The biomedical engineer reports the multi gas unit is not producing accurate readings and is giving a "check water trap" error.The device was calibrated with calibration gas and the water trap was replaced with a new one, however, when the unit was retested with the calibration gas, incorrect numeric's were still being displayed.A loaner device was sent to the customer.The device was returned to nihon kohden, evaluated, and the reported issue was confirmed.The "check water trap" did not reappear when a sample line was attached to it.The water trap receptacle was changed to as a precautionary measure.The device was tested with sample gas and all gases fell within service specifications.Nihon kohden will submit a supplemental report in accordance with 21 cfr part 803.56 if additional information becomes available.
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The biomedical engineer reports the multi gas unit is not producing accurate readings and is giving a "check water trap" error.The unit was calibrated with calibration gas and the water trap was replaced with a new one, however, when the unit was retested with the calibration gas, incorrect numeric's were still being displayed.A loaner device was sent to the customer.
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