Beckman Coulter UniCel DxC 600 Instructions For Use Manual page 435

Excessive Reference Drift – Sample to Sample — The reference ADC value for a sample drifted above
the acceptable difference between consecutive samples. The units are measured in ADCs and are a
measurement of reference reagent readings by sample electrode. This measures the ability of the sample
electrode to recover between samples.
This flag may be triggered for CL when running urine and serum samples together and is an indication of
CL electrode condition.
A faulty calcium electrode MAY also cause sample reference drift errors on sodium and potassium results.
Greater Than Y - OIR HI — Calculated result is greater than the Upper Instrument Printable Range. Result
is not reported.
Greater Than Y - ORR HI — Calculated result is greater than the Upper Reportable Range. Result is not
reported.
Initial Absorbance High/Low — The reaction absorbance data taken from the first spin cycle after sample
or trigger reagent inject has exceeded specifications. This is a measure of sample integrity and may
indicate a turbid or lipemic sample or in DAT chems, the presence of an interfering substance.
Initial ADC Error High/Low — The ADC value determined from the first read after reagent addition has
exceeded specifications. This is a measure of modular cup reagent or cup integrity.
This flag may be triggered if using old, contaminated or poorly prepared reagents, or when a cup
chemistry fails to empty properly, leaving a dirty reaction cup. This flag may also be triggered when
experiencing temperature differences either external or internal to the system.
Initial Conductance Error High/Low — The initial conductance readings for GLUCm or BUNm are below or
above acceptable limits. This may be caused by poor reagent preparation, poor electrode integrity or cup
heater issues.
Initial Rate High/Low — For CC chemistries, the reaction absorbance data obtained between 2 and 17
seconds after sample or the trigger reagent inject exceeds specifications. This flag is used to trigger auto
and manual ORDAC testing
For the MC chemistries GLUCm, BUNm/UREAm, TPm (not CSF) and ALBm, this flag indicates a failure in
the related stirrer mechanism.
Insufficient Diluent Reagent — The Diluent cartridge currently loaded on the system does not contain
adequate volume of reagent to perform all required on-board dilutions.
Insufficient Reagent Strength — GLUCm and BUNm/UREAm reagent conductivity is below specifications.
For GLUCm, this flag may indicate an issue with the glucose electrode. Replace electrode and continue
running. For BUNm/UREAm, this flag may indicate an electrode cleaning issue, contaminated or old
reagent, or possible valve errors.
Invalid Chemistry — System cannot find correct parameters to run the requested chemistry. Possible UDR
or Database error.
ISE DAC Failure — The electrode response observed during calibration exceeds the pre-defined ADC
range. This flag may indicate an issue with an electrode, analog board problems, or compromised
reference reagent.
Less Than X-OIR LO — Calculated result is less than the Lower Instrument Printable Range. Result is not
reported.
Less Than X-ORR LO — Calculated result is less than the Lower Reportable Range. Result is not reported.
A13914AF
Troubleshooting Calibration and Result Errors
Error Code – Definitions
12
12-19