Invacare Platinum 5 Service Manual page 86

SECTION 22—TIMING
9. Turn the unit off and then back on. The timing value is stored in memory for future
use.
10. If the unit is turned off before an autotune cycle is completed, the P.E. valve timing will
not be stored or updated. If the board is new, autotuning MUST be successfully
completed before the unit can be placed into service.
11. After a successful autotune, run the unit for 30 minutes and verify that the oxygen
concentration output of the unit is within specification.
12. If the oxygen output concentration is not within specification, rerun the autotune
again.
13. Reinstall the cover screws.
P.C. Board
Platinum™Series
FIGURE 22.1 Autotuning
86
Pressure Sensor
Autotune
Push Button
Switch
Part No 1110538