Beckman Coulter UniCel DxC 600 Instructions For Use Manual page 434

Troubleshooting Calibration and Result Errors
Error Code – Definitions
Calculation Complete — Special Calculation was calculated with no result errors.
Calculation Incomplete — Not all tests required for the special calculation have valid results. Check results
for the tests in question and rerun if necessary.
Calibration Failed — Calibration was scheduled but failed one or more acceptance limits.
Calibration Overridden — Chemistry result was calculated with an overridden calibration value. The
calibration should be verified as valid before reporting the result.
Calibration Time Extended — Chemistry result was calculated with a calibration value from an expired
calibration which had been extended. The calibration should be verified as valid before reporting the
result.
Calibration Timed Out — Calibration expired before system could run this chemistry. Results are
incomplete. The reagent must be calibrated and the sample reloaded.
Channel Bypassed — Chemistry has been bypassed by special request of the operator.
Chemistry Needs Calibration — Chemistry requires calibration before proceeding with the requested
tests.
Chemistry Not Run — Chemistry not run for non-specified reason. Reload sample and attempt to run
again.
Division Error — Special Calculation had a zero (0) result in the denominator of the calculation. Check
results for the test in question and rerun test if necessary.
Erratic ADCs — The erratic ADC flag is an indication of MC cup noise. Noise is determined differently within
each cup, dependent on each type of reaction.
TPm and PHOSm noise is evaluated by determining the standard estimate of the error divided by rate for
the rate ADC readings.
ALBm noise is determined by evaluating the maximum deviation between the four ADC readings for both
reference and sample plus reference readings.
GLUCm and BUNm/UREAm noise is evaluated using multiple rate readings used to determine the final
result by screening these values for indication of noise.
Exceeds Critical Range Low/High — Result exceeds operator defined critical ranges in reference range
setup. Please refer to
for additional information.
Exceeds Reference Range Low/High — Result exceeds operator defined reference ranges in reference
range setup. Please refer to
for additional information.
Excessive Reference Drift – Sample to Calibration — The reference value for an ISE sample
measurement drifted from the reference value of the calibration and exceeded the limit. The units are
measured in ADCs and are a measurement of ISE sample electrode drift.
This flag may be triggered for CL, K, NA and CALC by excessive ambient room temperature shifts. CL may
also experience this flag when running many urine samples or needs maintenance. Correct CL electrode
by running serum samples to recondition the electrode.
K and CALC may see this error when electrode is newly installed. Refer to
manual for additional information.
A faulty calcium electrode MAY also cause sample reference drift errors on sodium and potassium results.
12-18
Reference/Critical Ranges Setup
Reportable Ranges Setup
in CHAPTER 3, System Setup Options in this manual
in CHAPTER 3, System Setup Options in this manual
CHAPTER 9, Maintenance in this
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