Casio 3155 - User Manual

Operation Guide 3155
1
MO0807-EA
Getting Acquainted
Congratulations upon your selection of this CASIO watch. To get the most out of your
purchase, be sure to read this manual carefully.
Keep the watch exposed to bright light
The electricity generated by the solar cell of the watch is
stored by a built-in battery. Leaving or using the watch
where it is not exposed to light causes the battery to run
down. Make sure the watch is exposed to light as much as
possible.
• When you are not wearing the watch on your wrist,
position the face so it is pointed at a source of bright
light.
• You should try to keep the watch outside of your sleeve
as much as possible. Charging is reduced significantly if
the face is only partially covered.
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Bright Light
Solar cell
• The watch continues to operate, even when it is not exposed to light. Leaving the
watch in the dark can cause the battery to run down, which will result in some watch
functions to be disabled. If the battery goes dead, you will have to re-configure watch
settings after recharging. To ensure normal watch operation, be sure to keep it
exposed to light as much as possible.
All
functions
enabled
LEVEL 1
LEVEL 2
LEVEL 3
LEVEL 4
Charge
Rechargeable battery
Bright Light
Electrical
energy
Solar cell
(Converts light to
electrical power.)
LEVEL 1
LEVEL 2
LEVEL 3
LEVEL 4
Some or all
functions
disabled
Dis-
charge
Battery charges in the light.
Battery discharges in the dark.
• The actual level at which some functions are disabled depends on the watch model.
• Frequent display illumination can run down the battery quickly and require charging.
The following guidelines give an idea of the charging time required to recover from a
single illumination operation.
Approximately 5 minutes exposure to bright sunlight coming in through a window
Approximately about 8 hours exposure to indoor fluorescent lighting
• Be sure to read “Power Supply” for important information you need to know
when exposing the watch to bright light.
If the display of the watch is blank...
If the display of the watch is blank, it means that the watch’s Power Saving function
has turned off the display to conserve power.
• See “Power Saving Function” for more information.
Note that CASIO COMPUTER CO., LTD. assumes no responsibility for any
damage or loss suffered by you or any third party arising through the use of this
product or its malfunction.
About This Manual
• Depending on the model of your watch, display text appears either as dark figures
on a light background or light figures on a dark background. All sample displays in
this manual are shown using dark figures on a light background.
• Button operations are indicated using the letters shown in the illustration.
• Each section of this manual provides you with the information you need to perform
operations in each mode. Further details and technical information can be found in
the “Reference” section.
General Guide
• Press C to change from mode to mode.
• In any mode (except when a setting screen is on the display), press L to illuminate
the display.
Timekeeping Mode
Press C.
Countdown Timer
Mode
Stopwatch Mode Alarm Mode
▲
Rally Mode Recall Mode
▲
World Time Mode
▲ ▲
▲ ▲ ▲
Radio-controlled Atomic Timekeeping
This watch receives a time calibration signal and updates its time setting accordingly.
• This watch is designed to pick up the time calibration signals transmitted in Germany
(Mainflingen), England (Anthorn), the United States (Fort Collins), China
(Shangqiu), and Japan (Fukushima, Fukuoka/Saga).
Current Time Setting
This watch adjusts its time setting automatically in accordance with a time calibration
signal. You also can perform a manual procedure to set the time and date, when
necessary.
• The first thing you should do after purchasing this watch is to specify your
Home City (the city where you normally will use the watch). For more
information, see “To specify your Home City” below.
• When using the watch outside the areas covered by the time signal transmitters, you
will have to adjust the current time setting manually as required. See “Timekeeping”
for more information about manual time settings.
• The U.S. time calibration signal can be picked up by the watch while in North
America. The term “North America” in this manual refers to the area that consists of
Canada, the continental United States, and Mexico.
To specify your Home City
1. In the Timekeeping Mode, hold down A until the city
code starts to flash, which indicates the setting screen.
2. Press D (east) and B (west) to select the city code
you want to use as your Home City.
LIS, LON : Lisbon, London
MAD, PAR , ROM, BER, STO : Madrid, Paris,
Rome, Berlin, Stockholm
ATH : Athens
MOW : Moscow
HKG, BJS, TPE : Hong Kong, Beijing, Taipei
SEL, TYO : Seoul, Tokyo
HNL : Honolulu
ANC : Anchorage
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City code
Hour : Minutes
PM indicator Seconds
YVR, LAX : Vancouver, Los Angeles
YEA, DEN: Edmonton, Denver
MEX, CHI : Mexico City, Chicago
MIA, YTO, NYC : Miami, Toronto, New York
YHZ : Halifax
YYT : St.Johns
3. Press A to exit the setting screen.
• Normally, your watch should show the correct time as soon as you select your Home
City code. If it does not, it should adjust automatically after the next auto receive
operation (in the middle of the night). You also can perform manual receive or you
can set the time manually.
• The watch will receive the time calibration signal automatically from the applicable
transmitter (in the middle of the night) and update its settings accordingly. For
information about the relationship between city codes and transmitters, see “Time
Calibration Signal Reception” and “Transmitters”.
• See the maps under “Approximate Reception Ranges” for information about the
reception ranges of the watch.
• You can disable time signal reception, if you want. See “To turn auto receive on and
off” for more information.
• Under factory default settings, auto receive is turned off for all of the following city
codes: MOW (Moscow), HNL (Honolulu), and ANC (Anchorage). For details about
turning on auto receive for these city codes, see “To turn auto receive on and off”.
Time Calibration Signal Reception
There are two different methods you can use to receive the time calibration signal:
auto receive and manual receive.
• Auto Receive
With auto receive, the watch receives the time calibration signal automatically up to 6
times a day (5 times a day for the Chinese calibration signal). When any auto receive
is successful, the remaining auto receive operations are not performed. For more
information, see “About Auto Receive”.
• Manual Receive
Manual receive lets you start a time calibration receive operation with the press of a
button. For more information, see “To perform manual receive”.
Important!
• When getting ready to receive the time calibration signal, position the watch as
shown in the nearby illustration, with its 12 o’clock side facing towards a window.
This watch is designed to receive a time calibration signal late at night. Because of
this, you should place the watch near a window as shown in the illustration when you
take it off at night. Make sure there are no metal objects nearby.
12 o’clock
or
• Make sure the watch is facing the right way.
• Proper signal reception can be difficult or even impossible under the conditions listed
below.
Inside or
among
buildings
Inside a
vehicle
Near a
construction
site, airport, or
other sources of
electrical noise
Near high-
tension
power lines
Among or
behind
mountains
Near household
appliances, office
equipment,
or a mobile
phone

Summary

Getting Acquainted

Keep Watch Exposed to Bright Light

Ensures watch battery charges properly by exposing it to light.

Handling a Blank Watch Display

Explains the power saving function that turns off the display to conserve power.

About This Manual

Provides guidance on understanding the watch's operation guide and its features.

General Guide

Mode Navigation Overview

Details how to switch between different operational modes like Timekeeping, Rally, and Stopwatch.

Radio-controlled Atomic Timekeeping

Current Time Setting

Automatic time adjustment via calibration signals and manual setting procedures.

Specifying Your Home City

Instructions for selecting the primary city for time calibration signal reception.

Time Signal Reception Methods

Describes automatic and manual reception of time calibration signals.

Time Signal Reception Details

Auto Receive Start Times

Lists the scheduled times throughout the day when the watch attempts automatic signal reception.

Approximate Reception Ranges

Illustrates geographical areas from which time calibration signals can be received.

Signal Strength Indicator

Explains how to interpret the indicator for optimal signal reception.

Performing Manual Receive

Step-by-step guide to initiating a time calibration signal reception manually.

Signal Reception Troubleshooting

Troubleshooting Common Reception Issues

Addresses problems like failed manual receive or incorrect time settings after signal reception.

Rally Mode

Rally Mode Operation Overview

Introduces the Rally Mode for measuring special stage elapsed time and tracking target times.

Special Stage Elapsed Time Measurement

Details how to measure and record elapsed times up to 99 hours, 59 minutes, 59.9 seconds.

To Record Paused Time

Instructions on saving a paused elapsed time measurement to memory.

To Reset Timing Operation

Procedure for resetting the elapsed time measurement to zero.

Starting Rally Mode Measurement

Guide to initiating rally timing, including auto start countdown.

Remaining Target Time Alert

Explains the audible alerts for approaching target time deadlines.

Recall Mode

Viewing Stored Data

How to access and review times and dates stored from Rally Mode measurements.

Correcting Recorded Times

Procedure to adjust recorded times to match official race results.

Deleting Memory Records

Steps to clear all stored measurement data from the watch's memory.

World Time

Viewing World City Times

Displays current time in 48 cities across 29 time zones worldwide.

Toggling Standard;Daylight Saving Time

How to switch between Standard Time and Daylight Saving Time for selected cities.

Alarms

Alarm Types

Describes the five types of alarms: daily, date, 1-month, monthly, and snooze.

Setting an Alarm Time

Guide to configuring alarm times, including day, month, and hour settings.

Alarm Operation

Stopping and Testing Alarms

How to stop the alarm tone and test the alarm function.

Turning Alarms On;Off

Procedure to enable or disable alarms and the Hourly Time Signal.

Hourly Time Signal Operation

Details on activating the hourly chime alert.

Stopwatch

Stopwatch Measurement Methods

Explains how to measure elapsed time, split times, and two-finisher times.

Countdown Timer

Configuring the Countdown Timer

Steps to set the countdown start time from one minute up to 24 hours.

Countdown End Beeper

Information on the audible alert when the countdown timer reaches zero.

Illumination and Auto Light Switch

Manual Illumination

How to activate the EL backlight manually and set its duration.

Auto Light Switch Function

Details on the feature that illuminates the display automatically when the watch is tilted.

Power Supply and Charging

Battery Power Indicator

Explains the display indicator for the rechargeable battery's charge level.

Recovery Times

Shows approximate exposure times needed to recharge the battery between levels.

Charging Precautions

Important safety advice regarding watch temperature during charging.

Setting Time and Date Manually

Guide to manually configuring the watch's time, date, and format settings.

Power Saving Function

Power Saving Operation

Describes how the watch enters a sleep state in low light to conserve battery.

Recovering from Sleep State

Methods to wake the watch from its power-saving sleep mode.

Turning Power Saving On;Off

Instructions for activating or deactivating the power-saving feature.

Radio-controlled Atomic Timekeeping Precautions

General Precautions

Important notes on factors affecting signal reception and time accuracy.

Transmitter Information

Details on which time calibration signals are received based on the Home City setting.

Auto Return Features

Information about automatic exit from setting screens after inactivity.

Illumination Precautions

Auto Light Switch Precautions

Safety advice for using the auto light feature, especially when driving.

UTC Differential;City Code List

City Code and UTC Offset Information

A comprehensive list of city codes and their corresponding UTC time differentials.

Casio 3155 Specifications

General

Type	Digital
Model	3155
Brand	Casio
Category	Watch
Display	LCD
Movement	Quartz
Features	Alarm, Stopwatch, Backlight