UniCel DxI 600 Access Immunoassay System is an ensemble of 50 reagents on board which facilitates to carry out routine and specialized test with simple procedures. The device offers user friendly and simple system for the tests with a fast turn around by decreasing the process steps. Irrespective of which ever Beckman Coulter immunoassay system performs the test, reliable test results of the patient is delivered by utilizing the same reagents as other UniCel Access systems. The device offers an onboard capacity of 50 refrigerated reagent packs with an assurance of identical reagent guarantee and delivering consistent patient results. The flexible system can be configured with respect to the requirement. The preparation of reagents is eliminated by utilizing the ready to use reagent and consistent patent results are delivered with simple procedures. The reagent management is simplified with a large on-board reagent capacity. It contains bar codes and standard packs of reagents across unicel access immunoassay systems.