Calibrating Altitude Readings (Offset); Checking The Altitude Differential From A Reference Point - Casio G-Shock GG-B100 Operation Manual

Interpreting Altitude Graph Contents
70m*
Current reading
6 readings ago
* 1 square ( v ) is 10 m.
Calibrating Altitude
Readings (Offset)
To minimize the difference between locally
indicated and measured values, you should
update the reference altitude value (offset)
before setting off and during treks or any other
activities where you take altitude readings.
Also, you can ensure accurate measurements
by checking a map local altitude indications or
some other source for your current location's
altitude, and regularly calibrating watch
readings with the latest information while
mountain climbing.
Note
You can find out the altitude at your
●
current location from signs, maps, on
the Internet, etc.
Differences between actual altitude
●
and watch readings can be caused by
the factors below.
Changes in barometric pressure
ー
Changes in temperature caused by
ー
variations in barometric pressure
and by elevation
Though altitude readings can be taken
●
without calibration, doing so may
produce readings that are very
different from indications by altitude
markers, etc.
Operation Guide 5594
1.
Enter the Altimeter Mode.
Navigating Between Modes
l
2.
Hold down (D) for at least two seconds.
Release the button when [SET] starts to
flash and then disappears from the
display.
This displays the current altitude and
enters the Altitude Offset Mode.
3.
Use (A) and (C) to change the altitude
value to an elevation value obtained from
another source.
Setting range: -3,000 to 10,000 meters
Setting unit: 1 meter
To return the altitude setting to its initial
●
factory default, press (A) and (C) at the
same time.
4.
Press (D) to exit the setting screen.
Checking the Altitude
Differential from a Reference
Point
After you set a reference altitude, the second
hand of the watch will indicate the difference
between your current altitude and the
reference altitude. This makes it easy to
measure the altitude difference between two
points while climbing or trekking.
Changing the Information Indicated by
●
the Second Hand
1.
Enter the Altimeter Mode.
Navigating Between Modes
l
2.
Hold down (D) for at least two seconds.
Release the button when [SET] starts to
flash and then disappears from the
display.
This displays the altitude for your current
location.
3.
Press (E) three times.
This causes the display to show [HAND]
n [DIFF] or [SEC].
4.
Use (A) to select [DIFF].
Each press of (A) cycles through the
settings shown below.
[DIFF]: Second hand indicates altitude
differential.
[SEC]: Second hand indicates the current
time seconds.
5.
Press (D) to exit the setting screen.
Setting the Altitude Differential
●
Measurement Range
1.
Enter the Altimeter Mode.
Navigating Between Modes
l
2.
Hold down (D) for at least two seconds.
Release the button when [SET] starts to
flash and then disappears from the
display.
This displays the altitude for your current
location.
3.
Press (E) twice.
This displays the altitude differential
measurement range.
4.
Use (A) to select [100m] or [1000m].
[100m]: ±100 meters (±328 feet) in 5-
meter (16-foot) units
[1000m]: ±1000 meters (±3280 feet) in
50-meter (164-foot) units
5.
Press (D) to exit the setting screen.
Measuring Altitude
●
1.
Use the contour lines on your map to
determine the altitude differential between
your current location and your destination.
2.
Change the information indicated by the
second hand to [DIFF].
Changing the Information Indicated by
l
the Second Hand
3.
Take an altitude reading of your current
location.
Checking the Current Altitude
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20