36 Certifier
®
FA Plus Test System
2.4.2.3 Oxygen Sensor Calibration
Follow these steps daily and following an altitude change or sensor replacement to
calibrate the oxygen sensor:
1. Power up the Certifier
®
FA Test System with the High Flow Module and oxygen
sensor attached, allow one minute to warm up.
2. Press the key and select the “Oxygen Calibration” box on the display. Follow
the directions on the screen. Note that either an “air only” or an “air and 100%
oxygen” calibration can be done. The two point air/100% oxygen calibrations
provide the best accuracy.
Note: The numeric value displayed during the stabilization process does not
necessarily represent the actual oxygen concentration. This numeric
stabilization value is there for you to determine if it is changing or not. Once
the reading stops changing then it is time to advance to the next step in the
oxygen sensor calibration process.
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