Casio 2886 Owner's Manual

MA0611-EC

Operation Guide 2886

Introduction

Thank you for purchasing this CASIO product. To ensure that it can
provide you with the years of service for which it is designed, be sure to
read this manual carefully and follow the instructions contained herein.
Make sure you read the Safety Precautions before using this product for
the first time.

Note that the measurement functions of this product are not
intended for use in applications where special instruments are
required. The readings produced by this product are reasonably
accurate approximations only.

Safety Precautions

Symbols

This manual and the product itself use various symbols that are intended
to ensure safe operation of the product, to prevent injury to you and
others, and to protect against material damage and loss. The following
explains the meanings the symbols.

Example Symbols

The symbol indicates a caution. The symbol to the left
indicates an electric shock caution.

The symbol indicates something you must not do. The
symbol to the left indicates that you should not try to
disassemble something.

The symbol indicates something you must do. The
symbol to the left indicates that you must unplug the
power cord from the power outlet.

Danger!

Warning!

Caution!

Do not use this product while scuba diving (aqualung).

• This product is not a diving watch. Improper use of this
product can lead to serious accident.

Never try to remove the watch’s rechargeable (secondary)
battery. Leave all built-in battery replacement operations up
to your original retailer or authorized CASIO service center.

Whenever the watch’s built-in battery is removed from the
watch, take care to ensure that it is not swallowed
accidentally. Special care is required where young children
are present.

Keep batteries out of the reach of small children. Should a
battery ever be swallowed accidentally, contact a physician
immediately.

Should you ever notice any abnormality such as smoke,
strange odor, or excessive heat being emitted by the AC
adaptor or charger unit, immediately unplug the AC adaptor
from the power outlet and contact your original retailer or
authorized CASIO service center.

Do not allow long-term contact between your skin and the
AC adaptor or charger unit while it is conducting electricity,
or with the watch while it is being charged. Long term
contact creates the risk of low-temperature burn injury.

Disregarding information with this label creates
the risk of death or serious personal injury.

Disregarding information with this label could
possibly create the risk of death or serious
personal injury.

Disregarding information with this label could
possibly create the risk of personal injury or
material loss.

Warning!

Built-in battery

AC Adaptor and Charger Unit

Warning!

AC Adaptor and Charger Unit

Never allow water or foreign matter to get inside the AC
adaptor or charger unit, and do not allow them to become
wet. Should water or foreign matter get into the AC adaptor
or charger unit, immediately turn off power, unplug the AC
adaptor from the power outlet, and contact your original
retailer or authorized CASIO service center.

Failure to observe the following points concerning the AC
adaptor and charger unit creates the risk of fire and
personal injury.

• Do not use or leave the AC adaptor or charger unit near
a heater or any other source of heat.

• Do not use or leave the AC adaptor or charger unit in a
bathroom, near a humidifier, or in any other location
where it is exposed to splashing water or moisture.

• Never touch the AC adaptor or charger unit while your
hands are wet.

• Never expose the AC adaptor or charger unit to flame or
heat.

• Never try to take the AC adaptor or charger unit apart or
modify it in any way.

• Never short AC adaptor or charger unit terminals through
contact with needles, pins, or other metal objects.

• Take care not to drop the AC adaptor or charger unit or
otherwise subject it to strong impact.

• To ensure safety during lightning storms, unplug the AC
adaptor from the power outlet.

• Be sure to grasp the plug when unplugging the AC
adaptor.

• Never use the watch, AC adaptor, or charger unit while it
is covered by a blanket, etc.

• Keep the AC adaptor and charger unit out of the reach of
small children.

• Be sure to unplug the AC adaptor from the power outlet
before leaving on a trip or otherwise leaving it
unattended for long periods.

Caution!

Caring for Your Watch

A dirty or rusty case or band can soil the sleeve of your
clothing. Be sure to keep the case and band clean at all
times. Rust tends to form easily after the watch is exposed
to seawater and then left without cleaning.

Skin Irritation

Since the watch and the band come into direct contact with
the skin, the following conditions may cause irritation of the
skin.

• When a wearer is allergic to metal or leather

• When the watch or band is rusty dirty, sweaty, etc.

• When the wearer is in poor physical condition

• Tightening the band too tightly can cause you to sweat,

and can make it hard for air to pass under the band,
which can lead to skin irritation. Do not over-tighten the
band.

• The bacterial and odor resistant band suppresses the
formation of organisms and bacteria due to sweat, and
related odors. It does not protect against skin rash.

• Should you ever notice any abnormality, immediately
stop using the product and consult a physician.

Using the Auto Light

It is recommended that you turn off the Auto Light while
driving or riding in a motor vehicle. Unintended illumination
can distract the operator and create the risk of traffic
accident.

Never try to take the watch apart!

Never try to take the watch apart. Doing so creates the risk
of personal injury and malfunction of the watch.

1

Operation Guide 2886

Caution!

Use of the Product

To avoid unexpected accidents, always check around you
to ensure you are in a safe place before looking at the
display of the watch. Looking at the watch while
marathoning or jogging on the open road, while riding a
bicycle, or while operating a motor vehicle can lead to
accidents. Take care to avoid running into others.

Take care to avoid breaking your fingernails when fastening
and unfastening the band. Particular care is required by
people with long fingernails.

To avoid skin irritation due to unexpected injury or allergy,
do not wear the watch while sleeping.

When picking up or otherwise coming into contact with a
child, remove the watch from your wrist to avoid injury to
the child or causing irritation of the child’s skin.

Keep backup copies of data!

Make sure you always keep separate written copies of
important data to protect against its loss. Memory contents
can be deleted by malfunction repair, etc.

Data Reliability Precaution

• The Global Positioning System (GPS) is maintained by
the United States government. Its operation, precision
and other variables are subject to change.

• GPS precision is affected by the relative positions of the
satellites being tracked and of the watch.

AC Adaptor and Charger Unit

Use only the AC adaptor and charger unit that are designed
specifically for use with this product. Use of another type of
AC adaptor or charger unit can cause the built-in battery to
overheat and ignite, creating the risk of explosion.

Use only an AC adaptor whose markings show it is rated
for the power supply in the area where you are using it.

Basics

■ General Guide

The font used in the screen shots shown in this manual was selected for
ease of reading. Because of this, the appearance of the screen shots
may be slightly different from the actual display of the watch.

● Watch

Button

Button

Button

GPS Positioning

To use GPS for auto time calibration or for stopwatch measurements,
you need to start a GPS measurement operation before entering the
Timekeeping Mode or Stopwatch Mode.

1. In the Timekeeping Mode, hold down the E button for about one

second to start GPS measurement.

2. Perform the Timekeeping Mode or Stopwatch Mode operation you
want.

3. To stop GPS measurement, return to the Timekeeping Mode and
press the E button again.

• For details about GPS, see “GPS”.

• GPS measurement has two modes: NORMAL and LOW POWER.

LOW POWER uses less power than when NORMAL is selected. For
more information, see “Selecting the GPS Measurement Mode”.

Button

Charger Terminal

Button

Current Time and Date Screen (Timekeeping Mode)

Month

Year

Day

Day of the Week

PM Indicator
(A for AM)

Hour

Second

If your watch has a protective sticker on its glass, remove the sticker.

Minute

● Charger Unit

Release Button

Battery Compartment

Tray

Lock

Charge Switch

AC Adaptor Terminal

Battery Cover

Charge Lamp
(LED)

■ Auto Display Off

Auto Display Off conserves built-in battery power by turning off the
display automatically when you are not using the watch.

Auto Display Off Triggers

• No watch button operation for 60 minutes

• No movement of the watch for 60 minutes

Movement of the watch is detected by the angle sensor of the EL
backlight.

To recover from Auto Display Off

• Press any button.

• Moving the watch does not recover from Auto Display Off.

■ Turning the Operation Tone On and Off

You can turn off the operation tone that
sounds when you change from one mode to
another or when you perform other
operations. When any screen besides a
setting screen (one with a flashing setting) is
on the display, hold down the C button for
about one second.

• This will cause the operation tone to
sound, and toggle the operation tone on
or off.

• The M indicator is on the display while the operation tone is off.

• Holding down the C button also changes the watch’s current mode.

• The alarm, hourly time signal, and timer time up beeper continue to

sound, even when the operation tone is turned off.

M Indicator

2

Operation Guide 2886

GPS

The letters “GPS” stand for “Global
Positioning System”, which was developed
and is operated by the United States
Department of Defense.

A GPS device picks up radio signals from three or more of the system’s
satellites orbiting about 21,000 kilometers above the Earth, and then
applies the principles of triangulation to calculate a current position
based on the distance between each satellite and the GPS device, and
based on each satellite’s orbit.
Each satellite constantly transmits time information required for GPS
measurement, a one-second pulse (Universal Coordinated Time), the
satellite’s orbit information (ephemeris data), information about the orbits
of all the other satellites (almanac data), and other information.
Your watch analyzes the data it receives from the GPS satellites to
determine your current location, and calculates the distance you have
covered and your bearing.

● Important!

• The signals of the GPS system are controlled by the Tracking and
Control Center (TACC) of the United States, and are subject to
intentional precision degradation and signal termination at its
discretion.

• This watch depends on the reception of radio waves from artificial
satellites, so certain conditions can interfere with its operation.

• The following conditions can cause radio interference and make
reception impossible.

● Among buildings or
underground

Under
ground

● Surrounded by
skyscrapers

● Inside a
motor vehicle

Modes

Press the C button to cycle between modes.

• The watch will return to the Timekeeping Mode automatically if you do
not perform any button operation in the Guide Mode, Recall Mode, or
Alarm Mode.

Timekeeping Mode

Use the mode to view the current time and date.

Day of the Week

Button

PM Indicator
(A for AM)

Button

Hour : Minute Second

Alarm Mode

Use this mode to set the
alarm time, and to turn the
alarm and hourly time signal
on or off.

Mode Name

Month

Year

Day

Button

Stopwatch Mode

This mode measures
distance, speed, and elapsed
time.

Mode Name

Button

Button

● In wooded areas ● Near

If the date is greater than ± 512 weeks off when performing a
GPS measurement, following auto time correction the date will
become ± 1024 weeks from the actual date. In this case, refer to
“Configuring the Watch’s Basic Settings” and adjust the date.

high-voltage lines

● When the watch is
under your sleeve

■ GPS Auto Time Calibration by GPS

When the watch performs a GPS measurement, it also receives time
data and adjusts its time and date setting automatically.

• If you cannot receive a GPS signal for some reason, periodically
adjust the time and date setting manually using the procedure.

To perform GPS auto time calibration

1. In the Timekeeping Mode, hold down the
E button for about one second.

• This will start GPS measurement,
which is indicated by a flashing GPS
indicator (

• To stop GPS measurement, press the
E button again.

• A GPS measurement operation
normally takes one or two minutes, but
can take as long as five minutes. The
message “TIME OUT” will appear and
measurement will stop if measurement
is not possible.

• Summer time (DST) settings are not
configured automatically. See “To
configure basic settings” for more
information.

).

SEARCH Screen

During Measurement

GPS Indicator

Level

No Measurement

Number of Satellites

World Time Mode

This mode shows the current
time in 141 cities in 38 time
zones.

Mode Name

Timer Mode

This mode provides a
countdown timer.

Mode Name

Guide Mode

This mode tells you the
distance and direction from
your current location (BASE
POINT) to your destination
(GOAL POINT).

Mode Name

Recall Mode

Use this mode to recall
stopwatch records.

Mode Name

In order to facilitate GPS reception, set the current date manually
after you first purchase the watch.

• You also can speed up GPS reception by setting the month,
day, and approximate current time manually. See “To configure
basic settings” for information about manual time and date
settings.

3

Operation Guide 2886

y

■ Illumination

An EL (electro-luminescent) panel is used for display illumination.

To turn on illumination manually

1. In any mode, press the D button.

• This will turn on illumination for about 1.5
seconds.

• Pressing the D button turns on
illumination regardless of whether Auto
Light is on or off.

To turn Auto Light on or off

• Auto Light turns on illumination for about 1.5 seconds in all modes
when you angle the watch towards your face.

1. In the Timekeeping Mode, hold down the
D button for about one second to toggle
Auto Light on (
displayed).

Positioning Your Arm Correctly

• You should be wearing the watch on the outside of your wrist when
using the auto light switch.

• Make sure that a line running from the left side (9 o’clock) to the right
side (3 o’clock) of the watch is within 15 degrees parallel with the
ground. The auto light switch may not operate properly if this angle is
greater than 15 degrees.

● Illumination Precautions

• Illumination may be difficult to see under bright sunlight.

• Illumination will turn off automatically if you press any button while it is

turned on.

• You may notice a slight sound from the watch while illumination is
turned on. This is the sound of EL panel vibration and does not
indicate malfunction.

● Auto Light Precautions

• Auto Light will remain enabled for about 60 minutes after it last turned
on illumination. After that, it will turn off automatically in order to
conserve built-in battery power.

• If you want to continue using auto light, hold down the D button for
about one second again until the Auto Light on indicator reappears.
Note, however, that frequent use of Auto Light can run down the built­in battery.

• Illumination may not turn on immediately when you angle the watch
towards your face. This does not indicate malfunction.

• Illumination remains on for about 1.5 seconds only, even if you leave
the watch angled towards your face.

• Illumination may turn on unintentionally when you wear the watch on
the inside of your wrist, when you shake your arm, or when you raise
your arm. Be sure to turn off Auto Light whenever you do not need
illumination.

• Keep Auto Light turned off whenever you are wearing the watch on
the inside of your wrist.

• Electro-static charge and magnetism can interfere with Auto Light
operation and even make operation impossible. If this happens, lower
your arm to the starting position and then raise it again. If you still
have trouble with illumination, try lowering your arm down to your side
and then raise it to your face for reading.

You may hear a faint rattling sound when you move the watch
around. This sound is caused by the movement of a metal bulb
that controls Auto Light operation, and does not indicate
malfunction.

displayed) or off ( not

With the watch on your
wrist, position it parallel
with the ground.

Auto Light
On Indicator

Rotate your arm until the
watch is angled at about
40 degrees, so you can
read its face.

At least 40
degrees

Charging the Built-in battery

Use one of the following procedures to charge the built-in battery before
using the watch for the first time or whenever the “LOW BATTERY”
message appears.

To use the AC adaptor for charging

Connect the plug of the AC adaptor to the
charger unit’s AC adaptor terminal.

• Keep charger unit contacts clean by
wiping them with a clean cloth.

Plug

Open the cover,
and then insert the plug.

To use a battery for charging

• Note that charging from a battery is not possible while the AC adaptor
is connected to the charger unit’s AC adaptor terminal.

Use a 006P Type (9V) alkaline battery (6LR61) for charging.

1. Release the lock and then open
the battery cover.

Slide.

Release lock (down).

3. Insert the battery into the
battery compartment.

Insert.

Batter

Compartment

2. Attach the battery.

Attach.

Take care so the
and terminals are
connected correctly.

4. Close the battery cover and lock
it.

To charge the watch

1. Place the watch onto the tray of
the charger unit.

• Make sure the watch is
inserted securely into the
tray.

3. Turn on the charge switch. 4. When the LED goes out, turn off

LED on

ON

5. Remove the watch from the
charger unit.

• Pressing the release button
will cause the tray to return
to its original position with
considerable force. Take
care that you do not injure
your finger on the tray.

Remove.

Press the
release
button.

2. Secure the watch in the charger
unit.

Snap

Slide.

the charge switch.

LED off

Important!

• Note that the charger unit
becomes rather unstable
(because it is top-heavy) when
the watch is mounted on it.

• If the LED starts to flash while
the watch is on the charger unit,
turn off the charge switch and
then turn it back on again.

AC Adaptor

Pull out.

Lock (up).

Slide.

OFF

4

Operation Guide 2886

● Time Required for Charging

The watch takes about three hours to achieve a full charge from full
discharge.

● Number of Alkaline Battery (6LR61) Charges

You can charge the watch fully about five times with each alkaline
battery.

• Do not use a manganese battery for charging.

• If the LED flashes while the charger unit switch is turned on after you

remove the watch from the charger unit, it means that there is still
enough alkaline battery power left for charging.

• If the LED does not flash even though the charger unit switch is on, it
could mean that the alkaline battery is dead. Charge again using a
new alkaline battery.

● Approximate Continuous Built-in battery Operating Time

• Timekeeping Only: 7 to 11 days

• Continuous GPS Measurement: NORMAL: 2.0 hours

• Actual built-in battery operating time depends on operating conditions.

• Repeated charging and discharging shortens built-in battery operating

time.

LOW POWER: 4.3 hours

● Built-in battery Level

A low battery indicator appears on the
display to warn you that built-in battery
power is low. When built-in battery power
becomes very low, the low battery indicator
will start to flash and the message “LOW
BATTERY” will appear on the display.

• Low Battery Indicator On: Measurement
data (GPS, stopwatch) is saved as it is
measured.

• Low Battery Indicator Flashing: Stopwatch is forced to reset to all
zeroes. All measurement data (GPS, stopwatch) up to that point is
saved.

• Depending on conditions, the following functions may not operate
correctly or may become disabled while the low battery indicator is
displayed or flashing: GPS reception, stopwatch operations, Recall
Mode data delete, Guide Mode destination editing and delete, contrast
adjustment.

Low Battery
Indicator

● Built-in battery Life

Built-in battery capacity becomes 70% of normal after 300 charge/
discharge cycles. Actual built-in battery life depends on operating
conditions.

● Handling

• Be sure to keep the charger contacts of the watch clean at all times.
Dirt can cause poor contact. Before charging, wipe the contacts with a
dry cloth, tissue paper, etc. Never allow needles, pins, or other metal
objects to touch the contacts.

• Built-in battery performance deteriorates under low temperatures,
which can cause the “LOW BATTERY” message to appear more
quickly than normal.

• The allowable temperature range of the charger unit during charging is
5°C to 35°C (41°F to 95°F).

• Use only the AC adaptor that comes with the charger unit. Never try to
use any other type of AC adaptor.

• Never plug the AC adaptor into any power supply that is outside the
power supply voltage range marked on the adaptor. Doing so creates
the risk of fire, malfunction, and electric shock.

• The LED will flash if an error occurs during charging. If this happens,
turn the charger unit’s charge switch off and then back on again. If this
does not correct the problem, contact your original retailer or
authorized CASIO service center.

• Take care to avoid cutting or damaging of the AC adaptor’s power
cord. Do not place any heavy object on the cord or expose it to heat. A
damaged power cord creates the risk of fire, accident, and electric
shock.

• Never plug in or unplug the AC adaptor while your hands are wet.
Doing so creates the risk of electric shock.

• Do not plug the AC power cord into an extension cord shared by other
devices. Doing so creates the risk of fire, malfunction, and electric
shock.

• Should the AC adaptor’s power cord become damaged (internal wires
exposed, shorted, etc.), request repair from your original retailer or
authorized CASIO service center. Using a damaged power cord
creates the risk of fire, malfunction, and electric shock.

• The AC adaptor will become warm to the touch during charging. This
is normal and does not indicate malfunction.

• Always unplug the AC adaptor from the power outlet when you are not
using it.

• Never cover the AC adaptor with a tablecloth, rug, blanket, cushion, or
similar item while charging. Internal heat build-up creates the risk of
fire.

Using the Stopwatch Mode

To enter the Stopwatch Mode, press the C button once in the
Timekeeping Mode.

About

2 seconds

In order to perform a stopwatch measurement that includes GPS
measurement, you need to start the GPS measurement (by
holding down the E button for about one second) before entering
the Stopwatch Mode.

• The watch will beep and “FIX” will appear on the display to
indicate that GPS measurement has started.

• The GPS indicator ( ) flashes on the display while GPS
measurement is in progress.

● Main Functions

Measurement

Time Measurement Unit: 1/100 second
Time Measurement Range: 23:59'59.99" (24 hours)

• Elapsed time returns to zero automatically and timing continues from
there when the maximum limit is reached.

Distance Measurement Unit: kilometers or miles

• See “To configure basic settings” for information about selecting the
distance unit.

Distance Measurement Range: 999.99 km (621.36 miles)

Speed Measurement Range: 0.0 km/h to 40.0 km/h

Measurement Data: Lap time, split time, target time differential, target

• GPS measurement is used to measure target time differential, target
distance differential, distance covered, speed, and pace.

Memory Data

Number of Records: 50 (up to 100 laps per record)

• Laps are counted from 0 to 999.

Record Items: Lap time, split time, running time, distance covered,

• GPS measurement is used to measure distance covered, average
pace, distance within a lap, and pace within a lap.

average pace, distance within a lap, pace within a lap

● Memory

Stopwatch measurement data is saved
temporarily in watch memory, and then
moved to flash memory when you reset the
watch to all zeroes. The message
“MEMORY FULL” will appear on the display
if you try to save data when there are
already 50 records stored in flash memory.
In this case, you will need to delete data you
no longer need in order to store more data.

• See “Deleting Records” for information
about deleting data from memory.

● Stopwatch Time Displays

During the first hour of a stopwatch time measurement, the display
shows minute, second, and 1/100-second values. After the end of the
first hour is reached, the display switches to hour, minute, and second
values.

Example: Lap time display

First hour Subsequent Hours

Elapsed Time
(minutes, seconds, 1/100 second)

(0.0 mph to 24.9 mph)

distance differential, distance covered, speed, pace

(minutes, seconds, 1/100 second)

Lap Time

Elapsed Time
(hours, minutes, seconds)

5