Martin MAC Quantum Profile User Manual page 16

Calibration offsets that are stored in memory are not affected by powering the fixture off and on or by
updating the fixture software.
You can reset all calibration offsets to their default values by sending a DMX value on the Fixture
control/settings channel. You must hold the value for 5 seconds. The fixture will return to factory default
calibration values. If you have overwritten the factory default values by applying a CALIBRATION → SAVE
DEFAULTS command in the SERVICE menu, the fixture will return to the last default calibration values that
were saved).
16 MAC Quantum Profile User Guide