Operation Guide 3135 3206
Using the Digital Compass While Mountain Climbing or Hiking
This section describes three
•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
12 o’clock position
North pointer
Direction angle of current reading
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
To set a map and find your current location
4. Rotate the bezel so the “N” (North) indicator on the bezel is aligned with |
North indicated on the map
N | Current |
location | |
| N |
North indicated by north pointer
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.
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
Barometric | Pressure | Pressing B in the Timekeeping Mode or in any | |
differential | of other sensor modes enters the Barometer/ | ||
pressure graph | |||
| pointer | Thermometer Mode and starts barometric |
To find the bearing to an objective
pressure and temperature measurements |
N
N
Objective
Current location
12o’clock
position
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.
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).
Barometric
Temperature pressure
• 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 |
| 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 | |
•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
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”. |
N
Objective
Current location
N | 12 o’clock | |
position | ||
|
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.
• 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
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.
•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.
A rising graph generally means improving weather.
A falling graph generally means deteriorating weather.
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