Casio 5041 - User Manual

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Operation Guide 5041

MO0806-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.

Starting second hand movement and digital display

To conserve battery power, the watch is shipped from the

factory with its functions disabled. Pressing any one of the

watch’s three buttons will activate its functions, which will

cause the second hand to start moving and the digital

display to activate.

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

• 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.

Hour hand

Minute hand

Date

Second hand

(Timekeeping/

Stopwatch)

24-hour hand

Stopwatch

minute hand

Stopwatch second hand

▲

Hand Setting Mode Alarm Mode

World Time Mode

General Guide

• Press C to change from mode to mode.

• About one or two seconds after you enter the World Time Mode, Alarm Mode, or

Hand Setting Mode, the hands will move to the position that indicates the current

setting of the mode.

• In the Timekeeping Mode (except when a setting screen is on the display), press B

to illuminate the face of the watch for about one second.

Timekeeping Mode

Press C.

Stopwatch Mode

▲

Radio-controlled Atomic Timekeeping

This watch receives a time calibration signal and updates its time setting accordingly.

• Supported time calibration signals: Germany (Mainflingen), England (Anthorn).

• See the information under “Signal Reception Troubleshooting” if you experience

problems with time calibration signal reception.

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, which is the city where you normally will use the watch. For more

information, see “To specify your Home City”.

• 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.

To specify your Home City

1. In the Timekeeping Mode, hold down A for about five

seconds until the watch beeps twice.

• The second hand will move to the city code of the

currently selected Home City. This is the city code

setting mode.

2. Use B to move the second hand to the city code you

want to use as your Home City.

• Each press of B causes the second hand to advance

clockwise to the next city code.

• Time calibration signal reception is supported when

any one of the city codes shown in the table below is

selected as your Home City.

Second hand

City code

• For full information on city codes, see the “City Code Table”.

• In addition to the above, you also can select city codes that are outside the ranges

of the time calibration signal transmitters supported by this watch.

3. After the Home City setting is the way you want, press A to return to the

Timekeeping Mode.

• Normally, your watch should show the correct time as soon as you specify your

Home City code. If it does not, it should adjust automatically after the next auto

receive operation. You also can perform manual receive or you can set the time

manually.

German/U.K. Signal

City Code

LON

PA R

ATH

City Name

London

Paris

Athens

• Even if the time calibration signal is received correctly, there are some times when

the analog hands may not indicate the correct time. If this happens, use the

procedures under “Adjusting the Home Positions” to check the home positions of the

hands, and make adjustments as required.

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 six

times a day. 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”.

12 o’clock

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.

• Make sure the watch is facing the right way.

• Proper signal reception can be difficult or even impossible under the conditions listed

below.

• Signal reception normally is better at night than during the day.

• Time calibration signal reception takes from two to seven minutes, but in some

cases it can take as long as 14 minutes. Take care that you do not perform any

button operations or move the watch during this time.

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

Approximate Reception Ranges

Anthorn

Mainflingen

500 kilometers

1,500 kilometers

U.K. signal transmitter

approximate reception

range as of April 2007

• In April 2007, the U.K. signal transmitter was moved from Rugby to Anthorn, which

resulted in a slight shift in the approximate reception range of the signal. The shift is

so slight that there is virtually no change in the ability to receive the signal.

• Even when the watch is within the reception range of a transmitter, signal reception

may be impossible at times due to the effects of geographic contours, structures,

weather, the season of the year, the time of day, radio interference, etc. Note that the

signal becomes weaker at distances of approximately 500 kilometers from the

transmitter, which means that the influence of the conditions listed above becomes

even greater.

Need help?

Do you have a question about the Casio 5041 and is the answer not in the manual?

Summary

Getting Acquainted

Starting Second Hand Movement and Digital Display

Activates watch functions, starting the second hand and digital display upon first use.

Radio-controlled Atomic Timekeeping

Current Time Setting and Home City Specification

Setting the current time, including specifying the Home City for calibration.

Time Calibration Signal Reception Methods

Details on auto and manual reception of time calibration signals.

Twin Stopwatch

Entering the Stopwatch Mode

Procedure to enter the Stopwatch Mode and initial hand positions.

Elapsed Time Measurements

Steps for performing elapsed time measurements using Stopwatch A or B.

Resetting a Stopwatch

How to reset either one or both stopwatches to their starting positions.

World Time

Viewing Time in Another City

How to select and view the time in different world cities.

Toggle City Time Between Standard and Daylight Saving Time

Procedure to switch between Standard Time and DST for a selected city.

Alarm

Alarm Operation

How the alarm sounds at the preset time and how to stop it.

To Set an Alarm Time

Step-by-step guide to setting a specific alarm time.

To Toggle an Alarm On and Off

Instructions for activating or deactivating the alarm function.

Adjusting the Home Positions

To Adjust the Home Positions

Procedure to correctly set the home positions of the analog hands.

Timekeeping

To Set the Time and Date Manually

Steps to manually set the current time, date, and Home City.

Illumination

To Illuminate the Face of the Watch

How to activate the watch's LED illumination manually.

About the Auto Light Switch

Explanation of the auto light switch feature and its operation.

Radio-controlled Atomic Timekeeping Precautions

Summary

Getting Acquainted

Starting Second Hand Movement and Digital Display

Activates watch functions, starting the second hand and digital display upon first use.

Radio-controlled Atomic Timekeeping

Current Time Setting and Home City Specification

Setting the current time, including specifying the Home City for calibration.

Time Calibration Signal Reception Methods

Details on auto and manual reception of time calibration signals.

Twin Stopwatch

Entering the Stopwatch Mode

Procedure to enter the Stopwatch Mode and initial hand positions.

Elapsed Time Measurements

Steps for performing elapsed time measurements using Stopwatch A or B.

Resetting a Stopwatch

How to reset either one or both stopwatches to their starting positions.

World Time

Viewing Time in Another City

How to select and view the time in different world cities.

Toggle City Time Between Standard and Daylight Saving Time

Procedure to switch between Standard Time and DST for a selected city.

Alarm

Alarm Operation

How the alarm sounds at the preset time and how to stop it.

To Set an Alarm Time

Step-by-step guide to setting a specific alarm time.

To Toggle an Alarm On and Off

Instructions for activating or deactivating the alarm function.

Adjusting the Home Positions

To Adjust the Home Positions

Procedure to correctly set the home positions of the analog hands.

Timekeeping

To Set the Time and Date Manually

Steps to manually set the current time, date, and Home City.

Illumination

To Illuminate the Face of the Watch

How to activate the watch's LED illumination manually.

About the Auto Light Switch

Explanation of the auto light switch feature and its operation.

Radio-controlled Atomic Timekeeping Precautions

This document describes the CASIO watch, model 5041, a radio-controlled atomic timepiece with various functions and features.

Function Description:

The CASIO 5041 is a multi-functional watch that primarily offers radio-controlled atomic timekeeping. It automatically receives time calibration signals from transmitters in Mainflingen, Germany, and Anthorn, England, to ensure accurate time settings. The watch supports both Standard Time and Daylight Saving Time (DST) adjustments based on the received signals.

Beyond its core timekeeping capabilities, the watch includes:

Timekeeping Mode: Displays the current time (hour, minute, second, 24-hour hand) and date (month, day, year). It allows for manual setting of time and date, as well as specifying a Home City for automatic time calibration.
Stopwatch Mode: Features two independent stopwatches (Stopwatch A and Stopwatch B) capable of measuring elapsed time and cumulative elapsed time in 1/100-second units, up to 29 minutes, 59.99 seconds (30 minutes total). Timing continues internally even if the mode is exited.
World Time Mode: Provides current time information for 29 cities (29 time zones) around the world. Users can easily switch between cities and toggle DST settings for individual city codes.
Alarm Mode: Allows setting a single alarm that sounds for 10 seconds at the preset time, regardless of the current mode. The alarm can be toggled on or off.
Illumination: Equipped with an LED (light-emitting diode) to illuminate the watch face for easy reading in the dark. It also features an auto light switch that automatically illuminates the face when the watch is angled towards the user.

Important Technical Specifications:

Time Calibration Signals: Supports signals from Mainflingen, Germany, and Anthorn, England.
Reception Ranges: Approximate reception range of 1,500 kilometers for Anthorn and 500 kilometers for Mainflingen. Signal strength can be affected by distance, geographic contours, structures, weather, season, time of day, and radio interference.
Timekeeping Accuracy (without signal reception): ±20 seconds per month at normal temperature.
Date Range: The watch is designed to update the date and day of the week automatically from January 1, 2001, to December 31, 2099.
Stopwatch Capacity: 29 minutes, 59.99 seconds (30 minutes total) in 1/100-second units.
Auto Light Switch: Automatically turns off approximately six hours after being turned on to conserve battery power.
Power Source: Battery-powered.
Display: Analog hands for hour, minute, second, 24-hour, stopwatch minute, and stopwatch second, complemented by a digital display for date, mode indicators, and stopwatch 1/100 second.

Usage Features:

Activation: The watch is shipped with functions disabled to conserve battery power. Pressing any of the three buttons activates the second hand and digital display.
Mode Navigation: A dedicated button (A) is used to change between modes (Timekeeping, Stopwatch, World Time, Hand Setting, Alarm).
Home City Setting: Essential first step after purchase to enable automatic time calibration. The second hand points to the selected city code in the setting mode.
Time Calibration Signal Reception:
- Auto Receive: The watch attempts to receive the calibration signal automatically up to six times a day. The schedule depends on the Home City and DST setting. Reception is typically better at night.
- Manual Receive: Users can initiate a manual receive operation by holding down button A in Timekeeping Mode. The second hand indicates reception status (R for Ready, W for Work, Y for Yes, N for No).
- Reception Troubleshooting: Provides guidance for common issues like "N (NO)" indication or incorrect time settings after reception, suggesting actions like performing manual receive at night, checking Home City, or adjusting home positions.
Adjusting Home Positions: A procedure to correct the alignment of the analog hands (hour, minute, second, 24-hour, stopwatch minute, stopwatch second) if they do not indicate the correct time even after successful signal reception.
Daylight Saving Time (DST): The watch automatically switches between Standard Time and DST based on received signals when "Auto DST" is enabled. DST can also be toggled manually for individual World Time cities.
Illumination Control: Pressing button B in Timekeeping Mode illuminates the face for about one second. The auto light switch can be toggled on/off by holding button B for three seconds.
Scrolling: Button B is used to change hand settings in various modes, with holding it down initiating high-speed movement.
Auto Return: The watch automatically returns to Timekeeping Mode if left in Alarm or Hand Setting Mode for two to three minutes without operation, or exits setting modes after two to three minutes of inactivity.

Maintenance Features:

Battery Conservation: The auto light switch automatically turns off after approximately six hours to prevent battery drain.
Precautions:
- Signal Reception: Position the watch with its 12 o'clock side facing a window for optimal reception, especially at night. Avoid metal objects nearby.
- Electrostatic Charge/Magnetic Force: Strong electrostatic charge or magnetic force can interfere with signal reception and auto light switch operation.
- Auto Light Switch Safety: Exercise caution when using the auto light switch during activities that require full attention (e.g., running, operating vehicles) to avoid distraction or injury.
- Frequent Illumination: Frequent use of illumination shortens battery operating time.
- Mechanical Sound: A faint clicking sound when shaking the watch is normal and due to the mechanical operation of the auto light switch.