Casio 2836 Operation Manual Download Page 1

Operation Guide 2836

1

MO0404-EB

Getting Acquainted

Congratulations upon your selection of this CASIO watch. To get the most out of your
purchase, be sure to carefully read this manual and keep it on hand for later reference
when necessary.

Expose the watch to bright light to charge its battery before using it.

You can use this watch even as its battery is being charged by exposure to bright
light.

Be sure to read “Battery” of this manual for important information you need to
know when exposing the watch to bright light.

If the display of the watch is blank...

If the 

SLEEP 

indicator is on the display, it means that the

display is blank because the watch’s Power Saving
function has turned off the display to conserve power.
Power Saving automatically turns off the display and puts
the watch into a sleep state whenever your watch is left for
a certain period where it is dark.

The initial factory default setting is Power Saving on.

The watch recovers from the sleep state if you move it to
a well-lit area

*

, if you press any button, or if you angle

the watch towards your face for reading.

*

 It can take up to five seconds for the display to turn on.

See “Power Saving Function” for more information.

Warning!

The longitude, lunitidal interval, Moon phase indicator, and tide graph data that
appear on the display of this watch are not intended for navigation purposes.
Always use proper instruments and resources to obtain data for navigation
purposes.

This watch is not an instrument for calculating low tide and high tide times. The
tide graph of this watch is intended to provide a reasonable approximation of tidal
movements only.

CASIO COMPUTER CO., LTD. assumes no responsibility for any loss, or any
claims by third parties that may arise through the use of this watch.

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.

(Light)

General Guide

Press 

C

 to change from mode to mode.

In any mode, press 

L

 to illuminate the display.

Moon / Tide Data Mode

Countdown Timer Mode

Dual Time Mode

Timekeeping Mode

Alarm Mode

Stopwatch Mode

Press 

C

.

Timekeeping

Use the Timekeeping Mode to set and view the current
time and date.

The tide graph shows tidal movements for the current
date in accordance with the current time as kept in the
Timekeeping Mode.

The Moon phase indicator shows the current Moon
phase in accordance with the current date as kept in the
Timekeeping Mode.

Important!

Moon phase, tide graph data, and Moon/Tide Data
Mode data will not be displayed properly unless the
Timekeeping Mode current date and time settings and
Home Site data are configured correctly. See “Home
Site Data” for more information.

Day of week

Month – Day

Hour : Minutes  Seconds

PM
indicator

Tide graph

Moon phase
indicator

To set the time and date

1. In the Timekeeping Mode, hold down 

A

 until the

seconds start to flash, which indicates the setting
screen.

2. Press 

C

 to move the flashing in the sequence shown

below to select other settings.

Hour

Seconds

12/24-Hour 

Format

Power Saving

Day

Month

Year

Minutes

3. When the setting you want to change is flashing, use 

D

 and 

B

 to change it as

described below.

Year

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To change this setting

Seconds

Hour, Minutes, Year,
Month, Day

12/24-Hour Format

Power Saving

Perform this button operation

Press 

D

 to reset to 

00

.

Use 

D

 (+) and 

B

 (–) to change the setting.

Press 

D

 to toggle between 12-hour (

12H

) and

24-hour (

24H

) timekeeping.

Press 

D

 to toggle Power Saving on (

ON

) and off

(

OFF

).

4. Press 

A

 twice to exit the setting screen.

The first press of 

A

 displays the GMT differential setting screen. Pressing 

A

 again

exits the setting screen.

See “Power Saving Function” for details about configuring Power Saving settings.

The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is
applied in all modes.

The day of the week is automatically displayed in accordance with the date (year,
month, and day) settings.

Home Site Data

Moon phase, tide graph data, and Moon/Tide Data Mode data will not be displayed
properly unless Home Site data (GMT differential, longitude, and lunitidal interval) is
configured correctly.

The GMT differential is the time difference of the time zone where the site is located
from Greenwich Mean Time.

Note that you must add one hour to the GMT differential for your time zone
whenever you change to Daylight Saving Time. Subtract one hour when you change
back to Standard Time.

The lunitidal interval is the time elapsing between the Moon’s transit over a meridian
and the next high tide at that meridian. See “Lunitidal Interval” for more information.

This watch displays lunitidal intervals in terms of hours and minutes.

The “Site/Lunitidal Interval Data List” provides GMT differential, longitude, and
lunitidal interval information around the world.

The following is the initial factory default Home Site data (Tokyo, Japan) when you
first purchase the watch, whenever battery power drops to Level 4, and whenever
you have the battery replaced. Change these settings to match the area where you
normally use the watch.

GMT differential (+9.0); Longitude (East 140 degrees); Lunitidal interval (5 hours,
20 minutes)

To configure Home Site data

1. In the Timekeeping Mode, hold down 

A

 until the

seconds start to flash, which indicates the setting
screen.

2. Press 

A

 again to display the GMT differential setting

screen.

3. Press 

C

 to move the flashing in the sequence shown

below to select other settings.

Lunitidal Interval 

Hours

Lunitidal Interval 

Minutes

Longitude

GMT

 differential

4. When the setting you want to change is flashing, use 

D

 and 

B

 to change it as

described below.

GMT differential

| | | | |

||

||

||

||

||

| |

| | |

Setting

GMT differential

Longitude

Lunitidal Interval
Hours, Minutes

Screen

Button Operations

Use 

D

 (+) and 

B

 (–) to change the setting.

You can specify a value in the range of –11.0
to +14.0, in 0.5-hour units.

Use 

D

 (+) and 

B

 (–) to change the setting.

You can specify a value in the range of
179°W to 180°E, in 1-degree units.

Use 

D

 (+) and 

B

 (–) to change the setting.

5. Press 

A

 to exit the setting screen.

Moon/Tide Data

Moon/tide data lets you view the Moon age and Moon
phase for a particular date, and tidal movements for a
particular date and time for the Home Site.

If you suspect that the Moon/tide data is not correct for
some reason, check the Timekeeping Mode data
(current time, date, and Home Site settings), and make
changes as required.

See “Moon Phase Indicator” for information about the
Moon phase indicator and “Tide Graph” for information
about the tide graph.

All of the operations in this section are performed in the
Moon/Tide Data Mode, which you enter by pressing 

C

.

Moon phase indicator

Tide gragh

Moon age

Summary of Contents for 2836

Page 1: ... use D and B to change it as described below Year To change this setting Seconds Hour Minutes Year Month Day 12 24 Hour Format Power Saving Perform this button operation Press D to reset to 00 Use D and B to change the setting Press D to toggle between 12 hour 12H and 24 hour 24H timekeeping Press D to toggle Power Saving on ON and off OFF 4 Press A twice to exit the setting screen The first press...

Page 2: ...progress beeper is turned on the watch beeps each second of the final 10 seconds before the countdown reaches the reset time Reset Period Progress Beeper The reset period is the portion of the countdown between the reset time and zero When the progress beeper is turned on the watch emits four short beeps at the top of each minute during the reset period and 30 seconds before the end of the countdo...

Page 3: ...f you exit the Stopwatch Mode Exiting the Stopwatch Mode while a split time is frozen on the display clears the split time and returns to elapsed time measurement All of the operations in this section are performed in the Stopwatch Mode which you enter by pressing C Seconds 1 100 second Minutes Hours To measure times with the stopwatch D Start Stop Elapsed Time Re start Clear D Stop D D B Split Ti...

Page 4: ...e battery from one level to the next Exposure Level Brightness Outdoor Sunlight 50 000 lux Sunlight Through a Window 10 000 lux Daylight Through a Window on a Cloudy Day 5 000 lux Indoor Fluorescent Lighting 500 lux Approximate Exposure Time Level 4 Level 3 Level 2 Level 1 2 hours 7 hours 12 hours 140 hours 29 hours 144 hours 293 hours 8 hours 40 hours 81 hours The above exposure time values are a...

Page 5: ...he backlight turns off in about one second even if you keep the watch pointed towards your face Static electricity or magnetic force can interfere with proper operation of the auto light switch If the backlight does not light try moving the watch back to the starting position parallel with the ground and then tilt it back towards you again If this does not work drop your arm all the way down so it...

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