Casio 3253 Operation Manual page 4

Operation Guide 3253
Countdown Timer
The countdown timer can be set within a range of
one minute to 24 hours. An alarm sounds when the
countdown reaches zero.
• The countdown operation continues even if you exit the
Countdown Timer Mode.
• All of the operations in this section are performed in the
Countdown Timer Mode, which you enter by pressing
C (page E-5).
Hours Seconds
Minutes
To use the countdown timer
Press D while in the Countdown Timer Mode to start the
countdown timer.
• When the end of the countdown is reached, the alarm
sounds for 10 seconds or until you stop it by pressing
any button. The countdown time is reset to its starting
value automatically after the alarm stops.
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Reference
This section contains more detailed and technical information about watch operation.
It also contains important precautions and notes about the various features and
functions of this watch.
Button Operation Tone
The button operation tone sounds any time you press one
Mute indicator
of the watch's buttons. You can turn the button operation
tone on or off as desired.
• Even if you turn off the button operation tone, the alarm,
Hourly Time Signal, and Countdown Timer Mode alarm
all operate normally.
To turn the button operation tone on and off
In any mode (except when a setting screen is on the
display), hold down C for about three seconds to toggle
the button operation tone on (mute indicator not
displayed) and off (mute indicator displayed).
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World Time
• The seconds count of the World Time is synchronized with the seconds count of the
Timekeeping Mode.
• The current time in all World Time Mode cities is calculated in accordance with the
Greenwich Mean Time (GMT) differential for each city, based on the current Home
City time setting in the Timekeeping Mode.
• The GMT differential is the time difference of the time zone where the city is located
from Greenwich Mean Time.
• GMT differential is calculated by this watch based on Universal Time Coordinated
(UTC) data.
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Other: Day counter alarm (DAYS indicator flashes on the display when a target date
is reached regardless of year.)
Alarm: 5 Daily Alarms, Hourly Time Signal
Stopwatch
Measuring unit: 1/100 of a second
Measuring capacity: 23 hours, 59 minutes, 59.99 seconds
Functions: Elapsed time, split time and two finishes
Countdown Timer
Measuring unit: 1 second
Input range: 1 minute to 24 hours (1-minute increments and 1-hour increments)
Other: EL backlight, Button operation tone on/off
Battery: One lithium battery (Type: CR1616)
Battery life
3 years under the following conditions
• 2 seconds of backlight operation per day
• 10 seconds of alarm operation per day
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City Code Table
City UTC Offset/
City
Code GMT Differential
PPG Pago Pago –11
HNL Honolulu –10
ANC Anchorage –9
LAX Los Angeles –8
DEN Denver –7
CHI Chicago –6
NYC New York –5
CCS* Caracas –4
YYT St. Johns –3.5
RIO Rio De Janeiro –3
RAI Praia –1
LON London 0
PAR Paris +1
CAI Cairo
+2
JRS Jerusalem
JED Jeddah +3
THR Tehran +3.5
DXB Dubai +4
L
City UTC Offset/
City
Code GMT Differential
KBL Kabul +4.5
KHI Karachi +5
DEL Delhi +5.5
DAC Dhaka +6
RGN Yangon +6.5
BKK Bangkok +7
HKG Hong Kong +8
TYO Tokyo +9
ADL Adelaide +9.5
SYD Sydney +10
NOU Noumea +11
WLG Wellington +12
• Press D while a countdown operation is in progress to pause it. Press D again to
resume the countdown.
• To stop a countdown operation completely, first pause it (by pressing D), and then
press B. This returns the countdown time to its starting value.
To set the countdown start time
1. In the Countdown Timer Mode, hold down A until the
hours of the countdown start time start to flash, which
indicates the setting screen.
2. Press C to move the flashing between the hours and
minutes.
3. While a setting is flashing, use D (+) or B (–) to
change it.
• To set the starting value of the countdown time to
24 hours, set
4. Press A to exit the setting screen.
• Holding down C to turn the button operation tone on or off also causes the watch's
current mode to change.
• The mute indicator is displayed in all modes when the button operation tone is
turned off.
Scrolling
The B and D buttons are used in various modes and setting screens to scroll
through data on the display. In most cases, holding down these buttons during a scroll
operation scrolls at high speed.
Initial Screens
When you enter the World Time or Alarm Mode, the data you were viewing when you
last exited the mode appears first.
Specifications
Accuracy at normal temperature: ±30 seconds a month
Timekeeping: Hour, minutes, seconds, a.m. (A)/p.m. (P), day, day of the week,
month, year
Time system: Switchable between 12-hour and 24-hour formats
Calendar system: Full auto-calendar pre-programmed from the year 2000 to 2099
Standard time/Daylight saving time
Other: Home City code (can be assigned one of 30 city codes); Daylight Saving
Time (summer time)/Standard Time
Data Bank: 25 records (8-character name, 12-digit number)
World Time: 30 cities (29 time zones)
Other: Daylight Saving Time/Standard Time
Day Counter
Number of days between current date and a target date
Memory capacity: 5 counters (8-character text, target date (year, month, day))
Target date setting range: January 1, 1950 to December 31, 2049
• Based on data as of December 2009.
• The rules governing global times (UTC offset and GMT differential) and summer
time are determined by each individual country.
* In December 2007, Venezuela changed its offset from –4.0 to –4.5. Note however,
that this watch displays an offset of –4.0 (the old offset) for the CCS (Caracas,
Venezuela) city code.
0:00
.
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