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Barometer/thermometer – Casio 3206 User Manual

Page 4

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Operation Guide 3135 3206

4

Using the Digital Compass While Mountain Climbing or
Hiking

This section describes three real-life situations where you could use the
watch’s built-in digital compass.

• To set a map and find 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.

• To find the bearing to an objective

• To determine the direction angle to an objective on a map and head 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. Take a compass reading and then 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.

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.

12 o’clock

position

N

N

Current

location

Objective

• This will position the map relative to 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

Note

• The following procedure is possible only with a

watch that has a rotary bezel.

1. Take a compass reading and then 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.

12 o’clock
position

N

N

Current
location

Objective

• 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.

3. In the Timekeeping, Digital Compass,

Barometer/Thermometer, or Altimeter Mode,
press C to take a compass reading.

• The compass reading information (angle

value, direction indicator, and four pointers
based on the 12 o’clock position of the
watch) will appear on the display after about
two seconds.

• The compass reading information will

remain on the display for only about 20
seconds after you press C. After that it will
disappear. If you want to re-display the
compass reading information, press C
again to take another reading.

12 o’clock
position

Direction angle of
current reading

North
pointer

4. Rotate the bezel so the “N” (North) indicator on the bezel is aligned with

the north indicator produced by the reading in step 3.

5. To advance to your objective proceed in the direction that 12 o’clock is

pointing.

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

.

x

°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.

• 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 select

the temperature, barometric pressure, and altitude units”.

• See “Barometer and Thermometer Precautions” for important precautions.

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 top of each even-numbered hour), regardless of its current
mode. Measurement results are used to produce barometric pressure graph
and barometric pressure differential pointer readings.
The barometric pressure graph shows readings of previous measurements for
up to 20 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 1hPa.
The following shows how to interpret the data that appears on the barometric
pressure graph.

A rising graph generally means improving weather.

A falling graph generally means deteriorating weather.