The customer reported a burning smell coming from the back of the unicel dxh 800 coulter cellular analysis system while running latron quality control (qc).The customer stated a "pneumatic supply module exceeded the operating limits" system error was also obtained.The customer powered off the instrument.There were no sparks, arcs or flames.The lab was not evacuated and the fire department was not called.No erroneous results were generated in association with the event.There was no death, injury, or affect to user or to patient treatment attributed to this event.
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A beckman coulter (bec) field service engineer (fse) was dispatched to assess the instrument.The fse found a quick disconnect 8 on the flow cell harness under the sheath tank was not tight and was leaking slightly (line provides diluent for sample line cleaning and interconnects to the sample line) onto the pneumatic services, temp control card and shorted solenoids.The fse tightened the quick disconnect and also replaced pneumatic module resource card (mrc), pneumatic sensor card, volume conductivity scatter (vcsn) temperature controller card, module id board and associated cables to resolve the issue with the solenoids damaged by the leak.The fse verified the instrument with no further issues.The instrument was returned to normal operation.(b)(4).
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