Operation Guide 3258
Using Bearing Memory
12 o’clock position
North pointer
Direction | Bearing |
memory | |
angle of | pointer |
current | Bearing memory | |
reading | ||
direction angle value | ||
| ||
Bearing Memory | ||
| Screen | |
Bearing Memory lets you temporarily store and display a direction reading so you can use it as a reference as you take subsequent digital compass readings. The Bearing Memory screen displays the direction angle for the stored reading, along with an indicator that indicates the stored reading.
When you take digital compass readings while the Bearing Memory screen is displayed, the direction angle of the current digital compass reading (as read from the 12 o’clock position of the watch) and the stored Bearing Memory direction reading will both be shown.
To store a direction angle reading in Bearing Memory
1.Press C to start a digital compass measurement operation (page
•This will take an initial reading and then take readings every second for 20 seconds.
•If a bearing memory direction angle value is already displayed, it
means that there is a reading already stored in Bearing Memory. If this happens, press E to clear the Bearing Memory reading and exit the bearing memory screen before performing the above step.
•During the first 20 seconds after you display the Bearing Memory screen or during a
•Pressing E while the Bearing Memory screen is displayed will clear the reading currently in Bearing Memory and start a new
Using the Digital Compass While Mountain Climbing or Hiking
This section provides three practical applications for using the watch’s
•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
2.During the 20 seconds that digital compass readings are being taken, press E to store the current reading in Bearing Memory.
•The Bearing Memory direction angle flashes for about one second as it is stored in Bearing Memory. After that, the Bearing Memory screen (which shows the bearing memory direction angle) will appear, and a new
•You can press C at any time while the Bearing Memory screen is displayed, to start a new
To set a map and find your current location
To find the bearing to an objective
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 reading will appear on the display after about two seconds.
N
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” on page |
information about how to perform the above step. |
North indicated on the map
N
N
North indicated by north pointer
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. For details, see “Calibrating the Bearing Sensor” (page
•This will position the map in accordance with your current location.
4.Determine your location as you check the geographic contours around you.
N
Objective
Current location
12o’clock
position
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 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. |
| • 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 (Bearing Memory)
3. While in the Timekeeping Mode or in any of the sensor modes, press |
N
N
Objective
Current location
12o’clock
position
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” on page
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 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
North | Bearing memory |
pointer | pointer |
|
|
|
|
|
|
Direction angle of current reading
Bearing memory direction angle value
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 direction angle value and pointer stored in Bearing Memory |
will remain on the display for about 20 seconds. |
• To |
Bearing Memory pointer, press C. |
• See “Using Bearing Memory” (page |
5. Now you can advance while monitoring the Bearing Memory pointer to |
ensure that it remains in the 12 o’clock position. |
• Pressing E while the Bearing Memory direction angle value and |
Bearing Memory pointer are on the display will clear the Bearing |
Memory data you saved in step 3 and save the current direction |
reading in Bearing Memory. |
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.
Digital Compass Precautions
This watch features a
Taking Barometric Pressure and Temperature Readings
This watch uses a pressure sensor to measure air pressure (barometric pressure) and a temperature sensor to measure temperature.
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.
BarometricBarometric
pressure graph pressure change indicator
Pressure
differential
Barometricpointer pressure
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 will appear on the display, indicating that barometric pressure and temperature measurements are in progress. The measurement results will appear on the display after about five seconds.
•After you press B, the watch will take readings every five seconds for the first three minutes, and then every two minutes after that.
2.Press D to return to the Timekeeping Mode.
•The watch will return to the Timekeeping Mode automatically if you do not perform any operation for about 24 hours after entering the Barometer/Thermometer Mode.
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” (page
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.
•The barometric pressure change indicator is displayed if there has been significant change in barometric pressure. For more information, see “Barometric Pressure Change Indicator” (page
•It can take up to four or five seconds for the barometric pressure reading to appear after you enter the Barometer/Thermometer Mode.