4
Operation Guide 3173 3246
Bearing Memory
Bearing Memory lets you store a direction reading and display that
reading as you take subsequent digital compass measurements. The
Bearing Memory screen displays the direction angle for the stored
direction, along with an indicator on the display that also indicates the
stored direction.
When you take digital compass measurements while the Bearing Memory
screen is on the display, the direction angle of the current digital compass
measurement (as read from the 12 o'clock position of the watch) and the
currently stored Bearing Memory direction information will both be
displayed.
To store a direction angle reading in Bearing Memory
1. Press
C
to start a digital compass measurement operation.
• If a bea
it me
happens, press
E
to clea
and ex
2. During the 20 seconds that digital compass measurement is in
progress, press
E
to store the current direction angle reading in
Bearing Memory.
• The B
as it is s
scre
appe
• Whi
C
to sta
direc
pos
disp
• Dur
direc
stored in memory is indicated
• Pressing
E
whil
in Be
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 fi
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 fi nd your current location
1. With the watch on your wrist, position it so the face is horizontal.
2. While in the Timekeeping Mode or in any of the sensor modes, press
C
to take a compass reading.
• The re
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 wa
map’s ma
bee
the m
“Ca
• Thi
4. Determine your location as you check the geographic contours around
you.
To fi nd 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.
• Se
about how to
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. While in the Timekeeping Mode or in any of the sensor modes, press
C
to take a compass reading.
• The re
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.
• Thi
so th
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.
• Se
about how to
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 northerly direction indicated on the map
aligned with north as indicated by the watch.
• If you fi
ever
pos
abo
the map.
12 o’clock
position
Bearing memory
direction angle
North
pointer
Direction angle of
current reading
Bearing Memory
Screen
Bearing
memory
pointer
12 o’clock
position
Bearing memory
direction angle
North
pointer
Direction angle of
current reading
Bearing Memory
Screen
Bearing
memory
pointer
N
N
Current
location
North indicated
on the map
North indicated by
north pointer
N
N
Current
location
North indicated
on the map
North indicated by
north pointer
N
N
Objective
Current
location
12 o’clock
position
N
N
Objective
Current
location
12 o’clock
position
N
N
Objective
Current
location
12 o’clock
position
N
N
Objective
Current
location
12 o’clock
position
3. While in the Timekeeping Mode or in any of the sensor modes, press
C
to take a compass reading.
4. While direction angle readings are in progress, press
E
to record the
currently displayed direction in Bearing Memory.
• The d
will re
• Se
5. Now you can advance while monitoring the Bearing Memory pointer to
ensure that it remains in the 12 o’clock position.
• T
Bearing Memor
C
.
• Pressing
E
whil
Bea
Me
reading in
Note
• Wh
con
line. I
the objectiv
Digital Compass Precautions
This watch features a built-in magnetic bearing sensor that detects terrestrial magnetism. This means that
north indicated by this watch is magnetic north, which is somewhat different from true polar north. The
magnetic north pole is located in northern Canada, while the magnetic south pole is in southern Australia.
Note that the difference between magnetic north and true north as measured with all magnetic compasses
tends to be greater as one gets closer to either of the magnetic poles. You should also remember that
some maps indicate true north (instead of magnetic north), and so you should make allowances when
using such maps with this watch.
Location
• Taking a direction reading when you are near a source of strong magnetism can cause large errors in
readings. Because of this, you should avoid taking direction readings while in the vicinity of the
following types of objects: permanent magnets (magnetic necklaces, etc.), concentrations of metal
(metal doors, lockers, etc.), high tension wires, aerial wires, household appliances (TVs, personal
computers, washing machines, freezers, etc.).
• Accurate direction readings are impossible while in a train, boat, air plane, etc.
• Accurate readings are also impossible indoors, especially inside ferroconcrete structures. This is
because the metal framework of such structures picks up magnetism from appliances, etc.
Storage
• The precision of the bearing sensor may deteriorate if the watch becomes magnetized. Because of
this, you should store the watch away from magnets or any other sources of strong magnetism,
including: permanent magnets (magnetic necklaces, etc.) and household appliances (TVs, personal
computers, washing machines, freezers, etc.).
• Whenever you suspect that the watch may have become magnetized, perform the procedure under “To
perform bidirectional calibration”.
Barometer/Thermometer
This watch uses a pressure sensor to measure air pressure (barometric pressure) and a temperature
sensor to measure temperature.
To enter and exit the Barometer/Thermometer Mode
1. While in the Timekeeping Mode or in any of the sensor modes, press
B
to enter the Barometer/Thermometer Mode.
• BARO wil
pres
mea
seconds.
• Af
B
, the watc
for th
2. Press
D
to return to the Timekeeping Mode.
• The w
do no
Barometer
To take barometric pressure and temperature readings
While in the Timekeeping Mode or in any of the sensor modes, press
B
.
• This starts barometric pressure and temperature measurements automatically.
• You also can perform a barometric pressure and temperature measurement at any time by pressing
B
in the Barometer/Thermometer Mode.
• It can take up to four or fi
Barometer/Thermometer Mode.
Barometric Pressure
• Barometric pressure is displayed in units of 1 hPa (or 0.05 inHg).
•
The displayed barometric pressure value changes to
- - -
if a measured
barometric pressure falls outside the range of 260 hPa to 1,100 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
• Temperature is displayed in units of 0.1°C (or 0.2°F).
• The displayed temperature value changes to
- - -
°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.
Display Units
You can select either hectopascals (hPa) or inchesHg (inHg) as the display unit for the measured
barometric pressure, and Celsius (°C) or Fahrenheit (°F) as the display unit for the measured temperature
value. See “To specify temperature, barometric pressure, and altitude units”.
Barometric Pressure Graph
Barometric pressure indicates changes in the atmosphere. By monitoring
these changes you can predict the weather with reasonable accuracy.
This watch takes barometric pressure measurements automatically every
two hours (at the 30th minute of every even numbered hour).
Measurement results are used to produce barometric pressure graph and
barometric pressure differential pointer readings.
Reading the Barometric Pressure Graph
The barometric pressure graph shows readings of previous measurements for up to 24 hours.
• The horizontal axis of the graph represents time, with each dot
standing for two hours. The rightmost dot represents the most recent
reading.
• The vertical axis of the graph represents barometric pressure, with
each dot standing for the relative difference between its reading and
that of the dots next to it. Each dot represents 1 hPa.
12 o’clock
position
Bearing
memory
pointer
North
pointer
Direction angle of
current reading
Bearing memory
direction angle
value
12 o’clock
position
Bearing
memory
pointer
North
pointer
Direction angle of
current reading
Bearing memory
direction angle
value
Temperature
Barometric
pressure graph
Barometric
pressure
Pressure differential
pointer
Temperature
Barometric
pressure graph
Barometric
pressure
Pressure differential
pointer
Temperature
Barometric
pressure
Temperature
Barometric
pressure
Barometric
pressure graph
Barometric
pressure graph
Barometric
pressure
Time
Barometric
pressure
Time
