Qn #(b)(4).The sample was returned for evaluation.A visual exam was performed and there were no major defects observed.Functional testing was performed and the unit was connected to 120vac.The unit passed the initial power connect test and navigated through the power-on self-test (p.O.S.T.) with no issues.During the temperature display accuracy test the unit displayed the correct temperatures and properly alarmed in the high temperature scenario.The unit was prepared for the functional bench test where water, an adult breathing circuit (880-36kit), 3 lpm of air pressure, and a 382-10 concha smart water column was connected to the unit for a real time operational scenario.The unit successfully negotiated all pre-operational self-tests again and was functioning in real time.The neptune operational values were set as follows: temperature was set at 37 c, mode was invasive, full rainout on the moisture scale.The neptune was turned on, values set.The unit successfully negotiated all pre-operational self-tests again and was functioning real time.The unit heated up to the set temperature and functioned without any interruption or functional anomalies for approximately 1 hour.The unit did not have a burning smell.Based on the investigation performed, the reported complaint could not be confirmed.Functional testing did not reveal any operational anomalies.
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