
Beckman Coulter · Model UniCel DxC 600i
System throughput of up to 990 chemistry and 100 immunoassay tests per hour* Combined onboard capacity of 89 different tests from a menu of more than 150 assay ClozCap™ closed-tube sampling and aliquoting technology On-the-fly loading of chemistry and immunoassay reagents and consumables while system is running Hands-free integrated aliquot preparation Streamlined parallel sample processing.
Compiled for this model from its own documentation and established engineering knowledge for this equipment class - not from a verified service record. Confirm against the manufacturer's service manual.
Symptoms: Controls out of range, calibration fails, flagged results on one or more assays.
Root cause: Reagent pack issue, a probe / dispense fault, incubation-temperature drift, or a detector / optics fault.
Symptoms: Short aspiration, no dispense, clot / level-sense errors, carryover.
Root cause: Clogged or bent probe, a syringe / pump fault, or a level-sense fault.
Symptoms: High background / noise, poor precision, elevated blanks.
Root cause: Blocked wash-station nozzles or a wash-pump / vacuum fault.
Symptoms: Assay drift or bias, incubation-temperature alarm.
Root cause: Incubator heater or temperature-sensor fault.
Symptoms: Low signal, high CV, detector-error message.
Root cause: PMT / detector ageing or an optics fault.
Serviceable items for this model, compiled from its documentation and engineering knowledge for this equipment class. Service class and relative cost are estimates, not manufacturer figures; no part numbers are given. Confirm intervals and pricing against the manufacturer.
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Sample / reagent probe | Periodic replacement | $$ | Moderate |
| Syringe / dispense pump | Periodic replacement | $$ | Moderate |
| Wash-station nozzles / pump tubing | Frequent wear item | $ | Moderate |
| Incubator heater / temperature sensor | Major service part | $$ | Moderate |
| Detector / PMT module | Major service part | $$$ | Difficult |
Relative cost: $ lowest · $$$$ highest service-part cost for this equipment class. Not a price.
Preventive-maintenance tasks typical of this equipment class. Perform to the manufacturer's procedure and your facility's policy - this is general reference, not a schedule for this specific unit.
A starting sequence for this model, compiled from its documentation and engineering knowledge for this equipment class. Follow the manufacturer's service documentation for the actual procedure.
Where this class of equipment is typically deployed - general reference, not this unit's own placement record.
Synced live from the FDA openFDA API.
a software defect in which the Parameter Package (PP) import logic overwrites all predefined calculated test rules, including those previously modified by the user, upon import of a new Parameter Package version. As a result, usercustomized calculated test rules revert silently to their default expressions, potentially generating erroneous patient test results without an explicit error notification. The issue affects instruments running software version 1.5 or lower and only occurs when a new Parameter Package is imported to a system that already has an existing Parameter Package onboard; new installations are not affected.
On a clinical analyzer, when ordering a Clinical Chemistry (CC) combination test simultaneously with an Immunoassay (IA) test, if the IA test is processed between the CC tests, CC sample status will remain In Progress with no errors, may cause processing delays.
Beckman Coulter is recalling their DxC 500 AU Clinical Chemistry Analyzer because a software error causes the analyzer to not run a requested calibration order in the following scenario: when a reagent blank or calibration is ordered during sample processing and then any of the components (R1 and/or R2) depletes to zero tests, the analyzer will not be able to complete the calibration request, and the calibration order will remain pending. No further calibration orders can be processed for any assays, and the instrument refuses to accept further sample processing order after the existing calibration curves are expired. Although in-process tests will be completed, this error can cause a delay in reporting subsequent test results. No further calibration orders can be processed for any assays which may cause a delay in reporting test results.
The reason for the recall is incorrect sample barcode identification and processing errors that result in the reporting of erroneous and delayed results.
Beckman Coulter has determined that device software versions V1.3, V1.4, V1.4.1, V1.4.2, V1.4.3. have a defect due of which, when all constituent tests of a calculated result are rerun, either manually ordered by the operator at the analyzer or automatically triggered by predefined rules in System Configuration, the calculated result will not be recalculated using the constituent tests rerun results. The system will report only the calculated result using the initial constituent tests results to the operator and LIS/Remisol. The issue was identified by Beckman Coulter internal engineering testing. The defect may cause a delay in reporting patient results.
Beckman Coulter has identified an issue which prevents the DxC 500 AU instrument from providing the correct onboard stability (Open Expiration) dates for assays that were loaded prior to a software upgrade (e.g. 1.3 to 1.4, 1.4 to 1.4.1, etc.). As a result, assays that have expired may still be used for sample processing, leading to inaccurate or erroneous patient test results. The issue only happens on assays loaded before instruments doing upgrades and does not impact new installation. It does not impact the assays loaded after upgrade.
Due to a software issues, after the instrument processes 250 racks cumulatively, any subsequent racks with samples requiring rerun/reflex will be held in the Sample Handler's Buffer area and and error code "9000" will be reported. This issue may cause a delay of results.
There are two software bug issues with the analyzer. Issue 1: When a dedicated rack is reserved for calibration, after a calibration test has been placed and completed, the same rack may be used to place both a patient order and a calibration order. When a patient sample and a non-barcoded calibrator tube is processed on the rack, the calibration result will be reported as a patient result. Issue 2: calibration with expired calibrator. They both may cause erroneous patient results, but the probability of serious adverse health consequences or death is unlikely.
The firm has identified that the Transferrin reagent does not meet the Instructions for Use (IFU) reagent on-board stability claims, which may cause control failures and/or erroneous patient samples results. The Complaint handling unit has received a total of 2 safety cases (CASE-2023-02027212 and CASE-2023-02045278) and 99 quality cases with the failure mode attributed to Transferrin reagent (OSR6152 / lot 2573) associated with reagent blank shifts for the Reagent 2 (R2), imprecision, calibration failures, erratic Quality Control (QC) recoveries, and/or erroneous high/low (serum, plasma, urine) patient results. The issue was confirmed through internal testing by Beckman Coulter on June 30, 2023. Reagent Blank shifts for R2, imprecision, calibration failures, erratic Quality Control (QC) recoveries, and/or erroneous high/low (serum, plasma, urine) patient results. The issue was confirmed
Lipemic interference for the Magnesium serum application failed to meet the performance claim as defined in the IFU. Use may cause a maximum positive bias up to 30.38% in low magnesium patient samples. The impact is only to the clinical interpretation of magnesium results in the presence of lipemia.
The recalling firm characterized the potential interference effects of biotin (up to 1,200 ng/mL) on all biotin-mediated Access assays. The following six assays: Free T3-REF A13422, Total T3-REF 33830, Free T4-REF 33880, GI Mon-387687, Tg-REF 33860, and TgAbII-REF A32898 displayed significant interference (defined as a result bias greater than +/-10%) at 1,200 ng/mL of biotin.
The shield for the Single-Tube Station on the DxH instrument may interfere with sample aspiration in the open vial position.
Beckman Coulter is initiating a field action because some Ultrasonic Transducer Kits were potentially assembled with incorrect mounting screws.
It has been determined that, in some cases, pulley drive components have broken parts or have become loose, mispositioned, or disconnected from their drive shafts. When these defects occur, the pulley may not turn at all, or may turn at an incorrect speed, resulting in inadequate washing or mixing of the contents of the reaction vessel.
The hose clamps in the DxC (with serial numbers less than 3412, labeled behind the lower right side instrument door) hydropneumatic system are sharp and pose a possible risk of injury. An operator could be cut by the hose clamps, which could in turn result in increased exposure to any waste products (biohazards) that might be present on the assembly.
Beckman Coulter is initiating a recall on their UniCel DxC Clinical Systems (880i, 860i,680i and 660i Systems with serial number <2760 that have software version 4.9.01 installed and have the VME Motorola ICS board) because they may exhibit issues with stat sample rack loading, causing a possible delay in results.
Incorrect Reagent Status-When a new cartridge of Infinity Lithium Reagent is loaded on to the UniCel DxC System, the Reagent Status screen will incorrectly show 'Days Left' as 21. The correct Reagent Status for a new Lithium reagent cartridge is 14 days. Lithium reagent used past 14 days may produce low quality control and/or patient results.
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