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Operation Guide 5311
To take a direction reading
1.Point the 12 o’clock position of the watch in the direction you want to read.
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| 2. In the Timekeeping Mode, keep the watch horizontal as |
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| you press A. |
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| ξ The x Second Hand will move to 12 o’clock* and the |
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| direction reading operation will start. After about two | |
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| seconds, the x Second Hand will move to indicate |
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| north. |
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| * If the x Second Hand does not point to 12 o’clock, it |
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| could mean that the hand is out of position. Use the |
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| procedure under “To adjust home positions” (page |
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| to correct the hand position. |
ξThe x Second Hand indicates magnetic north.
ξThe x Second Hand will continue to move for about 20 seconds after you start the digital compass operation as it adjusts its magnetic north reading. After that, the hand will stop at the final reading.
ξTo take another direction reading, press Aagain.
ξTo stop an ongoing direction reading operation and return to the Timekeeping Mode, press C.
ξIf you do not perform any operation, the watch will return to normal timekeeping after about one or two minutes.
3.Press Cto return to the Timekeeping Mode.
Note
ξIf the z Hour Hand stops at 6 o’clock and the c Minute Hand stops at 12 o’clock, it could mean that the watch has detected abnormal magnetism. For more information, see “Abnormal magnetism detection is indicated.” (page
North indicated on the map
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North indicated by north pointer
Example: Determining your current position and your objective on a map
Having an idea of your current location and the direction to your destination is important when mountain climbing or hiking. In this example, we show you how to plot directions on a map and determine your current location using direction measurements taken by the watch.
1.In the Timekeeping Mode, press A.
2.Rotate the map (without moving the watch) until north on the map is aligned with north as indicated by the watch’s second hand. Depending on how the watch is set up, it may be indicating magnetic north or true north.
Magnetic north: Indicates north in accordance with the Earth’s magnetic fi eld.
True north: Indicates the direction to the North Pole.
ξFor information about setting the watch up to indicate magnetic north or true north, see “Magnetic North and True North” (page
3.Determine your location and destination by checking the map and the geographic contours around you.
Calibrating Direction Readings
You can use the information in this section to calibrate direction readings, which helps to improve digital compass accuracy.
Direction Reading Calibration Methods
Important!
ξTo ensure correct direction readings by this watch, be sure to perform bidirectional calibration before using it. The watch may produce incorrect direction readings if you do not perform bidirectional calibration.
ξKeep the watch away from audio speakers, magnetic necklace, cell phone, and other devices that generate strong magnetism. Exposure to strong magnetism can magnetize the watch and cause incorrect direction readings. If incorrect readings continue even after you perform bidirectional calibration, it could mean that your watch has been magnetized. If this happens, contact your original retailer or an authorized CASIO Service Center.
Bidirectional Calibration
ξUse this method when using the watch to take readings in an area where magnetic force is present, or if you notice that the readings produced by the watch are different from another compass.
Northerly Calibration
ξUse this method to calibrate the watch to detect true north (when it is known by you).
To perform bidirectional calibration
1. In the Digital Compass Mode, pull out the crown.
ξThe x Second Hand and c Minute Hand will
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| move to 12 o’clock, and the z Hour Hand will |
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| move to 6 o’clock. |
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| 2. Press Ato start calibration of Point 1. |
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| ξ After about seven seconds, the x Second Hand | |
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| will move to Y (YES) if Point 1 calibration was |
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| successful or to N (NO) if it was not successful. |
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| ξ If the x Second Hand is pointing at N (NO) |
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| (unsuccessful), press Ato perform Point 1 |
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| calibration again. |
ξIf the x Second Hand is pointing at Y (YES) (successful), it will move to 6 o’clock after about two seconds.
To perform northerly calibration
Important!
ξIf you want to perform both northerly and bidirectional calibration, perform bidirectional calibration first, and then perform northerly calibration. This is necessary because bidirectional calibration cancels any existing northerly calibration setting.
1.In the Digital Compass Mode, pull out the crown.
ξThe x Second Hand and c Minute Hand will
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| move to 12 o’clock, and the z Hour Hand will |
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| move to 6 o’clock. |
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| 2. | Press C. The z Hour Hand will move to 12 o’clock. | |||
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| 3. | Place the watch on a level surface, and position it so |
that its 12 o’clock position points north (as measured with another compass).
Precautions about bidirectional calibration
ξYou can use any two opposing directions for bidirectional calibration. You must, however, make sure that they are 180 degrees opposite each other. Remember that if you perform the procedure incorrectly, you will get wrong bearing sensor readings.
ξDo not move the watch while calibration of either direction is in progress.
ξYou should perform bidirectional calibration in an environment that is the same as that where you plan to be taking direction readings. If you plan to take direction readings in an open field, for example, calibrate in an open field.
3. | Rotate the watch 180 degrees. | |
4. | Press Ato start calibration of Point 2. | |
| ξ After about seven seconds, the x Second Hand will | |
| move to Y (YES) if Point 2 calibration was successful | |
or to N (NO) if it was not successful. | ||
ξ If the x Second Hand is pointing at N (NO) | ||
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| (unsuccessful), press Ato return to Point 1 | |
| calibration. |
5.After calibration is complete, push the crown back in and then lock it.
ξThis will start a magnetic north reading operation.
ξPress C to return to the Timekeeping Mode.
Y (YES) 4. Press Ato start calibration.
ξAfter about seven seconds, the x Second Hand will move to Y (YES) if calibration was successful or to N (NO) if it was not successful.
ξIf the x Second Hand is pointing at N (NO) (unsuccessful), press Ato perform calibration again.
5. After calibration is complete, push the crown back in | |
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| and then lock it. |
ξThis will start a magnetic north reading operation.
ξPress C to return to the Timekeeping Mode.
N (NO)