One pump was returned for analysis in used condition.Visual inspection of the pump showed that the pump was in good physical condition.The event history log noted "loss of power occurred while running".Functional tests included use and accuracy testing.Delivery accuracy testing found the pumps average delivery error to be within the published specification of +/-6%.The pump was in specification during the occlusion and functional tests.Further inspection found cracks and fluid ingression on the pump's downstream sensor.The micro processor board and downstream sensor were replaced as a preventative measure.Based on the evidence, the complaint regarding infusion accuracy was unable to be confirmed.
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