2. OPERATION CHART: QW-1815/1835
GENERAL GUIDE
∙Press C to change from mode to mode.
∙In any mode (except when making countdown alarm settings) press D to illuminate the digital display.
The operational procedures for Module 1815, 1835 and 1826 are identical. All of the illustrations in this manual show Module 1826.
Timekeeping Mode |
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Stopwatch Mode |
Countdown |
Alarm Mode |
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Alarm Mode |
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[Module 1826]
[Module 1815] |
[Module 1835] |
TIMEKEEPING MODE
To set the time and date
Day of |
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Day |
1. Hold down A while in the Timekeeping Mode until the |
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Month |
seconds digits flash on the display. |
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week |
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2. Press C to change the selection (flashing) in the |
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following sequence. |
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Seconds |
Hour |
Minutes |
12/24- |
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Hour |
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Day |
Month |
Year |
Format |
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3. While the seconds setting is selected (flashing), press |
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E to reset it to 00. If you press E while the seconds |
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setting is in the range of 30 to 59, the seconds are |
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reset to 00 and 1 is added to the minutes. If the |
Hour |
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seconds setting is in the range of 00 to 29, the |
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Seconds |
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minutes count is unchanged. |
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PM |
Minutes |
4. While any other setting (beside seconds) is selected |
indicator |
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(flashing), press E to increase it or B to decrease it. |
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While the 12/24-hour format setting is selected, press |
Eto toggle it between 12 and 24.
∙Except for the seconds or 12/24-hour setting, holding down a button changes the setting at high speed.
∙When the 12-hour format is selected, the indicator P appears on the display to indicate "P.M." times. There is no indicator for "A.M." times.
5. After you set the time and date, press A to return to the Timekeeping Mode.
∙The day of the week is automatically set in accordance with the date.
∙The date can be set within the range of January 1, 1995 to December 31, 2039.
∙If you do not operate any button for a few minutes while a setting is flashing, the flashing stops and the watch goes back to the Timekeeping Mode automatically.
ABOUT THE BACKLIGHT
About the Auto Light Switch Function
When the auto light switch function is turned on, the backlight automatically turns on for two seconds under the conditions described below. Avoid wearing the watch on the inside of your wrist. Doing so causes the auto light switch to operate when not needed, which shortens battery life.
Moving the watch to a position that is parallel to the ground and then tilting it towards you approximately 40 degrees causes the backlight to illuminate.
Parallel to |
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ground |
40° |
∙The backlight may not illuminate if the face of the watch is more than 15 degrees off parallel to the left or right. Make sure that the back of your hand is parallel to the ground.
Caution
∙The backlight of this watch employs an electro-luminescent (EL) light, which loses its illuminating power after very long term use.
∙Frequent use of the backligfht shortens the battery life.
∙The watch emits an audible sound whenever the display is illuminated. This is because the EL light vibrates slightly when lit. It does not indicate malfunction of the watch.
Warning!
∙Never try to read your watch when mountain climbing or hiking in areas that are dark or in areas with poor footing. Doing so is dangerous and can result in serious personal injury.
∙Never try to read your watch when running on a roadside or in any other location where there might be vehicular or pedestrian traffic. Doing so is dangerous and can result in serious personal injury.
∙Never try to read your watch when riding on a bicycle or when operating a motorcycle or any other motor vehicle. Doing so is dangerous and can result in a traffic accident and serious personal injury.
∙When you are wearing the watch, make sure that its auto light switch function is turned off before riding on a bicycle or operating a motorcycle or any other motor vehicle.
Sudden and unintended operation of the auto light switch can create a distraction, which can result in a traffic accident and serious personal injury.
About the EL Alarm
While the EL alarm feature is turned on, the watch's EL backlight flashes along with the audible tone when a daily alarm time is reached, when the hourly time signal sounds, or when the end of a countdown alarm operation is reached. Pressing D while the EL alarm feature is turned on causes the display to remain illuminated for five seconds, instead of the normal two seconds when the EL alarm is turned off.
To turn the EL Alarm feature on and off
∙In the Timekeeping Mode, hold down B until the EL Alarm indicator appears on (EL alarm on) or disappears from (EL alarm off) the display.
EL Alarm indicator
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ON
D
Mode indicator
1/100 seconds
? 
Hours Seconds
Minutes
Hold down B
?
OFF
D
STOPWATCH MODE
The stopwatch Mode lets you measure elapsed time, split times, and two finishes. The range of the stopwatch is 23 hours, 59 minutes, 59.99 seconds. You can use the EL backlight at any time while the stopwatch is operating.
Parallel to ground |
More than 15 degrees |
More than 15 degrees |
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too high |
too low |
∙Static electricity or magnetic force can interfere with proper operation of the auto backlight function. If the auto backlight does not illuminate, try moving the watch back to the starting position (parallel with the ground) and then tilt it back toward you 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 or less after turn the face of the watch towards you. This does not necessarily indicate malfunction of the backlight.
To switch the auto light switch function on and off
In the Timekeeping Mode, hold down E for one or two seconds to turn the auto light switch function on and off.
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Auto light switch |
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indicator |
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0 |
10? |
Hold down E |
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ON |
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OFF |
Elapsed time measurement
E 
E 
E 
E 
B
Start Stop Re-start Stop Clear
Split time measurement
E |
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B |
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B |
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E |
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B |
Start |
Split |
Split release |
Stop |
Clear |
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Split time and 1st-2nd place times
E |
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B |
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E |
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B |
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B |
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Start |
Split |
Stop |
Split release |
Clear |
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First runner |
Second runner |
Record time of |
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finishes. |
finishes. |
second runner. |
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Record time of |
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first runner. |
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∙The auto light switch indicator is shown on the display in all modes while the auto light switch function is on.
∙In order to protect against running down the battery, the auto light switch function is automatically turned off approximately three hours after you turn it on. Repeat the above procedure to turn the auto light switch function back on if you want.
∙Pressing D at any time illuminates the display, regardless of the auto light switch's on/off setting.
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