Operation Guide 3071 (B)
4
Bearing Memory
Bearing Memory lets you store a direction
reading and display that reading as you take
subsequent readings.
The Bearing Memory screen displays the
direction angle for the stored direction, along with
an indicator in the ring around the display that
also indicates the stored direction. When you take
compass readings while the Bearing Memory
screen is on the display, the direction angle for
your current bearing (as read from the 12 o’clock
position of the watch) is also shown.
To store a compass reading in Bearing
Memory
1. In the Digital Compass Mode, press
C
to
take a reading.
•
After the compass reading is complete, the
watch will continue to take direction angle
readings automatically for about 20 seconds.
12 o’clock
position
Bearing Memory
indicator
Bearing Memory
direction angle
Direction angle of
current reading
Bearing Memory
Screen
2. While direction angle readings are in progress, press
E
.
•
This will cause the direction angle to flash for about one second as it is
stored in Bearing Memory, and then the Bearing Memory screen will appear.
•
While the Bearing Memory screen is on the display, you can press
C
to
start a 20-second direction reading operation that displays the direction
angle for the direction that the 12 o’clock position of the watch is pointed.
The direction angle of the current readings will disappear from the display
after the direction reading operation is complete.
•
During the first 20 seconds after you display the Bearing Memory screen or
during the 20-second direction reading operation while the Bearing Memory
screen is on the display, the direction stored in memory is indicated by an
indicator in the ring around the display.
•
Pressing
E
while the Bearing Memory screen is displayed will clear the
direction angle currently in Bearing Memory and return to the Digital
Compass Mode.
Using the Digital Compass While Mountain Climbing or
Hiking
This section provides three practical applications for using the watch’s built-in
digital compass.
•
Setting a map and finding your current location
Having an idea of your current location is important when mountain
climbing or hiking. To do this, you need to “set the map”, which means to
align the map so the directions indicated on it are aligned with the actual
directions of your location. Basically what you are doing is aligning north on
the map with north as indicated by the watch.
•
Finding the bearing to an objective
•
Determining the direction angle to an objective on a map and heading in
that direction
To set a map and find your current location
1. With the watch on your wrist, position it so the
face is horizontal.
2. In the Timekeeping, Digital Compass,
Barometer/Thermometer, or Altimeter Mode,
press
C
to take a compass reading.
•
The reading will appear on the display after
about two seconds.
3. Rotate the map without moving the watch so
the northerly direction indicated on the map
matches north as indicated by the watch.
•
If the watch is configured to indicate
magnetic north, align the map’s magnetic
north with the watch indication. If the watch
has been configured with a declination to
correct to true north, align the map’s true
north with the watch indication.
•
This will position the map in accordance
with your current location.
4. Determine your location as you check the
geographic contours around you.
North indicated
on the map
North indicated by
north pointer
Current
location
N
N
To find the bearing to an objective
1. Set the map so its northerly indication is
aligned with north as indicated by the watch,
and determine your current location.
•
See “To set a map and find your current
location” for information about how to
perform the above step.
2. Set the map so the direction you want to travel
on the map is pointed straight in front of you.
3. With the watch on your wrist, position it so the
face is horizontal.
4. In the Timekeeping, Digital Compass,
Barometer/Thermometer, or Altimeter Mode,
press
C
to take a compass reading.
•
The reading will appear on the display after
about two seconds.
12 o’clock
position
N
N
Current
location
Objective
5. Still holding the map in front of you, turn your body until north as indicated
by the watch and the northerly direction on the map are aligned.
•
This will position the map in accordance with your current location, so the
bearing to your objective is straight ahead of you.
To determine the direction angle to an objective on a map and head
in that direction
1. Set the map so its northerly indication is
aligned with north as indicated by the watch,
and determine your current location.
•
See “To set a map and find your current
location” for information about how to
perform the above step.
2. As shown in the illustration to the left, change
your position so you (and the 12 o’clock
position of the watch) are pointed in the
direction of objective, while keeping the map
aligned with the readings being produced by
the watch.
•
If you find it difficult to perform the above
step while keeping everything aligned, first
move into the correct position (12 o’clock
position of the watch pointed at the
objective) without worrying about the
orientation of the map. Next, perform step 1
again to set the map.
12 o’clock
position
N
N
Current
location
Objective
3. In the Timekeeping, Digital Compass,
Barometer/Thermometer, or Altimeter Mode,
press
C
to take a compass reading.
•
The reading will appear on the display after
about two seconds.
•
The indicator (indicating the direction stored
in Bearing Memory) and the direction of the
watch’s 12 o’clock position will disappear
from the display about 20 seconds after you
perform a compass reading by pressing
C
.
If this happens, press
C
again to take a
new reading and to display the indicator
(indicating the direction stored in Bearing
Memory).
12 o’clock
position
Bearing Memory
indicator
Bearing Memory
direction angle
Direction angle of
current reading
4. After setting the map, keep the map and watch pointed in the same
direction as you press
E
to record the currently displayed direction in
Bearing Memory.
•
See “Bearing Memory” for more information.
5. Now you can advance while monitoring the indicator (indicating the
direction stored in Bearing Memory) to ensure that it remains in the
12 o’clock position.
Note
•
When mountain climbing or hiking, conditions or geographic contours may
make it impossible for you to advance in a straight line. If this happens,
return to step 1 and save a new direction to the objective.
Barometer/Thermometer
This watch uses a pressure sensor to measure air pressure (barometric
pressure) and a temperature sensor to measure temperature.
•
You can calibrate the pressure sensor and the temperature sensor if you
suspect that readings are incorrect.
To take barometric pressure and temperature readings
Pressing
B
in the Timekeeping Mode or in any
of other sensor modes enters the Barometer/
Thermometer Mode and starts barometric
pressure and temperature measurements
automatically .
•
It can take up to four or five seconds for the
barometric pressure reading to appear after
you enter the Barometer/Thermometer Mode.
•
Barometric pressure is displayed in units of
1hPa (or 0.05 inHg).
Temperature
Barometric
pressure
Barometric
pressure graph
Pressure
differential
pointer
•
The displayed barometric pressure value changes to
xxxx
hPa (or inHg) if
a measured barometric pressure falls outside the range of 260 hPa to
1100 hPa (7.65 inHg to 32.45 inHg). The barometric pressure value will
reappear as soon as the measured barometric pressure is within the
allowable range.
•
Temperature is displayed in units of 0.1
°
C (or 0.2
°
F).
•
The displayed temperature value changes to
xxx
°
C (or
°
F) if a measured
temperature falls outside the range of –10.0
°
C to 60.0
°
C (14.0
°
F to
140.0
°
F). The temperature value will reappear as soon as the measured
temperature is within the allowable range.
•
In some areas, barometric pressure is expressed in millibars (mb) instead
of hectopascals (hPa). It really makes no difference, because 1hPa = 1mb.