Operation Guide 2872
Power Saving
When turned on, Power Saving automatically enters a sleep state whenever the watch is left for a certain period in an area where it is dark. The table below shows how watch functions are affected by Power Saving.
•There are actually two sleep state levels: “display sleep” and “function sleep”.
Elapsed Time in | Display | Operation |
Dark |
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60 to 70 minutes | Blank, with | Display is off, but all functions are |
(Display Sleep) | PS flashing | enabled. |
6 or 7 days | Blank, with | All functions are disabled, but |
(Function Sleep) | PS not flashing | timekeeping is maintained. |
•Wearing the watch inside the sleeve of clothing can cause it to enter the sleep state.
•The watch will not enter the sleep state while the digital time is between 6:00 AM and 9:59 PM. If the watch is already in the sleep state when the digital time reaches 6:00 AM, however, it will remain in the sleep state.
•The watch will not enter the sleep state while it is in the Countdown Timer or Stopwatch Mode.
To recover from the sleep state
Perform any one of the following operations.
•Move the watch to a
•Press any button.
•Angle the watch towards your face for reading.
To turn Power Saving on and off
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| 1. | In the Timekeeping Mode, hold down A until | |
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| the seconds start to flash, which indicates the |
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| l | 2. | Press C seven times until the Power Saving | |||
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| 3. | Press D to toggle Power Saving on (ON) and | ||
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| 4. | Press A to exit the setting screen. | ||
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•The Power Saving on indicator (PS) is on the display in all modes while Power Saving is turned on.
Backlight Precautions
•The
•The illumination provided by the backlight may be hard to see when viewed under direct sunlight.
•The backlight automatically turns off whenever an alarm sounds.
•The watch may emit an audible sound whenever the display is illuminated. This is due to vibration of the EL panel used for illumination, and does not indicate malfunction.
•Frequent use of the backlight runs down the battery.
Auto light switch precautions
•Wearing the watch on the inside of your wrist, movement of your arm, or vibration of your arm can cause frequent activation of the auto light switch and illumination of the display. To avoid running down the battery, turn off the auto light switch whenever engaging in activities that might cause frequent illumination of the display.
•Note that wearing the watch under your sleeve while the auto light switch is turned on can cause frequent illumination of the display and can run down the battery.
•The backlight may not light if the face of the
More than 15 degrees | watch is more than 15 degrees above or below |
too high | parallel. Make sure that the back of your hand |
| is parallel to the ground. |
| • The backlight turns off after the preset |
| illumination duration (see “To specify the |
| illumination duration”), even if you keep the |
| watch pointed towards your face. |
• Static electricity or magnetic force can interfere with proper operation of the auto light switch. If the backlight does not light, try moving the watch back to the starting position (parallel with the ground) and then tilt it back towards your face again. If this does not work, drop your arm all the way down so it hangs at your side, and then bring it back up again.
• Under certain conditions, the backlight may not light until about one second after you turn the face of the watch towards you. This does not necessarily indicate malfunction of the auto light switch.
• You may notice a very faint clicking sound coming from the watch when it is shaken back and forth. This sound is caused by mechanical operation of the auto light switch, and does not indicate a problem with the watch.
Digital Compass Precautions
This watch features a
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 ferro- concrete 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 be sure to 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 one of the calibration procedures under “Calibrating the Bearing Sensor”.
Calibrating the Bearing Sensor
Whenever you suspect that direction readings produced by the watch are wrong, you should calibrate it.You can use either one of two calibration procedures: bidirectional calibration or northerly calibration.
Use bidirectional calibration when you want to take readings within an area exposed to magnetic force. This type of calibration should be used if the watch becomes magnetized for any reason.
With northerly calibration, you “teach” the watch which way is north (which you have to determine with another compass or some other means).You could use this calibration procedure, for example, to set the watch to indicate true north instead of magnetic north.
Important!
•If you want to perform both bidirectional and northerly calibration, be sure to perform bidirectional calibration first, and then perform northerly calibration. This is necessary because bidirectional calibration cancels any previously set northerly calibration setting.
•The more correctly you perform bidirectional calibration, the better the accuracy of the bearing sensor readouts.You should perform bidirectional calibration whenever you change environments where you use the bearing sensor, and whenever you feel that the bearing sensor is producing incorrect readings.
Precautions about bidirectional calibration
•You 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.
•Make sure that you do not move the watch while calibration of either direction is in progress.
•You 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.
To perform bidirectional calibration
l | l | l | l | 1. Press B to enter the Digital Compass Mode. | |
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| l | 2. Hold down A until x1x appears on the | |
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• At this time, the magnetic north pointer flashes at the 12 o’clock position to indicate that the watch is ready to calibrate the first direction.
3. Place the watch on a level surface facing any direction you want, and press B to calibrate the first direction.
• xxx is shown on the display while calibration is being performed. x2x appears in the upper part of the display, and the magnetic north pointer flashes at the 6 o’clock position when calibration of the first direction is complete. This means that the watch is ready for calibration of the second direction.
4. Rotate the watch 180 degrees.
5. Press B again to calibrate the second direction.
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