Zimmer Biomet GPS III Processing Instructions page 5

Step 4: Spin
Close the lid by rotating the lid latch clockwise.
"Latched" indicator will illuminate. Set speed to
3200 RPM and time to 15 minutes. Press green
button to start spin. Once spin is complete, press
red button to illuminate the "Unlocked" indicator.
Twist latch counterclockwise to open lid.