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Max-500E Advisory

October 25, 2018

Maxtec has issued a voluntary correction for the Max-550E oxygen sensor which is effective October 25, 2018. When the flow diverter is overtightened, some Max-550E sensors were found to potentially become over-pressured and forced to be unseated from the gas analysis port. This could ultimately cause an inaccurate or slow-response FiO2% reading on the monitor or analyzer that uses this sensor.



HOW TO DETERMINE IF YOU HAVE A PRODUCT THAT IS AFFECTED

Max-550e in Max-Blend 2

If you received one of the following products between June 26, 2018 and October 22, 2018, please enter the serial number of your Max-550E sensor in the search field below to verify if your product is impacted by this notice.

The products affected are:

NOTE: Enter the serial number of the Max-550E sensor, not the serial number of the device.

This serial number was affected

WHAT YOU CAN DO WITH YOUR AFFECTED PRODUCT

Max-550e Corrective Action

Unscrew the flow diverter a half-turn, which provides clearance, allowing the gas to properly flow through the diverter. This should correct the potential issue of over-pressure. Note: the over-pressured condition does not damage the sensor itself.

If the step above does not fix the issue or you would prefer a replacement part(s), please contact us via www.maxtec.com/rma or (385) 549-8086.

You can also call our Customer Service department at (800) 748-5355.

This serial number was not affected

Check another serial number