Vision Fitness Platform Treadmill T9700 Runner's Owner's Manual page 60

AUTO-CALIBRATION
DO NOT STAND ON THE BELT WHEN PERFORMING THE AUTO-CALIBRATION!
You need to access User Engineering Mode to run the Auto Calibration.
To access this mode, please hold down SPEED DOWN and SELECT for
5 seconds. When in the User mode, "User Mode" appears in the
alphanumeric window. To access the data press the ELEVATION keys until
"Auto-Cal" appears. Press Start to select this function.
To begin auto-cal, press START. The treadmill will run through minimum
and maximum speed and maximum incline. This will take 3-5 minutes. Let
the treadmill perform this complete function before exiting the Engineering
Mode.
Elevation A/D or Elevation in % appears in the left window. PWM value
or Speed appears in the right window. "Cal Passed" will appear in the
center window when the auto-calibration is complete. The treadmill will
come to a complete stop and return to the start-up screen in the
alphanumeric window.
EXIT USER ENGINEERING MODE
P19 represents exit mode. When you press START to select the function,
the console performs a reboot, returning to program setup.
56