E-40
Button Operation Tone
When enabled, the button operation tone sounds any time you press one of the watch’s buttons. You can
enable or disable the button operation tone as desired.
•
Even if you disable the button operation tone, the alarm, Hourly Time Signal, and Countdown Timer
Mode alarm all operate normally.
To enable or disable the button operation tone
1. In the Timekeeping Mode, hold down
A
until
ADJ
appears in the upper display.
•
When you release
A
(after
ADJ
appears), city code will be fl ashing in the upper display.
2. Use
C
to cycle through settings on the upper display until the current
button operation tone setting (
MUTE
or
KEY
) is shown.
•
See the sequence in step 2 of the procedure under “To change the
current time and date settings” (page E-17) for information about
how to scroll through setting screens.
3. Press
D
to toggle the button operation tone setting between enabled (
KEY
) and disabled (
MUTE
).
4. After the setting is the way you want, press
A
to exit the setting screen.
E-41
Low Battery Indication
A low battery indicator appears on the display when battery power is low. Have the batteries replaced as
soon as possible.
Note
•
For information about battery life guidelines and supported battery types, see the product
specifi cations.
See “Specifi cations” (page E-45).
The conditions below are in effect while the low battery indicator is fl ashing.
•
All hands are stopped.
•
Except for the low battery indicator, all other display functions are
disabled.
•
Watch tones are disabled.
•
Display illumination is disabled.
•
Watch operations are disabled.
Note
•
Sequentially or repeatedly performing sensor, light, alarm, and other power intensive operations
over a short period can cause a sudden drop in battery power, which will make the low battery
indicator fl ash. Even though the low battery indicator may disappear and watch functions may
become re-enabled, battery replacement is recommended.
Low battery indicator
Low battery indicator
E-42
Troubleshooting
Time Setting
■
The current time setting is off by a couple of hours.
Your Home City setting may be wrong (page E-15). Check your Home City setting and correct it, if
necessary.
■
The current time setting is off by one hour.
You may need to change your Home City’s standard time/daylight saving time (DST) setting. Use the
procedure under “To change the current time and date settings” (page E-17) to change the standard time/
daylight saving time (DST) setting.
World Time Mode
■
The time for my World Time City is off in the World Time Mode.
This could be due to incorrect switching between standard time and daylight saving time.
See “To confi gure World Time City and summer time settings” (page E-27) for more information.
E-43
Batteries
■
The low battery indicator is fl ashing on the digital display.
The watch’s battery power is low. Have the batteries replaced as soon as
possible.
See “Low Battery Indication” (page E-41).
Low battery indicator
Low battery indicator
E-44
Temperature Readings
■
The temperature unit setting won’t change.
The temperature unit setting is always Celsius (
°C
) whenever
TOKYO
is selected as the Home City. In
this case, the setting cannot be changed.
■
“ERR” appears while a sensor operation is in progress.
Subjecting the watch to strong impact can cause sensor malfunction or improper contact of internal
circuitry. When this happens,
ERR
(error) will appear on the upper display and sensor operations will be
disabled.
•
If
ERR
appears while a measurement operation is being performed in a sensor mode, restart the
measurement. If
ERR
appears on the upper display again, it can mean there is something wrong with
the sensor.
•
If
ERR
keeps appearing during measurement, it could mean there is a problem with the applicable
sensor.
E-45
Specifi cations
Accuracy at normal temperature:
±15 seconds a month
Digital Timekeeping:
Hour, minutes, seconds, p.m. (P), month, day, day of the week
Time format: 12-hour and 24-hour
Calendar system: Full Auto-calendar pre-programmed from the year 2000 to 2099
Other: Three display formats (day of week, day; month, day, seconds; hour, minutes, seconds);
Home City code (can be assigned one of 48 city codes); standard time / daylight saving time
(summer time)
Analog Timekeeping:
Hour, minutes (hand moves every 10 seconds), seconds, World Time timekeeping
(Hands move every 20 seconds.)
Thermometer:
Measurement and display range: –10.0°C to 60.0°C (or 14.0°F to 140.0°F)
Display unit: 0.1°C (or 0.2°F)
Measurement timing: Every fi ve seconds in the Thermometer Mode
Other: Calibration; Selectable measurement unit
Temperature Sensor Precision:
±2°C (±3.6°F) in range of –10°C to 60°C (14.0°F to 140.0°F)
World Time:
48 cities (31 time zones)+ UTC; Home City/World Time City swapping
Other: daylight saving time/standard time
Stopwatch:
Measuring unit: 1/100 second
Measuring capacity: 59' 59.99"
Measuring modes: Elapsed time, split time, two fi nishes
E-46
Countdown Timer:
Measuring unit: 1 second
Countdown range: 60 minutes
Setting ranges: Countdown start time (1 to 60 minutes, 1-minute increments)
Alarms:
5 daily alarms; Hourly Time Signal
Illumination:
LED light; Selectable illumination duration (approximately 1.5 seconds or 3 seconds);
Auto Light Switch
Other:
Button operation tone on/off, Low battery alert; Moving the Hands to View the Digital Display
Battery:
Two silver oxide batteries (Type: SR927W)
Approximate battery operating time: 2 years under the following conditions:
•
1 illumination operation (1.5 seconds) per day
•
Alarm: 10 seconds/day
•
Temperature readings: Once/week
Frequent use of illumination runs down the battery. Particular care is required when using the auto
light switch (page E-37).
L-1
Operation Guide 5446