and verify that the
electrode was placed in the proper standards at the appropriate times. Clean the
electrode according to the electrode user guide. Re-calibrate the electrode with
fresh standards.
E0 Bad SE Slope – Verify that the correct electrode ID was selected in the
setup menu. Clean the electrode per the electrode user guide. Re-calibrate the
electrode with new standards.
E ORP Calibration Standard Error – The millivolts measured for the ORP
standard during calibration are outside of the required range for an ORP
calibration. Review the ORP calibration procedure and verify that the electrode
was placed in the standard at the appropriate time and the Thermo Scientific
ORP standard was used. Clean the electrode according to the electrode user
guide. Re-calibrate the electrode with fresh ORP standard.

Thermo Scientific Orion DUAL STAR pH/ISE Meter User Guide
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