Resetting the Surface Pressure

The device automatically determines the surface pressure using the barometric altimeter. Large pressure changes, such as during a flight, can cause the device to automatically start a dive activity. You can reset the surface pressure if the device automatically starts a dive activity incorrectly.

  1. Hold LIGHT until the device turns off.
  2. Hold LIGHT to turn on the device.
  3. When the Descent™ logo appears, hold MENU until you are prompted to reset the surface pressure.
  4. Select Yes.
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