Altitude Differential

You also can use the Altimeter Mode to measure the altitude differential from a specific reference altitude. Specifying the point is as simple as pressing a single button to reset the current reference altitude value to zero. Altitude differential measurement is performed each time the watch performs an altitude measurement.

•You must perform altitude differential measurement whenever you select format number 3 or 4 as the Altimeter Mode display format.

•The range of the altitude differential value is –3,000 meters to 3,000 meters.

•“------” is displayed in place of the altitude differential value whenever the measured value is outside the allowable range.

•The watch will assume that the reference altitude setting is zero for the first measurement after you exit the Altimeter Mode setting screen (page E-77).

•See “Using Altitude Differential Measurement While Mountain Climbing or Hiking” (page E-80) for some real-life examples of how to use this feature.

E-79