Module No. 3513
Setting a Reference Altitude and Taking Altitude Differential Readings
You can use the procedure below to display the differential between a reference altitude and another altitude. This makes it easy to display the altitude differential between two points while climbing or trekking.
Select the Altitude Differential Screen.
Use the contour lines on your map to determine the altitude differential between your current location and your destination.
Take an altitude reading of your current location.
Use (E) to set your current location as the reference altitude.
While comparing the difference between the altitude you found on the map and the altitude differential displayed by the watch, advance towards your destination.
This makes the altitude differential ±0 m (±0 feet).
When the altitude differential you found on the map is the same as that displayed by the watch, it means you are close to your destination.
[- - - -] appears when the altitude differential is outside the measurement range (±3,000 m).